Pipe and bar outer wall polishing and grinding equipment

Abstract

The application relates to a pipe and bar outer wall polishing and grinding device, and belongs to the technical field of polishing and grinding devices.The device comprises a workbench and a wet dust removal device, the workbench is provided with a machining mechanism for polishing and grinding the outer wall of a workpiece, the workbench is symmetrically provided with multiple conveying tables at two ends, the areas at the two ends of the workbench are respectively a feeding area and a discharging area, the conveying tables and the workbench are both provided with a sliding mechanism for controlling the sliding of the workpiece from the feeding area to the discharging area, the machining mechanism comprises multiple groups of support frames arranged on the workbench, the support frames are slidably connected with machining plates, the machining plates are provided with grinding heads for grinding the workpieces, the support frames are provided with negative pressure collection openings, the negative pressure collection openings are located in the tangent direction of the grinding heads and the workpieces, and the negative pressure collection openings are connected with the wet dust removal device through pipelines.The application has the effects of improving the working efficiency and safety of polishing and grinding the outer wall of the pipe and bar.

Description

Technical Field

[0001] This application relates to the technical field of polishing and grinding equipment, and in particular to a polishing and grinding equipment for the outer wall of pipes and bars. Background Technology

[0002] GIL refers to gas-insulated metal-enclosed transmission lines. Its structure mainly consists of conductors, insulating media, and a metal shell. The conductors are usually made of copper or aluminum and have excellent conductivity. In current technology, the quality requirements for the outer surface of the conductor are very high. In the actual production process, it is necessary to remove the oxide layer, impurities, bumps and scratches from the surface of the conductor. At present, the production process generally uses manual polishing or lathe sanding (for short workpieces, manual operation using special tools) to polish and grind its outer surface. This method not only consumes a lot of time and is difficult to control the amount of grinding precisely, but the dust generated by grinding is harmful to the operator's health, and improper handling may also pose an explosion risk. Summary of the Invention

[0003] In order to improve the efficiency and safety of polishing and grinding the outer wall of pipes and bars, this application provides a polishing and grinding device for the outer wall of pipes and bars.

[0004] The pipe and bar outer wall polishing and grinding equipment provided in this application adopts the following technical solution:

[0005] A polishing and grinding equipment for the outer wall of pipes and bars includes a worktable and a wet dust removal device. The worktable is equipped with a processing mechanism for polishing and grinding the outer wall of the workpiece. Multiple conveyor tables are symmetrically arranged at both ends of the worktable, dividing the areas at both ends of the worktable into a loading area and a unloading area, respectively. A control mechanism for controlling the loading and unloading of workpieces is provided between adjacent conveyor tables. Both the conveyor tables and the worktable are equipped with a sliding mechanism for controlling the sliding of the workpiece from the loading area to the unloading area.

[0006] The processing mechanism includes multiple sets of support frames mounted on a workbench, arranged along the length of the workbench. A processing plate is slidably connected to each support frame. A processing component for controlling the sliding of the processing plate is provided on the support frame. A grinding head for grinding the workpiece is provided on the processing plate. The grinding heads on the multiple sets of support frames are arranged from coarse to fine along the direction towards the unloading area. A negative pressure collection port is provided on the support frame, located in the tangential direction between the grinding head and the workpiece grinding. The negative pressure collection port is connected to a wet dust removal device via a pipeline.

[0007] By adopting the above technical solution, the workpiece is placed on the conveyor table in the loading area by a control mechanism, and then slid to the worktable by a sliding mechanism. After being ground by the processing mechanism on the worktable, it moves to the conveyor table in the unloading area and is unloaded by the control mechanism. The overall process is highly automated, effectively improving the efficiency of workpiece grinding. The dust generated by the grinding head and workpiece is collected through a negative pressure collection port and then enters a wet dust collector for centralized dust collection and treatment through pipelines, which is environmentally friendly and reduces the health hazards of dust to operators.

[0008] Preferably, the grinding head is an abrasive belt. The processing plate is rotatably connected to a control shaft, a support shaft, and a positioning shaft that fits against the inner wall of the abrasive belt. The processing plate is provided with a grinding element for driving the control shaft to rotate. When the control shaft rotates, it drives the abrasive belt to rotate. The support shaft is used to provide support for the abrasive belt. There are two positioning shafts, which are symmetrically arranged on both sides of the workpiece. The end of the positioning shaft away from the processing plate is rotatably connected to a support rod, and the end of the support rod away from the positioning shaft is rotatably connected to the processing plate.

[0009] By adopting the above technical solution, the control shaft rotates under the action of the grinding parts, thereby driving the sanding belt to rotate and grind the workpiece. The support rod provides support for the positioning shaft, making it less likely for the positioning shaft to tilt relative to the processing plate under the pressure of the workpiece, thus improving the service life of the processing mechanism.

[0010] Preferably, a tensioning block is slidably connected to the processing plate, and a tensioning shaft is rotatably connected to the tensioning block. The tensioning shaft is in contact with the inner wall of the sanding belt, and the processing plate is provided with a tensioning element for controlling the sliding of the tensioning block.

[0011] By adopting the above technical solution, the sliding of the tensioning block is controlled by the tensioning element, thus ensuring that the abrasive belt remains taut at all times. This extends the service life of the abrasive belt to a certain extent and improves the grinding effect on workpieces using the abrasive belt.

[0012] Preferably, the control mechanism includes a control frame arranged perpendicular to the workpiece conveying direction, a control block slidably connected to the control frame, a control slide rail arranged along the length of the control frame, a control groove that cooperates with the control slide rail on the control block, and a control component for controlling the sliding of the control block on the control frame;

[0013] A clamping block is slidably connected to the control block. The clamping block is provided with a fitting groove for workpiece fitting. The clamping block slides along the vertical direction of the control frame. The control block is provided with a sliding control component for controlling the sliding of the clamping block.

[0014] By adopting the above technical solution, the sliding of the control block is controlled by the control component, and the sliding of the clamping block is controlled by the sliding control component, thereby realizing the automatic loading and unloading of workpieces. The degree of automation is high and the labor cost is reduced.

[0015] Preferably, the sliding mechanism includes an active block and a passive block. The active block is fixed on the worktable or conveyor table, and the passive block is slidably disposed on the worktable or conveyor table. An active shaft is rotatably connected to the active block, and the active shaft is provided with a plurality of active wheels that are in contact with the workpiece. A plurality of passive wheels corresponding to the active wheels are rotatably connected to the passive block. The passive wheels are in contact with the workpiece and are inclined relative to the active wheels. The active block is provided with a conveying component for driving the active shaft to rotate, and the passive block is provided with an adjusting component for controlling the sliding of the passive block.

[0016] By adopting the above technical solution, when the active shaft rotates under the action of the conveyor, the active wheel can cooperate with the inclined driven wheel, so that the workpiece rotates on its own while sliding along the length of the conveyor table. This facilitates the conveying of the workpiece and improves the reliability and uniformity of grinding the workpiece with the sanding belt.

[0017] Preferably, a linkage shaft is rotatably connected between two adjacent conveyor platforms, and linkage gears are coaxially provided at both ends of the linkage shaft. A drive gear corresponding to the linkage gear is provided at the end of the drive shaft, and the drive gear and the corresponding linkage gear are connected by a synchronous toothed belt.

[0018] By adopting the above technical solution, with the cooperation of the linkage gear, the drive gear and the synchronous toothed belt, when the drive shaft on one of the conveyor platforms rotates under the action of the conveying component, it can drive the drive shaft on the other conveyor platform to rotate, thereby reducing the drive source required for workpiece conveying and reducing the cost of use.

[0019] Preferably, the adjusting component includes an adjusting screw threadedly connected to the driven block, the driven block having an adjusting threaded hole that engages with the adjusting screw, the driven block sliding under the action of threaded transmission when the adjusting screw rotates, the conveying table and the worktable both having adjusting slide rails, and the driven block having an adjusting groove that engages with the adjusting slide rails.

[0020] By adopting the above technical solution, when the adjusting screw rotates, the driven block slides along the length direction of the adjusting screw under the action of the threaded transmission. Through the cooperation of the adjusting slide rail and the adjusting slide groove, the stability of the driven block sliding in the cooperation between the adjusting screw and the adjusting threaded hole is improved. Furthermore, through the sliding of the driven block, the distance between the driven wheel and the driving wheel can be adjusted, thereby adapting to workpieces of different diameters and improving the applicability of the device.

[0021] Preferably, the conveyor table and the worktable are further provided with a limiting bracket, a limiting rod is rotatably connected to the limiting bracket, and a limiting wheel is rotatably connected to the end of the limiting rod facing the active table. After the limiting rod rotates, the limiting wheel is in contact with the end face of the workpiece away from the active table. The limiting bracket is provided with a limiting component for controlling the rotation of the limiting rod.

[0022] By adopting the above technical solution, the limiting rod rotates under the action of the limiting component, causing the limiting wheel to fit against the end face of the workpiece away from the active table. This effectively limits the jumping of the workpiece during grinding and conveying, and improves the grinding quality of the workpiece to a certain extent.

[0023] Preferably, the workbench is provided with a cover, and the two ends of the cover are provided with material passage holes for workpieces to pass through. An inspection door is rotatably connected to the cover.

[0024] By adopting the above technical solution and using the cover, the dust generated by the grinding head after polishing the workpiece is less likely to move to the loading or unloading area, effectively reducing the impact of dust on operators and improving the safety of polishing the workpiece. The design of the inspection door facilitates the inspection and maintenance of the processing mechanism, effectively extending the service life of the processing mechanism.

[0025] Preferably, sensors for detecting workpiece position are provided on both sides of the processing plate, and a mounting bracket for supporting the sensors is provided on the processing plate.

[0026] By adopting the above technical solution, the position of the workpiece is determined by the sensor, thereby controlling the start and stop of the grinding motor. This makes it easier to control the start and stop time of the grinding motor and reduces the cost of use.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. The workpiece is placed on the conveyor table in the loading area by the control mechanism, and then slid to the worktable by the sliding mechanism. After being polished by the processing mechanism on the worktable, it is moved to the conveyor table in the unloading area and unloaded by the control mechanism. The whole process is highly automated and effectively improves the efficiency of polishing the workpiece.

[0029] 2. The dust generated during grinding between the grinding head and the workpiece is collected through a negative pressure collection port and then enters a wet dust removal equipment through pipeline for centralized dust collection and treatment. This is environmentally friendly and hygienic, reduces the health hazards of dust to operators, and improves the safety of grinding workpieces. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0031] Figure 2 This is a schematic diagram of the conveyor platform structure located in the unloading area in an embodiment of this application.

[0032] Figure 3 This is a detailed view of the conveyor table in the embodiments of this application.

[0033] Figure 4 This is a schematic diagram of the control mechanism structure in an embodiment of this application.

[0034] Figure 5 This is a schematic diagram of the workbench structure in an embodiment of this application.

[0035] Figure 6 This is a schematic diagram of the internal structure of the workbench in an embodiment of this application.

[0036] Figure 7 This is a detailed drawing of the processing mechanism in the embodiments of this application.

[0037] Figure 8 This is a schematic diagram of the back structure of the processing plate in an embodiment of this application.

[0038] Explanation of reference numerals in the attached drawings: 1. Workbench; 11. Loading area; 12. Unloading area; 13. Cover; 131. Material passage hole; 132. Inspection door; 2. Conveyor table; 3. Sliding mechanism; 31. Driving block; 311. Driving shaft; 312. Driving bearing; 313. Driving wheel; 314. Conveyor motor; 315. Driving toothed belt; 316. Linkage shaft; 317. Synchronous toothed belt; 32. Driven block; 321. Driven wheel; 322. Driven part; 323. Adjusting screw; 324. Adjusting slide rail; 325. Dual-output reducer; 326. Adjusting motor; 327. Adjusting shaft; 4. Control mechanism; 41. Control frame; 411. Control slide rail; 412. Control rack; 42. Control block; 421. Control motor 422. Screw jack; 423. Guide chute; 43. Clamping block; 431. Fitting groove; 432. Guide column; 5. Machining mechanism; 51. Support frame; 511. Negative pressure collection port; 512. Support screw; 513. Support motor; 514. Support slide rail; 52. Machining plate; 521. Threaded block; 522. Support slider; 523. Tensioning block; 524. Tensioning shaft; 525. Tensioning cylinder; 526. Sensor; 527. Mounting bracket; 53. Sanding belt; 54. Control shaft; 541. Grinding motor; 55. Support shaft; 56. Positioning shaft; 561. Support rod; 6. Wet dust removal equipment; 61. Pipeline; 7. Limit bracket; 71. Limit rod; 72. Limit wheel; 73. Limit cylinder. Detailed Implementation

[0039] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0040] The pipe and bar outer wall polishing and grinding equipment disclosed in this application refers to pipes and bars as workpieces. Figure 1 and Figure 2 The system includes a workbench 1, with multiple conveyor platforms 2 symmetrically arranged at both ends of the workbench 1. The number of conveyor platforms 2 at both ends of the workbench 1 is the same, and the number of workbench 1 depends on the actual length of the workpiece. In this embodiment, two conveyor platforms 2 are provided at one end of the workbench 1, dividing the areas at both ends of the workbench 1 into a loading area 11 and a unloading area 12, respectively. Both the conveyor platforms 2 and the workbench 1 are provided with a sliding mechanism 3 for the workpiece to slide from the loading area 11 toward the unloading area 12.

[0041] Reference Figure 2 and Figure 3 The sliding mechanism 3 includes a driving block 31 and a driven block 32, both of which are arranged along the sliding direction of the workpiece. The driving block 31 is fixed on the worktable 1 or the conveyor 2, while the driven block 32 is slidably arranged on the worktable 1 or the conveyor 2, sliding perpendicular to the sliding direction of the workpiece. A driving shaft 311 is rotatably connected to the driving block 31, which is arranged along the length of the driving block 31. The driving block 31 is provided with a driving bearing 312 for supporting the driving shaft 311. Multiple bearings coaxially fixed to the driving shaft 311 are also provided. The number of drive wheels 313 depends on the length of the drive shaft 311. A driven wheel 321 corresponding to the drive wheel 313 is rotatably connected to the driven block 32. The driven wheel 321 is in contact with the workpiece. The driven block 32 is provided with a driven part 322 for supporting the driven wheel 321. The driven wheel 321 is inclined relative to the drive wheel 313. The driven part 322 is rotatably mounted on the driven block 32. The angle of inclination of the driven wheel 321 relative to the drive wheel 313 can be adjusted by the rotation of the driven part 322, thereby adjusting the feed speed of the workpiece.

[0042] Reference Figure 2The active block 31 is provided with a conveying component for driving the active rotating shaft 311 to rotate. The conveying component includes a conveying motor 314 fixed on the conveying table 2 or the worktable 1. The end of the active rotating shaft 311 is coaxially fixed with an active gear. The conveying motor 314 is provided with a conveying gear corresponding to the active gear. The active gear and the conveying gear are connected by an active toothed belt 315. Through the rotation of the conveying gear, the active gear can rotate under the action of gear transmission. The drive shafts 311 on two adjacent conveyor tables 2 rotate under the action of the same conveyor motor 314, thereby reducing energy consumption. A linkage shaft 316 is rotatably connected between the two adjacent conveyor tables 2. The linkage shaft 316 is set along the length of the conveyor table 2 and rotates around its own axis. Both ends of the linkage shaft 316 are coaxially fixed with linkage gears, which correspond to the drive gears on the drive shafts 311. The linkage gears and the corresponding drive gears are connected by a synchronous toothed belt 317. With the cooperation of the linkage gears, drive gears and synchronous toothed belt 317, when the drive shaft 311 on one conveyor table 2 rotates under the action of the conveyor motor 314, it can drive the drive shaft 311 on the other conveyor table 2 to rotate, reducing the drive source required for workpiece conveying and reducing the cost of use.

[0043] Reference Figure 3 The driven block 32 is provided with an adjusting component for controlling its sliding. The adjusting component includes multiple adjusting screws 323 threadedly connected to the driven block 32. The number of adjusting screws 323 depends on the length direction of the driven table. The adjusting screws 323 are arranged along the sliding direction of the driven block 32. The driven block 32 is provided with adjusting threaded holes that are threadedly engaged with the adjusting screws 323. When the adjusting screws 323 rotate, the driven block 32 slides along the length direction of the adjusting screws 323 under the action of threaded transmission. Adjusting slide rails 324 are provided on both the conveyor table 2 and the worktable 1. Adjusting grooves are provided on the driven block 32 that are engaged with the adjusting slide rails 324. The engagement of the adjusting slide rails 324 and the adjusting grooves improves the stability of the driven block 32's sliding when engaged with the adjusting screws 323 and the adjusting threaded holes. The sliding of the driven block 32 can adjust the distance between the driven wheel 321 and the driving wheel 313, thereby adapting to workpieces of different diameters and expanding the applicability of the device.

[0044] Reference Figure 3Multiple dual-output reducers 325 corresponding to the adjusting screws 323 are fixed on the conveyor table 2 or worktable 1. An adjusting motor 326 is also fixed on the conveyor table 2 or worktable 1. The output shaft of the adjusting motor 326 is coaxially fixed with the input shaft of the dual-output reducer 325 located at the end. The adjusting screw 323 is coaxially fixed with the output shaft of the corresponding dual-output reducer 325. Two adjacent dual-output reducers 325 are fixed together by an adjusting shaft 327. One end of the adjusting shaft 327 is coaxially fixed with the output shaft of one of the dual-output reducers 325, and the other end of the adjusting shaft 327 is coaxially fixed with the input shaft of the other dual-output reducer 325. This allows multiple adjusting screws 323 to rotate synchronously under the action of the same driving source, saving energy and improving the synchronicity of the rotation of the adjusting screws 323, thereby improving the stability of the sliding of the driven block 32.

[0045] Reference Figure 1 , Figure 2 and Figure 4 A control mechanism 4 for controlling the loading and unloading of workpieces is provided between adjacent conveyor tables 2. In actual application, a placement platform for holding workpieces before or after processing also needs to be placed between adjacent conveyor tables 2. The control mechanism 4 includes a control frame 41, which can be fixed to the conveyor table 2 by a plate. The control frame 41 is set perpendicular to the conveying direction of the workpiece. A control block 42 is slidably connected to the control frame 41. A control slide rail 411 is provided on the control frame 41 along the length of the control frame 41. The control block 42 is provided with a control slide rail 411. The control slide rail 411 and the control slide rail cooperate to improve the stability of the control block 42 sliding on the control frame 41. The control frame 41 is provided with a control component for controlling the sliding of the control block 42. The control component includes a control rack 412 fixed on the control frame 41. A control motor 421 is fixed on the control block 42. The output shaft of the control motor 421 is provided with a control gear that meshes with the control rack 412. When the control gear rotates, it drives the control block 42 to slide along the length direction of the control slide rail 411.

[0046] Reference Figure 4 A clamping block 43 is slidably connected to the control block 42. The clamping block 43 slides vertically and has a fitting groove 431 for workpiece fitting. The fitting groove 431 makes it difficult for the workpiece to move out of the clamping block 43. The control block 42 has a sliding control component for controlling the sliding of the clamping block 43. The sliding control component is a screw jack 422. The clamping block 43 has a guide post 432 and the control block 42 has a guide groove 423 for the guide post 432 to slide. The cooperation between the guide post 432 and the guide groove 423 effectively improves the reliability of the sliding of the clamping block 43.

[0047] During loading, the control block 42 first slides until the clamping block 43 is below the workpiece, and then controls the clamping block 43 to slide until the workpiece is removed from the placement table. At this time, the workpiece is located in the fitting groove 431. Then, the control block 42 is controlled to slide until the workpiece is above the conveyor table 2, and the clamping block 43 retracts, so that the workpiece is placed on the conveyor table 2, completing the loading. During unloading, the control block 42 is first controlled to slide until the clamping block 43 is below the conveyor table 2, and then controls the clamping block 43 to slide until the workpiece is removed from the conveyor table 2. Then, the control block 42 is controlled to slide until the workpiece is above the placement table, and the clamping block 43 retracts, so that the workpiece is placed on the placement table, completing the unloading.

[0048] Reference Figure 1 , Figure 5 and Figure 6 The worktable 1 is equipped with a processing mechanism 5 for polishing and grinding the outer wall of the workpiece. The processing mechanism 5 includes multiple sets of support frames 51 set on the worktable 1. The number of support frames 51 depends on the length of the worktable 1. The multiple sets of support frames 51 are arranged along the length direction of the worktable 1. A processing plate 52 is slidably connected to the support frame 51. The processing plate 52 is equipped with a grinding head for grinding the workpiece. The grinding heads on the multiple sets of support frames 51 are arranged from coarse to fine in the direction towards the unloading area 12. During the grinding and polishing process, the workpiece can rotate and move under the action of the drive wheel 313. During the grinding and polishing process, the oxide layer, scratches, foreign matter, etc. on the outer surface of the workpiece can be effectively removed. No new defects are generated after polishing. The outer surface texture is clear and regular, which improves the consistency and quality of the workpiece appearance.

[0049] Reference Figure 5 and Figure 6 The workbench 1 is equipped with a cover 13. Both ends of the cover 13 are provided with material passage holes 131 for workpieces to pass through. A maintenance door 132 is rotatably connected to the cover 13. The cover 13 prevents the dust generated by the grinding head after polishing the workpiece from easily moving to the loading area 11 or unloading area 12, effectively reducing the impact of dust on the operator and improving the safety of polishing the workpiece. The maintenance door 132 facilitates the inspection and maintenance of the processing mechanism 5, effectively extending the service life of the processing mechanism 5.

[0050] Reference Figure 5 The pipe and rod outer wall polishing and grinding equipment also includes a wet dust removal device 6. Two negative pressure collection ports 511 are fixedly connected to the support frame 51. The two negative pressure collection ports 511 are located on both sides of the tangential direction of the grinding head and the workpiece grinding. The negative pressure collection ports 511 and the wet dust removal device 6 are connected by a pipeline 61. The dust generated by the grinding head and the workpiece grinding is collected through the negative pressure collection ports 511 and then enters the wet dust removal device 6 through the pipeline 61 for centralized dust collection and treatment, which is environmentally friendly and reduces the health hazards of dust to operators.

[0051] Reference Figure 6 and Figure 7 The grinding head uses an abrasive belt 53. A control shaft 54, a support shaft 55, and a positioning shaft 56, which rotatably connect to the inner wall of the abrasive belt 53, are mounted on the processing plate 52. The processing plate 52 is equipped with a grinding element for driving the control shaft 54 ​​to rotate. In this embodiment, the grinding element is a grinding motor 541, which is fixed to the processing plate 52. The output shaft of the grinding motor 541 is coaxially fixed with the control shaft 54. When the control shaft 54 ​​rotates, it can drive the abrasive belt 53 to rotate, thereby allowing the workpiece to be ground by the abrasive belt 53. For grinding, the support shaft 55 provides support for the abrasive belt 53. There are two positioning shafts 56, which are symmetrically arranged on both sides of the workpiece. The end of the positioning shaft 56 away from the processing plate 52 is rotatably connected to the support rod 561. The end of the support rod 561 away from the positioning shaft 56 is rotatably connected to the processing plate 52. The support rod 561 provides support for the positioning shaft 56, making it less likely for the positioning shaft 56 to tilt relative to the processing plate 52 under the pressure of the workpiece, thus improving the service life of the processing mechanism 5.

[0052] Reference Figure 7 and Figure 8 The support frame 51 is equipped with a machining component for controlling the sliding of the machining plate 52. By sliding the machining plate 52, the distance between the sanding belt 53 and the workpiece can be controlled, improving the reliability of grinding the workpiece with the sanding belt 53. The machining component includes a support screw 512 rotatably mounted on the support frame 51, a threaded block 521 that is threadedly engaged with the support screw 512 fixed on the machining plate 52, and a support motor 513 for controlling the rotation of the support screw 512 fixed on the cover 13. The output shaft of the support motor 513 is coaxially fixed with the support screw 512. When the support screw 512 rotates, the machining plate 52 can slide under the action of threaded transmission. The support frame 51 is also equipped with a support slide rail 514, and the machining plate 52 is equipped with a support slider 522 that cooperates with the support slide rail 514. The cooperation between the support slide rail 514 and the support slider 522 improves the stability of the sliding of the machining plate 52.

[0053] Reference Figure 6 and Figure 7 A tensioning block 523 is slidably connected to the processing plate 52, and a tensioning shaft 524 is rotatably connected to the tensioning block 523. The tensioning shaft 524 is in contact with the inner wall of the sanding belt 53. The processing plate 52 is provided with a tensioning element for controlling the sliding of the tensioning block 523. The tensioning element includes a tensioning cylinder 525 fixed on the processing plate 52. The piston rod of the tensioning cylinder 525 is fixed to the tensioning block 523. The sliding of the tensioning block 523 can be controlled by the tensioning cylinder 525, so that the sanding belt 53 can always maintain a taut state, which to a certain extent extends the service life of the sanding belt 53 and improves the grinding effect of the workpiece by the sanding belt 53.

[0054] Reference Figure 7 and Figure 8 Both sides of the processing plate 52 are equipped with sensors 526 for detecting the position of the workpiece. The processing plate 52 is equipped with a mounting bracket 527 for supporting the sensors 526. The position of the workpiece is determined by the sensors 526, thereby controlling the start and stop of the grinding motor 541. This makes it easier to control the start and stop time of the grinding motor 541 and achieves the effect of reducing the cost of use.

[0055] Reference Figure 2 and Figure 3 Limiting brackets 7 are also provided on the conveyor table 2 and the worktable 1. Generally, there is one limiting bracket 7 on the conveyor table 2, and limiting brackets 7 are provided on both sides of the worktable 1. Three limiting brackets 7 are provided on the conveyor table 2 near the worktable 1 in the unloading area 12. A limiting rod 71 is rotatably connected to the limiting bracket 7. A limiting wheel 72 is rotatably connected to the end of the limiting rod 71 facing the active table. After the limiting rod 71 rotates, the limiting wheel 72 is made to fit against the end face of the workpiece away from the active table, thereby effectively limiting the jumping of the workpiece during grinding and conveying, and improving the grinding quality of the workpiece to a certain extent. The limiting bracket 7 is provided with a limiting component for controlling the rotation of the limiting rod 71. The limiting component includes a limiting cylinder 73 rotatably connected to the limiting bracket 7. The piston rod of the limiting cylinder 73 is rotatably connected to the end of the limiting rod 71 away from the limiting wheel 72.

[0056] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A polishing and grinding equipment for the outer wall of pipes and bars, characterized in that, Includes a workbench (1) and a wet dust removal device (6). The workbench (1) is equipped with a processing mechanism (5) for polishing and grinding the outer wall of the workpiece. Multiple conveyor tables (2) are symmetrically arranged at both ends of the workbench (1), dividing the areas at both ends of the workbench (1) into a loading area (11) and a unloading area (12). A control mechanism (4) for controlling the loading and unloading of workpieces is provided between adjacent conveyor tables (2). Both the conveyor tables (2) and the workbench (1) are equipped with a sliding mechanism (3) for controlling the workpiece to slide from the loading area (11) toward the unloading area (12). The processing mechanism (5) includes multiple sets of support frames (51) set on the workbench (1). The multiple sets of support frames (51) are arranged along the length direction of the workbench (1). A processing plate (52) is slidably connected on the support frame (51). The support frame (51) is provided with a processing part for controlling the sliding of the processing plate (52). The processing plate (52) is provided with a grinding head for grinding the workpiece. The grinding heads on the multiple sets of support frames (51) are arranged from coarse to fine along the direction towards the unloading area (12). The support frame (51) is provided with a negative pressure collection port (511). The negative pressure collection port (511) is located in the tangential direction of grinding head and workpiece. The negative pressure collection port (511) is connected to the wet dust removal equipment (6) through a pipeline (61). The grinding head is made of a sanding belt (53). The processing plate (52) is rotatably connected to a control shaft (54), a support shaft (55), and a positioning shaft (56) that fit against the inner wall of the sanding belt (53). The processing plate (52) is provided with a grinding component for driving the control shaft (54) to rotate. When the control shaft (54) rotates, it drives the sanding belt (53) to rotate. The support shaft (55) is used to provide support for the sanding belt (53). There are two positioning shafts (56). The two positioning shafts (56) are symmetrically arranged on both sides of the workpiece. The end of the positioning shaft (56) away from the processing plate (52) is rotatably connected to a support rod (561). The end of the support rod (561) away from the positioning shaft (56) is rotatably connected to the processing plate (52). The control mechanism (4) includes a control frame (41) arranged perpendicular to the workpiece conveying direction. A control block (42) is slidably connected on the control frame (41). A control slide rail (411) is provided on the control frame (41) along the length direction of the control frame (41). A control groove is provided on the control block (42) to cooperate with the control slide rail (411). A control component for controlling the sliding of the control block (42) is provided on the control frame (41). A clamping block (43) is slidably connected to the control block (42). The clamping block (43) is provided with a fitting groove (431) for workpiece fitting. The clamping block (43) slides along the vertical direction of the control frame (41). The control block (42) is provided with a sliding control component for controlling the sliding of the clamping block (43). The sliding mechanism (3) includes an active block (31) and a driven block (32). The active block (31) is fixed on the worktable (1) or the conveyor (2). The driven block (32) is slidably disposed on the worktable (1) or the conveyor (2). An active shaft (311) is rotatably connected to the active block (31). The active shaft (311) is provided with a plurality of active wheels (313) that fit with the workpiece. A plurality of driven wheels (321) corresponding to the active wheels (313) are rotatably connected to the driven block (32). The driven wheels (321) fit with the workpiece. The driven wheels (321) are inclined relative to the active wheels (313). The active block (31) is provided with a conveying component for driving the active shaft (311) to rotate. The driven block (32) is provided with an adjusting component for controlling the sliding of the driven block (32).

2. The pipe and rod outer wall polishing and grinding equipment according to claim 1, characterized in that, A tensioning block (523) is slidably connected to the processing plate (52), and a tensioning shaft (524) is rotatably connected to the tensioning block (523). The tensioning shaft (524) is in contact with the inner wall of the sanding belt (53). The processing plate (52) is provided with a tensioning element for controlling the sliding of the tensioning block (523).

3. The pipe and rod outer wall polishing and grinding equipment according to claim 1, characterized in that, A linkage shaft (316) is rotatably connected between two adjacent conveyor platforms (2). Both ends of the linkage shaft (316) are provided with linkage gears on the same axis. The end of the drive shaft (311) is provided with a drive gear corresponding to the linkage gear. The drive gear and the corresponding linkage gear are connected by a synchronous toothed belt (317).

4. The pipe and rod outer wall polishing and grinding equipment according to claim 1, characterized in that, The adjusting component includes an adjusting screw (323) that is threadedly connected to the driven block (32). The driven block (32) is provided with an adjusting threaded hole that is threadedly engaged with the adjusting screw (323). When the adjusting screw (323) rotates, the driven block (32) slides under the action of the threaded transmission. The conveying table (2) and the worktable (1) are both provided with adjusting slide rails (324). The driven block (32) is provided with an adjusting groove that is engaged with the adjusting slide rails (324).

5. The pipe and rod outer wall polishing and grinding equipment according to claim 1, characterized in that, The conveyor (2) and the worktable (1) are also provided with a limiting bracket (7). A limiting rod (71) is rotatably connected to the limiting bracket (7). A limiting wheel (72) is rotatably connected to one end of the limiting rod (71) facing the active table. After the limiting rod (71) rotates, the limiting wheel (72) is in contact with the end face of the workpiece away from the active table. The limiting bracket (7) is provided with a limiting component for controlling the rotation of the limiting rod (71).

6. The pipe and rod outer wall polishing and grinding equipment according to claim 1, characterized in that, The workbench (1) is provided with a cover (13), and the two ends of the cover (13) are provided with material passage holes (131) for workpieces to pass through. The cover (13) is rotatably connected with an inspection door (132).

7. The pipe and rod outer wall polishing and grinding equipment according to claim 1, characterized in that, Both sides of the processing plate (52) are provided with sensors (526) for detecting the position of the workpiece, and the processing plate (52) is provided with a mounting bracket (527) for supporting the sensors (526).

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