Polishing machine for polishing special-shaped bent pipe

Abstract

The invention discloses a polishing machine for polishing a special-shaped bent pipe, and particularly relates to the technical field of polishing equipment, the polishing machine comprises a workbench, and a polishing mechanism is arranged on the outer side of the workbench; the polishing mechanism comprises a sleeve, one side of the sleeve is fixedly connected with the rear side of the workbench, a support is slidably connected into the sleeve, one side of the support is in threaded connection with a screw, a first motor is installed in the support, the output end of the first motor is fixedly connected with a rotating rod, the outer side of the rotating rod is fixedly connected with an auxiliary roller, and a first guide block is arranged on one side of the auxiliary roller. By arranging the polishing mechanism, the special-shaped bent pipe is further polished, meanwhile, the position and the angle of the shell can be adjusted according to the bending angle of the special-shaped bent pipe, the special-shaped bent pipes with different angles can be polished, meanwhile, the positions of a plurality of polishing rollers can be adjusted, and the polishing efficiency is improved. The special-shaped bent pipes with different thicknesses can be fully polished, and the polishing efficiency and accuracy of the special-shaped bent pipes are kept.

Description

Technical Field

[0001] The invention relates to the technical field of polishing equipment, and more specifically to a polishing machine for polishing special-shaped bent pipes. Background Art

[0002] The pipe bending polishing machine adopts a planetary operation mode, which drives the two grinding belts to rotate in a circle and drives the grinding belts to rotate themselves. It can grind and polish the outer surfaces of various round pipes and round rods with bending angles (such as L-shaped socket wrenches, plum-shaped hexagonal wrenches, special-shaped bolt cutter handles, etc.), and the grinding belt can be flexibly selected according to the different materials and polishing requirements of the workpiece.

[0003] In order to adjust the grinding gap, the existing polishing machine needs to manually adjust the position of the wheel group that drives the grinding belt to operate, so as to change the grinding gap between the two grinding belts. However, in this way, each time a part with a different diameter is replaced, the polishing machine's guard needs to be opened, and then the position of the roller is manually adjusted. After the adjustment is completed, the guard needs to be reinstalled. The adjustment process is cumbersome and time-consuming.

[0004] After searching, a Chinese patent with announcement number CN118404456B discloses a polishing machine for polishing special-shaped bent pipes. This invention has a tension roller set on the turntable, which can slide along the radial direction of the turntable away from the center of the turntable under the action of centrifugal force. When the turntable is driven to rotate at high speed, a centrifugal force is generated. Under the action of the centrifugal force, the tension roller slides along the slide groove away from the center of the turntable, and then the polishing belt is tensioned from the inside. At this time, under the action of the tensioning force, the polishing belt is tightly attached to the outer surface of the part. The smaller the diameter of the part, the greater the distance the tension roller moves outward, and the larger the diameter of the part, the smaller the distance the tension roller moves outward, so that the polishing belt can adapt to the diameter of the part.

[0005] However, when the above-mentioned polishing machine is actually used, since the outer shape of the special-shaped pipe is curved, when the special-shaped pipe is polished, the special-shaped curved pipes of different thicknesses will not be in close contact with the polishing machine, resulting in a certain reduction in the degree of completeness of the polishing of the special-shaped curved pipe. At the same time, during the operation of the polishing machine, too much dust will appear and escape into the air, causing a certain impact on the health of the operator. Summary of the invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a polishing machine for polishing special-shaped bent pipes to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions: A polishing machine for polishing special-shaped bent pipes comprises a workbench, wherein a polishing mechanism is arranged outside the workbench; the polishing mechanism comprises a sleeve, wherein one side of the sleeve is fixedly connected to the rear side of the workbench, a bracket is slidably connected inside the sleeve, a screw is threadedly connected to one side of the bracket, a first motor is installed inside the bracket, a rotating rod is fixedly connected to the output end of the first motor, an auxiliary roller is fixedly connected to the outer side of the rotating rod, a first guide block is arranged on one side of the auxiliary roller, the first guide block is rotatably connected to the outer side of the rotating rod, a telescopic rod is fixedly connected to one end of the rotating rod, and the bottom of the telescopic rod is fixedly connected to the upper surface of the workbench; a positioning frame is fixedly connected to the rear side of the workbench, a second motor is installed inside the positioning frame, a driving roller is fixedly connected to the output end of the second motor, two driven rollers are rotatably connected inside the workbench, a grinding belt is transmission-connected to the outer sides of the driving roller and the two driven rollers, a second guide block is slidably connected inside the workbench, a positioning plate is fixedly connected to one side of the second guide block, a threaded block is fixedly connected to the second guide block, a bolt is threadedly connected to one side of the threaded block, a clamping block is rotatably connected to the outer side of the bolt, and a retaining ring is fixedly connected to one side of the bolt.

[0008] By adopting the above technical solution: according to the front end height of the special-shaped bent pipe, the position of the second guide block is adjusted, so that the second guide block can drive the shell to align with the height of the front end of the special-shaped bent pipe, and at the same time, by pushing the bracket, the first motor drives the auxiliary roller to support the bottom of the special-shaped bent pipe, so that the top of the special-shaped bent pipe can fit closely with the outside of the grinding belt, which is convenient for preliminary polishing of the special-shaped bent pipe.

[0009] As a further description of the above technical solution: the second guide block is rotatably connected to a connecting column inside, a turntable is fixedly connected to the outside of the connecting column, two reinforcing bolts are threadedly connected to the inside of the turntable, a shell is fixedly connected to the outside of the reinforcing bolts, a third motor is fixedly connected to the top of the shell, a driving gear is fixedly connected to the output end of the third motor, a driven gear is meshed with the bottom side of the driving gear, the outer side of the driven gear is rotatably connected to the inside of the shell, the inside of the shell is rotatably connected to an inner shell with a tooth groove arranged on the outer side, a plurality of guide rods are fixedly connected to the inside of the inner shell, a spring is arranged on the outer side of the guide rod, a slider is fixedly connected to one end of the spring, and the inner wall of the slider is slidably connected to the outer side of the guide rod.

[0010] By adopting the above technical solution: rotating the outer shell to make the connecting column rotate inside the second guide block, and then fixing the rotation angle of the turntable by two reinforcing bolts, and at the same time, the third motor drives the driving gear and the driven gear to engage with the tooth grooves set on the outside of the inner shell, so that the inner shell can rotate stably inside the outer shell.

[0011] As a further description of the above technical solution: two inclined push blocks are fixedly connected to the outer side of the slider, a grinding roller is rotatably connected to the outer side of the slider, the inclined push blocks are symmetrically arranged on both sides of the grinding roller, the inner shell is rotatably connected to a limiting frame, and a plurality of guide teeth are provided on the outer side of the limiting frame.

[0012] By adopting the above technical solution: the rotating limit frame can push the multiple inclined push blocks inside the inner shell, so that the grinding rollers can move in opposite directions inside the inner shell, so that the multiple grinding rollers can polish the special-shaped bent pipes of different thicknesses more closely.

[0013] As a further description of the above technical solution: a protective dust removal mechanism is arranged at the bottom of the workbench, and the protective dust removal mechanism includes a bottom frame, the top of the bottom frame is fixedly connected to the lower surface of the workbench, a filter plate is inserted into the inside of the bottom frame, a fan is arranged on one side of the bottom frame, and the output end of the fan is connected to a pipe, and one end of the pipe is fixedly connected to one side of the bottom frame.

[0014] By adopting the above technical solution: the fan creates a low-pressure environment inside the bottom frame through the pipeline, so that the dust generated by polishing above the workbench is sucked into the inside of the bottom frame, preventing the dust from escaping into the air.

[0015] As a further description of the above technical solution: a baffle is hinged on the upper surface of the workbench, a clamping ring is fixedly connected to the outer side of the baffle, an insert block is fixedly connected to the top of the workbench, and a pop-up block is slidably connected inside the insert block.

[0016] By adopting the above technical solution: the front side of the workbench is timely shielded to prevent impurities from flying out and causing harm to the operator during the polishing process.

[0017] Technical effects and advantages of the present invention: 1. By setting a polishing mechanism, compared with the prior art, the special-shaped bent pipe can be further polished. At the same time, the position and angle of the shell can be adjusted according to the bending angle of the special-shaped bent pipe, so that the special-shaped bent pipes with different angles can be polished. At the same time, the positions of multiple grinding rollers can be adjusted, so that the special-shaped bent pipes with different thicknesses can be fully polished, and the polishing efficiency and accuracy of the special-shaped bent pipes can be maintained; 2. By setting up a protective dust removal mechanism, compared with the existing technology, the baffle is used to shield the polishing process of the special-shaped elbow to prevent foreign objects from flying out during the polishing process of the special-shaped elbow and causing harm to the operator. The fan and the bottom frame can collect the dust generated during the polishing process to prevent the dust from escaping and affecting the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the right structure of the present invention.

[0020] Figure 3 It is a schematic diagram of the rear structure of the present invention.

[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the shell of the present invention.

[0022] Figure 5 It is a partial schematic diagram of the connection between the second guide block and the bolt of the present invention.

[0023] Figure 6 It is a schematic diagram of the cross-sectional structure of the inner shell of the present invention.

[0024] Figure 7 It is a schematic diagram of the outer structure of the limiting frame of the present invention.

[0025] Figure 8 It is a partial schematic diagram of the connection between the bottom frame and the filter plate of the present invention.

[0026] Fig. 9 It is a partial schematic diagram of the connection between the bracket and the first motor of the present invention.

[0027] Fig.10 For the present invention Figure 6 A is an enlarged schematic diagram.

[0028] The accompanying drawings are marked as follows: 1, workbench; 2, sleeve; 3, bracket; 4, screw; 5, first motor; 6, rotating rod; 7, auxiliary roller; 8, first guide block; 9, telescopic rod; 10, positioning frame; 11, second motor; 12, active roller; 13, driven roller; 14, grinding belt; 15, second guide block; 16, positioning plate; 17, threaded block; 18, bolt; 19, clamping block; 20, retaining ring; 21, connecting column; 22 , turntable; 23, reinforcement bolts; 24, outer shell; 25, third motor; 26, driving gear; 27, driven gear; 28, inner shell; 29, guide rod; 30, spring; 31, slider; 32, tilt push block; 33, grinding roller; 34, limit frame; 35, guide gear; 36, bottom frame; 37, filter plate; 38, fan; 39, pipeline; 40, baffle; 41, retaining ring; 42, plug block; 43, pop-up block. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] The embodiment of the present application discloses a polishing machine for polishing special-shaped bent pipes, including a workbench 1, and a polishing mechanism is arranged on the outer side of the workbench 1; the polishing mechanism includes a sleeve 2, one side of the sleeve 2 is fixedly connected to the rear side of the workbench 1, a bracket 3 is slidably connected inside the sleeve 2, a screw 4 is threadedly connected to one side of the bracket 3, a first motor 5 is installed inside the bracket 3, a rotating rod 6 is fixedly connected to the output end of the first motor 5, an auxiliary roller 7 is fixedly connected to the outer side of the rotating rod 6, a first guide block 8 is arranged on one side of the auxiliary roller 7, the first guide block 8 is rotatably connected to the outer side of the rotating rod 6, a telescopic rod 9 is fixedly connected to one end of the rotating rod 6, and the bottom of the telescopic rod 9 is fixedly connected to the upper surface of the workbench 1; a positioning frame 10 is fixedly connected to the rear side of the workbench 1, a second motor 11 is installed inside the positioning frame 10, an active roller 12 is fixedly connected to the output end of the second motor 11, two driven rollers 13 are rotatably connected inside the workbench 1, and the active roller 12 and The two driven rollers 13 are connected to the grinding belt 14 on the outside through transmission, and the workbench 1 is slidably connected to the inside of the second guide block 15. A positioning plate 16 is fixedly connected to one side of the second guide block 15. A threaded block 17 is fixedly connected to the inside of the second guide block 15. A bolt 18 is threadedly connected to one side of the threaded block 17. A clamping block 19 is rotatably connected to the outside of the bolt 18. A retaining ring 20 is fixedly connected to one side of the bolt 18. The second motor 11 drives the active roller 12 to rotate. At the same time, the active roller 12 and the grinding belts 14 on the outside of the two driven rollers 13 rotate under the transmission of the active roller 12. At the same time, according to the thickness of the special-shaped bent pipe, the bracket 3 is pushed so that the first motor 5 drives the auxiliary roller 7 and the first guide block 8 to move upward to support the bottom of the special-shaped bent pipe. Then, the bolt 18 is rotated to adjust the second guide block 15 and the clamping block 19 so that the second guide block 15 can move to a position with the same height as the front end of the special-shaped bent pipe.

[0031] Reference Figure 4As shown in the positioning frame 10, the second guide block 15 is internally rotatably connected to a connecting column 21, the outer side of the connecting column 21 is fixedly connected to a turntable 22, the inner side of the turntable 22 is threadedly connected to two reinforcing bolts 23, the outer side of the reinforcing bolts 23 is fixedly connected to a housing 24, the top of the housing 24 is fixedly connected to a third motor 25, the output end of the third motor 25 is fixedly connected to a driving gear 26, the bottom side of the driving gear 26 is meshed with a driven gear 27, the outer side of the driven gear 27 is rotatably connected to the inner side of the housing 24, the inner side of the housing 24 is rotatably connected to an inner housing 28 with a tooth groove on the outer side, and the inner housing 28 is internally A plurality of guide rods 29 are fixedly connected, a spring 30 is arranged on the outside of the guide rod 29, one end of the spring 30 is fixedly connected to a slider 31, the inner wall of the slider 31 is slidably connected to the outside of the guide rod 29, the outer shell 24 is rotated through the connecting column 21 and the turntable 22 so that the rotation angle of the outer shell 24 can be adjusted, and the position of the turntable 22 is fixed by two reinforcing bolts 23, and then the third motor 25 drives the driving gear 26 and the driven gear 27 to transmit the inner shell 28, so that the inner shell 28 can be quickly rotated inside the outer shell 24, thereby polishing the outer side of the special-shaped bent pipe.

[0032] Referring to the positioning frame 10 and Figure 7 As shown, two inclined push blocks 32 are fixedly connected to the outer side of the slider 31, and a grinding roller 33 is rotatably connected to the outer side of the slider 31. The inclined push blocks 32 are symmetrically arranged on both sides of the grinding roller 33. A limiting frame 34 is rotatably connected to the inside of the inner shell 28. A plurality of guide teeth 35 are provided on the outer side of the limiting frame 34. The screws on one side of the limiting frame 34 are pushed so that the limiting frame 34 can squeeze the plurality of inclined push blocks 32 inside the inner shell 28, so that the plurality of inclined push blocks 32 can drive the grinding roller 33 to move in opposite directions inside the inner shell 28. The plurality of grinding rollers 33 fit the outer walls of special-shaped curved pipes of different diameters, so as to facilitate a relatively close polishing.

[0033] Reference Figure 8 As shown, a protective dust removal mechanism is provided at the bottom of the workbench 1, and the protective dust removal mechanism includes a bottom frame 36. The top of the bottom frame 36 is fixedly connected to the lower surface of the workbench 1, and a filter plate 37 is inserted inside the bottom frame 36. A fan 38 is provided on one side of the bottom frame 36. The output end of the fan 38 is connected to a pipe 39, and one end of the pipe 39 is fixedly connected to one side of the bottom frame 36. The fan 38 exhausts the interior of the bottom frame 36 through the pipe 39, so that the interior of the bottom frame 36 maintains air circulation, so that the dust generated during the polishing process can be sucked into the interior of the bottom frame 36 and collected by the filter plate 37.

[0034] Reference Figure 1As shown, a baffle 40 is hinged on the upper surface of the workbench 1, a retaining ring 41 is fixedly connected to the outer side of the baffle 40, an insert block 42 is fixedly connected to the top of the workbench 1, and a pop-up block 43 is slidably connected inside the insert block 42. Rotating the baffle 40 can shield the front side of the workbench 1 to prevent impurities flying out during polishing from causing harm to the operator.

[0035] Working principle of the present invention: when grinding the special-shaped bent pipe, first place one end of the special-shaped bent pipe on the top of the auxiliary roller 7, so that the top of the special-shaped bent pipe contacts the grinding belt 14, and then the second motor 11 drives the active roller 12 to rotate, so that the grinding belt 14 rotates rapidly under the guidance of the active roller 12 and the two driven rollers 13, so that the outer side of the special-shaped bent pipe is ground by the grinding belt 14 to a certain extent. After the operator pushes the special-shaped bent pipe to be ground by the grinding belt 14, according to the direction of the front end of the special-shaped bent pipe, first turn the bolt 18 to separate one end of the bolt 18 from the threaded block 17. When the clamping block 19 is separated from the second guide block 15, the position of the second guide block 15 inside the workbench 1 can be adjusted. After the housing 24 moves to a height corresponding to the front end of the special-shaped bent pipe, the turntable 22 is placed on the second guide block 15. The block 15 is rotated to the inside so that the middle hole area of ​​the outer shell 24 is convenient for the front end of the special-shaped curved pipe to pass through. Then, the positions of the turntable 22 and the positioning plate 16 are fixed by two reinforcing bolts 23, and then the screws on one side of the limit frame 34 are pushed so that the guide teeth 35 inside the limit frame 34 can push the corresponding inclined push block 32 to drive the grinding roller 33 to move inward, so that the multiple grinding rollers 33 can fit the outer side of the special-shaped curved pipe, and the screws on the outer side of the limit frame 34 are turned so that the limit frame 34 can be fixed inside the inner shell 28. Then, the third motor 25 is started to drive the driving gear 26 and the driven gear 27 to transmit, so that the bottom of the driven gear 27 is meshed with the outer side of the inner shell 28, and the inner shell 28 drives the multiple grinding rollers 33 to quickly polish the outer side of the special-shaped curved pipe. During the polishing of the special-shaped bent pipe, the baffle 40 is first pushed upward to connect the clamping ring 41 with the plug block 42, and then the position of the clamping ring 41 is limited by the pop-up block 43. After that, the fan 38 generates suction inside the bottom frame 36 through the pipe 39. The dust generated during polishing enters the inside of the filter plate 37 through the workbench 1, and the dust is collected by the filter plate 37. Finally, the filter plate 37 can be pulled out from the inside of the bottom frame 36 to facilitate cleaning of the dust inside the filter plate 37.

[0036] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art and will not be described here.

[0037] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A polishing machine for polishing a special-shaped bent pipe, comprising a workbench (1), characterized in that: A polishing mechanism is arranged on the outside of the workbench (1); The polishing mechanism comprises a sleeve (2), one side of the sleeve (2) is fixedly connected to the rear side of the workbench (1), a bracket (3) is slidably connected inside the sleeve (2), a screw (4) is threadedly connected to one side of the bracket (3), a first motor (5) is installed inside the bracket (3), an output end of the first motor (5) is fixedly connected to a rotating rod (6), an outer side of the rotating rod (6) is fixedly connected to an auxiliary roller (7), a first guide block (8) is arranged on one side of the auxiliary roller (7), the interior of the first guide block (8) is rotatably connected to the outer side of the rotating rod (6), one end of the rotating rod (6) is fixedly connected to a telescopic rod (9), and the bottom of the telescopic rod (9) is fixedly connected to the upper surface of the workbench (1); A positioning frame (10) is fixedly connected to the rear side of the workbench (1), a second motor (11) is installed inside the positioning frame (10), an output end of the second motor (11) is fixedly connected to a driving roller (12), two driven rollers (13) are rotatably connected inside the workbench (1), a grinding belt (14) is transmission-connected to the outer sides of the driving roller (12) and the two driven rollers (13), a second guide block (15) is slidably connected inside the workbench (1), a positioning plate (16) is fixedly connected to one side of the second guide block (15), a threaded block (17) is fixedly connected to the inside of the second guide block (15), and a bolt (18) is threadedly connected to one side of the threaded block (17).

2. The polishing machine for polishing special-shaped bent pipes according to claim 1, characterized in that: A clamping block (19) is rotatably connected to the outer side of the bolt (18), and a retaining ring (20) is fixedly connected to one side of the bolt (18).

3. The polishing machine for polishing special-shaped bent pipes according to claim 1, characterized in that: A connecting column (21) is rotatably connected inside the second guide block (15), a rotating disk (22) is fixedly connected outside the connecting column (21), and two reinforcing bolts (23) are threadedly connected inside the rotating disk (22).

4. The polishing machine for polishing special-shaped bent pipes according to claim 3, characterized in that: The outer side of the reinforcing bolt (23) is fixedly connected to a housing (24), the top of the housing (24) is fixedly connected to a third motor (25), the output end of the third motor (25) is fixedly connected to a driving gear (26), the bottom side of the driving gear (26) is meshed with a driven gear (27), and the outer side of the driven gear (27) is rotatably connected to the inside of the housing (24).

5. The polishing machine for polishing special-shaped bent pipes according to claim 4, characterized in that: An inner shell (28) having teeth and grooves arranged on the outer side is rotatably connected inside the outer shell (24), a plurality of guide rods (29) are fixedly connected inside the inner shell (28), a spring (30) is arranged on the outer side of the guide rod (29), one end of the spring (30) is fixedly connected to a slider (31), and the inner wall of the slider (31) is slidably connected to the outer side of the guide rod (29).

6. The polishing machine for polishing special-shaped bent pipes according to claim 5, characterized in that: Two inclined push blocks (32) are fixedly connected to the outside of the slider (31), a grinding roller (33) is rotatably connected to the outside of the slider (31), and the inclined push blocks (32) are symmetrically arranged on both sides of the grinding roller (33).

7. The polishing machine for polishing special-shaped bent pipes according to claim 5, characterized in that: The inner shell (28) is rotatably connected to a limit frame (34), and a plurality of guide teeth (35) are provided on the outer side of the limit frame (34).

8. The polishing machine for polishing special-shaped bent pipes according to claim 1, characterized in that: A protective dust removal mechanism is provided at the bottom of the workbench (1), the protective dust removal mechanism comprising a bottom frame (36), the top of the bottom frame (36) being fixedly connected to the lower surface of the workbench (1), a filter plate (37) being inserted into the interior of the bottom frame (36), a fan (38) being provided on one side of the bottom frame (36), an output end of the fan (38) being connected to a pipe (39), one end of the pipe (39) being fixedly connected to one side of the bottom frame (36).

9. The polishing machine for polishing special-shaped bent pipes according to claim 1, characterized in that: A baffle (40) is hingedly connected to the upper surface of the workbench (1), a clamping ring (41) is fixedly connected to the outer side of the baffle (40), an insert block (42) is fixedly connected to the top of the workbench (1), and a pop-up block (43) is slidably connected to the interior of the insert block (42).

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