CN218984145U - Inside and outside grinding device of muffler inner tube - Google Patents

Abstract

The utility model relates to the technical field of automobile muffler polishing, in particular to an inner and outer polishing device for a muffler inner tube, which comprises a machine body, wherein a workbench is arranged on one side of the machine body, a polishing mechanism is arranged on the other side of the machine body, a transverse guide rail is further arranged on the workbench, a rotating mechanism is arranged on the transverse guide rail and is in sliding connection with the transverse guide rail, a movable cylinder is arranged below the transverse guide rail, a piston rod of the movable cylinder is connected with the rotating mechanism, the rotating mechanism is provided with a servo motor and a transmission shaft, one end of the transmission shaft is provided with a clamp, the other end of the transmission shaft is connected with an output end of the servo motor, the polishing mechanism comprises an outer circle polishing machine and an inner circle polishing machine, the outer circle polishing machine is in contact with the outer wall of the muffler inner tube, and the inner circle polishing machine is in contact with the inner wall of the muffler inner tube. The utility model can automatically polish the inner pipe notch of the silencer without manual post-processing, reduces the production cost, and has good polishing quality and high speed.

Description

Inside and outside grinding device of muffler inner tube

Technical Field

The utility model relates to the technical field of automobile muffler polishing, in particular to a polishing device for the inside and outside of an inner pipe of a muffler.

Background

Automotive silencers are components used to reduce noise generated when an engine of a motor vehicle is in operation, for improving comfort of occupants of the vehicle. The inner pipe is used as a part of the silencer, the required precision is higher, no pipe material capable of being directly processed exists in the market, the punching, rolling and welding processes are generally completed by adopting sheet materials, the cutting edge of the circular pipe is inconvenient to install, and the inner pipe of the silencer after production can be installed by polishing the cutting edge.

Manual polishing needs handheld polishing equipment to polish along the edges of the notch, workers with insufficient experience can polish the notch in place easily at the corner of the notch, manual polishing efficiency is low, time consumption is long, and cost is high. The existing polishing equipment can only perform single rotation polishing or mobile polishing when polishing the inner pipe of the silencer, the limitation of the notch position of the circular pipe cannot meet the requirement of polishing along the notch edge, and when polishing equipment is used for polishing, the inner wall and the outer wall are required to be separately polished and cannot be simultaneously polished, the polishing efficiency is low, and when polishing equipment is used for polishing, the inner wall and the outer wall are also capable of being simultaneously polished, but the relative positions of the inner wall polishing equipment and the outer wall polishing equipment are fixed and cannot be adjusted, and only the inner pipe of the silencer with single specification can be polished, and the polishing quality is poor.

Disclosure of Invention

The utility model provides an inner and outer polishing device for an inner pipe of a silencer, which can automatically polish the edge of a cut, and polish the inner wall and the outer wall of the cut in the polishing process simultaneously, and has the advantages of high polishing speed, high efficiency and good quality.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an inside and outside grinding device of muffler inner tube, includes the organism, one side is equipped with the workstation on the organism, and the opposite side is equipped with grinding machanism, still be equipped with transverse guide on the workstation, be equipped with on the transverse guide and remove the base, be equipped with rotary mechanism on the removal base, remove base and transverse guide sliding connection, transverse guide has the removal cylinder down, the piston rod of removal cylinder is connected with removing the base, rotary mechanism is equipped with servo motor and transmission shaft, transmission shaft one end is equipped with anchor clamps, and the other end is connected with the servo motor output, anchor clamps are used for pressing from both sides tight fixed muffler inner tube, grinding machanism includes excircle polisher and interior polisher, excircle polisher and the outer wall contact of muffler inner tube, interior polisher and the inner wall contact of muffler inner tube, still be equipped with the display on the organism.

Further, the rotating mechanism is further provided with a movable base, a bearing seat supporting transmission shaft is arranged on the movable base, a coupler is arranged at one end of the transmission shaft and is connected with an output shaft of the servo motor, an angle sensor is arranged on the movable base, and a piston rod of the movable cylinder is connected with the movable base.

Further, the clamp comprises a clamp seat plate, a clamp cylinder and a clamp arm, wherein the clamp seat plate is fixedly connected with the transmission shaft, a positioning block is arranged on the clamp seat plate, the clamp cylinder is fixedly arranged below the clamp seat plate, a piston rod of the clamp cylinder extends out along the vertical direction and is connected with one end of the clamp arm, a clamp block is arranged at the other end of the clamp arm, and the clamp seat plate is rotationally connected with the clamp arm.

Further, the polishing mechanism is provided with a mounting seat, a first mounting plate and a second mounting plate which are perpendicular to the mounting seat are arranged on the mounting seat, a lifting cylinder I is arranged on one side surface of the second mounting plate, a first vertical guide rail and a first moving plate are arranged on the other side surface of the second mounting plate, the first moving plate is in sliding connection with the first vertical guide rail, the inner circle polishing machine is detachably arranged on the first moving plate, a piston rod of the lifting cylinder I is fixedly connected with the first moving plate, the inner circle polishing machine comprises a motor, and an inner circle polishing head is further arranged on an output shaft of the motor;

the side that second mounting panel is relative with first mounting panel is equipped with second vertical guide rail and second movable plate, the excircle polisher can dismantle and be connected in the second movable plate, the another side of second mounting panel is equipped with lift cylinder two, lift cylinder two's piston rod and second mounting panel fixed connection, be equipped with the grinding wheel on the excircle polisher, the grinding wheel is corresponding with interior round polishing head position.

Further, the polishing mechanism is also provided with a PLC controller, and the PLC controller is electrically connected with the movable cylinder, the servo motor, the lifting cylinder I, the lifting cylinder II and the screen respectively.

Further, the movable base is provided with a protective cover, the transmission shaft is positioned in the protective cover, the workbench is also provided with two symmetrically arranged buffers, the buffers are positioned on two sides of the rotating mechanism, and the movable base is provided with a baffle.

Further, the machine body is also provided with a dust collecting device, the dust collecting device is positioned between the workbench and the polishing mechanism, and the dust collecting device comprises a dust collecting funnel and a dust collecting box.

The utility model has the beneficial effects that:

1. the muffler inner tube is clamped and fixed on the clamp, the lifting cylinder drives the outer circle polisher and the inner circle polisher to contact with the inner wall and the outer wall of the muffler inner tube, the muffler inner tube is driven to move back and forth along the horizontal direction by the moving cylinder, and the inner tube is adjusted to rotate forward and reverse through the cooperation of the servo motor and the sensor, so that the polishing mechanism polishes along the tangential track of the notch, automatic rotation repeated polishing is realized, manual participation is not needed, the polishing speed is high, the polishing process can simultaneously polish the inner wall and the outer wall of the notch, the production efficiency is effectively improved, and the processing cost is reduced.

2. The outer circle polisher and the inner circle polisher can keep the pressing force in the polishing process through the lifting cylinder I and the lifting cylinder II, the outer circle polisher and the inner circle polisher are in close contact with the inner surface of the inner tube of the silencer, polishing quality is improved, the relative positions of the outer circle polisher and the inner circle polisher are adjusted through the lifting cylinder I and the lifting cylinder II, machining polishing of incisions of the inner tube of the silencer with different specifications is achieved, in the polishing process, the inner circle polishing head and the grinding wheel can press the wall of the inner tube of the silencer, polishing is fully conducted, and polishing quality is improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model.

Fig. 2 is a schematic perspective view of the rotary mechanism.

Fig. 3 is a front view of the rotary mechanism.

Fig. 4 is a schematic structural diagram of a moving mechanism and a rotating mechanism according to the present utility model.

Fig. 5 is a schematic perspective view of the polishing mechanism of the present utility model.

Fig. 6 is a schematic perspective view of a polishing mechanism according to the present utility model.

Fig. 7 is a schematic elevational view of the polishing mechanism of the present utility model.

Fig. 8 is a schematic view of an outer circle polisher and a first mounting plate structure.

FIG. 9 is a schematic view of an inner grinder and a second mounting plate structure.

FIG. 10 is a schematic view of the structure of an inner tube of the muffler and a motion trace thereof.

In the figure: 1-a machine body; 2-a workbench; 3-mounting seats; 4-a clamp seat plate; 5-muffler inner pipe; 11-a display; 12-a dust collection hopper; 13-a dust box; 14-a buffer; 20-a transverse guide rail; 21-moving the base; 22-bearing seats; 23-servo motor; a 24-coupling; 25-a transmission shaft; 26-an angle sensor; 27-a moving cylinder; 28- -a baffle; 29-a protective cover; 31-a first mounting plate; 32-a second mounting plate; 41-positioning blocks; 42-clamping arms; 43-a clamp cylinder; 44-clamping blocks; 51-incision; 311-lifting cylinder I; 312-a first vertical rail; 313 a first moving plate; 314-an inner circle polisher; 315-an inner circle polishing head; 321-a lifting cylinder II; 322-a second vertical rail; 323-a second movable plate; 324-an outer circle polisher; 325-grinding wheel.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Please refer to fig. 1, 2, a polishing device for inner and outer of inner tube of silencer and its processing method, comprising a machine body 1, one side of the machine body 1 is provided with a workbench 2, the other side is provided with a polishing mechanism, the workbench 2 is also provided with a transverse guide 20, the transverse guide 20 is provided with a movable base 21, the movable base 21 is provided with a rotating mechanism, the movable base 21 is slidably connected with the transverse guide 20, the lower part of the transverse guide 20 is provided with a movable cylinder 27, a piston rod of the movable cylinder 27 is connected with the movable base 21, the rotating mechanism is provided with a servo motor 23 and a transmission shaft 25, the movable base 21 is provided with a bearing seat 22 for supporting the transmission shaft 25, one end of the transmission shaft 25 is connected with the output end of the servo motor 23, the other end is provided with a clamp, the clamp is used for clamping and fixing the inner tube 5 of silencer, and the polishing mechanism comprises an outer circle polisher 324 and an inner circle polisher 314.

Specifically, the fixture comprises a fixture seat board 4, a fixture air cylinder 43 and a clamping arm 42, wherein the fixture seat board 4 is fixedly connected with the transmission shaft 25, a positioning block 41 is arranged on the fixture seat board 4, the fixture air cylinder 43 is fixedly arranged below the fixture seat board 4, a piston rod of the fixture air cylinder 43 extends out along the vertical direction and is connected with one end of the clamping arm 42, a clamping block 44 is arranged at the other end of the clamping arm 42, and the fixture seat board 4 is rotationally connected with the clamping arm 42.

Through placing muffler inner tube 5 on locating piece 41 preliminary location, back anchor clamps cylinder 43 starts, and its piston rod extends, and arm lock 42 rotates around the tie point with anchor clamps bedplate 4, and arm lock 42 drives the clamp splice 44 of the other end and presss from both sides the fixed muffler inner tube 5, and the fixed mode is simple, easy operation, and presss from both sides the fixed muffler inner tube 5 firm reliable, does not take place to rock and remove in the polishing process, is favorable to polishing efficiency and quality.

Referring to fig. 2 and 3, one end of a transmission shaft 25 is provided with a coupling 24 and is connected with an output shaft of a servo motor 23, the other end of the transmission shaft is fixedly connected with a clamp seat board 4, the servo motor 23 is started, the clamp and the muffler inner pipe 5 are driven to synchronously rotate by the transmission shaft 25, an angle sensor 26 is arranged on the mobile base 21, the rotation angle of the transmission shaft 25 is detected, and the rotation angle of the muffler inner pipe 5 around the central axis after clamping and fixing is precisely controlled by matching the servo motor 23 and the angle sensor 26.

As shown in fig. 5, 6 and 8, the polishing mechanism is provided with a mounting seat 3, a first mounting plate 31 and a second mounting plate 32 perpendicular to the mounting seat are arranged on the mounting seat, a lifting cylinder one 311 is arranged on one side surface of the first mounting plate 31, a first vertical guide rail 312 and a first moving plate 313 are arranged on the other side surface of the first mounting plate, the first moving plate 313 is slidably connected with the first vertical guide rail 312, an inner circle polishing machine 314 is detachably arranged on the first moving plate 313, a piston rod of the lifting cylinder one 311 is fixedly connected with the first moving plate 313, the inner circle polishing machine 314 comprises a motor, an inner circle polishing head 315 is further arranged on an output shaft of the motor, and the inner circle polishing head 315 is used for polishing the inner surface of the inner tube 5 of the silencer. The diameter of the inner polishing head 315 is smaller than that of the inner pipe 5 of the silencer, and when the inner pipe 5 of the silencer is clamped and fixed by the clamp, the position and the initial position of the inner polishing head 315 are positioned on the same axis.

As shown in fig. 9, a second vertical guide rail 322 and a second moving plate 323 are disposed on the side of the second mounting plate 32 opposite to the first mounting plate 31, the outer circle grinding machine 324 is obliquely mounted on the second moving plate 323, a grinding wheel 325 is disposed on the outer circle grinding machine 324, and the grinding wheel 325 corresponds to the inner circle grinding head 315 in position. The grinding wheel 325 of the outer circle grinding machine 324 forms a certain angle with the inner circle grinding head 315, so that the burr at the notch 51 can be effectively ground, the grinding quality is improved, the lifting cylinder II 321 is arranged on the other side surface of the second mounting plate 32, and a piston rod of the lifting cylinder II 321 is fixedly connected with the second mounting plate 32.

Referring to fig. 7, in operation, the first lifting cylinder 311 piston rod extends to drive the first moving plate 313 to move along the first vertical guide rail 312, the inner polishing head 314 rises, the inner polishing head 315 contacts with the inner surface of the inner pipe 5 of the silencer, and meanwhile, the second lifting cylinder 321 piston rod contracts to drive the second moving plate 323 to move along the second vertical guide rail 322, the outer polishing head 324 descends, the grinding wheel 325 contacts with the outer surface of the inner pipe 5 of the silencer, and when polishing, the inner polishing head 315 and the grinding wheel 325 of the outer polishing head 324 can press the pipe wall of the inner pipe 5 of the silencer under the action of the first lifting cylinder 311 and the second lifting cylinder 321, so that certain pressing force is maintained, constant force polishing is achieved, polishing quality is improved, and polished quality is consistent.

In addition, the relative positions between the inner circle polishing head 315 and the grinding wheel 325 of the outer circle polishing machine 324 can be adjusted through the first lifting cylinder 311 and the second lifting cylinder 321, so that the inner silencer pipes with different wall thicknesses can be polished, and the inner silencer pipes with different specifications can be polished.

The machine body is also provided with a display, and the polishing mechanism is also provided with a PLC (not shown in the figure), and the PLC is respectively and electrically connected with the movable air cylinder 27, the servo motor 23, the lifting air cylinder I311, the lifting air cylinder II 321 and the display 11. Its PLC controller is through detecting angle sensor 26 signal, and accurate control muffler inner tube 5's rotation angle guarantees the precision of polishing, and through PLC controller control servo motor 23 and removal cylinder 27 start sequence, makes excircle polisher 324 and interior circle polisher 314 can be accurate to doing tangent line orbit round of polishing along incision 51 department, need not artifical the participation, improves the efficiency of polishing, and its number of turns of polishing can be according to the demand free adjustment of polishing, and the staff of being convenient for learn the processing progress of display 11.

Specifically, the motion track of the inner pipe 5 of the silencer is controlled by setting the program of the PLC, so that elliptical, triangular and circular cuts or the ports of the inner pipe 5 of the silencer are polished.

As shown in fig. 4, a protective cover 29 is disposed on the movable base 21, the transmission shaft 25 is disposed in the protective cover 29, two symmetrically disposed buffers 14 are disposed on the workbench 2, the buffers 14 are disposed on two sides of the rotating mechanism, a baffle 28 is disposed on the movable base 21, the position of the baffle 28 corresponds to that of the buffer 14, the buffer 14 serves to position the maximum limit position of pushing out the movable base 21, and meanwhile, shaking of the muffler inner tube 5 caused by hard collision stop of the movable base 21 is avoided.

In addition, still be equipped with dust collection device on the organism 1, dust collection device includes dust collection funnel 12 and dust collection box 13, collects the iron fillings and the dust that produce of polishing, and dust collection box 13 adopts insert installation or demountable installation, is convenient for take out dust collection box 13 at any time to iron fillings and dust treatment.

The working principle of the utility model is as follows: referring to fig. 2 and 10, the muffler inner pipe 5 is positioned by the positioning block 41, the piston rod of the clamp cylinder 43 extends, the clamping block 44 clamps and fixes the muffler inner pipe 5 on the clamp, the moving cylinder 27 is started, the moving base 21 and the clamp move rightwards, and the notch 51 on the muffler inner pipe 5 moves to the polishing mechanism;

lifting cylinder one 311 is started, inner circle polisher 314 moves upwards until inner circle polisher head 315 contacts the inner surface of muffler inner pipe, lifting cylinder two 321 is started, and outer circle polisher 324 moves downwards until grinding wheel 325 contacts the outer surface of muffler inner pipe 5;

the servo motor 23 is started for the first time, the clamp and the inner silencer pipe 5 are driven to rotate forwards for a certain angle, the piston rod of the movable cylinder 27 extends, the inner silencer pipe 5 moves rightwards until the buffer 14 abuts against the baffle 28, the servo motor 23 is started for the second time, the clamp and the inner silencer pipe 5 rotate reversely for a certain angle (the first rotation angle and the second rotation angle of the servo motor 2 are equal), the piston rod of the movable cylinder 27 is retracted, the inner silencer pipe 5 moves leftwards, and the initial polishing position is returned to finish polishing of the notch 51;

after polishing is completed, the lifting cylinder I311 and the lifting cylinder II 321 are started, the inner circular polishing head 314 and the sand wheel piece 325 are separated from the inner pipe 5 of the silencer and return to the initial position, the piston rod of the moving cylinder 27 is contracted, the inner pipe 5 of the silencer is withdrawn from the polishing mechanism, the piston rod of the clamp cylinder 43 is contracted, the clamping block 44 is loosened, the inner pipe 5 of the silencer is taken down, and the steps are repeated to polish the next workpiece.

The utility model has the beneficial effects that: the muffler inner tube is clamped and fixed on the clamp, the lifting cylinder drives the outer circle polisher and the inner circle polisher to contact with the inner wall and the outer wall of the muffler inner tube, the muffler inner tube is driven to move back and forth along the horizontal direction by the moving cylinder, and the inner tube is adjusted to rotate forward and reverse through the cooperation of the servo motor and the sensor, so that the polishing mechanism polishes along the tangential track of the notch, automatic rotation repeated polishing is realized, manual participation is not needed, polishing can be simultaneously performed on the inner wall and the outer wall of the notch in the polishing process, the working efficiency is effectively improved, the labor cost is reduced, and the processing cost is reduced.

The outer circle polisher and the inner circle polisher can keep the pressing force in the polishing process through the lifting cylinder I and the lifting cylinder II, the outer circle polisher and the inner circle polisher are in close contact with the inner surface of the inner pipe of the silencer, polishing quality is improved, the heights of the outer circle polisher and the inner circle polisher can be adjusted through the lifting cylinder I and the lifting cylinder II, and the machining polishing of incisions of the inner pipe of the silencer with different specifications is achieved.

The utility model is not limited to the above embodiments, and based on the technical solution disclosed in the utility model, a person skilled in the art may make some substitutions and modifications to some technical features thereof without creative effort according to the technical content disclosed, and all the substitutions and modifications are within the protection scope of the utility model.

Claims (7)

1. The utility model provides an inside and outside grinding device of muffler inner tube, includes organism (1), its characterized in that: one side is equipped with workstation (2) on organism (1), and the opposite side is equipped with grinding machanism, still be equipped with transverse guide (20) on workstation (2), be equipped with on transverse guide (20) and remove base (21), be equipped with rotary mechanism on removing base (21), remove base (21) and transverse guide (20) sliding connection, transverse guide (20) have down and remove cylinder (27), the piston rod of removing cylinder (27) is connected with remove base (21), rotary mechanism is equipped with servo motor (23) and transmission shaft (25), transmission shaft (25) one end is equipped with anchor clamps, and the other end is connected with servo motor (23) output, anchor clamps are used for pressing from both sides tight fixed muffler inner tube (5), grinding machanism includes outer circle polisher (324) and interior circle polisher (314), outer wall contact of outer circle polisher (324) and muffler inner tube (5), interior circle polisher (314) and the inner wall contact of muffler inner tube (5), still be equipped with display (11) on organism (1).

2. The muffler inner pipe inner and outer grinding device according to claim 1, wherein: the rotating mechanism is further provided with a movable base (21), a bearing seat (22) is arranged on the movable base (21) to support a transmission shaft (25), a coupler (24) is arranged at one end of the transmission shaft (25) and is connected with an output shaft of a servo motor (23), an angle sensor (26) is arranged on the movable base (21), and a piston rod of a movable cylinder (27) is connected with the movable base (21).

3. The muffler inner pipe inner and outer grinding device according to claim 1, wherein: the clamp comprises a clamp seat plate (4), a clamp cylinder (43) and a clamp arm (42), wherein the clamp seat plate (4) is fixedly connected with a transmission shaft (25), a positioning block (41) is arranged on the clamp seat plate (4), the clamp cylinder (43) is fixedly arranged below the clamp seat plate (4), a piston rod of the clamp cylinder (43) extends out along the vertical direction and is connected with one end of the clamp arm (42), a clamp block (44) is arranged at the other end of the clamp arm (42), and the clamp seat plate (4) is rotationally connected with the clamp arm (42).

4. The muffler inner pipe inner and outer grinding device according to claim 1, wherein: the polishing mechanism is provided with a mounting seat (3), a first mounting plate (31) and a second mounting plate (32) which are perpendicular to the mounting seat are arranged on the mounting seat, a lifting cylinder I (311) is arranged on one side surface of the first mounting plate (31), a first vertical guide rail (312) and a first movable plate (313) are arranged on the other side surface of the first mounting plate, the first movable plate (313) is in sliding connection with the first vertical guide rail (312), an inner polishing machine (314) is detachably arranged on the first movable plate (313), a piston rod of the lifting cylinder I (311) is fixedly connected with the first movable plate (313), the inner polishing machine (314) comprises a motor, and an inner polishing head (315) is further arranged on an output shaft of the motor;

the side that second mounting panel (32) are relative with first mounting panel (31) is equipped with second vertical guide rail (322) and second movable plate (323), outer circle polisher (324) can dismantle and connect in second movable plate (323), the other side of second mounting panel (32) is equipped with lift cylinder two (321), the piston rod and the second mounting panel (32) fixed connection of lift cylinder two (321), be equipped with grinding wheel (325) on outer circle polisher (324), grinding wheel (325) are corresponding with interior round polisher head (315) position.

5. The muffler inner pipe inner and outer grinding device as defined in claim 4, wherein: the polishing mechanism is also provided with a PLC controller, and the PLC controller is electrically connected with the movable air cylinder (27), the servo motor (23), the lifting air cylinder I (311), the lifting air cylinder II (321) and the display (11) respectively.

6. The muffler inner pipe inner and outer grinding device as claimed in claim 2, wherein: be equipped with safety cover (29) on moving base (21), transmission shaft (25) are located safety cover (29), still be equipped with buffer (14) that two symmetries set up on workstation (2), buffer (14) are located rotary mechanism both sides, be equipped with baffle (28) on moving base (21).

7. The muffler inner pipe inner and outer grinding device according to claim 1, wherein: the machine body (1) is also provided with a dust collecting device, and the dust collecting device comprises a dust collecting funnel (12) and a dust collecting box (13).

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