CN113829147A

CN113829147A - Inner wall grinding device is used in production of new energy automobile exhaust duct

Info

Publication number: CN113829147A
Application number: CN202110959129.5A
Authority: CN
Inventors: 杜仕民
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2021-12-24

Abstract

The invention relates to the technical field of new energy automobile devices and accessory manufacturing equipment, and discloses an inner wall polishing device for new energy automobile exhaust pipeline production. This inner wall grinding device is used in new energy automobile exhaust duct production, when needs polish the exhaust duct inner wall, thereby drive the piece of polishing alright with the realization through the pivot, simultaneously, arc fixed plate can intermittent type nature's striking carriage release lever in its pivoted, the carriage release lever is under the effect of striking power, and then can make the piece of polishing take place to remove under the effect of branch, thereby reach when the piece of polishing is polished to the pipeline inner wall rotation, can remove along the pipeline inner wall, with this efficiency of polishing that has strengthened the device when polishing.

Description

Inner wall grinding device is used in production of new energy automobile exhaust duct

Technical Field

The invention relates to the technical field of new energy automobile devices and accessory manufacturing equipment, in particular to an inner wall polishing device for production of a new energy automobile exhaust pipeline.

Background

The exhaust pipe is part of an engine exhaust system which mainly comprises an exhaust manifold, an exhaust pipe and a silencer, and a three-way catalyst which is generally used for controlling the emission of pollutants of the engine is also arranged in the exhaust system, and the exhaust pipe generally comprises a front exhaust pipe and a rear exhaust pipe.

No matter which kind of exhaust duct, its effect in order to guarantee to exhaust when producing, its inner wall must keep smooth, consequently, need polish the smoothness in order to guarantee its inner wall to the inner wall when producing exhaust duct, and current grinding device is when using, and the piece of polishing can produce a large amount of frictional heat, and thermal production can make the waste residue of polishing glue at the surface of piece of polishing, if not clear up these waste residues, must influence the device effect of polishing to the pipe inner wall.

Disclosure of Invention

The invention aims to provide an inner wall polishing device for production of a new energy automobile exhaust pipeline, and aims to solve the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: an inner wall polishing device for production of a new energy automobile exhaust pipeline comprises a base, wherein a supporting plate is fixedly connected to the outer wall of the left side of the top of the base, the supporting plate is arranged in a hollow way, a supporting rod is fixedly connected with the top middle shaft of the base, one end of the supporting rod far away from the base is fixedly connected with an arc-shaped clamp, the left side of the supporting plate is provided with a rotating plate, a motor is arranged at one end of the rotating plate far away from the supporting plate, the output end of the motor is fixedly connected with the middle shaft of the outer wall of the rotating plate, the end of the rotating plate far away from the motor is provided with a plurality of fixed rods, the end of each fixed rod far away from the rotating plate penetrates through the supporting plate and extends to the outer side, the extending parts of the fixed rods are fixedly connected with connecting plates, one end of the connecting plate, which is far away from the fixing rod, is fixedly connected with a plurality of rotating shafts, and the outer surfaces of the rotating shafts are sleeved with a plurality of grinding blocks.

Preferably, the connecting rod is fixedly connected to a middle shaft at one end, far away from the supporting plate, of the connecting plate, the connecting rod is arranged in a hollow mode, a plurality of first sliding grooves are formed in the connecting rod, a plurality of rotating rings are arranged on the first sliding grooves in a rotating mode respectively, an arc cleaning sheet is fixedly connected to the outer surface of each rotating ring, one end, far away from the rotating rings, of each arc cleaning sheet is arranged in contact with the outer surfaces of the plurality of polishing blocks respectively, a gas cavity is formed in the connecting rod, and a plurality of gas holes are formed in the outer surface of the connecting rod.

Preferably, the inside of connecting rod slides and is provided with piston push rod, piston push rod passes through the right side inner wall fixed connection of spring and connecting rod, piston push rod keeps away from the inside that the one end of spring runs through the backup pad, the run-through portion fixedly connected with a plurality of arc catch bar of piston push rod, a plurality of piston push rod keeps away from the one end fixedly connected with elastic plate of piston push rod, a plurality of arc catch bar respectively with the axis department fixed connection of a plurality of elastic plate, a plurality of the left side of elastic plate and the inner wall fixed connection of backup pad, a plurality of the one end fixedly connected with removal straight-bar that the backup pad was kept away from to the elastic plate.

Preferably, a plurality of the inside of pivot is drawn empty and is set up, a plurality of the inside of pivot is provided with the carriage release lever, a plurality of the extension of carriage release lever pass through the spring respectively with the right side inner wall fixed connection of a plurality of pivot, a plurality of the one end that the spring was kept away from to the carriage release lever runs through the outer wall of connection pad and extends to inside.

Preferably, a plurality of second spout has been seted up respectively in the pivot, a plurality of the inside slip of second spout is provided with a plurality of branch, a plurality of the upper and lower both sides outer wall of branch respectively with the outer wall of movable rod and the outer wall fixed connection of sanding block.

Preferably, a plurality of the grinding block is hollowed, a plurality of moving grooves are formed in the outer wall of the grinding block, a plurality of heat-sensitive balls are arranged in the grinding block, an arc-shaped elastic rod is fixedly connected to the outer surfaces of every two heat-sensitive balls, a plurality of cleaning cones are fixedly connected to the middle shafts of the arc-shaped elastic rods, and one ends, far away from the arc-shaped elastic rods, of the cleaning cones are arranged in the moving grooves.

Preferably, an arc-shaped friction rod is fixedly connected to the outer surface of the heat-sensitive ball, one end, far away from the heat-sensitive ball, of the arc-shaped friction rod penetrates through the side wall of the polishing block and extends into the next polishing block, and the extending part of the arc-shaped friction rod is fixedly connected with the outer surface of the heat-sensitive ball.

Preferably, the connecting disc is internally hollowed, a plurality of arc-shaped fixing plates are arranged inside the connecting disc and hinged to the outer surface of the connecting rod, the arc-shaped fixing plates are fixedly connected with the inner wall of the connecting plate through elastic pieces, and the center shafts of the arc-shaped fixing plates are fixedly connected with one ends, far away from the elastic plates, of the moving rods.

Compared with the prior art, the invention has the beneficial effects that:

(1) this inner wall grinding device is used in new energy automobile exhaust duct production, when needs polish the exhaust duct inner wall, thereby drive the sanding block alright with the realization through the pivot, simultaneously, arc fixed plate can intermittent type nature's striking carriage release lever in its pivoted, the carriage release lever is under the effect of striking power, and then can make the sanding block take place to remove under the effect of branch, thereby reach when sanding block is polished to the pipeline inner wall rotation, can remove along the pipeline inner wall, the efficiency of polishing when polishing of the device has been strengthened to this.

(2) This inner wall grinding device is used in new energy automobile exhaust duct production, the effect of arc fixed plate and carriage release lever also can make arc fixed plate take place to rotate under effort and the effect of reaction force, and then compel to make piston push rod remove the straight-bar, take place to remove under the effect of elastic plate and arc catch bar, and then extrude the gas of gas intracavity portion, gas after the extrusion can be through gas hole eduction gear and then can utilize this air current, can clear up absorbent waste residue on the piece of polishing, the waste residue on the piece of polishing has been prevented from influencing the polishing to the pipeline inner wall.

(3) This inner wall grinding device is used in new energy automobile exhaust duct production, the polishing block is when polishing the pipeline inner wall, the arc clearance piece can carry out the friction along the outer wall of polishing block and remove, and then there is the effect of a clearance for the surface of polishing block, remove about the polishing block simultaneously, can also make the arc clearance piece have a yawing force when the clearance, and then prevented that the arc clearance piece from causing the injury to the surface of polishing block when the clearance, and then the use of influencing the device.

(4) This inner wall grinding device is used in new energy automobile exhaust duct production, the piece of polishing when rubbing with the pipeline inner wall and polish, can produce the frictional heat, the production of frictional heat can make the temperature sensing ball take place to warp, the temperature sensing ball after the deformation can make the clearance awl move out the piece of polishing under the effect of arc elastic rod, and then be convenient for the clearance awl remove along the pipeline inner wall to reached the clearance to the pipeline inner wall, it has too much waste residue of polishing to prevent to adsorb on the pipeline inner wall.

(5) This inner wall grinding device is used in new energy automobile exhaust duct production, shifting out of clearance awl can strike arc clearance piece, can drive the rotation circle under the effect of striking force and take place slight rotation, and then be convenient for arc clearance piece and sanding block rotate to opposite direction to make things convenient for the clearance of arc clearance piece to sanding block surface under this effect, strengthened its clearance effect.

(6) This inner wall grinding device is used in new energy automobile exhaust duct production, the deformation of heat-sensitive ball can extrude arc friction lever simultaneously, and then make arc friction lever take place deformation under the effect of extrusion force, can make arc friction lever rotate along the inner wall of pipeline under the effect of deformation, and then increased the clearance area of the device with the pipeline, strengthened the clearance effect to the pipeline.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the overall structure of the support plate of the present invention;

FIG. 3 is a cross-sectional view of the overall construction of the sanding block of the present invention;

FIG. 4 is an enlarged view of A of FIG. 2 according to the present invention;

FIG. 5 is an enlarged view of B of FIG. 2 according to the present invention;

FIG. 6 is a schematic view of the overall structure of a heat-sensitive ball according to the present invention;

fig. 7 is a partial structure diagram of the inside of the connecting plate.

In the figure: 1. a base; 11. a support plate; 12. a support bar; 13. an arc-shaped clamp; 2. rotating the plate; 3. a motor; 4. fixing the rod; 41. a connecting plate; 411. an arc-shaped fixing plate; 42. a rotating shaft; 421. a travel bar; 5. Grinding blocks; 6. a connecting rod; 61. a first chute; 62. rotating the ring; 63. an arc-shaped cleaning sheet; 64. a gas chamber; 65. a gas hole; 7. a piston push rod; 71. an arc-shaped push rod; 72. an elastic plate; 73. moving the straight rod; 8. a second chute; 81. a strut; 9. a moving groove; 91. a heat-sensitive ball; 92. an arc-shaped elastic rod; 93. cleaning the cone; 10. an arc-shaped friction rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: the utility model provides an inner wall grinding device is used in production of new energy automobile exhaust duct, including base 1, the purpose that sets up like this is in order to facilitate the whole device of support, fixedly connected with backup pad 11 on the top left side outer wall of base 1, the purpose that sets up like this is in order to facilitate fixed backup pad 11, the inside of backup pad 11 is hollowed out and is set up like this, the purpose that sets up like this is in order to facilitate the setting up of various mechanisms, top axis department fixedly connected with bracing piece 12 of base 1, the purpose that sets up like this is in order to facilitate fixed bracing piece 12, the one end fixedly connected with arc clamp 13 that bracing piece 12 keeps away from base 1, the purpose that sets up like this is in order to facilitate fixed arc clamp 13, the left side of backup pad 11 is provided with rotor plate 2, the purpose that this kind of setting is in order to facilitate fixed rotor plate 2, the one end that rotor plate 2 keeps away from backup pad 11 is provided with motor 3, the purpose that sets up like this is in order to facilitate the provision of external power, the output end of the motor 3 is fixedly connected with the middle shaft of the outer wall of the rotating plate 2, the arrangement is that in order to facilitate the motor 3 to drive the rotating plate 2 to rotate, one end of the rotating plate 2 far away from the motor 3 is provided with a plurality of fixed rods 4, the purpose of this is to facilitate the arrangement of the fixing rod 4, the end of the fixing rod 4 far from the rotating plate 2 penetrates the supporting plate 11 and extends to the outside, the purpose of this is to facilitate the rotation of the fixing bars 4, a plurality of connecting plates 41 are fixedly connected to the extension of the fixing bars 4, the purpose of this arrangement is to facilitate the fixing of the connecting plate 41, the end of the connecting plate 41 remote from the fixing rod 4 is fixedly connected with a plurality of rotating shafts 42, the purpose of this setting is in order to facilitate fixed pivot 42, and the surface cover of a plurality of pivot 42 is equipped with a plurality of sanding block 5, and the purpose of this setting is in order to facilitate setting up sanding block 5.

Preferably, in this embodiment, in order to facilitate cleaning of waste residues adsorbed on the outer surfaces of the polishing blocks 5, the connecting rod 6 is fixedly connected to a center shaft at one end of the connecting plate 41, which is away from the supporting plate 11, so as to facilitate fixing of the connecting rod 6, the connecting rod 6 is hollowed out, so as to facilitate setting of various mechanisms, the connecting rod 6 is provided with a plurality of first sliding grooves 61, so as to facilitate setting of the rotating rings 62, the plurality of first sliding grooves 61 are respectively and rotatably provided with the rotating rings 62, so as to facilitate setting of the rotating rings 62, the outer surfaces of the plurality of rotating rings 62 are fixedly connected with the arc cleaning sheets 63, so as to facilitate setting of the arc cleaning sheets 63, one ends of the plurality of arc cleaning sheets 63, which are away from the rotating rings 62, are respectively and contact with the outer surfaces of the plurality of polishing blocks 5, the purpose of this is in order to facilitate cleaning of the outer surface of the sanding block 5, and the connecting rod 6 is provided with a gas cavity 64 inside, and the purpose of this is in order to facilitate the gas cavity 64, and the outer surface of the connecting rod 6 is provided with a plurality of gas holes 65, and the purpose of this is in order to facilitate the gas to come in and go out.

Preferably, in this embodiment, in order to facilitate the extrusion of the gas inside the gas chamber 64, the piston push rod 7 is slidably disposed inside the connecting rod 6, and is disposed to facilitate the movement of the piston push rod 7, the piston push rod 7 is fixedly connected to the right inner wall of the connecting rod 6 through a spring, and is disposed to facilitate the quick return of the piston push rod 7, one end of the piston push rod 7, which is far away from the spring, penetrates through the inside of the supporting plate 11, and is disposed to facilitate the fixing of the spring, a plurality of arc push rods 71 are fixedly connected to a penetrating portion of the piston push rod 7, and is disposed to facilitate the arrangement of the arc push rods 71, one end of the plurality of arc push rods 71, which is far away from the piston push rod 7, is fixedly connected to an elastic plate 72, and is disposed to facilitate the arrangement of the elastic plate 72, and the plurality of arc push rods 71 are respectively fixedly connected to the central axes of the plurality of elastic plates 72, the left sides of the elastic plates 72 are fixedly connected with the inner wall of the supporting plate 11, the purpose of setting is to fix the elastic plates 72 conveniently, one ends, far away from the supporting plate 11, of the elastic plates 72 are fixedly connected with moving rods 73, and the purpose of setting is to move the straight rods 73 conveniently.

Preferably, in this embodiment, in order to facilitate the movement of pushing the moving rod 421, the inside of the plurality of rotating shafts 42 is hollowed, so as to facilitate the setting of the moving rod 421, the moving rod 421 is disposed inside the plurality of rotating shafts 42, the extending portions of the plurality of moving rods 421 are respectively fixedly connected to the right inner walls of the plurality of rotating shafts 42 through springs, and one ends of the plurality of moving rods 73, which are far away from the springs, penetrate through the outer wall of the connecting disc 41 and extend to the inside.

Preferably, in this embodiment, in order to facilitate driving the sanding block 5 to slide, second spout 8 has been seted up on a plurality of pivot 42 respectively, the purpose that sets up like this is for facilitating setting up branch 81, the inside slip of a plurality of second spout 8 is provided with a plurality of branch 81, the purpose that sets up like this is for facilitating setting up branch 81, the upper and lower both sides outer wall of a plurality of branch 81 respectively with the outer wall of carriage release lever 73 and the outer wall fixed connection of sanding block 5, the purpose that sets up like this is for facilitating the removal of sanding block 5.

Preferably, in this embodiment, in order to clean the inner wall of the pipeline by using the change of the internal temperature when the grinding block 5 rubs, the plurality of grinding blocks 5 are arranged in a hollow manner, the purpose of the arrangement is to facilitate the arrangement of the thermal sensitive balls 91, the outer walls of the plurality of grinding blocks 5 are provided with a plurality of moving grooves 9, the purpose of the arrangement is to facilitate the arrangement of the cleaning cones 93, the inside of the grinding block 5 is provided with a plurality of thermal sensitive balls 91, the purpose of the arrangement is to arrange the thermal sensitive balls 91, the outer surfaces of every two thermal sensitive balls 91 are fixedly connected with an arc-shaped elastic rod 92, the purpose of the arrangement is to provide the arc-shaped elastic rod 92, the central axis of the plurality of arc-shaped elastic rods 92 is fixedly connected with a cleaning cone 93, the purpose of the arrangement is to facilitate the arrangement of the cleaning cone 93, one end of each cleaning cone 93, which is far away from the arc-shaped elastic rod 92, is arranged inside the moving groove 9, this is provided to facilitate movement of the cleaning cone 93.

Preferably, in the present embodiment, in order to facilitate enhanced cleaning of the inner wall of the pipeline, an arc-shaped friction rod 10 is fixedly connected to the outer surface of the thermal ball 91, and is arranged to facilitate the arrangement of the arc-shaped friction rod 10, one end of the arc-shaped friction rod 10, which is far away from the thermal ball 91, penetrates through the side wall of the sanding block 5 and extends to the inside of the next sanding block 5, and an extension part of the arc-shaped friction rod 10 is fixedly connected to the outer surface of the thermal ball 91, and is arranged to facilitate the use of deformation of the thermal ball 91.

Preferably, in this embodiment, in order to facilitate the movement of the moving rod 73 by using the rotation thereof, the connecting plate 41 is hollowed, a plurality of arc-shaped fixing plates 411 are disposed inside the connecting plate 41, the arc-shaped fixing plates 411 are hinged to the outer surface of the connecting rod 6, the arc-shaped fixing plates 411 are fixedly connected to the inner wall of the connecting plate 41 through elastic pieces, and the middle shaft of the arc-shaped fixing plates 411 is fixedly connected to the end of the moving rod 421 far away from the elastic plate 72

The working principle is as follows:

when the inner wall of the device needs to be ground in production, the pipeline can be fixed on the device through the arc-shaped clamps 13, by starting the motor 3, the rotation of the motor 3 drives the rotation plate 2 to rotate, the rotation of the rotation plate 2 drives the fixing rod 4 to rotate, the rotation of the fixing rod 4 drives the connecting plate 41 to rotate, and further drives the rotating shaft 42 to rotate, the grinding block 5 is driven to rotate by the rotating shaft 42, so as to achieve the purpose of grinding the inner wall of the pipeline, and at the same time, the arc-shaped fixing plate 411 intermittently impacts the moving rod 421 while rotating, and under the impact force of the moving rod 421, and then the grinding block 5 can move under the action of the support rod 81, so that when the grinding block 5 rotates to grind the inner wall of the pipeline, can move along the inner wall of the pipeline, thereby enhancing the grinding efficiency of the device during grinding.

Meanwhile, the action of the arc-shaped fixing plate 411 and the moving rod 421 can also make the arc-shaped fixing plate 411 rotate under the action of the acting force and the reacting force, so as to force the piston push rod 7 to move under the action of the moving straight rod 73, the elastic plate 72 and the arc-shaped push rod 71, so as to extrude the gas in the gas cavity 64, the extruded gas can pass through the gas hole 65 discharge device and can utilize the gas flow, so that the waste residues adsorbed on the grinding block 5 can be cleaned, the influence of the waste residues on the grinding block 5 on the grinding of the inner wall of the pipeline is prevented, secondly, when the grinding block 5 grinds the inner wall of the pipeline, the arc-shaped cleaning sheet 63 can perform friction movement along the outer wall of the grinding block 5, so that the outer surface of the grinding block 5 can have a cleaning effect, and meanwhile, the grinding block 5 moves left and right, so that the arc-shaped cleaning sheet 63 can have a lateral force during cleaning, and further prevent the arc cleaning sheet 63 from damaging the outer surface of the grinding block 5 during cleaning, and further prevent the use of the device from being influenced.

Finally, when the grinding block 5 is in friction grinding with the inner wall of the pipeline, friction heat is generated, the heat-sensitive ball 91 is deformed due to the generation of the friction heat, the deformed heat-sensitive ball 91 can enable the cleaning cone 93 to move out of the grinding block 5 under the action of the arc-shaped elastic rod 92, so that the cleaning cone 93 can conveniently move along the inner wall of the pipeline, the cleaning of the inner wall of the pipeline is achieved, excessive grinding waste residues are prevented from being adsorbed on the inner wall of the pipeline, meanwhile, the moving-out of the cleaning cone 93 can impact the arc-shaped cleaning sheet 63, the rotating ring 62 can be driven to slightly rotate under the action of the impact force, the arc-shaped cleaning sheet 63 and the grinding block 5 can conveniently rotate in opposite directions, the cleaning of the outer surface of the grinding block 5 by the arc-shaped cleaning sheet 63 is facilitated under the action, the cleaning effect is enhanced, and then, the arc-shaped friction rod 10 can be simultaneously extruded by the deformation of the heat-sensitive ball 91, under the effect of extrusion pressure and then make arc friction lever 10 take place deformation, can make arc friction lever 10 rotate along the inner wall of pipeline under the effect of deformation, and then increased the device and the clearance area of pipeline, strengthened the clearance effect to the pipeline.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an inner wall grinding device is used in production of new energy automobile exhaust duct, includes base (1), its characterized in that: a supporting plate (11) is fixedly connected to the outer wall of the left side of the top of the base (1), the supporting plate (11) is arranged in a hollow mode, a supporting rod (12) is fixedly connected to the middle shaft of the top of the base (1), an arc-shaped clamp (13) is fixedly connected to one end, far away from the base (1), of the supporting rod (12), a rotating plate (2) is arranged on the left side of the supporting plate (11), a motor (3) is arranged at one end, far away from the supporting plate (11), of the rotating plate (2), the output end of the motor (3) is fixedly connected to the middle shaft of the outer wall of the rotating plate (2), a plurality of fixing rods (4) are arranged at one end, far away from the motor (3), of the fixing rods (4), penetrate through the supporting plate (11) and extend to the outer side, and a connecting plate (41) is fixedly connected to the extending portion of the plurality of the fixing rods (4), one end of the connecting plate (41) far away from the fixing rod (4) is fixedly connected with a plurality of rotating shafts (42), and the outer surface of each rotating shaft (42) is sleeved with a plurality of polishing blocks (5).

2. The inner wall grinding device for the production of the exhaust pipeline of the new energy automobile according to claim 1, characterized in that: the grinding wheel is characterized in that a connecting rod (6) is fixedly connected to a middle shaft at one end, far away from a supporting plate (11), of the connecting plate (41), the connecting rod (6) is arranged in a hollow mode, a plurality of first sliding grooves (61) are formed in the connecting rod (6), a plurality of rotating rings (62) are respectively arranged on the first sliding grooves (61) in a rotating mode, an arc cleaning sheet (63) is fixedly connected to the outer surfaces of the rotating rings (62), a plurality of arc cleaning sheets (63) are arranged at one ends, far away from the rotating rings (62), of the arc cleaning sheets (63) and are in contact with the outer surfaces of a plurality of grinding blocks (5), a gas cavity (64) is formed in the connecting rod (6), and a plurality of gas holes (65) are formed in the outer surface of the connecting rod (6).

3. The inner wall grinding device for the production of the exhaust pipeline of the new energy automobile according to claim 2, characterized in that: the piston push rod (7) is arranged in the connecting rod (6) in a sliding mode, the piston push rod (7) is fixedly connected with the inner wall of the right side of the connecting rod (6) through a spring, one end, far away from the spring, of the piston push rod (7) penetrates through the inside of the supporting plate (11), a plurality of arc-shaped push rods (71) are fixedly connected with the penetrating portions of the piston push rod (7), a plurality of elastic plates (72) are fixedly connected with the end, far away from the piston push rod (7), of the arc-shaped push rods (71), and the arc-shaped push rods (71) are fixedly connected with the center shafts of the elastic plates (72) respectively and are a plurality of the left sides of the elastic plates (72) are fixedly connected with the inner wall of the supporting plate (11), and a plurality of the elastic plates (72) are fixedly connected with movable straight rods (73).

4. The inner wall grinding device for the production of the exhaust pipeline of the new energy automobile according to claim 3, characterized in that: a plurality of the inside of pivot (42) is hollowed and is set up, a plurality of the inside of pivot (42) is provided with carriage release lever (421), a plurality of the extension of carriage release lever (421) pass through the spring respectively with the right side inner wall fixed connection of a plurality of pivot (42), a plurality of the one end that the spring was kept away from in carriage release lever (73) runs through the outer wall of connection pad (41) and extends to inside.

5. The inner wall grinding device for the production of the exhaust pipeline of the new energy automobile according to claim 4, is characterized in that: the rotating shaft (42) is provided with a plurality of second sliding grooves (8) respectively, the second sliding grooves (8) are provided with a plurality of supporting rods (81) in a sliding mode, and the supporting rods (81) are fixedly connected with the outer walls of the upper side and the lower side of the moving rod (421) and the outer walls of the polishing blocks (5) respectively.

6. The inner wall grinding device for the production of the exhaust pipeline of the new energy automobile according to claim 5, is characterized in that: the polishing device is characterized in that the polishing block (5) is hollowed, a plurality of moving grooves (9) are formed in the outer wall of the polishing block (5), a plurality of heat-sensitive balls (91) are arranged inside the polishing block (5), every two heat-sensitive balls (91) are fixedly connected with an arc-shaped elastic rod (92) and a plurality of cleaning cones (93) and a plurality of are fixedly connected to the middle shafts of the arc-shaped elastic rod (92), and one end, far away from the arc-shaped elastic rod (92), of each cleaning cone (93) is arranged inside each moving groove (9).

7. The inner wall grinding device for the production of the exhaust pipeline of the new energy automobile according to claim 6, is characterized in that: the outer fixed surface of temperature sensing ball (91) is connected with arc friction lever (10), the one end that temperature sensing ball (91) was kept away from in arc friction lever (10) runs through the lateral wall of sanding block (5) and extends and runs through to the inside of next sanding block (5), the extension of arc friction lever (10) is connected with the outer fixed surface of temperature sensing ball (91).

8. The inner wall grinding device for the production of the exhaust pipeline of the new energy automobile according to claim 7, is characterized in that: the inside of connection pad (41) is hollowed out and is set up, the inside of connection pad (41) is provided with a plurality of arc fixed plate (411), a plurality of arc fixed plate (411) is articulated with the surface of connecting rod (6), a plurality of arc fixed plate (411) passes through the inner wall fixed connection of shell fragment and connecting plate (41), a plurality of the one end fixed connection that elastic plate (72) was kept away from with carriage release lever (421) to the axis department of arc fixed plate (411).