CN112658813A

CN112658813A - Bush polishing equipment for new energy automobile

Info

Publication number: CN112658813A
Application number: CN202011520653.4A
Authority: CN
Inventors: 何英妹
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-04-16

Abstract

The invention relates to the technical field of new energy automobile accessory machining, and discloses bushing polishing machining equipment for a new energy automobile. This new energy automobile is with bush polishing processing equipment, along with the decline of drive pivot, the drive connecting axle upwards pushes up along perpendicular elongated slot, in the traction spring reset process, will pass the major axis through reaction force and outwards pass along the activity elongated slot, thereby make elastic connection layer compression deformation, release magnetorheological suspensions from the liquid outlet pipe in, make magnetorheological suspensions full of the bush inside, switch on external magnetic field, change the state of magnetorheological suspensions, drive the rotation of drive pivot through drive assembly simultaneously, realize polishing of bush inner wall, and easy and simple to handle, and effectively avoid the waste of magnetorheological suspensions, reduced clean area simultaneously, saved manufacturing cost.

Description

Bush polishing equipment for new energy automobile

Technical Field

The invention relates to the technical field of new energy automobile accessory processing, in particular to a bushing polishing processing device for a new energy automobile.

Background

In the moving parts, parts are abraded due to long-term friction, and the parts are required to be replaced when the clearance between the shaft and the hole is abraded to a certain degree, so that a designer selects a material with lower hardness and better wear resistance as a shaft sleeve or a bushing in the design, the abrasion of the shaft and a seat can be reduced, and when the shaft sleeve or the bushing is abraded to a certain degree to be replaced, the cost for replacing the shaft or the seat can be saved, and a bushing accessory is also required to be used in the production process of a new energy automobile.

Generally, a bushing and a seat are in interference fit, the bushing and a shaft are in clearance fit, when the bushing and the shaft are in interference fit, the inner wall of the bushing is generally required to be smooth, the inner wall of the bushing needs to be polished, magnetorheological fluid polishing is a novel polishing mode, the existing magnetorheological fluid polishing generally puts the whole workpiece into magnetorheological fluid for polishing, and for the bushing workpiece which only has the requirement on unidirectional smoothness, the polishing mode easily causes waste of the magnetorheological fluid and increases the cleaning difficulty, so that a new energy automobile bushing polishing device is provided to solve the problems.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a new energy automobile bushing polishing device which has the advantages of simplicity and easiness in operation, magnetorheological fluid material saving and production cost reduction, and solves the problems that the existing magnetorheological fluid polishing is generally to polish a whole workpiece by putting the workpiece into magnetorheological fluid, the polishing mode is easy to cause the waste of the magnetorheological fluid and the cleaning difficulty is increased for the bushing workpiece with only one-way smoothness requirement.

(II) technical scheme

In order to realize the purposes of simple and easy operation, saving magnetorheological fluid materials and reducing production cost, the invention provides the following technical scheme: a new energy automobile bushing polishing processing device comprises a driving rotating shaft and a pushing long shaft, wherein a vertical long groove is formed in the driving rotating shaft, a top pressure spring is fixedly connected to the inner top wall of the vertical long groove, the bottom of the top pressure spring is fixedly connected with a driving connecting shaft, a traction pull rope is fixedly connected to the outer side of the driving connecting shaft, uniformly distributed mounting support shafts are fixedly connected to the outer side of the driving rotating shaft, a movable long groove is formed in the mounting support shafts, a traction spring is movably connected to the inner side of the movable long groove, the outer side of the traction spring is fixedly connected with the pushing long shaft, an inner pushing plate is fixedly connected to the outer side of the pushing long shaft, an elastic connecting layer is fixedly connected to the outer side of the elastic connecting layer, an outer pushing plate is fixedly connected to the outer side of the inner pushing, the outer side of the outer pushing plate is fixedly connected with a top pressing block, the inner pushing plate and the outer pushing plate are both provided with penetrating grooves, and the bottom of the elastic connecting layer is fixedly connected with a liquid outlet pipeline.

Preferably, a connecting gap is formed in the driving connecting shaft, the inner side of the traction pull rope is fixedly connected to the inside of the connecting gap, and the traction pull rope is fixed to the outer side of the driving connecting shaft and moves along with the movement of the driving connecting shaft.

Preferably, the outer side of the traction pull rope is fixedly connected to the inner side of the traction spring, the pushing long shaft is movably connected to the inner part of the movable long groove, and the traction spring is pulled to move in the movable long groove through the traction pull rope.

Preferably, a filling cavity is formed among the outer side of the inner pushing plate, the inner side of the outer pushing plate and the inner side of the elastic connecting layer, magnetorheological fluid is filled in the filling cavity, and the magnetorheological fluid is extruded out of the filling cavity through the interaction of the inner pushing plate and the outer pushing plate.

Preferably, the negative plate is electrically connected to the piezoresistor, the piezoresistor is electrically connected to the external magnetic field, and the external magnetic field is switched on when the relative area between the positive plate and the negative plate reaches a certain value, namely the working voltage of the piezoresistor is reached.

Preferably, the outer side of the top pressing block is of an arc-shaped protruding structure corresponding to the inner wall of the bushing, the bottom of the pushing long shaft is of a convex hemispherical structure, and the top pressing block can rotate along the inner wall of the bushing when the rotating shaft is driven to rotate.

Preferably, the size of the through groove on the outer extrusion plate corresponds to the sectional area size of the positive plate, the size of the through groove on the inner extrusion plate corresponds to the sectional area size of the negative plate, and the positive plate and the negative plate are alternately inserted into the inner extrusion plate and the outer extrusion plate when the inner extrusion plate and the outer extrusion plate move mutually.

(III) advantageous effects

Compared with the prior art, the invention provides a bushing polishing device for a new energy automobile, which has the following beneficial effects:

1. this new energy automobile is with bush polishing processing equipment, along with the decline of drive pivot, the drive connecting axle upwards pushes up along perpendicular elongated slot, in the traction spring reset process, will pass the major axis through reaction force and outwards pass along the activity elongated slot, thereby make elastic connection layer compression deformation, release magnetorheological suspensions from the liquid outlet pipe in, make magnetorheological suspensions full of the bush inside, switch on external magnetic field, change the state of magnetorheological suspensions, drive the rotation of drive pivot through drive assembly simultaneously, realize polishing of bush inner wall, and easy and simple to handle, and effectively avoid the waste of magnetorheological suspensions, reduced clean area simultaneously, saved manufacturing cost.

2. This bush polishing processing equipment for new energy automobile, the back of accomplishing of polishing promotes the drive pivot upwards, and roof pressure spring resets, will drive the connecting axle and push down to pulling traction spring drives the interior extrusion board and resets, and the elastic connection layer resets, takes out magnetorheological suspensions to fill the chamber, takes off the bush, accomplishes the manufacturing procedure.

Drawings

FIG. 1 is a schematic top view of a driving shaft according to the present invention;

FIG. 2 is a schematic side view of a driving shaft according to the present invention;

FIG. 3 is a side view of an uncompressed elastic connecting layer of the present invention;

FIG. 4 is a side view of a compressed elastomeric tie layer of the present invention.

In the figure: 1. driving the rotating shaft; 2. a vertical elongated slot; 3. pressing the spring; 4. a drive connection shaft; 5. a pull cord; 6. mounting a fulcrum; 7. a movable long slot; 8. a traction spring; 9. pushing the long shaft; 10. internally pushing and extruding the plate; 11. an elastic tie layer; 12. pushing a plate outwards; 13. magnetorheological fluid; 14. a positive plate; 15. a negative plate; 16. pressing the block; 17. a through groove; 18. and (7) a liquid outlet pipeline.

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. 1-4, a new energy automobile bushing polishing processing device comprises a driving rotating shaft 1 and a pushing long shaft 9, wherein a vertical elongated slot 2 is formed inside the driving rotating shaft 1, a top pressure spring 3 is fixedly connected to the inner top wall of the vertical elongated slot 2, a driving connecting shaft 4 is fixedly connected to the bottom of the top pressure spring 3, a traction pulling rope 5 is fixedly connected to the outer side of the driving connecting shaft 4, a connecting gap is formed inside the driving connecting shaft 4, the inner side of the traction pulling rope 5 is fixedly connected to the inside of the connecting gap, the traction pulling rope 5 is fixed to the outer side of the driving connecting shaft 4 and moves along with the movement of the driving connecting shaft 4, uniformly distributed mounting fulcrum shafts 6 are fixedly connected to the outer side of the driving rotating shaft 1, a movable elongated slot 7 is formed inside the mounting fulcrum shafts 6, a, the outer side of the traction pull rope 5 is fixedly connected to the inner side of the traction spring 8, the pushing long shaft 9 is movably connected inside the movable long groove 7, and the traction spring 8 is pulled to move in the movable long groove 7 through the traction pull rope 5;

an inner pushing plate 10 is fixedly connected to the outer side of the pushing long shaft 9, an elastic connecting layer 11 is fixedly connected to the outer side of the inner pushing plate 10, an outer pushing plate 12 is fixedly connected to the outer side of the elastic connecting layer 11, magnetorheological fluid 13 is filled in the outer side of the inner pushing plate 10, a filling cavity is formed between the inner side of the inner pushing plate 10, the inner side of the outer pushing plate 12 and the inner side of the elastic connecting layer 11, magnetorheological fluid 13 is filled in the filling cavity, the magnetorheological fluid 13 is pushed out of the filling cavity through the interaction of the inner pushing plate 10 and the outer pushing plate 12, a positive plate 14 is fixedly connected to the outer side of the inner pushing plate 10, a negative plate 15 is fixedly connected to the inner side of the outer pushing plate 12, the negative plate 15 is electrically connected to a piezoresistor, the piezoresistor is electrically connected to an external magnetic field, when the relative area between the positive plate 14 and the negative plate 15 reaches a certain value, the outer side of the top pressing block 16 is of an arc-shaped protruding structure corresponding to the inner wall of the bushing, the bottom of the pushing long shaft 9 is of a convex hemispherical structure, when the driving rotating shaft 1 rotates, the top pressing block 16 can rotate along the inner wall of the bushing, penetrating grooves 17 are formed in the inner pushing plate 10 and the outer pushing plate 12, the size of the penetrating groove 17 in the outer pushing plate 12 corresponds to the sectional area size of the positive plate 14, the size of the penetrating groove 17 in the inner pushing plate 10 corresponds to the sectional area size of the negative plate 15, when the inner pushing plate 10 and the outer pushing plate 12 move mutually, the positive plate 14 and the negative plate 15 alternately penetrate through the inner pushing plate 10 and the outer pushing plate 12, and a liquid outlet pipeline 18 is fixedly connected to the bottom of the elastic connecting layer 11.

The working principle is as follows: the bottom of a bush to be processed is clamped in a sealing ring which is fixed on a horizontal operation table, the inner wall of the bush, the sealing ring and the horizontal operation table are in a sealing state, the top of a driving rotating shaft 1 is fixedly connected to a driving assembly, the driving rotating shaft 1 is lowered to the central position inside the bush through the driving assembly, a connecting shaft 4 is driven to be upwards jacked along a vertical long groove 2 along with the lowering of the driving rotating shaft 1, a jacking spring 3 is compressed, a traction pull rope 5 is released simultaneously, a traction spring 8 is released, a pushing long shaft 9 is pushed outwards along a movable long groove 7 through reaction force in the resetting process of the traction spring 8, a jacking block 16 is in contact with the inner wall of the bush, the pushing long shaft 9 continues to push an inner pushing plate 10 to be close to an outer pushing plate 12 after the jacking block 16 is in contact with the inner wall of the bush, and an elastic connecting layer 11 is, the corresponding pneumatic switch valve is fixedly connected inside the liquid outlet pipeline 18, the magnetorheological fluid 13 is pushed out from the liquid outlet pipeline 18, so that the magnetorheological fluid 13 is filled inside the bushing, at the moment, the positive plate 14 and the negative plate 15 are alternately inserted into the inner pushing plate 10 and the outer pushing plate 12, when the relative area between the positive plate 14 and the negative plate 15 reaches a certain value, namely the working voltage of the piezoresistor is reached, an external magnetic field is switched on, the state of the magnetorheological fluid 13 is changed, and meanwhile, the driving rotating shaft 1 is driven to rotate through the driving assembly, so that the inner wall of the bushing is polished;

after polishing, the driving rotating shaft 1 is lifted upwards, the jacking spring 3 is reset, the driving connecting shaft 4 is pressed downwards, the traction spring 8 is pulled to drive the inner pushing plate 10 to reset, the elastic connecting layer 11 is reset, the magnetorheological fluid 13 is pumped back to the filling cavity, the bushing is taken down, and the machining process is completed.

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 a bush polishing processing equipment for new energy automobile, includes drive pivot (1) and lapse major axis (9), its characterized in that: a vertical elongated slot (2) is formed in the driving rotating shaft (1), a top pressing spring (3) is fixedly connected to the inner top wall of the vertical elongated slot (2), a driving connecting shaft (4) is fixedly connected to the bottom of the top pressing spring (3), a traction pull rope (5) is fixedly connected to the outer side of the driving connecting shaft (4), uniformly distributed mounting support shafts (6) are fixedly connected to the outer side of the driving rotating shaft (1), a movable elongated slot (7) is formed in the mounting support shafts (6), a traction spring (8) is movably connected to the inner part of the movable elongated slot (7), a push long shaft (9) is fixedly connected to the outer side of the traction spring (8), an inner push plate (10) is fixedly connected to the outer side of the push plate (10), an elastic connecting layer (11) is fixedly connected to the outer side of the elastic connecting layer (11), and magnetorheological fluid (13) is filled in the outer side, the outer side of the inner extrusion plate (10) is fixedly connected with a positive plate (14), the inner side of the outer extrusion plate (12) is fixedly connected with a negative plate (15), the outer side of the outer extrusion plate (12) is fixedly connected with a top pressing block (16), penetrating grooves (17) are formed in the inner extrusion plate (10) and the outer extrusion plate (12), and a liquid outlet pipeline (18) is fixedly connected to the bottom of the elastic connecting layer (11).

2. The bushing polishing device for the new energy automobile according to claim 1, wherein: a connecting gap is formed in the driving connecting shaft (4), and the inner side of the traction pull rope (5) is fixedly connected to the inside of the connecting gap.

3. The bushing polishing device for the new energy automobile according to claim 1, wherein: the outer side of the traction pull rope (5) is fixedly connected to the inner side of a traction spring (8), and a pushing long shaft (9) is movably connected inside the movable long groove (7).

4. The bushing polishing device for the new energy automobile according to claim 1, wherein: and a filling cavity is formed among the outer side of the inner extrusion plate (10), the inner side of the outer extrusion plate (12) and the inner side of the elastic connecting layer (11), and magnetorheological fluid (13) is filled in the filling cavity.

5. The bushing polishing device for the new energy automobile according to claim 1, wherein: the negative plate (15) is electrically connected to a piezoresistor, and the piezoresistor is electrically connected to an external magnetic field.

6. The bushing polishing device for the new energy automobile according to claim 1, wherein: the outer side of the top pressing block (16) is of an arc-shaped convex structure corresponding to the inner wall of the lining, and the bottom of the pushing long shaft (9) is of an outward convex hemispherical structure.

7. The bushing polishing device for the new energy automobile according to claim 1, wherein: the size of the through groove (17) on the outer extrusion plate (12) corresponds to the sectional area size of the positive plate (14), and the size of the through groove (17) on the inner extrusion plate (10) corresponds to the sectional area size of the negative plate (15).