CN114589592A

CN114589592A - Grinding device for automobile body

Info

Publication number: CN114589592A
Application number: CN202210362783.2A
Authority: CN
Inventors: 杨晓心
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-08
Filing date: 2022-04-08
Publication date: 2022-06-07

Abstract

The invention relates to the technical field of automobile manufacturing, and discloses a grinding device for an automobile body, which comprises a handle shell, wherein an air valve is fixedly arranged in an inner cavity of the handle shell, one end of the air valve is fixedly provided with a vent pipe positioned in the inner cavity of the handle shell, and the outside of one end of the vent pipe is fixedly provided with a fixed connecting piece. According to the invention, the structure of the adjusting turntable, the first air cavity, the second air cavity and the like is arranged, so that the autonomous adjustment of the angle of the machine head of the grinding machine is achieved, the problem that the included angle is inaccurate due to the fact that the existing grinding device cannot perform autonomous auxiliary adjustment and is adjusted manually by manpower alone is effectively avoided, the phenomenon that the flywheel is generated due to the fact that the force is applied by hands is too heavy when the handle shell is held by hands is effectively avoided, and the machine head of the grinding machine can be effectively buffered under different use conditions, so that the safety guarantee for workers to grind all parts of the vehicle body in the grinding process is fully ensured.

Description

Grinding device for automobile body

Technical Field

The invention relates to the technical field of automobile manufacturing, in particular to a grinding device for an automobile body.

Background

When an existing automobile is used, scratches or scuffing often occur on the surface of an automobile body, if the surface of the automobile body needs to be repaired, grinding and polishing are needed, and the existing grinding and polishing steps generally include: the polishing machine comprises a whole vehicle cleaning device, a water sand paper polishing device, a coarse and fine grinding device, a polishing device and a manual glazing device, wherein the coarse and fine grinding device generally adopts a pneumatic grinding machine to work, the pneumatic grinding machine utilizes high-speed airflow to drive blades to rotate quickly, and then a transmission shaft mechanism is used for enabling a sand paper structure at the bottom end to rotate at a high speed, so that the grinding effect is realized, and the pneumatic grinding machine is widely applied to grinding work on surfaces of automobiles, plastics, tires and the like.

The existing pneumatic grinding machine is used for finely grinding the automobile body generally by being held by a worker, and the pneumatic grinding machine requires fifteen degrees between a grinding wheel and the automobile body in the using process, so that when the existing pneumatic grinding machine is used, the worker cannot accurately calculate the included angle degree, the included angle between the pneumatic grinding machine and the automobile body is too large or too small, the ground depth of the surface of the automobile body is too shallow or too deep, and the repairing effect of the surface of the automobile body is not good.

Disclosure of Invention

Aiming at the defects of the existing grinding device for the automobile body in the background technology in the using process, the invention provides the grinding device for the automobile body, which has the advantages of accurately determining the inclination angle of the grinding device, continuously maintaining the inclination angle, effectively relieving the excessive force application in hand holding, avoiding the flywheel phenomenon and solving the technical problems in the background technology.

The invention provides the following technical scheme: a grinding device of an automobile body comprises a handle shell, wherein an air valve is fixedly arranged in an inner cavity of the handle shell, an air pipe positioned in the inner cavity of the handle shell is fixedly arranged at one end of the air valve, a fixed connecting piece is fixedly arranged at the outer part of one end of the air pipe, an adjusting rotary disc is movably arranged in the middle of the fixed connecting piece, a first air cavity is arranged in the adjusting rotary disc, a second air cavity positioned at one side of the first air cavity is arranged in the adjusting rotary disc, a first air vent is arranged on the upper surface of the inner wall of the fixed connecting piece, a second air vent is arranged on the lower surface of the inner wall of the fixed connecting piece, a first transmission pipe is fixedly arranged at the outer part of the first air vent, a second transmission pipe is fixedly arranged at the outer part of the second air vent, and an air bag positioned at the outer wall of one end of the air pipe is fixedly arranged in a gap between the opposite ends of the first transmission pipe and the second transmission pipe, fixed connection spare's top movable mounting has the regulation pole, and adjusts the top fixed connection of pole and regulation carousel, one side movable mounting of fixed connection spare has the polisher aircraft nose, main blow vent has been seted up to the inside of polisher aircraft nose.

Preferably, the fixed connecting piece is in the shape of a circular ring, the inside of the fixed connecting piece is hollow, a channel matched with the adjusting rod is formed in the top of the fixed connecting piece, and a locking part matched with the adjusting rod is arranged at the vertical center line of the top end of the fixed connecting piece.

Preferably, the shape of adjusting the carousel is fan-shaped, the radius size of adjusting the carousel and the middle part cavity size looks adaptation of fixed connection spare, one side surface slope fifteen degrees of adjusting the carousel.

Preferably, the first air cavity is located at the position of the transverse center line of the adjusting turntable, the second air cavity is located at the position of a fifteen-degree included angle with the position of the first air cavity, the cavities of the first air cavity and the second air cavity are cylindrical, and the diameters of the first air cavity and the second air cavity are consistent.

Preferably, the first vent hole and the second vent hole are identical in shape and size and circular in shape, the size of the opening of the first vent hole is matched with that of the opening of the second vent hole, the first vent hole is located at the upper portion of the transverse center line of the fixed connecting piece and forms an included angle of fifteen degrees, and the second vent hole is located at the lower portion of the transverse center line of the fixed connecting piece and forms an included angle of fifteen degrees.

The invention has the following beneficial effects:

1. the invention arranges the adjusting turntable, the first air cavity, the second air cavity and other structures, if the grinding wheel end does not require a specific angle, the first air cavity is opposite to an opening at one end of the vent pipe, so that high-speed air flows through the vent pipe and the first air cavity and flows into the interior of the grinder head through the main vent hole, and further the blade is pushed to rotate at high speed, so that the grinding wheel grinds the vehicle body, if the grinding wheel end requires a specific angle, the adjusting turntable is driven to rotate by controlling the adjusting rod, so that the second air cavity is adjusted to a position opposite to the opening end of the vent pipe, a gas passage is formed between the vent pipe and the second air cavity, meanwhile, the grinder head tilts along with the rotation of the adjusting turntable, and because the rotating amplitude of the adjusting turntable is fifteen degrees, the included angle between the bottom end of the grinder head and the surface of the vehicle body is automatically adjusted to be fifteen degrees, thereby achieving the automatic adjustment of the grinder head angle, the grinding device effectively solves the problem that the included angle is inaccurate due to the fact that the existing grinding device cannot carry out auxiliary adjustment independently and is adjusted manually, and the grinding device can be suitable for various grinding conditions through flexible adjustment of the adjusting rod, the applicable range is greatly increased, multi-directional grinding of the automobile body is facilitated, the grinding effect is improved, and the repairing effect of the automobile body is improved.

2. By arranging the first air cavity, the second air cavity, the air bag and other structures, if the first air cavity and the vent pipe are in positive alignment, part of air flow flows to the inside of the second air cavity by utilizing high-speed air flow flowing in the vent pipe, and then flows to the inside of the air bag through the second vent hole and the second transmission pipe, so that the air bag is rapidly expanded, when the manual force is too large, the downward pressure applied by the vent pipe is increased, the air bag is further downwards extruded, the air in the air bag downwards flows, the convection impact of the two opposite air flows is realized through the air flowing out of the air bag and the air flowing into the inside of the second air cavity by the vent pipe, the downward pressure of the vent pipe is further effectively reduced, the influence of the downward pressure on a machine head of a grinding machine is reduced, and the phenomenon that the grinding wheel is excessively stressed due to the overweight force of a hand when the handle shell is manually held is effectively avoided, if the second air cavity and the vent pipe are aligned, the gas passes through the inner cavity of the first air cavity, then flows into the air bag through the first vent hole and the first transmission pipe, so that the air bag achieves the effect of rapid expansion, and the vent pipe is effectively buffered, and the operation of the grinder head is protected.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic cross-sectional perspective view of the present invention;

FIG. 3 is a schematic cross-sectional front view of the structure of the present invention.

In the figure: 1. a handle housing; 2. an air valve; 3. a breather pipe; 4. fixing the connecting piece; 5. adjusting the turntable; 6. a first air cavity; 7. a second air cavity; 8. a first vent hole; 9. a second vent hole; 10. a first transfer tube; 11. a second transfer pipe; 12. an air bag; 13. adjusting a rod; 14. a sander head; 15. and a primary vent.

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. 1-3, a grinding device for an automobile body comprises a handle housing 1, an air valve 2 is fixedly installed in an inner cavity of the handle housing 1, an air pipe 3 located in the inner cavity of the handle housing 1 is fixedly installed at one end of the air valve 2, a fixed connecting piece 4 is fixedly installed outside one end of the air pipe 3, an adjusting turntable 5 is movably installed in the middle of the fixed connecting piece 4, a first air cavity 6 is arranged inside the adjusting turntable 5, a second air cavity 7 located on one side of the first air cavity 6 is arranged inside the adjusting turntable 5, a first vent hole 8 is arranged on the surface of the upper portion of the inner wall of the fixed connecting piece 4, a second vent hole 9 is arranged on the surface of the lower portion of the inner wall of the fixed connecting piece 4, a first transmission pipe 10 is fixedly installed outside the first vent hole 8, a second transmission pipe 11 is fixedly installed outside the second vent hole 9, and a gap between the two opposite ends of the first transmission pipe 10 and the second transmission pipe 11 is fixedly installed with the outer wall located at one end of the air pipe 3 An air bag 12, an adjusting rod 13 is movably arranged at the top end of a fixed connecting piece 4, the adjusting rod 13 is fixedly connected with the top end of an adjusting rotary disc 5, a polisher head 14 is movably arranged at one side of the fixed connecting piece 4, an annular channel matched with the fixed connecting piece 4 in shape is formed in the surface of one side of the polisher head 14, the surface of the polisher head 14 is fixedly connected with the surface of one side of the adjusting rotary disc 5, a main vent 15 is formed in the polisher head 14, the main vent 15 is located at a position opposite to the circle center of the adjusting rotary disc 5, by arranging the adjusting rotary disc 5, a first air cavity 6, a second air cavity 7 and other structures, when an automobile body is polished, if a grinding wheel end does not require a specific angle, the first air cavity 6 is opposite to one end opening of the air pipe 3, a passage is formed between the first air cavity and the air cavity 6, and high-speed air flows through the air pipe 3 and the first air cavity 6 under the control of an air valve 2, and then the air is introduced into the main air vent 15 to push the blade to rotate at a high speed, if the grinding wheel end needs a specific angle, the adjusting rod 13 is controlled to rotate, so as to drive the adjusting rotary disc 5 to rotate circularly in the middle of the fixed connecting part 4, because of the shape limitation of the adjusting rotary disc 5, when the adjusting rod 13 rotates to a vertical position, namely the position of the vertical central line of the fixed connecting part 4, the second air cavity 7 is accurately adjusted to a position opposite to the opening end of the air pipe 3, a passage is formed between the air pipe 3 and the second air cavity 7, the first air cavity 6 rotates to a position inclined by fifteen degrees, meanwhile, the grinder head 14 is inclined along with the rotation of the adjusting rotary disc 5, because the rotation amplitude of the adjusting rotary disc 5 is fifteen degrees, the rotation amplitude of the grinder head 14 is also fifteen degrees, and further, the included angle between the bottom end of the grinder head 14 and the surface of the vehicle body is accurately adjusted to be fifteen degrees, and through the locking on adjusting pole 13 and 4 tops of fixed connector, thereby make polisher aircraft nose 14 remain the tilt state all the time, to sum up, rotate through adjusting pole 13 and adjust, thereby reach the autonomic regulation of polisher aircraft nose 14 angle, effectively avoid current grinder can't independently carry out the auxiliary regulation, rely on artifical manual adjustment and lead to the contained angle inaccurate, and can't keep correct angle all the time during the operation, and lead to grinder and automobile body contained angle too big or undersize, cause the depth that automobile body surface was ground too shallow or too deep, cause the relatively poor problem of automobile body surface repair effect.

Referring to fig. 1-3, the fixed connecting member 4 is in a ring shape, the inside of the fixed connecting member 4 is hollow, a channel adapted to the adjusting rod 13 is formed at the top of the fixed connecting member 4, and a locking component adapted to the adjusting rod 13 is disposed at a vertical center line of the top end of the fixed connecting member 4.

Referring to fig. 1-3, the adjusting turntable 5 is fan-shaped, the radius of the adjusting turntable 5 is matched with the middle cavity of the fixed connecting member 4, and one side surface of the adjusting turntable 5 is inclined by fifteen degrees.

Referring to fig. 2-3, wherein the first air cavity 6 is located at the position of the transverse center line of the adjusting turntable 5, the second air cavity 7 is located at the position forming an included angle of fifteen degrees with the position of the first air cavity 6, the cavities of the first air cavity 6 and the second air cavity 7 are cylindrical, and the diameters of the first air cavity 6 and the second air cavity 7 are the same, by arranging the first air cavity 6 and the second air cavity 7, when the first air cavity 6 and the vent pipe 3 are aligned, the high-speed air flow inside the vent pipe 3 flows into the first air cavity 6, because one end of the second air cavity 7 is communicated with the first air cavity 6, part of the air flow flows into the second air cavity 7, passes through the second vent hole 9 and the second transmission pipe 11 and further flows into the air bag 12, because the first air cavity 6 and the vent pipe 3 are aligned, the opening of the first vent hole 8 is blocked by the surface of the adjusting turntable 5, and cannot form circulation, the air bag 12 is rapidly inflated by the air, the air bag 12 is inflated to wrap one end of the vent pipe 3, when the automobile body is ground, if the manual force is too large, the downward applied pressure of the vent pipe 3 is increased, the air bag 12 is further squeezed downwards, the air in the air bag 12 flows downwards, but the air in the vent pipe 3 is continuously infused, the air in the first air cavity 6 still continuously flows into the second air cavity 7, the air flowing out of the air bag 12 and the air flowing into the second air cavity 7 are subjected to convection collision of two air flows, so that the downward pressure impact caused by the vent pipe 3 is effectively reduced, the downward pressure of the vent pipe 3 is weakened, the influence of the pressing of the vent pipe 3 on the grinder head 14 is reduced, and further, the problem that when the handle shell 1 is manually held by hand, the excessive force applied to the hand is effectively avoided, so that the grinder head 14 is excessively pressed is solved, cause the emery wheel atress too big, and produce the flywheel phenomenon, if the emery wheel produces the flywheel, then can lead to the staff health to be cut wounded, there is very big potential safety hazard problem, the same reason, when second air cavity 7 and breather pipe 3 are just to the time, gaseous inner chamber through first air cavity 6, rethread first air vent 8 and first transmission pipe 10, and then flow in the inside of gasbag 12, and this moment, the open end of second air vent 9 is by the surface blockage of adjusting turntable 5 and can't circulate, then gasbag 12 also reaches quick expanded effect, implement the buffering to breather pipe 3, reach the protection to the operation of the machine aircraft nose 14 of polishing.

Referring to fig. 2-3, the first vent hole 8 and the second vent hole 9 have the same shape and size, both of which are circular, and the size of the opening is matched with the size of the openings of the first air cavity 6 and the second air cavity 7, the first vent hole 8 is located at the upper part of the transverse center line of the fixed connector 4 and forms an included angle of fifteen degrees, and the second vent hole 9 is located at the lower part of the transverse center line of the fixed connector 4 and forms an included angle of fifteen degrees.

The using method of the invention has the following working principle:

when the automobile body is required to be polished, one end of the handle shell 1 is aligned to a mounting opening on one side of the fixed connecting part 4, one end of the convex vent pipe 3 is inserted into the mounting opening and fixedly assembled by the existing fixed part, after the vent pipe 3 is confirmed to be mounted, if the grinding wheel end does not need to be polished at a specific angle, the adjusting rod 13 is shifted outwards until the adjusting rod 13 is inclined to the maximum value of the movable range, namely, a fifteen-degree included angle is formed between the adjusting rod and the vertical direction, the position of the adjusting rod 13 is locked by a locking part at the top of the fixed connecting part 4, at the moment, the first air cavity 6 inside the adjusting turntable 5 in the middle of the fixed connecting part 4 is just opposite to the opening end of the vent pipe 3, and if the grinding wheel end needs to be polished at a specific angle, the adjusting rod 13 is shifted inwards until the adjusting rod 13 moves to the vertical direction, namely, the position of the vertical central line of the fixed connecting part 4 is moved to the correct position, and then the position of the adjusting rod 13 is locked by the locking part at the top of the fixed connecting part 4, at this moment, the second air cavity 7 inside the adjusting turntable 5 at the middle part of the fixed connecting part 4 is just opposite to the opening end of the air pipe 3, and the polisher head 14 is in a fifteen-degree inclined direction along with the deviation of the adjusting turntable 5, so that the effect of automatically adjusting the position of the grinding wheel is achieved.

After the interior of the fixed connecting part 4 is properly adjusted according to the required conditions, the installation of all parts of the device is confirmed to be correct, after the normal installation is confirmed, the conventional air pump device is started, the air valve 2 is opened, the inner cavity of the air pipe 3 is continuously ventilated, and then the air continuously circulates to the interior of the polisher head 14 through the air pipe 3 and the first air cavity 6 or continuously circulates to the interior of the polisher head 14 through the main air vent 15 through the air pipe 3 and the second air cavity 7, so that the blades in the polisher head 14 are pushed to rotate rapidly through high-speed air flow, and further the grinding wheel at the bottom end of the polisher head 14 is driven to rotate at a high speed, and the vehicle body is polished.

After the automobile body is ground, the existing air pump and the air valve 2 are closed.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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. A grinder device for automobile bodies comprises a handle shell (1), and is characterized in that: the inner cavity of the handle shell (1) is fixedly provided with an air valve (2), one end of the air valve (2) is fixedly provided with a vent pipe (3) positioned in the inner cavity of the handle shell (1), one end of the vent pipe (3) is fixedly provided with a fixed connecting piece (4) outside, the middle part of the fixed connecting piece (4) is movably provided with an adjusting turntable (5), the inside of the adjusting turntable (5) is provided with a first air cavity (6), the inside of the adjusting turntable (5) is provided with a second air cavity (7) positioned at one side of the first air cavity (6), the upper surface of the inner wall of the fixed connecting piece (4) is provided with a first air vent (8), the lower surface of the inner wall of the fixed connecting piece (4) is provided with a second air vent (9), the outside of the first air vent (8) is fixedly provided with a first transmission pipe (10), the outside of the second air vent (9) is fixedly provided with a second transmission pipe (11), fixed mounting has gasbag (12) that are located the one end outer wall of breather pipe (3) in the clearance between first transmission pipe (10) and the relative both ends of second transmission pipe (11), the top movable mounting of fixed connector (4) has regulation pole (13), and adjusts the top fixed connection of pole (13) and regulation carousel (5), one side movable mounting of fixed connector (4) has polisher aircraft nose (14), main blow vent (15) have been seted up to the inside of polisher aircraft nose (14).

2. The grinding apparatus for an automobile body according to claim 1, characterized in that: the shape of fixed connecting piece (4) is the ring shape, and the inside of fixed connecting piece (4) is cavity, the channel with adjusting pole (13) looks adaptation is seted up at the top of fixed connecting piece (4), and the vertical central line department in top of fixed connecting piece (4) is equipped with the locking part with adjusting pole (13) looks adaptation.

3. The grinding apparatus for an automobile body according to claim 1, characterized in that: the shape of adjusting carousel (5) is fan-shaped, the radius size of adjusting carousel (5) and the middle part cavity size looks adaptation of fixed connector (4), the one side surface slope fifteen degrees of adjusting carousel (5).

4. The grinding apparatus for an automobile body according to claim 1, characterized in that: the first air cavity (6) is located at the position of the transverse center line of the adjusting turntable (5), the second air cavity (7) is located at the position of a fifteen-degree included angle with the position of the first air cavity (6), the first air cavity (6) and the second air cavity (7) are cylindrical, and the diameters of the first air cavity and the second air cavity are consistent.

5. The grinding apparatus for an automobile body according to claim 1, characterized in that: the shape and size of the first vent hole (8) and the second vent hole (9) are consistent, the first vent hole and the second vent hole are both circular, the opening size of the first vent hole is matched with that of the first air cavity (6) and the second air cavity (7), the first vent hole (8) is located at the upper portion of the transverse central line of the fixed connecting piece (4) and is at a fifteen-degree included angle, and the second vent hole (9) is located at the lower portion of the transverse central line of the fixed connecting piece (4) and is at a fifteen-degree included angle.