CN113696058B

CN113696058B - Automobile part polishing device convenient for angle adjustment

Info

Publication number: CN113696058B
Application number: CN202111266779.8A
Authority: CN
Inventors: 战永嘉; 阮永喜; 孙明智
Original assignee: Longkou Tongli Automobile Components Manufacturing Co ltd
Current assignee: Longkou Tongli Automobile Components Manufacturing Co ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-03-29
Anticipated expiration: 2041-10-29
Also published as: CN113696058A

Abstract

The invention relates to the technical field of automobile part grinding, and discloses an automobile part grinding device convenient for angle adjustment, which comprises an installation main frame, a grinding mechanism arranged at the top end of the installation main frame, a clamping mechanism arranged at the bottom end of the installation main frame, a part clamped in the clamping mechanism, and a grinding mechanism for grinding the clamped part, wherein the grinding mechanism comprises a position adjusting unit arranged at the top end of the installation main frame, an angle adjusting unit arranged at the bottom end of the position adjusting unit, a direction adjusting unit arranged at the bottom end of the angle adjusting unit, and a grinding unit arranged on the direction adjusting unit The structure, some parts with irregular grooves on the surfaces are polished, and the application range is wide.

Description

Automobile part polishing device convenient for angle adjustment

Technical Field

The invention relates to the technical field of automobile part grinding, in particular to an automobile part grinding device convenient for angle adjustment.

Background

When an automobile part is produced and maintained, edges, burrs, rough surfaces and the like on the body surface of the automobile part need to be polished, the automobile part is various, the size, the shape and the structure of each part are different, for example, as shown in fig. 5, an end cover is one type of the automobile part, the part is provided with an irregular surface and an irregular groove body, when the part is polished, only manual polishing can be performed at present due to the particularity of the part, the manual polishing speed is low, and the polishing efficiency is low.

The existing automobile polishing device usually only has a constant polishing angle, and only can polish some special parts, such as the automobile parts, when polishing, different polishing angles are needed at different positions of the parts, while the existing device can not adjust the polishing angle at any position, and can not polish parts with different shapes, structures and irregular grooves on the surfaces, so that the application range is small; in addition, in the process of the conventional polishing equipment, one surface is usually polished first, then the surface is disassembled for secondary clamping, and then the other surface is polished, so that all-dimensional polishing of the part can be completed.

Disclosure of Invention

The invention aims to solve the technical problems that the polishing angle cannot be adjusted at any position of a part, the application range is small, the practicability is poor, the part can be polished only by secondary clamping, the polishing time is long, and the polishing efficiency is low.

The technical scheme of the invention is realized as follows: an automobile part polishing device convenient for angle adjustment comprises an installation main frame, a polishing mechanism arranged at the top end of the installation main frame, a clamping mechanism arranged at the bottom end of the installation main frame, a part clamped in the clamping mechanism, and a polishing mechanism for polishing the clamped part, wherein the polishing mechanism comprises a position adjusting unit arranged at the top end of the installation main frame, an angle adjusting unit arranged at the bottom end of the position adjusting unit, a direction adjusting unit arranged at the bottom end of the angle adjusting unit, and a polishing unit arranged on the direction adjusting unit, the position adjusting unit adjusts the polishing position of the polishing unit through the angle adjusting unit and the direction adjusting unit, the angle adjusting unit adjusts the polishing angle of the polishing unit through the direction adjusting unit, the direction adjusting unit adjusts the polishing direction of the polishing unit, and the position adjusting unit compensates for the displacement generated by the angle adjusting unit through changing the angle, the position adjusting unit, the angle adjusting unit and the direction adjusting unit are matched to control the grinding unit to act so as to grind the front side, the back side and the periphery of the part at any angle, the part is ground in all directions and at multiple angles in a matching mode, secondary clamping of the part is not needed, errors caused by secondary clamping can be avoided, and grinding precision is improved; the time waste caused by secondary clamping can be avoided, the polishing time is shortened, and the polishing efficiency is improved; can polish different positions, different angles and the not equidirectional on part surface through the cooperation, the practicality is strong, and can polish different shapes, structure, some parts that have irregular slot on surface in addition, and application scope is wide.

Further, the angle adjusting unit comprises a first mounting frame, a main ball head seat mounted at the bottom end of the first mounting frame, a main ball head sleeved in the main ball head seat, a control rod fixed at the top end of the main ball head, a control ball head fixed at the top end of the control rod, a control ball head seat sleeved on the control ball head, a movable connecting clamp rotatably connected at the top end of the first mounting frame, a first telescopic control rod rotatably connected in the movable connecting clamp, a telescopic end of the first telescopic control rod is movably connected with the control ball head through a universal joint, the number of the movable connecting clamps is three on the first mounting frame in a circular array, three first telescopic control rods are correspondingly mounted in the three movable connecting clamps, telescopic ends of the three first telescopic control rods are respectively connected with the control ball head seat through universal joints, a mounting column is fixed at the bottom end of the main ball head, and the direction adjusting unit is mounted at the bottom end of the mounting column, the axis of the mounting column is coaxial with the axis of the control rod, the three telescopic control rods respectively stretch and retract by different lengths, so that the control ball head seat can move at any position in a spherical surface by taking the main ball head as a center, the main ball head can rotate at any angle, the main ball head drives the mounting column to rotate at any angle, the direction adjusting unit and the polishing unit can move at any angle, and the polishing unit can polish at any angle.

Further, the direction adjusting unit comprises an installation arm, a movable arm connected in the installation arm in a rotating mode, and a first driving mechanism arranged on the side face of the installation arm, wherein the first driving mechanism drives the movable arm to rotate, the polishing unit is arranged at the end of the movable arm, and the movable arm can be inserted into the installation arm in an embedding mode.

Furthermore, the direction adjusting unit is connected with the mounting column through a telescopic arm.

Furthermore, the position adjusting unit comprises a sliding ring arranged at the top end of the installation main frame, an installation ring in sliding connection with the sliding ring, a sliding frame fixed at the bottom end of the installation ring, a sliding seat in the sliding frame in sliding connection, a driving mechanism II arranged at the top end of the installation main frame, and a driving mechanism III arranged on one side of the installation ring, wherein the driving mechanism III drives the sliding seat to slide, the driving mechanism II drives the installation ring to rotate, the angle adjusting unit is arranged at the bottom end of the sliding seat, the sliding frame is arranged in the diameter direction of the installation ring, and the sliding seat can be moved randomly in a circular surface through the matching of rotating and sliding modes, so that the position of the polishing unit in the circular surface can be changed, and the displacement generated when the angle adjusting unit adjusts the angle can be compensated.

Furthermore, the polishing unit comprises a driving motor, an automatic tool changing spindle arranged at the output shaft end of the driving motor, and a polishing tool clamped at the end of the automatic tool changing spindle, wherein the driving motor drives the polishing tool to rotate through the automatic tool changing spindle to realize polishing.

Furthermore, one side of the installation main frame is provided with an inclined semi-circular tool rest, polishing tools of different models are placed on the semi-circular tool rest, the circle center of the semi-circular tool rest and the circle center of the installation ring are on the same vertical line, and the automatic tool changing main shaft and the semi-circular tool rest are matched for automatic tool changing.

Further, the clamping mechanism comprises two slide bars fixed between the installation main frame and two clamping claws slidably connected with the two slide bars respectively, the two clamping claws are symmetrically arranged, two telescopic control rods II are correspondingly installed on two sides of the inside of the installation main frame, the two telescopic control rods II correspond to the two clamping claws and are connected to the side faces of the corresponding clamping claws, the clamping centers of the two clamping claws and the circle center of the installation ring are on the same vertical line, and the two telescopic control rods II drive the two clamping claws to move oppositely to clamp the part.

Further, the bottom of installation body frame is provided with iron fillings and collects the shell, iron fillings are collected the shell appearance and are conical casing, the top mouth binding off design of shell is collected to iron fillings, the bottom mounting that the shell was collected to iron fillings has iron fillings to collect the storehouse, iron fillings are collected the shell and are constructed the parcel with the clamping in inside.

Furthermore, the side of the movable arm is fixed with a spray head through a clamp, the input end of the spray head is communicated with an output pipe of an external air source, and two spray heads are correspondingly arranged on two sides of the movable arm.

The beneficial effects of the invention are summarized as follows: firstly, the bottom of a part is polished in a manner that the telescopic arm is telescopic and the driving mechanism drives the movable arm to rotate and match, the polishing can be completed in one step, the part does not need to be clamped for the second time, errors caused by the clamping for the second time can be avoided, and the polishing precision is improved; the time waste caused by secondary clamping can be avoided, the polishing time is shortened, and the polishing efficiency is improved; and secondly, different polishing angles can be adjusted to different positions on the surface of the part through the matching of the position adjusting unit, the angle adjusting unit and the direction adjusting unit, and polishing in different directions is realized, so that the polishing machine is high in practicability, can be suitable for parts with different shapes and structures, and is wide in application range, and parts with irregular grooves on the surfaces can be polished.

Drawings

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

Fig. 2 is a schematic structural view of an angle adjusting unit and a direction adjusting unit according to the present invention.

Fig. 3 is a schematic structural diagram of a position adjustment unit according to the present invention.

Fig. 4 is a schematic structural view of the clamping mechanism of the present invention.

FIG. 5 is a bottom schematic view of a part of the present invention.

In the figure: the automatic tool changing device comprises a mounting main frame 1, a polishing mechanism 2, a clamping mechanism 3, parts 4, a position adjusting unit 5, an angle adjusting unit 6, a direction adjusting unit 7, a polishing unit 8, a first mounting frame 9, a first main ball seat 10, a main ball head 11, a control rod 12, a control ball head 13, a control ball seat 14, a movable connecting clamp 15, a first telescopic control rod 16, a universal joint 17, a mounting column 18, a mounting arm 19, a movable arm 20, a first driving mechanism 21, a telescopic arm 22, a sliding ring 23, a mounting ring 24, a sliding frame 25, a sliding seat 26, a second driving mechanism 27, a third driving mechanism 28, a driving motor 29, an automatic tool changing main shaft 30, a polishing tool 31, a semicircular tool rest 32, a sliding rod 33, a clamping jaw 34, a second telescopic control rod 35, an iron scrap collecting shell 36, an iron scrap collecting bin 37 and a nozzle 38.

Detailed Description

For the purpose of enhancing the understanding of the present invention, the following will provide a further detailed description of an automotive part grinding apparatus for facilitating angle adjustment in accordance with the present invention, which is provided by way of illustration only and is not intended to limit the scope of the present invention.

As shown in fig. 1 to 5, an automobile part polishing device convenient for angle adjustment comprises an installation main frame 1, a polishing mechanism 2 installed at the top end of the installation main frame 1, a clamping mechanism 3 installed at the bottom end of the installation main frame 1, a part 4 clamped in the clamping mechanism 3, the polishing mechanism 2 polishing the clamped part 4, the polishing mechanism 2 comprises a position adjusting unit 5 installed at the top end of the installation main frame 1, an angle adjusting unit 6 installed at the bottom end of the position adjusting unit 5, a direction adjusting unit 7 installed at the bottom end of the angle adjusting unit 6, a polishing unit 8 installed on the direction adjusting unit 7, the position adjusting unit 5 adjusts the polishing position of the polishing unit 8 through the angle adjusting unit 6 and the direction adjusting unit 7, the angle adjusting unit 6 adjusts the polishing angle of the polishing unit 8 through the direction adjusting unit 7, the direction adjusting unit 7 adjusts the polishing direction of the polishing unit 8, the position adjusting unit 5 compensates displacement generated by angle changing of the angle adjusting unit 6, the position adjusting unit 5, the angle adjusting unit 6 and the direction adjusting unit 7 are matched to control the grinding unit 8 to act to grind the front, the back and the periphery of the part 4 at any angle, the part 4 is ground in all directions and at multiple angles in a matching mode, secondary clamping of the part 4 is not needed, errors generated by the secondary clamping can be avoided, and grinding precision is improved; the time waste caused by secondary clamping can be avoided, the polishing time is shortened, and the polishing efficiency is improved; the parts 4 can be polished at different positions, different angles and different directions on the surface through matching, the practicability is high, the parts 4 with different shapes and structures and also with some irregular grooves on the surface can be polished, and the application range is wide; the angle adjusting unit 6 comprises a first mounting frame 9, a main ball seat 10 mounted at the bottom end of the first mounting frame 9, a main ball 11 sleeved in the main ball seat 10, a control rod 12 fixed at the top end of the main ball 11, a control ball 13 fixed at the top end of the control rod 12, a control ball seat 14 sleeved on the control ball 13, a first movable connecting clamp 15 rotatably connected at the top end of the first mounting frame 9, a first telescopic control rod 16 rotatably connected in the first movable connecting clamp 15, a telescopic end of the first telescopic control rod 16 is movably connected with the control ball 13 through a universal joint 17, three first telescopic control rods 16 are arranged on the first mounting frame 9 in a circular array mode on the first mounting frame 15, three first telescopic control rods 16 are correspondingly mounted in the three first movable connecting clamps 15, telescopic ends of the three first telescopic control rods 16 are respectively connected with the control ball seat 14 through the universal joint 17, and mounting columns 18 are fixed at the bottom end of the main ball 11, the direction adjusting unit 7 is installed at the bottom end of the installation column 18, the axis of the installation column 18 and the axis of the control rod 12 are coaxial, and the three telescopic control rods 16 respectively stretch and retract by different lengths, so that the control ball head seat 14 can move at any position in a spherical surface by taking the main ball head 11 as a center, the main ball head 11 can rotate by any angle, the main ball head 11 drives the installation column 18 to rotate by any angle, the direction adjusting unit 7 and the grinding unit 8 can move by any angle, and the grinding unit 8 can grind by any angle; the direction adjusting unit 7 comprises a mounting arm 19, a movable arm 20 rotatably connected in the mounting arm 19, and a first driving mechanism 21 arranged on the side surface of the mounting arm 19, wherein the first driving mechanism 21 drives the movable arm 20 to rotate, the grinding unit 8 is arranged at the end of the movable arm 20, and the movable arm 20 can be inserted into the mounting arm 19; the direction adjusting unit 7 is connected with the mounting column 18 through a telescopic arm 22; the position adjusting unit 5 comprises a sliding ring 23 arranged at the top end of the mounting main frame 1, a mounting ring 24 connected with the sliding ring 23 in a sliding manner, a sliding frame 25 fixed at the bottom end of the mounting ring 24, a sliding seat 26 connected in the sliding frame 25 in a sliding manner, a second driving mechanism 27 arranged at the top end of the mounting main frame 1, and a third driving mechanism 28 arranged on one side of the mounting ring 24, wherein the third driving mechanism 28 drives the sliding seat 26 to slide, the second driving mechanism 27 drives the mounting ring 24 to rotate, the angle adjusting unit 6 is arranged at the bottom end of the sliding seat 26, the sliding frame 25 is arranged in one diameter direction of the mounting ring 24, and the sliding seat 26 can move freely in one circle by matching of rotating and sliding manners, so that the position of the grinding unit 8 in one plane can be changed, and the displacement generated when the angle adjusting unit 6 adjusts the angle can be compensated; the grinding unit 8 comprises a driving motor 29, an automatic tool changing spindle 30 arranged at the output shaft end of the driving motor 29, and a grinding tool 31 clamped at the end of the automatic tool changing spindle 30, wherein the driving motor 29 drives the grinding tool 31 to rotate through the automatic tool changing spindle 30 to realize grinding action; an inclined semicircular tool rest 32 is arranged on one side of the mounting main frame 1, grinding tools 31 of different types are placed on the semicircular tool rest 32, the circle center of the semicircular tool rest 32 and the circle center of the mounting ring 24 are on the same vertical line, and the automatic tool changing main shaft 30 and the semicircular tool rest 32 are matched for automatic tool changing; the clamping mechanism 3 comprises two slide rods 33 fixed between the installation main frame 1 and two clamping claws 34 respectively connected with the two slide rods 33 in a sliding manner, the two clamping claws 34 are symmetrically arranged, two telescopic control rods 35 are correspondingly installed at two sides in the installation main frame 1, the two telescopic control rods 35 are arranged corresponding to the two clamping claws 34, the telescopic ends of the telescopic control rods 35 are connected to the side surfaces of the corresponding clamping claws 34, the clamping centers of the two clamping claws 34 and the circle center of the installation ring 24 are on the same vertical line, and the two telescopic control rods 35 drive the two clamping claws 34 to move oppositely to clamp the part 4; an iron chip collecting shell 36 is arranged at the bottom end of the mounting main frame 1, the iron chip collecting shell 36 is a conical shell, a top opening of the iron chip collecting shell 36 is closed, an iron chip collecting bin 37 is fixed at the bottom end of the iron chip collecting shell 36, and the iron chip collecting shell 36 wraps the clamping mechanism 3 inside; the side surface of the movable arm 20 is fixed with the spray heads 38 through the clips, the input ends of the spray heads 38 are communicated with the output pipe of an external air source, two spray heads 38 are correspondingly arranged on two sides of the movable arm 20, the spray heads 38 can spray air mainly during polishing, scrap iron generated by polishing can be blown off, and the scrap iron is prevented from influencing polishing, so that the polishing quality is improved;

it is worth noting that the first telescopic control rod 16 and the second telescopic control rod 35 in the scheme are rod bodies capable of controlling telescopic movement, and hydraulic rods, electric push rods or pneumatic rods and the like capable of controlling telescopic movement in the prior art can be selected, and hydraulic rods are preferred; the first driving mechanism 21 is a mechanism capable of driving the movable arm 20 to rotate, and other mechanisms capable of driving the movable arm 20 to rotate, such as a servo motor, an end gear set and the like in the prior art, can be selected, and preferably, the servo motor is selected; the second driving mechanism 27 is preferably a gear ring structure in the prior art, and other mechanisms capable of driving the mounting ring 24 to rotate can be selected; the third driving mechanism 28 is preferably a screw mechanism, and other mechanisms capable of driving the sliding seat 26 to slide, such as a rack and pinion mechanism, can be selected.

Instructions for use: firstly, a part 4 is clamped, the part 4 is placed between two clamping claws 34, then two telescopic control rods 35 are controlled to act, the two telescopic control rods 35 act simultaneously to drive the two clamping claws 34 to move oppositely to fixedly clamp the part 4 in the middle, the clamping claws 34 have enough length to enable the bottom end of the part 4 to have enough space, so that a grinding unit 8 can perform grinding action conveniently, the claw arms of the clamping claws 34 have outward bending degrees, the abdicating effect can be achieved when the grinding unit 8 grinds, the grinding operation is more convenient, grinding can be started after clamping is completed, when grinding is performed, a driving mechanism II 27 drives a mounting ring 24 to rotate, the mounting ring 24 drives a sliding frame 25 to rotate, the sliding frame 25 drives a sliding seat 26 to rotate, meanwhile, the sliding seat 26 can also be driven by a driving mechanism III 28 to move, and then the sliding seat 26 drives an angle adjusting unit 6 below the sliding seat 26 to rotate, The direction adjusting unit 7 and the grinding unit 8 move, so that the grinding unit 8 acts to change the grinding position; when the grinding direction of the grinding angle is adjusted, the three first telescopic control rods 16 are controlled to act, the three first telescopic control rods 16 simultaneously act on the control ball seat 14, the control ball seat 14 drives the control ball 13 to act, the control ball 13 drives the main ball 11 to move through the control rod 12, the main ball 11 drives the mounting column 18 to move, the mounting column 18 drives the mounting arm 19 to move through the telescopic arm 22, the mounting arm 19 drives the movable arm 20 to move, the movable arm 20 drives the grinding unit 8 to move, and the grinding angle of the grinding unit 8 can be changed through the action mode; the first driving mechanism 21 drives the movable arm 20 to move, the movable arm 20 drives the polishing unit 8 to move so as to adjust the polishing direction, the basic motion principle of the scheme is as shown in the mode, and polishing at different positions and different angles and different directions is realized mainly through the mutual matching of the structures during polishing;

to better illustrate the manner of use of the present invention, the following illustrates the specific sanding action mix: for example, the part 4 to be polished is an end cover (an engine, an oil pump and the like in an automobile part are all provided with similar end covers), and a groove body with an irregular trend at the bottom of the end cover needs to be polished (as shown in fig. 5), and because of the special trend, the existing mode can only be manually polished; in the invention (as shown in figure 2), when polishing, firstly, an automatic tool changing spindle 30 grabs a proper polishing tool 31 which can polish a groove body on a semicircular tool rest 32, then the automatic tool changing spindle 30 drives the polishing tool 31 to move into the groove body to be polished, then a driving motor 29 drives the polishing tool 31 to rotate through the automatic tool changing spindle 30 to polish the groove body, when the polishing tool 31 needs to incline forward by a certain angle relative to a part 4 (the tool tip of the polishing tool 31 is fixed, the tool body rotates forward by a certain angle), three telescopic control rods one 16 drive a control ball head 13 to act, the control ball head 13 drives a main ball head 11 to deflect forward by a certain angle, at the moment, the polishing tool 31 rotates by a certain angle around the main ball head 11 to be decomposed into upward displacement and backward displacement so as to generate angle change, and the upward displacement and the backward displacement are eliminated through compensation in the process so as to only keep the angle, the telescopic arm 22 extends to offset the upward-rising displacement, the position adjusting unit 5 controls the sliding seat 26 to move forwards to offset the backward-moving displacement, and the grinding tool 31 only keeps the angle deflection in this way, namely, the position of the tool tip of the grinding tool 31 relative to the groove body of the part 4 is ensured to be unchanged, and the adjustment of different angles at different positions of the part 4 is realized. When other similar parts 4 with different structures and different shapes are ground, the main ball head 11 can rotate in any direction because of the spherical surface, so that the grinding tool can be realized in a similar angle adjusting mode, when the grinding tool 31 grinds the bottom surface of the part 4, the mounting arm 19 and the movable arm 20 rotate to form a barb shape and move to the bottom of the part 4, and when the bottom surface is ground, the grinding tool is also suitable for angle adjustment; when the front of the part 4 is polished, the mounting arm 19 and the movable arm 20 are relatively flat, the movable arm 20 is over against the front of the part 4, and the polishing tool 31 rotates to polish the front of the part; when the polishing position needs to be changed, the second driving mechanism 27 is controlled to drive the mounting ring 24, and the third driving mechanism 28 drives the sliding seat 26 to move in a matching manner, so that the position can be adjusted; to sum up, this scheme can carry out polishing of arbitrary angle to 4 optional position departments of part to can be applicable to the part of equidimension not, different shapes, different structure, application scope is wide, and the practicality is strong.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides an automobile parts grinding device convenient to angle regulation, includes installation body frame (1), installs grinding machanism (2) on installation body frame (1) top, installs clamping machine (3) in installation body frame (1) bottom, clamping machine (3) interior clamp of clamping machine has part (4), grinding machanism (2) are polished part (4) of clamping, its characterized in that: grinding machanism (2) including installing position control unit (5) on installation body frame (1) top, install angle adjusting unit (6) in position adjusting unit (5) bottom, install direction adjusting unit (7) in angle adjusting unit (6) bottom, install grinding unit (8) on direction adjusting unit (7), the polishing position of grinding unit (8) is adjusted through angle adjusting unit (6) and direction adjusting unit (7) in position adjusting unit (5), the angle of polishing of grinding unit (8) is adjusted through direction adjusting unit (7) in angle adjusting unit (6), the direction of polishing of grinding unit (8) is adjusted through direction adjusting unit (7), position adjusting unit (5) compensate the displacement that angle adjusting unit (6) transform angle produced, position adjusting unit (5) and direction adjusting unit (7), The angle adjusting unit (6) and the direction adjusting unit (7) are matched to control the grinding unit (8) to act so as to grind the front side, the back side and the periphery of the part (4) at any angle; the angle adjusting unit (6) comprises a first mounting frame (9), a main ball head seat (10) arranged at the bottom end of the first mounting frame (9), a main ball head (11) sleeved in the main ball head seat (10), a control rod (12) fixed at the top end of the main ball head (11), a control ball head (13) fixed at the top end of the control rod (12), a control ball head seat (14) sleeved on the control ball head (13), a movable connecting clamp (15) rotatably connected to the top end of the first mounting frame (9), a first telescopic control rod (16) rotatably connected in the movable connecting clamp (15), a telescopic end head of the first telescopic control rod (16) is movably connected with the control ball head (13) through a universal joint (17), the movable connecting clamp (15) is three in a circular array on the first mounting frame (9), and three first telescopic control rods (16) are correspondingly arranged in the three movable connecting clamps (15), the telescopic ends of the three telescopic control rods I (16) are respectively connected with a control ball head seat (14) through universal joints (17), the bottom end of the main ball head (11) is fixedly provided with a mounting column (18), the direction adjusting unit (7) is mounted at the bottom end of the mounting column (18), and the axis of the mounting column (18) is coaxial with the axis of the control rod (12); the direction adjusting unit (7) comprises a mounting arm (19), a movable arm (20) rotatably connected in the mounting arm (19), and a first driving mechanism (21) mounted on the side surface of the mounting arm (19), wherein the first driving mechanism (21) drives the movable arm (20) to rotate, the polishing unit (8) is mounted at the end of the movable arm (20), and the movable arm (20) can be inserted into the mounting arm (19); the position adjusting unit (5) comprises a sliding ring (23) arranged at the top end of the installing main frame (1), an installing ring (24) connected with the sliding ring (23) in a sliding mode, a sliding frame (25) fixed at the bottom end of the installing ring (24), a sliding seat (26) connected in the sliding frame (25) in a sliding mode, a driving mechanism II (27) arranged at the top end of the installing main frame (1), and a driving mechanism III (28) arranged on one side of the installing ring (24), wherein the driving mechanism III (28) drives the sliding seat (26) to slide, the driving mechanism II (27) drives the installing ring (24) to rotate, the angle adjusting unit (6) is arranged at the bottom end of the sliding seat (26), and the sliding frame (25) is arranged in the diameter direction of the installing ring (24).

2. The automobile part grinding device convenient for angle adjustment according to claim 1, wherein: the direction adjusting unit (7) is connected with the mounting column (18) through a telescopic arm (22).

3. The automobile part grinding device convenient for angle adjustment according to claim 1 or 2, wherein: the grinding machine set (8) comprises a driving motor (29), an automatic tool changing main shaft (30) arranged at the output shaft end of the driving motor (29), a grinding tool (31) clamped at the end of the automatic tool changing main shaft (30), and the driving motor (29) drives the grinding tool (31) to rotate through the automatic tool changing main shaft (30) to realize grinding actions.

4. The automobile part grinding device convenient for angle adjustment according to claim 3, wherein: one side of the installation main frame (1) is provided with an inclined semicircular tool rest (32), polishing tools (31) of different models are placed on the semicircular tool rest (32), the circle center of the semicircular tool rest (32) and the circle center of the installation ring (24) are on the same vertical line, and an automatic tool changing main shaft (30) and the semicircular tool rest (32) are matched for automatic tool changing.

5. The automobile part grinding device convenient for angle adjustment according to claim 1, wherein: clamping machine constructs (3) including fixing two slide bars (33) between installation body frame (1), respectively with two slide bar (33) sliding connection's gripper jaw (34), and gripper jaw (34) symmetry be provided with two, correspondingly install two flexible control lever two (35) at the inside both sides of installation body frame (1), two flexible control lever two (35) correspond the setting with two gripper jaw (34), and the flexible end of flexible control lever two (35) is connected in corresponding gripper jaw (34) side, the centre of a circle of the centre of centre gripping center of two gripper jaw (34) and collar (24) is on same vertical line, drive two gripper jaw (34) through two flexible control lever two (35) and move in opposite directions and carry out the clamping with part (4).

6. The automobile part grinding device convenient for angle adjustment according to claim 1, wherein: the bottom of installation body frame (1) is provided with iron fillings and collects shell (36), iron fillings are collected shell (36) appearance and are conical casing, the top mouth binding off design of shell (36) is collected to iron fillings, the bottom mounting of shell (36) is collected to iron fillings has iron fillings to collect storehouse (37), iron fillings are collected shell (36) and are wrapped up clamping mechanism (3) inside.

7. The automobile part grinding device convenient for angle adjustment according to claim 1, wherein: the side of digging arm (20) is fixed with shower nozzle (38) through the checkpost, the input of shower nozzle (38) and the output tube intercommunication of outside air supply, shower nozzle (38) are provided with two in the both sides correspondence of digging arm (20).