CN217074290U

CN217074290U - Positioning table with protection function for automobile maintenance and processing

Info

Publication number: CN217074290U
Application number: CN202220659380.XU
Authority: CN
Inventors: 赵伯鸾
Original assignee: Jiangsu Province Xuzhou Technician Institute
Current assignee: Jiangsu Province Xuzhou Technician Institute
Priority date: 2022-03-25
Filing date: 2022-03-25
Publication date: 2022-07-29
Anticipated expiration: 2032-03-25

Abstract

The utility model discloses a positioning table is used in auto repair processing with safeguard function, establish the workstation on the base including base and cover, establish to the inclined plane in the left side of workstation, two elevating system of the equal fixedly connected with in front side and the rear side of workstation, elevating system's bottom and the top fixed connection of base, the observation hole has been seted up at the top of workstation, the top right side fixedly connected with second U-shaped locating plate of workstation. The utility model discloses a first U-shaped locating plate and second U-shaped locating plate cooperate and can effectively fix a position the car, realize the purpose to the car protection, reduce the risk of car landing in the maintenance process, reduce the potential safety hazard, and through the mode of going to an allocation position automatic alarm at the car, make things convenient for personnel in time to discover, do not need personnel to watch constantly, and mode with adjustable first U-shaped locating plate position can realize fixing a position the car of different length, and the application scope is improved, and the user demand is satisfied.

Description

Positioning table with protection function for automobile maintenance and processing

Technical Field

The utility model relates to an auto repair location platform technical field especially relates to a location platform is used in auto repair processing with safeguard function.

Background

The automobile maintenance and processing is a general term of automobile maintenance and repair, namely, a fault automobile is checked by a technical means to find out a fault reason, certain measures are taken to remove the fault and recover to reach certain performance and safety standards, and a workbench is required when the automobile is maintained; the current workstation, its most lacks the function of protection, is not convenient for effectively fix a position the car when using, and current car directly parks on the workstation, has the car to rock the risk of landing in maintenance or promotion in-process, and then causes the potential safety hazard, can not satisfy the user demand, therefore we have proposed a positioning table for auto repair processing with safeguard function and have been used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a positioning table with a protection function for automobile maintenance and processing.

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

a positioning table with a protection function for automobile maintenance and processing comprises a base and a workbench sleeved on the base, wherein the left side of the workbench is arranged to be an inclined plane, two lifting mechanisms are fixedly connected to the front side and the rear side of the workbench, the bottoms of the lifting mechanisms are fixedly connected with the top of the base, an observation hole is formed in the top of the workbench, a second U-shaped positioning plate is fixedly connected to the right side of the top of the workbench, a mounting groove is formed in the right side of the workbench, a first storage battery is fixedly connected to the inner wall of the top of the mounting groove, an audible and visual alarm is fixedly and electrically connected to the right side of the first storage battery, the right side of the audible and visual alarm extends to the right side of the workbench, a first controller is fixedly and electrically connected to the bottom of the first storage battery, the first controller is electrically connected with the audible and visual alarm, a rectangular hole is formed in the left side of the top of the workbench, a first L-shaped supporting plate is sleeved in the rectangular hole in a sliding manner, the top of the first L-shaped supporting plate is flush with the top of the workbench, the right side of the first L-shaped supporting plate extends into the observation hole, the left side of the top of the base is movably contacted with a mounting box positioned in the rectangular hole, the right side of the mounting box is fixedly connected with the left side bottom of the first L-shaped supporting plate, the top of the mounting box is fixedly connected with a second L-shaped supporting plate, the top of the second L-shaped supporting plate is flush with the top of the workbench, a first thread driving mechanism is rotatably arranged on the inner wall of the top of the second L-shaped supporting plate, a first driving motor is fixedly connected with the inner wall of the top of the mounting box, the top end of an output shaft of the first driving motor is fixedly connected with the bottom end of the first thread driving mechanism, the left side of the top of the mounting box is movably contacted with a first U-shaped positioning plate, the first U-shaped positioning plate is movably sleeved on the first L-shaped supporting plate and the second L-shaped supporting plate, and trigger mechanisms are respectively embedded on the left inner wall of the first U-shaped positioning plate and the right side inner wall of the second U-shaped positioning plate, the left side inner wall bottom of first U-shaped locating plate and first screw thread actuating mechanism's left side fixed connection, the left side of mounting box is rotated and is installed second screw thread actuating mechanism, the workstation cover is established on second screw thread actuating mechanism, fixedly connected with second driving motor on the left side inner wall of mounting box, second driving motor's output shaft left end and second screw thread actuating mechanism's right-hand member fixed connection, second driving motor's fixed and electric connection in bottom has the second controller, first controller and second controller respectively with corresponding trigger mechanism electric connection.

Preferably, elevating system is including the installation piece, and one side and the workstation fixed connection that the installation piece is close to the workstation, four multistage pneumatic cylinders of top fixedly connected with of base, the output shaft top of multistage pneumatic cylinder and the bottom fixed connection of the installation piece that corresponds, workstation are located between two relative multistage pneumatic cylinders in front and back.

Preferably, the trigger mechanism includes the trigger plate, the inlay groove has all been seted up on the left side inner wall of first U-shaped locating plate and the right side inner wall of second U-shaped locating plate, the trigger plate slip cover is established in the inlay groove that corresponds, one side that two trigger plates kept away from each other bonds between the one side inner wall that is kept away from each other respectively with two inlay grooves and is fixed with the elastic cotton, it is equipped with first dab the switch to inlay on the one side inner wall that the inlay groove kept away from its open-ended, two first dab switches respectively with first controller and second controller electric connection, one side that two elastic cotton kept away from each other respectively with two first one side swing joint that dabs the switch and is close to each other.

Preferably, first screw thread actuating mechanism installs the first screw rod on second L shape backup pad top inner wall including rotating, the bottom of first screw rod extend to in the mounting box and with first driving motor's output shaft top fixed connection, the thread bush is equipped with the nut on the first screw rod, the left side of nut and the left side inner wall bottom fixed connection of first U-shaped locating plate, fixedly connected with second light touch switch on the top inner wall of second L shape backup pad, it has the third controller to embed in the first driving motor, third controller and second light touch switch electric connection.

Preferably, the second thread driving mechanism is installed at the left square rod of the installation box by rotating, the left end of the output shaft of the second driving motor is fixedly connected with the right end of the square rod, the left fixedly connected with rectangular rod of the installation box is provided with a first rectangular groove on the left inner wall of the rectangular hole, the outer side of the rectangular rod is sleeved with the first rectangular groove in a sliding manner, a second screw rod is installed on the left inner wall of the first rectangular groove by rotating, the rectangular rod is sleeved on the second screw rod in a threaded manner, and the second screw rod is sleeved on the square rod in a sliding manner.

Preferably, fixedly connected with second battery on the right side inner wall of mounting box, second battery and first driving motor and second driving motor electric connection.

Preferably, the left side of the top of the mounting box is fixedly connected with a guide rod with a rectangular structure, and the first U-shaped positioning plate is slidably sleeved on the guide rod.

Preferably, the bottom of the workbench is provided with a first groove with an opening at the right side, the front side and the rear side, and the inner wall of the first groove is in sliding contact with the outer side of the base.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a first U-shaped locating plate and second U-shaped locating plate cooperate and can effectively fix a position the car, realize the purpose to the car protection, reduce the risk of car landing in the maintenance process, reduce the potential safety hazard, and through the mode of going to an allocation position automatic alarm at the car, make things convenient for personnel in time to discover, do not need personnel to watch constantly, and mode with adjustable first U-shaped locating plate position can realize fixing a position the car of different length, and the application scope is improved, and the user demand is satisfied.

Drawings

Fig. 1 is a schematic structural view of a positioning table with a protection function for automobile maintenance and processing according to the present invention;

FIG. 2 is a schematic cross-sectional view of FIG. 1;

FIG. 3 is an enlarged schematic view of portion A of FIG. 2;

FIG. 4 is a schematic diagram of the right side view of FIG. 1;

fig. 5 is a schematic top view of the second U-shaped positioning plate of the positioning table with protection function for auto repair and processing.

In the figure: 100. a work table; 101. a base; 102. mounting blocks; 103. a multi-stage hydraulic cylinder; 104. an observation hole; 1. a second U-shaped positioning plate; 2. a trigger plate; 3. a tact switch; 4. mounting grooves; 5. an audible and visual alarm; 6. a rectangular hole; 7. a first L-shaped support plate; 8. mounting a box; 9. a guide rod; 10. a second drive motor; 11. a first U-shaped positioning plate; 12. a second L-shaped support plate; 13. a first screw; 14. a nut; 15. a first drive motor; 16. a second tact switch; 17. a rectangular bar; 18. a second screw; 19. a square bar; 20. and a second battery.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-5, a positioning table with protection function for automobile maintenance and processing comprises a base 101 and a workbench 100 sleeved on the base 101, wherein the bottom of the workbench 100 is provided with a first groove with an opening at the right side, the front side and the rear side, the inner wall of the first groove is in sliding contact with the outer side of the base 101, the bottom of the workbench 100 is flush with the bottom of the base 101, the left side of the workbench 100 is provided with an inclined surface, the front side and the rear side of the workbench 100 are both fixedly connected with two lifting mechanisms, the bottoms of the lifting mechanisms are fixedly connected with the top of the base 101, the lifting mechanisms comprise mounting blocks 102, one side of the mounting blocks 102 close to the workbench 100 is fixedly connected with the workbench 100, the top of the base 101 is fixedly connected with four multi-stage hydraulic cylinders 103, the top ends of output shafts of the multi-stage hydraulic cylinders 103 are fixedly connected with the bottoms of the corresponding mounting blocks 102, the workbench 100 is positioned between the two multi-stage hydraulic cylinders 103 which are opposite front and back, the four multi-stage hydraulic cylinders 103 are matched with the mounting block 102, so that the workbench 100 can be effectively lifted;

the top of the workbench 100 is provided with an observation hole 104, the right side of the top of the workbench 100 is fixedly connected with a second U-shaped positioning plate 1, the right side of the workbench 100 is provided with a mounting groove 4, the inner wall of the top of the mounting groove 4 is fixedly connected with a first storage battery, the right side of the first storage battery is fixedly and electrically connected with an audible and visual alarm 5, the right side of the audible and visual alarm 5 extends to the right side of the workbench 100, the bottom of the first storage battery is fixedly and electrically connected with a first controller, the first controller is electrically connected with the audible and visual alarm 5, the left side of the top of the workbench 100 is provided with a rectangular hole 6, a first L-shaped supporting plate 7 is slidably sleeved in the rectangular hole 6, the top of the first L-shaped supporting plate 7 is flush with the top of the workbench 100, the right side of the first L-shaped supporting plate 7 extends into the observation hole 104, wherein the inner wall of the left side of the observation hole 104 is provided with a reserved channel for the first L-shaped supporting plate 7 to horizontally pass through, the left side of the top of the base 101 is movably contacted with a mounting box 8 positioned in the rectangular hole 6, the right side of the mounting box 8 is fixedly connected with the bottom of the left side of a first L-shaped supporting plate 7, the top of the mounting box 8 is fixedly connected with a second L-shaped supporting plate 12, wherein the first L-shaped supporting plate 7 and the second L-shaped supporting plate 12 are arranged to effectively support an automobile in the driving process of the automobile and improve the stability in the driving process, the top of the second L-shaped supporting plate 12 is flush with the top of the workbench 100, a first thread driving mechanism is rotatably arranged on the inner wall of the top of the second L-shaped supporting plate 12, a first driving motor 15 is fixedly connected to the inner wall of the top of the mounting box 8, the top end of an output shaft of the first driving motor 15 is fixedly connected with the bottom end of the first thread driving mechanism, a first U-shaped positioning plate 11 is movably contacted with the left side of the top of the mounting box 8, the first U-shaped positioning plate 11 is movably sleeved on the first L-shaped supporting plate 7 and the second L-shaped supporting plate 12, the front side of the first L-shaped supporting plate 7 and the front side of the second L-shaped supporting plate 12 are both contacted with the inner wall of the front side of the first U-shaped positioning plate 11, the rear side of the first L-shaped supporting plate 7 and the rear side of the second L-shaped supporting plate 12 are both contacted with the inner wall of the rear side of the first U-shaped positioning plate 11, and the inner wall of the left side of the first U-shaped positioning plate 11 and the inner wall of the right side of the second U-shaped positioning plate 1 are both embedded with a trigger mechanism;

the trigger mechanism comprises trigger plates 2, embedded grooves are formed in the left inner wall of a first U-shaped positioning plate 11 and the right inner wall of a second U-shaped positioning plate 1, the trigger plates 2 are sleeved in the corresponding embedded grooves in a sliding mode, elastic cotton is fixedly bonded between the side, away from each other, of each of the two trigger plates 2 and the inner wall of the side, away from each other, of each of the two embedded grooves, a first light touch switch 3 is embedded in the inner wall of the side, away from the opening, of each embedded groove, one side, away from the opening, of each elastic cotton is in movable contact with the side, close to each other, of each first light touch switch 3, a mounting groove is formed in the inner wall of the side, away from the opening, of each embedded groove, and the inner wall of each mounting groove is fixedly connected with the outer side of the corresponding first light touch switch 3;

the bottom of the inner wall of the left side of the first U-shaped positioning plate 11 is fixedly connected with the left side of the first thread driving mechanism, the left side of the mounting box 8 is rotatably provided with a second thread driving mechanism, the workbench 100 is sleeved on the second thread driving mechanism, the inner wall of the left side of the mounting box 8 is fixedly connected with a second driving motor 10, the left end of an output shaft of the second driving motor 10 is fixedly connected with the right end of the second thread driving mechanism, the bottom of the second driving motor 10 is fixed and electrically connected with a second controller, the first controller and the second controller are respectively electrically connected with corresponding first tact switches 3, wherein the first tact switch 3 on the right side is electrically connected with the first controller, and the first tact switch 3 on the left side is electrically connected with the second controller;

the first thread driving mechanism comprises a first screw 13 rotatably mounted on the inner wall of the top of the second L-shaped support plate 12, wherein a rotating groove is formed on the inner wall of the top of the second L-shaped support plate 12, a first bearing is fixedly sleeved in the rotating groove, a first circular hole is formed in the inner wall of the top of the mounting box 8, a second bearing is fixedly sleeved in the first circular hole, an inner ring of the first bearing and an inner ring of the second bearing are fixedly sleeved with the outer side of the first screw 13, the bottom end of the first screw 13 extends into the mounting box 8 and is fixedly connected with the top end of an output shaft of a first driving motor 15, a nut 14 is screwed on the first screw 13, wherein the first screw 13 and the nut are matched to realize the purpose of thread driving, the left side of the nut 14 is fixedly connected with the bottom of the inner wall of the left side of the first U-shaped positioning plate 11, and a second light touch switch 16 is fixedly connected on the inner wall of the top of the second L-shaped support plate 12, a third controller is arranged in the first driving motor 15 and electrically connected with the second light touch switch 16;

the second thread driving mechanism comprises a square rod 19 which is rotatably arranged on the left side of the mounting box 8, the left end of the output shaft of the second driving motor 10 is fixedly connected with the right end of the square rod 19, the left side of the mounting box 8 is fixedly connected with a rectangular rod 17, the left side inner wall of the rectangular hole 6 is provided with a first rectangular groove, the outer side of the rectangular rod 17 is slidably sleeved with the first rectangular groove, the left side inner wall of the first rectangular groove is rotatably provided with a second screw 18, wherein the left side inner wall of the first rectangular groove is fixedly provided with a third bearing which is fixedly sleeved with the outer side of the second screw 18, the rectangular rod 17 is in threaded sleeve connection with the second screw 18, the left end of the rectangular rod 17 is provided with a threaded hole, the threaded hole is in threaded connection with the second screw 18, the second screw 18 is in sliding sleeve connection with the square rod 19, the right end of the second screw 18 is provided with a square hole, and the inner wall of the square hole is slidably connected with the outer side of the square rod 19, the square hole and the square rod 19 are arranged and can drive the second screw rod 18 to rotate;

a second storage battery 20 is fixedly connected to the inner wall of the right side of the mounting box 8, the second storage battery 20 is electrically connected with the first driving motor 15 and the second driving motor 10, and the second storage battery 20 supplies power to the first driving motor 15 and the second driving motor 10;

the left side of the top of the mounting box 8 is fixedly connected with a guide rod 9 with a rectangular structure, a first U-shaped positioning plate 11 is sleeved on the guide rod 9 in a sliding way, wherein the bottom of the first U-shaped positioning plate 11 is provided with a second rectangular groove, the inner wall of the second rectangular groove is connected with the outer side of the guide rod 9 in a sliding way, and the guide rod 9 plays a role in positioning the first U-shaped positioning plate 11. the utility model can effectively position the automobile by matching the first U-shaped positioning plate 11 with the second U-shaped positioning plate 1, realizes the purpose of protecting the automobile, reduces the risk of automobile falling in the maintenance process, reduces the potential safety hazard, and can realize the positioning of the automobiles with different lengths by an automatic alarm mode when the automobile runs to a certain position, thereby facilitating the timely discovery of personnel, not needing to watch constantly by the personnel, and improving the application range by an adjustable mode of the position of the first U-shaped positioning plate 11, the use requirement is met.

The working principle is as follows: when the automobile maintenance reminding device is used, an automobile needing to be maintained and processed runs to the top of the workbench 100 along the inclined surface of the workbench 100, when a front wheel of the automobile moves forwards to be in contact with the trigger plate 2 on the right side, the front wheel of the automobile extrudes the trigger plate 2 on the right side to move rightwards, the trigger plate 2 on the right side extrudes the first tact switch 3 on the right side through corresponding elastic cotton, the extruding force triggers the first tact switch 3 on the right side to be started, the first tact switch 3 on the right side transmits a signal to the first controller, the first controller controls the audible and visual alarm 5 to be started, the audible and visual alarm 5 gives out audible and visual alarm reminding personnel, and the personnel can stop moving the automobile after hearing the sound;

then the first driving motor 15 is started in the forward direction, the output shaft of the first driving motor 15 drives the first screw 13 to rotate, the first screw 13 rotates in the nut 14 and drives the nut 14 to move upwards, the nut 14 drives the first U-shaped positioning plate 11 to move upwards, the first U-shaped positioning plate 11 slides upwards on the guide rod 9, the nut 14 moves upwards to contact with the second tact switch 16, the second tact switch 16 is triggered to be started, the second tact switch 16 transmits a signal to the third controller, the third controller controls the first driving motor 15 to be switched off, the first U-shaped positioning plate 11 moves to the upper part of the workbench 100, then the second driving motor 10 is started in the forward direction, the output shaft of the second driving motor 10 drives the square rod 19 to rotate, the square rod 19 drives the second screw 18 to rotate, the second screw 18 rotates in the rectangular rod 17 and drives the rectangular rod 17 to move rightwards, the rectangular rod 17 drives the mounting box 8 to move rightwards, the mounting box 8 drives the first U-shaped positioning plate 11, the first L-shaped supporting plate 7 and the second L-shaped supporting plate 12 to move rightwards, the first U-shaped positioning plate 11 drives the left trigger plate 2 to move rightwards until the left trigger plate 2 is contacted with the rear wheel of the automobile, the left trigger plate 2 is limited to continue moving, the first U-shaped positioning plate 11 continues moving rightwards and drives the left first tact switch 3 to extrude the elastic cotton rightwards, the left first tact switch 3 is triggered to be turned on under the reaction force of extrusion, the left first tact switch 3 transmits a signal to the second controller, the second controller controls the second driving motor 10 to be turned off, at the moment, the first U-shaped positioning plate 11 and the second U-shaped positioning plate 1 are matched to effectively position the automobile, the aim of protecting the automobile is achieved, and the risk of sliding of the automobile in the maintenance process is reduced, the potential safety hazard is reduced, and through the mode of automatically alarming when the automobile runs to a certain position, the automobile can be found in time conveniently by personnel, the personnel are not required to watch the automobile all the time, and the position of the first U-shaped positioning plate 11 can be adjusted, so that the automobiles with different lengths can be positioned, and the application range is improved;

when the automobile is lifted, the four multi-stage hydraulic cylinders 103 are started in the forward direction, the output shafts of the multi-stage hydraulic cylinders 103 drive the workbench 100 to move upwards through the mounting blocks 102, the workbench 100 drives the automobile to move upwards, the automobile can be lifted, and when the automobile is maintained, a person can check and maintain the bottom of the automobile through the observation holes 104.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a positioning table for auto repair processing with safeguard function, including base (101) and cover workstation (100) on base (101), a serial communication port, the left side of workstation (100) is established to the inclined plane, the equal fixedly connected with two elevating system of front side and rear side of workstation (100), elevating system's bottom and the top fixed connection of base (101), observation hole (104) have been seted up at the top of workstation (100), the top right side fixedly connected with second U-shaped locating plate (1) of workstation (100), mounting groove (4) have been seted up on the right side of workstation (100), fixedly connected with first battery on the top inner wall of mounting groove (4), the right side of first battery is fixed and electrically connected with audible-visual annunciator (5), the right side of audible-visual annunciator (5) extends to the right side of workstation (100), the bottom of first battery is fixed and electrically connected with first controller, the first controller is electrically connected with the audible and visual alarm (5), a rectangular hole (6) is formed in the left side of the top of the workbench (100), a first L-shaped supporting plate (7) is sleeved in the rectangular hole (6) in a sliding mode, the top of the first L-shaped supporting plate (7) is flush with the top of the workbench (100), the right side of the first L-shaped supporting plate (7) extends into the observation hole (104), a mounting box (8) located in the rectangular hole (6) is movably contacted with the left side of the top of the base (101), the right side of the mounting box (8) is fixedly connected with the bottom of the left side of the first L-shaped supporting plate (7), a second L-shaped supporting plate (12) is fixedly connected with the top of the mounting box (8), the top of the second L-shaped supporting plate (12) is flush with the top of the workbench (100), a first thread driving mechanism is rotatably installed on the inner wall of the top of the second L-shaped supporting plate (12), a first driving motor (15) is fixedly connected with the inner wall of the top of the mounting box (8), the top end of an output shaft of a first driving motor (15) is fixedly connected with the bottom end of a first thread driving mechanism, the left side of the top of a mounting box (8) is movably contacted with a first U-shaped positioning plate (11), the first U-shaped positioning plate (11) is movably sleeved on a first L-shaped supporting plate (7) and a second L-shaped supporting plate (12), the left inner wall of the first U-shaped positioning plate (11) and the right inner wall of the second U-shaped positioning plate (1) are respectively embedded with a trigger mechanism, the bottom of the left inner wall of the first U-shaped positioning plate (11) is fixedly connected with the left side of the first thread driving mechanism, the left side of the mounting box (8) is rotatably provided with a second thread driving mechanism, a workbench (100) is sleeved on the second thread driving mechanism, the left inner wall of the mounting box (8) is fixedly connected with a second driving motor (10), the left end of the output shaft of the second driving motor (10) is fixedly connected with the right end of the second thread driving mechanism, the bottom of the second driving motor (10) is fixed and electrically connected with a second controller, and the first controller and the second controller are respectively and electrically connected with the corresponding trigger mechanisms.

2. The positioning table with the protection function for automobile maintenance and processing as claimed in claim 1, wherein the lifting mechanism comprises a mounting block (102), one side of the mounting block (102) close to the workbench (100) is fixedly connected with the workbench (100), the top of the base (101) is fixedly connected with four multi-stage hydraulic cylinders (103), the top ends of output shafts of the multi-stage hydraulic cylinders (103) are fixedly connected with the bottom of the corresponding mounting block (102), and the workbench (100) is located between the two multi-stage hydraulic cylinders (103) which are opposite in the front and back.

3. The positioning table with the protection function for the maintenance and the processing of the automobile is characterized in that the trigger mechanism comprises trigger plates (2), embedded grooves are formed in the inner walls of the left side of the first U-shaped positioning plate (11) and the inner wall of the right side of the second U-shaped positioning plate (1), the trigger plates (2) are sleeved in the corresponding embedded grooves in a sliding mode, elastic cotton is fixedly bonded between the side, away from each other, of the two trigger plates (2) and the inner wall, away from each other, of the two embedded grooves, first tact switches (3) are embedded in the inner wall, away from the opening, of the embedded groove, the two first tact switches (3) are electrically connected with the first controller and the second controller respectively, and the side, away from each other, of the two elastic cotton is in movable contact with the side, close to each other, of the two first tact switches (3).

4. The positioning table with the protection function for automobile maintenance and processing as claimed in claim 1, wherein the first thread driving mechanism comprises a first screw (13) rotatably mounted on the inner wall of the top of the second L-shaped support plate (12), the bottom end of the first screw (13) extends into the mounting box (8) and is fixedly connected with the top end of the output shaft of the first driving motor (15), a nut (14) is sleeved on the first screw (13) in a threaded manner, the left side of the nut (14) is fixedly connected with the bottom of the inner wall of the left side of the first U-shaped positioning plate (11), a second light touch switch (16) is fixedly connected to the inner wall of the top of the second L-shaped support plate (12), a third controller is arranged in the first driving motor (15), and the third controller is electrically connected with the second light touch switch (16).

5. The positioning table with the protection function for automobile maintenance and processing as claimed in claim 1, wherein the second thread driving mechanism comprises a square rod (19) rotatably mounted on the left side of the mounting box (8), the left end of an output shaft of the second driving motor (10) is fixedly connected with the right end of the square rod (19), a rectangular rod (17) is fixedly connected to the left side of the mounting box (8), a first rectangular groove is formed in the inner wall of the left side of the rectangular hole (6), the outer side of the rectangular rod (17) is slidably sleeved with the first rectangular groove, a second screw (18) is rotatably mounted on the inner wall of the left side of the first rectangular groove, the rectangular rod (17) is threadedly sleeved on the second screw (18), and the second screw (18) is slidably sleeved on the square rod (19).

6. The positioning table with the protection function for the automobile maintenance and processing as claimed in claim 1, wherein a second storage battery (20) is fixedly connected to the inner wall of the right side of the mounting box (8), and the second storage battery (20) is electrically connected with the first driving motor (15) and the second driving motor (10).

7. The positioning table with the protection function for the automobile maintenance and processing as claimed in claim 1, wherein a guide rod (9) with a rectangular structure is fixedly connected to the left side of the top of the mounting box (8), and the first U-shaped positioning plate (11) is slidably sleeved on the guide rod (9).

8. The positioning table with the protection function for the automobile maintenance and processing as claimed in claim 1, wherein a first groove with an opening at the right side, the front side and the rear side is formed at the bottom of the workbench (100), and the inner wall of the first groove is in sliding contact with the outer side of the base (101).