CN114194733A

CN114194733A - Mechanical conveying device for coating production of vehicle bodies

Info

Publication number: CN114194733A
Application number: CN202010910661.3A
Authority: CN
Inventors: 沈迪; 陈健; 陈清; 陈俊奇
Original assignee: Shanghai Institute of Electromechanical Engineering
Current assignee: Shanghai Institute of Electromechanical Engineering
Priority date: 2020-09-02
Filing date: 2020-09-02
Publication date: 2022-03-18
Anticipated expiration: 2040-09-02

Abstract

The invention discloses a mechanical conveying device for coating production of a vehicle body, which comprises a sliding block control assembly, a push rod (4), a first push head (5), a sliding block (6) and a second push head (7); the push rod is movably arranged on the movable flat car (1) and moves between the movable flat car and the station (9); the sliding block control assembly is arranged on the movable flat car and drives the sliding block arranged on the push rod to slide, the first push head and the second push head are rotatably arranged on the push rod, the first push head and the second push head are oppositely arranged on two sides of the sliding block, and when the sliding block slides, one of the push heads can be supported and the other end of the push head can be tilted; the carrier vehicle (8) is provided with a limit structure which is matched and abutted with the tilting end of the push head, so that the carrier vehicle and the push rod are limited in a single direction and move synchronously. The invention can realize the moving and conveying of the carrier vehicle between the station and the moving flat car through the automatic switching of the mechanical pushing head without a manpower cart, thereby effectively balancing the factors in the aspects of human resources, labor intensity, capital investment and the like.

Description

Mechanical conveying device for coating production of vehicle bodies

Technical Field

The invention relates to automobile coating production equipment, in particular to a mechanical conveying device for coating production of an automobile body.

Background

In the coating production process of a motor coach, a motor coach body needs to be conveyed between different stations, different stations have a series of different requirements such as explosion resistance, temperature resistance, dust prevention and the like according to the difference of operation properties, and the conveying form also has different options according to the difference of yield. At present, a better solution is to use a skid to carry a bus body and then transport the bus body through conveying equipment such as a rolling bed, a transfer machine and the like, although the transportation mode is mature and reliable, the equipment structure is complex and the investment is large, certain requirements are required for capital construction, and for small-scale passenger car factories, high capital construction and equipment investment cannot be borne mostly.

Therefore, most passenger car factories generally adopt the unpowered trolley to bear the body at present, the body conveying among different stations is realized by manually pushing the body to enable the unpowered trolley to move forward, the labor intensity requirement on operators is high, the self weight of the motor coach is usually more than 5 tons according to different configurations and production states, the weight of part of the motor coach with more equipment can reach more than 10 tons, and the pushing of the unpowered trolley bearing 5 tons of bodies needs more than 5 persons at least, the labor cost is high, and the efficiency is low.

The Chinese patent application CN201910528725.0 discloses a vertical chain conveying system of a coating production line, which comprises a conveying slide rail and a conveying trolley sliding on the conveying slide rail, wherein a chain transmission mechanism is arranged on one side outside the conveying slide rail, and the conveying trolley is dragged to move by the vertically arranged chain transmission mechanism. The vertical chain conveying system is complex in structure, and the operation of the chain transmission mechanism needs to be controlled through the electric control equipment, so that the movement of the vehicle body among stations is driven, but capital investment of capital construction and equipment is large, and the vertical chain conveying system cannot be suitable for small and medium-scale automobile manufacturers, particularly manufacturers for producing large-scale vehicles such as passenger cars and the like.

Disclosure of Invention

The invention aims to provide a mechanical conveying device for coating production of a vehicle body, which can realize the moving conveying of a carrier vehicle between a station and a moving flat vehicle through the automatic switching of a mechanical pushing head, does not need a manual cart, and effectively balances the factors in the aspects of human resources, labor intensity, capital investment and the like.

The invention is realized by the following steps:

a mechanical conveying device for coating production of vehicle bodies comprises a moving flat car reciprocating between different stations and a carrier car used for carrying the vehicle bodies and loaded on the moving flat car, wherein the carrier car and the moving flat car synchronously move and can transport the vehicle bodies between the stations and the moving flat car;

the mechanical conveying device also comprises a sliding block control assembly, a push rod, a first push head, a sliding block and a second push head; the push rod is movably arranged on the movable flat carriage and can move between the movable flat carriage and the station; the sliding block control assembly is fixedly arranged on the movable flat car, the sliding block is arranged on the push rod in a sliding mode, and the sliding block control assembly is movably connected with the sliding block and can drive the sliding block to slide along the length direction of the push rod; the first pushing head and the second pushing head are respectively arranged on the push rod in a rotatable mode, and the first pushing head and the second pushing head are oppositely arranged on two sides of the sliding block, so that the sliding block can be supported at the bottom of one end of one pushing head when sliding, and the other end of the pushing head is tilted; the push rod is positioned below the bottom of the carrier vehicle, and a limiting structure which can be matched and abutted with the tilting end of the push head is formed on the carrier vehicle, so that the carrier vehicle and the push rod can perform unidirectional limiting and synchronous motion.

The pushing head comprises a pushing head main body, a fixing piece, a rotating piece and a limiting piece; the push head main body is a V-shaped structure formed by connecting a limiting part and a butting part, and the middle bending part of the push head main body is arranged on the fixed part through the rotating part, so that the push head main body can rotate around the rotating part; the fixing piece is fixedly arranged on the push rod, so that the push head and the push rod can move synchronously; the locating part sets up in spacing portion, and when the push head main part rotated, the locating part can laminate on the surface of push rod, can contact with the limit structure on the carrier car after making conflict portion perk.

Spacing portion and conflict portion between form the obtuse angle contained angle, and the length of spacing portion is less than the length of conflict portion, the perk height that makes conflict portion rotate after is higher than spacing portion rotate.

The push head main body is provided with a plurality of blocks, and a balancing weight is arranged between the limiting parts of two adjacent push head main bodies, so that the gravity of the limiting part side of the push head main body is larger than the gravity of the contact part side, and a gravity center offset structure is formed.

The push rod on be formed with the spout, the spout is located between first pushing head and the second pushing head, the slider can match to be installed on the spout and slide between first pushing head and second pushing head along the spout through slider control assembly.

The top both sides of slider be the wedge face, the balancing weight of first pushing head sets up in the both sides of slider with the balancing weight of second pushing head relatively, makes the wedge face of slider can support in the balancing weight bottom of one of them pushing head, makes the equal perk of spacing portion and the conflict portion of this pushing head in the top of push rod.

The limiting structures are baffle plates arranged at two ends of the bottom of the carrier vehicle, and the lower ends of the baffle plates are lower than the maximum tilting height of the abutting parts and higher than the locking height of the pushing head; the maximum tilting height of the interference part is as follows: when the limiting piece of one of the pushing heads is attached to the surface of the push rod, the height of the upper end of the abutting part of the pushing head is high; the locking height of the push head is as follows: when the sliding block is supported at the bottom of the balancing weight of the other pushing head, the upper end of the limiting part and the upper end of the abutting part of the pushing head are high.

The sliding block control assembly comprises a shifting fork and a connecting rod; a connecting groove is formed in the shifting fork, and a shifting lug capable of being movably inserted into the connecting groove is formed at the bottom of the sliding block; one end of each of the pair of connecting rods is rotatably connected to a connecting rod seat fixed on the movable flat car, the other end of each of the pair of connecting rods is rotatably connected to the bottom of the shifting fork, and the pair of connecting rods are parallel to each other and rotate synchronously, so that the shifting fork performs arc motion and can drive the sliding block (6) to horizontally move between the first pushing head and the second pushing head.

One of the connecting rods is arranged on the connecting rod seat through a key shaft, the other connecting rod is arranged on the connecting rod seat through a driving gear through the key shaft, and the driving gear is externally connected with a power source.

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

1. according to the invention, the first pushing head and the second pushing head are switched according to the moving direction of the vehicle body, so that the separation and the limiting with the carrier vehicle are realized, the carrier vehicle is synchronously pushed to move and transport between the station and the moving flat vehicle through the push rod, the physical consumption and the labor cost of the manual cart in the moving process are avoided, the moving track in the process is safe and controllable, and the production efficiency is improved.

2. According to the invention, the sliding block is shifted by the shifting fork through the link mechanism, so that the sliding block supports and locks the first pushing head or the second pushing head, the switching between the two pushing heads can be realized through smaller power, and then larger push-pull force is output to the carrier vehicle and the passenger car through the pushing heads, so that the assistance to the bidirectional movement of the carrier vehicle is ensured, and the pushing head switching mode is convenient and flexible.

3. The push head of the invention adopts a mechanical structure with offset gravity center, the push head of the bending structure can realize rotation and automatic reset through the rotating piece, and is matched with the baffle of the carrier vehicle, so that the one-way push-pull function of the carrier vehicle is realized, the control precision requirement on a control system is reduced, and the production requirements of explosion prevention, high temperature resistance, dust resistance and the like in different procedures can be met.

4. The invention does not need to transform the existing production line equipment, can flexibly configure the size and the number according to the production requirement, avoids the low-efficiency operation mode of the existing manpower cart for medium and small production enterprises and the potential safety hazard of personnel entering stations, and also solves the transportation problem of large and heavy vehicles such as passenger cars; after the one-way push-pull transportation of one vehicle body is finished, the other vehicle bodies can be transported, the vehicle body conveying efficiency and the utilization rate of the movable flat wagon are greatly improved, and the equipment investment and the capital construction investment of the movable flat wagon are reduced.

The invention can realize the moving and conveying of the carrier vehicle between the station and the moving flat vehicle through the automatic switching of the mechanical pushing head, does not need a manual cart, does not need to modify the existing station, the moving flat vehicle, the carrier vehicle and other equipment, effectively balances the factors in the aspects of human resources, labor intensity, capital investment and the like on the basis of improving the production efficiency, and is particularly suitable for the production and application of small and medium-sized production enterprises and large vehicles.

Drawings

FIG. 1 is a front view of the mechanical conveyor for vehicle body paint production of the present invention;

FIG. 2 is an assembly view of the mechanical conveyor for vehicle body painting production of the present invention;

FIG. 3 is a schematic structural diagram of a push head in the mechanical conveying device for vehicle body coating production of the invention;

FIG. 4 is a diagram of the working state of the push rod moving rightwards into the bottom of the carrier vehicle in the mechanical conveying device for the coating production of the vehicle body;

FIG. 5 is a working state diagram of the push rod pushing the carrier vehicle to move to a working position in the mechanical conveying device for coating production of the vehicle body;

FIG. 6 is a diagram of the working state of the push rod moving out of the carrier vehicle to the right in the mechanical conveying device for the coating production of the vehicle body;

FIG. 7 is a view showing the operation state that the push rod is rightwards separated from the carrier vehicle in the mechanical conveying device for the coating production of the vehicle body;

FIG. 8 is a state diagram of the slide block in the mechanical conveying device for coating production of vehicle bodies, which is switched from the second push head to the first push head;

FIG. 9 is a view showing the operation of the mechanical transfer device for coating automobile bodies according to the present invention, in which the push rod is moved leftwards into the bottom of the carrier vehicle;

FIG. 10 is a diagram of the working state of the push rod pushing carrier vehicle to move to the moving flat vehicle in the mechanical conveying device for coating production of vehicle bodies;

FIG. 11 is a view showing the operation of the carrier vehicle with the push rod moved out to the left in the mechanical transport device for coating production of vehicle bodies according to the present invention;

FIG. 12 is a schematic structural diagram of a slide block control assembly in the mechanical conveying device for coating production of vehicle bodies;

FIG. 13 is a diagram of the operating state of the slide block control assembly (the slide block jacks up the first push head) in the mechanical conveying device for coating production of the vehicle body;

FIG. 14 is a diagram of the operating state of the slide block control assembly in the mechanical conveying device for coating production of vehicle bodies (the slide block is located at the middle position);

fig. 15 is a working state diagram of the slide block control assembly (the slide block jacks up the second push head) in the mechanical conveying device for coating production of the vehicle body.

In the figure, 1 moving flatcar, 2 shifting forks, 21 connecting grooves, 3 connecting rods, 31 connecting rod seats, 4 push rods, 41 sliding grooves, 5 first pushing heads, 6 sliding blocks, 61 shifting lugs, 7 second pushing heads, 8 piece carrying cars, 81 baffle plates, 9 stations, 101 pushing head main bodies, 1011 limiting parts, 1012 abutting parts, 102 fixing parts, 103 rotating parts, 104 limiting parts, 105 balancing weights and 11 driving gears.

Detailed Description

The invention is further described with reference to the following figures and specific examples.

Referring to fig. 1 and 2, a mechanical conveying device for coating production of a vehicle body comprises a moving flat car 1, a slide block control assembly, a push rod 4, a first push head 5, a slide block 6, a second push head 7 and a carrier car 8; the movable flat carriage 1 moves back and forth between different stations 9, and the push rod 4 is movably arranged on the movable flat carriage 1 and can move between the movable flat carriage 1 and the stations 9; the sliding block control assembly is fixedly arranged on the movable flat car 1, the sliding block 6 is arranged on the push rod 4 in a sliding mode, and the sliding block control assembly is movably connected with the sliding block 6 and can drive the sliding block 6 to slide along the length direction of the push rod 4; the first pushing head 5 and the second pushing head 7 are respectively arranged on the push rod 4 in a rotatable manner, and the first pushing head 5 and the second pushing head 7 are oppositely arranged on two sides of the sliding block 6, so that the sliding block 6 can be supported at the bottom of one end of one of the pushing heads (namely the first pushing head 5 or the second pushing head 7) when sliding, and the other end of the pushing head is tilted; a carrier car 8 for bearing the automobile body loads on removing flatcar 1 and can slide between removing flatcar 1 and station 9, and push rod 4 is located carrier car 8's vehicle bottom below, is formed with the limit structure that can cooperate the conflict with the perk end of this pushing head on the carrier car 8, makes carrier car 8 can be spacing and synchronous motion with push rod 4 folk prescription.

The first pushing head 5 and the second pushing head 7 have the same structure and the same working principle but are installed in opposite directions, so that the structure of only one of the pushing heads will be further described here. Referring to fig. 3, the pushing head (i.e. the first pushing head 5 or the second pushing head 7) includes a pushing head main body 101, a fixing member 102, a rotating member 103 and a limiting member 104; the pushing head main body 101 is a V-shaped structure formed by connecting a limiting part 1011 and a collision part 1012, and the middle bending part of the pushing head main body 101 is installed on the fixed part 102 through the rotating part 103, so that the pushing head main body 101 can rotate around the rotating part 103; the fixing piece 102 is fixedly arranged on the push rod 4, so that the push head and the push rod 4 can move synchronously; the limiting member 104 is disposed on the limiting portion 1011, and when the pushing head main body 101 rotates, the limiting member 104 can be attached to the surface of the pushing rod 4, so that the abutting portion 1012 can contact with the limiting structure on the carriage 8 after tilting. With the rotation of the pushing head main body 101 around the rotating part 103, the abutting part 1012 can be matched with the limiting structure on the carrier vehicle 8 for limiting, so that the carrier vehicle 8 can be pushed to move synchronously when the push rod 4 moves.

Spacing portion 1011 and conflict portion 1012 between form the obtuse angle contained angle, and spacing portion 1011's length is less than conflict portion 1012's length to the perk height that makes conflict portion 1012 rotate back is higher than spacing portion 1011 and rotates the perk height of back, when guaranteeing push rod 4 and carrier car 8 relative movement, conflict portion 1012 can push up tightly on the limit structure on carrier car 8.

The push head main body 101 is provided with a plurality of blocks, and the balancing weight 105 is arranged between the limiting parts 1011 of two adjacent push head main bodies 101, so that the gravity of the limiting part side of the push head main body 101 is larger than the gravity of the collision part side, a gravity center offset structure is formed, and the automatic reset of the push head main body 101 after rotating around the rotating part 103 is realized.

Referring to fig. 12, a sliding groove 41 is formed on the push rod 4, the sliding groove 41 is located between the first pushing head 5 and the second pushing head 7, the sliding block 6 can be mounted on the sliding groove 41 in a matching manner and can slide between the first pushing head 5 and the second pushing head 7 along the sliding groove 41 through a sliding block control assembly, and the sliding groove 41 can limit the movement track of the sliding block 6, that is, the sliding block 6 is limited to only horizontally move along the sliding groove 41, so that the sliding block can jack up the first pushing head 5 or the second pushing head 7.

The top both sides of slider 6 be the wedge face, balancing weight 105 of first pushing head 5 and balancing weight 105 of second pushing head 7 set up in the both sides of slider 6 relatively, make the wedge face of slider 6 support in balancing weight 105 bottom of one of them pushing head (being first pushing head 5 or second pushing head 7), make spacing portion 1011 and the conflict portion 1012 of this pushing head all stick up in the top of push rod 4, simultaneously, under the action of gravity of balancing weight 105, realize the auto-lock through frictional force between slider 6 and the push rod 4, thereby make this pushing head locking on push rod 4, slider 6, can keep relative stillness between pushing head and the push rod 4, be convenient for to the use and the switching control of first pushing head 5 and second pushing head 7.

The limiting structures are baffle plates 81 arranged at two ends of the bottom of the carrier vehicle 8, and the lower ends of the baffle plates 81 are lower than the maximum tilting height of the contact parts 1012 and higher than the locking height of the pushing heads; the maximum tilting height of the interference part 1012 is as follows: when the limiting piece 104 of one of the pushing heads is attached to the surface of the pushing rod 4, the height of the upper end of the abutting part 1012 of the pushing head is high; the locking height of the push head is as follows: when the slide block 6 is supported at the bottom of the counterweight 105 of another pushing head, the upper ends of the limiting part 1011 and the abutting part 1012 of the pushing head are high. When one of the pushing heads is matched with the baffle plate 81 for use, the other pushing head is locked to avoid interference with the baffle plate 81.

Referring to fig. 12, the slide control assembly includes a fork 2 and a rod 3; a connecting groove 21 is formed in the shifting fork 2, and a shifting lug 61 which can be movably inserted into the connecting groove 21 is formed at the bottom of the sliding block 6; one end of each of the pair of connecting rods 3 is rotatably connected to a connecting rod seat 31 fixed on the movable flat car 1, the other end of each of the pair of connecting rods 3 is rotatably connected to the bottom of the shifting fork 2, and the pair of connecting rods 3 are parallel to each other and synchronously rotate, so that the shifting fork 2 performs arc motion and can drive the sliding block 6 to horizontally move between the first pushing head 5 and the second pushing head 7. The movement track of the upper end is a circular arc when the connecting rod 3 rotates, so that the shifting fork 2 can be driven to move up and down and horizontally; referring to fig. 13, when the connecting rod 3 rotates clockwise from the left side to the right side, the toggle protrusion 61 can be inserted into the connecting groove 21 during the upward and rightward movement of the shift fork 2, as shown in fig. 14, so that the shift fork 2 can drive the sliding block 6 to move rightward synchronously, and during the downward and rightward movement of the shift fork 2, the connecting groove 21 is separated from the toggle protrusion 61, as shown in fig. 15, so that the sliding block 6 does not move synchronously with the shift fork 2 any more, and the switching control of the sliding block 6 from the first pushing head 5 to the second pushing head 7 is realized. In a similar way, when the connecting rod 3 rotates from the right side to the left side in a counterclockwise manner, the shifting fork 2 drives the sliding block 6 to switch from the second pushing head 7 to the first pushing head 5.

One of the connecting rods 3 is mounted on the connecting rod seat 31 through a key shaft, the other connecting rod 3 is mounted on the connecting rod seat 31 through the key shaft through the driving gear 11, the driving gear 11 is externally connected with a power source, the driving gear 11 drives one of the connecting rods 3 to rotate through power provided by the power source, and corresponding actions of the other connecting rod 3 and the other shifting fork 2 are realized through a parallelogram structure formed by the shifting fork 2, the pair of connecting rods 3 and the connecting rod seat 31. Preferably, the push rod 4 can be formed by connecting a plurality of guide rails arranged in parallel, and the push rod 4 is provided with power equipment (such as a motor and the like) and a moving wheel, so that the push rod can move on the moving flat car 1 and the station 9. The push head main body 101 can rotate between two adjacent guide rails, and contact type limiting is realized between the limiting part 104 protruding on the limiting part 1011 and the surface of the guide rail.

Preferably, the rotating member 103 may adopt a rotating shaft and a bearing structure thereof, so as to ensure that the pushing head main body 101 can smoothly rotate around the rotating member 103; the pusher body 101 may be made of cast iron or the like, and the limiting portion 1011 and the abutting portion 1012 may be integrally forged and formed, so as to have high rigidity, thereby ensuring reliable abutting and synchronous pushing of the carriage 8 carrying the car body.

Preferably, the carrier vehicle 8 and the movable flat car 1 can adopt a flat car type with movable wheels in the prior art to bear a car body, the carrier vehicle 8 and the movable flat car 1 can be matched with a track to realize track-controllable movement and transportation, and the movable flat car 1 can be integrated with power equipment of a connecting rod 3 and a push rod 4, so that power output and an external power supply are facilitated.

The working principle of the invention is as follows:

referring to fig. 2, the moving flat car 1 moves to the right side of the working position 9, the first pushing head 5 and the second pushing head 7 are positioned on the left side of the carrier car 8, the carrier car 8 is used for carrying the car bodies to be coated and produced, and the carrier car 8 needs to move from the moving flat car 1 to the working position 9.

Referring to fig. 3 and 4, the sliding block 6 slides along the sliding slot 41 to the lower side of the counterweight 105 of the second pushing head 7 through the power connecting rod 3 via the shifting fork 2, so that the second pushing head 7 is locked, that is, the limiting portion 1011 and the abutting portion 1012 of the second pushing head 7 are tilted above the push rod 4; the push rod 4 with power and a pulley moves rightwards along the moving platform wagon 1, and the second push head 7 moves into the bottom of the carrier wagon 8 while the push rod 4 moves because the locking height of the locked second push head 7 is lower than the lower end of the baffle 81 on the left side.

Under the action of the gravity of the counterweight block 105, the limiting part 1011 of the first pushing head 5 is attached to the push rod 4, so that the limiting part 1011 of the first pushing head 5 smoothly enters the bottom of the carrier vehicle 8, the collision part 1012 of the first pushing head 5 rotates anticlockwise around the rotating part 103 under the interference of the baffle 81 on the left side, and the collision part 1012 of the first pushing head 5 also smoothly enters the bottom of the carrier vehicle 8 after being pressed downwards; when the abutting part 1012 of the first pushing head 5 moves to the inner side of the left baffle 81, the pushing rod 4 stops moving to the right, and at this time, the first pushing head 5 rotates clockwise under the action of the counterweight 105 to reset, so that the upper end of the abutting part 1012 of the first pushing head 5 is higher than the lower end of the left baffle 81.

Referring to fig. 3 and 5, the push rod 4 is controlled to move leftwards, because the upper end of the collision part 1012 of the first push head 5 collides with the baffle 81 on the left side, the push rod 4 pushes the carrier vehicle 8 to move synchronously when moving leftwards, and the push rod 4 stops moving after moving leftwards until the carrier vehicle 8 is located at the designated position of the station 9.

Referring to fig. 3, 6 and 7, the control push rod 4 moves rightwards again, at this time, the interference part 1012 of the first push head 5 is separated from the baffle 81 on the left side, and the carrier vehicle 8 stays on the station 9. Because the second pushing head 7 is supported and locked, the second pushing head 7 can smoothly pass through the baffle 81 on the right side of the carrier vehicle 8 when moving rightwards along with the push rod 4, the limiting part 1011 of the first pushing head 5 also smoothly passes through the baffle 81 on the right side under the action of gravity of the counterweight block 105, the collision part 1012 of the first pushing head 5 rotates anticlockwise around the rotating part 103 under the interference of the baffle 81 on the right side, and the collision part 1012 of the first pushing head 5 can also smoothly pass through the baffle 81 on the right side after being rotated and pressed downwards, so that the push rod 4 is separated from the carrier vehicle 8, and the left one-way push-pull transportation of the carrier vehicle 8 and the vehicle body is realized.

Referring to fig. 3, 8 and 9, after the vehicle body finishes coating production at the station 9, the sliding block 6 slides to the lower part of the counterweight 105 of the first pushing head 5 through the power connecting rod 3 and the shifting fork 2, so that the first pushing head 5 is locked; the push rod 4 is controlled to move leftwards along the moving flat wagon 1, and the first push head 5 moves into the bottom of the carrier wagon 8 while the push rod 4 moves because the locking height of the locked first push head 5 is lower than the lower end of the baffle 81 on the right side.

Referring to fig. 3 and 10, under the action of the gravity of the counterweight 105, the limiting part 1011 of the second pushing head 7 abuts against the push rod 4, so that the limiting part 1011 of the second pushing head 7 smoothly enters the bottom of the carrier vehicle 8, the collision part 1012 of the second pushing head 7 rotates clockwise around the rotating part 103 under the interference of the right baffle 81, and the collision part 1012 of the second pushing head 7 rotates and presses downward to smoothly enter the bottom of the carrier vehicle 8; when the abutting part 1012 of the second pushing head 7 moves to the inner side of the right baffle 81, the pushing rod 4 stops moving to the left, and at this time, the second pushing head 7 rotates and resets under the action of the counterweight 105 thereof, so that the upper end of the abutting part 1012 of the second pushing head 7 is higher than the lower end of the right baffle 81.

Referring to fig. 3 and 11, the push rod 4 is controlled to move rightwards, because the upper end of the collision part 1012 of the second push head 7 collides with the baffle 81 on the right side, the carrier vehicle 8 is pushed to move synchronously when the push rod 4 moves rightwards, and the push rod 4 moves rightwards until the carrier vehicle 8 is located at the designated position of the movable flat car 1 and stops moving.

The control push rod 4 moves leftwards again, at this time, the interference part 1012 of the second push head 7 is separated from the baffle 81 at the right side, and the carrier vehicle 8 stays on the moving flat car 1. Because the first pushing head 5 is supported and locked, the first pushing head 5 can smoothly pass through the left baffle 81 of the carrier vehicle 8 when moving leftwards along with the push rod 4, the limiting part 1011 of the second pushing head 7 also smoothly passes through the left baffle 81 under the action of the gravity of the counterweight block 105, the contact part 1012 of the second pushing head 7 rotates clockwise around the rotating part 103 under the interference of the left baffle 81, and the contact part 1012 of the second pushing head 7 can also smoothly pass through the left baffle 81 after being rotated and pressed downwards, so that the push rod 4 is separated from the carrier vehicle 8, and the carrier vehicle 8 and the vehicle body can be pushed and pulled and transported rightwards in one direction.

The carrier vehicle 8 and the vehicle bodies carried on the carrier vehicle 8 can be transported to the work stations 9 on the respective production lines by means of a mechanical transport device.

The present invention is not limited to the above embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A mechanical conveying device for coating production of vehicle bodies comprises a moving flat vehicle (1) reciprocating between different stations (9) and a carrier vehicle (8) used for carrying the vehicle bodies and loaded on the moving flat vehicle (1), wherein the carrier vehicle (8) moves synchronously with the moving flat vehicle (1) and can convey the vehicle bodies between the stations (9) and the moving flat vehicle (1);

the method is characterized in that: the mechanical conveying device also comprises a slide block control assembly, a push rod (4), a first push head (5), a slide block (6) and a second push head (7); the push rod (4) is movably arranged on the movable flat car (1) and can move between the movable flat car (1) and the station (9); the sliding block control assembly is fixedly arranged on the movable flat car (1), the sliding block (6) is arranged on the push rod (4) in a sliding mode, and the sliding block control assembly is movably connected with the sliding block (6) and can drive the sliding block (6) to slide along the length direction of the push rod (4); the first push head (5) and the second push head (7) are respectively arranged on the push rod (4) in a rotatable manner, and the first push head (5) and the second push head (7) are oppositely arranged on two sides of the sliding block (6), so that the sliding block (6) can be supported at the bottom of one end of one push head when sliding, and the other end of the push head is tilted; the push rod (4) is positioned below the bottom of the carrier vehicle (8), and a limiting structure which can be matched and abutted with the tilting end of the push head is formed on the carrier vehicle (8), so that the carrier vehicle (8) can be limited in the single direction with the push rod (4) and can move synchronously.

2. The mechanical transfer device for the coating production of vehicle bodies according to claim 1, characterized in that: the push head comprises a push head main body (101), a fixed piece (102), a rotating piece (103) and a limiting piece (104); the push head main body (101) is of a V-shaped structure formed by connecting a limiting part (1011) and a collision part (1012), and the middle bending part of the push head main body (101) is arranged on the fixed part (102) through the rotating part (103), so that the push head main body (101) can rotate around the rotating part (103); the fixing piece (102) is fixedly arranged on the push rod (4) so that the push head and the push rod (4) can move synchronously; the limiting piece (104) is arranged on the limiting part (1011), and when the push head main body (101) rotates, the limiting piece (104) can be attached to the surface of the push rod (4), so that the abutting part (1012) can be contacted with the limiting structure on the carrier (8) after tilting.

3. The mechanical transfer device for the coating production of vehicle bodies according to claim 2, characterized in that: spacing portion (1011) and conflict portion (1012) between form the obtuse angle contained angle, and the length of spacing portion (1011) is less than the length of conflict portion (1012), makes the perk height after conflict portion (1012) rotates be higher than the perk height after spacing portion (1011) rotates.

4. The mechanical transfer device for the coating production of vehicle bodies according to claim 2, characterized in that: the push head main body (101) is provided with a plurality of blocks, and a balancing weight (105) is arranged between the limiting parts (1011) of two adjacent push head main bodies (101), so that the gravity of the limiting part side of the push head main body (101) is larger than the gravity of the contact part side, and a gravity center offset structure is formed.

5. The mechanical transfer device for the coating production of vehicle bodies according to claim 1 or 2, characterized in that: the limiting structures are baffle plates (81) arranged at two ends of the bottom of the carrier vehicle (8), and the lower ends of the baffle plates (81) are lower than the maximum tilting height of the abutting parts (1012) and higher than the locking height of the pushing heads; the maximum tilting height of the interference part (1012) is as follows: when the limiting piece (104) of one push head is attached to the surface of the push rod (4), the height of the upper end of the abutting part (1012) of the push head is high; the locking height of the push head is as follows: when the sliding block (6) is supported at the bottom of the balancing weight (105) of the other pushing head, the upper end heights of the limiting part (1011) and the abutting part (1012) of the pushing head are high.

6. The mechanical transfer device for the coating production of vehicle bodies according to claim 1, characterized in that: the push rod (4) is provided with a sliding groove (41), the sliding groove (41) is located between the first pushing head (5) and the second pushing head (7), and the sliding block (6) can be installed on the sliding groove (41) in a matched mode and can slide between the first pushing head (5) and the second pushing head (7) along the sliding groove (41) through the sliding block control assembly.

7. The mechanical transfer device for the coating production of vehicle bodies according to claim 1 or 6, characterized in that: the top both sides of slider (6) be the wedge face, balancing weight (105) of first pushing ram (5) and balancing weight (105) of second pushing ram (7) set up in the both sides of slider (6) relatively, make the wedge face of slider (6) can support balancing weight (105) bottom at one of them pushing ram, make spacing portion (1011) and conflict portion (1012) of this pushing ram all stick up in the top of push rod (4).

8. The mechanical transfer device for the coating production of vehicle bodies according to claim 1 or 6, characterized in that: the sliding block control assembly comprises a shifting fork (2) and a connecting rod (3); a connecting groove (21) is formed in the shifting fork (2), and a shifting lug (61) which can be movably inserted into the connecting groove (21) is formed at the bottom of the sliding block (6); one end of each of the pair of connecting rods (3) is connected to a connecting rod seat (31) fixed on the movable flat car (1) in a rotatable mode, the other end of each of the pair of connecting rods (3) is connected to the bottom of the shifting fork (2) in a rotatable mode, the pair of connecting rods (3) are parallel to each other and rotate synchronously, the shifting fork (2) is enabled to do arc motion, and the sliding block (6) can be driven to move horizontally between the first pushing head (5) and the second pushing head (7).

9. The mechanical transfer device for the coating production of vehicle bodies according to claim 8, characterized in that: one of the connecting rods (3) is arranged on the connecting rod seat (31) through a key shaft, the other connecting rod (3) is arranged on the connecting rod seat (31) through a driving gear (11) through the key shaft, and the driving gear (11) is externally connected with a power source.