CN212197270U

CN212197270U - Commercial automobile assembly line conveying system

Info

Publication number: CN212197270U
Application number: CN202020653649.4U
Authority: CN
Inventors: 姚金荣; 王小路; 文小炎; 赵宗凯; 谈子龙; 吴宏畅; 魏彪; 郭继芳; 武昱辰
Original assignee: Dongfeng Design Institute Co Ltd
Current assignee: Dongfeng Design Institute Co Ltd
Priority date: 2020-04-26
Filing date: 2020-04-26
Publication date: 2020-12-22
Anticipated expiration: 2030-04-26

Abstract

The utility model discloses a commercial automobile assembly line conveying system, wherein the top of a vehicle body is provided with a longitudinal beam supporting structure which can move back and forth along the length direction of the vehicle body, and the longitudinal beam supporting structure comprises a sliding groove arranged at the top of the vehicle body and a supporting slide block arranged in the sliding groove along the length direction of the vehicle body; the starting end that the track section was returned to the platform truck is equipped with and can prevents to carry the platform truck to take off the trailing protection device of tow chain track, protection device including can with the wheel complex of carrying the platform truck the board of bending, the outside surface articulated connection of the board of bending has and returns the fixed plate of issuing a number of track section with the platform truck. Through the movable design of the supporting slide block, the accuracy requirement on the supporting position of the commercial vehicle is met, and the problems of pin falling off and wheel jumping of the conveying trolley are solved. The protection device is installed on the track through the signal plate, when wheels of the conveying trolley upwards act on the bending plate, an alarm instruction can be sent out in time, and the conveying trolley is prevented from being separated from the track.

Description

Commercial automobile assembly line conveying system

Technical Field

The utility model relates to a commercial automobile assembly line technical field specifically indicates a commercial automobile assembly line conveying system.

Background

Usually, medium and heavy commercial vehicles have a relatively large volume, and the length of the vehicle is generally in the range of about 6-12 meters. The general assembly line of the commercial automobile generally comprises 15-18 stations, and the operation contents of a plurality of stations for completing frame assembly line feeding, chassis drop assembly, engine assembly line feeding, tire assembly line feeding, condensation filling, fuel filling, saddle assembly, test adjustment and vehicle assembly line feeding are completed. At present, the most common general assembly line system used by various domestic large commercial automobile manufacturers is a combined system of a trolley ground return type ground drag chain and a double-plate type conveying chain, all parts to be assembled are conveyed to the vicinity of a station area to be assembled of the parts by matching with auxiliary conveying equipment (such as a frame on-line conveying system, an engine on-line conveying system and the like) of other parts at the line side, and the parts are assembled by operators at the station. All stations before condensation filling are operated on the trolley ground return type mop chain, when the operation tasks of the stations on the line of the cab and the bumper are finished, the operation on the line of the tire is carried out, and at the moment, the trolley ground return type mop chain still bears the forward conveying task of the whole vehicle in conveying assembly. After the automobile tire assembly task is completed, the whole automobile enters a power medium filling stage, and at the moment, the whole automobile is conveyed to be gradually transited to the double-plate chain from the floor drag chain. The transition section is the platform truck ground recoverable ground tow chain and double plate chain cross joint department, and length generally is about 5.5m, and condensation filling station section operation is gone on in ground tow chain and double plate chain cross joint department, and this station operation task is accomplished the back, and whole car front wheel lands on double plate chain link joint, and ground recoverable ground tow chain platform truck wheel moves along the arc track of planting the head transition downwards, and the platform truck inserted bar still in the chain operation control range with platform truck track operation orbit matched with, realizes that the automobile body breaks away from the state that the platform truck supported. Generally, two or three trolleys are arranged on a trolley ground return type ground towing chain system to support main bearing parts of a medium-heavy truck (the front trolley supports a frame longitudinal beam; when a truck type comprises a middle-rear axle package, two trolleys, namely the middle trolley and the rear trolley, are required to be arranged to support the frame longitudinal beam and correspondingly support the middle-rear axle package at the same time). The support distance between the front trolley and the middle (rear) trolley of the medium and heavy commercial vehicle is generally about 4-8 meters. Because the changeover portion is longer, when whole car was located the changeover portion, the tire landed on the double plate chain, and the locomotive was for the state that slightly downward slopes, be certain angle with the level this moment, and the task of supporting the solebar is accomplished to the front truck, breaks away from the assembly work piece strong point gradually and conveys forward along the arc track downwards, and whole car rear portion still relies on middle and back platform car to support the automobile body. At the moment, the length difference of the front supporting point and the rear supporting point of the vehicle body changes, the middle background vehicle is influenced by the supporting force of the whole vehicle and is influenced by the force opposite to the conveying direction of the whole vehicle, so that the condition that the pins of the middle background vehicle are separated from the chains occurs, and the vehicle is turned over. On the other hand, the force opposite to the conveying direction of the whole trolley is transmitted to the traction chain, so that the traction chain generates instant running clamping groups and jumping to cause the front trolley in the transition section to be out of stock, and the wheels jump to be incapable of smoothly entering the preset trolley head-mounted track to finish the task of returning the trolley along the underground track.

Therefore, it is necessary to design an assembly line conveying system which can adapt to the change of the supporting force of the whole vehicle and ensure the stable conveying of the whole vehicle.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the above-mentioned background art not enough, provide an adaptable whole car holding power change, guarantee to put in order the car and carry stable conveying system.

In order to achieve the purpose, the utility model relates to a commercial automobile assembly line conveying system, which comprises double-plate chain plates, a ground drag chain track, a ground drag chain arranged in the ground drag chain track and a conveying trolley arranged on the ground drag chain track and fixed with the ground drag chain, wherein the ground drag chain track comprises a trolley return track section which is arranged in a crossed way with the double-plate chain plates, and the conveying trolley comprises a trolley body; the method is characterized in that:

furthermore, the top of the vehicle body is provided with a longitudinal beam supporting structure which can move back and forth along the length direction of the vehicle body, and the longitudinal beam supporting structure comprises a sliding groove arranged on the top of the vehicle body and a supporting sliding block arranged in the sliding groove along the length direction of the vehicle body;

furthermore, the starting end of the trolley return track section is provided with a protection device capable of preventing the conveying trolley from being separated from the towing chain track for traction, the protection device comprises a bending plate matched with wheels of the conveying trolley, and the outer side surface of the bending plate is hinged and connected with a number issuing plate fixed with the trolley return track section.

Furthermore, the plate of bending include vertical plate section and fixed connection in the horizontal plate section at vertical plate section top, the outside surface articulated connection of vertical plate section has the plate of sending a number that returns the track section fixedly with the platform truck.

Furthermore, a slide block resetting structure capable of enabling the support slide block to reset after sliding is connected between the support slide block and the top of the vehicle body, the slide block resetting structure comprises a resetting spring arranged along the length direction of the sliding groove, one end of the resetting spring is fixedly connected to the top of the vehicle body, and the other end of the resetting spring is fixed to the end part of the support slide block.

Furthermore, the top of the vehicle body is hinged with a turning support which can turn over the inner side or the outer side of the vehicle body by taking the length direction of the vehicle body as an axis, and the sliding groove is arranged at the top of the turning support.

Furthermore, the top of the vehicle body is provided with one or more pin shafts parallel to the length direction of the vehicle body, the overturning support comprises a chute plate arranged along the length direction of the vehicle body and a hinged plate vertically and fixedly connected to the bottom of the chute plate, a waist-shaped hole matched with the pin shaft is formed in the hinged plate, and the sliding groove is formed in the chute plate.

Furthermore, the supporting slide block comprises a sliding plate arranged in the sliding groove and a supporting plate which is positioned above the sliding plate and is parallel and fixedly connected with the sliding plate into a whole, and the sliding plate and the sliding groove plate are provided with fixing structures which correspond to each other and can fix the sliding plate and the sliding groove plate into a whole.

Furthermore, the fixed structure comprises a plurality of rows of sliding plate bolt through holes arranged at intervals along the length direction of the sliding plate and a plurality of rows of sliding plate bolt threaded holes arranged at intervals along the length direction of the sliding plate.

Furthermore, a hinged connecting support is fixed on the outer side surface of the vertical plate section, a bent plate resetting structure which can enable the bent plate to reset after being lifted up under the action of wheels of the conveying trolley is fixedly connected to one side of the hinged connecting support, and the other side of the hinged connecting support is hinged to the number plate through a rotating shaft.

Furthermore, the plate bending reset structure comprises a spring mounting support fixed on the track of the mop chain, and a reset spring is connected between one side of the hinged connecting support and the spring mounting support.

Furthermore, a hinge hinged with the trolley return track section is fixed on the bending plate.

The utility model has the advantages that: through the movable design to the supporting slide block, the accuracy requirement to commercial car supporting position has been satisfied, the problem of transport platform truck out of stock and wheel are beated has been prevented. The protection device is installed on the track through the signal plate, when wheels of the conveying trolley upwards act on the bending plate, an alarm instruction can be sent out in time, the conveying trolley is prevented from being separated from the track, the bending plate is rapidly reset through the reset device, and manual interference is not needed. The stability and the reliability of the transportation state of the conveying trolley are improved, and the problem that the conveying trolley of a production line is accidentally tipped is effectively solved on the premise of not increasing the cost.

Drawings

FIG. 1 is a schematic structural view of an automobile assembly conveying line system according to the present invention;

fig. 2 is a side view of the conveying trolley of the present invention;

FIG. 3 is a front view of the conveying trolley of the present invention;

fig. 4 is a front view of the protection device and the conveying trolley of the present invention;

fig. 5 is a side view of a protective device of the present invention;

wherein, 100-conveying trolley, 101-trolley body, 102-sliding groove, 103-supporting slide block (103.1-sliding plate, 103.2-supporting plate), 104-overturning bracket (104.1-sliding groove plate, 104.2-hinged plate), 105-pin shaft, 106-sliding groove plate bolt through hole, 107-sliding plate threaded hole, 108-supporting plate threaded hole, 109-reset spring, 110-wheel, 200-protector, 201-bending plate (201.1-vertical plate section, 201.2-horizontal plate section), 202-number plate, 203-hinged connecting bracket, 204-rotating shaft, 205-spring mounting bracket, 206-reset spring, 207-hinge, 300-double-plate chain plate, 301-ground drag chain track (301.1-trolley return track section),

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific embodiments.

The conveying system for the assembly line of the commercial automobile shown in fig. 1-5 comprises a double-plate chain plate 300, a floor drag chain track 301, a floor drag chain arranged in the floor drag chain track 301 and a conveying trolley 100 which is arranged on the floor drag chain track 301 and fixed with the floor drag chain, wherein the floor drag chain track 301 comprises a trolley return track section 301.1 which is arranged to cross the double-plate chain plate 300, and the conveying trolley 100 comprises a trolley body 101;

the conveying trolley structure comprises a trolley body 101, longitudinal beam supporting structures are arranged on the left side and the right side of the top of the trolley body 101 respectively, each longitudinal beam supporting structure comprises a pin shaft 105 arranged in the front of and behind the trolley body 101, a turnover support 104 is hinged to each pin shaft 105, each turnover support 104 comprises a sliding groove plate 104.1 arranged in the length direction of the trolley body 101 and a hinged plate 104.2 vertically and fixedly connected to the bottom of the sliding groove plate 104.1, a waist-shaped hole matched with each pin shaft 105 is formed in each hinged plate 104.2, and a sliding groove 102 is formed in each sliding groove plate 104.1. A supporting slide block 103 is arranged in the sliding groove 102, the supporting slide block 103 comprises a sliding plate 103.1 arranged in the sliding groove 102 and a supporting plate 103.2 which is positioned above the sliding plate 103.1 and is parallel to and fixedly connected with the sliding plate 103.1 into a whole, and the width of the supporting plate 103.2 is larger than that of the sliding plate 103.1.

A plurality of rows of chute plate bolt through holes 106 are arranged along the length direction of the chute plate 104.1 at intervals, a plurality of rows of chute plate threaded holes 107 are arranged along the length direction of the chute plate 103.1 at intervals, and the shifted chute plate 103.1 and the chute plate 104.1 can be fixed through bolts.

Be connected with the slider reset structure that can make support slider 103 slide and reset after with between support slider 103 and the automobile body 101 top: and a return spring 109 arranged along the length direction of the sliding groove 102, wherein one end of the return spring 109 is fixedly connected to the top of the vehicle body 101, and the other end is fixed at the end of the supporting slide block 103.

The protection device comprises a bending plate 201, the bending plate 201 comprises a vertical plate section 201.1 and a horizontal plate section 201.2 fixedly connected to the top of the vertical plate section 201.1, and the length of the horizontal plate section 201.2 is larger than the width of the vertical plate section 201.1 (the horizontal plate section 201.2 is in contact with the wheel 110 in priority, and whether the conveying trolley 100 is separated from the track or not can be found as early as possible). The outer side surface of the vertical plate section 201.1 is hinged with a number plate 202 fixed with the trolley return track section 301.1: the outer side surface of the vertical plate section 201.1 is fixedly provided with a hinged connecting support 203, one side of the hinged connecting support 203 is fixedly connected with a bent plate resetting structure, and the other side of the hinged connecting support 203 is hinged with the number plate 202 through a rotating shaft 204.

The outside fixed surface of vertical plate segment 201.1 is connected with the board reset structure of bending that resets after board 201 that bends is lifted up by the wheel 110 effect of transport trolley 100: the device comprises a spring mounting bracket 205 fixed on a ground drag chain track 301, and a return spring 206 is connected between one side of a hinged connecting bracket 203 and the spring mounting bracket 205.

A hinge 207 which is hinged with the trolley return track section 301.1 is fixed on the bending plate 201 (the stability and reliability of connection between the bending plate 201 and the trolley return track section 301.1 are further enhanced).

The utility model discloses in, through the movable design to supporting the slider 103, satisfied the accuracy requirement to commercial car support position, solved the problem that transport platform truck 100 is out of stock and wheel 110 is beated, increased the stability and the reliability of carrying platform truck 100 car transport state, under the prerequisite that does not increase the cost, effectual solved the production line and carried the difficult problem that platform truck 100 accident tumbled. Install protection device on the track through the board 202 that sends a signal, when the wheel 110 of carrying the platform truck 100 upwards acts on the board 201 of bending, can in time send out alarm command, prevent to carry the platform truck 100 and break away from the track, and make the board 201 of bending reset rapidly through setting up resetting means, need not artificial interference, increased the stability and the reliability of carrying the platform truck 100 transport state, under the prerequisite that does not increase the cost, effectual early warning the production line carries the unexpected tipping of platform truck 100.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the structure of the present invention in any way. Any simple modification, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention all still fall within the scope of the technical solution of the present invention.

Claims

1. A commercial automobile assembly line conveying system comprises double-plate chain plates (300), a floor drag chain track (301), a floor drag chain arranged in the floor drag chain track (301), and a conveying trolley (100) arranged on the floor drag chain track (301) and fixed with the floor drag chain, wherein the floor drag chain track (301) comprises trolley return track sections (301.1) arranged in a crossed mode with the double-plate chain plates (300), and the conveying trolley (100) comprises a trolley body (101); the method is characterized in that:

the top of the vehicle body (101) is provided with a longitudinal beam supporting structure capable of moving back and forth along the length direction of the vehicle body (101), and the longitudinal beam supporting structure comprises a sliding groove (102) arranged at the top of the vehicle body (101) and a supporting sliding block (103) arranged in the sliding groove (102) along the length direction of the vehicle body (101);

the trolley returns the initiating terminal of track section (301.1) and is equipped with and can prevent carry trolley (100) to break away from protection device (200) that the drag chain track was pull, protection device (200) including can with carry trolley (100) wheel (110) complex board (201) of bending, the outside surface articulated connection of board (201) of bending has and returns track section (301.1) fixed board (202) of sending out with the trolley.

2. The commercial vehicle assembly line conveyor system as defined in claim 1 wherein: the bending plate (201) comprises a vertical plate section (201.1) and a horizontal plate section (201.2) fixedly connected to the top of the vertical plate section (201.1), and the outer side surface of the vertical plate section (201.1) is hinged with a number plate (202) fixed to the trolley return track section (301.1).

3. The commercial vehicle assembly line conveyor system as defined in claim 1 wherein: the supporting sliding block (103) and the top of the vehicle body (101) are connected with a sliding block resetting structure capable of enabling the supporting sliding block (103) to reset after sliding, the sliding block resetting structure comprises a resetting spring (109) arranged along the length direction of the sliding groove (102), one end of the resetting spring (109) is fixedly connected to the top of the vehicle body (101), and the other end of the resetting spring is fixed to the end part of the supporting sliding block (103).

4. The commercial vehicle assembly line conveyor system as defined in claim 1 wherein: the top of the vehicle body (101) is hinged with a turnover support (104) which can be turned over towards the inner side or the outer side of the vehicle body (101) by taking the length direction of the vehicle body (101) as an axis, and the sliding groove (102) is arranged at the top of the turnover support (104).

5. The commercial vehicle assembly line conveyor system of claim 4, wherein: the automobile body (101) top be provided with one or more with the length direction parallel round pin axle (105) of automobile body (101), upset support (104) include along slide groove board (104.1) that automobile body (101) length direction set up and perpendicular fixed connection in articulated slab (104.2) of slide groove board (104.1) bottom, seted up on articulated slab (104.2) with round pin axle (105) complex waist type hole, sliding tray (102) are seted up on slide groove board (104.1).

6. The commercial vehicle assembly line conveyor system as defined in claim 5 wherein: the supporting sliding block (103) comprises a sliding plate (103.1) arranged in the sliding groove (102) and a supporting plate (103.2) which is positioned above the sliding plate (103.1) and is fixedly connected with the sliding plate (103.1) in parallel into a whole, and fixing structures which correspond to each other and can fix the sliding plate (103.1) and the sliding groove plate (104.1) into a whole are arranged on the sliding plate (103.1) and the sliding groove plate (104.1).

7. The commercial vehicle assembly line conveyor system of claim 6, wherein: the fixing structure comprises a plurality of rows of sliding plate bolt through holes (106) arranged at intervals along the length direction of the sliding plate (104.1) and a plurality of rows of sliding plate bolt threaded holes (107) arranged at intervals along the length direction of the sliding plate (103.1).

8. The commercial vehicle assembly line conveyor system as defined in claim 2 wherein: the outer side surface of the vertical plate section (201.1) is fixedly provided with a hinged connecting support (203), one side of the hinged connecting support (203) is fixedly connected with a bent plate resetting structure which enables the bent plate (201) to reset after being lifted up under the action of wheels (110) of the conveying trolley (100), and the other side of the hinged connecting support (203) is hinged with the number plate (202) through a rotating shaft (204).

9. The commercial vehicle assembly line conveyor system as defined in claim 8 wherein: the bending plate resetting structure comprises a spring mounting support (205) fixed on the ground drag chain track (301), and a resetting spring (206) is connected between one side of the hinged connecting support (203) and the spring mounting support (205).

10. The commercial vehicle assembly line conveyor system as defined in claim 1 wherein: and a hinge (207) which is hinged with the trolley return track section (301.1) is fixed on the bending plate (201).