CN114346628A

CN114346628A - Three-dimensional circulating type frame riveting production line and operation method thereof

Info

Publication number: CN114346628A
Application number: CN202111467778.XA
Authority: CN
Inventors: 刘帅; 李广堂; 高翔; 王兴宝; 崔兵; 郑汉秋
Original assignee: China National Heavy Duty Truck Group Jining Commercial Vehicle Co ltd
Current assignee: China National Heavy Duty Truck Group Jining Commercial Vehicle Co ltd
Priority date: 2021-12-02
Filing date: 2021-12-02
Publication date: 2022-04-15
Anticipated expiration: 2041-12-02
Also published as: CN114346628B

Abstract

The invention discloses a three-dimensional circulating type frame riveting production line and an operation method thereof, belonging to the technical field of frame assembly, and comprising a riveting moving platform, a riveting assembly track device, a transfer track device, a logic switch controller and a lifting transfer device; the lifting and transferring device comprises an online lifting device and an offline lifting device; the riveting assembly track device, the lower wire lifting device, the transferring track device and the upper wire lifting device are sequentially arranged, and a vertical quadrilateral structure is formed. The riveting assembly track device is used for assembling the frame on line, the off-line lifting device is used for lifting the riveting mobile platform, the transfer track device is used for transferring the riveting mobile platform, and the on-line lifting device is used for descending the riveting mobile platform, so that the riveting mobile platform can be recycled, the riveting assembly production efficiency of the frame is improved, the labor intensity is reduced, the production environment is improved, the production cost is saved, and the production takt is stabilized; the vertical quadrilateral structure is adopted, the occupied space is small, and the occupied space of a workshop is effectively saved; simple structure and good practicability.

Description

Three-dimensional circulating type frame riveting production line and operation method thereof

Technical Field

The invention belongs to the technical field of frame assembly, and particularly relates to a three-dimensional circulating type frame riveting production line and an operation method thereof.

Background

The frame is a frame structure bridged on the front axle and the rear axle of the automobile, is commonly called a crossbeam and is a base body of the automobile. Generally, the suspension device is composed of two longitudinal beams and a plurality of cross beams, and is supported on wheels through a suspension device, a front axle and a rear axle. The frame must have sufficient strength and rigidity to withstand the load of the vehicle and the impact transmitted from the wheels. The function of the frame is to support and connect the various assemblies of the vehicle, to keep the assemblies in relatively correct positions, and to bear various loads inside and outside the vehicle.

In the actual production assembly process of the frame, two longitudinal beams and a plurality of cross beams are usually supported and assembled and riveted through a riveting trolley, after the assembly is completed, the riveting trolley is manually pushed to a lower frame station, and after the frame is off-line, the riveting trolley needs to be manually pushed or transferred to an initial station through a forklift, so that the riveting trolley is recycled.

A large amount of labor is consumed by manually pushing the riveting trolley, so that the labor intensity of operation is increased; the operation in the workshop by using the forklift has great potential safety hazard and causes environmental pollution in the workshop; and can cause unstable production rhythm and low working efficiency; in the existing frame assembly production, the occupied workshop area is large, and the effective utilization of workshop space cannot be realized.

Disclosure of Invention

In order to solve the problems, the invention provides a three-dimensional circulating type frame riveting production line and an operation method thereof, which can automatically realize the circulation of a riveting moving platform, improve the production efficiency, reduce the labor intensity, effectively improve the production environment, save the production cost, stabilize the production takt, have simple integral structure and small occupied space and save the occupied workshop space.

The invention is realized by the following technical scheme on one hand:

a three-dimensional circulating type frame riveting production line comprises a riveting moving platform, a riveting assembling track device, a transferring track device, a logic switch controller and a lifting transferring device; the riveting mobile platform is used for assembling and riveting the frame support; the transfer rail device is arranged at the upper part of the riveting assembly rail device, and the lifting transfer device comprises an upper line lifting device and a lower line lifting device which are symmetrically arranged at two ends of the riveting assembly rail device; the riveting assembly track device, the lower wire lifting device, the transfer track device and the upper wire lifting device are sequentially arranged to form a vertical quadrilateral structure; the riveting assembly track device conveys the riveting mobile platform and realizes on-line riveting assembly of the frame; the off-line lifting device lifts and conveys the riveting mobile platform from the riveting assembly track device to the transfer track device; the transfer track device carries the riveting mobile platform in a rotary manner; the riveting mobile platform is descended and conveyed from the transfer rail device to the riveting assembly rail device by the upper line lifting device; and the logic switch controller is used for receiving the sensor signal and controlling the power mechanism to operate. The riveting mobile platform is assembled on line through the riveting assembling rail device, lifted through the off-line lifting device, transferred back to the initial end through the transferring rail device and descended through the on-line lifting device, so that the recycling of the riveting mobile platform is realized, the riveting assembling production efficiency of the frame is improved, the labor intensity is reduced, the production environment is effectively improved, the production cost is saved, and the production takt is stabilized; the whole body is of a vertical quadrilateral structure, the occupied space is small, and the occupied space of a workshop is effectively saved; simple structure and good practicability.

The invention is further improved that the riveting mobile platform comprises a first riveting trolley and a second riveting trolley; a first trolley supporting pulley and a second trolley supporting pulley which support the frame longitudinal beam are respectively arranged on the first riveting trolley and the second riveting trolley; the first riveting trolley and the second riveting trolley are respectively provided with a first trolley monkey wrench and a second trolley monkey wrench; the bottoms of the first riveting trolley and the second riveting trolley are respectively provided with a first trolley roller and a second trolley roller. The frame longitudinal beams are supported through the supporting pulleys, and the cross beam placed between the two frame longitudinal beams is riveted and assembled through the adjustable wrench, so that the rapidness of frame assembly can be realized; and the frame longitudinal beam can roll and adjust left and right on the supporting pulley to ensure the flexibility of assembly.

The riveting assembly rail device is characterized in that the riveting assembly rail device is arranged on the upper line lifting device, the lower line lifting device and the transferring rail device, and the riveting assembly rail device is arranged on the lower line lifting device. The chain drives the propelling assembly to automatically convey and propel the riveting moving platform, so that the labor intensity of manual conveying is effectively reduced.

The invention is further improved in that a second trolley motion control mechanism matched with the propelling component is arranged on the second riveting trolley; a first trolley motion control mechanism and a second trolley motion control mechanism which are matched with the propelling component are arranged on the first riveting trolley; the first riveting trolley comprises a first trolley support frame and four first trolley rollers arranged at the bottom of the first trolley support frame; the first trolley motion control mechanism comprises a first trolley swinging pin rotatably arranged at the lower part of the first trolley supporting frame; the second trolley motion control mechanism comprises a swinging support which is rotatably arranged at the lower part of the first trolley support frame, and the swinging support is connected with a spring buckle plate through a compression spring; the second riveting trolley comprises a second trolley support frame and four second trolley rollers arranged at the bottom of the second trolley support frame; the second trolley movement control mechanism comprises a second trolley swinging pin which is rotatably arranged at the lower part of the second trolley supporting frame. The propelling components on the devices can selectively contact and push the first trolley motion control mechanism, the second trolley motion control mechanism and the second trolley motion control mechanism, so that the flexible control of the riveting mobile platform is realized, and the reliable stability of the operation is ensured.

The riveting assembly rail device is further improved and is provided with a riveting assembly linear guide rail and a riveting assembly driving chain which guide the first trolley roller and the second trolley roller; and a plurality of riveting assembly driving blocks which push the first riveting trolley and the second riveting trolley are arranged on the riveting assembly driving chain at intervals. On the riveting assembly track device, different riveting assembly driving blocks are driven by the riveting assembly driving chain to be respectively in contact with the second trolley motion control mechanism and the first trolley motion control mechanism for pushing, so that equidistant operation of the first riveting trolley and the second riveting trolley is realized, and the reliability of on-line frame assembly is ensured.

The invention is further improved in that the transfer track device is arranged above the riveting assembly track device through a transfer track support frame; a transfer linear guide rail and a transfer driving chain for guiding the first trolley roller and the second trolley roller are arranged on the transfer rail device; a plurality of transfer driving blocks are arranged on the transfer driving chain at intervals, and transfer driving bolts for pushing the first riveting trolley and the second riveting trolley are arranged on the transfer driving blocks; the tail end of the transfer track device in the conveying direction is provided with a transfer car stopping mechanism for stopping the first riveting trolley and the second riveting trolley; the head end of the transfer track device in the conveying direction is provided with a second off-line upper track driving-in inductive switch and a first off-line upper track driving-in inductive switch which respectively detect that the first riveting trolley and the second riveting trolley drive in place. On the transfer rail device, the transfer driving chain drives the transfer driving bolt to contact and push with the first trolley motion control mechanism II, so that the rotary operation of the first riveting trolley and the second riveting trolley is realized, and the riveting mobile platform returns to the initial end; the riveting mobile platform is blocked by the transferring and stopping mechanism, so that the transferring and stopping mechanism can be released only after the on-line lifting device is lifted and reset; respectively detecting a pair of first riveting trolley and second riveting trolley through the second off-line upper track driving-in induction switch and the second off-line upper track driving-in induction switch, and ensuring that the off-line lifting device can descend and reset after the riveting mobile platform completely drives into the transfer track device; the reliability and the safety of the operation are ensured.

The invention is further improved in that the upper thread lifting device comprises an upper thread lifting frame and an upper thread lifting platform vertically and slidably arranged on the upper thread lifting frame; an upper wire transverse conveying mechanism is horizontally and longitudinally slidably mounted on the upper wire lifting platform, an upper wire transverse conveying chain and an upper wire transverse linear guide rail are mounted on the upper wire transverse conveying mechanism, and a pushing block for pushing the first riveting trolley and the second riveting trolley is arranged on the upper wire transverse conveying chain. The riveting mobile platform is horizontally and transversely guided through the upper-line transverse linear guide rail, and the pushing block on the upper-line transverse conveying chain is driven to contact and push the riveting mobile platform, so that the riveting mobile platform can transversely drive in and out on the upper-line lifting device; the horizontal longitudinal adjustment of the riveting moving platform is realized by the horizontal longitudinal sliding of the upper line transverse conveying mechanism along the upper line lifting platform; the upper line lifting platform is lifted and slid along the upper line lifting frame to realize lifting adjustment of the riveting moving platform; therefore, the riveting mobile platform can move flexibly in multiple directions on the on-line lifting device, and the reliability and the flexibility of the riveting mobile platform in transferring are ensured.

The invention is further improved in that the upper line lifting frame is provided with an upper line limiting switch and an upper line lower limiting switch which respectively monitor the up-down moving of the upper line lifting platform. The upper limit switch and the lower limit switch of the upper line are used for detecting and limiting the upper line lifting platform, and the logic switch controller is used for controlling the upper line lifting platform, so that the accuracy and the reliability of lifting operation can be ensured, and the sequence and the logic of the actions of each device can be realized.

The other aspect of the invention is realized by the following technical scheme:

an operation method of a three-dimensional circulating frame riveting production line comprises the following steps:

the method comprises the following steps: the upper line lifting device conveys the first riveting trolley and the second riveting trolley to an upper line lifting platform; conveying the riveting mobile platform from the first online station to a second online station; conveying the second riveting trolley to a lower rail driving-in station; the upper thread lifting device is lifted to the upper thread station I for resetting; the limit switch on the upper line receives a trigger signal;

step two: the riveting assembly track device conveys the first riveting trolley and the second riveting trolley in the same direction in the advancing direction, the distance between the first riveting trolley and the second riveting trolley is adjusted by applying external force, the longitudinal beam and the cross beam of the vehicle frame are assembled, the assembly and riveting operation is carried out, and the vehicle frame is lifted away after the assembly is finished; the second riveting trolley is transported from the lower rail driving-in station to the lower rail driving-out station, and the riveting assembly rail device continues to work;

step three: the off-line lifting device conveys the second riveting trolley to an off-line lifting platform from the off-track running-out station; transporting the riveting mobile platform from the first offline station to a second offline station; conveying the first riveting trolley to an upper rail driving-in station; the offline lifting device suspends the work and waits for a control signal of the logic switch controller;

step four: the transfer track device transports the first riveting trolley and the second riveting trolley in the same direction in the advancing direction, when the front wheel of the second riveting trolley reaches the position where the upper track of the lower line drives into the inductive switch and the rear wheel of the first riveting trolley reaches the position where the upper track of the lower line drives into the inductive switch, the logic switch controller sends a control signal to the lower line lifting device, and the transfer track device continues to transport the first riveting trolley and the second riveting trolley in the advancing direction;

step five: the off-line lifting device receives a control signal sent by the logic switch controller, and the off-line lifting device is lowered to an off-line station I for resetting;

step six: the transfer track device transports the first riveting trolley to an upper track waiting station, the second riveting trolley is in contact with the stop lever in an extending state, and the first riveting trolley and the second riveting trolley both stop moving; when the logic switch controller detects a trigger signal of the limit switch on the upper line, the control cylinder retracts the stop lever; the transfer track device continues to convey the first riveting trolley and the second riveting trolley to the same direction until the first riveting trolley reaches the upper track exit station, and the stop lever returns to the extended state; the first riveting trolley and the second riveting trolley are separated from contact with a propelling component in the transfer track device and stop moving, and the transfer track device continues to work;

step seven: and (5) completing the transfer of the riveting trolley and returning to the initial station, and circularly executing the steps from the first step to the sixth step.

According to the technical scheme, the invention has the beneficial effects that:

the riveting mobile platform is assembled on line through the riveting assembling rail device, lifted through the off-line lifting device, transferred back to the initial end through the transferring rail device and descended through the on-line lifting device, so that the recycling of the riveting mobile platform is realized, the riveting assembling production efficiency of the frame is improved, the labor intensity is reduced, the production environment is effectively improved, the production cost is saved, and the production takt is stabilized; the whole body is of a vertical quadrilateral structure, the occupied space is small, and the occupied space of a workshop is effectively saved; simple structure and good practicability.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a riveting production line for a vehicle frame according to an embodiment of the invention.

Fig. 2 is a schematic diagram of each station of the frame riveting production line according to the embodiment of the invention.

Fig. 3 is a schematic view of a first direction structure of a first riveting trolley according to an embodiment of the invention.

Fig. 4 is a structural diagram of the first riveting trolley in the second direction according to the embodiment of the invention.

Fig. 5 is a schematic view of a first-direction structure of a second riveting trolley according to an embodiment of the invention.

Fig. 6 is a structural diagram of a second riveting trolley in a second direction according to the embodiment of the invention.

Fig. 7 is a schematic structural view of a needle threading lifting device according to an embodiment of the present invention.

Fig. 8 is a schematic structural view of an online lifting platform according to an embodiment of the present invention.

Fig. 9 is a schematic structural view of a lower thread lifting device according to an embodiment of the present invention.

Fig. 10 is a schematic structural view of the offline lifting platform according to the embodiment of the present invention.

Fig. 11 is a schematic structural view of a riveting assembly rail device according to an embodiment of the invention.

Fig. 12 is a schematic structural view of a transfer rail device according to an embodiment of the present invention.

Fig. 13 is a schematic view of a state that the riveting mobile platform drives into the on-line lifting device according to the embodiment of the invention.

Fig. 14 is a partially enlarged structural schematic view of the riveting movable platform in fig. 13.

Fig. 15 is a schematic view illustrating a state in which the upper line lifting platform descends according to the embodiment of the present invention.

Fig. 16 is a partially enlarged structural schematic view of the riveting movable platform in fig. 15.

Fig. 17 is a schematic view of a state that the riveting mobile platform longitudinally moves on the on-line lifting device according to the embodiment of the invention.

Fig. 18 is a partially enlarged structural schematic view of the riveting movable platform in fig. 17.

Fig. 19 is a schematic view of the riveting mobile platform in a state of coming out of the on-line lifting device according to the embodiment of the invention.

Fig. 20 is a partially enlarged schematic structural view of the riveting movable platform in fig. 19.

Fig. 21 is a schematic view of the riveting mobile platform of the embodiment of the invention in a state of driving into the riveting assembly track device.

FIG. 22 is a schematic view of the resetting of the upper-line transverse conveying chain according to the embodiment of the invention.

Fig. 23 is a schematic view of the reset completion state of the upper-thread transverse conveying chain according to the embodiment of the invention.

Fig. 24 is a schematic diagram of resetting the online lifting platform according to the embodiment of the present invention.

Fig. 25 is a schematic diagram of a state of the resetting completion of the online lifting platform according to the embodiment of the present invention.

Fig. 26 is a longitudinal resetting schematic diagram of the upper line transverse conveying mechanism according to the embodiment of the invention.

Fig. 27 is a schematic view of the state of the upper line transverse conveying mechanism of the embodiment of the invention after longitudinal resetting is completed.

Fig. 28 is a schematic view of the operation state of the riveting mobile platform on the riveting assembling track device according to the embodiment of the invention.

FIG. 29 is a schematic view of a first cart rocker pin in a rocked position in accordance with an embodiment of the present invention.

FIG. 30 is a schematic view of a first cart rocker pin passing over a riveted assembly drive block in accordance with an embodiment of the present invention.

Fig. 31 is a schematic view of the state that the first riveting trolley exits the riveting assembly rail device according to the embodiment of the invention.

Fig. 32 is a schematic view of the riveting mobile platform of the embodiment of the invention in a state of being driven out of the riveting assembling rail device.

Fig. 33 is a schematic view of the second riveting carriage of the embodiment of the invention in a state of being withdrawn from the riveting assembly rail device.

Fig. 34 is a schematic view of the riveting mobile platform running transversely on the lower wire lifting device according to the embodiment of the invention.

Fig. 35 is a schematic view of the riveting mobile platform entering the offline lifting device according to the embodiment of the invention.

Fig. 36 is a schematic view of the lower wire lift platform in a raised state in accordance with an embodiment of the present invention.

Fig. 37 is a schematic view of the state that the riveting mobile platform moves longitudinally on the lower wire lifting device according to the embodiment of the invention.

Fig. 38 is a schematic view illustrating a state in which the riveting mobile platform exits from the offline lifting device according to the embodiment of the invention.

Fig. 39 is a schematic view illustrating a first state in which the riveting movable platform exits the offline lifting device according to the embodiment of the invention.

Fig. 40 is a schematic view illustrating a second state in which the riveting movable platform exits the offline lifting device according to the embodiment of the invention.

Fig. 41 is a schematic view of a state in which the riveting mobile platform is driven into the transfer rail device according to the embodiment of the invention.

Fig. 42 is a schematic view of the riveting mobile platform driving into the transfer track device in the first state according to the embodiment of the invention.

Fig. 43 is a schematic diagram of a riveting mobile platform driven into a transfer track device in a second state according to the embodiment of the invention.

Fig. 44 is a schematic view of the offline lifting platform resetting according to the embodiment of the present invention.

Figure 45 is a schematic view of the longitudinal return of the lower thread cross feed mechanism in accordance with an embodiment of the present invention.

FIG. 46 is a schematic view of the lower line lateral transfer mechanism of the embodiment of the present invention in a state of completion of longitudinal reset.

Fig. 47 is a schematic view of the return of the lower lateral conveying chain according to the embodiment of the present invention.

Fig. 48 is a schematic view of the completion of the return of the lower lateral conveying chain according to the embodiment of the present invention.

Fig. 49 is a schematic diagram of the transfer drive bolt pushing the first riveting trolley according to the embodiment of the invention.

Fig. 50 is a schematic view illustrating a state in which the stopper bar blocks the riveting movable platform according to the embodiment of the present invention.

FIG. 51 is a schematic view of a first cart rocker pin in a rocked position in accordance with an embodiment of the present invention.

FIG. 52 is a diagram illustrating the state of the sprung buckle in accordance with the preferred embodiment of the present invention.

FIG. 53 is a schematic view of a second cart rocker pin in a rocked state in accordance with an embodiment of the present invention.

FIG. 54 is a schematic view of the transfer drive bolt urging against the sprung buckle in accordance with an embodiment of the present invention.

In the drawings: 1-riveting a mobile platform; 2-an online lifting device; 3-riveting and assembling the rail device; 4-an offline lifting device; 5-a transfer track device; 6-a logic switch controller; 701-driving a lower rail into a station; 702-lower track exiting station; 703-driving the upper rail into a station; 704-upper track exiting station; 705-waiting station on upper track; 706-online station one; 707-an online station two; 708-offline station one; 709-off-line station two; 8-a first riveting trolley; 9-a second riveting trolley; 10-a first trolley support frame; 11-a first trolley support pulley; 12-a first dolly monkey wrench; 13-a first trolley movement control mechanism; 14-a second trolley movement control mechanism; 15-first trolley rollers; 16-a first trolley swing pin; 17-a first trolley pin; 18-a swing frame; 19-compression spring; 20-a spring buckle plate; 21-a rotating shaft; 22-a second trolley support frame; 23-a second trolley support pulley; 24-a second trolley monkey wrench; 25-a second trolley movement control mechanism; 26-a second trolley roller; 27-a second trolley swing pin; 28-a second trolley pin; 29-an upper line lifting frame; 30-an online lifting motor; 31-an on-line lifting transmission assembly; 32-upper line balancing weight; 33-an on-line lifting platform; 34-an on-line limit switch; 35-an upper line lower limit switch; 36-an inline transmission shaft; 37-an upper line lifting sprocket; 38-an upper line lifting chain; 39-an upper line transverse conveying mechanism; 40-an upper line longitudinal transmission assembly; 41-an on-line trolley in-place inductive switch; 42-an online transmission induction switch I; 43-an online conveying induction switch II; 44-returning induction switches of the upper conveying chain; 45-induction switch I of the upper line transverse conveying mechanism; 46-induction switch II of the upper line transverse conveying mechanism; 47-up line lateral motor; 48-an upper line transverse conveying mechanism bracket; 49-upper line transverse driving chain wheel; 50-an upper line transverse driven sprocket; 51-an upper line transverse conveying chain; 52-a first on-line advancing block; 53-an upper line pushing block II; 54-an inline sensing block; 55-an upper line transverse linear guide rail; 56-upper thread rack; 57-an upper line longitudinal linear guide rail; 58-up-line longitudinal motor; 59-upper line longitudinal drive gear; 60-riveting and assembling a linear guide rail; 61-riveting the assembled motor; 62-riveting and assembling a transmission component; 63-riveting and assembling a driving chain; 64-riveting and assembling the driving block; 65-riveting and assembling the driven chain wheel; 66-riveting and assembling the driving chain wheel; 67-riveting and assembling the rotating shaft; 68-lower line lifting frame; 69-lower line lifting motor; 70-an offline lifting transmission assembly; 71-offline counterweight block; 72-an offline lifting platform; 73-off-line upper limit switch; 74-lower limit down switch; 75-the lower line upper track drives into the inductive switch I; 76-the lower line and the upper track drive-in inductive switch II; 77-down-line drive shaft; 78-lower line lifting sprocket; 79-off-line lifting chain; 80-off-line lateral conveying mechanism; 81-down-line longitudinal drive assembly; 82-off-line trolley in-place induction switch; 83-a first offline conveying induction switch; 84-off-line conveying induction switch II; 85-returning the lower coil conveying chain to the inductive switch; 86-a first induction switch of the lower wire transverse conveying mechanism; 87-induction switch II of the lower wire transverse conveying mechanism; 88-down-line transverse motor; 89-off-line transverse conveying mechanism bracket; 90-off-line transverse drive sprocket; 91-lower line transverse driven sprocket; 92-off-line transverse conveying chain; 93-a first offline pushing block; 94-offline pushing block two; 95-offline induction block; 96-off-line transverse linear guide; 97-off-line rack; 98-down-line longitudinal linear guide; 99-down-line longitudinal motor; 100-off-line longitudinal drive gear; 101-a transfer linear guide; 102-a transport motor; 103-a transfer drive assembly; 104-transfer drive chain; 105-a transport drive block; 106-transport drive bolt; 107-a transfer stop mechanism; 108-a transfer track support; 109-a transfer drive sprocket; 110-a transfer driven sprocket; 111-a transfer rotation axis; 112-a cylinder; 113-stop bar.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the present embodiment, and it is apparent that the embodiments described below are only a part of embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection of this patent.

As shown in fig. 1, the invention discloses a three-dimensional circulating frame riveting production line, which comprises a riveting mobile platform 1, a riveting assembly track device 3, a transfer track device 5, a logic switch controller 6 and two lifting transfer devices; the transfer rail device 5 is arranged at the upper part of the riveting assembly rail device 3, and the lifting transfer device comprises an upper line lifting device 2 and a lower line lifting device 4 which are symmetrically arranged at two ends of the riveting assembly rail device 3; the riveting assembly track device 3, the lower wire lifting device 4, the transfer track device 5 and the upper wire lifting device 2 are sequentially connected, and a three-dimensional quadrilateral structure is formed. The riveting moving platform 1 comprises a second riveting trolley 9 and a first riveting trolley 8 which are arranged on the left and right sides.

The dashed boxes in fig. 2 show the production line main stations: a lower track driving-in station 701, a lower track driving-out station 702, an upper track driving-in station 703, an upper track driving-out station 704, an upper track waiting station 705, an upper line station one 706, an upper line station two 707, a lower line station one 708, and a lower line station two 709. The lower rail entrance station 701 is located at the left end of the riveting assembly rail device 3, the lower rail exit station 702 is located at the right end of the riveting assembly rail device 3, the upper rail entrance station 703 is located at the right end of the transfer rail device 5, the upper rail exit station 704 is located at the left end of the transfer rail device 5, the upper rail waiting station 705 is located at the right side of the upper rail exit station 704 and is located on the same plane as the upper rail exit station 704, the upper station one 706 is located at the left side of the upper rail exit station 704 and is located on the same plane as the upper rail exit station 704, the upper station two 707 is located at the left side of the lower rail entrance station 701 and is located on the same plane as the lower rail entrance station 701, the lower station one 708 is located at the right side of the lower rail exit station 702 and is located on the same plane as the lower rail exit station 702, and the lower station two 709 is located at the right side of the upper rail entrance station 703 and is located on the same plane as the upper rail entrance station 703. The first upper line station 706 is located a distance above the second upper line station 707, and the second lower line station 709 is located a distance above the first lower line station 708.

As shown in fig. 3-4, is a first staking cart configuration. The first riveting trolley 8 comprises a first trolley support frame 10, a first trolley support pulley 11, a first trolley adjustable wrench 12, a first trolley motion control mechanism I13, a first trolley motion control mechanism II 14 and a first trolley roller 15. The first trolley support pulley 11 has two: the first trolley supporting pulley 11a and the first trolley supporting pulley 11b are arranged on the first trolley supporting frame 10. The first trolley monkey wrench 12 has two: the first trolley adjustable wrench 12a and the first trolley adjustable wrench 12b are installed on the first trolley support frame 10 and are positioned above the first trolley support pulley 11. The first trolley movement control mechanism 13 comprises a first trolley swinging pin 16 and a first trolley pin shaft 17, the first trolley swinging pin 16 is rotatably installed at the lower part of the first trolley supporting frame 10 through the first trolley pin shaft 17, and one surface of the first trolley swinging pin is in plane contact with the local plane of the first trolley supporting frame 10 to form vertical limiting in the right direction. The second trolley motion control mechanism 14 comprises a swing bracket 18, a compression spring 19, a spring buckle plate 20 and a rotating shaft 21, wherein the swing bracket 18 is rotatably arranged at the lower part of the first trolley support frame 10 through the rotating shaft 21 and horizontally supported on the first trolley support frame 10 leftwards; one end of a compression spring 19 is connected with the swing bracket 18, the other end of the compression spring is connected with a spring buckle plate 20, and the compression spring 19 can deform and the swing bracket 18 can turn upwards only when a certain pushing force is left exceeded by a pushing block on the spring buckle plate 20. The first trolley wheels 15 have four: the first trolley roller 15a, the first trolley roller 15b, the first trolley roller 15c and the first trolley roller 15d are arranged at the bottom of the first trolley support frame 10.

As shown in fig. 5-6, a second riveting trolley structure. The second riveting trolley 9 comprises a second trolley support frame 22, a second trolley support pulley 23, a second trolley adjustable wrench 24, a second trolley motion control mechanism 25 and a second trolley roller 26. The second trolley support pulley 23 has two: the second trolley supporting pulley 23a and the second trolley supporting pulley 23b are arranged on the second trolley supporting frame 22. The second trolley monkey wrench 24 has two: the second trolley adjustable wrench 24a and the second trolley adjustable wrench 24b are arranged on the second trolley supporting frame 22. The second trolley movement control mechanism 25 comprises a second trolley swinging pin 27 and a second trolley pin 28, the second trolley swinging pin 27 is rotatably installed at the lower part of the second trolley supporting frame 22 through the second trolley pin 28, and one surface of the second trolley swinging pin 27 is in plane contact with the local surface of the second trolley supporting frame 22 to form a vertical limit in the right direction. The second cart rollers 26 have four: the second trolley roller 26a, the second trolley roller 26b, the second trolley roller 26c and the second trolley roller 26d are arranged at the bottom of the second trolley support frame 22.

The lifting transfer device, the riveting assembly track device 3 and the transfer track device 5 are respectively provided with a chain and a propelling component arranged on the chain. The propulsion assembly comprises a riveting assembly driving block 64 arranged on the riveting assembly track device 3, a transfer driving bolt 106 arranged on the transfer track device 5 and a propulsion block arranged on the lifting transfer device.

As shown in fig. 7-10, is an elevating transfer device structure. In this embodiment, the lifting and transferring device is provided with two: the structure of the upper wire lifting device 2 and the lower wire lifting device 4 is completely symmetrical relative to the riveting assembly track device 3.

As shown in fig. 7-8, it is a structure of the needle threading lifting device. The upper line lifting device 2 comprises an upper line lifting frame 29, an upper line lifting motor 30, an upper line lifting transmission component 31, an upper line balancing weight 32, an upper line lifting platform 33, an upper line upper limit switch 34 and an upper line lower limit switch 35. The upper wire lifting motor 30 is installed on the upper portion of the upper wire lifting frame 29. The upper line lifting transmission assembly 31 comprises an upper line transmission shaft 36, an upper line lifting chain wheel 37 (an upper line lifting chain wheel 37a, an upper line lifting chain wheel 37b) and an upper line lifting chain 38 (an upper line lifting chain 38a, an upper line lifting chain 38b), wherein the upper line lifting chain 38 is hung on the upper line lifting chain wheel 37 in a surrounding manner, one end of the upper line lifting chain is connected with the upper line lifting platform 33, and the other end of the upper line lifting chain is connected with the upper line balancing weight 32. The upper line lifting chain wheel 37 is arranged on the upper line transmission shaft 36, and the upper line transmission shaft 36 is connected with the output end of the upper line lifting motor 30. The upper thread lifting platform 33 comprises an upper thread transverse conveying mechanism 39, an upper thread longitudinal transmission assembly 40, an upper thread trolley in-place induction switch 41, an upper thread conveying induction switch I42, an upper thread conveying induction switch II 43, an upper thread conveying chain return induction switch 44, an upper thread transverse conveying mechanism induction switch I45 and an upper thread transverse conveying mechanism induction switch II 46. The upper thread transverse conveying mechanism 39 comprises an upper thread transverse motor 47, an upper thread transverse conveying mechanism bracket 48, an upper thread transverse driving chain wheel 49, an upper thread transverse driven chain wheel 50, an upper thread transverse conveying chain 51, an upper thread pushing block I52, an upper thread pushing block II 53, an upper thread sensing block 54 and an upper thread transverse linear guide rail 55. An upper line transverse motor 47 is arranged on an upper line transverse conveying mechanism bracket 48, and the output end of the upper line transverse motor is connected with an upper line transverse driving chain wheel 49. An upper line transverse conveying chain 51 is arranged on the upper line transverse driving chain wheel 49 and the upper line transverse driven chain wheel 50 in a surrounding mode. The upper thread pushing block I52, the upper thread pushing block II 53 and the upper thread sensing block 54 are arranged at specific positions of the upper thread transverse conveying chain 51. Two horizontal upper thread transverse linear guides 55 are mounted on the upper thread transverse conveying mechanism bracket 48. The upper thread longitudinal transmission assembly 40 comprises an upper thread rack 56, an upper thread longitudinal linear guide rail 57, an upper thread longitudinal motor 58 and an upper thread longitudinal transmission gear 59. The upper wire rack 56 and the two upper wire longitudinal linear guide rails 57 are horizontally and longitudinally arranged on the upper wire lifting platform 33. The upper thread longitudinal motor 58 is mounted on the upper thread transverse conveying mechanism bracket 48, and the output end of the upper thread longitudinal motor is connected with an upper thread longitudinal transmission gear 59. The upper wire longitudinal drive gear 59 is engaged with the upper wire rack 56. An on-line trolley in-place inductive switch 41, an on-line conveying inductive switch I42, an on-line conveying inductive switch II 43 and an on-line conveying chain return inductive switch 44 are all arranged on an on-line transverse conveying mechanism support 48. An upper line upper limit switch 34 and an upper line lower limit switch 35 are respectively installed at the upper and lower portions of the upper line lifting frame 29.

As shown in fig. 8-9, a downline elevator arrangement. The lower line lifting device 4 comprises a lower line lifting frame 68, a lower line lifting motor 69, a lower line lifting transmission assembly 70, a lower line balancing weight 71, a lower line lifting platform 72, a lower line upper limit switch 73 and a lower line lower limit switch 74. The lower wire elevating motor 69 is installed on the upper portion of the lower wire elevating frame 68. The lower line lifting transmission assembly 70 includes a lower line transmission shaft 77, a lower line lifting sprocket 78 (lower line lifting sprocket 78a, lower line lifting sprocket 78b), and a lower line lifting chain 79 (lower line lifting chain 79a, lower line lifting chain 79 b). The lower wire lifting chain 79 is suspended around the lower wire lifting sprocket 78, one end of which is connected to the lower wire lifting platform 72 and the other end of which is connected to the lower wire weight 71. The lower wire lifting sprocket 78 is mounted on the lower wire drive shaft 77, and the lower wire drive shaft 77 is connected to the output of the lower wire lifting motor 69. The lower line lifting platform 72 comprises a lower line transverse conveying mechanism 80, a lower line longitudinal transmission assembly 81, a lower line trolley in-place sensing switch 82, a lower line conveying sensing switch I83, a lower line conveying sensing switch II 84, a lower line conveying chain return sensing switch 85, a lower line transverse conveying mechanism sensing switch I86 and a lower line transverse conveying mechanism sensing switch II 87. The lower wire transverse conveying mechanism 80 comprises a lower wire transverse motor 88, a lower wire transverse conveying mechanism support 89, a lower wire transverse driving chain wheel 90, a lower wire transverse driven chain wheel 91, a lower wire transverse conveying chain 92, a lower wire pushing block I93, a lower wire pushing block II 94, a lower wire induction block 95 and a lower wire transverse linear guide rail 96. The lower line traverse motor 88 is mounted on a lower line traverse conveyor support 89, the output of which is connected to a lower line traverse drive sprocket 90. The lower line transverse conveying chain 92 is arranged on the lower line transverse driving chain wheel 90 and the lower line transverse driven chain wheel 91 in a surrounding mode. The lower wire pushing block I93, the lower wire pushing block II 94 and the lower wire sensing block 95 are arranged at specific positions of the lower wire transverse conveying chain 92. Two horizontal and transverse downline transverse linear guides 96 are mounted on the downline transverse conveyor mechanism bracket 89. The lower line longitudinal transmission assembly 81 comprises a lower line rack 97, a lower line longitudinal linear guide 98, a lower line longitudinal motor 99, and a lower line longitudinal transmission gear 100. The lower wire rack 97 and the two lower wire longitudinal linear guide rails 98 are both horizontally and longitudinally mounted on the lower wire lifting platform 72. The lower line longitudinal motor 99 is mounted on the lower line transverse conveying mechanism bracket 89, and the output end thereof is connected with the lower line longitudinal transmission gear 100. The lower line longitudinal drive gear 100 meshes with the lower line rack 97. The lower line trolley in-place inductive switch 82, the lower line conveying inductive switch I83, the lower line conveying inductive switch II 84 and the lower line conveying chain return inductive switch 85 are all installed on the lower line transverse conveying mechanism support 89. The lower line upper limit switch 73 and the lower line lower limit switch 74 are installed at the upper and lower portions of the lower line elevating frame 68, respectively.

The rail set structure is assembled for riveting as shown in fig. 11. The riveting assembly track device 3 comprises a riveting assembly linear guide rail 60, a riveting assembly motor 61, a riveting assembly transmission assembly 62, a riveting assembly driving chain 63 and a plurality of riveting assembly driving blocks 64. The riveting assembly linear guide rails 60 are arranged at the upper side of the riveting assembly rail device 3 in a transverse mode. The rivet fitting motor 61 is mounted on one end of the rivet fitting rail device 3. The riveting assembly transmission assembly 62 comprises a riveting assembly driven sprocket 65, a riveting assembly driving sprocket 66 and a riveting assembly rotating shaft 67. The riveting assembly driving sprocket 66 is connected with an output shaft of the riveting assembly motor 61, and the riveting assembly driven sprocket 65 is rotatably mounted with the riveting assembly track device 3 through a riveting assembly rotating shaft 67; the riveting assembly driving chain 63 is arranged on the riveting assembly driven sprocket 65 and the riveting assembly driving sprocket 66 in a surrounding mode. The riveting assembly driving chain 63 is parallel to the riveting assembly linear guide rails 60 and is located between the two riveting assembly linear guide rails 60. The plural rivet fitting driving blocks 64 (rivet fitting driving block 64a, rivet fitting driving block 64b, rivet fitting driving block 64c, etc.) are installed on the rivet fitting driving chain 63 at regular intervals and uniformly.

As shown in fig. 12, a transfer rail device structure. The transfer track device 5 comprises a transfer linear guide 101, a transfer motor 102, a transfer transmission assembly 103, a transfer drive chain 104, a plurality of transfer drive blocks 105, a plurality of transfer drive bolts 106 and a transfer car stopping mechanism 107, the transfer track device 5 is erected on the upper portion of the riveting assembly track device 3 through a transfer track support frame 108, and the transfer directions of the transfer track device 5 and the riveting assembly track device 1 are opposite. Two transfer linear guide rails 101 are installed on the upper portion of the transfer rail device 5. The transfer motor 102 is mounted at one end of the transfer rail device 5. The transfer drive assembly 103 includes a transfer drive sprocket 109, a transfer driven sprocket 110, and a transfer rotational shaft 111. The transfer driving chain wheel 109 is connected with an output shaft of the transfer motor 102, and the transfer driving chain 104 is arranged on the transfer driving chain wheel 109 and the transfer driven chain wheel 110 in a surrounding mode. The transfer drive chain 104 is parallel to the transfer linear guide 101 and is located between the two transfer linear guides 101. The transfer drive blocks 105 are provided in plural numbers, and are uniformly mounted on the transfer drive chain 104 at regular intervals. Transfer drive bolt 106 is attached to transfer drive block 105, and is provided in plurality (transfer drive bolt 106a, transfer drive bolt 106b, transfer drive bolt 106c, and the like) correspondingly. The transfer car stopping mechanism 107 includes a cylinder 112 and a car stopping rod 113 connected to the cylinder shaft of the cylinder 112, and is installed at the end of the transfer rail device 5 in the conveying direction. The head end of the transfer track device 5 in the conveying direction is provided with a second off-line on-track driving-in inductive switch 76 and a first off-line on-track driving-in inductive switch 75 which respectively detect that the first riveting trolley 8 and the second riveting trolley 9 drive in place.

As shown in fig. 13-54, the operation method of the three-dimensional circulating frame riveting production line comprises the following specific steps:

firstly, as shown in fig. 13, when the first riveting trolley 8 reaches the upper rail exit station 704, the upper line lifting platform 33 is located at the first upper line station 706, the first trolley roller 15d reaches the first upper line conveying induction switch 42, the second trolley roller 26b reaches the second upper line conveying induction switch 43, the first upper line conveying induction switch 42 and the second upper line conveying induction switch 43 receive the trigger signal at the same time, the logic switch controller 6 controls the action of the upper line transverse motor 47, and the upper line lifting device 2 starts to work. As shown in fig. 14, the upper thread transverse motor 47 drives the upper thread transverse conveying chain 51 to move in the direction indicated by the arrow (r) in fig. 14 through the upper thread transverse driving sprocket 49, and the upper thread pushing block one 52, the upper thread pushing block two 53 and the upper thread sensing block 54 move along with the upper thread transverse conveying chain 51 in the direction indicated by the arrow (r) in fig. 14. In the moving process, the first wire feeding propelling block 52 contacts and pushes the first riveting trolley 8 (the first trolley support frame 10), the first riveting trolley 8 contacts and pushes the second riveting trolley 9, and the first riveting trolley and the second riveting trolley move together in the direction shown by an arrow 14 in the figure.

As shown in fig. 15-17, when the second cart roller 26b reaches the position of the upper line cart in-place sensing switch 41, the upper line cart in-place sensing switch 41 receives the trigger signal, the logic switch controller 6 controls the upper line lifting motor 30 to move, and the upper line lifting motor 30 drives the upper line lifting platform 33 to descend according to the arrow shown in fig. 15 by the upper line lifting transmission assembly 31. When the upper line lifting platform 33 descends to the second upper line station 707, the upper line lower limit switch 35 receives the trigger signal, the logic switch controller 6 controls the upper line lifting motor 30 to pause, and the upper line lifting platform 33 stops descending. Subsequently, as shown in fig. 18, the logic switch controller 6 controls the operation of the upper thread longitudinal motor 58, and the output end of the upper thread longitudinal motor 58 drives the upper thread transverse conveying mechanism 39 to move according to the direction indicated by the arrow (r) in fig. 18 through the upper thread longitudinal transmission assembly 40. As shown in fig. 19, when the two upper wire transverse linear guides 55 in the upper wire transverse conveying mechanism 39 and the two riveting assembly linear guides 60 in the riveting assembly track device 3 are respectively positioned on the same straight line and connected end to end, the first upper wire transverse conveying mechanism induction switch 45 receives a trigger signal, the logic switch controller 6 controls the upper wire longitudinal motor 58 to pause, and the upper wire transverse conveying mechanism 39 stops moving.

Then, the start conveying button is manually pressed according to the production beat, the upper thread transverse motor 47 acts, as shown in fig. 20, the output end of the upper thread transverse motor 47 drives the upper thread transverse conveying chain 51 to move according to the direction indicated by the arrow (fifthly) in fig. 20 through the upper thread transverse driving chain wheel 49 and the upper thread transverse driven chain wheel 50, so that the upper thread pushing block (52), the upper thread pushing block (53) and the upper thread sensing block (54) move along with the upper thread transverse conveying chain 51 according to the direction indicated by the arrow (fifthly) in fig. 20. The second upper propelling block 53 contacts and pushes the second riveting trolley 9 (the second trolley support frame 22) in the moving process, the second riveting trolley 9 contacts and pushes the first riveting trolley 8, and the two move together according to the direction indicated by an arrow (fifthly) in fig. 20.

As shown in fig. 21 to 23, when the second upper thread pushing block 53 is disengaged from the second riveting trolley 9 and the conveying completion button is manually pressed, the logic switch controller 6 controls the action of the upper thread transverse motor 47 to drive the upper thread transverse conveying chain 51 to move in the direction indicated by the arrow (sixthly) in fig. 22 through the upper thread transverse driving sprocket 49 and the upper thread transverse driven sprocket 50, so that the first upper thread pushing block 52, the second upper thread pushing block 53 and the upper thread sensing block 54 move in the direction indicated by the arrow (sixthly) in fig. 22 along with the upper thread transverse conveying chain 51. When the upper thread sensing block 54 moves to the position of the upper thread conveying chain return sensing switch 44, the upper thread conveying chain return sensing switch 44 receives a trigger signal, and the logic switch controller 6 sequentially controls the upper thread transverse motor 47 to stop moving and the upper thread lifting motor 30 to start moving, as shown in fig. 24, the output end of the upper thread lifting motor 30 drives the upper thread lifting platform 33 to ascend according to the direction of an arrow (c) in fig. 24 through the upper thread lifting transmission assembly 31. When the upper line lifting platform 33 rises to the first upper line station 706, the upper line limit switch 34 receives the trigger signal, the logic switch controller 6 controls the upper line lifting motor 30 to pause, and the upper line lifting platform 33 stops rising. The logic switch controller 6 controls the motion of the upper thread longitudinal motor 58, as shown in fig. 26-27, and the output end of the upper thread longitudinal motor 58 drives the upper thread transverse conveying mechanism 39 to move according to the arrow head shown in fig. 26 through the upper thread longitudinal transmission assembly 40. When the two upper-line transverse linear guide rails 55 in the upper-line transverse conveying mechanism 39 are respectively positioned on the same straight line with the two transfer linear guide rails 101 in the transfer track device 5 and connected end to end, the second upper-line transverse conveying mechanism induction switch 46 receives a trigger signal, the logic switch controller 6 controls the upper-line longitudinal motor 58 to pause, and the upper-line transverse conveying mechanism 39 stops moving.

Second, as shown in fig. 28, when the second riveting trolley 9 is located at the lower rail entering station 701, the first riveting trolley 8 is located at the right side of the second riveting trolley 9. At this time, the second swing pin 27 of the second riveting trolley 9 is in a natural vertical state under the action of gravity, the lower surface of the second swing pin 27 is located below the upper surface of the riveting assembly driving block 64a, one surface of the second swing pin is in plane contact with the local plane of the second trolley support frame 22, the other surface of the second swing pin is in contact with the moving riveting assembly driving block 64a, at this time, the swing support 18 of the first riveting trolley 8 is in contact with the first trolley support frame 10, the lower surface of the spring buckle plate 20 is located above the upper surface of the riveting assembly driving block 64, and the riveting assembly driving block 64 is not in contact with the spring buckle plate 20, so that the riveting assembly driving block 64a is in contact with and pushes the second riveting trolley 9 to move rightwards, and the first riveting trolley 9 is in contact with and pushes the first riveting trolley 8 to move rightwards together. As shown in fig. 29-30, when the first riveting trolley 8 advances, the outside applies a rightward thrust F1 to the first riveting trolley 8, and the advancing speed of the first riveting trolley 8 is greater than the linear speed of the riveting assembly driving chain 63, then the first trolley swing pin 16 contacts with the riveting assembly driving block 64b and rotates by a certain angle γ, the first riveting trolley 8 continues to advance at a constant speed, and the first trolley swing pin 16 is separated from the riveting assembly driving block 64b and returns to the natural vertical state. By analogy, when the application of the pushing force F1 is stopped, the first carriage swing pin 16 will come into contact with the rivet fitting drive block 64c, and the first rivet fitting carriage 8 will come into contact with the rivet fitting drive block 64c and continue to advance. At this moment, the first riveting trolley 8 and the second riveting trolley 9 are driven to run rightwards at a low speed along with the riveting assembly driving chain 63 in an equidistant mode, two longitudinal beams to be installed are placed on the two first trolley supporting pulleys 11 and the two corresponding second trolley supporting pulleys 23, a plurality of cross beams to be riveted and installed are placed between the two longitudinal beams, in the process that the first riveting trolley 8 and the second riveting trolley 9 run rightwards at a low speed, an operator conducts riveting assembly operation on the longitudinal beams and the cross beams through the first trolley movable spanner 12 and the second trolley movable spanner 24, the frame can be adjusted in a rolling mode through the first trolley supporting pulley 11 and the second trolley supporting pulley 23, and convenience in assembly is improved. Before the first riveting trolley 8 reaches the lower track exiting station 702, the frame needs to be assembled, and the assembled frame is lifted away; the riveting mobile platforms 1 can be used for simultaneous frame assembly operation on the riveting assembly track device 3.

As shown in fig. 31-33, when the first riveting trolley 8 reaches the lower track exit station 702, the first trolley swing pin 16 is out of contact with the riveting assembly drive block 64c, and the first riveting trolley 8 stops moving. The second riveting trolley 9 is kept in contact with the riveting assembly driving block 64a and continues, and further contacts with the first riveting trolley 8 and pushes to travel. When the second riveting trolley 9 reaches the lower rail exiting station 702, the second trolley swing pin 27 is out of contact with the riveting assembly driving block 64a, and the second riveting trolley 9 stops moving.

Thirdly, as shown in fig. 34, when the second riveting trolley 9 reaches the lower track exit station 704, the first trolley roller 15c of the first riveting trolley 8 reaches the position of the second lower line conveying induction switch 84, the second trolley roller 26a of the second riveting trolley 9 reaches the position of the first lower line conveying induction switch 83, the first lower line conveying induction switch 83 and the second lower line conveying induction switch 84 are triggered simultaneously, the logic switch controller 6 controls the action of the transverse lower line motor 88, and the lower line lifting device 4 works. The lower wire transverse motor 88 drives the lower wire transverse conveying chain 92 to move in the direction shown by the arrow (r) in fig. 34 through the lower wire transverse driving chain wheel 90 and the lower wire transverse driven chain wheel 91, meanwhile, a lower wire pushing block I93, a lower wire pushing block II 94 and a lower wire induction block 95 on the lower wire transverse conveying chain 92 move in the direction shown by the arrow (r) in fig. 34, the lower wire pushing block I93 contacts and pushes the second riveting trolley 9, the second riveting trolley 9 contacts and pushes the first riveting trolley 8, and the two trolleys advance in the direction shown by the arrow (r) in fig. 34.

As shown in fig. 35, when the first trolley roller 15c reaches the position of the lower trolley in-place sensing switch 82, the lower trolley in-place sensing switch 82 receives the trigger signal, the logic switch controller 6 controls the lower transverse motor 88 to pause and the lower lifting motor 69 to start to operate in sequence, and the lower lifting transmission assembly 70 drives the lower lifting platform 72 according to fig. 36Middle arrow head

When the lower line lifting platform 72 is lifted to the position of the second upper line station 707 as shown in fig. 36-38, the lower line upper limit switch 73 receives a trigger signal, the logic switch controller 6 controls the lower line lifting motor 69 to stop the operation of the lower line lifting motor 69, and the lower line lifting platform 72 stops lifting. The logic switch controller 6 controls the lower line longitudinal motor 99 to act, and drives the lower line transverse conveying mechanism 80 through the lower line longitudinal transmission assembly 81 according to the arrow shown in figure 37

The direction of movement shown. When the two lower horizontal linear guides 96 are respectively in the same straight line with the two transfer linear guides 101 in the transfer track device 5, at this time, the first lower horizontal conveying mechanism induction switch 86 receives the trigger signal, the logic switch controller 6 sequentially controls the pause action of the lower vertical motor 99, the start action of the lower horizontal motor 88, the stop action of the lower horizontal conveying mechanism 80, and the lower horizontal driving sprocket 90 and the lower horizontal driven sprocket 91 drive the lower horizontal conveying chain 92 to follow the arrow in fig. 39

The direction shown is changed, so that the lower thread pushing block 93, the lower thread pushing block 94 and the lower thread sensing block 95 on the lower thread transverse conveying chain 92 are as shown by the arrows in FIG. 39

The direction of movement shown. The second lower wire pushing block 94 contacts and pushes the first riveting trolley 8, the first riveting trolley 8 contacts and pushes the second riveting trolley 9, and the two contact and push the first riveting trolley 8 and the second riveting trolley 9 together according to arrows in the figure 40

The direction of movement shown. As shown in fig. 41 to 42, when the first riveting trolley 8 reaches the upper track driving-in station 703, the second lower wire pushing block 94 is separated from the contact with the first riveting trolley 8, and the first riveting trolley 88 and the second riveting trolley 9 stop moving.

Fourthly, as shown in fig. 49, when the transfer track device 5 is in the working state, the transfer motor 102 is operated, and the transfer motor 102 drives the transfer driving chain 104 through the transfer transmission assembly 103 according to the arrow in fig. 49

The direction shown, and thus transfer drive bolt 106 with transfer drive chain 104, follows the arrow in FIG. 49

The direction shown goes forward. At this time, the swing frame 18 in the first riveting trolley 8 contacts with the first trolley support frame 10, the lower surface of the spring buckle plate 20 is positioned below the upper surface of the transfer driving bolt 106a, and the spring buckle plate 20 contacts with the transfer driving bolt 106a, so that the transfer driving bolt 106a contacts with and pushes the first riveting trolley 8 through the spring buckle plate 20, the first riveting trolley 8 contacts with and pushes the second riveting trolley 9, and the two trolleys are together in accordance with the arrow in fig. 49

The direction shown goes forward. In the advancing process, as shown in fig. 43, after the second trolley roller 26b passes through the first position 75 of the off-line on-track entering inductive switch and the first trolley roller 15d passes through the second position 76 of the off-line on-track entering inductive switch, the first riveting trolley 8 and the second riveting trolley 9 continue to advance.

Fifthly, as shown in fig. 43, when the second trolley roller 26b reaches the first 75 position of the first on-track entering inductive switch and the first trolley roller 15c reaches the second 76 position of the second on-track entering inductive switch, the first 75 position of the first on-track entering inductive switch and the second 76 position of the second on-track entering inductive switch are triggered at the same time, as shown in fig. 44, the logic switch controller 6 controls the action of the lower line lifting motor 69, and the lower line lifting platform 72 is driven by the lower line lifting transmission component 70 according to the arrow in fig. 44

In the direction shown belowAnd when the lower line lifting platform 72 descends to the position 708 of the first lower line station, the lower line limit switch 74 is triggered, the logic switch controller 6 controls the lower line lifting motor 69 to pause, and the lower line lifting platform 72 stops descending. As shown in fig. 45-46, the logic switch controller 6 controls the lower thread longitudinal motor 99 to operate, and the lower thread transverse conveying mechanism 80 is driven by the lower thread longitudinal transmission assembly 81 according to the arrow shown in fig. 45

The direction of movement shown. When the two lower horizontal linear guides 96 of the lower horizontal conveying mechanism 80 correspond to the two riveting linear guides 60 of the riveting assembly track device 3 one by one and are on the same straight line, at this time, the second lower horizontal conveying mechanism inductive switch 87 receives the trigger signal, the logic switch controller 6 controls the temporary stop of the lower vertical motor 99 and the start of the lower horizontal motor 88 in turn, the lower horizontal conveying mechanism 80 stops moving, as shown in fig. 47-48, the lower horizontal driving sprocket 90 and the lower horizontal driven sprocket 91 drive the lower horizontal conveying chain 92 to follow the arrow in fig. 47

The direction of movement shown. When the lower conveying chain 92 upper and lower line induction blocks 95 reach the position of the lower conveying chain return induction switch 85, the lower conveying chain return induction switch 85 receives a trigger signal, and the logic switch controller 6 controls the lower transverse motor 88 to stop operating.

And sixthly, after the second trolley roller 26b passes through the lower line upper track and enters the first position 75 of the induction switch and the first trolley roller 15c passes through the lower line upper track and enters the second position 76 of the induction switch, the first riveting trolley 8 and the second riveting trolley 9 continue to advance. As shown in fig. 50, when the second riveting trolley 9 reaches the upper rail waiting station 705, if the logic switch controller 6 does not receive the trigger signal, the air cylinder 112 does not act, the stop lever 113 is in the default extending state, the second riveting trolley 9 is in contact with the stop lever 113, at this time, the first trolley swing pin 16 is in the natural vertical state under the action of gravity, and the lower surface of the first trolley swing pin 16 is located at the rotating position 705One face of the transfer drive bolt 106b is in contact with the moving transfer drive bolt 106b below the upper face thereof, so that, as shown in fig. 51, the moving transfer drive bolt 106b contacts the first riveting carriage 8, so that the first carriage swing pin 16 is turned by a certain angle α, and the transfer drive bolt 106b continues to follow the arrow in fig. 49

Advancing in the direction shown, the first trolley swing pin 16 disengages from the transfer drive bolt 106b and returns to a natural, upright position. As shown in FIG. 52, the transfer driving bolt 106b continues to advance, contacts the spring buckle plate 20, the compression distance of the compression spring 19 is increased, the spring buckle plate 20 rotates by a certain angle theta, the swing bracket 18 rotates upwards and is lifted, and the transfer driving bolt 106b continues to advance over the spring buckle plate 20 and is separated from the contact with the spring buckle plate 20.

As shown in fig. 53, the second carriage swing pin 27 is in a natural vertical state under the gravity, the lower surface of the second carriage swing pin 27 is located below the upper surface of the transfer drive bolt 106b, one surface of the second carriage swing pin 27 is in contact with the moving transfer drive bolt 106b, the second carriage swing pin 27 rotates by a certain angle α, and the transfer drive bolt 106b continues to follow the arrow in fig. 49

Advancing in the direction shown, the second trolley swing pin 27 comes out of contact with the transfer drive bolt 106b and returns to the natural vertical position. Therefore, when the stop lever 113 is in the default extended state, the first riveting trolley 8 and the second riveting trolley 9 stop moving.

When the logic switch controller 6 receives a trigger signal of the second induction switch 46 of the upper-line transverse conveying mechanism, namely the two upper-line transverse linear guide rails 55 and the two transfer linear guide rails 101 are positioned on the same straight line and connected end to end, the logic switch controller 6 controls the cylinder 112 to contract, as shown in fig. 54, the stop lever 113 is converted from the extending state to the retracting state, the second riveting trolley 9 is separated from the stop lever 113, the spring buckle plate 20 in the first riveting trolley 8 is contacted with the transfer driving bolt 106c in the movement, and the transfer driving bolt 106c is contacted and connected through the spring buckle plate 20The first riveting trolley 8 is pushed, the first riveting trolley 8 contacts and pushes the second riveting trolley 9, both according to the arrow in figure 54

The direction shown goes forward. As shown in fig. 54, when the first riveting trolley 8 reaches the upper track exiting station 704, the spring buckle plate 20 is separated from the transfer driving bolt 106c, the first riveting trolley 8 stops moving, and the second riveting trolley 9 stops moving.

And seventhly, completing the transfer of the riveting trolley and returning to the initial station, and repeating the work from the first step to the sixth step.

The steps from the first step to the sixth step are repeatedly executed, the riveting mobile platform 1 can circularly run on the upper line lifting device 2, the riveting assembly track device 3, the lower line lifting device 4 and the transfer track device 5 through the three-dimensional circulating type frame riveting production line, and the riveting mobile platform riveting production line has the advantages of being high in automation efficiency and working efficiency, reducing working strength, saving labor and reducing workshop environment pollution.

The three-dimensional circulating type frame riveting production line and the operation method thereof disclosed by the invention have the advantages of simple structure and good practicability. The riveting mobile platform is assembled on line through the riveting assembling rail device, lifted through the off-line lifting device, transferred back to the initial end through the transferring rail device and descended through the on-line lifting device, so that the recycling of the riveting mobile platform is realized, the riveting assembling production efficiency of the frame is improved, the labor intensity is reduced, the production environment is effectively improved, the production cost is saved, and the production takt is stabilized; and the whole body is of a vertical quadrilateral structure, so that the occupied space is small, and the occupied space of a workshop is effectively saved.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The terms "upper", "lower", "outside", "inside" and the like in the description and claims of the present invention and the above drawings are used for distinguishing relative positions if any, and are not necessarily given qualitatively. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A three-dimensional circulating type frame riveting production line is characterized by comprising a riveting moving platform (1), a riveting assembling track device (3), a transferring track device (5), a logic switch controller (6) and a lifting transferring device;

the riveting movable platform (1) is used for assembling and riveting the frame support;

the transfer rail device (5) is arranged at the upper part of the riveting assembly rail device (3), and the lifting transfer device comprises an upper line lifting device (2) and a lower line lifting device (4) which are symmetrically arranged at two ends of the riveting assembly rail device (3); the riveting assembly track device (3), the lower wire lifting device (4), the transfer track device (5) and the upper wire lifting device (2) are sequentially arranged and form a vertical quadrilateral structure;

the riveting assembly track device (3) conveys the riveting mobile platform (1) and realizes the on-line riveting assembly of the frame; the offline lifting device (4) lifts and conveys the riveting mobile platform (1) from the riveting assembly track device (3) to the transfer track device (5);

the transfer track device (5) conveys the riveting mobile platform (1) in a rotary manner;

the upper line lifting device (2) descends and conveys the riveting moving platform (1) from the transfer track device (5) to the riveting assembly track device (3);

and the logic switch controller (6) is used for receiving the sensor signal and controlling the power mechanism to operate.

2. The three-dimensional circulating type frame riveting production line according to claim 1, wherein the riveting mobile platform (1) comprises a first riveting trolley (8) and a second riveting trolley (9); a first trolley supporting pulley (11) and a second trolley supporting pulley (23) which support the frame longitudinal beam are respectively arranged on the first riveting trolley (8) and the second riveting trolley (9); a first trolley monkey wrench (12) and a second trolley monkey wrench (24) are respectively arranged on the first riveting trolley (8) and the second riveting trolley (9); the bottoms of the first riveting trolley (8) and the second riveting trolley (9) are also respectively provided with a first trolley roller (15) and a second trolley roller (26).

3. The three-dimensional circulating type frame riveting production line according to claim 2, wherein the upper line lifting device (2), the riveting assembly track device (3), the lower line lifting device (4) and the transfer track device (5) are respectively provided with a propelling component for propelling the riveting moving platform (1).

4. The three-dimensional circulating type frame riveting production line according to claim 3, wherein a second trolley movement control mechanism (25) matched with the propelling component is arranged on the second riveting trolley (9); a first trolley motion control mechanism I (13) and a second trolley motion control mechanism II (14) which are matched with the propelling component are arranged on the first riveting trolley (8); the first riveting trolley (8) comprises a first trolley support frame (10) and four first trolley rollers (15) arranged at the bottom of the first trolley support frame (10); the first trolley movement control mechanism I (13) comprises a first trolley swinging pin (16) rotatably arranged at the lower part of the first trolley support frame (10); the second trolley motion control mechanism (14) comprises a swinging support (18) rotatably arranged at the lower part of the first trolley support frame (10), and the swinging support (18) is connected with a spring buckle plate (20) through a compression spring (19); the second riveting trolley (9) comprises a second trolley support frame (22) and four second trolley rollers (26) arranged at the bottom of the second trolley support frame (22); the second trolley movement control mechanism (25) comprises a second trolley swinging pin (27) which is rotatably arranged at the lower part of the second trolley supporting frame (22).

5. The three-dimensional circulating type frame riveting production line according to claim 3, wherein the riveting assembly rail device (3) is provided with a riveting assembly linear guide rail (60) and a riveting assembly driving chain (63) which guide the first trolley roller (15) and the second trolley roller (26); the riveting assembly driving chain (63) is provided with a plurality of riveting assembly driving blocks (64) which push the first riveting trolley (8) and the second riveting trolley (9) at intervals.

6. The three-dimensional circulating type frame riveting production line according to claim 3, wherein the transfer rail device (5) is installed above the riveting assembly rail device (3) through a transfer rail support frame (108); a transfer linear guide rail (101) and a transfer driving chain (104) which guide the first trolley roller (15) and the second trolley roller (26) are arranged on the transfer rail device (5); a plurality of transfer driving blocks (105) are arranged on the transfer driving chain (104) at intervals, and transfer driving bolts (106) for pushing the first riveting trolley (8) and the second riveting trolley (9) are arranged on the transfer driving blocks (105); a transfer car stopping mechanism (107) for stopping the first riveting trolley (8) and the second riveting trolley (9) is arranged at the tail end of the transfer track device (5) in the conveying direction; the head end of the transfer track device (5) in the conveying direction is provided with a second off-line on-track driving-in inductive switch (76) and a first off-line on-track driving-in inductive switch (75) which respectively detect that the first riveting trolley (8) and the second riveting trolley (9) drive in place.

7. The three-dimensional circulating type frame riveting production line according to claim 3, wherein the upper line lifting device (2) comprises an upper line lifting frame (29) and an upper line lifting platform (33) vertically and slidably mounted on the upper line lifting frame (29); an upper-line transverse conveying mechanism (39) is horizontally and longitudinally slidably mounted on the upper-line lifting platform (33), an upper-line transverse conveying chain (51) and an upper-line transverse linear guide rail (55) are mounted on the upper-line transverse conveying mechanism (39), and a pushing block for pushing the first riveting trolley (8) and the second riveting trolley (9) is arranged on the upper-line transverse conveying chain (51).

8. The three-dimensional circulating type frame riveting production line according to claim 7, wherein the upper line lifting frame (29) is provided with an upper line upper limit switch (34) and an upper line lower limit switch (35) which respectively monitor the up-down movement of the upper line lifting platform (33).

9. The operation method of the three-dimensional circulating type frame riveting production line is characterized by comprising the following steps of: