A high-strength frame for automobile sleeper and its automated assembly platform

Abstract

The present invention relates to a high-strength frame for a sleeper car and an automated assembly platform thereof, belonging to the technical field of automobile parts, comprising a vertically arranged crossbeam and a sub-beam, wherein the crossbeam is arranged in three groups at equal intervals, and the sub-beam is arranged in five groups at equal intervals. A clamping groove for positioning the sub-beam is provided on the crossbeam, the sub-beam is clamped in the clamping groove, a threaded hole for fixing the crossbeam is provided at the bottom of the clamping groove, a step hole is provided at a position corresponding to the sub-beam and the threaded hole, a fixing screw or a support leg is threadedly connected in the threaded hole, the support leg is located at both ends of the crossbeam on both sides, a first hexagonal groove is provided at the end of the fixing screw away from the crossbeam, a second hexagonal groove is provided at the end of the support leg away from the crossbeam, and the side length of the second hexagonal groove is greater than the side length of the first hexagonal groove. The crossbeam and the sub-beam are fixed by fixing screws and support legs, and assembly is simple and fast. In addition, when the sleeper frame is not in use, the crossbeam and the sub-beam can be disassembled and recycled.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile parts, in particular to a high-strength frame for an automobile sleeper and an automated assembly platform thereof. Background Art

[0002] In order to reduce the number of times goods are loaded and unloaded, and to reduce the loss of goods and the cost of loading and unloading, long-distance freight transportation is usually adopted. Due to the long distance, in order to avoid driver fatigue, the driver needs to rest after driving for a certain period of time. In order for the driver to get enough rest, a berth is set up in the car cab for the driver to rest. Due to the bumpy road, the frame of the berth is usually required to have a certain strength. The various parts of the existing berth frame (such as legs, etc.) are fixed by manual welding. Due to the large number of parts, the welding efficiency is low. In response to the problems in the existing technology, we propose a high-strength frame for automobile berths and an automated assembly platform for it. Summary of the Invention

[0003] In view of the above problems in the prior art, the present invention provides a high-strength frame for a sleeper car and an automated assembly platform thereof, which are achieved through the following technical solutions:

[0004] A high-strength frame for a car sleeper and an automated assembly platform thereof, comprising a vertically arranged crossbeam and a sub-beam, wherein the crossbeam and sub-beam are arranged in several groups at equal intervals, a clamping groove for positioning the sub-beam is provided on the crossbeam, the sub-beam is clamped in the clamping groove, a threaded hole for fixing the crossbeam is provided at the bottom of the clamping groove, a step hole is provided at a position corresponding to the threaded hole on the sub-beam, fixing screws or support legs are threadedly connected in the threaded hole, the support legs are located at both ends of the crossbeams on both sides, a first hexagonal groove is provided at the end of the fixing screw away from the crossbeam, a second hexagonal groove is provided at the end of the support leg away from the crossbeam, the side length of the second hexagonal groove is greater than the side length of the first hexagonal groove, and the first hexagonal groove is provided at the bottom of the second hexagonal groove.

[0005] The present invention is further configured as follows: the cross beams are arranged in three groups at equal intervals, and the auxiliary beams are arranged in five groups at equal intervals.

[0006] An automated assembly platform for high-strength frames of automobile sleepers comprises a supporting platform, wherein the upper end surface of the supporting platform is provided with a crossbeam guide assembly, a sub-beam guide assembly, a crossbeam positioning assembly, a sub-beam positioning assembly, a crossbeam conveying assembly, a sub-beam conveying assembly and a fixing assembly; the crossbeam guide assembly is provided at one end of the supporting platform in the length direction, the crossbeam positioning assembly is provided at the other end of the supporting platform in the length direction, the crossbeam conveying assembly is provided between the crossbeam guide assembly and the crossbeam positioning assembly, the sub-beam guide assembly is provided at one end in the width direction of the supporting platform, the sub-beam positioning assembly is provided at the other end in the width direction of the supporting platform, the sub-beam conveying assembly is provided between the sub-beam guide assembly and the sub-beam positioning assembly, and a unloading assembly is provided in the inner cavity of the supporting platform, and the unloading assembly passes through the upper end surface of the supporting platform.

[0007] The present invention is further configured as follows: the crossbeam guide assembly and the sub-beam guide assembly each include two parallel guide blocks, a feed port is formed between the two guide blocks, the feed port opening is arranged in an arc shape, and the number of the feed ports is the sum of the number of crossbeams and sub-beams.

[0008] The present invention is further configured as follows: the crossbeam positioning assembly and the sub-beam positioning assembly both include a positioning rod and a position sensor, the position sensor is fixedly connected to the side wall of the positioning rod close to the feed port, and the number of the position sensors corresponds one-to-one to the number of guide blocks.

[0009] The present invention is further configured as follows: the crossbeam conveying assembly and the sub-beam conveying assembly both include a conveying motor, a transmission belt, a first connecting wheel, a second connecting wheel, an active roller and a driven roller, the conveying motor is fixedly connected to the top wall of the inner cavity of the support platform, the active roller and the driven roller are rotatably connected to the support platform, the active roller and the driven roller are respectively arranged on both sides of the feed port, the first connecting wheel is fixedly connected to the main shaft of the conveying motor, the second connecting wheel is fixedly connected to the rotating shaft of the active roller, the rotating shaft of the active roller passes through the top wall of the support platform and is fixedly connected to the second connecting wheel, a first clamping groove is opened on the side wall of the first connecting wheel, a second clamping groove is opened on the side wall of the second connecting wheel, two groups of second clamping grooves are arranged in parallel, and the transmission belt is respectively clamped in the first clamping groove and the second clamping groove.

[0010] The present invention is further configured as follows: the fixing assembly includes a tightening unit and a loading unit, the tightening unit includes two parallel support frames, the support frames are fixedly connected to the two ends of the support platform in the length direction, one of the support frames is fixedly connected to a Y-axis linear module, the other support frame is fixedly connected to a guide rail, the slide of the Y-axis linear module is fixedly connected to an X-axis linear module, one end of the X-axis linear module away from the Y-axis linear module is slidably connected to the guide rail, the slide of the X-axis linear module is fixedly connected to a Z-axis linear module, the Z-axis The sliding table of the sex module is fixedly connected to the support table, the support table is rotatably connected to the tightening rod, the support table is fixedly connected to the driving motor, the upper end of the tightening rod and the output shaft of the driving motor are fixedly connected to the synchronous wheel, the two synchronous wheels are engaged with a synchronous belt, the lower end of the tightening rod is fixedly connected to the first hexagonal rod and the second hexagonal rod, the second hexagonal rod is located above the first hexagonal rod, the first hexagonal rod is adapted to the first hexagonal groove, the second hexagonal rod is adapted to the second hexagonal groove, and the lower end of the first hexagonal rod is fixedly connected to the magnetic sheet.

[0011] The present invention is further configured as follows: the loading unit includes a screw loader and a support leg loader, and the screw loader and the support leg loader are respectively located between two adjacent sub-beam guide assemblies.

[0012] The present invention is further configured as follows: the unloading assembly includes a lifting unit and a pushing unit, the lifting unit includes a lifting cylinder and a lifting plate, the lifting plate is slidingly connected to the support platform, the lifting cylinder is fixedly connected to the top wall of the inner cavity of the support platform, and the piston rod of the lifting cylinder is fixedly connected to the lifting plate.

[0013] The present invention is further configured as follows: the pushing assembly includes a first fixed plate, a second fixed plate and a pushing motor, the first fixed plate is L-shaped, one end of the first fixed plate is fixedly connected to the top wall of the inner cavity of the support platform, the pushing motor and the second fixed plate are both fixedly connected to the first fixed plate, the two ends of the second fixed plate are respectively rotatably connected to connecting rods, the lower ends of the two connecting rods are respectively rotatably connected to rotating shafts, a push rod is rotatably connected between the two rotating shafts, two groups of push rods are arranged in parallel, the support platform is provided with a sliding groove for the push rod to slide, and the output shaft of the pushing motor is fixedly connected to the rotating shaft of one of the connecting rods through a coupling.

[0014] In summary, the beneficial technical effects of the present invention are:

[0015] The sleeper frame is automatically assembled through an automated assembly platform, which improves the assembly efficiency of the sleeper frame. In addition, the sleeper frame is fixed with screws. When the sleeper frame is scrapped, the crossbeam and sub-beam can be recycled and reused after disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram used to show the overall structure of the high-strength frame of the automobile sleeper;

[0017] Figure 2 It is a top view used to show the overall structure of the high-strength frame of the automobile sleeper;

[0018] Figure 3 It is along Figure 2 Sectional view along section line AA;

[0019] Figure 4 It is a schematic diagram used to show the overall structure of the automated assembly platform;

[0020] Figure 5 yes Figure 4 A partial enlarged schematic diagram of part B;

[0021] Figure 6 It is a top view used to show the overall structure of the automated assembly platform;

[0022] Figure 7 It is along Figure 6 Sectional view of the CC section line;

[0023] Figure 8 It is along Figure 7 Sectional view of the middle DD section line;

[0024] Figure 9 It is an enlarged schematic diagram for showing the crossbeam conveying assembly and the sub-beam conveying assembly;

[0025] Figure 10 It is an enlarged schematic diagram used to show the material return unit.

[0026] Figure numerals: 1-1, crossbeam; 1-2, auxiliary beam; 1-3, clamping groove; 1-4, threaded hole; 1-5, step hole; 1-6, fixing screw; 1-7, support leg; 1-8, first hexagonal groove; 1-9, second hexagonal groove; 2-1, support platform; 2-11, sliding groove; 2-2, crossbeam guide assembly; 2-21, guide block; 2-22, feed port; 2-3, auxiliary beam guide assembly; 2-4, crossbeam positioning assembly; 2-41, positioning rod; 2-42, position sensor; 2-5, auxiliary beam positioning assembly; 2-6, crossbeam conveying assembly; 2-61, conveying motor; 2-62, transmission belt; 2-63, first connecting wheel; 2-64, second connecting wheel; 2-65, driving roller; 2-66, driven roller; 2-67, first clamping groove; 2-68, The second card slot; 2-7, sub-beam conveying assembly; 2-8, fixing assembly; 2-81, support frame; 2-82, Y-axis linear module; 2-83, guide rail; 2-84, X-axis linear module; 2-85, Z-axis linear module; 2-86, support table; 2-87, tightening rod; 2-88, drive motor; 2-89, synchronous wheel; 2-810, synchronous belt; 2-811, screw loader; 2-812, support leg loader; 2-813, first hexagonal rod; 2-814, second hexagonal rod; 2-815, magnetic sheet; 2-9, unloading assembly; 2-91, ejecting cylinder; 2-92, ejecting plate; 2-93, first fixed plate; 2-94, second fixed plate; 2-95, pushing motor; 2-96, connecting rod; 2-97, pushing rod; 2-98, rotating axis. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Example

[0029] like Figure 1-3As shown, a high-strength frame for a car sleeper disclosed in the present invention comprises vertically arranged crossbeams 1-1 and sub-beams 1-2, wherein the crossbeams 1-1 are arranged in three groups at equal intervals and the sub-beams 1-2 are arranged in five groups at equal intervals. A clamping groove 1-3 for positioning the sub-beam 1-2 is provided on the crossbeam 1-1, and the sub-beam 1-2 is clamped in the clamping groove 1-3. A threaded hole 1-4 for fixing the crossbeam 1-1 is provided at the bottom of the clamping groove 1-3. A step hole 1-5 is provided at a position corresponding to the threaded hole 1-4 of the sub-beam 1-2. A fixing screw 1-6 or a support leg 1-7 is threadedly connected in the threaded hole 1-4. The support leg 1-7 is located at both ends of the crossbeams 1-1 on both sides. A first hexagonal groove 1-8 is provided at the end of the fixing screw 1-6 away from the crossbeam 1-1, and a second hexagonal groove 1-9 is provided at the end of the support leg 1-7 away from the crossbeam 1-1. The side length of the second hexagonal groove 1-9 is greater than the side length of the first hexagonal groove 1-8, and the first hexagonal groove 1-8 is provided at the bottom of the second hexagonal groove 1-9. The crossbeam 1-1 and the auxiliary beam 1-2 are fixed by fixing screws 1-6 and supporting legs 1-7, and the assembly is simple and fast. In addition, when the berth frame is not in use, the crossbeam 1-1 and the auxiliary beam 1-2 can be disassembled and recycled.

[0030] like Figure 4-10As shown, it is an automated assembly platform for the high-strength frame of a car sleeper, including a support platform 2-1. The upper end surface of the support platform 2-1 is provided with a crossbeam guide component 2-2, a subbeam guide component 2-3, a crossbeam positioning component 2-4, a subbeam positioning component 2-5, a crossbeam conveying component 2-6, a subbeam conveying component 2-7 and a fixing component 2-8. The crossbeam guide component 2-2 is provided at one end of the support platform 2-1 in the length direction, the crossbeam positioning component 2-4 is provided at the other end of the support platform 2-1 in the length direction, the crossbeam conveying component 2-6 is provided between the crossbeam guide component 2-2 and the crossbeam positioning component 2-4, the subbeam guide component 2-3 is provided at one end of the support platform 2-1 in the width direction, the subbeam positioning component 2-5 is provided at the other end of the support platform 2-1 in the width direction, the subbeam conveying component 2-7 is provided between the subbeam guide component 2-3 and the subbeam positioning component 2-5, and a discharge component 2-9 is provided in the inner cavity of the support platform 2-1, and the discharge component 2-9 passes through the upper end surface of the support platform 2-1. During assembly, the crossbeam 1-1 (sub-beam 1-2) is transported to the support platform 2-1 through a conveyor belt (not shown in the figure), and the crossbeam 1-1 (sub-beam 1-2) passes through the crossbeam guide assembly 2-2 (sub-beam guide assembly 2-3) and is transported to its position through the crossbeam conveying assembly 2-6 (sub-beam conveying assembly 2-7). The crossbeam positioning assembly 2-4 (sub-beam positioning assembly 2-5) positions the crossbeam 1-1 (sub-beam 1-2). Since the sub-beam 1-2 needs to be clamped in the clamping groove 1-3 of the crossbeam 1-1, the crossbeam 1-1 needs to be installed in place before the sub-beam 1-2 is installed. After the crossbeam 1-1 and the auxiliary beam 1-2 are installed in place, the fixing component 2-8 uses the fixing screws 1-6 and the supporting legs 1-7 to fix the crossbeam 1-1 and the auxiliary beam 1-2. After the fixing is completed, the unloading component 2-9 removes the berth frame from the supporting platform 2-1, so as to assemble the next berth frame, realize the automatic assembly of the berth frame, and improve the assembly efficiency of the berth frame.

[0031] Each of the crossbeam guide assembly 2-2 and the subbeam guide assembly 2-3 includes two parallel guide blocks 2-21. A feed port 2-22 is formed between the two guide blocks 2-21. The feed port 2-22 has an arc-shaped opening, facilitating the passage of the crossbeam 1-1 or the subbeam 1-2 through the feed port 2-22. The number of feed ports 2-22 is the sum of the number of crossbeams 1-1 and the number of subbeams 1-2. Each of the crossbeam positioning assembly 2-4 and the subbeam positioning assembly 2-5 includes a positioning rod 2-41 and a position sensor 2-42. The position sensor 2-42 is fixedly connected to the side wall of the positioning rod 2-41 near the feed port 2-22, and the number of position sensors 2-42 corresponds one-to-one to the number of feed ports 2-22.

[0032] The crossbeam conveying assembly 2-6 and the sub-beam conveying assembly 2-7 both include a conveying motor 2-61, a transmission belt 2-62, a first connecting wheel 2-63, a second connecting wheel 2-64, a driving roller 2-65 and a driven roller 2-66. The conveying motor 2-61 is fixedly connected to the top wall of the inner cavity of the support platform 2-1, and the driving roller 2-65 and the driven roller 2-66 are rotatably connected to the support platform 2-1. The driving roller 2-65 and the driven roller 2-66 are respectively arranged on both sides of the feed port 2-22 for driving the crossbeam 1-1 or the sub-beam 1-2. One driving roller 2-65 and one driven roller 2-66 constitute a roller group, and the number of groups is the sum of the crossbeam 1-1 and the vertical beam. The first connecting wheel 2-63 is fixedly connected to the main shaft of the conveying motor 2-61, and the second connecting wheel 2-64 is fixedly connected to the rotating shaft of the driving roller 2-65. The rotating shaft of the driving roller 2-65 passes through the top wall of the support platform 2-1 and is fixedly connected to the second connecting wheel 2-64. A first engaging groove 2-67 is defined on the side wall of the first connecting wheel 2-63, and a second engaging groove 2-68 is defined on the side wall of the second connecting wheel 2-64. Two sets of second engaging grooves 2-68 are provided in parallel. The transmission belt 2-62 is respectively engaged in the first engaging groove 2-67 and the second engaging groove 2-68 to drive the driving roller 2-65 to rotate. During conveying, the crossbeam 1-1 and the auxiliary beam 1-2 pass between the driving roller 2-65 and the driven roller 2-66. The driving roller 2-65 and the driven roller 2-66 rotate in opposite directions, thereby conveying the crossbeam 1-1 and the auxiliary beam 1-2 toward the side of the positioning rod 2-41.

[0033] The fixing assembly 2-8 includes a tightening unit and a loading unit. The tightening unit includes two parallel support frames 2-81. The support frames 2-81 are fixedly connected to the two ends of the support platform 2-1 in the length direction. One of the support frames 2-81 is fixedly connected to the Y-axis linear module 2-82, and the other support frame 2-81 is fixedly connected to the guide rail 2-83. The slide of the Y-axis linear module 2-82 is fixedly connected to the X-axis linear module 2-84. The end of the X-axis linear module 2-84 away from the Y-axis linear module 2-82 is slidably connected to the guide rail 2-83. The slide of the X-axis linear module 2-84 is fixedly connected to the Z-axis linear module 2-85. The slide of the Z-axis linear module 2-85 is fixedly connected to the support platform 2-86. A tightening rod 2-87 is rotatably connected to the support platform 2-86, and a driving motor 2-88 is fixedly connected to the support platform 2-86. A synchronous wheel 2-89 is fixedly connected to the upper end of the tightening rod 2-87 and the output shaft of the driving motor 2-88. A synchronous belt 2-810 is engaged between the two synchronous wheels 2-89. The lower end of the tightening rod 2-87 is fixedly connected to the first hexagonal rod 2-813 and the second hexagonal rod 2-814. The second hexagonal rod 2-814 is located above the first hexagonal rod 2-813. The first hexagonal rod 2-813 is adapted to the first hexagonal groove 1-8, and the second hexagonal rod 2-814 is adapted to the second hexagonal groove 1-9. The lower end of the first hexagonal rod 2-813 is fixedly connected to a magnetic piece 2-815. The first hexagonal rod 2-813 and the second hexagonal rod 2-814 are coaxially arranged, and the fixing screw 1-6 and the support leg 1-7 can be fixed by using a tightening rod 2-87. The arrangement of the magnetic piece 2-815 facilitates the picking up of the fixing screw 1-6 and the support leg 1-7.

[0034] The loading unit includes a screw loader 2-811 and a support leg loader 2-812. The screw loader 2-811 and the support leg loader 2-812 are respectively located between two adjacent sub-beam guide assemblies 2-3. After the crossbeam 1-1 and the sub-beam 1-2 are installed in place, the fixing assembly 2-8 fixes the crossbeam 1-1 and the sub-beam 1-2, and the X-axis linear module 2-84, the Y-axis linear module 2-82 and the Z-axis linear module 2-85 move the tightening rod 2-87 to the set position to tighten the fixing screw 1-6 and the support leg 1-7. During the tightening process of the fixing screw 1-6 and the support leg 1-7, the fixing screw 1-6 is tightened first, and then the support leg 1-7 is tightened. The screw loader 2-811 and the support leg loader 2-812 both use the screw loader 2-811 in the existing technology, and their working principles will not be repeated.

[0035] The unloading assembly 2-9 includes a lifting unit and a pushing unit. The lifting unit includes a lifting cylinder 2-91 and a lifting plate 2-92. The lifting plate 2-92 is slidingly connected to the support platform 2-1. The lifting cylinder 2-91 is fixedly connected to the top wall of the inner cavity of the support platform 2-1. The piston rod of the lifting cylinder 2-91 is fixedly connected to the lifting plate 2-92. The pushing assembly includes a first fixed plate 2-93, a second fixed plate 2-94 and a pushing motor 2-95. The first fixed plate 2-93 is L-shaped. One end of the first fixed plate 2-93 is fixedly connected to the top wall of the inner cavity of the support platform 2-1. The pushing motor 2-95 and the second fixed plate 2-94 are both fixedly connected to the first fixed plate 2-93. The two ends of the second fixed plate 2-94 are rotatably connected to the connecting rod 2-96. The lower ends of the two connecting rods 2-96 are rotatably connected to the rotating shaft 2-98. The push rod 2-97 is rotatably connected between the two rotating shafts 2-98. There are two groups of push rods 2-97 arranged in parallel. The support platform 2-1 is provided with a sliding groove 2-11 for the push rod 2-97 to slide. The output shaft of the pushing motor 2-95 is fixedly connected to the rotating shaft of one of the connecting rods 2-96 through a coupling. After the berth frame is fixed, the lifting cylinder 2-91 pushes the lifting plate 2-92 to lift the berth frame to a height higher than the height of the positioning rod 2-41. The pushing motor 2-95 drives the connecting rod 2-96 to rotate, thereby driving the push rod 2-97 to move regularly. During the movement of the push rod 2-97, the berth frame is moved forward regularly.

[0036] The above components are connected and controlled by a control unit (not shown in the figure, a PLC controller in the prior art is selected), and the control unit is connected to the position sensor 2-42, the conveying motor 2-61, the X-axis linear module 2-84, the Y-axis linear module 2-82, the Z-axis linear module 2-85, the drive motor 2-88, the screw loader 2-811, the support leg loader 2-812, the top cylinder 2-91 and the push motor 2-95 signal.

[0037] Assembly process of the automated assembly platform for high-strength frames of sleeper cars:

[0038] Step 1: The control unit controls the conveying motor 2-61 of the beam conveying assembly 2-6 to rotate and convey the three groups of beams 1-1 to their proper positions. After the position sensor 2-42 of the beam positioning assembly 2-4 detects that the beams 1-1 are in their proper positions, the position sensor 2-42 feeds the information back to the control unit, which controls the conveying motor 2-61 of the beam conveying assembly 2-6 to stop rotating.

[0039] Step 2: The control unit controls the conveying motor 2-61 of the sub-beam conveying assembly 2-7 to rotate; the five sets of crossbeams 1-1 are conveyed into position, and after the position sensor 2-42 of the sub-beam positioning assembly 2-5 detects that the sub-beam 1-2 is conveyed into position, the information is fed back to the control unit, and the control unit controls the conveying motor 2-61 of the sub-beam conveying assembly 2-7 to stop rotating;

[0040] Step 3: The control unit controls the screw loader 2-811, the X-axis linear module 2-84, the Y-axis linear module 2-82, the Z-axis linear module 2-85 and the drive motor 2-88 to work, and moves the tightening rod 2-87 to the screw loader 2-811 through the X-axis linear module 2-84, the Y-axis linear module 2-82 and the Z-axis linear module 2-85 to pick up the fixing screw 1-6, and then moves it to the set position to fix the sub-beam 1-2 and the crossbeam 1-1. Repeat this step to fix the 11 fixing screws 1-6 in turn. After tightening, the fixing screws 1-6 are tightened, and the control unit controls the screw loader 2-811 to stop working and controls the support leg loader 2-812 to work, and then controls the tightening rod 2-87 through the X-axis linear module 2-84, the Y-axis linear module 2-82, and the Z-axis linear module 2-85 to move the support leg loader 2-812 to pick up the support leg 1-7, and then move it to the set position to fix the sub-beam 1-2 and the crossbeam 1-1. After the fixation is completed, the support leg loader 2-812 stops working and the tightening rod 2-87 is reset;

[0041] Step 4: The control unit controls the jacking cylinder 2-91 to jack up the berth frame, and after jacking up, controls the pushing motor 2-95 to rotate, and the pushing motor 2-95 drives the push rod 2-97 to push the berth frame off the support platform 2-1.

Claims

1. Automated assembly platform for high-strength frames of automobile sleepers, characterized by: The high-strength frame of a car sleeper comprises a vertically arranged crossbeam (1-1) and a subbeam (1-2), wherein the crossbeam (1-1) and the subbeam (1-2) are arranged in a plurality of groups at equal intervals, the crossbeam (1-1) is provided with a clamping groove (1-3) for positioning the subbeam (1-2), the subbeam (1-2) is clamped in the clamping groove (1-3), a threaded hole (1-4) for fixing the crossbeam (1-1) is provided at the bottom of the clamping groove (1-3), the subbeam (1-2) is provided with a stepped hole (1-5) at a position corresponding to the threaded hole (1-4), and a fixing screw is threadedly connected in the threaded hole (1-4). (1-6) or support legs (1-7), the support legs (1-7) are located at both ends of the cross beams (1-1) on both sides, a first hexagonal slot (1-8) is provided at one end of the fixing screw (1-6) away from the cross beam (1-1), a second hexagonal slot (1-9) is provided at one end of the support leg (1-7) away from the cross beam (1-1), the side length of the second hexagonal slot (1-9) is greater than the side length of the first hexagonal slot (1-8), the first hexagonal slot (1-8) is provided at the bottom of the second hexagonal slot (1-9), the cross beam (1-1) is provided with three groups at equal intervals, and the auxiliary beam (1-2) is provided with five groups at equal intervals; The assembly platform comprises a support platform (2-1), wherein the upper end surface of the support platform (2-1) is provided with a crossbeam guide assembly (2-2), a sub-beam guide assembly (2-3), a crossbeam positioning assembly (2-4), a sub-beam positioning assembly (2-5), a crossbeam conveying assembly (2-6), a sub-beam conveying assembly (2-7) and a fixing assembly (2-8); the crossbeam guide assembly (2-2) is provided at one end of the support platform (2-1) in the length direction, the crossbeam positioning assembly (2-4) is provided at the other end of the support platform (2-1) in the length direction, and the crossbeam conveying assembly (2- 6) is arranged between the crossbeam guide assembly (2-2) and the crossbeam positioning assembly (2-4), the sub-beam guide assembly (2-3) is arranged at one end of the width direction of the support platform (2-1), the sub-beam positioning assembly (2-5) is arranged at the other end of the width direction of the support platform (2-1), the sub-beam conveying assembly (2-7) is arranged between the sub-beam guide assembly (2-3) and the sub-beam positioning assembly (2-5), and a discharge assembly (2-9) is arranged in the inner cavity of the support platform (2-1), and the discharge assembly (2-9) passes through the upper end surface of the support platform (2-1).

2. The automated assembly platform for a high-strength automobile sleeper frame according to claim 1, characterized in that: The crossbeam guide assembly (2-2) and the auxiliary beam guide assembly (2-3) each comprise two parallel guide blocks (2-21), a feed port (2-22) being formed between the two guide blocks (2-21), the feed port (2-22) opening being arranged in an arc shape, and the number of the feed ports (2-22) being the sum of the number of the crossbeam (1-1) and the auxiliary beam (1-2).

3. The automated assembly platform for a high-strength automobile sleeper frame according to claim 2, characterized in that: The crossbeam positioning assembly (2-4) and the auxiliary beam positioning assembly (2-5) both comprise a positioning rod (2-41) and a position sensor (2-42). The position sensor (2-42) is fixedly connected to a side wall of the positioning rod (2-41) close to the feed port (2-22). The number of the position sensors (2-42) corresponds one-to-one to the number of the feed ports (2-22).

4. The automated assembly platform for a high-strength automobile sleeper frame according to claim 1, characterized in that: The crossbeam conveying assembly (2-6) and the auxiliary beam conveying assembly (2-7) both include a conveying motor (2-61), a transmission belt (2-62), a first connecting wheel (2-63), a second connecting wheel (2-64), a driving roller (2-65) and a driven roller (2-66), wherein the conveying motor (2-61) is fixedly connected to the top wall of the inner cavity of the support platform (2-1), the driving roller (2-65) and the driven roller (2-66) are rotatably connected to the support platform (2-1), the driving roller (2-65) and the driven roller (2-66) are respectively arranged on both sides of the feed port (2-22), the first connecting wheel (2-6 3) is fixedly connected to the main shaft of the conveying motor (2-61), the second connecting wheel (2-64) is fixedly connected to the rotating shaft of the active roller (2-65), the rotating shaft of the active roller (2-65) passes through the top wall of the support platform (2-1) and is fixedly connected to the second connecting wheel (2-64), a first card slot (2-67) is opened on the side wall of the first connecting wheel (2-63), a second card slot (2-68) is opened on the side wall of the second connecting wheel (2-64), two groups of the second card slots (2-68) are arranged in parallel, and the transmission belt (2-62) is respectively engaged in the first card slot (2-67) and the second card slot (2-68).

5. The automated assembly platform for a high-strength automobile sleeper frame according to claim 1, characterized in that: The fixing assembly (2-8) includes a tightening unit and a feeding unit. The tightening unit includes two parallel support frames (2-81). The support frames (2-81) are fixedly connected to the two ends of the support platform (2-1) in the length direction. One of the support frames (2-81) is fixedly connected to a Y-axis linear module (2-82), and the other support frame (2-81) is fixedly connected to a guide rail (2-83). The slide of the Y-axis linear module (2-82) is fixedly connected to an X-axis linear module (2-84). One end of the X-axis linear module (2-84) away from the Y-axis linear module (2-82) is slidably connected to the guide rail (2-83). The slide of the X-axis linear module (2-84) is fixedly connected to a Z-axis linear module (2-85). The slide of the Z-axis linear module (2-85) is fixedly connected to a support platform (2-86). The support platform (2-86) is rotatably connected to a tightening rod (2-87), a driving motor (2-88) is fixedly connected to the support platform (2-86), a synchronous wheel (2-89) is fixedly connected to the upper end of the tightening rod (2-87) and the output shaft of the driving motor (2-88), a synchronous belt (2-810) is engaged between the two synchronous wheels (2-89), the lower end of the tightening rod (2-87) is fixedly connected to a first hexagonal rod (2-813) and a second hexagonal rod (2-814), the second hexagonal rod (2-814) is located above the first hexagonal rod (2-813), the first hexagonal rod (2-813) is adapted to the first hexagonal slot (1-8), the second hexagonal rod (2-814) is adapted to the second hexagonal slot (1-9), and the lower end of the first hexagonal rod (2-813) is fixedly connected to a magnetic sheet (2-815).

6. The automated assembly platform for high-strength automobile sleeper frames according to claim 5, characterized in that: The loading unit comprises a screw loader (2-811) and a support leg loader (2-812), and the screw loader (2-811) and the support leg loader (2-812) are respectively located between two adjacent secondary beam guide assemblies (2-3).

7. The automated assembly platform for a high-strength automobile sleeper frame according to claim 1, characterized in that: The unloading assembly (2-9) includes a material ejection unit and a material pushing unit. The material ejection unit includes a material ejection cylinder (2-91) and a material ejection plate (2-92). The material ejection plate (2-92) is slidably connected to the support platform (2-1). The material ejection cylinder (2-91) is fixedly connected to the top wall of the inner cavity of the support platform (2-1). The piston rod of the material ejection cylinder (2-91) is fixedly connected to the material ejection plate (2-92).

8. The automated assembly platform for high-strength automobile sleeper frames according to claim 7, characterized in that: The pushing unit comprises a first fixed plate (2-93), a second fixed plate (2-94) and a pushing motor (2-95), wherein the first fixed plate (2-93) is L-shaped, one end of the first fixed plate (2-93) is fixedly connected to the top wall of the inner cavity of the support platform (2-1), the pushing motor (2-95) and the second fixed plate (2-94) are both fixedly connected to the first fixed plate (2-93), and the two ends of the second fixed plate (2-94) are rotatably connected to the inner cavity of the support platform (2-1). A connecting rod (2-96) is provided, and the lower ends of the two connecting rods (2-96) are respectively rotatably connected to a rotating shaft (2-98), a push rod (2-97) is rotatably connected between the two rotating shafts (2-98), two groups of push rods (2-97) are arranged in parallel, the support platform (2-1) is provided with a sliding groove (2-11) for the push rods (2-97) to slide, and the output shaft of the pushing motor (2-95) is fixedly connected to the rotating shaft of one of the connecting rods (2-96) through a coupling.

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