Vehicle body underbody assembly assembly device and method

Abstract

The present invention provides a vehicle body floor assembly assembly device and method, the assembly device comprises a track frame arranged on the ground, a bearing mechanism is slidably provided on the track frame, a feeding mechanism and a welding mechanism are provided on one side of the track frame; the feeding mechanism comprises a fixed frame arranged on the ground, a fixed track is provided on the fixed frame, a sliding plate is slidably provided on the fixed track, a rotating driving member a is installed on the sliding plate, a gear a is installed on the output end of the rotating driving member a, a rack plate a is installed on the inner side of the fixed frame, and the gear a is meshed with the rack plate a. The present invention drives the output rod to rotate through the rotating driving member h, drives the welding nozzle a to move to the connection between the arc plate and the bottom plate, and the linear driving member f drives the welding nozzle a to weld the connection between the arc plate and the bottom plate, and the vehicle body floor assembly is welded and assembled by automated equipment, which improves the efficiency of welding and assembly compared with manual welding and assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle body floor assembly welding assembly, and in particular to a vehicle body floor assembly assembly device and method. Background Art

[0002] The underbody assembly is an important part of the vehicle body structure. It carries the main weight of the vehicle and works with other systems to ensure the safety, comfort and performance of the vehicle, such as Fig.18 What is shown is a schematic diagram of the structure of a vehicle body floor assembly in the prior art, including a floor 801, a sleeve 802 and an arc plate 803. When the vehicle body floor assembly is produced, the sleeve 802 and the arc plate 803 need to be welded and assembled on the floor 801. There are two ways of welding and assembling the vehicle body floor assembly in the prior art. The first is to perform welding and assembly by welding and assembly equipment, and the other is to perform welding and assembly by manual operation.

[0003] Chinese patent application No. 2024104734597 discloses an intelligent production line for automobile assembly welding, including a main body module, a multi-dimensional module and two exhaust modules. The main body module includes a welding frame, and an electric slide rail is fixedly installed on the rear end face of the welding frame. A welding robot arm is arranged on the electric slide rail. The two exhaust modules are respectively arranged on both sides of the top of the welding frame. The multi-dimensional module includes a lifting component fixedly connected to the bottom of the inner wall of the welding frame, and the lifting component is close to the side of the inner wall of the welding frame, and a rolling ball is fixedly connected to the lifting component.

[0004] However, due to the different structures of welded parts, the above assembly welding production line is not convenient for Fig.18 The vehicle body underbody assembly shown is welded and assembled. In addition, if manual welding and assembly are adopted, the efficiency of welding and assembly is greatly reduced. Therefore, we propose an assembly device and method for the vehicle body underbody assembly. Summary of the invention

[0005] The purpose of the present invention is to address the deficiencies in the prior art and to provide a vehicle body floor assembly assembly device, which drives the output rod to rotate through a rotary drive member h, drives the welding nozzle a to move to the connection between the arc plate and the floor plate, and the linear drive member f drives the welding nozzle a to weld the connection between the arc plate and the floor plate. The vehicle body floor assembly is welded and assembled through automated equipment, which improves the efficiency of welding and assembly compared to manual welding and assembly.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A vehicle body floor assembly device comprises a track frame arranged on the ground, a bearing mechanism is slidably arranged on the track frame, and a feeding mechanism and a welding mechanism are arranged on one side of the track frame;

[0008] The feeding mechanism includes a fixed frame arranged on the ground, a fixed track is provided on the fixed frame, a sliding plate is slidably provided on the fixed track, a rotating driving member a is installed on the sliding plate, a gear a is installed on the output end of the rotating driving member a, a rack plate a is installed on the inner side of the fixed frame, the gear a is meshed with the rack plate a; a manipulator a is installed on the sliding plate, an arc-shaped adsorption block is installed on the output end of the manipulator a, a linear driving member a is installed on the arc-shaped adsorption block, a connecting frame a is installed on the output end of the linear driving member a, a sliding rod is installed on the connecting frame a, and an adsorption ring is installed on the sliding rod; a correction component is provided on one side of the fixed frame.

[0009] The correction assembly includes: a connecting frame a, which is arranged on the ground; an arc correction block, which is installed on the connecting frame a, and a plurality of adsorption holes and two placement grooves are provided on the inner side of the arc adsorption block, and the plurality of adsorption holes are evenly arranged on the inner side of the arc adsorption block; an installation groove a is provided in the arc correction block; a rotating driving member b, which is installed on the arc correction block; a swing arm, which is installed at the output end of the rotating driving member b, and a groove is provided in the swing arm; a driving wheel, which is rotatably arranged in the groove; a rotating driving member c, which is installed on the swing arm, and the output end of the rotating driving member c is connected to the driving wheel by a belt drive.

[0010] The welding mechanism includes: a truss, which is arranged on the ground, and a rack plate b is installed on the inner side of the truss; a guide rail, which is installed on the truss; a moving plate a, which is slidably arranged on the guide rail; a rotating driving member d, which is installed on the moving plate a, and a gear b is installed on the output end of the rotating driving member d, and the gear b is meshed with the rack plate b; a linear driving member b, which is installed at the bottom of the moving plate a; a grinding assembly, which is installed at the output end of the linear driving member b; and a welding assembly, which is installed at the output end of the linear driving member b.

[0011] The grinding assembly includes: an output rod, which is installed at the output end of the linear drive member b; a connecting frame b, which is installed on the output rod; an arc frame, which is installed at both ends of the connecting frame b, and a slide groove is provided in the arc frame; a slider, which is slidably arranged in the slide groove; a square plate, which is installed on the slider; a rotating drive member e, which is installed on one of the square plates; a linear drive member e, which is installed at the output end of the rotating drive member e; a T-shaped block, which is installed at the output end of the linear drive member e, and a grinding stone and a sponge block are installed in the T-shaped block.

[0012] The welding assembly includes: a linear driving member f, which is installed on the other square plate; a moving plate b, which is installed on the output end of the linear driving member f; a welding nozzle a, which is installed on the bottom of the moving plate b; a rotating driving member g is installed on the connecting frame b, and a gear c is installed on the output end of the rotating driving member g, and an arc-shaped rack is installed on the slider, and the gear c is meshed with the arc-shaped rack.

[0013] A fixed frame b is installed at the bottom of the moving plate a, and a rotating driving member h is rotatably provided on the fixed frame b. A rotating sleeve a is installed at the output end of the rotating driving member h. A rotating sleeve b is rotatably provided on the fixed frame b. A block is installed on the output rod. The block and the output rod pass through the rotating sleeve b. The rotating sleeve a and the rotating sleeve b are driven by a belt.

[0014] A robot b and a robot c are provided on one side of the track frame, a moving block is installed at the output end of the robot c, a connecting block is installed on the moving block, a plurality of first-connected connecting sleeves are installed on the connecting block, a welding nozzle b is installed at the end of the connecting sleeve; a driving component is provided on the moving block, and the driving component drives the plurality of first-connected connecting sleeves to bend and deform.

[0015] The driving assembly includes: a connecting shaft, which is installed on the connecting sleeve; a mounting plate, which is installed on one side of the connecting sleeve, and the two connecting shafts pass through the mounting plate, and the two connecting shafts are connected by belt transmission; one of the connecting sleeves is provided with a mounting groove b, a rotating driving member j is installed on the moving block, and a bevel gear e is installed on the output end of the rotating driving member j, one of the connecting shafts is provided with a bevel gear f, and the bevel gear e is meshed with the bevel gear f, and flexible protective sleeves are provided on the outside of multiple connecting sleeves.

[0016] The bearing mechanism includes: a moving plate, which is slidably arranged on the track frame; a bearing frame, which is installed on the moving plate; a rotating driving member k, which is installed on the moving plate; a gear k, which is installed on the output end of the rotating driving member k; and a rack plate k, which is installed on the track frame, and the gear k is meshed with the rack plate k.

[0017] The beneficial effects of the present invention are:

[0018] (1) The present invention drives the output rod to rotate by the rotary driving member h, drives the welding nozzle a to move to the connection between the arc plate and the bottom plate, and the linear driving member f drives the welding nozzle a to weld the connection between the arc plate and the bottom plate. The vehicle body bottom plate assembly is welded and assembled by automated equipment, which improves the efficiency of welding and assembly compared with manual welding and assembly.

[0019] (2) The present invention drives the welding nozzle b to extend into the through hole through the manipulator c, and the rotating driving member j drives the bevel gear e to rotate, which drives the bevel gear f to rotate, and drives multiple connecting sleeves to rotate through belts, so that the structure between the welding nozzle b and the moving block is bent. At this time, the welding nozzle b contacts the connection between the connecting sleeve and the bottom of the base plate, and the welding nozzle b welds the connection between the connecting sleeve and the bottom of the base plate.

[0020] (3) The present invention drives the swing arm to swing, drives the driving wheel to contact the inner side of the arc plate, and rotates the driving member c to drive the driving wheel to rotate, drives the arc plate to slide between the arc adsorption block and the arc correction block, and adjusts the position of the arc adsorption block; the adsorption holes adsorb the arc plate through negative pressure. Since the adsorption holes are evenly arranged on the inner side of the arc adsorption block, the outer side of the arc plate is fully and tightly fitted to the inner side of the arc adsorption block, and the arc plate is corrected to avoid deformation of the arc plate during welding and assembly, which affects the welding and assembly effect; the robot a moves the adsorbed (corrected) arc plate to one side of the bottom plate, which is convenient for subsequent welding of the arc plate and the bottom plate.

[0021] (4) The present invention drives the T-shaped block to rotate 180 degrees by rotating the driving member e, so that the sponge block corresponds to the connection between the arc plate and the bottom plate, and drives the sponge block to apply the transmittance enhancer to the connection between the arc plate and the bottom plate. It should be noted that: increasing the roughness of the connection between the arc plate and the bottom plate enhances the absorption effect of the transmittance enhancer, and the transmittance enhancer can enhance the welding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of the feeding mechanism of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the gear a and rack plate a of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the linear drive member a and the fixed frame a of the present invention;

[0026] Figure 5 It is a schematic diagram of the adsorption hole structure of the present invention;

[0027] Figure 6 It is a schematic diagram of the cross-sectional structure of the arc correction block of the present invention;

[0028] Figure 7 It is a schematic diagram of the welding mechanism structure of the present invention;

[0029] Figure 8 For the present invention Figure 7 The enlarged schematic diagram of point B in the middle;

[0030] Fig. 9 This is a schematic diagram of the structure of the rotary drive member h and the rotary sleeve a of the present invention;

[0031] Fig.10 It is a schematic diagram of the structure of the grinding assembly and the welding assembly of the present invention;

[0032] Fig.11 This is a schematic diagram of the structure of the slideway and the slider of the present invention;

[0033] Fig.12 This is a schematic diagram of the structure of the grinding stone and sponge block of the present invention;

[0034] Fig.13 It is a structural schematic diagram of the bearing mechanism of the present invention;

[0035] Fig.14 This is a schematic diagram of the structure of the robot c of the present invention;

[0036] Fig.15 This is a schematic diagram of the structure of the connecting sleeve and welding nozzle b of the present invention;

[0037] Fig.16 This is a schematic diagram of the structure of the drive assembly of the present invention;

[0038] Fig.17 Schematic diagram of the bending state of multiple connecting sleeves 505 of the present invention

[0039] Fig.18 It is a schematic diagram of the structure of the vehicle body floor assembly in the prior art.

[0040] The accompanying drawings of the present application are as follows: 1. Track frame; 2. Carrying mechanism; 201. Moving plate; 202. Carrying frame; 203. Rotating driving member k; 204. Gear k; 205. Rack plate k; 3. Feeding mechanism; 301. Fixed frame; 302. Fixed track; 303. Sliding plate; 304. Rotating driving member a; 305. Gear a; 306. Rack plate a; 307. Manipulator a; 308. Arc adsorption block; 3081. Adsorption hole; 3082. Placement slot; 309. Linear driving member a; 310. Connecting frame a; 311, sliding rod; 312, adsorption ring; 32, correction assembly; 321, connecting frame a; 322, arc correction block; 3221, mounting slot a; 3222, through slot; 323, rotary drive member b; 324, swing arm; 3241, groove; 325, driving wheel; 326, rotary drive member c; 4, welding mechanism; 401, truss; 4011, rack plate b; 402, guide rail; 403, moving plate a; 404, rotary drive member d; 4041, gear b; 405, linear drive member b; 41, Grinding assembly; 411, output rod; 4111, block; 412, connecting frame b; 413, arc frame; 4131, slide groove; 414, slider; 4141, arc rack; 415, square plate; 416, rotary drive member e; 417, linear drive member e; 418, T-block; 4181, grinding stone; 4182, sponge block; 42, welding assembly; 421, linear drive member f; 422, moving plate b; 423, welding nozzle a; 424, rotary drive member g; 425, gear c; 431, fixed frame b; 432, rotary drive member h; 433, rotary sleeve a; 434, rotary sleeve b; 501, manipulator b; 502, manipulator c; 503, moving block; 504, connecting block; 505, connecting sleeve; 5051, mounting groove b; 506, welding nozzle b; 51, driving assembly; 511, connecting shaft; 512, mounting plate; 513, rotary drive member j; 514, bevel gear e; 515, bevel gear f; 516, flexible protective sleeve; 801, bottom plate; 8011, through hole; 802, connecting sleeve; 803, arc plate. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0043] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0044] Embodiment 1: Figure 1-Figure 17 As shown, this embodiment provides a vehicle body floor assembly device, including a track frame 1 arranged on the ground, a bearing mechanism 2 is slidably arranged on the track frame 1, and a feeding mechanism 3 and a welding mechanism 4 are arranged on one side of the track frame 1;

[0045] like Fig.13 As shown, the bearing mechanism 2 includes: a moving plate 201, which is slidably arranged on the track frame 1; a bearing frame 202, which is installed on the moving plate 201; a rotating driving member k203, which is installed on the moving plate 201; a gear k204, which is installed on the output end of the rotating driving member k203; and a rack plate k205, which is installed on the track frame 1, and the gear k204 is meshed with the rack plate k205.

[0046] In this embodiment, the base plate 801 is placed on the carrier frame 202, and the rotating driving member k203 drives the gear k204 to rotate. Since the gear k204 is engaged with the rack plate k205, the movable plate 201 is driven to slide along the track frame 1, and the base plate 801 is transferred to the welding assembly station. It should be noted that: the base plate 801 is preferably transported to the carrier frame 202 using a crane.

[0047] like Figure 2-Figure 6As shown, the feeding mechanism 3 includes a fixed frame 301 arranged on the ground, a fixed track 302 is provided on the fixed frame 301, a sliding plate 303 is slidably provided on the fixed track 302, a rotating driving member a304 is installed on the sliding plate 303, a gear a305 is installed on the output end of the rotating driving member a304, a rack plate a306 is installed on the inner side of the fixed frame 301, and the gear a305 is meshed with the rack plate a306; a manipulator a307 is installed on the sliding plate 303, an arc-shaped adsorption block 308 is installed on the output end of the manipulator a307, a linear driving member a309 is installed on the arc-shaped adsorption block 308, a connecting frame a310 is installed on the output end of the linear driving member a309, a sliding rod 311 is installed on the connecting frame a310, and an adsorption ring 312 is installed on the sliding rod 311; a correction component 32 is provided on one side of the fixed frame 301. A material storage station is provided on one side of the fixed frame 301, and a plurality of stacked arc plates 803 are provided on the material storage station to form a material pile;

[0048] like Figure 2-Figure 6 As shown, the correction component 32 includes: a connecting frame a321, the connecting frame a321 is arranged on the ground; an arc correction block 322, the arc correction block 322 is installed on the connecting frame a321, a plurality of adsorption holes 3081 and two placement grooves 3082 are opened on the inner side of the arc adsorption block 308, and the plurality of adsorption holes 3081 are evenly arranged on the inner side of the arc adsorption block 308; a mounting groove a3221 and a through groove 3222 are opened in the arc correction block 322; a rotating driving member b323, the rotating driving member b323 is installed on the arc correction block 322; a swing Arm 324, the swing arm 324 is installed on the output end of the rotating driving member b323, and a groove 3241 is opened in the swing arm 324; the driving wheel 325, the driving wheel 325 is rotatably arranged in the groove 3241; the rotating driving member c326, the rotating driving member c326 is installed on the swing arm 324, and the output end of the rotating driving member c326 is connected to the driving wheel 325 through a belt drive. It should be noted that: the adsorption ring 312 and the adsorption hole 3081 use negative pressure to adsorb the arc plate 803, which is a conventional technical means in the field and will not be described in detail here.

[0049] In this embodiment, the sliding plate 303 is driven to slide on the fixed track 302, and the manipulator a307 is driven to move to the material storage station. The manipulator a307 drives the arc-shaped adsorption block 308 to move to the position corresponding to the arc-shaped plate 803 at the top of the material pile. The linear drive member a309 drives the adsorption ring 312 to move downward to contact the arc-shaped plate 803 at the top of the material pile, and the adsorption ring 312 adsorbs the arc-shaped plate 803.

[0050] Drive the manipulator a307 to move to the correction station, move the arc plate 803 and place it on the top of the arc correction block 322, and drive the adsorption ring 312 to retract into the placement groove 3082. At this time, the arc plate 803 is located between the arc adsorption block 308 and the arc correction block 322;

[0051] The rotating driving member b323 drives the swing arm 324 to swing, driving the driving wheel 325 to contact the inner side of the arc plate 803, and the rotating driving member c326 drives the driving wheel 325 to rotate, driving the arc plate 803 to slide between the arc adsorption block 308 and the arc correction block 322, and adjusting the position of the arc adsorption block 308;

[0052] The adsorption holes 3081 adsorb the arc plate 803 through negative pressure. Since the adsorption holes 3081 are evenly arranged on the inner side of the arc adsorption block 308, the outer side of the arc plate 803 is fully and tightly attached to the inner side of the arc adsorption block 308, so as to correct the arc plate 803 and avoid deformation (inward bending) of the arc plate 803 during welding and assembly, thereby affecting the welding and assembly effect.

[0053] The robot a307 moves the adsorbed (corrected) curved plate 803 to one side of the bottom plate 801 (the contact positions of the two are aligned) to facilitate subsequent welding of the curved plate 803 and the bottom plate 801;

[0054] It should be noted that: as to why the curved plate 803 needs to be corrected, it is because the curved plate 803 is an arc-shaped structure and will naturally bend inward. If the curved plate 803 is not corrected, the position of the bent curved plate 803 and the base plate 801 will not match, thereby affecting subsequent welding and assembly.

[0055] like Figure 7-Figure 12 As shown, the welding mechanism 4 includes: a truss 401, which is arranged on the ground, and a rack plate b4011 is installed on the inner side of the truss 401; a guide rail 402, which is installed on the truss 401; a moving plate a403, which is slidably arranged on the guide rail 402; a rotating driving member d404, which is installed on the moving plate a403, and a gear b4041 is installed at the output end of the rotating driving member d404, and the gear b4041 is meshed with the rack plate b4011; a linear driving member b405, which is installed at the bottom of the moving plate a403; a grinding assembly 41, which is installed at the output end of the linear driving member b405; and a welding assembly 42, which is installed at the output end of the linear driving member b405.

[0056] like Figure 7-Figure 12As shown, the grinding assembly 41 includes: an output rod 411, which is installed on the output end of the linear drive member b405; a connecting frame b412, which is installed on the output rod 411; an arc frame 413, which is installed at both ends of the connecting frame b412, and a slide groove 4131 is provided in the arc frame 413; a slider 414, which is slidably arranged in the slide groove 4131; a square plate 415, which is installed on the slider 414; a rotating drive member e416, which is installed on one of the square plates 415; a linear drive member e417, which is installed on the output end of the rotating drive member e416; a T-shaped block 418, which is installed at the output end of the linear drive member e417, and a grinding stone 4181 and a sponge block 4182 are installed in the T-shaped block 418.

[0057] The welding assembly 42 includes: a linear driving component f421, which is installed on another square plate 415; a moving plate b422, which is installed on the output end of the linear driving component f421; a welding nozzle a423, which is installed on the bottom of the moving plate b422; a rotating driving component g424 is installed on the connecting frame b412, and a gear c425 is installed on the output end of the rotating driving component g424; an arc-shaped rack 4141 is installed on the slider 414, and the gear c425 is engaged with the arc-shaped rack 4141.

[0058] In this embodiment, the driving moving plate a403 moves on the guide rail 402, the linear driving member b405 drives the output rod 411 downward, drives the T-shaped block 418 to move above the connection between the curved plate 803 and the bottom plate 801, and the linear driving member e417 drives the T-shaped block 418 to move downward until the grinding stone 4181 contacts the connection between the curved plate 803 and the bottom plate 801;

[0059] The rotating driving member g424 drives the gear c425 to rotate, drives the slider 414 to slide in the slide groove 4131, and drives the grinding stone 4181 to grind along the arc surface of the connection between the arc plate 803 and the bottom plate 801, thereby increasing the roughness of the connection between the arc plate 803 and the bottom plate 801;

[0060] Similarly, the rotating drive member e416 drives the T-shaped block 418 to rotate 180 degrees, so that the sponge block 4182 corresponds to the position of the connection between the arc plate 803 and the bottom plate 801, and drives the sponge block 4182 to apply the transmittance enhancer to the connection between the arc plate 803 and the bottom plate 801. It should be noted that: increasing the roughness of the connection between the arc plate 803 and the bottom plate 801 can enhance the absorption effect of the transmittance enhancer, and the transmittance enhancer can enhance the welding effect.

[0061] Regarding the supply of transmittance enhancers: a storage box (not shown) can be set on the truss 401, and the storage box is connected to the T-block 418 by a pipeline (not shown in the figure). The transmittance enhancer is arranged in the storage box, and the transmittance enhancer is transmitted to the sponge block 4182 through the pipeline. This is a conventional technical means in the field and will not be described in detail here.

[0062] A fixed frame b431 is installed at the bottom of the moving plate a403, a rotating driving member h432 is rotatably provided on the fixed frame b431, a rotating sleeve a433 is installed at the output end of the rotating driving member h432, a rotating sleeve b434 is rotatably provided on the fixed frame b431, a block 4111 is installed on the output rod 411, the block 4111 and the output rod 411 pass through the rotating sleeve b434, and the rotating sleeve a433 and the rotating sleeve b434 are driven by a belt;

[0063] In this embodiment, the rotary drive member h432 drives the output rod 411 to rotate, driving the welding nozzle a423 to move to the connection between the arc plate 803 and the base plate 801, and the linear drive member f421 drives the welding nozzle a423 to weld the connection between the arc plate 803 and the base plate 801.

[0064] Embodiment 2: Figure 1-Figure 17 As shown, the components identical or corresponding to those in the first embodiment are marked with the corresponding reference numerals in the first embodiment. For the sake of simplicity, only the differences from the first embodiment are described below. The second embodiment differs from the first embodiment in that:

[0065] like Figure 14-17 As shown, in this embodiment, a manipulator b501 and a manipulator c502 are provided on one side of the track frame 1, a moving block 503 is installed at the output end of the manipulator c502, a connecting block 504 is installed on the moving block 503, a plurality of first-connected connecting sleeves 505 are installed on the connecting block 504, a welding nozzle b506 is installed at the end of the connecting sleeve 505; a driving component 51 is provided on the moving block 503, and the driving component 51 drives the plurality of first-connected connecting sleeves 505 to bend and deform.

[0066] The driving assembly 51 includes: a connecting shaft 511, which is installed on the connecting sleeve 505; a mounting plate 512, which is installed on one side of the connecting sleeve 505, and the two connecting shafts 511 pass through the mounting plate 512, and the two connecting shafts 511 are connected by belt transmission; a mounting groove b5051 is opened in one of the connecting sleeves 505, a rotating driving member j513 is installed on the moving block 503, and a bevel gear e514 is installed on the output end of the rotating driving member j513, a bevel gear f515 is installed on one of the connecting shafts 511, and the bevel gear e514 is meshed with the bevel gear f515, and a flexible protective sleeve 516 is provided on the outside of multiple connecting sleeves 505.

[0067] like Fig.18 As shown, a mounting hole (not shown) and a through hole 8011 are provided in the bottom plate 801, and the manipulator b501 carries and places the sleeve 802 in the mounting hole (the sleeve 802 is inserted into the mounting hole), and the manipulator c502 drives the welding nozzle b506 to move and spot weld the connection between the sleeve 802 and the bottom plate 801, thereby realizing the welding of the sleeve 802 and the top surface of the bottom plate 801;

[0068] Manipulator c502 drives welding nozzle b506 to extend into through hole 8011, and rotating driving member j513 drives bevel gear e514 to rotate, driving bevel gear f515 to rotate, and driving multiple connecting sleeves 505 to rotate through belts, so that the structure between welding nozzle b506 and moving block 503 bends. At this time, welding nozzle b506 contacts with the connecting sleeve 802 and the bottom connection of bottom plate 801 (the state is as shown in FIG. Fig.17 As shown), welding nozzle b506 welds the connection between the sleeve 802 and the bottom of the bottom plate 801;

[0069] It should be noted that the welding structure in this embodiment is to extend into the through hole 8011 and then bend to weld the bottom of the bottom plate 801 , and its effect is obviously different from conventional welding.

[0070] Embodiment 3: This embodiment provides an assembly method of a vehicle body floor assembly device, comprising the following steps:

[0071] Step 1, material discharge process: put the bottom plate 801 on the carrier 202, and the rotating driving member k203 drives the gear k204 to rotate. Since the gear k204 is engaged with the rack plate k205, the moving plate 201 is driven to slide along the track frame 1, and the bottom plate 801 is transferred to the welding assembly station;

[0072] Step 2, material loading and correction process: drive the sliding plate 303 to slide on the fixed track 302, drive the manipulator a307 to move to the material storage station, the manipulator a307 drives the arc adsorption block 308 to move to the position corresponding to the arc plate 803 on the top of the material pile, and the linear drive member a309 drives the adsorption ring 312 to move downward to contact the arc plate 803 on the top of the material pile, and the adsorption ring 312 adsorbs the arc plate 803;

[0073] Drive the manipulator a307 to move to the correction station, move the arc plate 803 and place it on the top of the arc correction block 322, and drive the adsorption ring 312 to retract into the placement groove 3082. At this time, the arc plate 803 is located between the arc adsorption block 308 and the arc correction block 322;

[0074] The rotating driving member b323 drives the swing arm 324 to swing, driving the driving wheel 325 to contact the inner side of the arc plate 803, and the rotating driving member c326 drives the driving wheel 325 to rotate, driving the arc plate 803 to slide between the arc adsorption block 308 and the arc correction block 322, and adjusting the position of the arc adsorption block 308;

[0075] The adsorption holes 3081 adsorb the arc plate 803 by negative pressure. Since the adsorption holes 3081 are evenly arranged on the inner side of the arc adsorption block 308, the outer side of the arc plate 803 is fully and tightly attached to the inner side of the arc adsorption block 308, so as to correct the arc plate 803 and avoid deformation of the arc plate 803 during welding and assembly, thereby affecting the welding and assembly effect.

[0076] The robot a307 moves the adsorbed (corrected) curved plate 803 to one side of the bottom plate 801 to facilitate subsequent welding of the curved plate 803 and the bottom plate 801;

[0077] Step 3, grinding and coating process: drive the moving plate a403 to move on the guide rail 402, the linear driving member b405 drives the output rod 411 downward, drives the T-shaped block 418 to move above the connection between the curved plate 803 and the bottom plate 801, and the linear driving member e417 drives the T-shaped block 418 to move downward until the grinding stone 4181 contacts the connection between the curved plate 803 and the bottom plate 801;

[0078] The rotating driving member g424 drives the gear c425 to rotate, drives the slider 414 to slide in the slide groove 4131, and drives the grinding stone 4181 to grind along the arc surface of the connection between the arc plate 803 and the bottom plate 801, thereby increasing the roughness of the connection between the arc plate 803 and the bottom plate 801;

[0079] Similarly, the rotating driving member e416 drives the T-shaped block 418 to rotate 180 degrees, so that the sponge block 4182 corresponds to the position of the connection between the arc plate 803 and the bottom plate 801, and drives the sponge block 4182 to apply the transmittance enhancer to the connection between the arc plate 803 and the bottom plate 801. It should be noted that: increasing the roughness of the connection between the arc plate 803 and the bottom plate 801 enhances the absorption effect of the transmittance enhancer, and the transmittance enhancer can enhance the welding effect;

[0080] Step 4, first welding process: the rotary drive member h432 drives the output rod 411 to rotate, drives the welding nozzle a423 to move to the connection between the arc plate 803 and the bottom plate 801, and the linear drive member f421 drives the welding nozzle a423 to weld the connection between the arc plate 803 and the bottom plate 801;

[0081] Step 5, second welding process: the robot b501 carries the sleeve 802 and places it in the installation hole, and the robot c502 drives the welding nozzle b506 to move and spot weld the connection between the sleeve 802 and the bottom plate 801, so as to realize the welding of the top surface of the sleeve 802 and the bottom plate 801;

[0082] Manipulator c502 drives welding nozzle b506 to extend into through hole 8011, and rotating driving part j513 drives bevel gear e514 to rotate, driving bevel gear f515 to rotate, and driving multiple connecting sleeves 505 to rotate through belts, so that the structure between welding nozzle b506 and moving block 503 is bent, and welding nozzle b506 contacts with the connecting sleeve 802 and the bottom connection of bottom plate 801, and welding nozzle b506 welds the connecting sleeve 802 and the bottom connection of bottom plate 801.

[0083] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle body underbody assembly device, comprising a track frame (1) arranged on the ground, characterized in that: A bearing mechanism (2) is slidably provided on the track frame (1), and a loading mechanism (3) and a welding mechanism (4) are provided on one side of the track frame (1); The feeding mechanism (3) comprises a fixed frame (301) arranged on the ground, a fixed track (302) being arranged on the fixed frame (301), a sliding plate (303) being slidably arranged on the fixed track (302), a rotating driving member a (304) being mounted on the sliding plate (303), a gear a (305) being mounted on the output end of the rotating driving member a (304), a rack plate a (306) being mounted on the inner side of the fixed frame (301), and the gear a (305) being meshed with the rack plate a (306); A manipulator a (307) is installed on the sliding plate (303), an arc-shaped adsorption block (308) is installed on the output end of the manipulator a (307), a linear drive member a (309) is installed on the arc-shaped adsorption block (308), a fixed frame a (310) is installed on the output end of the linear drive member a (309), a sliding rod (311) is installed on the fixed frame a (310), and an adsorption ring (312) is installed on the sliding rod (311); a correction component (32) is provided on one side of the fixed frame (301); The correction component (32) comprises: A connecting frame a (321), wherein the connecting frame a (321) is arranged on the ground; An arc-shaped correction block (322), the arc-shaped correction block (322) being mounted on the connecting frame a (321), a plurality of adsorption holes (3081) and two placement grooves (3082) being provided on the inner side of the arc-shaped adsorption block (308), the plurality of adsorption holes (3081) being evenly arranged on the inner side of the arc-shaped adsorption block (308); and a mounting groove a (3221) being provided on the inner side of the arc-shaped correction block (322); A rotating driving member b (323), wherein the rotating driving member b (323) is mounted on the arc correction block (322); A swing arm (324), the swing arm (324) being mounted on the output end of the rotary drive member b (323), and a groove (3241) being provided in the swing arm (324); A driving wheel (325), the driving wheel (325) being rotatably disposed in the groove (3241); A rotating driving member c (326), wherein the rotating driving member c (326) is mounted on the swing arm (324), and an output end of the rotating driving member c (326) is connected to the driving wheel (325) via a belt drive.

2. The vehicle body underbody assembly equipment according to claim 1, characterized in that: The welding mechanism (4) comprises: A truss (401), wherein the truss (401) is arranged on the ground, and a rack plate b (4011) is installed inside the truss (401); A guide rail (402), the guide rail (402) being installed on the truss (401); A moving plate a (403), the moving plate a (403) being slidably disposed on the guide rail (402); A rotating driving member d (404), the rotating driving member d (404) being mounted on the moving plate a (403), a gear b (4041) being mounted on an output end of the rotating driving member d (404), the gear b (4041) being meshed with a rack plate b (4011); A linear driving member b (405), wherein the linear driving member b (405) is installed at the bottom of the moving plate a (403); A grinding component (41), the grinding component (41) being mounted on the output end of the linear drive member b (405); A welding assembly (42), wherein the welding assembly (42) is mounted on an output end of the linear drive member b (405).

3. The vehicle body floor assembly equipment according to claim 2, characterized in that: The grinding assembly (41) comprises: An output rod (411), the output rod (411) being mounted on an output end of the linear drive member b (405); A connecting frame b (412), the connecting frame b (412) being mounted on the output rod (411); An arc-shaped frame (413), the arc-shaped frame (413) being installed at two ends of the connecting frame b (412), and a slide groove (4131) being provided in the arc-shaped frame (413); A sliding block (414), the sliding block (414) being slidably disposed in the sliding groove (4131); A square plate (415), the square plate (415) being mounted on the sliding block (414); A rotating driving member e (416), wherein the rotating driving member e (416) is mounted on one of the square plates (415); A linear driving member e (417), wherein the linear driving member e (417) is mounted on an output end of the rotary driving member e (416); A T-shaped block (418), the T-shaped block (418) being mounted on the output end of the linear drive member e (417), and a grinding stone (4181) and a sponge block (4182) being mounted in the T-shaped block (418).

4. The vehicle body floor assembly equipment according to claim 3, characterized in that: The welding assembly (42) comprises: A linear driving member f (421), wherein the linear driving member f (421) is mounted on another square plate (415); A moving plate b (422), the moving plate b (422) being mounted on an output end of the linear drive member f (421); A welding nozzle a (423), wherein the welding nozzle a (423) is installed at the bottom of the moving plate b (422); A rotary drive member g (424) is mounted on the connecting frame b (412), a gear c (425) is mounted on the output end of the rotary drive member g (424), an arc-shaped rack (4141) is mounted on the slider (414), and the gear c (425) meshes with the arc-shaped rack (4141).

5. The vehicle body floor assembly equipment according to claim 4, characterized in that: A fixed frame b (431) is installed at the bottom of the moving plate a (403), a rotating driving member h (432) is rotatably provided on the fixed frame b (431), a rotating sleeve a (433) is installed at the output end of the rotating driving member h (432), a rotating sleeve b (434) is rotatably provided on the fixed frame b (431), a block (4111) is installed on the output rod (411), the block (4111) and the output rod (411) pass through the rotating sleeve b (434), and a belt is used to drive the rotating sleeve a (433) and the rotating sleeve b (434).

6. The vehicle body floor assembly assembly equipment according to claim 5, characterized in that: A manipulator b (501) and a manipulator c (502) are provided on one side of the track frame (1); a moving block (503) is installed at the output end of the manipulator c (502); a connecting block (504) is installed on the moving block (503); a plurality of first-connection connecting sleeves (505) are installed on the connecting block (504); and a welding nozzle b (506) is installed at the end of the connecting sleeve (505); The motion block (503) is provided with a driving assembly (51), and the driving assembly (51) drives a plurality of first-connected connecting sleeves (505) to bend and deform.

7. The vehicle body floor assembly assembly equipment according to claim 6, characterized in that: The driving assembly (51) comprises: A connecting shaft (511), wherein the connecting shaft (511) is mounted on the connecting sleeve (505); A mounting plate (512), the mounting plate (512) being mounted on one side of the connecting sleeve (505), the two connecting shafts (511) passing through the mounting plate (512), and the two connecting shafts (511) being connected via a belt drive; A mounting groove b (5051) is provided in one of the connecting sleeves (505), a rotating driving member j (513) is mounted on the moving block (503), a bevel gear e (514) is mounted on the output end of the rotating driving member j (513), a bevel gear f (515) is mounted on one of the connecting shafts (511), the bevel gear e (514) is meshed with the bevel gear f (515), and flexible protective sleeves (516) are provided on the outer sides of the plurality of connecting sleeves (505).

8. The vehicle body floor assembly assembly equipment according to claim 7, characterized in that: The bearing mechanism (2) comprises: A movable plate (201), the movable plate (201) being slidably disposed on the track frame (1); A carrier frame (202), the carrier frame (202) being mounted on the movable plate (201); A rotating driving member k (203), wherein the rotating driving member k (203) is mounted on the moving plate (201); A gear k (204), the gear k (204) being mounted on an output end of the rotary drive member k (203); A rack plate k (205), the rack plate k (205) being mounted on the track frame (1), and the gear k (204) being meshed with the rack plate k (205).

9. The assembly method of a vehicle body floor assembly equipment according to claim 8, characterized in that: The following steps are involved: Step 1: Material placement process: placing the base plate on the carrier frame (202), driving the movable plate (201) to slide along the track frame (1), and transferring the base plate to the welding assembly station; Step 2, material loading and correction process: drive the sliding plate (303) to slide on the fixed track (302), drive the manipulator a (307) to move to the material storage station, the manipulator a (307) drives the arc-shaped adsorption block (308) to move to a position corresponding to the arc-shaped plate at the top of the material pile, drives the adsorption ring (312) to move downward to contact the arc-shaped plate at the top of the material pile, and the adsorption ring (312) adsorbs the arc-shaped plate; The manipulator a (307) is driven to move to the correction station, and the arc plate is moved and placed on the top of the arc correction block (322), and the adsorption ring (312) is driven to retract into the placement groove (3082), at which time the arc plate is located between the arc adsorption block (308) and the arc correction block (322); The swing arm (324) is driven to swing, so as to drive the driving wheel (325) to contact the inner side of the arc plate, so as to drive the driving wheel (325) to rotate, and drive the arc plate to slide between the arc adsorption block (308) and the arc correction block (322), so as to adjust the position of the arc adsorption block (308); The adsorption holes (3081) adsorb the arc plate by negative pressure. Since the adsorption holes (3081) are evenly arranged on the inner side of the arc adsorption block (308), the outer side of the arc plate is completely and tightly fitted to the inner side of the arc adsorption block (308), so that the arc plate is corrected to avoid deformation of the arc plate during welding and assembly, thereby affecting the welding and assembly effect. The robot a (307) moves the adsorbed arc plate to one side of the bottom plate, so as to facilitate the subsequent welding of the arc plate and the bottom plate. Step 3, grinding and coating process: drive the moving plate a (403) to move on the guide rail (402), drive the output rod (411) downward, drive the T-shaped block (418) to move above the connection between the arc plate and the bottom plate, and the linear drive member e (417) drives the T-shaped block (418) to move downward until the grinding stone (4181) contacts the connection between the arc plate and the bottom plate; The driving gear c (425) rotates, driving the slider (414) to slide in the slide groove (4131), driving the grinding stone (4181) to grind along the arc surface at the connection between the arc plate and the bottom plate, thereby increasing the roughness of the connection between the arc plate and the bottom plate; The T-shaped block (418) is driven to rotate 180 degrees, so that the sponge block (4182) corresponds to the position of the connection between the arc plate and the bottom plate, and the sponge block (4182) is driven to apply the transmittance enhancer to the connection between the arc plate and the bottom plate, thereby increasing the roughness of the connection between the arc plate and the bottom plate, enhancing the absorption effect of the transmittance enhancer, and the transmittance enhancer enhances the welding effect; Step 4, first welding process: driving the output rod (411) to rotate, driving the welding nozzle a (423) to move to the connection between the arc plate and the bottom plate, and driving the welding nozzle a (423) to weld the connection between the arc plate and the bottom plate; Step 5, second welding process: the robot b (501) moves the sleeve and places it in the installation hole, and the robot c (502) drives the welding nozzle b (506) to move and spot weld the connection between the sleeve and the bottom plate, so as to achieve welding of the top surface of the sleeve and the bottom plate; The robot arm c (502) drives the welding nozzle b (506) to extend into the through hole, drives the bevel gear e (514) to rotate, drives the bevel gear f (515) to rotate, and drives the multiple connecting sleeves (505) to rotate through the belt, so that the structure between the welding nozzle b (506) and the moving block (503) is bent. At this time, the welding nozzle b (506) contacts the connecting sleeve and the bottom of the bottom plate, and the welding nozzle b (506) welds the connecting sleeve and the bottom of the bottom plate.

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