Automatic assembling device

Abstract

The invention discloses an automatic assembling device. The device comprises an assembling mechanism and a lifting appliance, the lifting appliance is located above the assembling mechanism, the assembling mechanism is used for pressing a vehicle body into a chassis, and the lifting appliance is used for conveying the vehicle body in the air; a chain bed is placed between the two sliding table stand columns of the combining mechanism, a tray is placed on the chain bed, and the chain bed is used for conveying the tray. According to the invention, the problem of low efficiency of vehicle body assembling equipment in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle body assembly, in particular to an automatic assembly device. BACKGROUND

[0002] The vehicle body assembly device is an important device in the automobile production line, which is used for accurately combining and connecting the vehicle body and the chassis subassembly. In the prior art, the assembly device is composed of a lifting platform, a roller bed, a sliding skid, a lifting hoist and a hoist positioning device. The sliding skid carrying the chassis is transported to the assembly station through the roller bed, the lifting platform is raised and the lifting hoist is lowered, the automatic assembly of the chassis and the vehicle body is realized, and the sliding skid carrying the vehicle body drives away from the station after assembly.

[0003] Whether it is in the form of lifting platform rising and hoist lowering, or in the form of other equipment docking, there is a problem that the lifting platform and the hoist are docked for a long time and cannot meet the production rhythm. Because the hoist itself has a certain shaking characteristic, it is difficult to keep stable during the docking of the vehicle body, thereby causing a certain negative influence on the qualified rate of assembly. Therefore, a high-speed, left-right lifting synchronous mechanism is needed to realize a stable assembly mechanism to solve the problem of low success rate caused by speed not meeting and shaking during assembly.

[0004] Therefore, the technical problem of low efficiency of the vehicle body assembly device in the related art has not been effectively solved. SUMMARY

[0005] The purpose of the present application is to provide an automatic assembly device to solve the problem of low efficiency of the vehicle body assembly device in the related art.

[0006] In order to achieve the above purpose, the present application adopts the following technical scheme: An automatic assembly device, comprising an assembly mechanism and a hoist, the hoist being located above the assembly mechanism, the assembly mechanism being used for pressing the vehicle body into the chassis, and the hoist being used for transporting the vehicle body in the air; a chain bed is placed in the middle of two sliding table columns of the assembly mechanism, and a tray is placed on the chain bed, the chain bed being used for transporting the tray.

[0007] Further provided is that the chain bed comprises a support frame, a chain bed body, a speed reducer and a tray positioning pin; the support frame is welded by rectangular tubes and steel plates; the chain bed body is located on the support frame, and the chain bed body comprises a rectangular tube frame, a chain and a sprocket.

[0008] Further provided is that the speed reducer is installed on the support frame, and the speed reducer is located at the head end or tail end of the chain bed body, and the speed reducer is used to drive the sprocket.

[0009] Further provided is that the tray positioning pin is fixedly installed on the chain bed body, and the tray positioning pin is used to position the tray.

[0010] Further arrangement: the tray comprises a main frame, a vehicle body support positioning device is installed on the main frame, a first vehicle pressing mechanism is fixedly installed on the edge of the vehicle body support positioning device, and the first vehicle pressing mechanism is used to press the vehicle body and the chassis part tightly into an integral whole after the vehicle body is in place.

[0011] Further arrangement: the assembling mechanism comprises a base, a linear slide rail is arranged on the base, two slide column are oppositely arranged on the base, and the slide column slides on the linear slide rail; a horizontal drive motor is arranged on the outer side of the slide column, and the horizontal drive motor is used to drive the slide column to slide.

[0012] Further arrangement: a linear slide rail is arranged on the inner side of the slide column, a vertical slide is slidably connected to the linear slide rail; a lead screw is arranged on the inner side of the slide column, the lead screw is parallel to the slide column, the lead screw is connected with a ball screw, and the lead screw is used to drive the vertical slide.

[0013] Further arrangement: a vertical drive motor is arranged between the two slide columns, the vertical drive motor transmits power to the lead screw through the ball screw, and the lead screw drives the vertical slide.

[0014] Further arrangement: a lifting lug positioning pin is arranged on the top of the vertical slide; and a second vehicle pressing mechanism is fixedly connected to the top of the vertical slide.

[0015] Further arrangement: the lifting lug comprises a lifting lug arm, a lifting lug opening mechanism is fixedly connected to the top of the lifting lug arm, and a vehicle body positioning pin and a support surface are arranged on the bottom of the lifting lug arm.

[0016] Compared with the prior art, the beneficial technical effects of the present application are: since the high-speed automatic assembling method can drive the lead screw to rotate quickly through the motor, the purpose of precise vehicle assembling is achieved, and therefore the problem that the lifting platform rising speed and the lifting lifting lug descending speed are too slow to achieve the fast production rhythm can be solved. Due to the combination of the lead screw and the slide rail, the vehicle body and the chassis can be quickly and accurately connected during the vehicle assembling process, thereby improving the vehicle assembling qualification rate. Each unit realizes full-process automation and cooperation, the chain bed and the lifting lug work in parallel, the assembling mechanism responds quickly to vertical lifting, the single cycle time is short, the single station operation time is greatly shortened, and manual intervention is reduced. The components can be adjusted or replaced by modularization to adapt to different vehicle size requirements, the switching time is short, the overall equipment does not need to be modified, multi-platform mixed production is supported, and the modification cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the specific embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. Obviously, the drawings described below are only some of the embodiments of the present application, and all other drawings obtained by those of ordinary skill in the art without creative work based on these drawings also belong to the protection scope of the present application.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a schematic diagram of the structure of the chain bed of the present application; Figure 3 It is a schematic diagram of the structure of the tray of the present application; Figure 4 It is Figure 3 an enlarged schematic diagram; Figure 5 It is a schematic diagram of the structure of the assembling mechanism of the present application; Figure 6 It is a schematic diagram of the structure of the vertical direction sliding table of the present application; Figure 7 It is a schematic diagram of the structure of the vertical driving motor and ball screw of the present application; Figure 8 It is a schematic diagram of the structure of the lifting appliance of the present application.

[0019] Reference signs: 1, chain bed; 2, tray; 3, assembling mechanism; 4, lifting appliance; 11, support frame; 12, chain bed main body; 13, speed reducer motor; 14, tray positioning pin; 21, main body frame; 22, vehicle body support positioning device; 23, first vehicle pressing mechanism; 31, base; 32, sliding table column; 33, vertical driving motor; 34, ball screw; 35, screw; 36, linear sliding rail; 37, vertical direction sliding table; 38, lifting appliance positioning pin; 39, second vehicle pressing mechanism; 310, horizontal sliding driving; 41, lifting appliance arm; 42, vehicle body positioning pin; 43, lifting appliance opening mechanism. DETAILED DESCRIPTION

[0020] The technical solutions of the present application will be described below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, and all other embodiments obtained by those of ordinary skill in the art without creative work based on these drawings also belong to the protection scope of the present application.

[0021] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. Embodiments

[0023] Reference Figure 1 The present application discloses an automatic assembly device, which comprises an assembly mechanism 3 and a lifting appliance 4, the lifting appliance 4 is located above the assembly mechanism 3, the assembly mechanism 3 is used for pressing the vehicle body into the chassis, and the lifting appliance 4 is used for conveying the vehicle body in the air; a chain bed 1 is arranged in the middle of two sliding table columns 32 of the assembly mechanism 3, and a tray 2 is arranged on the chain bed 1, and the chain bed 1 is used for conveying the tray 2.

[0024] Specifically, the reduction motor 13 drives the chain on the chain bed 1 to run, the chain drags the tray 2 to run to the front of the line body and to the position, the tray 2 is positioned by the tray positioning pin 14 on the chain bed 1, at the same time, the lifting appliance 4 also runs above the tray 2 with the vehicle body. After receiving the stop signal of the tray 2 to the position, the sliding table column 32 moves to the theoretical position along the linear guide. The vertical sliding table 37 rises upward until the lifting appliance positioning pin 38 positions the vehicle body on the lifting appliance 4 and is lifted to separate from the vehicle body positioning pin 42. Then the lifting appliance positioning pin 38 on the vertical sliding table 37 retracts, the lifting appliance arm 41 opens, the vertical sliding table 37 carries the vehicle body downward until the vehicle body is pressed into the vehicle body support positioning device 22 of the tray 2, at this time, the assembly is completed. The sliding table column 32 is opened, and the tray 2 carrying the vehicle body leaves the station. The chain bed 1 conveying the tray 2 is synchronized with the lifting appliance 4 conveying the vehicle body, which greatly shortens the operation time of a single station. The reduction motor 13 drives the chain bed 1 to realize the rapid conveying of the tray 2, stops at the position, the response time is fast, and the tray 2 positioning, vehicle body docking, assembly completion, and tray 2 leaving are all automated, reducing manual intervention and improving the production line rhythm.

[0025] Referring to Figure 2 , the chain bed 1 comprises a support frame 11, a chain bed body 12, a speed reducer motor 13 and a tray positioning pin 14; the support frame 11 is welded by rectangular tubes and steel plates; the chain bed body 12 is located on the support frame 11, and the chain bed body 12 comprises a rectangular tube frame, a chain and a sprocket. The speed reducer motor 13 is installed on the support frame 11, and the speed reducer motor 13 is located at the head end or tail end of the chain bed body 12, and is used to drive the sprocket. The tray positioning pin 14 is fixedly installed on the chain bed body 12, and is used to position the tray 2.

[0026] Specifically, the support frame 11 is welded by rectangular tubes and steel plates, and the chain bed body 12 is assembled by a rectangular tube frame and a chain and a sprocket. The speed reducer motor 13 serves as a power source of the chain bed 1, drives the sprocket to rotate, and the sprocket rotation drives the chain to rotate. The tray positioning pin 14 is controlled to extend or retract by a gas cylinder to position the tray 2.

[0027] The support frame 11 supports the chain bed body 12, the chain bed body 12 carries the tray 2, maintains the final assembly precision control, and meets the assembly requirements of high-end vehicles. The overall rigid structure reduces the conveying vibration, prevents the damage of the vehicle body paint surface and the displacement of the interior trim parts. The chain bed 1 is conveyed synchronously with the movement of the lifting appliance 4, the single station cycle is shortened, and the production line efficiency is improved.

[0028] Referring to Figure 3 and Figure 4 , the tray 2 comprises a main frame 21, the main frame 21 is installed with a vehicle body support positioning device 22, the edge of the vehicle body support positioning device 22 is fixedly installed with a first vehicle pressing mechanism 23, and the first vehicle pressing mechanism 23 is used to press the vehicle body and the chassis parts into an integral whole after the vehicle body is in place.

[0029] Specifically, the main frame 21 is the main support frame 11 of the tray 2, the vehicle body support positioning device 22 is used for supporting and positioning the characteristic points of the vehicle body and the positioning holes. The first vehicle pressing mechanism 23 is used to press the vehicle body and the chassis parts into an integral whole after the vehicle body is in place. After the vehicle body is in place, the vehicle body and the chassis parts are tightly attached through mechanical pressing force, the butt joint gap is eliminated, stable working conditions are provided for subsequent bolt fastening, welding and other connection processes, and problems such as loose connection and uneven stress caused by the gap are avoided. The pressing force is uniformly distributed on the attachment surface of the vehicle body and the chassis, avoiding local overpressure to cause scratches on the vehicle body paint surface and deformation of the chassis parts, while ensuring consistent stress on the whole attachment surface and improving the structural rigidity of the whole vehicle after assembly.

[0030] Referring to Figures 5-7, the assembly mechanism 3 comprises a base 31, a linear slide rail 36 is arranged on the base 31, and two slide column 32 are oppositely arranged on the base 31 and slide on the linear slide rail 36; a horizontal drive motor is arranged on the outer side of the slide column 32, and the horizontal drive motor is used to drive the slide column 32 to slide.

[0031] Specifically, the base 31 is a ground support mechanism of the whole set of mechanism, the bottom of the slide column 32 is provided with a linear slide rail 36, and the slide column 32 can slide linearly on the base 31, and the base 31 is a vertical sliding base. The horizontal sliding drive 310 provides driving force for the horizontal slide. The base 31 is the core of the ground support of the whole set of mechanism, and is designed by welding or casting high-strength steel plate in one piece, so that the slide column 32, the vertical slide and the vehicle body can be stably supported. The slide column 32 can slide linearly on the base 31 through the linear slide rail 36.

[0032] Further, the inner side of the slide column 32 is provided with a linear slide rail 36, and a vertical slide 37 is slidably connected on the linear slide rail 36; the inner side of the slide column 32 is provided with a lead screw 35, the lead screw 35 is parallel to the slide column 32, the lead screw 35 is connected with a ball screw 34, and the lead screw 35 is used to drive the vertical slide 37.

[0033] Specifically, the ball screw 34 is used to transmit power while satisfying linear sliding, and is connected with the lead screw 35 to transmit vertical power. The linear slide rail 36 on the inner side of the slide column 32 cooperates with the lead screw 35 to make the vertical slide 37 slide in the vertical direction. The vertical slide 37 can slide in the vertical direction. The transmission process between the ball screw 34 and the lead screw 35 is stable and impact-free, and the speed regulation range is wide, so that the lifting speed can be accurately adjusted according to the assembly requirements. The ball screw 34 and the lead screw 35 have strong linkage with the servo motor. Through the precise cooperation of the ball screw 34 and the linear slide rail 36, the precision control problem under heavy load in the vertical direction is solved, which not only guarantees the precision of the vehicle body and the chassis assembly, but also realizes the flexible demand of mixed line production of multiple vehicle models, and also considers the operation stability and energy saving. It is the key core of realizing automatic and precise lifting and pressing of the vehicle body in the assembly mechanism 3, and provides important support for the quality and production efficiency of the whole vehicle assembly.

[0034] Further, a vertical drive motor 33 is arranged between the two slide columns 32, the vertical drive motor 33 transmits power to the lead screw 35 through the ball screw 34, and the lead screw 35 drives the vertical slide 37. The top of the vertical slide 37 is provided with a lifting device positioning pin 38; and the top of the vertical slide 37 is fixedly connected with a second vehicle pressing mechanism 39.

[0035] Specifically, the hanger positioning pin 38 is used to position the hanger 4 after the vertical sliding table is raised to position. The second car pressing mechanism 39 is used to support and press the car body, so that the car body is pressed with the chassis part when assembling. The technical problem of how to realize high-precision vertical lifting under heavy load is solved, which not only guarantees the precision and consistency of the assembly of the car body and the chassis, but also takes into account the efficiency, flexibility and economy of the production line.

[0036] Referring to Figure 8 The hanger 4 comprises a hanger arm 41, the top of the hanger arm 41 is fixedly connected with a hanger opening mechanism 43, and the bottom of the hanger arm 41 is provided with a car body positioning pin 42 and a supporting surface.

[0037] Specifically, the hanger arm 41 is used as a supporting and positioning base frame to provide sufficient strength support. The car body positioning pin 42 and the supporting surface are used to support and position the car body. The hanger opening mechanism 43 opens the hanger arm 41 after the hanger 4 is in position to make room for the second car pressing mechanism 39 to lift the car body into position. The hanger 4 realizes the production requirements of automation, precision and flexibility through integrated design, effectively improving the vehicle assembly quality and production line efficiency.

[0038] Regardless of the change of the size of the car assembly mechanism, as long as the car assembly mechanism is in the form of motor-driven ball spline and connecting lead screw 35 to realize the car assembly and car pressing, it is within the protection scope of the patent. The ball spline in the car pressing mechanism can be replaced by a shaft coupling; the lead screw 35 can be replaced by a gear rack; the horizontal motor drive can be replaced by a gas cylinder or an oil cylinder.

[0039] The working principle and beneficial effects of the present application are as follows: Because the high-speed automatic assembly method can quickly rotate the lead screw 35 driven by the motor to achieve precise car assembly, the problem of slow lifting platform rising and slow lifting hanger 4 descending to achieve fast production rhythm can be solved. Thanks to the combination of the lead screw 35 and the sliding rail, the car body and the chassis can be quickly and accurately connected during the car assembly process, thereby improving the car assembly qualification rate. Each unit realizes full-process automation and cooperation, the chain bed 1 and the hanger 4 work in parallel, the assembly mechanism 3 responds quickly to vertical lifting, the single cycle time is short, the single workstation operation time is greatly shortened, and manual intervention is reduced. The components can be adjusted or replaced by modules to adapt to different vehicle size requirements, the switching time is short, the overall equipment does not need to be modified, supports multi-platform mixed production, and reduces the modification cost.

[0040] It should be noted that the above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An apparatus for automatic assembly, characterized in that, The utility model relates to a kind of vehicle body assembly line, including: Assembly mechanism (3) and sling (4), the sling (4) is located above assembly mechanism (3), the assembly mechanism (3) is used to press into chassis car body, the sling (4) is used to transport car body in the air; Two slide column (32) of the assembly mechanism (3) are placed with chain bed (1) in the middle, the chain bed (1) is placed with tray (2), and the chain bed (1) is used to transport the tray (2).

2. A device for automatic assembly according to claim 1, characterized in that Including: The chain bed (1) includes support frame (11), chain bed main body (12), reduction motor (13) and tray positioning pin (14); The support frame (11) is welded by rectangular tube and steel plate; The chain bed main body (12) is located on the support frame (11), and the chain bed main body (12) includes rectangular tube frame, chain and sprocket.

3. A device for automatic assembly according to claim 2, characterized in that Including: The reduction motor (13) is installed on the support frame (11), and the reduction motor (13) is located at the head or tail end of the chain bed main body (12), and the reduction motor (13) is used to drive the sprocket.

4. A device for automatic assembly according to claim 2, characterized in that Including: The tray positioning pin (14) is fixedly installed on the chain bed main body (12), and the tray positioning pin (14) is used to position the tray (2).

5. The apparatus of claim 1, wherein, Including: The tray (2) includes main body frame (21), and the main body frame (21) is provided with car body support positioning device (22); the edge of the car body support positioning device (22) is fixedly provided with first car pressing mechanism (23), and the first car pressing mechanism (23) is used to press the car body and chassis component into an integral whole after the car body is positioned.

6. The apparatus of claim 1, wherein, Including: The assembly mechanism (3) includes base (31), and the base (31) is provided with linear slide rail (36); the base (31) is oppositely provided with two slide column (32), and the slide column (32) slides on the linear slide rail (36). The outer side of the slide column (32) is provided with horizontal drive motor, and the horizontal drive motor is used to drive the slide column (32) to slide.

7. A device for automatic assembly according to claim 6, characterized in that The inner side of the slide column (32) is provided with linear slide rail (36), and the linear slide rail (36) is slidably connected with vertical direction slide table (37). The inner side of the slide column (32) is provided with lead screw (35), and the lead screw (35) is parallel to the slide column (32); the lead screw (35) is connected with ball screw (34), and the lead screw (35) is used to drive the vertical direction slide table (37). Including:

8. A device for automatic assembly according to claim 7, characterized in that Vertical drive motor (33) is arranged between the two slide column (32), and the vertical drive motor (33) transmits power to the lead screw (35) through the ball screw (34), and the lead screw (35) drives the vertical direction slide table (37). Including:

9. A device for automatic assembly according to claim 7, characterized in that The top of the vertical direction slide table (37) is provided with sling positioning pin (38). The top of the vertical direction slide table (37) is fixedly connected with second car pressing mechanism (39). Including:

10. The apparatus of claim 1, wherein, ​ The lifting appliance (4) comprises a lifting appliance arm (41), a top of the lifting appliance arm (41) is fixedly connected with a lifting appliance opening mechanism (43), a bottom of the lifting appliance arm (41) is provided with a vehicle body positioning pin (42) and a supporting surface.

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