Welding side wall conveying anti-shaking device

Abstract

The utility model discloses a welding side wall conveying anti-shaking device which comprises an upper frame assembly, a two-stage shear fork assembly and a lower frame assembly which are sequentially arranged from top to bottom, a four-belt lifting device is arranged on the upper frame assembly, and fitting gears matched with the two-stage shear fork assembly are arranged on the upper frame assembly and the lower frame assembly. A lifting appliance is arranged at the lower end of the lower frame assembly, and four lifting belts of the four-belt lifting device are connected with the four corners of the upper end of the lifting appliance respectively. The two-stage scissor fork assembly has the advantages that the risk of influencing shaking is greatly reduced by the adoption of the two-stage scissor fork assembly, the synchronism and precision are higher through fitting arrangement of the gears, and it is guaranteed that equipment runs more stably.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-sway devices, in particular to an anti-sway device for welding side panel conveying. Background Technique

[0002] At present, most of the anti-sway devices for the left and right side panels in the domestic passenger car welding workshop to vertically fall from a high altitude to a designated position and align and weld with the vehicle parts on the main welding line are multi-stage scissor mechanisms. Since when the left and right side panels in the passenger car welding workshop descend to the process section of welding with the vehicle parts on the main welding line, first the grasping robot grabs the left and right side panels and then runs them in place, and then the welding robot completes the welding process actions. Therefore, the requirements for the stability and accuracy of the lifting anti-sway device of the EMS trolley for delivering parts are relatively high. The lifting height of the traditional anti-sway device in this process section is generally 4M, and the number of transfer levels is generally about 6. Since the connection at each transfer is a pin connection and requires free movement, there are more or less gaps. The more the number of rotating shafts, the more gaps, the greater the accumulated error, and the greater the sway amount. This is likely to cause the welding manipulator to fail to grasp properly and unable to completely and smoothly complete the grasping and welding process of the left and right side panels. Content of the Utility Model

[0003] The purpose of the utility model is to provide an anti-sway device for welding side panel conveying, which has a lower structural height and stronger stability. The end connection uses a gear fitting method, with better synchronization, higher precision, and a more stable terminal of the lifted workpiece.

[0004] The purpose of the utility model is realized through the following technical solutions:

[0005] An anti-sway device for welding side panel conveying includes an upper frame assembly, two-stage scissor fork assemblies, and a lower frame assembly arranged in sequence from top to bottom. A four-belt lifting device is provided on the upper frame assembly. Fitting gears adapted to the two-stage scissor fork assemblies are provided on both the upper frame assembly and the lower frame assembly. A spreader is provided at the lower end of the lower frame assembly. The four lifting belts of the four-belt lifting device are respectively connected to the four corners at the upper end of the spreader.

[0006] Further, support members are provided at the four corners of the upper frame assembly. Guide wheels adapted to the lifting belts are provided on the support members, and anti-detachment baffles adapted to the lifting belts are provided on the support members.

[0007] Further, it further includes a support guide rail, an EMS trolley is provided on the support guide rail, and the upper end of the support member is connected to the EMS trolley through a connecting arm.

[0008] Further, the two-stage scissor fork assemblies are composed of multiple C-shaped bent arms hinged to form a scissor fork structure, and a hollow opening is provided in the middle of the C-shaped bent arms.

[0009] Furthermore, a proximity switch adapted to the C-shaped arm is provided on the upper frame assembly, and the proximity switch is connected to the four-belt lifting device.

[0010] The utility model has the following advantages:

[0011] The adoption of the two-stage scissor fork assembly greatly reduces the risk of shaking. Through the fitting setting of the gears, the synchronism and accuracy are higher, ensuring that the equipment runs more smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic structural diagram of the utility model.

[0013] Figure 2 is Figure 1 a partial cross-sectional structural diagram of

[0014] In the figure, 1 - upper frame assembly, 2 - two-stage scissor fork assembly, 21 - C-shaped bending arm, 22 - hollow opening, 3 - lower frame assembly, 4 - four-belt lifting device, 41 - lifting belt, 5 - fitting gear, 6 - lifting tool, 7 - driving motor, 8 - support member, 9 - anti-detachment baffle, 10 - support guide rail, 11 - EMS trolley, 12 - connecting arm, 13 - proximity switch. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments. Usually, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0016] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but merely represents the selected embodiments of the utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the utility model without creative efforts shall fall within the protection scope of the utility model.

[0017] It should be noted that, without conflict, the embodiments in the utility model and the features in the embodiments can be combined with each other.

[0018] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0019] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0021] Referring to Figure 1 , as shown in FIG. 2, an embodiment of the present utility model is as follows:

[0022] A welding sidewall conveying anti-sway device includes an upper frame assembly 1, two-stage scissor fork assemblies 2, and a lower frame assembly 3 arranged in sequence from top to bottom. A four-belt lifting device 4 is provided on the upper frame assembly 1. Fitting gears 5 adapted to the two-stage scissor fork assemblies 2 are provided on both the upper frame assembly 1 and the lower frame assembly 3. A spreader 6 is provided at the lower end of the lower frame assembly 3. The four lifting belts 41 of the four-belt lifting device 4 are respectively connected to the four corners at the upper end of the spreader 6.

[0023] Specifically, the two-stage scissor fork assembly 2 is formed by hinging a plurality of C-shaped bent arms 21 to form a scissor fork structure. A hollow opening 22 is formed in the middle of the C-shaped bent arm 21.

[0024] Using the C-shaped bent arm 21 to form a scissor fork structure has higher strength, so that the single-arm length can be longer, and the size is shorter and more compact after folding, and thus the number of stages can be effectively reduced. In this embodiment, the number of scissor fork stages is specifically two, which greatly reduces the risk of affecting sway and makes the equipment operation more stable. The design of the hollow opening 22 is beneficial to reducing the weight.

[0025] The end C-shaped bent arms 21 of the two-stage scissor fork assembly are respectively hinged to the upper frame assembly 1 and the lower frame assembly 3, and the hinge shafts extend outside the frame and are fitted by gears. That is to say, each of the upper and lower frame assemblies contains two mutually fitted gears, thereby improving the synchronization of the arms, with higher precision and ensuring stable operation of the equipment.

[0026] In specific implementation, the main structures of the long frame assembly 1 and the lower frame assembly 3 both adopt C-shaped structures to ensure structural strength and facilitate hinging with the C-shaped bent arms.

[0027] The four-belt lifting device 4 is only driven by a drive motor 7 arranged in the middle to ensure the synchronization of the four lifting belts 41. In this embodiment, the opening and closing of the two-stage scissor fork assembly 2 have no self-power and change the opening and closing by relying on the lifting of the four-belt lifting device, without manual operation, improving the stability of the equipment operation, with higher precision and better adaptability to the robot.

[0028] In specific implementation, supports 8 are provided at the four corners of the upper frame assembly 1, guide wheels adapted to the lifting belts 41 are provided on the supports 8, and anti-drop baffles 9 adapted to the lifting belts 41 are provided on the supports 8.

[0029] The provided anti-drop baffles 9 ensure that the lifting belts 41 always move on the guide wheels.

[0030] Furthermore, the anti-sway device further includes a support guide rail 10, an EMS trolley 11 is provided on the support guide rail 10, and the upper end of the support 8 is connected to the EMS trolley 11 through a connecting arm 12.

[0031] When the EMS trolley 11 runs in place, the four-belt lifting device 4 runs to lower the workpiece, and the anti-sway device of the two-stage scissor mechanism also opens accordingly until the four-belt lifting device lowers in place and stops, and the two-stage scissor fork assembly also becomes an open state. Thus, it is more stable during operation, occupies less space, and has a better and more accurate synchronization effect.

[0032] In this embodiment, a proximity switch 13 adapted to the C-shaped bent arm is provided on the upper frame assembly 1, and the proximity switch 13 is connected to the four-belt lifting device 4. Specifically, the proximity switch 13 is connected to the drive motor 7 of the four-belt lifting device.

[0033] In the open state, by cooperating the C-shaped bent arm with the proximity switch 13, the distance between the upper and lower frame assemblies is ensured to increase to a fixed value to avoid excessive lowering of the spreader and ensure the normal operation of the setting.

[0034] It can be understood that the gas circuits and electronic control units not described in detail in this specification are all well-known prior arts to those skilled in the art, so they will not be repeated here.

[0035] Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A welding side wall conveying anti-sway device, characterized in that: It includes an upper frame component, a two-stage scissor fork component, and a lower frame component arranged successively from top to bottom. A four-belt lifting device is provided on the upper frame component. Fitting gears adapted to the two-stage scissor fork component are provided on both the upper frame component and the lower frame component. A spreader is provided at the lower end of the lower frame component. The four lifting belts of the four-belt lifting device are respectively connected to the four corners at the upper end of the spreader.

2. The anti-sway device for welding side wall conveying according to claim 1, characterized in that: Supports are provided at the four corners of the upper frame component. Guide wheels adapted to the lifting belts are provided on the supports, and anti-detachment baffles adapted to the lifting belts are provided on the supports.

3. The anti-sway device for welding side panel transportation according to claim 2, characterized in that: It further includes a support rail. An EMS trolley is provided on the support rail. The upper end of the support is connected to the EMS trolley through a connecting arm.

4. The anti-sway device for welding side panel transportation according to claim 1, characterized in that: The two-stage scissor fork component is composed of a plurality of C-shaped bent arms hinged to form a scissor fork structure. A hollow opening is provided in the middle of the C-shaped bent arm.

5. The anti-sway device for welding side panel transportation according to claim 4, characterized in that: A proximity switch adapted to the C-shaped bent arm is provided on the upper frame component. The proximity switch is connected to the four-belt lifting device.

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