A kind of accompanying tool for automobile body assembly of welding line and its use method

Abstract

The present invention discloses a traveling tool for a car body assembly of an automobile welding line and a method for using the same, comprising: a rolling bed assembly; a traveling tool assembly which is slidably mounted on the rolling bed assembly, the rolling bed assembly can drive the traveling tool assembly to move, and the traveling tool assembly can position the car body; the traveling tool assembly is also provided with an adjusting fixture, and the adjusting fixture is provided with a plurality of positioning mechanisms; a rotary drive assembly which can drive the positioning mechanisms on the adjusting fixture to switch, has the functions of precise positioning of the car body and conveying the skid body, can realize compatible co-production of four platform models, automatically switch models, and meet the requirements of high-beat flexible production.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile manufacturing equipment, and in particular relates to a traveling tool for a body assembly of an automobile welding line and a use method thereof. Background Art

[0002] In the process of implementing the present invention, the inventors found that the prior art has at least the following problems:

[0003] In recent years, in the manufacturing of automobile body-in-white, the application of flexibility has become more and more extensive, and the flexible production of lines is also one of the important factors considered by major automobile manufacturers. At present, domestic automobile OEMs generally need to meet the production of more than 4 different models of lines at the same time, but the flexible switching mode of tooling equipment is relatively single, resulting in high subsequent development costs of production lines, long transformation cycles for new models in the future, and high failure rates of flexible switching equipment. Invisibly increase the development costs of automobile manufacturers, extend the launch cycle of new models, and fail to meet the growing market development needs. Summary of the invention

[0004] The technical problem to be solved by the present invention is a kind of accompanying tooling for the automobile body assembly of the automobile welding line, which has the functions of precise positioning of the automobile body and conveying the skid, can realize compatible co-line production of four platform models, automatically switch models, and meet the requirements of high-beat flexible production, and its use method.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a car body assembly accompanying tooling for a car welding line, having:

[0006] Roller bed assembly;

[0007] The accompanying tooling assembly is slidably mounted on the roller bed assembly, the roller bed assembly can drive the accompanying tooling assembly to move, and the accompanying tooling assembly can position the vehicle body; the accompanying tooling assembly is also provided with an adjustment fixture, and the adjustment fixture is provided with a plurality of positioning mechanisms;

[0008] The rotary drive assembly can drive the positioning mechanism on the adjustment fixture to switch.

[0009] The accompanying tooling assembly has a tooling base, and the tooling base can slide on the roller bed assembly; the adjusting fixture is installed on the tooling base.

[0010] The adjusting fixture has:

[0011] A turntable, rotatably mounted on the tooling base;

[0012] Connecting blocks, a plurality of connecting blocks are provided on the outer circumference of the rotating disk;

[0013] A positioning cylinder, mounted on the connecting block;

[0014] A positioning pin is slidably mounted on the connecting block, and the positioning pin is connected to the piston rod of the positioning cylinder.

[0015] The rotary drive assembly has a drive platform, on which is provided a drive mechanism capable of driving a turntable of the adjustment fixture to rotate; the drive mechanism comprises a translation mechanism and a rotation mechanism, the rotation mechanism can drive the turntable to rotate, and the translation mechanism can drive the rotation mechanism to move.

[0016] The translation mechanism comprises a translation seat and a translation cylinder. The translation seat is slidably mounted on a driving platform, and the translation cylinder is mounted on the driving platform. The piston rod of the translation cylinder is connected to the translation seat.

[0017] The rotating mechanism comprises a box body and a driving shaft, wherein the box body is mounted on a translation seat, and the driving shaft is rotatably mounted on the box body. The box body is also provided with a rotating motor for driving the driving shaft to rotate; a matching hole is provided on the turntable, and the driving shaft can extend into the matching hole and drive the turntable to rotate.

[0018] A keyway is arranged in the matching hole, and a pin shaft matching the keyway is arranged on the driving shaft; and a vehicle type identification sensor is also arranged on the box body.

[0019] The roller bed assembly comprises:

[0020] Stand;

[0021] A driving roller, arranged on the platform, and capable of driving the accompanying tooling assembly to move;

[0022] The clamping mechanism is arranged on the platform, and the clamping mechanism can position and clamp the accompanying tooling assembly and then switch the adjusting fixture that clamps the accompanying tooling assembly by rotating the driving assembly.

[0023] The clamping mechanism comprises a clamping bracket and a swing arm, wherein the clamping bracket is mounted on a stand, a rotating cylinder is arranged on the clamping bracket, a first end of the swing arm is connected to a rotating shaft of the rotating cylinder, and a pressing block is arranged at a second end of the swing arm.

[0024] The method for using the above-mentioned automobile welding line body assembly accompanying tooling comprises the following steps:

[0025] 1) The accompanying tooling assembly is designed with 8 adjustment fixtures, each of which is equipped with a positioning cylinder and a positioning pin every 90 degrees, and is switched to four different platform models A, B, C, and D for positioning;

[0026] 2) The accompanying device is installed on the roller bed assembly, and the body assembly it carries is driven by the roller bed assembly and transported along the X direction of the body to each workstation of the line;

[0027] 3) Through the lifting function of the roller bed assembly, the accompanying tooling and the body assembly it carries are lowered to the 6 fixed reference surfaces and 2 reference pins of each station for positioning, and the air source quick plug at the telescopic end of the roller bed at each station is connected and ventilated with the air source quick plug at the accompanying tooling end to achieve clamping and opening of the clamping mechanism;

[0028] 4) When switching to one of the four different floor platform models A, B, C, and D, the accompanying tooling assembly is transported to the designated switching station of the line;

[0029] 5) The piston rods of the left and right translation cylinders of the rotary drive assembly extend and move, respectively driving the box of the rotary mechanism to slide forward along the Y direction of the vehicle body;

[0030] 6) After the drive shaft installed in the box of the mechanism is inserted into the adjustment fixture, the motor drives the rotation adjustment fixture to rotate to the vehicle model to be switched, and the electrical sensor identifies and confirms the vehicle model;

[0031] 7) After the vehicle type is switched, the piston rods of the left and right cylinders of the rotary drive assembly retract, driving the box of the rotary mechanism to withdraw and adjusting the self-locking limit of the clamp.

[0032] One of the above technical solutions has the following advantages or beneficial effects: it has the functions of precise positioning of the vehicle body and conveying the skid, and can realize the compatible co-production of four platform models, one-time planning and phased implementation. Through flexible online automatic switching of models, it can meet the high-beat flexible production and shorten the transformation cycle of introducing new models in the future. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of the accompanying tooling for the automobile body assembly of the automobile welding line provided in an embodiment of the present invention;

[0034] Figure 2 for Figure 1 The structural diagram of the accompanying tooling for the automobile body assembly of the automobile welding line;

[0035] Figure 3 for Figure 1 The structural diagram of the accompanying tooling for the automobile body assembly of the automobile welding line;

[0036] Figure 4 for Figure 1 A schematic diagram of the structure of the accompanying tooling assembly of the automobile body assembly accompanying tooling of the automobile welding line;

[0037] Figure 5 for Figure 4 A partial enlarged view of

[0038] Figure 6 for Figure 1A structural schematic diagram of a roller bed assembly of a traveling tooling for a body assembly of an automobile welding line;

[0039] Figure 7 for Figure 6 A partial enlarged view of

[0040] Figure 8 for Figure 1 A schematic diagram of the structure of a rotary drive assembly of a traveling tooling for a body assembly of an automobile welding line;

[0041] Fig. 9 for Figure 8 A partial enlarged view of

[0042] The marks in the above figures are: 1, roller bed assembly, 11, stand, 12, driving roller, 13, clamping mechanism, 1301, clamping bracket, 1302, rotating cylinder, 1303, swing arm, 1304, pressing block,

[0043] 2. Traveling tooling assembly, 21. Tooling base, 22. Adjustment fixture, 2201. Turntable, 22011. Matching hole, 2202. Connecting block, 2203. Positioning cylinder, 2204. Positioning pin,

[0044] 3. Rotation drive assembly, 31. Drive stand, 32. Drive mechanism, 321. Translation mechanism, 3211. Translation cylinder, 3212. Translation seat, 322. Rotation mechanism, 3221. Box, 3222. Rotation motor, 3223. Drive shaft, 3224. Pin shaft, 3225. Vehicle type recognition sensor. DETAILED DESCRIPTION

[0045] 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.

[0046] See also Figure 1-9 , a kind of accompanying tooling for automobile body assembly of welding line, having:

[0047] The accompanying tooling assembly 2 is slidably installed on the roller bed assembly 1, and the roller bed assembly 1 can drive the accompanying tooling assembly 2 to move, and the accompanying tooling assembly 2 can position the vehicle body; the accompanying tooling assembly 2 is also provided with an adjusting fixture, and the adjusting fixture is provided with multiple positioning mechanisms; 8 coupled windmill fixtures are designed on the accompanying tooling assembly 2, and each coupled windmill fixture is installed with a hook pin clamping cylinder every 90 degrees, which are switched to four different platform models A, B, C, and D for positioning.

[0048] The roller bed assembly 1 plays the role of driving the accompanying tooling assembly 2. At the same time, the roller bed assembly 1 can also position and clamp the accompanying tooling assembly 2, which is convenient for the accompanying tooling assembly 2 to switch workstations. The accompanying tooling is installed on the high-speed roller bed. The body assembly it carries is driven by the high-speed roller bed and transported to each workstation of the line along the X direction of the body. Through the lifting function of the high-speed roller bed, the accompanying tooling and the body assembly it carries are lowered to the 6 fixed reference surfaces and 2 reference pins of each workstation for precise positioning, and the air source quick plug at the telescopic end of the roller bed at each workstation is connected and ventilated with the air source quick plug at the end of the accompanying tooling to achieve the clamping and opening of the accompanying tooling fixture.

[0049] The rotary drive assembly 3 can drive the positioning mechanism on the adjustment fixture to switch, and the accompanying tooling assembly 2 can be driven to switch the workstation by the rotary drive assembly 3 .

[0050] The accompanying tooling assembly 2 has a tooling base 21, which can slide on the roller bed assembly 1; the adjustment fixture is installed on the tooling base 21. The adjustment fixture has: a turntable, which is rotatably installed on the tooling base 21; a connecting block, and a plurality of connecting blocks are provided on the outer periphery of the turntable; a positioning cylinder, which is installed on the connecting block; a positioning pin, which is slidably installed on the connecting block, and the positioning pin is connected to the piston rod of the positioning cylinder. There are 8 coupled windmill clamps designed on the accompanying tooling BASE, and each coupled windmill clamp is installed with a hook pin clamping cylinder every 90 degrees, which is switched to four different platform models A, B, C, and D for positioning.

[0051] The rotary drive assembly 3 has a driving platform 31, on which a driving mechanism capable of driving the turntable of the adjusting fixture to rotate is provided; the driving mechanism includes a translation mechanism 321 and a rotation mechanism 322, the rotation mechanism 322 can drive the turntable to rotate, and the translation mechanism 321 can drive the rotation mechanism 322 to move. The translation mechanism 321 has a translation seat 3212 and a translation cylinder 3211, the translation seat 3212 is slidably mounted on the driving platform 31, and the translation cylinder 3211 is mounted on the driving platform 31; the piston rod of the translation cylinder 3211 is connected to the translation seat 3212. The rotation mechanism 322 has a box body and a driving shaft, the box body is mounted on the translation seat 3212, the driving shaft is rotatably mounted on the box body, and the box body is also provided with a rotating motor 3222 for driving the driving shaft to rotate; the turntable is provided with a matching hole, and the driving shaft can extend into the matching hole and drive the turntable to rotate. When switching to the production of one of the four different floor platform models A, B, C, and D, the accompanying workstation is transported to the designated switching workstation of the line, and the left and right cylinder piston rods of the rotary drive system extend and move, respectively driving the rotary mechanism 322 box to slide forward along the Y direction of the vehicle body. After the driving push rod installed on the rotary mechanism 322 box is inserted into the coupled windmill clamp, the motor drives the rotary mechanism 322 box and the coupled windmill clamp to rotate to the model to be switched.

[0052] A keyway is provided in the matching hole, and a pin shaft matching the keyway is provided on the driving shaft; and a vehicle type identification sensor 3225 is also provided on the box body. The pin shaft of the driving shaft matches the keyway of the matching hole, so as to drive the turntable to rotate.

[0053] The roller bed assembly 1 comprises: a platform; a driving roller 12, which is arranged on the platform, and the driving roller 12 can drive the accompanying tooling assembly 2 to move;

[0054] The clamping mechanism 13 is arranged on the platform. The clamping mechanism 13 can position and clamp the accompanying tooling assembly 2 and then switch the adjusting fixture of the accompanying tooling assembly 2 through the rotating driving assembly 3. The clamping mechanism 13 has a clamping bracket 1301 and a swing arm. The clamping bracket 1301 is installed on the platform. The clamping bracket 1301 is provided with a rotating cylinder 1302. The first end of the swing arm is connected to the rotating shaft of the rotating cylinder 1302, and the second end of the swing arm is provided with a pressure block. The accompanying tool is installed on the high-speed roller bed. The body assembly it carries is driven by the high-speed roller bed and transported to each station of the line body along the X direction of the body. Through the lifting function of the high-speed roller bed, the accompanying tooling and the body assembly it carries are lowered to the 6 fixed reference surfaces and 2 reference pins of each station for precise positioning, and the air source quick plug at the telescopic end of the roller bed at each station is used to connect and ventilate with the air source quick plug at the end of the accompanying tooling to achieve the clamping and opening of the accompanying tooling fixture.

[0055] The flexible changeover solution for the accompanying tooling of the body assembly is widely used in the field of automobile body-in-white welding manufacturing, such as passenger cars, commercial vehicles, and construction machinery. This solution is a trolley-type accompanying tooling fixture for the main body assembly, which has the functions of precise body positioning and skid conveying, and can achieve compatible co-production of four platform models, one-time planning, and phased implementation. Through flexible online automatic switching of models, high-beat flexible production can be met, shortening the transformation cycle of introducing new models in the future.

[0056] The accompanying tooling system for the body assembly is a flexible solution for the main line welding production. It has the functions of precise positioning of the body and conveying the skid, and can realize the compatible co-production of four platform models. Through flexible online automatic switching of models, it reduces technical risks and investment costs, and shortens the transformation cycle of introducing new models in the future. It fundamentally solves the problems of positioning and conveying the skid dedicated to a single model of the traditional body assembly. It will be a technical breakthrough point that domestic and foreign automobile manufacturers and integrators will actively explore and strive to implement, and it has a good development prospect in the future.

[0057] The method of using the above-mentioned automobile welding line body assembly accompanying tooling is as follows:

[0058] The accompanying tooling assembly is designed with 8 coupled windmill fixtures, each of which is equipped with a hook pin clamping cylinder every 90 degrees, which are switched to four different platform models A, B, C, and D for positioning. The accompanying tooling is installed on a high-speed roller bed, and the body assembly it carries is driven by the high-speed roller bed and transported along the X direction of the body to each station of the line. Through the lifting function of the high-speed roller bed, the accompanying tooling and the body assembly it carries are lowered to the 6 fixed reference surfaces and 2 reference pins of each station for precise positioning, and the air source quick plug at the telescopic end of the roller bed at each station is connected and ventilated with the air source quick plug at the end of the accompanying tooling to achieve clamping and opening of the accompanying tooling fixture.

[0059] When switching to the production of one of the four different floor platform models A, B, C, and D, the accompanying workstation will be transported to the designated switching workstation of the line, and the left and right cylinder piston rods of the rotary drive system will extend and move, respectively driving the rotary mechanism box to slide forward along the Y direction of the vehicle body. After the driving push rod installed on the rotary mechanism box is inserted into the coupled windmill fixture, the motor drives the rotary mechanism box and the coupled windmill fixture to rotate to the model to be switched, and the electrical sensor identifies and confirms the model; after the model is switched, the left and right cylinder piston rods of the rotary drive system will retract and drive the rotary mechanism box to withdraw, and the coupled windmill fixture will self-lock and limit and seal the air source.

[0060] After adopting the above solution, the car body has the functions of precise positioning and skid conveying, and can realize compatible co-production of four platform models. Through flexible online automatic switching of models, technical risks and investment costs are reduced, and the transformation cycle of introducing new models in the future is shortened. It fundamentally solves the problems of positioning and conveying skids dedicated to single models of traditional body assemblies, and will be a technical breakthrough point for domestic and foreign automobile manufacturers and integrators to actively explore and implement, and has a good development prospect in the future.

[0061] In the description of the present invention, it is necessary to understand that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and 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.

[0062] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0063] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for using a traveling tool for a car body assembly in a car welding line, characterized in that: The accompanying tooling has: Roller bed assembly; The accompanying tooling assembly is slidably mounted on the roller bed assembly, the roller bed assembly can drive the accompanying tooling assembly to move, and the accompanying tooling assembly can position the vehicle body; the accompanying tooling assembly is also provided with an adjustment fixture, and the adjustment fixture is provided with a plurality of positioning mechanisms; The rotary drive assembly can drive the positioning mechanism on the adjustment fixture to switch; The accompanying tooling assembly has a tooling base, and the tooling base can slide on the roller bed assembly; the adjusting fixture is installed on the tooling base; The adjusting fixture has: A turntable, rotatably mounted on the tooling base; Connecting blocks, a plurality of connecting blocks are provided on the outer circumference of the rotating disk; A positioning cylinder, mounted on the connecting block; A positioning pin, slidably mounted on the connecting block, the positioning pin being connected to the piston rod of the positioning cylinder; The rotary drive assembly has a drive platform, and the drive platform is provided with a drive mechanism capable of driving the turntable of the adjustment fixture to rotate; the drive mechanism includes a translation mechanism and a rotation mechanism, the rotation mechanism can drive the turntable to rotate, and the translation mechanism can drive the rotation mechanism to move; The translation mechanism comprises a translation seat and a translation cylinder, wherein the translation seat is slidably mounted on a driving platform, and the translation cylinder is mounted on the driving platform; the piston rod of the translation cylinder is connected to the translation seat; The rotating mechanism comprises a box and a driving shaft, wherein the box is mounted on the translation seat, the driving shaft is rotatably mounted on the box, and the box is also provided with a rotating motor for driving the driving shaft to rotate; the turntable is provided with a matching hole, and the driving shaft can extend into the matching hole and drive the turntable to rotate; A keyway is provided in the matching hole, and a pin shaft matching the keyway is provided on the driving shaft; a vehicle type identification sensor is also provided on the box body; The roller bed assembly comprises: Stand; A driving roller, arranged on the platform, and capable of driving the accompanying tooling assembly to move; A clamping mechanism, arranged on the platform, capable of positioning and clamping the accompanying tooling assembly and then switching the adjusting fixture that clamps the accompanying tooling assembly by rotating the driving assembly; The clamping mechanism comprises a clamping bracket and a swing arm, wherein the clamping bracket is mounted on a stand, a rotating cylinder is arranged on the clamping bracket, a first end of the swing arm is connected to a rotating shaft of the rotating cylinder, and a pressure block is arranged at a second end of the swing arm; The method of using the portable tooling includes the following steps: 1) The accompanying tooling assembly is designed with 8 adjustment fixtures, each of which is equipped with a positioning cylinder and a positioning pin every 90 degrees, and is switched to four different platform models A, B, C, and D for positioning; 2) The accompanying device is installed on the roller bed assembly, and the body assembly it carries is driven by the roller bed assembly and transported along the X direction of the body to each workstation of the line; 3) Through the lifting function of the roller bed assembly, the accompanying tooling and the body assembly it carries are lowered to the 6 fixed reference surfaces and 2 reference pins of each station for positioning, and the air source quick plug at the telescopic end of the roller bed at each station is connected and ventilated with the air source quick plug at the accompanying tooling end to achieve clamping and opening of the clamping mechanism; 4) When switching to one of the four different floor platform models A, B, C, and D, the accompanying tooling assembly is transported to the designated switching station of the line; 5) The piston rods of the left and right translation cylinders of the rotary drive assembly extend and move, respectively driving the box of the rotary mechanism to slide forward along the Y direction of the vehicle body; 6) After the drive shaft installed in the box of the mechanism is inserted into the adjustment fixture, the motor drives the rotation adjustment fixture to rotate to the vehicle model to be switched, and the electrical sensor identifies and confirms the vehicle model; 7) After the vehicle type is switched, the piston rods of the left and right cylinders of the rotary drive assembly retract, driving the box of the rotary mechanism to withdraw and adjusting the self-locking limit of the clamp.

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