CDC assembly laser welding integrated positioning device

Abstract

The utility model belongs to the technical field of laser welding, and particularly discloses a CDC assembly laser welding integrated positioning device which comprises a device frame, a base disc is fixedly installed on the device frame, and a welding table is movably installed above the base disc through a multi-degree-of-freedom dynamic positioning mechanism. According to the CDC assembly laser welding integrated positioning device, by means of cooperative work of the three sets of dynamic positioning assemblies (including hydraulic cylinders, hydraulic rods, upper table shafts, upper rotary tables and other components), the position of a workpiece can be flexibly adjusted in a multi-direction and multi-angle mode in the welding process, and when the hydraulic cylinder in any set of dynamic positioning assembly works in cooperation with the hydraulic rod, the position of the workpiece can be adjusted in a multi-direction and multi-angle mode; according to the multi-degree-of-freedom dynamic adjusting device, the welding table can be lifted at the position, the other two sets of dynamic positioning assemblies conduct corresponding synchronous position adjustment so as to adapt to deflection of workpieces on the welding table, the limitation of a traditional device on positioning adjustment is broken through through the multi-degree-of-freedom dynamic adjusting mode, and the workpiece positioning requirements of various complex shapes and welding requirements can be met.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of laser welding, in particular to a CDC assembly laser welding integrated positioning device. BACKGROUND

[0002] The CDC assembly laser welding integrated positioning device is an industrial equipment integrating laser welding and precise positioning functions, and is used for high-precision welding of complex structural parts (such as automobile chassis, battery modules, aerospace parts and the like).

[0003] In the process of positioning and welding a workpiece, the existing CDC assembly laser welding integrated positioning device can also allow the workpiece to be dynamically adjusted to a certain extent (that is, the angle is adjusted in the horizontal direction or the vertical direction), but it is difficult to realize multi-degree-of-freedom dynamic positioning and real-time error compensation of the workpiece in the welding process, that is, the welding seam precision and consistency need to be improved. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the utility model aims at solving the defects in the background art, and provides a CDC assembly laser welding integrated positioning device to solve the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides a CDC assembly laser welding integrated positioning device, which comprises a device frame, a base disc is fixedly installed on the device frame, a welding table is movably installed above the base disc through a multi-degree-of-freedom dynamic positioning mechanism, a guide rod is fixedly connected to the front end face of the device frame, a sliding seat is slidably connected to the outer surface of the guide rod, a seat shaft is fixedly arranged in the inner side of the sliding seat, an energy box is rotatably connected to the outer surface of the seat shaft through a driving adjusting mechanism, a laser welding gun is arranged on the energy box, and a control console is arranged on the device frame.

[0006] Preferably, the multi-degree-of-freedom dynamic positioning mechanism comprises a lower turntable rotatably connected to the upper surface of the base disc, the number of the lower turntables is three, and the three lower turntables are uniformly distributed on the upper surface of the base disc, so that the workpiece on the welding table can be flexibly and dynamically adjusted in angle.

[0007] Preferably, a lower table shaft is fixedly arranged in the inner side of the lower turntable, a hydraulic cylinder is rotatably connected to the outer surface of the lower table shaft, and a hydraulic rod is fixedly connected to the output end of the hydraulic cylinder.

[0008] Preferably, an upper turntable is rotatably connected to the bottom of the welding table, the number of the upper turntables is three, the three upper turntables are uniformly distributed along the bottom of the welding table, upper table shafts are fixedly arranged in the inner sides of the three upper turntables, and the outer surfaces of the upper table shafts are rotatably connected to the top end of the hydraulic rod.

[0009] Preferably, the driving adjusting mechanism comprises a first concave plate fixedly connected to the outer surface of the sliding seat, a first plate shaft is fixedly arranged in the inner side of the first concave plate, and the outer surface of the first plate shaft is rotationally connected with the electric push rod.

[0010] Preferably, the outer surface of the energy box is fixedly connected with a second concave plate, a second plate shaft is fixedly arranged in the inner side of the second concave plate, and the outer surface of the second plate shaft is rotationally connected with the output end of the electric push rod.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1、The CDC assembly laser welding integrated positioning device utilizes the cooperative work of three groups of dynamic positioning components (containing a hydraulic cylinder, a hydraulic rod, an upper table shaft, an upper rotary table and the like) to flexibly adjust the position of a workpiece in multiple directions and angles during welding, when the hydraulic cylinder in any one group of dynamic positioning components works in cooperation with the hydraulic rod, the welding table can be lifted at the position, and the other two groups of dynamic positioning components are synchronously adjusted in position to adapt to the deflection of the workpiece on the welding table.

[0013] 2、The CDC assembly laser welding integrated positioning device can real-timely adjust the laser emission angle and position of a laser welding gun through a driving adjusting mechanism, the dynamic adjusting mechanism cooperates with the multi-degree-of-freedom dynamic positioning mechanism to timely sense and compensate errors generated in the welding process due to various factors (such as thermal deformation of a workpiece, mechanical vibration and the like), ensure that the laser is always accurately irradiated on the weld position, effectively reduce welding defects caused by error accumulation, and greatly improve the precision and consistency of the weld. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a schematic view of the overall structure of the present application;

[0015] Fig. 2 It is a schematic view of the bottom structure of the welding table of the present application;

[0016] Fig. 3 It is a schematic view of the surface structure of the sliding seat of the present application.

[0017] Wherein: 1, device frame; 2, base disc; 3, lower turntable; 4, lower shaft; 5, hydraulic cylinder; 6, hydraulic rod; 7, upper shaft; 8, upper turntable; 9, welding table; 10, guide rod; 11, sliding seat; 12, seat shaft; 13, energy box; 14, laser welding gun; 15, first concave plate; 16, first plate shaft; 17, electric push rod; 18, second concave plate; 19, second plate shaft; 20, control console. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0019] Please refer to Figs. 1-3 A CDC assembly laser welding integrated positioning device, comprising a device frame 1, a base disc 2 is fixedly installed on the device frame 1, a welding table 9 is movably installed on the upper side of the base disc 2 through a multi-degree-of-freedom dynamic positioning mechanism, three sets of related components such as hydraulic cylinders 5 and hydraulic rods 6 are arranged between the base disc 2 and the welding table 9, and are uniformly distributed in the area between the base disc 2 and the welding table 9, a guide rod 10 is fixedly connected to the front end face of the device frame 1, the guide rod 10 is provided with three guide rods, which plays a role of relative limiting of the sliding seat 11, so that the sliding seat 11 can only slide horizontally along the guide rod 10, the sliding seat 11 is slidably connected to the outer surface of the guide rod 10, a seat shaft 12 is fixedly arranged in the inner side of the sliding seat 11, an energy box 13 is rotatably connected to the outer surface of the seat shaft 12 through a driving adjusting mechanism, a laser welding gun 14 is arranged on the energy box 13, and a control console 20 is arranged on the device frame 1. The technician can control the work of the hydraulic cylinders 5, the hydraulic rods 6 and the electric push rod 17, and control the lifting and pulling rate on the control console 20.

[0020] Through the above technical solution, in the process of laser welding of the workpiece, the workpiece needs to be placed on the welding table 9 first, the electric energy in the energy box 13 is transmitted to the laser welding gun 14, the laser welding gun 14 emits in the form of laser, so as to laser weld the workpiece. In this process, the position of the workpiece can be adjusted through the multi-degree-of-freedom dynamic positioning mechanism, and the laser emission angle of the laser welding gun 14 is adjusted by starting the adjusting mechanism, so as to achieve multi-degree-of-freedom dynamic positioning and real-time error compensation of the workpiece during welding, so as to improve the welding precision.

[0021] Specifically, the multi-degree-of-freedom dynamic positioning mechanism comprises a lower turntable 3 rotatably connected to the upper surface of the base disc 2, and three sets of lower turntables 3 are uniformly distributed on the upper surface of the base disc 2.

[0022] Through the technical scheme, the lower rotating table 3 and the upper rotating table 8 are provided with three corresponding groups, one of the lower rotating table 3, the lower table shaft 4, the hydraulic cylinder 5, the hydraulic rod 6, the upper table shaft 7 and the upper rotating table 8 are regarded as a dynamic positioning assembly (hereinafter referred to as a positioning member), and there are three groups of such positioning assemblies, which are uniformly distributed on the base disc 2 and the welding table 9.

[0023] Specifically, the inner side of the lower rotating table 3 is fixedly provided with the lower table shaft 4, the outer surface of the lower table shaft 4 is rotatably connected with the hydraulic cylinder 5, and the output end of the hydraulic cylinder 5 is fixedly connected with the hydraulic rod 6.

[0024] Through the technical scheme, the lower rotating table 3 and the hydraulic cylinder 5, the hydraulic rod 6, and the upper rotating table 8 are provided with three groups, and the three groups of components are uniformly distributed between the base disc 2 and the welding table 9, so that when the position of the welding table 9 is lifted through any one group of hydraulic cylinder 5 and hydraulic rod 6, the workpiece on the welding table 9 can be adjusted at a corresponding angle.

[0025] Specifically, the bottom of the welding table 9 is rotatably connected with the upper rotating table 8, and the number of the upper rotating table 8 is three groups, the three groups of upper rotating tables 8 are uniformly distributed along the bottom of the welding table 9, the inner side of the three groups of upper rotating tables 8 is fixedly provided with the upper table shaft 7, and the outer surface of the upper table shaft 7 is rotatably connected with the top end of the hydraulic rod 6.

[0026] Through the technical scheme, the upper rotating table 8 and the lower rotating table 3 can rotate along the bottom of the welding table 9 and the top of the base disc 2 respectively, which is also to improve the angle adjustment range during the welding process of the workpiece.

[0027] Specifically, the driving adjusting mechanism includes a first recessed plate 15 fixedly connected to the outer surface of the sliding seat 11, a first plate shaft 16 fixedly provided in the inner side of the first recessed plate 15, and an electric push rod 17 rotatably connected to the outer surface of the first plate shaft 16.

[0028] Through the technical scheme, after the electric push rod 17 is turned on, it will push and pull the second plate shaft 19, and at the same time, it will also deflect at a certain angle along the first plate shaft 16, so the first recessed plate 15 and the first plate shaft 16 are designed.

[0029] Specifically, the outer surface of the energy box 13 is fixedly connected with a second recessed plate 18, the inner side of the second recessed plate 18 is fixedly provided with a second plate shaft 19, and the outer surface of the second plate shaft 19 is rotatably connected with the output end of the electric push rod 17.

[0030] Through the technical scheme, during the process of pushing and pulling the second plate shaft 19 by the electric push rod 17, the output end of the electric push rod 17 will rotate at a certain angle along the second plate shaft 19, and during this period, the energy box 13 will rotate along the seat shaft 12 to synchronously adjust the laser emission angle of the laser welding gun 14.

[0031] Working principle: in the process of laser welding workpiece, need to be placed on the welding table 9, by the energy box 13 in the electric energy to the laser welding gun 14, let the laser welding gun 14 in the form of laser emission, so as to carry out laser welding workpiece, and in the process of workpiece welding, the position of the workpiece welding process can be adjusted flexibly after positioning, cooperate with the drive adjusting mechanism to adjust the laser emission angle of the laser welding gun 14, in order to play the effect of real-time error compensation, improve the welding precision and consistency effect, this process is realized by the operator in the operation table 20 operation, that is, by operating the operation table 20, the hydraulic cylinder 5 and the hydraulic rod 6 can be opened, or the electric push rod 17, when the hydraulic cylinder 5 in the base plate 2 and the welding table 9 between any one group of positioning parts cooperates with the hydraulic rod 6, the hydraulic rod 6 will push and pull the upper turntable 8 in contact with the corresponding upper table shaft 7, so as to push and pull the welding table 9 in this position through the upper turntable 8, during which the hydraulic cylinder 5 and the hydraulic rod 6 in the other two groups of positioning parts need to be adjusted synchronously, (at the same time, the lower turntable 3 and the upper turntable 8 can be rotated to facilitate the smooth deflection of the welding table 9), in order to adapt to the angle deflection of the welding table 9, the dynamic adjustment of three groups of different positioning parts effectively improves the deflection angle of the welding table 9, that is, the multi-degree-of-freedom dynamic positioning of the workpiece is realized, and in the process of pushing and pulling the second plate shaft 19 by the electric push rod 17, the energy box 13 will rotate along the seat shaft 12, and then adjust the laser emission angle of the laser welding gun 14, cooperate with the sliding of the sliding seat 11 on the guide rod 10, can easily adjust the horizontal position of the laser welding gun 14, in order to carry out real-time error compensation for the workpiece welding process, finally achieve the purpose of improving the welding precision and consistency.

[0032] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A laser welding integrated positioning device for CDC assembly, comprising a device frame (1), characterized in that: The device frame (1) is fixedly installed with a base disc (2), the upper side of the base disc (2) is movably installed with a welding table (9) through a multi-degree-of-freedom dynamic positioning mechanism, the front end surface of the device frame (1) is fixedly connected with a guide rod (10), the outer surface of the guide rod (10) is slidably connected with a sliding seat (11), the inner side of the sliding seat (11) is fixedly provided with a seat shaft (12), the outer surface of the seat shaft (12) is rotatably connected with an energy box (13) through a driving adjusting mechanism, the energy box (13) is provided with a laser welding gun (14), and the device frame (1) is provided with a control console (20).

2. The laser welding integrated positioning device for a CDC assembly of claim 1, wherein: The multi-degree-of-freedom dynamic positioning mechanism comprises a lower rotating table (3) rotatably connected to the upper surface of the base disc (2), the number of the lower rotating table (3) is three, and the three lower rotating tables (3) are uniformly distributed on the upper surface of the base disc (2).

3. The laser welding integrated positioning device for a CDC assembly of claim 2, wherein: The inner side of the lower rotating table (3) is fixedly provided with a lower table shaft (4), the outer surface of the lower table shaft (4) is rotatably connected with a hydraulic cylinder (5), and the output end of the hydraulic cylinder (5) is fixedly connected with a hydraulic rod (6).

4. The laser welding integrated positioning device for a CDC assembly of claim 3, wherein: The bottom of the welding table (9) is rotatably connected with an upper rotating table (8), the number of the upper rotating table (8) is three, the three upper rotating tables (8) are uniformly distributed along the bottom of the welding table (9), the inner side of the three upper rotating tables (8) is fixedly provided with an upper table shaft (7), and the outer surface of the upper table shaft (7) is rotatably connected with the top end of the hydraulic rod (6).

5. The laser welding integrated positioning device for a CDC assembly of claim 1, wherein: The driving adjusting mechanism comprises a first recessed plate (15) fixedly connected to the outer surface of the sliding seat (11), the inner side of the first recessed plate (15) is fixedly provided with a first plate shaft (16), and the outer surface of the first plate shaft (16) is rotatably connected with an electric push rod (17).

6. The laser welding integrated positioning device for a CDC assembly of claim 5, wherein: The outer surface of the energy box (13) is fixedly connected with a second recessed plate (18), the inner side of the second recessed plate (18) is fixedly provided with a second plate shaft (19), and the outer surface of the second plate shaft (19) is rotatably connected with the output end of the electric push rod (17).

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