Welding device and welding process for new energy automobile battery electrolyte packaging container support

Abstract

The new energy automobile battery electrolyte packaging container support welding device comprises a welding support and a welding robot, the welding support comprises a support part and a driving part, the support part comprises a turnover frame and a clamp arranged on the turnover frame, the clamp is arranged on the turnover frame, and the welding robot is arranged on the turnover frame. The driving part drives a rotating frame to rotate in the forward direction through a first motor, the rotating frame drives a second motor to rotate, the second motor drives an overturning shaft to rotate in the reverse direction, and therefore bidirectional rotation is conducted to achieve the purpose of adjusting the angle of the welding support. According to the driving part, the angle is jointly adjusted through the two parts of gear structures driving in the opposite directions, errors caused by the distance between adjacent teeth when the gear structures are adjusted can be overcome during adjustment, therefore, the adjusting precision is improved, then the driving part is matched with a welding robot for welding, the welding position is accurate, and the welding quality is improved.

Description

Technical Field

[0001] The invention relates to a welding device and a process, and in particular to a welding device and a welding process for a bracket of an electrolyte packaging container of a battery of a new energy vehicle. Background Art

[0002] New energy vehicle battery electrolyte packaging containers are used to store and transport new energy vehicle battery electrolytes. Since they are cylindrical barrels, they are difficult to lift and fix during transportation after being filled with electrolytes. Therefore, it is generally necessary to weld a bracket on the barrel to solve this problem.

[0003] If manual welding is used in the welding process of the bracket, it will lead to low efficiency and high cost. Therefore, most of them use manual spot welding for positioning, and then use welding robots for secondary welding. In this welding process, a clamp is needed to fix the bracket, and the angle needs to be adjusted during the welding process.

[0004] At present, the fixed bracket on the market is generally driven to rotate by a rotary cylinder or a gear set. Since the rotary cylinder has a gear rack structure inside, there are errors in the driving method of the rotary cylinder and the gear set, that is, the error caused by the pitch of two adjacent teeth of the gear. This will cause the angle of the fixed bracket to be unable to be accurately adjusted during the welding process, thereby causing welding position deviation and affecting the welding quality. Summary of the invention

[0005] Based on the deficiency in the prior art that the fixed bracket cannot accurately adjust the angle, resulting in welding position deviation and affecting the welding quality, the present invention provides a welding device and a welding process for a bracket of an electrolyte packaging container of a new energy vehicle battery.

[0006] The technical solution adopted by the present invention to solve the above technical problems is: a welding device for a new energy vehicle battery electrolyte packaging container bracket includes a welding support and a welding robot, the welding support includes a support part and a driving part, the support part includes a flip frame and a fixture arranged on the flip frame, and the fixture is arranged on the flip frame; the driving part includes:

[0007] A supporting box body, comprising two pairs of boxes arranged on the ground;

[0008] A turning shaft, which is rotatably arranged inside the supporting box and whose inner end extends into the supporting box, and is connected to the turning frame;

[0009] The rotating frame is rotatably arranged in the supporting box, and the turning shaft is rotatably connected with the rotating frame coaxially;

[0010] The driving motor includes a first motor and a self-locking second motor. The first motor is arranged outside the supporting box body, and the first motor is arranged outside the supporting box body and its output end is transmission-connected to the rotating frame. The second motor is arranged on the rotating frame and its output end is transmission-connected to the flip shaft. The rotating frame and the flip shaft rotate in opposite directions at the same time under the drive of the first motor and the second motor.

[0011] Preferably, a frame shaft is provided on the rotating frame and is supported by a bearing arranged in the supporting box, a first gear is provided on the frame shaft, a second gear is provided at the output end of the first motor, and the first gear is meshed with the second gear.

[0012] Preferably, a third gear is provided on the flip shaft, a fourth gear is provided at the output end of the second motor, the third gear is meshed with the fourth gear, and the transmission ratios between the first gear and the second gear and between the third gear and the fourth gear are different.

[0013] Preferably, the welding robot comprises a mechanical arm with four degrees of freedom and a welding gun arranged on the mechanical arm. In addition, an automatic wire feeder for feeding wire to the welding gun is provided.

[0014] Preferably, two welding supports are provided, and the welding robot is arranged between the two welding supports.

[0015] Preferably, a connecting flange is provided at the end of the flip shaft, a plurality of mounting holes are provided on the connecting flange, and the flip frame is connected to the connecting flange via fasteners.

[0016] Preferably, the flip frame includes two connecting arms and a supporting frame, one end of the two connecting arms is connected to the connecting flanges on the two flip shafts, and the other end of the two connecting arms is detachably connected to both ends of the supporting frame.

[0017] Preferably, a plurality of L-shaped limit seats are detachably provided on the support frame, and the side walls of the L-shaped limit seats abut against the new energy vehicle battery electrolyte packaging container support to limit the new energy vehicle battery electrolyte packaging container support.

[0018] Preferably, the clamp includes a plurality of telescopic cylinders arranged on a supporting frame, a clamping arm is provided at the output end of the telescopic cylinder, a clamping rod is provided on the clamping arm and a clamping block is provided at the end of the clamping rod, the clamping arm includes a first clamping arm connected to the output end of the telescopic cylinder and a second clamping arm connected to the first clamping arm, and the angles between the first clamping arm and the output end of the telescopic cylinder and between the second clamping arm and the first clamping arm are both adjustable.

[0019] The welding process of the support for the electrolyte packaging container of the battery of a new energy vehicle is performed by using the welding device for the support for the electrolyte packaging container of the battery of a new energy vehicle, and the welding process comprises the following steps:

[0020] S1, clamping, spot welding the new energy vehicle battery electrolyte packaging container bracket, placing it on the flip rack and clamping it with a clamp;

[0021] S2, welding, start the welding robot to automatically weld the new energy vehicle battery electrolyte packaging container bracket. During welding, the driving part drives the flip shaft to rotate, thereby driving the entire flip frame to rotate to adjust the angle of the new energy vehicle battery electrolyte packaging container bracket;

[0022] In step S2, the rotating frame is driven to rotate in the forward direction by the first motor, the rotating frame drives the second motor to rotate, and the second motor drives the flip shaft to rotate in the reverse direction. The transmission ratio of the first gear and the second gear is set to a, and the transmission ratio of the third gear and the fourth gear is set to b, a≠b, and the number of revolutions of the first motor and the second motor in the same time t is set to c and d respectively, so that the first motor drives the rotating frame to rotate E degrees, and the second motor drives the rotating shaft to rotate F degrees within the time t. Then (EF) is taken as an adjustment unit, and the required adjustment angle is set to M. The number of revolutions required for the first motor to rotate is M˙c / (EF), and the number of revolutions required for the second motor to rotate is M˙d / (EF).

[0023] Compared with the prior art, the advantages of the present invention are as follows: the driving part of the present invention adjusts the angle together through two gear structures driven in opposite directions. During adjustment, the error caused by the spacing between adjacent teeth during adjustment of the gear structure can be overcome, thereby improving the adjustment accuracy, and then cooperating with the welding robot for welding to make the welding position accurate and improve the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be used as a limitation on the scope of the present invention. In addition, unless otherwise specified, the drawings are only schematically representing the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0025] Figure 1 and 2 is a stereogram of Example 1;

[0026] Figure 3 This is a three-dimensional diagram of one of the welding supports;

[0027] Figure 4 This is a three-dimensional image of one of the welding supports (without the supporting box);

[0028] Figure 5 This is a three-dimensional diagram of a welding robot;

[0029] Figure 6for Figure 4 The enlarged view of point A in the middle;

[0030] In the figure: 10, welding support; 101, driving part; 1010, supporting box; 1011, first motor; 1012, second gear; 1013, rotating frame; 1014, third gear; 1015, connecting flange; 1016, turning axis; 1017, fourth gear; 1018, second motor; 1019, frame axis; 1020, first gear; 102, support part; 1021, connecting arm; 1022, supporting frame; 1023, limiting seat; 20, welding robot; 201, mechanical arm; 202, welding gun; 30, clamp; 301, telescopic cylinder; 302, first clamping arm; 303, second clamping arm; 304, clamping rod. DETAILED DESCRIPTION

[0031] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are only illustrative and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0032] It should be noted that like reference numerals denote similar items in the following drawings, and thus, once an item is defined in one drawing, it may not be further defined or explained in subsequent drawings.

[0033] Example 1

[0034] This embodiment mainly describes the title of the welding device for the electrolyte packaging container bracket of the new energy vehicle battery. The technical solution adopted by the present invention to solve the above technical problems is:

[0035] The welding device of the support of the electrolyte packaging container of the battery of the new energy vehicle comprises a welding support 10 and a welding robot 20, wherein the welding support 10 comprises a support part 102 and a driving part 101, the support part 102 comprises a turning frame and a fixture 30 arranged on the turning frame, and the fixture 30 is arranged on the turning frame; the driving part 101 comprises:

[0036] A supporting box 1010, comprising two pairs of boxes arranged on the ground;

[0037] The turning shaft 1016 is rotatably arranged inside the supporting box 1010 and its inner end extends into the supporting box 1010, and is connected to the turning frame;

[0038] The rotating frame 1013 is rotatably disposed in the supporting box 1010, and the flip shaft 1016 is rotatably connected to the rotating frame 1013 coaxially;

[0039] The driving motor includes a first motor 1011 and a self-locking second motor 1018. The first motor 1011 is arranged outside the supporting box 1010. The first motor 1011 is arranged outside the supporting box 1010 and its output end is transmission-connected to the rotating frame 1013. The second motor 1018 is arranged on the rotating frame 1013 and its output end is transmission-connected to the flip shaft 1016. The rotating frame 1013 and the flip shaft 1016 rotate in opposite directions at the same time under the drive of the first motor 1011 and the second motor 1018.

[0040] Preferably, a frame shaft 1019 is provided on the rotating frame 1013 and is supported by a bearing arranged in the supporting box 1010, a first gear 1020 is provided on the frame shaft 1019, a second gear 1012 is provided at the output end of the first motor 1011, and the first gear 1020 and the second gear 1012 are meshed.

[0041] Preferably, a third gear 1014 is provided on the flip shaft 1016, a fourth gear 1017 is provided at the output end of the second motor 1018, the third gear 1014 is meshed with the fourth gear 1017, and the transmission ratios between the first gear 1020 and the second gear 1012 and between the third gear 1014 and the fourth gear 1017 are different.

[0042] Preferably, the welding robot 20 includes a mechanical arm 201 with four degrees of freedom and a welding gun 202 disposed on the mechanical arm 201 . In addition, an automatic wire feeder for feeding wire to the welding gun 202 is provided.

[0043] Preferably, two welding supports 10 are provided, and the welding robot 20 is arranged between the two welding supports 10 .

[0044] Preferably, a connecting flange 1015 is provided at the end of the flip shaft 1016, a plurality of mounting holes are provided on the connecting flange 1015, and the flip frame is connected to the connecting flange 1015 via fasteners.

[0045] Preferably, the flip frame includes two connecting arms 1021 and a supporting frame 1022 , one end of the two connecting arms 1021 is connected to the connecting flanges 1015 on the two flip shafts 1016 , and the other end of the two connecting arms 1021 is detachably connected to both ends of the supporting frame 1022 .

[0046] Preferably, a plurality of L-shaped limit seats 1023 are detachably provided on the support frame 1022, and the side walls of the L-shaped limit seats 1023 abut against the new energy vehicle battery electrolyte packaging container support to limit the new energy vehicle battery electrolyte packaging container support.

[0047] Preferably, the clamp 30 includes a plurality of telescopic cylinders 301 arranged on the supporting frame 1022, a clamping arm is provided at the output end of the telescopic cylinder 301, a clamping rod 304 is provided on the clamping arm and a clamping block is provided at the end of the clamping rod 304, the clamping arm includes a first clamping arm 302 connected to the output end of the telescopic cylinder 301 and a second clamping arm 303 connected to the first clamping arm 302, and the angles between the first clamping arm 302 and the output end of the telescopic cylinder 301 and between the second clamping arm 303 and the first clamping arm 302 are adjustable.

[0048] Example 2

[0049] This embodiment mainly describes the welding process of the electrolyte packaging container bracket of the new energy vehicle battery. The technical solution adopted by the present invention to solve the above technical problems is:

[0050] The welding process of the support for the electrolyte packaging container of the battery of a new energy vehicle is performed by using the welding device for the support for the electrolyte packaging container of the battery of a new energy vehicle, and the welding process comprises the following steps:

[0051] S1, clamping, spot welding the new energy vehicle battery electrolyte packaging container bracket, placing it on the flip rack and clamping it with a clamp;

[0052] S2, welding, start the welding robot to automatically weld the new energy vehicle battery electrolyte packaging container bracket. During welding, the driving part drives the flip shaft to rotate, thereby driving the entire flip frame to rotate to adjust the angle of the new energy vehicle battery electrolyte packaging container bracket;

[0053] In step S2, the rotating frame is driven to rotate in the forward direction by the first motor, the rotating frame drives the second motor to rotate, and the second motor drives the flip shaft to rotate in the reverse direction. The transmission ratio of the first gear and the second gear is set to a, and the transmission ratio of the third gear and the fourth gear is set to b, a≠b, and the number of revolutions of the first motor and the second motor in the same time t is set to c and d respectively, so that the first motor drives the rotating frame to rotate E degrees, and the second motor drives the rotating shaft to rotate F degrees within the time t. Then (EF) is taken as an adjustment unit, and the required adjustment angle is set to M. The number of revolutions required for the first motor to rotate is M˙c / (EF), and the number of revolutions required for the second motor to rotate is M˙d / (EF). For example, if the rotation angle needs to be accurate to 0.1 degree, and the specific rotation angle is 3.3 degrees, then EF = 0.1, and the two motors can rotate for another 33t, or EF = 3.3 degrees. According to the adjustment angle, if EF can be directly made equal to the adjustment angle, the number of motor rotations can be reduced. If the adjustment angle cannot be obtained directly, set the EF value to the minimum value of the required precise order of magnitude, such as 0.1, 0.01, etc., and then control the final rotation angle by the number of motor rotations.

[0054] Two of the motors are servo motors, and the number of rotations and speed are accurately controlled by angle sensors and controllers. The shafts in the support box are supported by bearings and rotate in the support box.

[0055] The above is a detailed introduction to the welding device and welding process of the new energy vehicle battery electrolyte packaging container bracket provided by the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the present invention and its core ideas. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified in several ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A welding device for a new energy vehicle battery electrolyte packaging container bracket, characterized in that: The invention comprises a welding support and a welding robot. The welding support comprises a support part and a driving part. The support part comprises a turning frame and a fixture arranged on the turning frame, and the fixture is arranged on the turning frame. The driving part comprises: A supporting box body, comprising two pairs of boxes arranged on the ground; A turning shaft, which is rotatably arranged inside the supporting box and whose inner end extends into the supporting box, and is connected to the turning frame; A rotating frame is rotatably arranged in a supporting box body, and a flip shaft is coaxially rotatably connected with the rotating frame; a driving motor comprises a first motor and a self-locking second motor, wherein the first motor is arranged outside the supporting box body, the first motor is arranged outside the supporting box body and an output end thereof is transmission-connected with the rotating frame, the second motor is arranged on the rotating frame and an output end thereof is transmission-connected with the flip shaft, and the rotating frame and the flip shaft rotate in opposite directions simultaneously under the drive of the first motor and the second motor.

2. The welding device for the electrolyte packaging container support of the new energy vehicle battery according to claim 1 is characterized in that: A frame shaft is arranged on the rotating frame and is supported by a bearing arranged in the supporting box body. A first gear is arranged on the frame shaft, and a second gear is arranged at the output end of the first motor. The first gear is meshed with the second gear.

3. The welding device for the electrolyte packaging container support of the new energy vehicle battery according to claim 2 is characterized in that: A third gear is arranged on the flip shaft, a fourth gear is arranged at the output end of the second motor, the third gear is meshed with the fourth gear, and the transmission ratios between the first gear and the second gear and between the third gear and the fourth gear are different.

4. The welding device for the electrolyte packaging container support of the new energy vehicle battery according to claim 3 is characterized in that: The welding robot comprises a mechanical arm with four degrees of freedom and a welding gun arranged on the mechanical arm. In addition, an automatic wire feeder for feeding wire to the welding gun is arranged.

5. The welding device for the electrolyte packaging container support of the new energy vehicle battery according to claim 4 is characterized in that: Two welding supports are provided, and the welding robot is arranged between the two welding supports.

6. The welding device for the electrolyte packaging container support of the new energy vehicle battery according to claim 5 is characterized in that: A connecting flange is arranged at the end of the turning shaft, a plurality of mounting holes are arranged on the connecting flange, and the turning frame is connected to the connecting flange through a fastener.

7. The welding device for the electrolyte packaging container support of the new energy vehicle battery according to claim 6 is characterized in that: The flip frame comprises two connecting arms and a supporting frame, one end of the two connecting arms is connected to the connecting flanges on the two flip shafts, and the other ends of the two connecting arms are detachably connected to the two ends of the supporting frame.

8. The welding device for the electrolyte packaging container support of the new energy vehicle battery according to claim 7 is characterized in that: A plurality of L-shaped limit seats are detachably provided on the support frame, and the side walls of the L-shaped limit seats abut against the new energy vehicle battery electrolyte packaging container support to limit the new energy vehicle battery electrolyte packaging container support.

9. The welding device for the electrolyte packaging container support of the new energy vehicle battery according to claim 8 is characterized in that: The clamp includes a plurality of telescopic cylinders arranged on a supporting frame, a clamping arm is provided at the output end of the telescopic cylinder, a clamping rod is provided on the clamping arm and a clamping block is provided at the end of the clamping rod, the clamping arm includes a first clamping arm connected to the output end of the telescopic cylinder and a second clamping arm connected to the first clamping arm, and the angles between the first clamping arm and the output end of the telescopic cylinder and between the second clamping arm and the first clamping arm are both adjustable.

10. The welding process of the support for the electrolyte packaging container of the new energy vehicle battery is characterized in that: The welding is performed using the new energy vehicle battery electrolyte packaging container bracket welding device according to any one of claims 5 to 9, which comprises the following steps: S1, clamping, spot welding the new energy vehicle battery electrolyte packaging container bracket, placing it on the flip rack and clamping it with a clamp; S2, welding, start the welding robot to automatically weld the new energy vehicle battery electrolyte packaging container bracket. During welding, the driving part drives the flip shaft to rotate, thereby driving the entire flip frame to rotate to adjust the angle of the new energy vehicle battery electrolyte packaging container bracket; In step S2, the rotating frame is driven to rotate in the forward direction by the first motor, the rotating frame drives the second motor to rotate, and the second motor drives the flip shaft to rotate in the reverse direction. The transmission ratio of the first gear and the second gear is set to a, and the transmission ratio of the third gear and the fourth gear is set to b, a≠b, and the number of revolutions of the first motor and the second motor in the same time t is set to c and d respectively, so that the first motor drives the rotating frame to rotate E degrees, and the second motor drives the rotating shaft to rotate F degrees within the time t. Then (EF) is taken as an adjustment unit, and the required adjustment angle is set to M. The number of revolutions required for the first motor to rotate is M˙c / (EF), and the number of revolutions required for the second motor to rotate is M˙d / (EF).

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