Positioning welding detection device for upper shell of battery pack

Abstract

The utility model discloses a battery pack upper shell positioning welding detection device which comprises a rack and a welding device arranged on the rack or on one side of the rack, the rack is provided with a set of positioning assemblies used for positioning an upper shell, and the positioning assemblies are located under the positions where studs need to be welded to the upper shell; the outer side of the positioning assembly is provided with a limiting assembly used for limiting the upper shell on the positioning assembly, the rack is further provided with an overturning frame in a pivot mode, and the overturning frame can be driven by a driving assembly to be pressed on the upper surface of the upper shell. The overturning frame is further provided with a detection assembly used for detecting the welding firmness of the stud. The automatic welding device has the advantages that the design is exquisite, full-automatic positioning, welding and detecting of the upper shell are achieved, whole-process automatic operation is achieved, the working efficiency is greatly improved, in addition, interference can be automatically avoided in the feeding and working process, and the working efficiency and the yield are greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of detection technology, and in particular to a battery pack upper shell positioning welding detection device. Background Art

[0002] Battery electric vehicles (BEV) are vehicles that use an onboard power source as a driving force and use an electric motor to drive the wheels. Compared with fuel vehicles, pure electric vehicles have four major components: drive motor, speed controller, power battery, and onboard charger.

[0003] The production of power batteries includes the production of battery bodies and battery shells. In order to ensure that electric vehicles have sufficient power, there needs to be enough space to accommodate enough batteries, so the production of battery shells is crucial. The production of battery shells is mostly made separately, and finally the whole is assembled together by welding and other methods to form a box-shaped battery shell.

[0004] The traditional welding process lacks positioning components, and personnel weld directly at the joints. Since the battery shell of new energy vehicles is more than 2 meters long, it is difficult for personnel to align the joints during welding, making welding difficult. During welding, shaking of the hands will lead to reduced welding quality. For example, the patent document with patent publication number CN212239777U discloses a new energy vehicle battery lower shell welding equipment, which provides convenience for welding personnel through the provision of a welding platform, a workpiece clamping and fixing mechanism, a workpiece clamping and positioning mechanism, a workpiece lifting mechanism, and a workpiece unloading device. However, the structure of the patent is complex, especially the workpiece clamping and fixing mechanism is also provided on the top of the battery shell, which will hinder the work of the welders, greatly interfere with the welding work, and reduce work efficiency. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a battery pack upper shell positioning welding detection device.

[0006] The purpose of the utility model is achieved through the following technical solutions:

[0007] A battery pack upper shell positioning welding detection device comprises a frame and a welder arranged on or on one side thereof, wherein the frame is provided with a group of positioning components for positioning the upper shell, and the positioning components are located directly below the studs to be welded on the upper shell; a limiting component for limiting the upper shell on the positioning component is provided on the outer side of the positioning component, and a flip frame is also pivotally provided on the frame, and the flip frame can be pressed on the upper surface of the upper shell under the drive of the driving component, and the flip frame is also provided with a detection component for detecting the welding firmness of the studs.

[0008] Preferably, the positioning assembly at least includes an L-shaped positioning plate, a locking plate is quickly connected to the positioning plate, a copper block is quickly connected to the upper surface of the locking plate, and an insulating and high-temperature resistant elastic sheet is also provided between the copper block and the locking plate.

[0009] Preferably, the positioning plate includes a vertical end and a horizontal end, and a reinforcing rib is provided between the two ends, and the reinforcing rib is triangular; an insulating pad is fixedly provided at the bottom of the horizontal end, and the horizontal end is locked to the frame by a locking screw. The limiting assembly at least includes a limiting cylinder fixedly provided on the frame, a supporting block is fixedly provided on the shell of the limiting cylinder, a transmission arm is pivotally provided on the supporting block, a driving arm is pivotally provided on the cylinder shaft of the limiting cylinder, and the other end of the driving arm is pivotally connected to the middle part of the transmission arm, a limiting block that can be pressed on the upper shell is fixedly provided on the transmission arm, and a heat dissipation block may be provided on the limiting block.

[0010] Preferably, a positioning groove is formed on the limit block, and a positioning block is fixedly provided on the locking plate, and the contour of the positioning block is matched with the positioning groove.

[0011] Preferably, the detection assembly comprises at least one set of support plates fixedly mounted on the flip frame, a telescopic cylinder is fixedly mounted on the support plates, and a push block is fixedly mounted on the cylinder shaft of the telescopic cylinder.

[0012] Preferably, the pushing block is made of urea rubber.

[0013] Preferably, the driving component is at least arranged on a rotating shaft on the frame, a sleeve is sleeved on the rotating shaft, a driving block is fixedly arranged on the sleeve, and the flip frame is fixedly arranged on one end of the driving block; a bracket is fixedly arranged on the frame, a driving cylinder is fixedly arranged on the bracket, and the cylinder shaft of the driving cylinder is pivotally connected to the other end of the driving block.

[0014] The beneficial effects of the utility model are mainly reflected in:

[0015] 1. With exquisite design, the device can realize full-automatic positioning, welding and detection of the upper shell, and the whole process is automated, which greatly improves the work efficiency. In addition, it can automatically avoid interference during the loading and working process, which greatly improves the work efficiency and yield rate;

[0016] 2. The setting of the elastic sheet can make the upper shell float at a micro distance when the welder is welding, so as to avoid the welder from compressing and deforming the upper shell, thereby improving the yield rate;

[0017] 3. The setting of reinforcing ribs can improve the stability of the positioning plate, prevent it from deformation under the action of load bearing, extend its service life and reduce enterprise costs. In addition, the setting of insulating pads can further improve safety, eliminate the risk of leakage to the greatest extent, and has a wide range of applicability.

[0018] 4. The setting of the positioning groove and the positioning hole can prevent the limit block from turning over too much, which may cause the upper shell to be damaged, and can reduce the loss caused by misoperation. In addition, the structure is simple, easy to disassemble and install, and greatly improves efficiency.

[0019] 5. The driving cylinder drives the flip frame to flip through the driving block, which can complete the giving way of the upper shell. The operation is simple and convenient, with high stability, which greatly improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The technical solution of the utility model is further described below in conjunction with the accompanying drawings:

[0021] Figure 1 : A three-dimensional diagram of a preferred embodiment of the utility model;

[0022] Figure 2 : Figure 1 A magnified view of part A;

[0023] Figure 3 : A three-dimensional diagram of a positioning assembly in a preferred embodiment of the utility model;

[0024] Figure 4 : A three-dimensional diagram of a position limiting assembly in a preferred embodiment of the utility model;

[0025] Figure 5 : A three-dimensional diagram of the limiting assembly in the preferred embodiment of the utility model. DETAILED DESCRIPTION

[0026] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments are not limited to the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0027] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0028] like Figures 1 to 5 As shown, the utility model discloses a battery pack upper shell positioning welding detection device, including a frame 1 and a welder arranged on or on one side thereof, wherein the welder is arranged on a manipulator to realize fully automatic all-round welding. The structure of the welder and the manipulator is prior art and is not the design point of the utility model, and therefore, no further elaboration will be made here.

[0029] The frame 1 is provided with a group of positioning components 2 for positioning the upper shell 100, and the positioning components 2 are located directly below the studs 101 to be welded on the upper shell 100. The positioning components 2 at least include an L-shaped positioning plate 21, and a locking plate 22 is quickly connected to the positioning plate 21, and a copper block 23 is quickly connected to the upper surface of the locking plate 22, and an insulating and high-temperature resistant elastic sheet 24 is also provided between the copper block 23 and the locking plate 22. The setting of the elastic sheet 24 can make the upper shell float at a micro-distance when the welder is welding, so as to avoid the welder from compressing and deforming the upper shell, thereby improving the yield rate. In addition, the quick-connect structure mentioned above is usually connected by screws. Of course, other connection methods, such as bonding, can also be used, which all belong to the protection scope of the utility model and will not be described in detail here.

[0030] Specifically, the positioning plate 21 includes a vertical end 25 and a horizontal end 26, and a reinforcing rib 27 is provided between the two, and the reinforcing rib 27 is triangular; an insulating pad 28 is fixedly provided at the bottom of the horizontal end 26, and the horizontal end 26 is locked on the frame 1 by a locking screw 29. The provision of the reinforcing rib 27 can improve the stability of the positioning plate 21, prevent it from deforming under the action of load bearing, extend its service life, and reduce enterprise costs. In addition, the provision of the insulating pad 28 can further improve safety, eliminate the risk of leakage to the greatest extent, and has a wide range of applicability.

[0031] The outer side of the positioning assembly 2 is provided with a limiting assembly 3 for limiting the upper shell 100 on the positioning assembly 2, and the limiting assembly 3 at least includes a limiting cylinder 31 fixedly mounted on the frame 1, a supporting block 32 fixedly mounted on the shell of the limiting cylinder 31, a transmission arm 33 pivotally mounted on the supporting block 32, a driving arm pivotally mounted on the cylinder shaft of the limiting cylinder 31, and the other end of the driving arm is pivotally connected to the middle of the transmission arm 33, a limiting block 34 that can be pressed on the upper shell 100 is fixedly mounted on the transmission arm 33, and a heat sink 35 can be mounted on the limiting block 34. A positioning groove 36 is provided on the limiting block 34, and a positioning block 37 is also fixedly mounted on the locking plate 22, and the contour of the positioning block 37 is adapted to the positioning groove 36. The arrangement of the positioning groove and the positioning hole can prevent the limit block from turning over too much, which would cause damage to the upper shell, and can reduce the loss caused by misoperation. In addition, the structure is simple, easy to disassemble and install, and greatly improves efficiency.

[0032] A flip frame 4 is also pivotally provided on the frame 1. The flip frame 4 can be pressed on the upper surface of the upper shell 100 under the drive of the driving assembly 5. The flip frame 4 is also provided with a detection assembly 6 for detecting the welding firmness of the stud 101. The detection assembly 6 includes at least one set of support plates 61 fixed on the flip frame 4, and a telescopic cylinder 62 is fixed on the support plate 61. A push block 63 is fixed on the cylinder shaft of the telescopic cylinder 62. In the above, the push block 63 is made of PU. The use of PU material can prevent the push block 63 from hard contact with the stud, causing wear or scratches, thereby improving the yield rate.

[0033] In this preferred embodiment, the driving assembly 5 is at least provided with a rotating shaft 51 on the frame 1, a sleeve 52 is sleeved on the rotating shaft 51, a driving block 53 is fixedly provided on the sleeve 52, and the turning frame 4 is fixedly provided at one end of the driving block 53; a bracket 54 is fixedly provided on the frame 1, a driving cylinder 55 is fixedly provided on the bracket 54, and the cylinder shaft of the driving cylinder 55 is pivotally connected to the other end of the driving block 53. The driving cylinder 55 drives the turning frame 4 to turn over through the driving block 53, so as to complete the giving way of the upper shell, which is simple and convenient to operate, has high stability, and greatly improves work efficiency.

[0034] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0035] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the utility model. They are not intended to limit the protection scope of the utility model. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A battery pack upper shell positioning welding detection device, comprising a frame (1) and a welder arranged on or on one side of the frame, characterized in that: The frame (1) is provided with a group of positioning components (2) for positioning the upper shell (100), and the positioning components (2) are located directly below the studs (101) to be welded on the upper shell (100); the outer side of the positioning components (2) is provided with a limiting component (3) for limiting the upper shell (100) on the positioning components (2); the frame (1) is also pivotally provided with a flip frame (4), and the flip frame (4) can be pressed against the upper surface of the upper shell (100) under the drive of the driving component (5); the flip frame (4) is also provided with a detection component (6) for detecting the welding firmness of the studs (101).

2. The battery pack upper shell positioning welding detection device according to claim 1, characterized in that: The positioning assembly (2) comprises at least an L-shaped positioning plate (21), a locking plate (22) being quickly connected to the positioning plate (21), a copper block (23) being quickly connected to the upper surface of the locking plate (22), and an insulating and high-temperature resistant elastic sheet (24) being provided between the copper block (23) and the locking plate (22).

3. The battery pack upper shell positioning welding detection device according to claim 2, characterized in that: The positioning plate (21) comprises a vertical end (25) and a horizontal end (26), and a reinforcing rib (27) is provided between the vertical end (25) and the horizontal end (26), wherein the reinforcing rib (27) is triangular in shape; an insulating pad (28) is fixedly provided at the bottom of the horizontal end (26), and the horizontal end (26) is locked on the frame (1) by means of a locking screw (29).

4. The battery pack upper shell positioning welding detection device according to claim 2, characterized in that: The limiting assembly (3) at least comprises a limiting cylinder (31) fixedly mounted on the frame (1); a supporting block (32) fixedly mounted on the shell of the limiting cylinder (31); a transmission arm (33) pivotally mounted on the supporting block (32); a driving arm pivotally mounted on the cylinder shaft of the limiting cylinder (31); the other end of the driving arm pivotally connected to the middle of the transmission arm (33); a limiting block (34) that can be pressed against the upper shell (100) fixedly mounted on the transmission arm (33); and a heat dissipation block (35) can be mounted on the limiting block (34).

5. The battery pack upper shell positioning welding detection device according to claim 4, characterized in that: The limiting block (34) is provided with a positioning groove (36), and the locking plate (22) is also provided with a positioning block (37), the contour of the positioning block (37) being adapted to the positioning groove (36).

6. The battery pack upper shell positioning welding detection device according to claim 1, characterized in that: The detection assembly (6) comprises at least one set of support plates (61) fixedly mounted on the turning frame (4), a telescopic cylinder (62) being fixedly mounted on the support plates (61), and a pushing block (63) being fixedly mounted on the cylinder shaft of the telescopic cylinder (62).

7. The battery pack upper shell positioning welding detection device according to claim 6, characterized in that: The pushing block (63) is made of PU.

8. The battery pack upper shell positioning welding detection device according to claim 1, characterized in that: The driving assembly (5) is at least provided on a rotating shaft (51) on the frame (1); a sleeve (52) is sleeved on the rotating shaft (51); a driving block (53) is fixedly provided on the sleeve (52); one end of the driving block (53) is fixedly provided with the turning frame (4); a bracket (54) is fixedly provided on the frame (1); a driving cylinder (55) is fixedly provided on the bracket (54); a cylinder shaft of the driving cylinder (55) is pivotally connected to the other end of the driving block (53).

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