Pseudo soldering inspection device

Abstract

The utility model discloses a pseudo soldering inspection device, which relates to the technical field of battery tab defect detection and comprises a base, a workbench is arranged at the upper end of the base, a plurality of placing tables are fixed on the front side of the upper end of the workbench at equal intervals, and a fixing plate is fixed on the rear side of the upper end of the workbench; the turnover structure is arranged at the joint of the base and the working table and used for turning over the working table; the inspection structure is arranged at the upper end of the fixing plate and is used for detecting whether the soft package battery tab is subjected to cold solder joint or not and fixing the soft package battery tab; according to the utility model, the detection structure is matched with the overturning structure, the negative electrode detection conductive plate and the positive electrode detection conductive plate of the detection piece are tightly contacted with the negative electrode tab and the positive electrode tab of the soft package battery, when the tabs are well welded, a closed circuit is formed, and the diode is lightened; otherwise, the diode is not turned on; and if the tab is subjected to pseudo soldering, the battery falls off due to the action of gravity in the later overturning process, so that the welding problem is visually displayed.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery tab defect detection technical field, specifically a kind of false welding inspection device. BACKGROUND

[0002] After soft package battery encapsulation, only two tab of positive and negative is exposed, for connecting external device, which makes the reliability of tab welding particularly important.

[0003] However, in actual production process, due to welding process, equipment precision, operator skill level and other factors, tab welding position often appears false welding phenomenon. This not only reduces the performance of battery, such as increasing internal resistance, affecting charge-discharge efficiency, but also may cause battery short circuit, overheating and other problems.

[0004] Traditional soft package battery tab welding quality detection mode mainly relies on artificial visual inspection and simple mechanical test. Artificial visual inspection is intuitive, but is susceptible to human factors, and detection accuracy and consistency are difficult to guarantee. Mechanical test often needs to exert greater external force on battery, which not only may damage battery, but also may not accurately reflect the welding strength of tab.

[0005] Based on this, a false welding inspection device is provided, which can eliminate the drawbacks of existing devices. UTILITY MODEL CONTENT

[0006] The utility model aims at providing a kind of false welding inspection device to solve the problems of artificial visual inspection detection accuracy and consistency difficult to guarantee and mechanical test possibly damaging battery in the background art.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0008] A false welding inspection device, comprising a base, the base upper end is equipped with workbench, the workbench upper end front side equidistance is fixed with a plurality of placement table, the workbench upper end rear side is fixed with fixed plate;

[0009] It further includes overturning structure, the overturning structure is arranged at the base and workbench junction, for overturning workbench;

[0010] Inspection structure, the inspection structure is arranged on the fixed plate upper end, for detecting whether soft package battery tab is false welding and fixing soft package battery tab.

[0011] On the basis of the above technical scheme, the utility model further provides the following optional technical scheme:

[0012] Preferably, the overturning structure includes a motor one installed on the right side of the base, the base output end extends to the inside of the base and is fixedly connected with a fixed lug, and the fixed lug is fixedly installed at the middle of the bottom end of the workbench.

[0013] Preferably, the test structure comprises a plurality of fixed blocks and support tables, the plurality of fixed blocks and support tables are equidistantly arranged on the upper end of the fixed plate, each of the fixed blocks and support tables corresponds to a placement table position, the support table is fixed at the front end of the fixed block, the upper end of the support table is provided with a rubber cushion, the front end of the fixed block is provided with a sliding groove, the lifting block is slidably arranged in the sliding groove, the detection piece is fixed at the front end of the lifting block, the upper end of the fixed block is provided with a second motor, the output end of the second motor extends into the sliding groove and is fixedly connected with a screw rod, and the screw rod is threadedly connected with the lifting block.

[0014] Preferably, the detection piece comprises a detection plate fixed at the front end of the lifting block, the bottom end of the detection plate is respectively arranged on the negative electrode detection conductive plate and the positive electrode detection conductive plate, the negative electrode detection conductive plate is connected with the diode through a negative electrode connecting line, the positive electrode detection conductive plate is connected with the diode through a positive electrode connecting line, and the diode is arranged on the upper end of the detection plate.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1、 the utility model discloses a test structure and overturning structure cooperate, and the negative electrode detection conductive plate and the positive electrode detection conductive plate of detection piece are closely contacted with the negative electrode and the positive electrode lug of soft package battery, when the lug is welded well, forms closed circuit, and diode is bright, in the contrary, then diode is not bright, if the lug exists virtual welding, and the battery will fall off in the following overturning process due to gravity, thereby directly showing the welding problem. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structural schematic diagram of the utility model.

[0018] Figure 2 It is the structural schematic diagram of the front position of the utility model.

[0019] Figure 3 It is the structural schematic diagram of the test structure of the utility model.

[0020] Figure 4 It is the structural schematic diagram of the detection plate of the utility model.

[0021] Marked for annotation: 1, base; 2, workbench; 201, placing table; 202, fixed plate; 3, turnover structure; 301, motor one; 302, fixed lug; 4, inspection structure; 401, fixed block; 402, support table; 403, rubber cushion; 404, sliding groove; 405, lifting block; 406, motor two; 407, screw; 408, detection piece; 4081, positive detection conductive plate; 4082, positive connection line; 4083, negative detection conductive plate; 4084, negative connection line; 4085, diode; 4086, detection plate. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the utility model more clear, the following will be further described in detail in conjunction with the drawings and examples.

[0023] In one embodiment, as shown in Figures 1-4 A virtual welding inspection device, comprising a base 1, the upper end of the base 1 is provided with a workbench 2, a plurality of placing tables 201 are fixed equidistantly on the front side of the upper end of the workbench 2, and a fixed plate 202 is fixed on the rear side of the upper end of the workbench 2;

[0024] It also includes a turnover structure 3, which is arranged at the connection between the base 1 and the workbench 2, and is used for overturning the workbench 2;

[0025] An inspection structure 4 is arranged on the upper end of the fixed plate 202, which is used for detecting whether the soft package battery tab is virtual welding and fixing the soft package battery tab.

[0026] In this embodiment, first, the soft package battery to be detected is placed on the placing table 201, then the soft package battery tab part is placed on the inspection structure 4, the inspection structure 4 is used to detect whether the soft package battery tab is virtual welding, then the workbench 2 is overturned by the turnover structure 3, so as to overturn the soft package battery, if the soft package battery tab part exists virtual welding, the soft package battery will fall due to its own gravity, so as to judge whether the soft package battery tab part exists virtual welding.

[0027] In an optional embodiment, the turnover structure 3 includes a motor one 301 installed on the right side of the base 1, the output end of the base 1 extends to the inside of the base 1 and is fixedly connected with a fixed lug 302, and the fixed lug 302 is fixedly installed at the middle part of the bottom end of the workbench 2.

[0028] It should be noted that the rotation of the motor 301 can drive the workbench 2 to overturn, and then overturn the soft package battery. If the soft package battery tab part exists virtual welding problem, the battery will fall due to its own gravity, and then it is judged whether the soft package battery tab part exists virtual welding.

[0029] In an optional embodiment, the inspection structure 4 comprises a plurality of fixed blocks 401 and support tables 402, the plurality of fixed blocks 401 and support tables 402 are equidistantly mounted on the upper end of the fixed plate 202, each of the fixed blocks 401 and support tables 402 corresponds to the position of a placement table 201, the support table 402 is fixed at the front end of the fixed block 401, the upper end of the support table 402 is provided with a rubber cushion 403, the front end of the fixed block 401 is provided with a sliding groove 404, the sliding groove 404 is slidably mounted with a lifting block 405, the front end of the lifting block 405 is fixed with a detection piece 408, the upper end of the fixed block 401 is mounted with a motor two 406, the output end of the motor two 406 extends to the inside of the sliding groove 404 and is fixedly connected with a screw rod 407, and the screw rod 407 is threadedly connected with the lifting block 405.

[0030] It should be noted that the rotation of the motor two 406 can drive the lifting block 405 to move up and down in the sliding groove 404, so as to adjust the height of the detection piece 408, and then fix the tab part of the soft-pack battery. By setting the rubber cushion 403, the damage of the tab caused by excessive clamping force is prevented.

[0031] In an optional embodiment, the detection piece 408 comprises a detection plate 4086 fixed at the front end of the lifting block 405, the bottom end of the detection plate 4086 is respectively mounted with a negative electrode detection conductive plate 4083 and a positive electrode detection conductive plate 4081, the negative electrode detection conductive plate 4083 is connected with a diode 4085 through a negative electrode connecting line 4084, the positive electrode detection conductive plate 4081 is connected with the diode 4085 through a positive electrode connecting line 4082, and the diode 4085 is mounted on the upper end of the detection plate 4086.

[0032] It should be noted that the bottom end of the detection plate 4086 is respectively provided with the negative electrode detection conductive plate 4083 and the positive electrode detection conductive plate 4081. The two conductive plates are respectively in contact with the negative and positive tabs of the soft-pack battery. The negative electrode detection conductive plate 4083 is connected with the diode 4085 through the negative electrode connecting line 4084, and the positive electrode detection conductive plate 4081 is connected with the diode 4085 through the positive electrode connecting line 4082. The diode 4085 is mounted on the upper end of the detection plate 4086 and is used to display the detection result. When the detection piece 408 is in contact with the tab of the soft-pack battery, if the tab is well welded, a closed circuit is formed, and the diode 4085 will light up. If the tab is poorly welded, the circuit cannot be closed, and the diode 4085 will not light up, so that whether the tab part of the soft-pack battery is poorly welded can be judged.

[0033] The above embodiment discloses a false welding detection device, wherein the soft package battery to be detected is placed on the placement table 201 of the workbench 2 at the upper end of the base 1. The tab part of the soft package battery is placed on the rubber soft pad 403 of the support table 402, the lifting block 405 in the detection structure 4 is adjusted, the screw rod 407 is driven to rotate by the motor 2 406, the lifting block 405 moves up and down in the sliding groove 404, until the negative detection conductive plate 4083 and the positive detection conductive plate 4081 of the detection piece 408 are in close contact with the negative and positive tabs of the soft package battery. When the detection piece 408 is in contact with the tab of the soft package battery, if the tab is welded well, a closed circuit will be formed. At this time, the negative detection conductive plate 4083 is connected to the diode 4085 through the negative connection line 4084, and the positive detection conductive plate 4081 is connected to the diode 4085 through the positive connection line 4082, forming a complete circuit. The diode 4085 will light up, indicating that the tab welding of the soft package battery is normal. If the tab is false, the circuit cannot be closed. At this time, the diode 4085 will not light up, indicating that the tab part of the soft package battery may have a false welding problem.

[0034] After preliminary detection, in order to further confirm whether the tab has false welding, the workbench 2 can be turned over by the turnover structure 3. The turnover structure 3 is driven by the motor 1 301, and is connected to the bottom end of the workbench 2 through the fixed lug 302. The rotation of the motor 1 301 can drive the workbench 2 to turn over. If the tab part of the soft package battery has a false welding problem, the battery will fall off due to its own gravity. At this time, it can be directly judged whether the tab part of the soft package battery has false welding. Combined with the lighting of the diode 4085 and the falling of the soft package battery after turning over, it can be comprehensively judged whether the tab part of the soft package battery has a false welding problem. If the diode lights up and the battery does not fall off, the tab welding is normal; if the diode does not light up or the battery falls off, the tab has a false welding problem.

[0035] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A device for inspecting for poor solder joints, characterized in that, Includes a base (1), the upper end of which is provided with a workbench (2), a plurality of placement platforms (201) are fixed at equal intervals on the front side of the upper end of the workbench (2), and a fixing plate (202) is fixed on the rear side of the upper end of the workbench (2); It also includes a flipping structure (3), which is set at the connection between the base (1) and the worktable (2) for flipping the worktable (2); Inspection structure (4) is set on the upper end of the fixing plate (202) to detect whether the soft pack battery tabs are poorly soldered and to fix the soft pack battery tabs.

2. The device for inspecting for poor welds according to claim 1, characterized in that, The flipping structure (3) includes a motor (301) installed on the right side of the base (1), and the output end of the base (1) extends into the base (1) and is fixedly connected to a fixing ear (302). The fixing ear (302) is fixedly installed in the middle of the bottom end of the workbench (2).

3. The device for inspecting for poor solder joints according to claim 1, characterized in that, The inspection structure (4) includes several fixing blocks (401) and support platforms (402). The fixing blocks (401) and support platforms (402) are equidistantly installed on the upper end of the fixing plate (202). Each fixing block (401) and support platform (402) corresponds to a placement platform (201). The support platform (402) is fixed to the front end of the fixing block (401), and a rubber pad (403) is provided on the upper end of the support platform (402). The fixed block (401) has a sliding groove (404) at its front end. A lifting block (405) is slidably installed inside the sliding groove (404). A detection element (408) is fixed at the front end of the lifting block (405). A second motor (406) is installed on the upper end of the fixed block (401). The output end of the second motor (406) extends into the sliding groove (404) and is fixedly connected to a screw (407). The screw (407) is threadedly connected to the lifting block (405).

4. The device for inspecting for poor solder joints according to claim 3, characterized in that, The detection component (408) includes a detection plate (4086) fixed to the front end of the lifting block (405). The bottom left and right sides of the detection plate (4086) are respectively installed on the negative detection conductive plate (4083) and the positive detection conductive plate (4081). The negative detection conductive plate (4083) is connected to the diode (4085) through the negative connection line (4084). The positive detection conductive plate (4081) is connected to the diode (4085) through the positive connection line (4082). The diode (4085) is installed on the upper end of the detection plate (4086).

Images