Battery welding defect detection equipment

Abstract

Battery welding defect detection equipment comprises a base, a sliding seat is fixedly connected to the middle of the front side wall of the base, a shell is slidably connected to the sliding seat, a clamping assembly is arranged in the shell, a supporting plate is fixedly connected to the upper portion of the front side wall of the base, an abutting assembly is arranged on the supporting plate, and fixing seats are fixedly connected to the lower portion of the front side wall of the base. A detection seat is fixedly connected to the front side wall of the fixed seat, a connecting seat is fixedly connected to the upper side wall of the detection seat, and a detection head is detachably connected to the interior of the connecting seat through a quick replacement assembly. Compared with the prior art, the utility model has the advantages that through the detachable design of the connecting seat and the detection head, different detection heads can be replaced according to the models of the batteries when the batteries of different models are detected, the applicability is higher, and through the arrangement of the rapid replacement assembly, the replacement process of the detection head is convenient, rapid and more practical.

Description

Technical Field

[0001] The utility model relates to the technical field of battery detection equipment, in particular to a battery welding defect detection device. Background Art

[0002] Laser welding is usually required during the battery production process. Laser welding may penetrate the shell, resulting in a small hole at the bottom of the battery shell. The presence of this small hole is fatal to the battery, so the battery needs to be inspected before leaving the factory to eliminate defective products with the above-mentioned welding defects.

[0003] After searching, a Chinese patent with the announcement number CN219015526U discloses a battery welding defect detection device, including: a detection base, having a detection cavity, a detection port formed on one side of the detection cavity, the detection base is provided with an air inlet channel connected to the detection cavity, the air inlet channel can be opened or closed, and the detection gas can be injected into the detection cavity through the air inlet channel; a pressure sensor is installed on the detection base, the pressure sensor has a detection end extending into the detection cavity, so that the pressure sensor can detect the air pressure inside the detection cavity; and a pressing mechanism, which can hold the battery to be tested against the edge of the detection port and make the tested part of the battery to be tested seal the detection port.

[0004] The above-mentioned prior art solutions have the following deficiencies: batteries of different models have different sizes. Since the sealing ring on the detection base is fixed in position, only one model of battery can be tested for sealing. If the battery is too small, the sealing ring will not be able to perform the sealing function, and the applicability is low. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the prior art, the utility model provides a battery welding defect detection device to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above-mentioned purpose of the utility model, the technical solution adopted by the utility model is a battery welding defect detection device, including a base, a sliding seat is fixedly connected to the middle part of the front side wall of the base, a shell is slidably connected to the sliding seat, a clamping assembly is provided in the shell, a support plate is fixedly connected to the upper part of the front side wall of the base, a tightening assembly is provided on the support plate, a fixing seat is fixedly connected to the upper and lower parts of the front side wall of the base, a detection seat is fixedly connected to the front side wall of the fixing seat, a connecting seat is fixedly connected to the upper side wall of the detection seat, and a detection head is detachably connected to the connecting seat through a quick replacement assembly.

[0007] As an improvement: the clamping assembly includes a motor, a bidirectional screw, a moving block, and a clamping block. The motor is installed on the outer wall of one side of the shell, the output shaft end of the motor extends into the shell and is fixedly connected to the bidirectional screw, the other end of the bidirectional screw is rotatably connected to the inner wall of the other side of the shell, and two symmetrically distributed moving blocks are threadedly sleeved on the bidirectional screw. The moving block is slidably arranged in the shell, and the clamping block is fixedly connected to the front side wall of the moving block.

[0008] As an improvement: the quick-change assembly includes a groove, a slide groove, a limit block, a connecting rod, a pull ring, a return spring and a buckle. Two symmetrically distributed grooves are provided on the lower inner wall of the connecting seat, and a slide groove is provided on the side wall of the two grooves away from each other. A limit block is slidably provided in the slide groove, and a connecting rod is fixedly connected to the side wall of the limit block away from the groove. The other end of the connecting rod passes through the slide groove and extends to the outside of the connecting seat and is fixedly connected with a pull ring. A return spring is provided between the limit block and the side wall of the slide groove away from the groove. The return spring is sleeved on the connecting rod, and the bottom end of the detection head is fixedly connected with two buckles matching the limit block.

[0009] As an improvement: the clamping assembly includes a cylinder, a lower pressure plate, a pressure plate, a guide rod and a pressure spring, a cylinder is installed on the upper side wall of the support plate, the telescopic end of the cylinder passes through the support plate and is fixedly connected to the lower pressure plate, a pressure plate is provided below the lower pressure plate, guide rods are respectively fixedly connected on both sides of the upper side wall of the pressure plate, the upper end of the guide rod passes through the lower pressure plate and the support plate and extends to the top of the support plate, a pressure spring is sleeved on the outer side of the guide rod, one end of the pressure spring is fixedly connected to the lower pressure plate and the other end is fixedly connected to the pressure plate.

[0010] As an improvement: a first sealing groove is provided on the lower inner wall of the connecting seat, and a first sealing ring is provided in the first sealing groove.

[0011] As an improvement: a second sealing groove is provided at the upper end of the detection head, and a second sealing ring is provided in the second sealing groove.

[0012] As an improvement: the lower side wall of the detection seat is connected with an air intake pipe, and a solenoid valve is installed on the air intake pipe.

[0013] As an improvement: a pressure sensor is installed on the detection seat.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The detachable design of the connection base and the detection head allows different detection heads to be replaced according to the battery models when testing different types of batteries, which has higher applicability. The setting of quick replacement components makes the replacement process of the detection head convenient, fast and more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a battery welding defect detection device of the utility model;

[0017] Figure 2 This is a schematic diagram of the shell structure of a battery welding defect detection device of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of a detection head of a battery welding defect detection device of the utility model;

[0019] Figure 4 This is a cross-sectional view of a connection seat of a battery welding defect detection device of the utility model;

[0020] Figure 5 This is an enlarged view of point A of a battery welding defect detection device of the utility model;

[0021] Figure 6 This is a schematic diagram of the structure of a clamping component of a battery welding defect detection device of the utility model;

[0022] As shown in the figure:

[0023] 1. Base; 1.1. Slide; 1.2. Shell; 2. Clamping assembly; 1.3. Support plate; 4. Tightening assembly; 1.4. Fixed seat; 1.5. Detection seat; 1.6. Connecting seat; 3. Quick-change assembly; 1.7. Detection head; 2.1. Motor; 2.2. Bidirectional screw; 2.3. Moving block; 2.4. Clamping block; 3.1. Groove; 3.2. Slide; 3.3. Limit block; 3.4. Connecting rod; 3.5. Pull ring; 3.6. Reset spring; 1.71. Buckle; 4.1. Cylinder; 4.2. Lower pressure plate; 4.3. Butt plate; 4.4. Guide rod; 4.5. Tightening spring; 1.61. First sealing groove; 1.72. Second sealing groove; 1.8. Inlet pipe; 1.81. Solenoid valve; 1.51. Pressure sensor. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features and purpose effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both sides", "one side", "the other side" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the 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 operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] like Figure 1 As shown, a battery welding defect detection device includes a base 1, a slide 1.1 is fixedly connected to the middle part of the front side wall of the base 1, a shell 1.2 is slidably connected to the slide 1.1, a clamping component 2 is arranged in the shell 1.2, a support plate 1.3 is fixedly connected to the upper part of the front side wall of the base 1, a tightening component 4 is arranged on the support plate 1.3, a fixing seat 1.4 is fixedly connected to the upper and lower parts of the front side wall of the base 1, a detection seat 1.5 is fixedly connected to the front side wall of the fixing seat 1.4, a connecting seat 1.6 is fixedly connected to the upper side wall of the detection seat 1.5, a detection head 1.7 is detachably connected to the connecting seat 1.6 through a quick replacement component 3, and the detachable design of the connecting seat 1.6 and the detection head 1.7 makes it possible to replace different detection heads 1.7 according to the battery model when detecting batteries of different models, which has higher applicability.

[0028] Specifically, Figure 2As shown, a battery welding defect detection device, the clamping assembly 2 includes a motor 2.1, a bidirectional screw 2.2, a moving block 2.3, and a clamping block 2.4. The motor 2.1 is installed on the outer wall of one side of the shell 1.2, the output shaft end of the motor 2.1 extends into the shell 1.2 and is fixedly connected with the bidirectional screw 2.2, the other end of the bidirectional screw 2.2 is rotatably connected to the inner wall of the other side of the shell 1.2, the bidirectional screw 2.2 is threadedly sleeved with two symmetrically distributed moving blocks 2.3, the moving blocks 2.3 are slidably arranged in the shell 1.2, the front side wall of the moving block 2.3 is fixedly connected with the clamping block 2.4, the handheld battery is placed between the two clamping blocks 2.4, the output shaft of the motor 2.1 can drive the bidirectional screw 2.2 to rotate, and when the bidirectional screw 2.2 rotates, the two moving blocks 2.3 threadedly connected thereto can drive the clamping blocks 2.4 to approach each other, and during the approaching process, the two clamping blocks 2.4 will clamp and fix the battery, which is suitable for batteries of different sizes.

[0029] Specifically, Figures 3 to 5 As shown, a battery welding defect detection device, the quick replacement component 3 includes a groove 3.1, a slide groove 3.2, a limit block 3.3, a connecting rod 3.4, a pull ring 3.5, a reset spring 3.6 and a buckle 1.71, two symmetrically distributed grooves 3.1 are provided on the lower inner wall of the connecting seat 1.6, and a slide groove 3.2 is provided on one side wall away from each other of the two grooves 3.1, and a limit block 3.3 is provided in the slide groove 3.2, and the limit block 3.3 is away from the groove 3.1. A connecting rod 3.4 is fixedly connected to one side wall of the detection head 1.7. The other end of the connecting rod 3.4 passes through the slide groove 3.2 and extends to the outside of the connecting seat 1.6 and is fixedly connected to a pull ring 3.5. A reset spring 3.6 is provided between the limit block 3.3 and the side wall of the slide groove 3.2 away from the groove 3.1. The reset spring 3.6 is sleeved on the connecting rod 3.4. The bottom end of the detection head 1.7 is fixedly connected to two buckles 1.71 that match the limit block 3.3. When the battery model to be detected changes, When the detection head 1.7 is installed, the bottom of the detection head 1.7 is inserted into the connecting seat 1.6 with a little force, and the buckle 1.71 enters the groove 3.1 and squeezes the limit block 3.3. After being squeezed, the limit block 3.3 moves into the slide groove 3.2, and the reset spring 1.71 is pressed. The spring 3.6 will be compressed. When the buckle 1.71 is fully inserted into the groove 3.1, the limit block 3.3 loses the extrusion force and enters the groove 3.1 under the push of the reset spring 3.6. The buckle 1.71 is fixed in the groove 3.1, and the replacement of the detection head 1.7 can be completed. The replacement method is convenient, fast and more practical. Different detection heads 1.7 have the same shape and size, and only the position and size of the second sealing groove 1.72 at the upper end are different, so as to be suitable for batteries of different models.

[0030] Specifically, Figure 6 As shown, a battery welding defect detection device, the tightening assembly 4 includes a cylinder 4.1, a lower pressure plate 4.2, a pressing plate 4.3, a guide rod 4.4 and a tightening spring 4.5, the cylinder 4.1 is installed on the upper side wall of the support plate 1.3, the telescopic end of the cylinder 4.1 passes through the support plate 1.3 and is fixedly connected to the lower pressure plate 4.2, the lower part of the lower pressure plate 4.2 is provided with a pressing plate 4.3, the upper side wall of the pressing plate 4.3 is respectively fixedly connected with guide rods 4.4, the upper end of the guide rod 4.4 passes through the lower pressure plate 4.2 and the support plate 1.3 and extends to the top of the support plate 1.3, the guide rod 4.4 A tightening spring 4.5 is sleeved on the outer side, one end of the tightening spring 4.5 is fixedly connected to the lower pressure plate 4.2 and the other end is fixedly connected to the abutment plate 4.3. The telescopic end of the cylinder 4.1 can push the lower pressure plate 4.2 downward, and the abutment plate 4.3 contacts the upper end of the battery and pushes the battery and the shell 1.2 downward together, so that the lower end of the battery contacts the detection head 1.7. The lower pressure plate 4.2 continues to press downward, and the tightening spring 4.5 will be compressed under the resistance of the battery, and under the reverse push of the tightening spring 4.5, the battery and the detection head 1.7 are pressed tightly, and the abutment plate 4.3 is in flexible contact with the battery to avoid damage to the battery.

[0031] Specifically, Figure 4 As shown, a battery welding defect detection device is provided, a first sealing groove 1.61 is opened on the lower inner wall of the connecting seat 1.6, a first sealing ring is arranged in the first sealing groove 1.61, and the first sealing groove 1.61 cooperates with the first sealing ring to ensure the sealing between the connecting seat 1.6 and the detection head 1.7.

[0032] Specifically, Figure 3 As shown, a battery welding defect detection device is provided, wherein a second sealing groove 1.72 is provided at the upper end of the detection head 1.7, and a second sealing ring is provided in the second sealing groove 1.72. The second sealing groove 1.72 and the second sealing ring can ensure the sealing between the detection head 1.7 and the bottom end of the battery.

[0033] Specifically, Figure 1 As shown, a battery welding defect detection device, the lower side wall of the detection seat 1.5 is connected to an air intake pipe 1.8, and an electromagnetic valve 1.81 is installed on the air intake pipe 1.8. The detection gas enters the detection seat 1.5 through the air intake pipe 1.8, and the electromagnetic valve 1.81 can control the on-off of the air intake pipe 1.8.

[0034] Specifically, Figure 1 As shown, a battery welding defect detection device is provided, wherein a pressure sensor 1.51 is installed on the detection seat 1.5 to monitor the air pressure change in the detection seat 1.5.

[0035] When the utility model is implemented, the handheld battery is placed between the two clamping blocks 2.4, and the output shaft of the motor 2.1 can drive the bidirectional screw 2.2 to rotate. When the bidirectional screw 2.2 rotates, the two moving blocks 2.3 threadedly connected thereto can drive the clamping blocks 2.4 to approach each other. During the approaching process, the two clamping blocks 2.4 will clamp and fix the battery, and then the telescopic end of the cylinder 4.1 pushes the lower pressure plate 4.2 to move downward, and the abutment plate 4.3 contacts the upper end of the battery and pushes the battery and the housing 1.2 to move downward together, so that the lower end of the battery contacts the detection head 1.7, and the lower pressure plate 4.2 continues to press down. Under the resistance of the battery, the pressing spring 4.5 will be compressed, and under the reverse push of the pressing spring 4.5, the battery and the detection head 1.7 are pressed tightly, and the pressing plate 4.3 is in flexible contact with the battery to avoid damage to the battery. The second sealing groove 1.72 cooperates with the second sealing ring to ensure the sealing between the battery and the detection head 1.7. Then the detection gas enters the detection seat 1.5 through the air inlet pipe 1.8. After the air pressure in the detection seat 1.5 reaches the preset value, the solenoid valve 1.81 is closed, so that a closed cavity is formed in the detection seat 1.5. By observing the pressure The value transmitted by the force sensor 1.51 is used to determine whether there is a leak. If there is a leak, the value will change. If there is no leak, the value will not change. When the model of the battery to be detected changes, pull the pull ring 3.5 to make the connecting rod 3.5 drive the limit block 3.3 to retract into the slide groove 3.2. After the limit of the limit block 3.3 is lost, the detection head 1.7 can be pulled out from the connecting seat 1.6. When installing the detection head 1.7 of the corresponding model, insert the bottom of the detection head 1.7 into the connecting seat 1.6 with a little force, and the buckle 1.71 will enter the groove 3.1 and squeeze the limit block 3.3, the limit block 3.3 will move into the slide groove 3.2 after being squeezed, and the reset spring 3.6 will be compressed at this time. When the buckle 1.71 is fully inserted into the groove 3.1, the limit block 3.3 loses the squeezing force and enters the groove 3.1 under the push of the reset spring 3.6, and the buckle 1.71 is fixed in the groove 3.1, and the replacement of the detection head 1.7 can be completed. The replacement method is convenient, fast and more practical. Different detection heads 1.7 have the same shape and size, and only the position and size of the second sealing groove 1.72 at the upper end are different, so as to be suitable for batteries of different models.

[0036] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A battery welding defect detection device, comprising a base (1), characterized in that: A slide seat (1.1) is fixedly connected to the middle of the front side wall of the base (1), a shell (1.2) is slidably connected to the slide seat (1.1), a clamping assembly (2) is arranged in the shell (1.2), a support plate (1.3) is fixedly connected to the top of the front side wall of the base (1), a tightening assembly (4) is arranged on the support plate (1.3), a fixing seat (1.4) is fixedly connected to the top and bottom of the front side wall of the base (1), a detection seat (1.5) is fixedly connected to the front side wall of the fixing seat (1.4), a connecting seat (1.6) is fixedly connected to the upper side wall of the detection seat (1.5), and a detection head (1.7) is detachably connected to the connecting seat (1.6) via a quick replacement assembly (3).

2. A battery welding defect detection device according to claim 1, characterized in that: The clamping assembly (2) comprises a motor (2.1), a bidirectional screw (2.2), a moving block (2.3), and a clamping block (2.4); the motor (2.1) is mounted on an outer wall of one side of the housing (1.2); the output shaft end of the motor (2.1) extends into the housing (1.2) and is fixedly connected to the bidirectional screw (2.2); the other end of the bidirectional screw (2.2) is rotatably connected to the inner wall of the other side of the housing (1.2); two symmetrically distributed moving blocks (2.3) are threadedly sleeved on the bidirectional screw (2.2); the moving blocks (2.3) are slidably arranged in the housing (1.2); and the clamping block (2.4) is fixedly connected to the front side wall of the moving block (2.3).

3. A battery welding defect detection device according to claim 1, characterized in that: The quick-change assembly (3) comprises a groove (3.1), a slide groove (3.2), a limit block (3.3), a connecting rod (3.4), a pull ring (3.5), a reset spring (3.6) and a buckle (1.71); two grooves (3.1) are symmetrically arranged on the lower inner wall of the connecting seat (1.6); a slide groove (3.2) is arranged on one side wall of the two grooves (3.1) away from each other; a limit block (3.3) is slidably arranged in the slide groove (3.2); the limit block (3.3) is away from the groove (3. A connecting rod (3.4) is fixedly connected to one side wall of the connecting seat (1.6), the other end of the connecting rod (3.4) passes through the slide groove (3.2) and extends to the outside of the connecting seat (1.6) and is fixedly connected to a pull ring (3.5), a reset spring (3.6) is provided between the limit block (3.3) and the side wall of the slide groove (3.2) away from the groove (3.1), and the reset spring (3.6) is sleeved on the connecting rod (3.4), and the bottom end of the detection head (1.7) is fixedly connected to two buckles (1.71) matched with the limit block (3.3).

4. A battery welding defect detection device according to claim 1, characterized in that: The clamping assembly (4) comprises a cylinder (4.1), a lower pressure plate (4.2), a clamping plate (4.3), a guide rod (4.4) and a clamping spring (4.5). The cylinder (4.1) is installed on the upper side wall of the support plate (1.3). The telescopic end of the cylinder (4.1) passes through the support plate (1.3) and is fixedly connected to the lower pressure plate (4.2). A clamping plate (4.3) is provided below the lower pressure plate (4.2). Guide rods (4.4) are fixedly connected to both sides of the upper side wall of the clamping plate (4.3). The upper end of the guide rod (4.4) passes through the lower pressure plate (4.2) and the support plate (1.3) and extends to the top of the support plate (1.3). A clamping spring (4.5) is sleeved on the outer side of the guide rod (4.4). One end of the clamping spring (4.5) is fixedly connected to the lower pressure plate (4.2) and the other end is fixedly connected to the clamping plate (4.3).

5. A battery welding defect detection device according to claim 1, characterized in that: A first sealing groove (1.61) is provided on the lower inner wall of the connecting seat (1.6), and a first sealing ring is provided in the first sealing groove (1.61).

6. A battery welding defect detection device according to claim 1, characterized in that: A second sealing groove (1.72) is provided at the upper end of the detection head (1.7), and a second sealing ring is provided in the second sealing groove (1.72).

7. A battery welding defect detection device according to claim 1, characterized in that: The lower side wall of the detection seat (1.5) is connected to an air intake pipe (1.8), and an electromagnetic valve (1.81) is installed on the air intake pipe (1.8).

8. The battery welding defect detection device according to claim 1, characterized in that: A pressure sensor (1.51) is installed on the detection seat (1.5).

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