Stamping die detection device of electric bicycle battery box

Abstract

The invention belongs to the technical field of die detection, and particularly relates to a stamping die detection device for an electric bicycle battery box, which comprises a supporting seat and a controller arranged on one side of the supporting seat, and further comprises a stamping sound wave detection unit mounted on the side wall of the supporting seat, the stamping sound wave detection unit is used for detecting stamping sound of the stamping die; the stamping vibration detection unit is installed on the side wall of the supporting base and used for detecting stamping vibration of the stamping die. And the mounting seat is arranged above the supporting seat. Through multiple online detection of sound wave detection, vibration detection and scrap quantity detection and matching with automatic visual reinspection, die abrasion, chipping and other abnormalities can be accurately captured in real time, damage can be timely positioned and early warned, meanwhile, scraps are prevented from influencing the stamping precision and the product appearance, the defective product rate is effectively reduced, the production efficiency is improved, and the production cost is reduced. And the stability of the battery box stamping quality is guaranteed.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of mold detection, and particularly relates to a stamping mold detection device for an electric bicycle battery box. BACKGROUND

[0002] The production of the electric bicycle battery box depends on the stamping mold, and the precision of the stamping mold directly determines the product quality. However, the mold will be worn, deformed or even damaged in long-term use, resulting in product size deviation and surface defects, and even production accidents in serious cases. Therefore, it is crucial to regularly detect the mold to ensure production stability and product consistency.

[0003] Currently, when detecting the stamping mold, an image information of the stamping mold is usually taken by using a visual camera, and the image information is compared with a standard image to determine the wear condition of the mold, such as the stamping mold detection device disclosed in patent publication No. CN120901117A. However, the interval time for detecting the mold is usually determined according to the stamping amount of the battery box and the material of the battery box, for example, the mold is detected once every 5000 aluminum alloy battery boxes or 2000 steel battery boxes. However, due to the influence of random factors such as material batch difference, lubrication condition and stamping process parameter fluctuation, the wear of the mold is not the same every time the battery box is stamped. Therefore, the regular detection method may cause batch of defective products due to untimely detection. SUMMARY

[0004] The purpose of the present application is to provide a stamping mold detection device for an electric bicycle battery box.

[0005] To achieve the above purpose, the present application adopts the following technical scheme: a stamping mold detection device for an electric bicycle battery box, comprising a support seat and a controller arranged on one side of the support seat, further comprising:

[0006] a stamping sound detection unit installed on the side wall of the support seat, and the stamping sound detection unit is used for detecting the stamping sound of the stamping mold;

[0007] a stamping vibration detection unit installed on the side wall of the support seat, and the stamping vibration detection unit is used for detecting the stamping vibration of the stamping mold;

[0008] a mounting seat arranged above the support seat, a shooting camera is fixed on the top of the mounting seat, and a driving unit for driving the movement of the mounting seat is installed on the side wall of the support seat;

[0009] a stamping waste detection unit connected with the driving unit, and the stamping waste detection unit is used for detecting the waste generated by stamping.

[0010] Preferably, the stamping acoustic wave detection unit includes a soundproof cover fixed to the side wall of the support base, an acoustic wave detector electrically connected to the controller is fixed inside the soundproof cover, a sound insulation cotton pad is fixed at the end of the soundproof cover away from the support base, and the soundproof cover abuts against the fixed mold side wall of the stamping die through the sound insulation cotton pad.

[0011] Preferably, the stamping vibration detection unit includes a U-shaped block fixed to the side wall of the support base, a T-shaped rod rotatably connected inside the U-shaped block, and a rubber ball fixed at the bottom of the T-shaped rod. The rubber ball contacts the fixed mold side wall of the stamping die. An encoder electrically connected to the controller is fixed to the side wall of the U-shaped block, and the rotating end of the encoder is drively connected to the rotating end of the T-shaped rod.

[0012] Preferably, the drive unit includes a support plate fixed to the side wall of the support base, a vertical push hydraulic cylinder is fixedly inserted into the support plate, and an L-shaped plate is fixed to the movable end of the vertical push hydraulic cylinder. A horizontal push hydraulic cylinder is fixedly inserted into the vertical side wall of the L-shaped plate. A tilting assembly is installed on the movable end of the horizontal push hydraulic cylinder. The mounting base is installed on the drive end of the tilting assembly. Both the vertical push hydraulic cylinder and the horizontal push hydraulic cylinder are electrically connected to the controller.

[0013] Preferably, the flipping assembly includes a fixed frame fixed to the movable end of the horizontal thrust hydraulic cylinder, a flipping motor fixed to the side wall of the fixed frame, a mounting base fixed to the drive end of the flipping motor, and the flipping motor electrically connected to the controller.

[0014] Preferably, the stamping waste detection unit includes a sealed hopper fixed to the bottom of the mounting base, a dust collection hopper fixedly connected to the side wall of the sealed hopper, a dust collection hose fixedly connected to the dust collection hopper, a through hole connected to the dust collection hose on the end face of the support plate, a square tube connected to the through hole fixed to the bottom of the support plate, a gas turbidity detector installed on the wall of the square tube, a negative pressure dust collection mechanism installed at the bottom of the support plate and connected to the square tube, and the gas turbidity detector electrically connected to the controller.

[0015] Preferably, the negative pressure dust collection mechanism includes a dust collection box fixed to the bottom of the support plate, the square tube is disposed inside the dust collection box, an air pump is fixed to the side wall of the dust collection box, and the air pump's suction end is connected to the dust collection box, a filter screen is installed inside the dust collection box on the side of the air pump's suction end, and an air blowing assembly is installed at the air pump's outlet end.

[0016] Preferably, the air blowing assembly includes an arc-shaped plate fixed inside the sealed hopper, and the arc-shaped plate is located inside the sealed hopper on the side away from the dust collection hopper. The side wall of the arc-shaped plate is provided with a plurality of air blowing holes. The side wall of the sealed hopper is fixedly connected to a connecting pipe, and an air outlet hose is fixedly connected between the connecting pipe and the air outlet end of the air pump.

[0017] Compared with existing technologies, the advantages of a stamping die inspection device for electric bicycle battery boxes are:

[0018] 1. Through the cooperation of the set support base, controller, and stamping acoustic wave detection unit, the stamping acoustic waves can be detected during the battery box stamping process, and the mold status can be judged based on the difference in stamping acoustic waves. The set stamping vibration detection unit can detect the stamping vibration during the battery box stamping process, and the mold status can be judged based on the stamping vibration. Thus, the mold status can be detected online in real time. In conjunction with the set mounting base, camera, and drive unit, the stamping mold can be quickly inspected, ensuring the timeliness of stamping mold inspection and minimizing the generation of defective products.

[0019] 2. By setting up a stamping waste detection unit, the condition of the stamping die can be judged based on the metal waste generated during stamping. Combined with multiple detection methods such as sound waves and vibrations, the accuracy of online die detection can be further improved from different detection directions.

[0020] 3. The negative pressure dust collection mechanism can clean up the waste that may be generated during stamping in a timely manner during the detection of stamping waste, so as to avoid the waste from affecting the stamping accuracy or causing damage to the surface of the battery box. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural schematic diagram of a stamping die testing device for an electric bicycle battery box provided by the present invention;

[0022] Figure 2 This is a three-dimensional structural diagram of the bottom of the mounting base of the stamping die testing device for an electric bicycle battery box provided by the present invention;

[0023] Figure 3 This is a three-dimensional back view of a stamping die testing device for an electric bicycle battery box provided by the present invention.

[0024] Figure 4 This is a top-view perspective three-dimensional structural diagram of a stamping die testing device for an electric bicycle battery box provided by the present invention;

[0025] Figure 5 This is a schematic diagram of the internal structure of the soundproof cover of the stamping die testing device for an electric bicycle battery box provided by the present invention;

[0026] Figure 6 This is a schematic diagram of the internal structure of the sealing hopper of a stamping die testing device for an electric bicycle battery box provided by the present invention;

[0027] Figure 7This invention provides a stamping die testing device for an electric bicycle battery box. Figure 4 Enlarged view of the structure of section A;

[0028] Figure 8 This is a bottom view of the internal structure of the dust collection box of a stamping die testing device for an electric bicycle battery box provided by the present invention.

[0029] In the diagram: 1 Support base, 2 Controller, 3 Stamping acoustic wave detection unit, 31 Sound insulation cover, 32 Acoustic wave detector, 33 Sound insulation cotton pad, 4 Stamping vibration detection unit, 41 U-shaped block, 42 ​​T-shaped rod, 43 Rubber ball, 44 Encoder, 5 Mounting base, 6 Camera, 7 Drive unit, 71 Support plate, 72 Vertical push hydraulic cylinder, 73 L-shaped plate, 74 Horizontal push hydraulic cylinder, 8 Stamping waste detection unit, 81 Sealing hopper, 82 Dust collection hopper, 83 Dust collection hose, 84 Square tube, 85 Gas turbidity detector, 9 Tilting assembly, 91 Fixing frame, 92 Tilting motor, 10 Negative pressure dust collection mechanism, 101 Dust collection box, 102 Air pump, 103 Filter screen, 11 Air blowing assembly, 111 Arc plate, 112 Air blowing hole, 113 Connecting pipe, 114 Air outlet hose. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0031] like Figures 1-8 As shown, a stamping die detection device for an electric bicycle battery box includes a support base 1 and a controller 2 disposed on one side of the support base 1. It also includes a stamping acoustic wave detection unit 3, which is mounted on the side wall of the support base 1 and is used to detect the stamping sound of the stamping die. The stamping acoustic wave detection unit 3 includes a soundproof cover 31 fixed to the side wall of the support base 1. An acoustic wave detector 32 electrically connected to the controller 2 is fixed inside the soundproof cover 31. A sound-insulating cotton pad 33 is fixed to the end of the soundproof cover 31 away from the support base 1, and the soundproof cover 31 abuts against the fixed mold side wall of the stamping die through the sound-insulating cotton pad 33. The acoustic wave detector 32 converts the collected analog acoustic wave signal into a digital signal and transmits it to the controller 2.

[0032] The stamping vibration detection unit 4 is installed on the side wall of the support base 1, and the stamping vibration detection unit 4 is used to detect the stamping vibration of the stamping die. The stamping vibration detection unit 4 includes a U-shaped block 41 fixed on the side wall of the support base 1. A T-shaped rod 42 is rotatably connected inside the U-shaped block 41, and a rubber ball 43 is fixed at the bottom of the T-shaped rod 42. The rubber ball 43 is in contact with the fixed mold side wall of the stamping die. An encoder 44 electrically connected to the controller 2 is fixed on the side wall of the U-shaped block 41, and the rotating end of the encoder 44 is drivenly connected to the rotating end of the T-shaped rod 42. The rotating end of the encoder 44 rotates synchronously with the rotating end of the T-shaped rod 42. The swing angle and frequency of the T-shaped rod 42 can be determined by the change of the light signal generated by the grating hole on the code disk.

[0033] Mounting base 5 is positioned above support base 1. A camera 6 is fixed to the top of mounting base 5. A drive unit 7 for moving mounting base 5 is mounted on the side wall of support base 1. The drive unit 7 includes a support plate 71 fixed to the side wall of support base 1. A vertical push hydraulic cylinder 72 is fixedly inserted into the support plate 71, and an L-shaped plate 73 is fixed to the movable end of the vertical push hydraulic cylinder 72. A horizontal push hydraulic cylinder 74 is fixedly inserted into the vertical side wall of the L-shaped plate 73, and a flipping component 9 is mounted on the movable end of the horizontal push hydraulic cylinder 74. Mounting base 5 is mounted on the drive end of the flipping component 9. Both the vertical push hydraulic cylinder 72 and the horizontal push hydraulic cylinder 74 are electrically connected to the controller 2. Several vertical guide rods are fixed to the bottom of the L-shaped plate 73, and the guide rods are slidably connected to the support plate 71 to ensure the stability of the L-shaped plate 73 when moving up and down. Several horizontal guide rods are fixed to the side wall of the L-shaped plate 73, and the guide rods are slidably connected to the side wall of mounting base 5 to ensure the stability of mounting base 5 when moving horizontally.

[0034] The flipping assembly 9 includes a fixed frame 91 fixed to the movable end of the horizontal thrust hydraulic cylinder 74. A flipping motor 92 is fixed to the side wall of the fixed frame 91. The mounting base 5 is fixed to the drive end of the flipping motor 92. The flipping motor 92 is electrically connected to the controller 2. The flipping motor 92 can drive the mounting base 5 to flip 90°.

[0035] The stamping waste detection unit 8 is connected to the drive unit 7, and the stamping waste detection unit 8 is used to detect the waste generated by stamping. The stamping waste detection unit 8 includes a sealing hopper 81 fixed to the bottom of the mounting base 5. A dust collection hopper 82 is fixedly connected to the side wall of the sealing hopper 81. A dust collection hose 83 is fixedly connected to the dust collection hopper 82. A through hole connected to the dust collection hose 83 is opened on the end face of the support plate 71. A square tube 84 connected to the through hole is fixed to the bottom of the support plate 71. A gas turbidity detector 85 is installed on the tube wall of the square tube 84. A negative pressure dust collection mechanism 10 is installed at the bottom of the support plate 71, and the negative pressure dust collection mechanism 10 is connected to the square tube 84. The gas turbidity detector 85 is electrically connected to the controller 2. The gas turbidity detector 85 can determine the amount of waste by emitting a light beam and calculating the intensity of the light beam after being blocked by waste.

[0036] The negative pressure dust collection mechanism 10 includes a dust collection box 101 fixed to the bottom of the support plate 71, a square tube 84 disposed inside the dust collection box 101, an air pump 102 fixed to the side wall of the dust collection box 101, and the suction end of the air pump 102 connected to the dust collection box 101. A filter screen 103 is installed inside the dust collection box 101 on the side of the suction end of the air pump 102. An air blowing assembly 11 is installed at the air outlet end of the air pump 102. A discharge port is opened at the bottom of the dust collection box 101, and a detachable bottom cover is installed at the discharge port to facilitate the transfer and disposal of the collected waste.

[0037] The air blowing assembly 11 includes an arc-shaped plate 111 fixed inside the sealed hopper 81, and the arc-shaped plate 111 is located inside the sealed hopper 81 on the side away from the dust collection hopper 82. The side wall of the arc-shaped plate 111 is provided with a plurality of air blowing holes 112. The side wall of the sealed hopper 81 is fixedly connected to a connecting pipe 113, and an air outlet hose 114 is fixedly connected between the connecting pipe 113 and the air outlet end of the air pump 102. The air blowing assembly 11 can supply airflow into the sealed hopper 81. With the help of the negative pressure suction on one side of the dust collection hopper 82, it can assist the waste to enter the dust collection hopper 82.

[0038] The operating principle of the present invention is explained as follows: The support base 1 is installed on the ground, positioned on one side of the battery box stamping mold, and the sound insulation cover 31 abuts against the fixed mold side wall of the stamping mold through the sound insulation cotton pad 33, and the rubber ball 43 contacts the fixed mold side wall of the stamping mold. Then the controller 2 is connected to the external power supply circuit and the controller 2 is started.

[0039] When the stamping die stamps the battery box, the moving die of the stamping die moves down to impact the battery box plate and abuts against the fixed die. The sound waves generated by the stamping are transmitted to the inside of the soundproof cover 31 through the fixed die. The sound wave detector 32 can detect the stamping sound waves. The sound wave detector 32 converts the collected sound wave analog signal into a digital signal and transmits it to the controller 2. The controller 2 compares and analyzes the sound wave signal characteristics detected in real time with the preset standard sound wave characteristic database. When the detected sound wave signal deviates significantly in terms of frequency, amplitude or waveform (the deviation is set according to parameters such as battery box plate and die material), it indicates that the impact energy distribution, contact stiffness or contact state of the stamping die has changed during the stamping process. This is usually due to wear of the moving die edge and wear of the fixed die cavity, which increases the contact area with the plate, reduces the peak impact force, and changes the frictional resistance between the plate and the die. Therefore, the wear and other damage of the moving die can be judged.

[0040] Secondly, the vibration force generated by stamping is transmitted to the rubber ball 43 through the fixed mold, causing it to detach from the fixed mold under vibration. Then, under the action of gravity, it rotates back to contact the fixed mold, and finally swings under the continuous action of vibration. At this time, the rubber ball 43 will drive the T-shaped rod 42 to swing, and the swinging T-shaped rod 42 will drive the rotating shaft of the encoder 44 to rotate. The encoder 44 converts the mechanical swing of the T-shaped rod 42 into an electrical signal and outputs it in the form of a pulse signal. The data processing system will record and analyze the frequency and amplitude changes of the pulse signal and compare it with the standard vibration parameter threshold under normal stamping conditions. When the frequency or amplitude of the pulse signal exceeds the preset threshold range, it indicates that the vibration energy transmitted to the fixed mold during the stamping process has changed. This is usually due to the wear of the moving mold edge, which increases its contact area with the sheet metal, resulting in a decrease in the peak value of the impact force and a longer action time, thereby changing the frequency and amplitude characteristics of the vibration. Or, the mold deformation may cause a change in the contact stiffness, causing the natural frequency of the vibration to shift. Therefore, abnormal conditions such as wear and deformation of the moving mold can be identified.

[0041] After the moving die of the stamping die is completed, the moving die returns to its original position. At this time, the controller 2 controls the horizontal push hydraulic cylinder 74 to work according to the preset program. The horizontal push hydraulic cylinder 74 pushes the mounting base 5 to move above the fixed die of the stamping die through the flipping component 9. Then, the vertical push hydraulic cylinder 72 drives the L-shaped plate 73 to move down, so that the sealing hopper 81 abuts against the top of the fixed die. Then, the controller 2 controls the air pump 102 to work. The air pump 102 delivers gas into the inside of the arc plate 111 through the air outlet hose 114 and the connecting pipe 113. The air is ejected through the air blowhole 112. Simultaneously, when the air pump 102 is operating, its suction end creates negative pressure suction at the dust collection hopper 82 through the square tube 84, through-hole, and suction hose 83. Under the combined effect of the airflow ejected from one side of the arc plate 111 and the negative pressure suction generated on the other side of the dust collection hopper 82, metal scraps generated by stamping friction inside the mold are sucked into the dust collection box 101 along with the airflow. As the airflow passes through the square tube 84, the gas turbidity detector 85 detects the turbidity of the airflow (within the gas turbidity detector 85). The unit includes a laser emitter and a corresponding photosensitive receiver. When the airflow containing metal waste particles passes through the detection cavity of the detector, the stable laser beam emitted by the laser emitter will irradiate these suspended particles. The metal waste particles will block part of the laser. The intensity of the laser is directly related to the concentration and size of the particles. Therefore, the amount of waste in the airflow can be determined by the intensity of the laser received by the photosensitive receiver. When the amount of waste is large, it indicates that the amount of metal waste generated during the stamping process is abnormally increased. This is usually due to severe wear, chipping, or a significant increase in surface roughness of the cutting edge of the moving die or fixed die, which leads to increased friction with the sheet metal during the stamping process and generates excessive metal waste. The air pump 102 stops working after 10 seconds, and the controller 2 controls the drive unit 7 to drive the mounting base 5 to move back to its original position. After each stamping, by sucking the waste inside the fixed die, the waste can be minimized from affecting the stamping quality of the next battery box (waste may cause abnormal bulging deformation or scratches on the side wall of the stamped battery box).

[0042] If all signals from the acoustic detector 32, encoder 44, and gas turbidity detector 85 exceed the threshold, or if two signals exceed the threshold twice consecutively, or if one signal exceeds the threshold three times consecutively, the controller 2 will immediately issue an audible and visual alarm. The battery box stamping process must then be manually paused, and the controller 2 will initiate mold detection. At this time, the controller 2 will follow the aforementioned steps to move the mounting base 5 between the moving and fixed molds of the stamping die. The controller 2 will then activate the camera 6, which will first photograph the stamping surface of the upper moving mold. Then, the controller 2 will control the tilting motor 92 to drive the mounting base 5 to rotate 90°, and the camera 6 will resume operation to photograph the stamping surface of the lower fixed mold. After the image is captured, the controller 2 controls the flip motor 92 to drive the mounting base 5 to rotate, and simultaneously controls the vertical push hydraulic cylinder 72 and the horizontal push hydraulic cylinder 74 to move the mounting base 5 back to its original position. The camera 6 transmits the captured digital image data to the controller 2. The controller 2's built-in vision analysis module processes the image and transmits the processed image information to an external computer. After receiving the image information, the computer compares and analyzes it with a preset standard mold image template to identify key information such as the wear degree of the cutting edge, the location and size of the chip, and the distribution and depth of surface scratches. Based on the analysis results, the computer determines the damage level of the mold and finally displays the analysis report and positioning information on the operation interface to guide maintenance personnel in performing precise mold repair or replacement.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A stamping die testing device for an electric bicycle battery box, comprising a support base (1) and a controller (2) disposed on one side of the support base (1), characterized in that, Also includes: The stamping acoustic wave detection unit (3) is installed on the side wall of the support base (1), and the stamping acoustic wave detection unit (3) is used to detect the stamping sound of the stamping die; A stamping vibration detection unit (4) is installed on the side wall of the support base (1), and the stamping vibration detection unit (4) is used to detect the stamping vibration of the stamping die; Mounting base (5) is located above the support base (1). A camera (6) is fixed on the top of the mounting base (5). A drive unit (7) for driving the mounting base (5) to move is installed on the side wall of the support base (1). The stamping waste detection unit (8) is connected to the drive unit (7) and is used to detect the waste generated by stamping.

2. The stamping die inspection device for an electric bicycle battery box according to claim 1, characterized in that, The stamping acoustic wave detection unit (3) includes a soundproof cover (31) fixed to the side wall of the support base (1). The soundproof cover (31) has an acoustic wave detector (32) electrically connected to the controller (2) fixed inside. The end of the soundproof cover (31) away from the support base (1) is fixed with a soundproof cotton pad (33), and the soundproof cover (31) abuts against the fixed mold side wall of the stamping die through the soundproof cotton pad (33).

3. The stamping die inspection device for an electric bicycle battery box according to claim 1, characterized in that, The stamping vibration detection unit (4) includes a U-shaped block (41) fixed to the side wall of the support base (1). A T-shaped rod (42) is rotatably connected inside the U-shaped block (41), and a rubber ball (43) is fixed at the bottom of the T-shaped rod (42). The rubber ball (43) is in contact with the fixed mold side wall of the stamping die. An encoder (44) electrically connected to the controller (2) is fixed to the side wall of the U-shaped block (41), and the rotating end of the encoder (44) is connected to the rotating end of the T-shaped rod (42) in a transmission connection.

4. The stamping die inspection device for an electric bicycle battery box according to claim 1, characterized in that, The drive unit (7) includes a support plate (71) fixed to the side wall of the support base (1). A vertical push hydraulic cylinder (72) is fixedly inserted into the support plate (71), and an L-shaped plate (73) is fixed to the movable end of the vertical push hydraulic cylinder (72). A horizontal push hydraulic cylinder (74) is fixedly inserted into the vertical side wall of the L-shaped plate (73). A flipping component (9) is installed on the movable end of the horizontal push hydraulic cylinder (74). The mounting base (5) is installed on the drive end of the flipping component (9). Both the vertical push hydraulic cylinder (72) and the horizontal push hydraulic cylinder (74) are electrically connected to the controller (2).

5. The stamping die inspection device for an electric bicycle battery box according to claim 4, characterized in that, The flipping assembly (9) includes a fixed frame (91) fixed to the movable end of the horizontal thrust hydraulic cylinder (74), a flipping motor (92) fixed to the side wall of the fixed frame (91), and a mounting base (5) fixed to the drive end of the flipping motor (92). The flipping motor (92) is electrically connected to the controller (2).

6. The stamping die inspection device for an electric bicycle battery box according to claim 4, characterized in that, The stamping waste detection unit (8) includes a sealing hopper (81) fixed to the bottom of the mounting base (5). The side wall of the sealing hopper (81) is fixedly connected to a dust collection hopper (82). The dust collection hopper (82) is fixedly connected to a dust collection hose (83). The end face of the support plate (71) is provided with a through hole connected to the dust collection hose (83). The bottom of the support plate (71) is fixed with a square tube (84) connected to the through hole. A gas turbidity detector (85) is installed on the tube wall of the square tube (84). A negative pressure dust collection mechanism (10) is installed at the bottom of the support plate (71), and the negative pressure dust collection mechanism (10) is connected to the square tube (84). The gas turbidity detector (85) is electrically connected to the controller (2).

7. The stamping die inspection device for an electric bicycle battery box according to claim 6, characterized in that, The negative pressure dust collection mechanism (10) includes a dust collection box (101) fixed to the bottom of the support plate (71), the square tube (84) is arranged inside the dust collection box (101), an air pump (102) is fixed on the side wall of the dust collection box (101), and the suction end of the air pump (102) is connected to the dust collection box (101). A filter screen (103) is installed inside the dust collection box (101) on one side of the suction end of the air pump (102), and an air blowing assembly (11) is installed at the air outlet end of the air pump (102).

8. The stamping die inspection device for an electric bicycle battery box according to claim 7, characterized in that, The air blowing assembly (11) includes an arc-shaped plate (111) fixed inside the sealing hopper (81), and the arc-shaped plate (111) is located inside the sealing hopper (81) on the side away from the dust collection hopper (82). The side wall of the arc-shaped plate (111) is provided with a plurality of air blowing holes (112). The side wall of the sealing hopper (81) is fixedly connected to a connecting pipe (113), and an air outlet hose (114) is fixedly connected between the connecting pipe (113) and the air outlet end of the air pump (102).

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