Stamping part cracking detection device

Abstract

The utility model provides a stamping part cracking detection device, relates to the technical field of part detection, and solves the technical problem of low detection efficiency of manual detection of part cracking in the prior art. The device comprises a support, a suction cup assembly, an air cylinder, a vacuum generator and an air pressure meter, the air cylinder is installed on the support, a piston rod of the air cylinder is connected with the suction cup assembly, and an air source is communicated with the air cylinder and the vacuum generator. The vacuum generator is communicated with the suction cup assembly through a negative pressure pipeline, and the air pressure meter is communicated with the negative pressure pipeline.

Description

Technical Field

[0001] The utility model relates to the technical field of parts detection, in particular to a stamping parts crack detection device. Background Art

[0002] Due to the influence of factors such as fluctuations in raw material properties, heat generation of the mold itself, cleanliness of the blank surface, and the speed of the press, automobile stamping parts often crack suddenly. If cracked parts are not identified and isolated, once installed on the vehicle, they may cause vehicle malfunctions such as water leakage and insufficient strength.

[0003] For crack detection of parts, workers mainly use naked eyes to observe whether the parts are cracked. However, the manual detection method has the problem of inaccurate detection results and low detection efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a stamping parts crack detection device to solve the technical problem of low detection efficiency of manual detection of parts crack in the prior art. The preferred technical solution among the many technical solutions provided by the utility model can produce many technical effects as described below.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The utility model provides a stamping parts crack detection device, comprising a bracket, a suction cup assembly, a cylinder, a vacuum generator and an air pressure measuring gauge, wherein the cylinder is mounted on the bracket and the piston rod of the cylinder is connected to the suction cup assembly, an air source is respectively connected to the cylinder and the vacuum generator, the vacuum generator is connected to the suction cup assembly through a negative pressure pipeline, and the air pressure measuring gauge is connected to the negative pressure pipeline.

[0007] Optionally, it also includes a first solenoid valve, a second solenoid valve and a processor, the input port of the first solenoid valve is connected to the air source, the first output port of the first solenoid valve is connected to the first air inlet port of the cylinder, the second output port of the first solenoid valve is connected to the second air inlet port of the cylinder, the second solenoid valve is connected between the air source and the vacuum generator, the first solenoid valve and the second solenoid valve are both communicatively connected to the processor, and the processor is communicatively connected to the air pressure measuring meter.

[0008] Optionally, it also includes an audible and visual alarm, which is communicatively connected to the processor.

[0009] Optionally, a power supply is also included, and the power supply is electrically connected to the processor.

[0010] Optionally, the bracket includes a base and a connecting plate, the base is fixedly connected to the connecting plate, and the connecting plate is connected to the cylinder;

[0011] An angle is formed between the base and the connecting plate.

[0012] Optionally, a reinforcement plate is provided on the base.

[0013] Optionally, the gas source, the gas cylinder and the vacuum generator are connected via a tee.

[0014] Optionally, a ventilation connector is provided on the negative pressure pipeline, and the ventilation connector is connected to the air pressure measuring meter.

[0015] The utility model provides a stamping part crack detection device, which installs a bracket at a specified position. When the stamping part reaches the specified position, the air source will ventilate the cylinder and the vacuum generator respectively, and the cylinder will push the suction cup assembly to move close to the stamping part. When the suction cup assembly and the stamping part are in contact, the vacuum generator will generate vacuum negative air pressure, so that the suction cup assembly adsorbs the stamping part to form a closed space, and at this time, the air pressure measuring meter will detect the air pressure value in the suction cup assembly. When the air pressure value is within the qualified range, it indicates that the stamping part is qualified; on the contrary, if the air pressure value exceeds the qualified range, the stamping part is cracked and unqualified, thereby realizing automatic detection and solving the technical problem of low efficiency in detecting cracks of parts manually in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of a stamping parts crack detection device provided by an embodiment of the utility model;

[0018] Figure 2 It is a structural schematic diagram of a bracket of a stamping part crack detection device provided by an embodiment of the utility model;

[0019] Figure 3 It is a schematic structural diagram of another type of a bracket of a stamping part crack detection device provided in an embodiment of the utility model.

[0020] In the figure, 1, bracket; 11, base; 12, connecting plate; 121, reinforcement plate; 2, suction cup assembly; 3, cylinder; 4, vacuum generator; 5, air pressure measuring meter; 6, negative pressure pipeline; 7, first solenoid valve; 8, processor; 9, sound and light alarm; 10, power supply; 20, three-way device; 30, ventilation connector. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0022] In the description of the present utility model, it should be noted that, unless otherwise specified, "multiple" means two or more; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it 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 an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0024] The utility model provides a stamping part crack detection device, comprising a bracket 1, a suction cup assembly 2, a cylinder 3, a vacuum generator 4 and an air pressure measuring gauge 5, wherein the cylinder 3 is mounted on the bracket 1 and the piston rod of the cylinder 3 is connected to the suction cup assembly 2, an air source is respectively connected to the cylinder 3 and the vacuum generator 4, the vacuum generator 4 is connected to the suction cup assembly 2 through a negative pressure pipeline 6, and the air pressure measuring gauge 5 is connected to the negative pressure pipeline 6. The utility model provides a stamping part crack detection device, which installs a bracket 1 at a specified position. When the stamping part reaches the specified position, the air source will ventilate the cylinder 3 and the vacuum generator 4 respectively, and the cylinder 3 will push the suction cup assembly 2 to move close to the stamping part. When the suction cup assembly 2 and the stamping part are in contact, the vacuum generator 4 will generate vacuum negative air pressure, so that the suction cup assembly 2 adsorbs the stamping part to form a closed space, and at this time, the air pressure measuring meter 5 will detect the air pressure value in the suction cup assembly 2. When the air pressure value is within the qualified range, it indicates that the stamping part is qualified; on the contrary, if the air pressure value exceeds the qualified range, the stamping part is cracked and unqualified, thereby realizing automatic detection and solving the technical problem of low efficiency in detecting cracks of parts manually in the prior art.

[0025] As an optional implementation, it also includes a first solenoid valve 7, a second solenoid valve and a processor 8, the input port of the first solenoid valve 7 is connected to the air source, the first output port of the first solenoid valve 7 is connected to the first air inlet port of the cylinder 3, the second output port of the first solenoid valve 7 is connected to the second air inlet port of the cylinder 3, the second solenoid valve is connected between the air source and the vacuum generator 4, the first solenoid valve 7 and the second solenoid valve are both communicatively connected to the processor 8, and the processor 8 is communicatively connected to the air pressure measuring meter 5.

[0026] The air pressure value detected by the air pressure measuring meter 5 can be transmitted to the processor 8, and the processor 8 can control the passage of the first electromagnetic valve 7, thereby controlling the extension or retraction movement of the cylinder 3, that is, when the processor 8 controls the first output port of the first electromagnetic valve 7 to communicate with the input port, the air pressure will flow to the first air inlet of the cylinder 3, thereby controlling the extension movement of the cylinder 3; when the processor 8 controls the second output port of the first electromagnetic valve 7 to communicate with the input port, the air pressure will flow to the second air inlet of the cylinder 3, thereby controlling the retraction movement of the cylinder 3. The processor 8 can control the on and off of the second electromagnetic valve, thereby controlling whether the vacuum generator 4 generates vacuum negative air pressure.

[0027] As an optional implementation, it also includes an audible and visual alarm 9, which is in communication with the processor 8. The processor 8 can judge whether the air pressure value is within the qualified range based on the received air pressure value. If the air pressure value is within the qualified range, the audible and visual alarm 9 will not sound; if the air pressure value exceeds the qualified range, the audible and visual alarm 9 will sound, thereby reminding the quality inspector. The processor 8 can be a PLC signal processor.

[0028] As an optional implementation, it also includes a power supply 10, which is electrically connected to the processor 8 and the sound and light alarm 9. The power supply 10 provides electrical energy for the entire device.

[0029] As an optional embodiment, the bracket 1 includes a base 11 and a connecting plate 12, the base 11 is fixedly connected to the connecting plate 12, and the connecting plate 12 is connected to the cylinder 3;

[0030] There is an angle between the base 11 and the connecting plate 12. The bracket 1 with the corresponding angle is selected according to the position of the stamped parts. The angle can be 180 degrees, at which time the suction cup assembly 2 is in a vertical state.

[0031] As an optional implementation, a reinforcing plate 121 is provided on the base 11 to enhance the stability of the base 11 .

[0032] As an optional implementation, the gas source, the cylinder 3 and the vacuum generator 4 are connected through a tee 20 , the first solenoid valve 7 is located between the cylinder 3 and the tee 20 , and the second solenoid valve is located between the vacuum generator 4 and the tee 20 .

[0033] As an optional implementation, a ventilation connector 30 is provided on the negative pressure pipeline 6, and the ventilation connector 30 is connected to the air pressure measuring meter 5. In addition, if a stamping part has multiple cracking risk points, multiple stamping part cracking detection devices can be set in series. As long as one detection device fails to meet the air pressure requirements, the machine can be shut down or an alarm can be issued.

[0034] The utility model is a stamping parts crack detection device, which sets the standard atmospheric pressure to 1, and the initial air pressure generated by the vacuum generator 4 to 0.2. For normal stamping parts without cracks, the air pressure value detected by the air pressure measuring meter 5 should be close to the initial air pressure of the vacuum generator 4, 0.2 atmospheres, and the air pressure value P of the cracked stamping parts should be greater than 0.2 atmospheres and close to 1 atmosphere (that is, 0.2<P≤1). In order to eliminate unstable factors such as poor adsorption, we can set: when the air pressure value P<0.3, it is a normal stamping part without cracks, when the air pressure value is between 0.3≤P≤1, it is a cracked stamping part, and the closer the air pressure value is to 1, the larger the crack.

[0035] The specific operation method is:

[0036] 1. Put the stamping parts into the transition station (a transition station means that a production line generally has four to five presses, and the mold process generally has three to five processes. In this way, there are usually some presses that are idle. These idle presses are called transition stations);

[0037] 2. Automatic air source ventilation, the air flow passes through the three-way device 20, the processor 8 controls the first output port of the first solenoid valve 7 to communicate with the input port, which will make the cylinder 3 extend, thereby pushing the suction cup assembly 2 to move towards the direction of the stamping part;

[0038] 3. After the suction cup assembly 2 and the stamped part come into contact, the processor 8 controls the second solenoid valve to be turned on, and the airflow will flow to the vacuum generator. The vacuum generator 4 will generate a vacuum negative pressure, so that the suction cup assembly 2 can absorb the stamped part, thereby forming a closed space and achieving the function of detecting cracks;

[0039] 4. The air pressure meter 5 detects the air pressure value in the suction cup assembly 2 and transmits the air pressure value to the processor 8;

[0040] 5. If the detected air pressure value is within the qualified range (i.e., P < 0.3), the stamped parts are judged to be qualified, and the processor 8 controls the second output port of the first solenoid valve 7 to communicate with the input port, and controls the second solenoid valve to be disconnected, the cylinder 3 retracts, the suction cup assembly 2 resets, and the stamped parts enter the next process;

[0041] 6. If the detected air pressure value is within the unqualified range (i.e. 0.3≤P≤1), the processor 8 will control the sound and light alarm 9 to sound an alarm. After receiving the alarm, the quality inspector will confirm the "crack" again, pick out the unqualified products and scrap them, and the operator will manually reset the system.

[0042] Advantages of the punching parts crack detection device of the utility model:

[0043] 1. The structure is simple and makes full use of the existing automated production control system's gas source control, power supply control and other automated units. It can be quickly installed, debugged and improved without the need for additional transformation and investment.

[0044] 2. Stable performance and good durability. It can adapt to the severe vibration during stamping production, is not affected by light, has good adaptability to the stamping production environment, and does not need to make special requirements on the temperature, humidity, light, and particulate matter in the air of the stamping line.

[0045] 3. It can quickly test each part that needs to be tested online one by one, and link with the existing automatic control system. When a defect is found, it can be shut down in time to achieve a complete detection.

[0046] 4. Cheap price and low cost.

[0047] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A stamping parts crack detection device, characterized in that: The invention comprises a support (1), a suction cup assembly (2), a cylinder (3), a vacuum generator (4) and an air pressure measuring meter (5), wherein: The cylinder (3) is mounted on the bracket (1) and the piston rod of the cylinder (3) is connected to the suction cup assembly (2); the air source is respectively connected to the cylinder (3) and the vacuum generator (4); the vacuum generator (4) is connected to the suction cup assembly (2) via a negative pressure pipeline (6); and the air pressure measuring meter (5) is connected to the negative pressure pipeline (6).

2. A stamping parts crack detection device according to claim 1, characterized in that: It also includes a first solenoid valve (7), a second solenoid valve and a processor (8), wherein the input port of the first solenoid valve (7) is connected to the gas source, the first output port of the first solenoid valve (7) is connected to the first air inlet port of the cylinder (3), the second output port of the first solenoid valve (7) is connected to the second air inlet port of the cylinder (3), the second solenoid valve is connected between the gas source and the vacuum generator (4), the first solenoid valve (7) and the second solenoid valve are both connected in communication with the processor (8), and the processor (8) is connected in communication with the air pressure measuring meter (5).

3. A stamping parts crack detection device according to claim 2, characterized in that: It also includes an audible and visual alarm (9), which is communicatively connected to the processor (8).

4. A stamping parts crack detection device according to claim 2, characterized in that: It also includes a power supply (10), which is electrically connected to the processor (8).

5. A stamping parts crack detection device according to claim 1, characterized in that: The bracket (1) comprises a base (11) and a connecting plate (12), the base (11) is fixedly connected to the connecting plate (12), and the connecting plate (12) is connected to the cylinder (3); There is an angle between the base (11) and the connecting plate (12).

6. A stamping parts crack detection device according to claim 5, characterized in that: A reinforcing plate (121) is provided on the base (11).

7. A stamping parts crack detection device according to claim 1, characterized in that: The gas source, the gas cylinder (3) and the vacuum generator (4) are connected via a three-way device (20).

8. A stamping parts crack detection device according to claim 1, characterized in that: The negative pressure pipeline (6) is provided with a ventilation connector (30), and the ventilation connector (30) is connected to the air pressure measuring meter (5).

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