A fixture mistake proofing mechanism

Abstract

The utility model relates to the technical field of automobile parts, and disclose a clamp mistake proofing mechanism. This kind of clamp mistake proofing mechanism, including production line equipment, be provided with mounting bracket on the production line equipment, the inboard of mounting bracket is provided with pin shaft, and the end of mounting bracket is equipped with detection sensor. The utility model is through setting detection pin, balance seat and detection sensor, and the workpiece without gap makes detection pin receive pressure, and balance seat lifts, and then the indicator light on detection sensor is off, and it is represented that the existence of specified workpiece is not detected, and the workpiece with gap makes detection pin without pressure, and balance seat is falling state, the indicator light on detection sensor is light state at this moment, and it is represented that the existence of specified workpiece is detected, then detection sensor communicates through PLC controller, sends the information that this workpiece is mutually exclusive with selected vehicle type, and equipment alarm simultaneously, solve the similar parts of two vehicle types mix line production misloading problem.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically to a clamping error prevention mechanism. Background Technology

[0002] With the rapid development of the domestic automobile industry, the number of production lines that can accommodate multiple products has greatly increased. The production lines have achieved flexible mixed-line production, and the products produced are extremely similar, which poses a challenge to the error prevention system of the production line. Therefore, the fixture error prevention system is of paramount importance.

[0003] In existing technologies, production lines are equipped with detection sensors to detect the presence or absence of workpieces and send signals to the PLC to determine whether workpieces are missing or incorrectly installed, thereby achieving workpiece error prevention. However, the single sensor structure cannot accurately distinguish similar parts, can only detect the presence or absence of workpieces, and has the risk of false detection and misdetection, which easily produces defective products. Therefore, there is an urgent need for a fixture error prevention mechanism. Utility Model Content

[0004] The purpose of this utility model is to provide a clamping error prevention mechanism to solve the problem mentioned in the background art. In the prior art, the production line is equipped with detection sensors to detect the presence or absence of workpieces and send signals to the PLC to determine whether the workpieces are missing or mis-installed, thereby realizing the error prevention of workpieces. However, the single sensor structure cannot accurately distinguish similar parts, can only detect the presence or absence of workpieces, and there is a risk of false detection and mis-detection, which easily leads to the problem of defective products.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a clamp error prevention mechanism, including a production line equipment, a mounting frame is provided on the production line equipment, a pin is provided on the inner side of the mounting frame, a detection sensor is installed at the end of the mounting frame, a fixing frame is provided at the bottom of the mounting frame, a balance seat is connected to the inner side of the pin, and a detection pin is installed on one side of the balance seat.

[0006] Preferably, a spring is provided on one side of the pin, and the spring is fixedly connected to the balance seat.

[0007] Preferably, the balance seat is rotatably connected to the pin shaft, and the detection pin is movably connected to the pin shaft through the balance seat.

[0008] Preferably, the pin and spring are both fixedly connected to the mounting bracket, and the mounting bracket is fixedly installed on the production line equipment.

[0009] Preferably, the detection sensor is fixedly installed to the mounting bracket by bolts.

[0010] Preferably, the top of the detection pin is engaged with a workpiece, and there are two types of workpieces, one of which has a notch.

[0011] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0012] This invention solves the problem of misassembly in the production of similar parts for two different car models by setting a detection pin, a balance seat, and a detection sensor. When a workpiece without a notch is present, the detection pin is under pressure, the balance seat is raised, and the indicator light on the detection sensor is off, indicating that no workpiece has been detected. When a workpiece with a notch is present, the detection pin is depressed, the balance seat is lowered, and the indicator light on the detection sensor is on, indicating that the workpiece has been detected. The detection sensor then communicates with the PLC controller to send a message indicating that the workpiece is mutually exclusive with the selected car model. At the same time, the equipment alarms, thus solving the problem of misassembly in the production of similar parts for two different car models on the same production line. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the detection sensor structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the detection pin of this utility model;

[0016] Figure 4 This is a schematic diagram of the balance seat structure of this utility model.

[0017] The components include: 1. Production line equipment; 2. Balance seat; 3. Pin; 4. Detection pin; 5. Spring; 6. Fixing frame; 7. Detection sensor; 8. Mounting frame; 9. Workpiece. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-4A clamping error prevention mechanism includes a production line device 1. A mounting frame 8 is provided on the production line device 1. A pin 3 is provided on the inner side of the mounting frame 8, and a detection sensor 7 is installed at the end of the mounting frame 8. A fixing frame 6 is provided at the bottom of the mounting frame 8. A balance seat 2 is connected to the inner side of the pin 3. A detection pin 4 is installed on one side of the balance seat 2, and a spring 5 is provided on one side of the pin 3. The spring 5 is fixedly connected to the balance seat 2, and the balance seat 2 is rotatably connected to the pin 3. The detection pin 4 is movably connected to the pin 3 through the balance seat 2. The pin 3 and the spring 5 are both fixedly connected to the mounting frame 8. The mounting frame 8 is fixedly installed to the production line device 1. The detection sensor 7 is fixedly installed to the mounting frame 8 by bolts. A workpiece 9 is engaged at the top of the detection pin 4. There are two types of workpieces 9: one type has a notch. First, workpieces 9 without notches are placed on the production line device 1. When workpiece 9 is placed on production line equipment 1, the workpiece 9 presses down on the detection pin 4. The pressure causes the detection pin 4 to squeeze the spring 5 and rotate downwards under the support of the pin shaft 3. At the same time, the balance seat 2 on one side of the detection pin 4 is lifted, and the indicator light on the detection sensor 7 is off, indicating that the specified workpiece 9 has not been detected. When the workpiece 9 with a notch is placed on the production line equipment 1, the workpiece 9 does not contact the detection pin 4, so the detection pin 4 is under no pressure, and the balance seat 2 is in a falling state. At this time, the indicator light on the detection sensor 7 is on, indicating that the specified workpiece 9 has been detected. Then, the detection sensor 7 communicates with the PLC controller and sends information that the workpiece 9 is mutually exclusive with the selected model. At the same time, the equipment alarms. This solves the problem of mixed production and misassembly of similar parts of two models on the existing production line. It can avoid the risk of loss to customers caused by incorrect clamping of subsequent fixtures and failure to assemble.

[0020] In operation, when a workpiece 9 without a notch is placed on production line equipment 1, the workpiece 9 presses down on the detection pin 4. The pressure causes the detection pin 4 to squeeze the spring 5 and rotate downwards under the support of the pin shaft 3. At the same time, the balance seat 2 on one side of the detection pin 4 is raised, and the indicator light on the detection sensor 7 is off, indicating that the specified workpiece 9 has not been detected. When a workpiece 9 with a notch is placed on production line equipment 1, the workpiece 9 does not contact the detection pin 4, so the detection pin 4 is under no pressure, and the balance seat 2 is in a falling state. At this time, the indicator light on the detection sensor 7 is on, indicating that the specified workpiece 9 has been detected. Then, the detection sensor 7 communicates with the PLC controller and sends information that the workpiece 9 is mutually exclusive with the selected vehicle model. At the same time, the equipment alarms. This solves the problem of mis-assembly of similar parts of two different vehicle models in mixed production lines and avoids the risk of subsequent fixture mis-clamping and assembly failure, which could cause losses to customers.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations may be made to these embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clamp error-proofing mechanism comprising a production line device (1), characterized in that: The production line equipment (1) is provided with a mounting frame (8), a pin (3) is provided on the inner side of the mounting frame (8), and a detection sensor (7) is installed at the end of the mounting frame (8). A fixing frame (6) is provided at the bottom of the mounting frame (8). A balance seat (2) is connected to the inner side of the pin (3), and a detection pin (4) is installed on one side of the balance seat (2).

2. A fixture mistake proofing mechanism according to claim 1, wherein: A spring (5) is provided on one side of the pin (3), and the spring (5) is fixedly connected to the balance seat (2).

3. A fixture mistake proofing mechanism according to claim 1, wherein: The balance seat (2) is rotatably connected to the pin (3), and the detection pin (4) is movably connected to the pin (3) through the balance seat (2).

4. A fixture mistake proofing mechanism according to claim 2, wherein: The pin (3) and spring (5) are fixedly connected to the mounting bracket (8), and the mounting bracket (8) is fixedly installed on the production line equipment (1).

5. A fixture mistake proofing mechanism according to claim 1, wherein: The detection sensor (7) and the mounting bracket (8) are fixedly installed by bolts.

6. A fixture mistake proofing mechanism according to claim 1, wherein: The top of the detection pin (4) is engaged with a workpiece (9). There are two types of workpieces (9), one of which has a notch.

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