Error-proofing device for top cover front cross beam assembly

Abstract

The utility model relates to the technical field of automatic detection of a top cover front cross beam assembly, and particularly discloses a mistake proofing device for the top cover front cross beam assembly, which comprises a positioning piece, an in-place sensing switch, a laser sensor and a signal warning indicator, and is characterized in that the positioning piece is used for positioning the top cover front cross beam assembly; the in-place sensing switch is used for sensing whether the top cover front cross beam assembly on the positioning piece is assembled in place or not, the laser sensor is used for sensing the outline position of the top cover front cross beam assembly on the positioning piece, and the signal warning indicator is in signal connection with the laser sensor and used for sending out a signal sensed by the laser sensor. The device can prevent mistakes in the front, is high in detection efficiency, and can improve the yield.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic detection of a roof front crossbeam assembly, in particular to an error prevention device for a roof front crossbeam assembly. Background Art

[0002] Lean production aims for a 100% yield rate, making automation essential. During automated production, the front crossmember assembly of the roof is inspected to prevent defective parts from being installed before the vehicle body, or to prevent parts with similar dimensions from being incorrectly installed during product changes or parts delivery mismatches. A lengthy inspection process can negatively impact automated production efficiency. Utility Model Content

[0003] The purpose of the utility model is to provide a top cover front crossbeam assembly with high detection efficiency and the ability to improve the yield rate.

[0004] The purpose of the utility model can be achieved through the following technical solutions:

[0005] A device for preventing errors in a front crossbeam assembly of a roof cover comprises a positioning member, an in-position sensing switch, a laser sensor and a signal alarm. The positioning member is used to position the front crossbeam assembly of the roof cover. The in-position sensing switch is used to sense whether the front crossbeam assembly of the roof cover on the positioning member is assembled in place. The laser sensor is used to sense the contour position of the front crossbeam assembly of the roof cover on the positioning member. The signal alarm is connected to the laser sensor signal and is used to emit a signal sensed by the laser sensor.

[0006] In a further solution, the positioning member includes a support frame, and the support frame is provided with positioning pins, and the positioning pins are used to position the mounting holes at both ends of the top cover front crossbeam assembly.

[0007] In a further solution, the positioning pin is in the shape of a prism.

[0008] In a further solution, the signal alarm is installed on one side of the support frame, and the in-position sensing switch and laser sensor are respectively arranged on the table surface of the support frame.

[0009] In a further solution, the table top of the support stand is placed at an angle.

[0010] In a further solution, the position sensing switch includes a photoelectric sensor or a proximity switch.

[0011] In a further solution, there are at least two laser sensors, which are respectively arranged at the corresponding connection hole positions at both ends of the top cover front crossbeam assembly.

[0012] In a further solution, the signal alarm includes a three-color warning light and a buzzer, and the three-color warning light and buzzer provide electrical signals to control the signals of the laser sensor and the in-position sensing switch through a PLC controller.

[0013] In a further solution, the positioning member further includes a connecting plate, which is provided with a positioning hole, and the top cover front crossbeam assembly is connected to the positioning hole via a positioning pin.

[0014] In a further solution, the roof front crossbeam assembly includes a sheet metal part, and mounting holes are punched at both ends of the sheet metal part.

[0015] Beneficial effects of the utility model:

[0016] The utility model adopts the selection of positioning parts, in-position sensing switches, laser sensors and signal alarms in conjunction with the existing control table, PLC controller and imaging display to achieve pre-error prevention of the front crossbeam assembly of the top cover, identify in advance whether the parts are installed incorrectly and provide direct prompts. Compared with installing the parts on the fixture and then preventing errors, the error prevention effect is better, and the yield rate and work efficiency can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the connection of an error-proofing device for a front crossbeam assembly of a roof in an embodiment of the present utility model;

[0019] Figure 2 Schematic diagram of a pyramid-shaped positioning pin in this embodiment;

[0020] In the figure: 1. Positioning part; 2. In-position sensor switch; 3. Positioning pin; 4. Signal warning device; 5. Laser sensor; 0. Top cover front crossbeam assembly; 6. Support stand. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] like Figure 1As shown, a device for preventing errors in a roof front cross beam assembly includes a positioning member 1, an in-position sensing switch 2, a laser sensor 5 and a signal warning device 4. The positioning member 1 is used to position the roof front cross beam assembly, the in-position sensing switch 2 is used to sense whether the roof front cross beam assembly on the positioning member 1 is assembled in place, the laser sensor 5 is used to sense the contour position of the roof front cross beam assembly on the positioning member 1, and the signal warning device 4 is connected to the laser sensor 5 for emitting a signal sensed by the laser sensor 5. The dotted line in the figure represents the outer contour of a roof front cross beam assembly 0, and the solid line represents another roof front cross beam assembly 0 of similar shape, which is used for different vehicle models.

[0023] Its working principle or implementation method is to position the top cover front crossbeam assembly through the positioning mechanism, and after the top cover front crossbeam assembly is in position signal sensed by the in-position sensing switch 2, the laser sensor 5 sends a laser to sense whether the contour of the top cover front crossbeam assembly is the correct contour. When the detected contour is different from the contour on the human-computer interaction screen of the assembly line, the pixel area is different after overlap, and a warning signal is sent to the signal alarm 4 to remind the staff that the installed parts are wrong and need to be replaced. If they are not in position, the previous process is prompted to deliver parts. When the contour is detected by the laser sensor 5 without difference after it is in position, no warning signal is sent.

[0024] Those skilled in the art will readily appreciate that the misplacement device described above can be used in a variety of applications, such as automated coating lines, welding lines, and production lines for roof front crossbeam assemblies. Therefore, the mounting locations of the positioning member 1, in-position sensor switch 2, laser sensor 5, and signal alarm 4 can be appropriately arranged based on specific needs, and are not described in detail here.

[0025] Based on the above working principle, some preferred implementation structures or methods are provided. The positioning member 1 includes a support frame 6, on which are provided positioning pins 3. The positioning pins 3 are used to locate the mounting holes at both ends of the roof front crossbeam assembly. This positioning member 1 can be widely used in various inspection situations of the roof front crossbeam assembly.

[0026] like Figure 2 As shown, the locating pin 3 is in a prism shape. The prism-shaped locating pin 3 is more convenient for taking and fastening the top cover front crossbeam assembly.

[0027] The signal alarm 4 is mounted on one side of the support frame 6, and the in-position sensor 2 and the laser sensor 5 are respectively mounted on the surface of the support frame 6. Those skilled in the art will appreciate that the in-position sensor 2 and the laser sensor 5 can also be mounted separately using a designed bracket, hollowed out on the support frame, and placed below or above the support frame 6.

[0028] The table top of the support stand 6 is tilted so as to facilitate the placement of the front crossbeam assembly of the top cover.

[0029] The in-position induction switch 2 includes a photoelectric sensor or a proximity switch. Both are commonly used in-position induction switches 2 and can be reasonably arranged according to detection requirements.

[0030] There are at least two laser sensors 5, which are respectively arranged at the corresponding connection holes at both ends of the roof front crossbeam assembly. In this way, the contour of the roof front crossbeam assembly can be laser-photoelectrically sensed from multiple angles, thereby increasing the detection surface and improving the detection accuracy.

[0031] The signal warning device 4 includes a three-color warning light and a buzzer. These signals, transmitted through the PLC controller, control the laser sensor 5 and the in-position sensor switch 2. These three-color warning lights and buzzers are commonly used signal warning devices 4 and can be strategically positioned to meet specific alert requirements. When the laser sensor 5 detects an abnormal component, it transmits a signal to the PLC controller, which in turn controls the relay switches connected to the three-color warning light and buzzer to generate signals, thereby providing a flashing and audible alarm. The yellow color of the three-color light can also be used to indicate an out-of-position warning. Similarly, the de-alarming option can be selected based on specific requirements.

[0032] The positioning member 1 also includes a connecting plate with a positioning hole. The roof front crossbeam assembly is connected to the positioning hole via a positioning pin 3. The connecting plate can be used to connect to a conveyor belt, etc., for transporting or installing the roof front crossbeam assembly. This allows for its application in a variety of situations.

[0033] The roof front crossbeam assembly to be tested can be a sheet metal part with mounting holes punched at both ends. Of course, it can also be a non-sheet metal part.

[0034] During specific inspection, the prism-shaped locating pin 3 can be used to fix the front crossbeam assembly of the top cover in the gluing position. The prism-shaped locating pin 3 is more practical than the round locating pin 3, and will not cause parts to be jammed, affecting employees' taking of the front crossbeam assembly parts. A proximity switch is added to the support stand 6 to detect whether the parts are assembled in place. Secondly, it is convenient for the PLC to identify whether the front crossbeam assembly parts of the current model have been taken away. After the conditions are met, the model initialization is completed and the next car is executed. The differences in the front crossbeam assemblies of different models are small, and conventional proximity switches cannot detect the differences. Finally, a laser sensor 5 is selected to detect the differences in the parts. The laser detection point can be accurate to millimeters, which is particularly suitable for situations where the differences in parts are small and difficult to distinguish with the naked eye. The employee takes the front crossbeam assembly and places it on the error-proofing detection device. When the parts are taken correctly, the three-color warning light turns green and the normal operation can continue. When an operator takes a part of the front top crossbeam assembly that does not match the current model, the three-color warning light turns red and the PLC controls the tooling equipment to alarm and stop the next action. At this time, the operator cannot proceed to the next step and can find the fault by observing the color of the three-color light. At this time, the line PLC sends a signal to the human-computer interaction screen, and prompts the fault point in the image to facilitate maintenance personnel to view the fault point. The maintenance personnel then confirms that the operator has replaced the correct part before performing the recovery operation, thus providing double protection to prevent the outflow of defective products. The advantage of this device is that because it is a front-mounted error-proofing device, it can identify errors before the front top crossbeam assembly is assembled to the vehicle body, guide employees to select the correct front top crossbeam assembly, reduce the single-unit fault handling time by 5 minutes, reduce the impact of the fault on the line, increase the hourly capacity by 1 unit, and at the same time improve the yield rate of the production line and reduce the risk of wrong installation, with direct economic benefits of 96,000 yuan per year.

[0035] It should be noted that the terms "first", "second" etc. in this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the application described herein. In this application, the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "center", "vertical", "horizontal", "lateral", "longitudinal" etc. are based on the directions or positional relationships shown in the accompanying drawings.

[0036] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. An anti-error device for a front crossbeam assembly of a roof, characterized in that: The invention comprises a positioning member (1), an in-position sensing switch (2), a laser sensor (5) and a signal warning device (4); the positioning member (1) is used to position the front cross beam assembly of the top cover; the in-position sensing switch (2) is used to sense whether the front cross beam assembly of the top cover on the positioning member (1) is assembled in place; the laser sensor (5) is used to sense the contour position of the front cross beam assembly of the top cover on the positioning member (1); and the signal warning device (4) is connected to the laser sensor (5) signal and is used to send out the signal sensed by the laser sensor (5).

2. The anti-error device for the front cross beam assembly of the top cover according to claim 1, characterized in that: The positioning member (1) comprises a support frame (6), and the support frame (6) is provided with positioning pins (3), and the positioning pins (3) are used to position the mounting holes at both ends of the top cover front crossbeam assembly.

3. The anti-error device for the front cross beam assembly of the top cover according to claim 2, characterized in that: The positioning pin (3) is in the shape of a prism.

4. The anti-error device for the front cross beam assembly of the top cover according to claim 2, characterized in that: The signal alarm (4) is installed on one side of the support stand (6), and the in-position sensing switch (2) and the laser sensor (5) are respectively arranged on the table surface of the support stand (6).

5. The anti-error device for the front cross beam assembly of the top cover according to claim 2, characterized in that: The table top of the supporting stand (6) is placed tilted.

6. The anti-error device for the front cross beam assembly of the roof according to claim 1, characterized in that: The in-position sensing switch (2) comprises a photoelectric sensor or a proximity switch.

7. The anti-error device for the front cross beam assembly of the roof according to claim 1, characterized in that: The number of the laser sensors (5) is at least two, and they are respectively arranged at the positions of the connecting holes at both ends of the top cover front crossbeam assembly.

8. The anti-error device for the front cross beam assembly of the roof according to claim 1, characterized in that: The signal warning device (4) comprises a three-color warning light and a buzzer, and the three-color warning light and the buzzer provide electrical signals to control the signals of the laser sensor (5) and the in-position sensing switch (2) through a PLC controller.

9. The anti-error device for the front cross beam assembly of the roof according to claim 1, characterized in that: The positioning member (1) also includes a connecting plate, on which a positioning hole is provided, and the top cover front crossbeam assembly is connected to the positioning hole via a positioning pin (3).

10. The anti-error device for the front cross beam assembly of the roof according to claim 1, characterized in that: The top cover front cross beam assembly comprises a sheet metal part, and mounting holes are punched at both ends of the sheet metal part.

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