Front and back recognition device based on laser sensor

Abstract

The utility model relates to the technical field of automation equipment, in particular to a front and back recognition device based on a laser sensor, which comprises a guide device, a conveying device and a detection device, the guide device comprises two symmetrical adjustable guide plates, the lower ends of the adjustable guide plates are fixedly provided with the upper end of a guide plate support, and the upper end of the guide plate support is fixedly provided with a laser sensor. And the guide plate bracket is fixedly mounted on the conveying device. According to the utility model, the laser sensor is utilized to detect the concave-convex structure of the product moving on the conveying device according to the difference of the positive and negative concave-convex structures of the product guided by the guide plate, and the laser sensor converts the detected concave-convex structure into a switching value signal for transmission and identification; the positive and negative states of the product are judged by calculating the number of the switching value signals identified within a certain time.

Description

Technical Field

[0001] The utility model relates to the technical field of automation equipment, in particular to a front and back identification device based on a laser sensor. Background Art

[0002] At present, in industrial automation production equipment, in order to prevent products from being reversed during the automatic loading process, resulting in quality anomalies such as assembly failure and product scrapping, in order to avoid such anomalies, front and back identification is performed before assembly, and then correction or elimination is performed. Simple methods include mechanical error prevention, fiber optic identification or visual identification, but the cost of visual recognition is high, and it is a waste of resources for only identifying the front and back of products. Mechanical error prevention, fiber optic identification and other methods cannot achieve the simultaneous application of multiple specifications of oil seals, and the adjustment is cumbersome and requires the adjuster to have a certain level of technical skills, and the function cannot be quickly realized on the production site.

[0003] In summary, a front and back identification device based on a laser sensor is proposed. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a front and back identification device based on a laser sensor.

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

[0006] A front and back identification device based on a laser sensor, comprising a guide device, a conveying device and a detection device, wherein the guide device comprises two symmetrical adjustable guide plates, the lower end of the adjustable guide plate is fixed with the upper end of a guide plate bracket, and the guide plate bracket is fixedly mounted on the conveying device;

[0007] The transmission device comprises a transmission belt assembly and a transmission motor, the transmission belt assembly is connected to a coupling, and the coupling is connected to the end of the output shaft of the transmission motor;

[0008] The detection device comprises a sensor bracket and a laser sensor. The laser sensor is fixedly mounted on one side of the upper end of the sensor bracket. The laser sensor is located at the upper end of the conveyor belt assembly. The sensor bracket is fixed on one side of the conveyor belt assembly.

[0009] Preferably, the upper end of the conveyor belt assembly is in contact with a product part, and the product part is composed of an outer tube, an inner tube and an annular part. The inner tube is arranged in the outer tube, the inner tube and the outer tube are coaxially arranged, and the annular part is fixed to the lower ends of the inner tube and the outer tube.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The utility model detects the concave and convex structural surfaces on the front and back of the product through a laser sensor, which can achieve accurate detection.

[0012] 2. The utility model can realize the detection of products of different sizes and specifications, and can realize the use of multiple products on one machine.

[0013] 3. The utility model can realize fast switching of different products by only adjusting the position of the guide plate and setting the detection time.

[0014] 4. The utility model has a small investment cost, which can reduce the equipment investment cost.

[0015] 5. The utility model has high precision and can completely identify products with structural differences on the front and back, meeting production quality requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 This is a structural diagram of the product of the utility model;

[0018] In the figure: 1 transmission motor, 2 transmission belt assembly, 3 adjustable guide plate, 4 guide plate bracket, 5 coupling, 6 laser sensor, 7 sensor bracket, 8 product parts, 801 outer pipe fittings, 802 inner pipe fittings, 803 ring parts. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-2 A front and back identification device based on a laser sensor includes a guiding device, a conveying device and a detecting device, which can stably convey a product part 8, and can also effectively correct it, as well as realize the front and back identification of the product part 8. The guiding device includes two symmetrical adjustable guide plates 3, through which the position of the product part 8 can be controlled, so that the product part 8 can be located in the middle of a conveying belt assembly 2 for conveying, and the lower end of the adjustable guide plate 3 is fixed with the upper end of a guide plate bracket 4, and the guide plate bracket 4 is fixedly installed on the conveying device.

[0021] Reference Figure 1-2The conveying device includes a conveying belt assembly 2 and a transmission motor 1. The transmission motor 1 is connected to external supporting components and can stably rotate the transmission motor 1. The conveying belt assembly 2 is connected to a coupling 5. The coupling 5 is connected to the end of the output shaft of the transmission motor 1. The conveying belt assembly 2 consists of a conveying frame, two conveying shafts and a conveying belt. The conveying belt is sleeved on the two conveying shafts. The conveying shafts and the coupling 5 are connected to facilitate connection through the transmission motor 1.

[0022] Reference Figure 1-2 The detection device includes a sensor bracket 7 and a laser sensor 6. The laser sensor 6 is fixedly installed on one side of the upper end of the sensor bracket 7. The laser sensor 6 is located at the upper end of the conveyor belt assembly 2. The sensor bracket 7 is fixed on one side of the conveyor belt assembly 2. In actual use, the laser sensor 6 is connected to an external supporting device, so that the data detected by the laser sensor 6 can be transmitted to the external supporting device, so that the external supporting device can detect and understand the front and back of the product 8.

[0023] Reference Figure 1-2 , the upper end of the conveyor belt assembly 2 is in contact with the product part 8, and the product part 8 is composed of an outer tube 801, an inner tube 802 and an annular part 803. The inner tube 802 is arranged in the outer tube 801, and the inner tube 802 and the outer tube 801 are arranged coaxially. The annular part 803 is fixed to the lower ends of the inner tube 802 and the outer tube 801. When the outer tube 801 and the inner tube 802 of the product part 8 pass under the laser sensor 6, the laser sensor 6 will output an ON-OFF signal when detecting the outer tube 801, and will output a second ON-OFF signal when detecting the inner tube 802, that is, there are 2 The signal will be output by the laser sensor 6 to the external control component. The external control component will start the timing when it receives the first signal. If it receives the second signal before the timing ends, the oil seal is determined to be a positive part. When the annular part 803 passes under the laser sensor 6, the laser sensor 6 will send an ON-OFF signal output when it detects the annular part 803, that is, a signal will be sent to the external control component by the laser sensor 2. The external control component uses a programmable controller to start the timing when it receives the first signal. If it does not receive the second signal before the timing ends, the product part 8 is determined to be a negative part.

[0024] In the present utility model, when in use, in order to ensure correct identification, it is necessary to adjust the sensing distance of the laser sensor 6, and the sensing distance is adjusted to the height of the center axis position of the product part 8. When the outer tube 801 and the inner tube 802 of the product part 8 pass under the laser sensor 6, the laser sensor 6 will output an ON-OFF signal when detecting the outer tube 801, and will output a second ON-OFF signal when detecting the inner tube 802, that is, two signals will be output by the laser sensor 6 to the external control component, and the external control component will start the timing when receiving the first signal, and receive the second signal before the end of the timing, then the oil seal is determined to be a positive part; when the ring part 803 passes under the laser sensor 6, the laser sensor 6 will send an ON-OFF signal output when detecting the ring part 803, that is, one signal will be sent to the external control component by the laser sensor 2, and the external control component using a programmable controller will start the timing when receiving the first signal, and if the second signal is not received before the end of the timing, then the product part 8 is determined to be a negative part.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A front and back identification device based on a laser sensor, comprising a guiding device, a conveying device and a detecting device, characterized in that: The guide device comprises two symmetrical adjustable guide plates (3), the lower ends of the adjustable guide plates (3) are fixed with the upper ends of the guide plate brackets (4), and the guide plate brackets (4) are fixedly mounted on the conveying device; The transmission device comprises a transmission belt assembly (2) and a transmission motor (1), the transmission belt assembly (2) is connected to a coupling (5), and the coupling (5) is connected to the end of the output shaft of the transmission motor (1); The detection device comprises a sensor bracket (7) and a laser sensor (6); the laser sensor (6) is fixedly mounted on one side of the upper end of the sensor bracket (7); the laser sensor (6) is located at the upper end of the conveyor belt assembly (2); and the sensor bracket (7) is fixed on one side of the conveyor belt assembly (2).

2. The front and back identification device based on a laser sensor according to claim 1, characterized in that: The upper end of the conveyor belt assembly (2) is in contact with a product part (8), and the product part (8) is composed of an outer tube part (801), an inner tube part (802), and an annular part (803). The inner tube part (802) is arranged inside the outer tube part (801), and the inner tube part (802) and the outer tube part (801) are coaxially arranged. The annular part (803) is fixed to the lower ends of the inner tube part (802) and the outer tube part (801).

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