Positive and negative detection device for buffer block of shock absorber

Abstract

The utility model relates to the technical field of detection devices, in particular to a forward and reverse detection device for a buffer block of a shock absorber, which comprises a frame, a sensor mounting bracket, a laser distance measuring sensor and a PLC (programmable logic controller) control unit, the PLC control unit is mounted on the front side of the middle of the frame, and the top of the frame is fixed with one end of the sensor mounting bracket; a first laser ranging sensor and a second laser ranging sensor are installed at the other end of the sensor installation support, one end of a laser track of the first laser ranging sensor is located at the edge, close to the outer ring, of the top of the buffer block, and the end of a second laser track of the second laser ranging sensor is located at the edge, close to the inner ring, of the top of the buffer block. Compared with the prior art, the two laser distance measuring sensors are used for measuring the distances from the sensors to the inner side and the outer side of the buffer block, so that the position, the front side and the back side of the buffer block can be accurately judged, wrong detection and missing detection are avoided, the labor intensity of workers is reduced to a certain extent, and the possibility that defective products flow out is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection device technical field, concretely speaking, a shock absorber buffer block positive and negative detection device. BACKGROUND

[0002] At present, the existing shock absorber buffer block assembly mainly adopts the manual assembly mode, that is, manually directly sleeving the shock absorber buffer block into the connecting rod step. The up-down position after assembly and whether reverse assembly are judged by artificial visual observation, which is prone to misjudgment or missed detection, causing defective products to flow out.

[0003] Therefore, it is necessary to design a shock absorber buffer block positive and negative detection device to solve the problems of assembly position out-of-tolerance and reverse assembly in the shock absorber buffer block assembly process. SUMMARY

[0004] The utility model discloses a kind of shock absorber buffer block positive and negative detection devices to overcome the deficiency of prior art, to solve the problems of assembly position out-of-tolerance and reverse assembly in the shock absorber buffer block assembly process.

[0005] In order to achieve the above purpose, the utility model is a kind of shock absorber buffer block positive and negative detection device, including frame, sensor mounting bracket, laser ranging sensor, PLC control unit, the middle part front side of frame is equipped with PLC control unit, the top of frame is fixed with one end of sensor mounting bracket, the other end of sensor mounting bracket is equipped with laser ranging sensor one, laser ranging sensor two, shock absorber with buffer block is located below laser ranging sensor one, laser ranging sensor two, and the laser trajectory one end of laser ranging sensor one is located at the edge position of buffer block top near outer ring, the laser trajectory two end of laser ranging sensor two is located at the edge position of buffer block top near inner ring, the signal output end of laser ranging sensor one, the signal output end of laser ranging sensor two are connected with two signal input ends of PLC control unit respectively.

[0006] The bottom of the frame is connected with the horizontal edge of the triangular fixed frame, and the vertical surface of the triangular fixed frame is fixed with the side of the wall or the equipment.

[0007] The laser trajectory one is a straight line with the laser emission end of laser ranging sensor one as starting point and the edge position of buffer block top near outer ring as terminal point.

[0008] The laser trajectory two is a straight line with the laser emission end of laser ranging sensor two as starting point and the edge position of buffer block top near inner ring as terminal point.

[0009] Compared with the existing technology, the utility model measures the distance from the sensor to the inner and outer sides of the buffer block through two laser ranging sensors, thereby accurately judging the position and front and back of the buffer block, avoiding false detection and missed detection, reducing the labor intensity of workers to a certain extent, and reducing the possibility of defective products flowing out. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural diagram of the present utility model.

[0011] Figure 2 It is a partial enlarged view of the present utility model. DETAILED DESCRIPTION

[0012] The present invention will now be further described with reference to the accompanying drawings.

[0013] See also Figure 1 、 Figure 2 The utility model is a device for detecting the forward and reverse directions of a shock absorber buffer block, comprising a frame, a sensor mounting bracket, a laser ranging sensor, and a PLC control unit. A PLC control unit 4 is installed on the front middle side of a frame 1. The top of the frame 1 is fixed to one end of a sensor mounting bracket 6. A laser ranging sensor 1 2 and a laser ranging sensor 2 3 are installed on the other end of the sensor mounting bracket 6. A shock absorber 7 with a buffer block 8 is located directly below the laser ranging sensor 1 2 and the laser ranging sensor 2 3. An end portion of a laser track 1 21 of the laser ranging sensor 1 2 is located at an edge position of the top of the buffer block 8 near the outer ring, and an end portion of a laser track 2 31 of the laser ranging sensor 2 3 is located at an edge position of the top of the buffer block 8 near the inner ring. The signal output end of the laser ranging sensor 1 2 and the signal output end of the laser ranging sensor 2 3 are respectively connected to two signal input ends of the PLC control unit 4.

[0014] To facilitate installation, the bottom of the frame 1 is connected to the horizontal side of the triangular fixing frame 5, and the vertical surface of the triangular fixing frame 5 is fixed to the wall or the side of the equipment.

[0015] The laser track 21 is a straight line starting from the laser emission end of the laser ranging sensor 2 and ending at the edge position of the top of the buffer block 8 close to the outer ring.

[0016] The second laser track 31 is a straight line starting from the laser emitting end of the second laser distance measuring sensor 3 and ending at the edge position of the top of the buffer block 8 close to the inner circle.

[0017] Since the shape of the buffer block 8 is flat at one end and pointed at the other end, when it is installed reversely or abnormally, the outer ring edge and inner ring edge of the buffer block 8 are measured respectively by laser ranging sensor 1 2 and laser ranging sensor 2 3. The measurement values ​​of the two laser ranging sensors are significantly different from those when they are installed correctly.

[0018] The utility model discloses before working, according to the experience value and actual measurement data, the correct installation and the incorrect installation of buffer block are installed the numerical value to PLC control unit 4.

[0019] The utility model discloses when working, the tester places the damper 7 of installing buffer block 8 to the designated position, such as the positioning tool of detection equipment. Then laser ranging sensor one 2, laser ranging sensor two 3 work, and the measurement value that will be gathered is transferred to PLC control unit 4, if the measurement value of laser ranging sensor one 2, laser ranging sensor two 3 are all in the range set, then judge buffer block 8 installation is correct, and damper 7 product is qualified, if the measurement value of laser ranging sensor one 2 or laser ranging sensor two 3 any one exceeds the range set, then judge buffer block 8 exists reverse installation, non-normal installation, and damper 7 product is unqualified. Subsequently, PLC control unit 4 can judge whether to release according to different signals.

[0020] The utility model discloses through two laser ranging sensor measurement sensor to the distance of buffer block inside and outside, thereby accurately judging the position and positive and negative of buffer block, avoids wrong detection, and in a certain extent, reduces the labor intensity of worker, and reduces the possibility of defective product flow.

Claims

1. A shock absorber bumper block positive and negative detection device, comprising a frame, a sensor mounting bracket, a laser ranging sensor, a PLC control unit, characterized in that: The middle part of the frame (1) is provided with a PLC control unit (4), one end of the sensor mounting bracket (6) is fixed to the top of the frame (1), the other end of the sensor mounting bracket (6) is provided with a laser ranging sensor one (2) and a laser ranging sensor two (3), a shock absorber (7) provided with a buffer block (8) is located directly below the laser ranging sensor one (2) and the laser ranging sensor two (3), the end of the laser track one (21) of the laser ranging sensor one (2) is located at the edge position near the outer ring on the top of the buffer block (8), the end of the laser track two (31) of the laser ranging sensor two (3) is located at the edge position near the inner ring on the top of the buffer block (8), the signal output end of the laser ranging sensor one (2) and the signal output end of the laser ranging sensor two (3) are connected with two signal input ends of the PLC control unit (4) respectively.

2. The shock absorber bumper block positive and negative detection device according to claim 1, characterized in that: The bottom of the frame (1) is connected with the horizontal edge of the triangular fixed frame (5), and the vertical surface of the triangular fixed frame (5) is fixed to the side of the wall or the equipment.

3. The shock absorber bumper block positive and negative detection device according to claim 1, characterized in that: The laser track one (21) is a straight line with the laser emission end of the laser ranging sensor one (2) as the starting point and the edge position near the outer ring on the top of the buffer block (8) as the ending point.

4. The shock absorber bumper block positive and negative detection device according to claim 1, characterized in that: The laser track two (31) is a straight line with the laser emission end of the laser ranging sensor two (3) as the starting point and the edge position near the inner ring on the top of the buffer block (8) as the ending point.

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