Mechanism and method for identifying assembly of studs on brake valve

Abstract

The invention provides a mechanism and method for identifying assembly of studs on a brake valve. The double-end bolt assembly identification mechanism on the brake valve comprises a feeding track connected with a vibration disc and a PLC control system, and a color sensor and an air cylinder are sequentially arranged beside the feeding track. The short end of the stud is provided with pre-coated blue thread fastening glue; a piston rod of the air cylinder extends into the feeding groove; a material receiving box is arranged below the feeding rail, and a material leakage opening of the material receiving box is communicated with an inner discharging cavity of the vibration disc. According to the recognition method, the short end of the stud is judged according to different reflection values of a light source emitted by a color sensor at the long end and the short end, for example, the long end of the stud abuts against a piston rod of an air cylinder, the piston rod of the air cylinder retracts and then stretches out to knock down the stud into a material receiving box, and then the stud falls into an internal discharging cavity of a vibration disc; if the short end of the stud abuts against the extending rod of the air cylinder, the piston rod of the air cylinder retracts, and the stud is released.

Description

Technical Field

[0001] The invention belongs to the field of automatic intelligent assembly of stud bolts on automobile brake valves and relates to an assembly identification mechanism and an identification method for stud bolts on brake valves. Background Art

[0002] Some automotive brake valves currently have studs installed in four locations. These studs typically have different thread lengths at each end, defined as a long end and a short end. The short end is pre-applied with blue thread locker. The studs are typically removed manually, with the short end (with locker) pre-threaded into the threaded hole in the brake valve assembly before being tightened. This manual process of visually identifying the long and short ends of the studs during assembly can lead to fatigue and errors, making manual stud removal inefficient.

[0003] In order to improve work efficiency, a vibrating plate has been used to feed and convey stud bolts. However, the long and short ends of the stud bolts cannot be identified during the conveying process, and stud bolts with inverted short ends need to be manually screened out, resulting in low feeding efficiency and a waste of labor costs. Summary of the Invention

[0004] In order to identify the long and short ends of stud bolts during the process of feeding and conveying stud bolts using a vibrating plate, avoid feeding stud bolts with inverted short ends, and improve feeding efficiency, the present invention proposes a stud bolt assembly identification mechanism and identification method for brake valves.

[0005] A technical solution for a stud bolt assembly identification mechanism on a brake valve includes: a feeding track connected to a vibration plate, and a PLC control system, characterized in that: a color sensor and a cylinder are sequentially arranged next to the feeding track; The short end of the stud bolt has pre-applied blue thread locking glue, and the color sensor is used to identify the short end of the stud bolt; The piston rod of the cylinder extends into the feeding trough; a receiving box is provided under the feeding track, and the leakage port of the receiving box is communicated with the internal discharge chamber of the vibration plate.

[0006] The PLC control system receives the signal from the color sensor and controls the movement of the cylinder through the signal from the color sensor.

[0007] Furthermore, fiber optic sensors are arranged in sequence next to the feeding trough. The fiber optic sensors are located in front of the color sensor. The fiber optic sensors are used to identify whether the stud bolts are delivered. The PLC control system receives the signal from the fiber optic sensor to further ensure the reliability of the delivery control.

[0008] Furthermore, the same effect can be achieved by using a color camera instead of a color sensor.

[0009] A method for identifying the assembly of stud bolts on a brake valve, comprising the steps of: pouring the stud bolts into a vibrating plate, and feeding the stud bolts along the vibrating plate; the reflection values ​​of the light source emitted by a color sensor at the long end and the short end are different, and the short end of the stud bolt is judged; if the long end of the stud bolt abuts against the piston rod of the cylinder, the piston rod of the cylinder retracts and then extends to knock the stud bolt into a receiving box, and the stud bolt falls into the internal discharge chamber of the vibrating plate through the leakage port of the receiving box; if the short end of the stud bolt abuts against the extending piston rod of the cylinder, the piston rod of the cylinder retracts and releases the stud bolt.

[0010] The beneficial effects of the present invention are as follows: the present invention forms a set of identification mechanisms through a color sensor and a cylinder, which can quickly and correctly identify the long and short ends of the stud bolts, and can be combined with an automatic picking and tightening stud bolt device to realize automatic identification of the long and short ends of the stud bolts, and improve work efficiency, and no longer need to manually screen out stud bolts with inverted short ends. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a structural diagram of a stud bolt assembly identification mechanism on a brake valve in the present invention; Figure 2 The present invention is an electrical block diagram of a stud bolt assembly identification mechanism on a brake valve.

[0012] As shown in the figure: 1. Feeding track, 2. Stud bolt, 3. Cylinder, 4. Color sensor, 5. Fiber optic sensor, 6. Receiving box. DETAILED DESCRIPTION

[0013] The present invention is further described below with reference to the accompanying drawings.

[0014] like Figure 1 、 Figure 2 As shown, a stud bolt assembly identification mechanism on a brake valve includes a feeding track 1 connected to a vibrating disk, a PLC control system, and a fiber optic sensor 5, a color sensor 4, and a cylinder 3 arranged in sequence next to the feeding track; the short end of the stud bolt 2 is pre-coated with blue thread fastener, the color sensor 4 is used to identify the short end of the stud bolt, the fiber optic sensor 5 is located in front of the color sensor 4, and the fiber optic sensor is used to identify whether the stud bolt is delivered; the piston rod 3 of the cylinder extends into the feeding trough; a material receiving box 6 is provided under the feeding track, and the leakage port of the material receiving box 6 is connected to the internal discharge chamber of the vibrating disk.

[0015] The PLC control system receives the signal of the optical fiber sensor and the signal of the color sensor, and controls the movement of the cylinder through the signal of the color sensor.

[0016] In the above embodiment, the optical fiber sensor 5 is optional. The optical fiber sensor is used to identify whether the stud bolts are delivered, thereby further ensuring the reliability of the delivery control.

[0017] In the above embodiment, the same effect can be achieved by using a color camera instead of the color sensor 4 .

[0018] The above-mentioned stud bolt assembly identification mechanism on a brake valve is adopted, and a method for identifying the stud bolt assembly on a brake valve is as follows: the stud bolts are poured into a vibrating disk, and the stud bolts move along the vibrating disk. The color sensor emits a light source with different reflection values ​​at the long end and the short end to judge the short end of the stud bolt. If the long end of the stud bolt is against the piston rod of the cylinder, the piston rod of the cylinder retracts and then extends to knock the stud bolt into the receiving box, and then falls into the internal discharge chamber of the vibrating disk through the leakage port of the receiving box; if the short end of the stud bolt is against the piston rod of the cylinder, the piston rod of the cylinder retracts and releases the stud bolt.

[0019] The key technical point of the present invention is to use a color sensor or a color camera to perform color difference recognition on the blue thread fastener pre-coated on the short end of the stud bolt to complete the identification of the long and short ends of the stud bolt.

Claims

1. A stud bolt assembly identification mechanism for a brake valve, comprising a feed track connected to a vibrating plate and a PLC control system, characterized in that: Beside the feeding track, a color sensor and a cylinder are arranged in sequence; The short end of the stud bolt has pre-applied blue thread locking glue, and the color sensor is used to identify the short end of the stud bolt; The piston rod of the cylinder extends into the feed chute; A material receiving box is provided below the feeding track, and a material leakage port of the material receiving box is communicated with the internal material discharge chamber of the vibrating disk.

2. The PLC control system receives the signal from the color sensor and controls the movement of the cylinder through the signal from the color sensor.

3. The stud bolt assembly identification mechanism for a brake valve according to claim 1, characterized in that: Fiber optic sensors are arranged in sequence next to the feeding trough. The fiber optic sensors are located in front of the color sensor. The fiber optic sensors are used to identify whether the stud bolts are delivered. The PLC control system receives the signals from the fiber optic sensors.

4. A stud bolt assembly identification mechanism for a brake valve according to claim 1 or 2, characterized in that: Use a color camera instead of a color sensor.

5. A method for identifying stud bolts on a brake valve, characterized by: Pour the studs into the vibrating plate, and the studs move along the vibrating plate while feeding. The color sensor uses the different reflection values ​​of the light source at the long and short ends to judge the short end of the studs. If the long end of the studs touches the piston rod of the cylinder, the piston rod of the cylinder retracts and then extends to knock the studs into the receiving box, and then fall into the internal discharge chamber of the vibrating plate through the leakage port of the receiving box; if the short end of the studs touches the extended rod of the small cylinder, the piston rod of the cylinder retracts and releases the studs.

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