CN111307082A - A kind of bearing ring detection control method and system - Google Patents

Abstract

The invention relates to a bearing ring detection control method, which is suitable for a bearing ring detection device, wherein the detection device comprises a detection position of a pressing plate for placing a workpiece to be detected, the pressing plate moves back and forth relative to the detection position, and the control method comprises the following steps: s11, judging whether the workpiece to be detected reaches a detection position; s12, if the workpiece to be detected reaches the detection position, controlling the pressure plate to move towards the workpiece to be detected; s13, reading the inner diameter air pressure value of the two ends of the workpiece to be detected in a clamping state; s14, judging the workpiece to be a qualified piece or an unqualified piece according to the inner diameter air pressure value; s15, distributing the detected workpieces according to qualified parts or unqualified parts; and S16, controlling the pressure plate to return to the original position. The control system and the control method provided by the invention can realize automatic detection of the parallelism and the height of the bearing ring of the workpiece to be detected, namely the bearing ring, and distinguish qualified parts and unqualified parts according to the detection result, so that the qualified parts and the unqualified parts are shunted.

Description

A kind of bearing ring detection control method and system

technical field

The invention relates to the technical field of bearing production, in particular to a bearing ring detection and control method and system.

Background technique

There are many processes in the production process of bearing rings, and it is easy to produce products with excessive size or substandard parallelism. Such products flow out to customers, which may cause serious consequences, such as damage to customer machines. Existing control methods mostly rely on experienced workers for size and appearance inspection. Due to the continuous increase in output, this method requires more manpower and material resources. However, due to the uneven level of workers, there are a large number of missed inspections or incorrect inspections. the target situation.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve the problems existing in the prior art, such as the high cost of manpower detection, and the easy occurrence of missed detection or failure to meet the standard. The present invention provides a bearing ring detection and control method and system.

The present invention achieves the above objects through the following technical solutions: a bearing ring detection and control method, suitable for a bearing ring detection device, the detection device comprises a detection position of a pressure plate for placing a workpiece to be inspected, and the pressure plate is relatively front and rear of the detection position moving, the control method includes:

S11. Determine whether the workpiece to be inspected reaches the inspection position;

S12, if the workpiece to be inspected reaches the detection position, the control platen moves to the workpiece to be inspected;

S13. Read the air pressure value of the inner diameter when both ends of the workpiece to be inspected are clamped;

S14. Determine whether the workpiece is a qualified or unqualified piece according to the air pressure value of the inner diameter;

S15. Divide the tested workpieces according to qualified or unqualified parts;

S16, control the pressing plate to return to the original position.

Further, before step S15, it also includes:

S23. Read the moving distance of the pressing plate when both ends of the workpiece to be inspected are in a clamped state;

S24, according to the moving distance of the pressing plate, determine whether the workpiece is a qualified or unqualified piece.

The application also provides a bearing ring detection and control system, which is suitable for a bearing ring detection device. The bearing ring detection device includes a panel. The panel is provided with a detection position and a fixed base. The fixed base is fixed on the panel, and the fixed base is above the fixed base. There is a carriage, one end of the carriage is fixedly connected with the pressing plate, and the other end is fixedly connected with the driving device. The driving device drives the carriage to move back and forth on the fixed base, and drives the pressing plate to move at the same time. The workpiece to be inspected is located between the baffle and the pressing plate. The control system includes: a first detection device for detecting whether the workpiece to be tested has reached the detection position, and when the workpiece to be tested reaches the detection position, a first detection signal is sent to the controller; a parallelism detection device is used to detect two workpieces. The parallelism of the end face includes: an air-sealed air inlet, which is arranged on the pressure plate, passes through the pressure plate, and is opposite to the inner diameter of the workpiece to be inspected; a pneumatic digital display pressure switch is connected to the air-sealed air inlet and is used for Detecting the internal air pressure of the workpiece to be inspected during the movement of the platen; a driving device for driving the moving assembly to drive the platen to move back and forth on the carriage; a control unit for receiving the first detection signal from the first detection device, and controlling The driving device moves forward. When the pressure plate reaches the detection position, the driving device is controlled to stop moving. At this time, the detection signal of the pneumatic digital pressure switch is read, and the workpiece is judged as a qualified part according to the detection signal of the pneumatic digital pressure switch. or unqualified parts; control the drive device to return to its original position after the inspection is completed.

Further, the pressing plate is fixedly connected to the carriage through an L-shaped connecting seat; the air-tight air inlet is arranged on the side plate of the L-shaped connecting seat, communicates with the pressing plate, and is opposite to the inner diameter of the workpiece to be inspected.

Further, the driving device includes a cylinder, a magnetic induction sensor SQ6 and a magnetic induction sensor SQ7 are arranged on the moving path of the cylinder rod, the cylinder is electrically connected with a solenoid valve, and the magnetic induction sensor SQ6, the magnetic induction sensor SQ7 and the solenoid valve are all It is electrically connected to the control unit; when the cylinder reaches the magnetic induction sensor SQ6, it stops moving forward, and when the cylinder reaches the magnetic induction sensor SQ7, it stops moving backward.

Further, the detection device is provided with a micrometer bracket and a detection fixing block, the micrometer bracket is fixedly connected with the fixed base, and the detection fixing block is fixedly connected with the carriage; On the micrometer bracket, the micrometer head of the micrometer is offset with the detection fixing block; the micrometer is connected to the control unit, and the control unit receives the detection signal from the micrometer, and according to the micrometer The detection signal judges whether the workpiece is qualified or unqualified.

Compared with the prior art, the substantial effect of the present invention is as follows: the control system and control method provided by the present invention can realize the automatic detection of the parallelism and height of the workpiece to be tested, that is, the bearing ring, and distinguish between qualified and unqualified parts according to the detection results. Qualified parts are divided into qualified and unqualified parts.

Description of drawings

FIG. 1 is a schematic diagram 1 of a bearing ring detection device of the present invention.

FIG. 2 is a schematic diagram 2 of the bearing ring detection device of the present invention.

FIG. 3 is a block diagram of the control system of the bearing ring detection device of the present invention.

FIG. 4 is a flow chart of the control method of the bearing ring detection device of the present invention.

Fig. 5 is the connection diagram of the micrometer, the pneumatic digital pressure switch and the control unit of the present invention.

In the picture: 1. Workpiece to be inspected, 2. Inverted L-shaped seat block, 3. Connecting plate, 4. Baffle seat, 5. Baffle plate, 6. Fixed base, 7. Guide rail slider, 8. Linear guide rail, 9 , Cylinder base, 10, Cylinder, 11, Cylinder connecting rod, 12, L connection seat, 13, Carriage plate, 14, L-shaped connection seat, 15, Pressure plate, 16, SQ6, 17, SQ7, 20, Micrometer, 21. Micrometer bracket, 22. Detection fixing block, 25. Airtight air inlet.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings:

As shown in Figures 1-5, a bearing ring detection device, the bearing ring detection device includes: a panel, a fixed component, a baffle 5, a pressure plate 15, a moving component, a parallelism detection device, a control unit 27 and a workpiece shunt components. The control unit can be realized by PLC.

The panel is provided with a cavity adapted to the size of the pressure plate 15, the baffle 5 and the workpiece 1 to be inspected are located on one side of the cavity, the baffle 5 is in contact with one end of the workpiece 1 to be inspected, and the pressure plate 15 and the moving assembly are located on the other side of the cavity. side. When the workpiece is inspected, the moving component drives the pressing plate 15 to move toward the cavity until the pressing plate 15 abuts against the other end of the workpiece 1 to be inspected. When the workpiece is detected, the moving component drives the pressing plate 15 to move away from the cavity to release the workpiece.

The fixing assembly includes an inverted L-shaped seat block 22 and a connecting plate 3. The left side of the inverted L-shaped seat block 22 is fixed on the inner side of the panel, and the upper surface is flush with the bottom of the cavity. The connecting plate 3 passes through the cavity, and the lower surface of one end located on the inner side of the cavity is fixedly connected to the upper surface of the inverted L-shaped seat block 22, and the end located on the outer side of the cavity is provided with a baffle seat 4, and the upper surface of the baffle seat 4 can be arc-shaped concave. A groove or a V-shaped groove, a groove can be set in the middle of the baffle seat 4 along the vertical direction, the groove divides the baffle seat 4 into left and right parts, the baffle 5 is fixed in the groove, and the workpiece 1 to be inspected is placed on the baffle On the right half of the seat 4 , the width of the right half of the baffle seat 4 is at least half the height of the workpiece 1 to be inspected, so that the workpiece 1 to be inspected can be stably mounted on the baffle seat 4 . In addition, the baffle 5 can also be directly fixed on the outer side of the baffle seat 4 , and there is no need to provide a groove on the baffle seat 4 . The relative position of the baffle 5 and the baffle seat 4 is the detection position where the workpiece 1 to be inspected is placed.

The workpiece 1 to be inspected reaches the baffle seat 4 through an inclined feeding channel. The structure of the feeding channel has been disclosed in other patents, and will not be repeated here. The upper left of the baffle seat 4 is provided with an incoming material positioning swing rod. Ensure the position of the workpiece 1 to be inspected on the baffle seat 4, and at the same time play the role of replacing the inspected workpiece and the uninspected workpiece.

The moving assembly is used to drive the pressing plate 15 to move forward and backward, including: the fixed base 6 , the carriage 13 and the sliding assembly. The fixed base 6 is fixedly connected to the upper surface of the first end of the connecting plate 3; The cylinder 10 is mounted on the cylinder base 9 , and the cylinder base 9 is fixed on the fixed base 6 . The air-tight air inlet 25 is arranged on the left side plate of the L-shaped connecting seat 14, passes through the pressing plate 15, and is opposite to the inner diameter of the workpiece 1 to be inspected; the sliding component is arranged between the carriage 13 and the fixed base 6; Under driving, the carriage 13 moves relative to the fixed base 6 through the sliding assembly, so that the pressing plate 15 abuts against the rear end surface of the workpiece 1 to be inspected. The sliding assembly includes a guide rail slider 7 and a linear guide rail 8. The bottom of the carriage 13 is fixedly connected to the upper surface of the guide rail slider 7. The linear guide rail 8 is arranged between the lower surface of the guide rail slider 7 and the fixed base 6. The carriage 13 drives the guide rail to slide. The block 7 moves on the fixed base 6 along the linear guide 8 .

The workpiece shunting assembly is arranged at the rear end of the baffle seat 4, and according to the judgment result of the control unit 27, the detected workpieces are shunted according to qualified and unqualified. The structure and shunting method of the workpiece shunting assembly have also been disclosed in other patents. , which will not be repeated here.

The device can also detect the height of the workpiece, including a height detection device, including a micrometer bracket 21 and a detection fixing block 22 . The micrometer bracket 21 is fixedly connected to the fixed base 6 . The detection fixing block 22 is fixedly connected with the carriage 13 and moves with the carriage 13 .

The control system for controlling the bearing ring detection device includes: a first detection device, a parallelism detection device, a micrometer, a driving device, and a control unit 27 .

The first detection device is used to detect whether the workpiece to be tested reaches the detection position, and is electrically connected to the control unit 27, and when the workpiece to be tested 1 reaches the detection position, it sends a first detection signal to the controller.

The parallelism detection device is used to detect the parallelism of the bearing ring, and sends the detection result to the control unit 27 for judgment. The parallelism detection device includes a hermetically sealed air inlet 25 , a pneumatic digital pressure switch 26 and a control unit 27 . The air-tight air inlet 25 is arranged on the left side plate of the L-shaped connecting seat 14, passes through with the pressing plate 15, and is opposite to the inner diameter of the workpiece 1 to be inspected; the pneumatic digital display pressure switch 26 is connected with the air-tight air inlet 25, and when When the rear end surface of the workpiece 1 to be inspected abuts against the pressing plate 15 , the air pressure inside the workpiece 1 to be inspected is detected through the air-tight air inlet 25 . When the two ends of the workpiece 1 to be inspected collide with the baffle 5 and the pressure plate 15 respectively, the air pressure inside the workpiece will change. At this time, the pneumatic digital pressure switch 26 detects the air pressure value inside the workpiece through the air-sealed air inlet 25, and adjusts the air pressure inside the workpiece. The detected air pressure value is sent to the control unit 27, and the control unit 27 stores the critical pressure value of the parallelism qualified product and the parallelism unqualified product, by comparing the detected air pressure value inside the workpiece with the critical pressure value, It can be judged whether the workpiece is qualified or unqualified.

The control unit 27 receives the first detection signal from the first detection device, and controls the driving device to move forward. When the pressure plate reaches the detection position, the control unit 27 controls the driving device to stop moving. At this time, the detection signal of the pneumatic digital display pressure switch 26 is read, and According to the detection signal of the pneumatic digital display pressure switch 26, it is judged whether the workpiece is a qualified part or an unqualified part; after the detection is completed, the drive device is controlled to return to the original position.

A magnetic induction sensor SQ6 and a magnetic induction sensor SQ7 are arranged on the moving path of the cylinder rod. The cylinder is electrically connected to a solenoid valve YV6. The magnetic induction sensor SQ6, the magnetic induction sensor SQ7 and the solenoid valve YV6 are all electrically connected to the control unit 27. When the cylinder reaches the magnetic induction sensor SQ6, it stops moving forward, and when the cylinder reaches the magnetic induction sensor SQ7, it stops moving backward.

The micrometer head of the micrometer 20 is always in contact with the detection fixing block 22 . The micrometer 20 detects and detects the moving distance of the fixed block 22 , that is, the pressure plate, through the micrometer head. The micrometer 20 is connected to the control unit 27, and sends the detected fixed block 22, that is, the moving distance of the pressure plate, to the control unit 27 as a detection signal. The control unit 27 stores the height dimension and the error range of the standard part. By comparing the detection signal of the micrometer 20 with the height dimension and the error range of the standard part, it can be judged whether the workpiece is a qualified or unqualified piece.

The control method adopted by the bearing ring detection control system, as shown in Figure 4, includes:

S11. Determine whether the workpiece to be inspected reaches the inspection position;

When the first detection device detects that a workpiece arrives at the detection position, the first detection device sends a first detection signal to the control unit 27; the first detection device has many choices, which can be detected by installing a sensor at the detection position, or It is an infrared light detection device. When a workpiece reaches the detection position, the infrared light detection device sends a first detection signal to the control unit 27. In this embodiment, the selection and installation position of the first detection device are not limited, as long as accurate detection can be achieved. It can be detected.

S12, if the workpiece to be inspected reaches the detection position, the control platen moves to the workpiece to be inspected;

When the control unit 27 receives the first detection signal from the first detection device, it means that a workpiece has reached the detection position, and at this time, the control device controls the cylinder to advance toward the platen side;

S13. Read the air pressure value of the inner diameter when both ends of the workpiece to be inspected are clamped;

When the cylinder rod reaches the magnetic induction sensor SQ6, the solenoid valve YV6 is closed, the cylinder drives the pressure plate to stop moving forward, and the workpiece to be tested is in the clamped state between the baffle plate and the pressure plate. At this time, the control unit 27 reads the pneumatic digital display pressure switch 26 to detect The inner diameter air pressure value;

S14, according to the inner diameter air pressure value to judge whether the workpiece is qualified or unqualified;

S24, read the moving distance of the pressing plate when both ends of the workpiece to be inspected are in a clamped state;

Here the moving distance of the platen corresponds to the change of the micrometer;

S25. According to the moving distance of the pressing plate, determine whether the workpiece is a qualified or unqualified piece;

It can be done with the help of the workpiece shunt assembly;

S15. Divide the tested workpieces according to qualified or unqualified parts;

S16. Control the pressing plate to return to its original position;

The control unit 27 controls the cylinder to retreat, and when the cylinder rod reaches the magnetic induction sensor SQ7, the cylinder drives the pressure plate to stop retreating, and the pressure plate returns to its original position at this time.

The foregoing has shown and described 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 by the above-mentioned embodiments, and the descriptions in the above-mentioned embodiments and the description are only to illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have Various changes and modifications fall within the scope of the claimed invention.

Claims (6)

1. The bearing ring detection control method is suitable for a bearing ring detection device, the detection device comprises a detection position of a pressing plate, wherein the detection position is used for placing a workpiece to be detected, and the pressing plate moves back and forth relative to the detection position, and the control method is characterized by comprising the following steps of: s11, judging whether the workpiece to be detected reaches a detection position; s12, if the workpiece to be detected reaches the detection position, controlling the pressure plate to move towards the workpiece to be detected; s13, reading the inner diameter air pressure value of the two ends of the workpiece to be detected in a clamping state; s14, judging the workpiece to be a qualified piece or an unqualified piece according to the inner diameter air pressure value; s15, distributing the detected workpieces according to qualified parts or unqualified parts; and S16, controlling the pressure plate to return to the original position.

2. The bearing ring detection control method according to claim 1, further comprising, before step S15: s23, reading the moving distance of the pressure plate when the two ends of the workpiece to be detected are in a clamping state; and S24, judging the workpiece to be a qualified piece or an unqualified piece according to the moving distance of the pressure plate.

3. The utility model provides a bearing ring detection control system, is applicable to bearing ring detection device, and bearing ring detection device includes the panel, is equipped with on the panel and detects position and unable adjustment base, and unable adjustment base fixes on the panel, and the unable adjustment base top is equipped with the planker, and the one end and the clamp plate fixed connection of planker wait to examine the work piece and lie in between baffle and the clamp plate, its characterized in that, control system includes: the first detection device is used for detecting whether the workpiece to be detected reaches a detection position or not, and sending a first detection signal to the controller when the workpiece to be detected reaches the detection position; parallelism detection device for detecting the parallelism of work piece both ends face includes: the air inlet is arranged on the pressing plate, is communicated with the pressing plate and is opposite to the inner diameter of the workpiece to be detected; the pneumatic digital display pressure switch is connected with the air-tight air inlet and used for detecting the air pressure in the workpiece to be detected in the moving process of the pressure plate; the driving device is used for driving the pressing plate to move back and forth relative to the carriage; the control unit is used for receiving a first detection signal from the first detection device, controlling the driving device to move forwards, controlling the driving device to stop moving when the pressing plate reaches a detection position, reading a detection signal of the pneumatic digital display pressure switch at the moment, and judging whether the workpiece is a qualified workpiece or an unqualified workpiece according to the detection signal of the pneumatic digital display pressure switch; and controlling the driving device to return to the original position after the detection is finished.

4. The bearing ring control system as claimed in claim 3, wherein said pressure plate is fixedly connected to said carriage by an L-shaped connecting seat; the air-tight air inlet is arranged on the L-shaped connecting seat side plate, is communicated with the pressing plate and is opposite to the inner diameter of the workpiece to be detected.

5. The bearing ring control system as claimed in claim 3, wherein the driving means is an air cylinder, a magnetic induction sensor SQ6 and a magnetic induction sensor SQ7 are provided on a moving path of a rod of the air cylinder, the air cylinder is electrically connected with a solenoid valve, and the magnetic induction sensor SQ6, the magnetic induction sensor SQ7 and the solenoid valve are electrically connected with the control unit; when the cylinder reaches the magnetic induction sensor SQ6, the forward movement is stopped, and when the cylinder reaches the magnetic induction sensor SQ7, the backward movement is stopped.

6. The bearing ring control system as claimed in claim 3, wherein the detection device is provided with a micrometer bracket and a detection fixing block, the micrometer bracket is fixedly connected with the fixing base, and the detection fixing block is fixedly connected with the carriage; the control system also comprises a micrometer, the micrometer is arranged on the micrometer bracket, and a micrometer head of the micrometer is abutted against the detection fixed block; the micrometer is connected with the control unit, and the control unit receives the detection signal from the micrometer and judges whether the workpiece is a qualified workpiece or an unqualified workpiece according to the detection signal of the micrometer.

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