A bearing ring detection control method and system

Abstract

The application relates to a bearing ring detection control method, which is suitable for a bearing ring detection device. The detection device comprises a detection position of a pressing plate for placing a workpiece to be detected. The pressing plate moves forward and backward relative to the detection position. The control method comprises the following steps: S11, judging whether the workpiece to be detected reaches the detection position; S12, if the workpiece to be detected reaches the detection position, controlling the pressing plate to move towards the workpiece to be detected; S13, reading an inner diameter air pressure value of the workpiece to be detected in a clamped state; S14, judging whether the workpiece is a qualified piece or an unqualified piece according to the inner diameter air pressure value; S15, shunting the detected workpiece according to the qualified piece or the unqualified piece; and S16, controlling the pressing plate to return to the original position. The control system and the control method can realize automatic detection of the parallelism and height of the workpiece to be detected, i.e. the bearing ring, and can distinguish the qualified piece and the unqualified piece according to the detection result, and shunt the qualified piece and the unqualified piece.

Description

Technical Field

[0001] This invention relates to the field of bearing manufacturing technology, and in particular to a method and system for detecting and controlling bearing races. Background Technology

[0002] The machining process for bearing rings involves many steps, making it easy for products to exceed dimensional or parallelism standards. If such products reach customers, they can cause serious consequences, such as damaging their machinery. Current control methods rely heavily on experienced workers to inspect dimensions and appearance. However, with increasing production volumes, this approach requires more manpower and resources. Furthermore, due to varying worker skill levels, numerous instances of missed inspections or substandard products occur. Summary of the Invention

[0003] The purpose of this invention is to solve the problems of high cost of manual inspection and easy omission or substandard inspection in the existing technology. This invention provides a bearing ring inspection control method and system.

[0004] This invention achieves the above objective through the following technical solution: a bearing ring detection control method, applicable to a bearing ring detection device, the detection device including a detection position for placing the workpiece to be inspected on a pressure plate, the pressure plate moving back and forth relative to the detection position, the control method including:

[0005] S11. Determine whether the workpiece to be inspected has reached the detection position;

[0006] S12. If the workpiece to be inspected reaches the detection position, control the pressure plate to move towards the workpiece to be inspected.

[0007] S13. Read the inner diameter air pressure value of the workpiece under clamping condition at both ends;

[0008] S14. Determine whether the workpiece is a qualified or unqualified part based on the inner diameter air pressure value;

[0009] S15. The inspected workpieces are sorted into qualified or unqualified parts;

[0010] S16. Control the pressure plate to return to its original position.

[0011] Furthermore, the procedure prior to step S15 also includes:

[0012] S23. Read the movement distance of the pressure plate when both ends of the workpiece to be inspected are clamped;

[0013] S24. Determine whether the workpiece is qualified or unqualified based on the moving distance of the pressure plate.

[0014] This application also provides a bearing ring detection and control system, applicable to bearing ring detection devices. The bearing ring detection device includes a panel with a detection position and a fixed base. The fixed base is fixed to the panel, and a slide plate is provided above the fixed base. One end of the slide plate is fixedly connected to a pressure plate, and the other end is fixedly connected to a drive device. The drive device drives the slide plate to move back and forth on the fixed base, simultaneously moving the pressure plate. The workpiece to be inspected is located between the baffle and the pressure plate. The control system includes: a first detection device for detecting whether the workpiece to be inspected has reached the detection position; when the workpiece to be inspected reaches the detection position, it sends a first detection signal to the controller; and a parallelism detection device for detecting the parallelism of the two end faces of the workpiece, including... A gas-tight air inlet is located on the pressure plate, communicating with it and corresponding to the inner diameter of the workpiece to be inspected; a pneumatic digital display pressure switch is connected to the gas-tight air inlet and is used to detect the internal air pressure of the workpiece during the movement of the pressure plate; a drive device is used to drive the moving assembly to move the pressure plate back and forth on the slide; a control unit receives the first detection signal from the first detection device and controls the drive device to move forward. When the pressure plate reaches the detection position, the control unit stops moving and reads the detection signal from the pneumatic digital display pressure switch, and determines whether the workpiece is qualified or unqualified based on the detection signal; after the inspection is completed, the control unit returns to its original position.

[0015] Furthermore, the pressure plate is fixedly connected to the slide plate via an L-shaped connecting seat; the airtight air inlet is located on the side plate of the L-shaped connecting seat, communicating with the pressure plate and being opposite to the inner diameter of the workpiece to be inspected.

[0016] Furthermore, the driving device includes a cylinder, and magnetic induction sensors SQ6 and SQ7 are arranged on the cylinder rod movement path. The cylinder is electrically connected to a solenoid valve, and magnetic induction sensors SQ6, SQ7, and the solenoid valve are all electrically connected to the control unit. When the cylinder reaches magnetic induction sensor SQ6, it stops moving forward, and when the cylinder reaches magnetic induction sensor SQ7, it stops moving backward.

[0017] Furthermore, the detection device is equipped with a micrometer bracket and a detection fixing block. The micrometer bracket is fixedly connected to the fixed base, and the detection fixing block is fixedly connected to the slide plate. The control system also includes a micrometer head mounted on the micrometer bracket, which abuts against the detection fixing block. The micrometer is connected to the control unit, which receives the detection signal from the micrometer and determines whether the workpiece is qualified or unqualified based on the detection signal.

[0018] Compared with the prior art, the substantial effects of the present invention are 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, namely the bearing ring, and distinguish between qualified and unqualified parts according to the detection results, and separate qualified and unqualified parts. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the bearing ring testing device of the present invention. Figure 1 .

[0020] Figure 2 This is a schematic diagram of the bearing ring testing device of the present invention. Figure 2 .

[0021] Figure 3 This is a block diagram of the control system for the bearing ring detection device of the present invention.

[0022] Figure 4 This is a flowchart of the control method for the bearing ring detection device of the present invention.

[0023] Figure 5 This is a connection diagram of the micrometer, pneumatic digital pressure switch and control unit of the present invention.

[0024] In the diagram: 1. Workpiece to be inspected; 2. Inverted L-shaped seat block; 3. Connecting plate; 4. Baffle seat; 5. Baffle; 6. Fixed base; 7. Guide rail slider; 8. Linear guide rail; 9. Cylinder base; 10. Cylinder; 11. Cylinder connecting rod; 12. L-shaped connecting seat; 13. Slide plate; 14. L-shaped connecting seat; 15. Pressure plate; 16. SQ6; 17. SQ7; 20. Micrometer; 21. Micrometer bracket; 22. Inspection fixing block; 25. Airtight air inlet. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings:

[0026] like Figures 1-5 As shown, a bearing ring inspection device includes: a panel, a fixing assembly, a baffle 5, a pressure plate 15, a moving assembly, a parallelism inspection device, a control unit 27, and a workpiece diversion assembly. The control unit can be implemented using a PLC.

[0027] A cavity adapted to the size of the pressure plate 15 is formed on the panel. A baffle 5 and the workpiece 1 to be inspected are located on one side of the cavity, with the baffle 5 abutting against one end of the workpiece 1. The pressure plate 15 and the moving assembly are located on the other side of the cavity. During workpiece inspection, the moving assembly moves the pressure plate 15 towards the cavity until it abuts against the other end of the workpiece 1. When the workpiece inspection is complete, the moving assembly moves the pressure plate 15 away from the cavity, releasing the workpiece.

[0028] 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 to the inside of the panel, and its upper surface is flush with the bottom of the cavity. The connecting plate 3 passes through the cavity, and its lower surface at one end inside the cavity is fixedly connected to the upper surface of the inverted L-shaped seat block 22. A baffle seat 4 is provided at one end outside the cavity. The upper surface of the baffle seat 4 can be an arc-shaped groove or a V-shaped groove. A groove can be provided in the middle of the baffle seat 4 along the vertical direction, dividing the baffle seat 4 into left and right parts. A baffle 5 is fixed in the groove. The workpiece 1 to be inspected is placed on the right half of the baffle seat 4. The width of the right half of the baffle seat 4 is at least greater than half the height of the workpiece 1 to ensure that the workpiece 1 to be inspected can be stably placed on the baffle seat 4. Alternatively, the baffle 5 can be directly fixed to the outside of the baffle seat 4 without the need for a groove on the baffle seat 4. The relative position of the baffle 5 and the baffle seat 4 is the inspection position for placing the workpiece 1.

[0029] The workpiece 1 to be inspected reaches the baffle seat 4 through the inclined feeding channel. The structure of the feeding channel has been disclosed in other patents and will not be described in detail here. The upper left of the baffle seat 4 is provided with a material positioning swing rod to ensure the position of the workpiece 1 to be inspected on the baffle seat 4, and at the same time, it plays the role of blocking the replacement of the inspected workpiece and the uninspected workpiece.

[0030] The moving assembly, used to move the pressure plate 15 back and forth, includes a fixed base 6, a slide plate 13, and a sliding assembly. The fixed base 6 is fixedly connected to the upper surface of the first end of the connecting plate 3; the front end of the slide plate 13 is fixedly connected to the pressure plate 15 via an L-shaped connecting seat 14, and the rear end of the slide plate 13 is fixedly connected to the cylinder connecting rod 11 via an L-shaped connecting seat 12. The cylinder 10 is mounted on the cylinder base 9, which is fixed to the fixed base 6. The airtight air inlet 25 is located on the left side plate of the L-shaped connecting seat 14, communicating with the pressure plate 15 and opposite to the inner diameter of the workpiece 1 to be inspected; the sliding assembly is located between the slide plate 13 and the fixed base 6; driven by the cylinder 10, the slide plate 13 moves relative to the fixed base 6 via the sliding assembly, causing the pressure plate 15 to abut against the rear end face 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 slide plate 13 is fixedly connected to the upper surface of the guide rail slider 7. The linear guide rail 8 is disposed between the lower surface of the guide rail slider 7 and the fixed base 6. The slide plate 13 drives the guide rail slider 7 to move along the linear guide rail 8 on the fixed base 6.

[0031] The workpiece diversion assembly is located at the rear end of the baffle seat 4. Based on the judgment result of the control unit 27, the inspected workpieces are diverted into qualified and unqualified categories. The structure and diversion method of the workpiece diversion assembly have been disclosed in other patents and will not be described in detail here.

[0032] This device can also detect workpiece height, including a height detection unit comprising 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 to the slide plate 13 and moves with the slide plate 13.

[0033] The control system for the bearing ring inspection device includes: a first inspection device, a parallelism inspection device, a micrometer, a drive device, and a control unit 27.

[0034] The first detection device is used to detect whether the workpiece to be tested has reached the detection position. It is electrically connected to the control unit 27. When the workpiece to be tested 1 reaches the detection position, it sends a first detection signal to the controller.

[0035] The parallelism detection device is used to detect the parallelism of the bearing rings and sends the detection results to the control unit 27 for judgment. The parallelism detection device includes an air-tight inlet 25, a pneumatic digital display pressure switch 26, and a control unit 27. The air-tight inlet 25 is located on the left side plate of the L-shaped connecting seat 14, communicating with the pressure plate 15 and corresponding to the inner diameter of the workpiece 1 to be inspected; the pneumatic digital display pressure switch 26 is connected to the air-tight inlet 25, and when the rear end face of the workpiece 1 to be inspected abuts against the pressure plate 15, the internal air pressure of the workpiece 1 to be inspected is detected through the air-tight inlet 25. When the two ends of the workpiece 1 to be inspected abut against the baffle 5 and the pressure plate 15 respectively, the internal air pressure of the workpiece will change. At this time, the pneumatic digital display pressure switch 26 detects the internal air pressure value of the workpiece through the airtight air inlet 25 and sends the detected air pressure value to the control unit 27. The control unit 27 stores the critical pressure value between parallelism qualified products and parallelism unqualified products. By comparing the detected internal air pressure value of the workpiece with the critical pressure value, it can be determined whether the workpiece is qualified or unqualified.

[0036] The control unit 27 receives the first detection signal from the first detection device and controls the drive device to move forward. When the pressure plate reaches the detection position, the control unit stops moving. At this time, the control unit reads the detection signal of the pneumatic digital display pressure switch 26 and determines whether the workpiece is qualified or unqualified based on the detection signal of the pneumatic digital display pressure switch 26. After the detection is completed, the control unit controls the drive device to return to its original position.

[0037] Magnetic induction sensors SQ6 and SQ7 are installed along the movement path of the cylinder rod. The cylinder is electrically connected to a solenoid valve YV6. Magnetic induction sensors SQ6 and SQ7, as well as solenoid valve YV6, are all electrically connected to control unit 27. When the cylinder reaches magnetic induction sensor SQ6, it stops moving forward; when the cylinder reaches magnetic induction sensor SQ7, it stops moving backward.

[0038] The micrometer head of the micrometer 20 is always in contact with the detection fixing block 22. The micrometer 20 detects the movement distance of the detection fixing block 22, i.e., the pressure plate, through the micrometer head. The micrometer 20 is connected to the control unit 27 and sends the detected movement distance of the detection fixing block 22, i.e., the pressure plate, as a detection signal to the control unit 27. The control unit 27 stores the height dimension and error range of the standard part. By comparing the detection signal of the micrometer 20 with the height dimension and error range of the standard part, it can be determined whether the workpiece is qualified or unqualified.

[0039] The control methods used in the bearing ring inspection and control system, such as Figure 4 As shown, it includes:

[0040] S11. Determine whether the workpiece to be inspected has reached the detection position;

[0041] When the first detection device detects that a workpiece has arrived at the detection position, the first detection device sends a first detection signal to the control unit 27. There are many options for the first detection device. It can be implemented by installing a sensor at the detection position, or it can be an infrared light detection device. When a workpiece arrives at 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.

[0042] S12. If the workpiece to be inspected reaches the detection position, control the pressure plate to move towards the workpiece to be inspected.

[0043] When the control unit 27 receives the first detection signal from the first detection device, it means that a workpiece has arrived at the detection position. At this time, the control device controls the cylinder to move forward towards the pressure plate side.

[0044] S13. Read the inner diameter air pressure value of the workpiece under clamping condition at both ends;

[0045] When the cylinder rod reaches the magnetic induction sensor SQ6, the solenoid valve YV6 closes, the cylinder drives the pressure plate to stop moving forward, and the workpiece to be tested is in the clamping state of the baffle and the pressure plate. At this time, the control unit 27 reads the inner diameter air pressure value detected by the pneumatic digital display pressure switch 26.

[0046] S14. Determine whether the workpiece is qualified or unqualified based on the inner diameter air pressure value;

[0047] S24. Read the movement distance of the pressure plate when both ends of the workpiece to be inspected are clamped;

[0048] The moving distance of the pressure plate corresponds to the change in the micrometer.

[0049] S25. Determine whether the workpiece is qualified or unqualified based on the moving distance of the pressure plate;

[0050] This can be accomplished with the help of a workpiece diversion assembly;

[0051] S15. The inspected workpieces are sorted into qualified or unqualified parts;

[0052] S16. Control the pressure plate to return to its original position;

[0053] Control unit 27 controls the cylinder to retract. When the cylinder rod reaches the magnetic induction sensor SQ7, the cylinder drives the pressure plate to stop retracting, and the pressure plate returns to its original position.

[0054] 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 to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A bearing ring detection control method, applicable to a bearing ring detection device, the detection device comprising a detection position of a pressing plate for placing a workpiece to be detected, the pressing plate moving back and forth relative to the detection position, characterized in that, The control method comprises: 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 pressing plate to move to the workpiece to be detected; S13, reading the inner diameter air pressure value when the two ends of the workpiece to be detected are in the clamped state; S14, judging whether the workpiece is a qualified piece or an unqualified piece according to the inner diameter air pressure value; S15, shunting the detected workpiece according to the qualified piece or the unqualified piece; S16, controlling the pressing plate to return to the original position; and the control system for controlling the bearing ring detection device. The control system comprises a parallelism detection device, a driving device and a control unit. The parallelism detection device comprises an air-tight inlet, a pneumatic digital display pressure switch and a control unit; the air-tight inlet is arranged on the left side plate of the L-shaped connecting seat, penetrates 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 inlet; when the rear end surface of the workpiece to be detected abuts against the pressing plate, the internal air pressure of the workpiece to be detected is detected through the air-tight inlet; when the two ends of the workpiece to be detected abut against the baffle and the pressing plate respectively, the internal air pressure of the workpiece to be detected changes; at this time, the pneumatic digital display pressure switch detects the internal air pressure value of the workpiece to be detected through the air-tight inlet and sends the detected air pressure value to the control unit; the control unit stores the critical pressure values of the qualified product and the unqualified product; by comparing the detected internal air pressure value of the workpiece with the critical pressure values, it is judged whether the workpiece is a qualified piece or an unqualified piece. The detection device is provided with a micrometer support and a detection fixed block; the micrometer support is fixedly connected with the fixed base; and the detection fixed block is fixedly connected with the sliding plate. The control system further comprises a micrometer which is installed on the micrometer support and whose micrometer head abuts against the detection fixed block; the micrometer detects the moving distance of the detection fixed block, i.e. the pressing plate, through the micrometer head; the micrometer is connected with the control unit and sends the detected moving distance of the detection fixed block, i.e. the pressing plate, to the control unit as a detection signal; the control unit stores the height size and error range of the standard piece; by comparing the detection signal of the micrometer with the height size and error range of the standard piece, it is judged whether the workpiece is a qualified piece or an unqualified piece. The pressing plate is fixedly connected with the sliding plate through the L-shaped connecting seat; and the air-tight inlet is arranged on the side plate of the L-shaped connecting seat, penetrates the pressing plate and is opposite to the inner diameter of the workpiece to be detected.

2. A bearing ring inspection control method as claimed in claim 1, characterized in that Before the step S15, the method further comprises: S23, reading the moving distance of the pressing plate when the two ends of the workpiece to be detected are in the clamped state; and S24, judging whether the workpiece is a qualified piece or an unqualified piece according to the moving distance of the pressing plate.

3. The bearing ring inspection control method of claim 1, wherein The driving device is a pneumatic cylinder; a magnetic induction sensor SQ6 and a magnetic induction sensor SQ7 are arranged on the moving path of the pneumatic cylinder rod; the pneumatic cylinder is electrically connected with an electromagnetic valve; the magnetic induction sensor SQ6, the magnetic induction sensor SQ7 and the electromagnetic valve are electrically connected with the control unit; when the pneumatic cylinder reaches the magnetic induction sensor SQ6, the forward movement is stopped; and when the pneumatic cylinder reaches the magnetic induction sensor SQ7, the backward movement is stopped.

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