Shaft type end face grinding, polishing and detecting system

Abstract

The application relates to an automatic machining device, in particular to an end face grinding, polishing and detecting system for shafts; the device comprises an upper computer control system and a controlled system; the controlled system comprises a feeding system, a pushing system, an end face grinding system, a polishing system and a detecting system; the feeding system sends workpieces to the pushing system according to signals of the upper computer control system; the pushing system pushes the workpieces to the end face grinding system according to signals of the upper computer control system; the end face grinding system performs grinding work on the workpieces according to signals of the upper computer control system; the polishing system performs polishing work on the workpieces according to signals of the upper computer control system; the detecting system performs detection on the workpieces according to signals of the upper computer control system and sends detection data signals to the upper computer control system. The end face grinding, polishing and detecting system for shafts has the advantages of high automation degree and high equipment integration.

Description

Technical Field

[0001] This invention relates to an automated processing and inspection equipment system for shaft-type workpieces, specifically to a shaft end face grinding, polishing, and inspection system. Background Technology

[0002] During the machining process of shaft-type workpieces, the fixtures typically hold them at both ends. Therefore, the end faces need to be ground and the shaft ends polished at the end to complete the machining of the entire workpiece. Furthermore, because shaft-type products operate at high speeds, they require high precision. Shaft-type products also need to undergo multiple inspections before leaving the factory.

[0003] Existing technologies suffer from low integration levels between equipment in various processes, large equipment footprint, and excessively long transfer distances. How to better integrate and control equipment and improve processing and transfer efficiency has become an urgent problem to be solved in high-efficiency automated production. Summary of the Invention

[0004] The present invention aims to provide a shaft end face grinding, polishing and inspection system with a high degree of automation and equipment integration.

[0005] This solution provides a shaft end-face grinding, polishing, and inspection system, comprising a host computer control system and a controlled system. The controlled system includes a feeding system, a pushing system, an end-face grinding system, a polishing system, and an inspection system. The host computer control system receives system control signals, receives feedback signals from the controlled system, and controls the operation of the controlled system. The feeding system is located on one side of the end-face grinding system and feeds the workpiece to the pushing system according to signals from the host computer control system. The pushing system is located on the discharge side of the feeding system and pushes the workpiece to the end-face grinding system according to signals from the host computer control system. The end-face grinding system receives the workpiece from the pushing system and performs grinding operations on the workpiece according to signals from the host computer control system. The polishing system receives the workpiece from the end-face grinding system and performs polishing operations on the workpiece according to signals from the host computer control system. The inspection system receives the workpiece from the polishing system, performs inspection on the workpiece according to signals from the host computer control system, and transmits the inspection data signals to the host computer control system.

[0006] Furthermore, the feeding system includes a first bracket and a feeding cylinder. The first bracket is arranged in front of the discharge port of the feeding system, and the feeding cylinder is located at one end of the first bracket.

[0007] Furthermore, the end face grinding system includes a first clamping mechanism and a grinding mechanism mounted on the equipment frame. The first clamping mechanism includes a first clamp and a first slide. The first clamp is fixedly mounted on the first slide. The center of the first clamp is a through hole, and a collet is provided at the through hole. The first clamp can slide to a position that is in the same straight line as the pushing direction of the first bracket and the pushing cylinder.

[0008] Furthermore, the polishing system includes a second clamping mechanism and a polishing mechanism mounted on the equipment frame. The second clamping mechanism includes a second clamp and a second slide. The second clamp is fixedly mounted on the second slide. The center of the second clamp is a through hole, and a collet is provided at the through hole. The center of the second clamp, the sliding direction of the second clamp, the first bracket, and the pushing direction of the pushing cylinder are all on the same straight line.

[0009] Furthermore, a second bracket is provided between the end face grinding system and the polishing system, and the second bracket, the first bracket, and the pushing direction of the pushing cylinder are on the same straight line.

[0010] Furthermore, a transfer conveyor line is provided between the polishing system and the detection system, a loading robot is provided at the inlet end of the transfer conveyor line, and a laser marking device is provided in the middle of the transfer conveyor line.

[0011] Furthermore, the detection system includes a detection frame and a detection mechanism mounted on a platform of the detection frame. A detection shifting mechanism is provided on one side of the detection mechanism. The detection mechanism includes a rod diameter measurement component, a total length detection component, a runout detection component, and a visual detection component.

[0012] Furthermore, the detection and positioning mechanism includes a vertical slide, an electric gripper mounting plate, and several electric gripping components. The vertical slide is fixedly mounted on the platform, the electric gripper mounting plate is slidably mounted on the vertical slide, and the several electric gripping components are fixedly mounted on the electric gripper mounting plate.

[0013] Furthermore, the testing frame is equipped with a gantry robot and a testing station. The gantry robot is mounted on the platform of the testing frame via a gantry, and the testing station is located on the platform and is used to place the sample.

[0014] Furthermore, there are four electric gripping components, which are evenly spaced and correspond one-to-one with the detection mechanism.

[0015] The advantages of this invention are: the shaft end-face grinding, polishing, and inspection system designed using this scheme can achieve automatic control of shaft workpiece feeding, end-face grinding, and shaft polishing, and perform automatic inspection after processing. In this scheme, the workpiece processing path has been continuously calculated and optimized, the distribution design between various equipment parts is reasonable, the equipment space occupied is greatly reduced, the degree of automation and integration is greatly improved, and the processing efficiency and transfer efficiency are also improved. Attached Figure Description

[0016] Figure 1 This is a top view of the shaft grinding end face, polishing and inspection system of the present invention; Figure 2 This is a schematic diagram of the end face grinding system in the shaft end face grinding, polishing and inspection system of the present invention; Figure 3 This is a schematic diagram of the polishing system in the shaft grinding end face, polishing and inspection system of the present invention; Figure 4 This is a schematic diagram of the detection system in the shaft grinding, polishing and detection system of the present invention.

[0017] Figure 5 This is a schematic diagram of the appearance of the shaft grinding end face, polishing and inspection system of the present invention.

[0018] The reference numerals in the figure include: 1 is the host computer control system; 2 is the feeding system; 3 represents the material pushing system, 3-1 represents the material pushing cylinder, and 3-2 represents the first support. 4 represents the end face grinding system, 4-1 represents the first clamping mechanism, 4-2 represents the grinding mechanism, and 4-3 represents the grinding wheel dressing mechanism; 5 represents the polishing system, 5-1 represents the second clamping mechanism, 5-2 represents the polishing mechanism, and 5-3 represents the second bracket; 6 is the detection system, 6-1 is the detection frame, 6-2 is the detection transposition mechanism, 6-3 is the rod diameter measurement component, 6-4 is the total length detection component, 6-5 is the runout detection component, 6-6 is the vision inspection component, 6-7 is the gantry robot, 6-8 is the test station, 6-21 is the vertical slide, 6-22 is the electric gripper mounting plate, and 6-23 is the electric gripping component; 7 is the transfer conveyor line, 7-1 is the loading robot, 7-2 is the laser marking device, and 7-3 is the air blowing mechanism. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: according to Figures 1 to 5As shown, this solution provides a shaft end-face grinding, polishing, and inspection system. The system includes a host computer control system 1 and a controlled system. The host computer control system 1 receives system control signals, receives feedback signals from the controlled system, and controls the operation of the controlled system. The controlled system includes a feeding system 2, a pushing system 3, an end-face grinding system 4, a polishing system 5, and an inspection system 6.

[0020] The feeding system 2 is located on one side of the end face grinding system 4, and conveys the workpiece to the pushing system 3 according to the signal of the host computer control system 1; specifically, the feeding system 2 adopts a wave-tooth shaft-type stepping feeding mechanism.

[0021] The pushing system 3 is located on one side of the discharge port of the feeding system 2, and pushes the workpiece to the end face grinding system 4 according to the signal of the host computer control system 1. In this embodiment, the pushing system 3 includes a first bracket 3-2 and a pushing cylinder 3-1. The first bracket 3-2 is arranged in front of the discharge port of the feeding system 2, and the pushing cylinder 3-1 is located at one end of the first bracket 3-2.

[0022] The end face grinding system 4 is used to receive the workpiece from the pusher system 3 and perform grinding operations on the workpiece according to the signal from the host computer control system 1. In this embodiment, the end face grinding system 4 includes a first clamping mechanism 4-1 and a grinding mechanism 4-2 mounted on the equipment frame. The first clamping mechanism 4-1 includes a first clamp and a first slide. The first clamp is fixedly mounted on the first slide. The center of the first clamp is a through hole, and a collet is provided at the through hole. The first clamp can slide to a position that is in the same straight line as the pushing direction of the first bracket 3-2 and the pusher cylinder 3-1. In this embodiment, the grinding mechanism 4-2 is driven by a variable frequency motor, and the grinding wheel is made of ceramic CBN.

[0023] The first slide includes a guide rail mounted on the equipment frame and a slide plate slidably mounted on the guide rail. A lead screw nut seat is located at the bottom of the slide plate, and a servo motor is located at one end of the guide rail. The output shaft of the servo motor is fixedly connected to a lead screw shaft via a coupling, and the lead screw shaft rotatably engages with the lead screw nut seat. A first clamping seat is located on the slide plate, and a grinding wheel dressing mechanism 4-3 is also located on one side of the slide plate. The grinding wheel dressing mechanism 4-3 uses a motor and a diamond pen.

[0024] The polishing system 5 is used to receive the workpiece from the end face grinding system 4 and perform polishing operations on the workpiece according to the signal from the host computer control system 1. Specifically, a second bracket 5-3 is provided between the end face grinding system 4 and the polishing system 5, and the second bracket 5-3, the first bracket 3-2 and the pushing direction of the pushing cylinder 3-1 are on the same straight line.

[0025] In this embodiment, the polishing system 5 includes a second clamping mechanism 5-1 and a polishing mechanism 5-2 mounted on the equipment frame. The second clamping mechanism 5-1 includes a second clamp and a second slide. The second clamp is fixedly mounted on the second slide, and the center of the second clamp is a through hole with a collet clamp at the through hole. The center of the second clamp, the sliding direction of the second clamp, the first bracket 3-2, and the pushing direction of the pushing cylinder 3-1 are all on the same straight line. The first clamping mechanism 4-1 and the second clamping mechanism 5-1 have the same structure, both using hydraulic clamping for front and rear material discharge. The first slide and the second slide also have the same structure. The polishing mechanism 5-2 is driven by a variable frequency motor, and the polishing belt is a ceramic abrasive belt.

[0026] In this design, the pushing direction of the pusher cylinder 3-1, the first bracket 3-2, the second bracket 5-3, and the workstation center of the second clamp are all on the same straight line. Furthermore, the first clamp can also move on the first slide to move the workstation center to this straight line. This design eliminates the need for an additional workpiece conveying device or robot. The pusher cylinder 3-1 can directly push the workpiece to be processed into the first clamp via the first bracket 3-2. After the first clamp holds the workpiece, it moves to the grinding mechanism for end-face machining. Then, the first clamp returns to its clamping position. When the pusher cylinder 3-1 pushes the second shaft into the first clamp, the second shaft pushes the first shaft to the second bracket 5-3 and is clamped by the second clamp. At this point, the first shaft continues its polishing operation.

[0027] The first and second clamps adopt a through-structure front and rear discharge collet structure, which can realize the workpiece advancement by pushing and pushing between the shafts. First of all, this not only shortens the process path, reduces the size of the equipment, and saves equipment such as robots, but also plays a role in precision self-checking and error prevention. If the precision of a certain link in this mutual pushing feeding of the workpiece is deviated, it will lead to inaccurate workpiece feeding position, and the collet may not be able to hold the workpiece smoothly. When the production cycle time is set, if the collet does not have a workpiece within a certain period of time, it will transmit the situation command to the upper computer control system 1. The upper computer control system 1 will issue an alarm and control the controlled system to stop operation.

[0028] A transfer conveyor line 7 is provided between the polishing system 5 and the detection system 6. A loading robot 7-1 is provided at the inlet end of the transfer conveyor line 7. A laser marking device 7-2 is provided in the middle of the transfer conveyor line 7. An air blowing mechanism 7-3 is also provided on the end housing of the laser marking device 7-2. The air blowing mechanism 7-3 includes an air blowing bracket installed on the housing of the laser marking device 7-2 and two high-pressure air blowing heads installed on the air blowing bracket, which are used to remove metal chips from the workpiece before laser marking.

[0029] The detection system 6 is used to receive the workpiece from the polishing system 5, perform detection on the workpiece according to the signal from the host computer control system 1, and transmit the detection data signal to the host computer control system 1. In this embodiment, the detection system 6 includes a detection frame 6-1 and a detection mechanism disposed on the platform of the detection frame 6-1. A detection repositioning mechanism 6-2 is provided on one side of the detection mechanism. The detection mechanism includes a rod diameter measuring component 6-3, a total length detection component 6-4, a runout detection component 6-5, and a vision detection component 6-6. The rod diameter measuring component 6-3, the total length detection component 6-4, the runout detection component 6-5, and the vision detection component 6-6 are equally spaced on the platform.

[0030] Specifically, the rod diameter measuring component 6-3 detects the shaft diameter values ​​at five positions, the total length measuring component 6-4 detects the total length value of the shaft, and the runout measuring component 6-5 detects the runout value of the shaft end face and the cylindricity values ​​at two positions. All data are stored in the host computer control system 1 after acquisition.

[0031] The detection and repositioning mechanism 6-2 includes a vertical slide 6-21, an electric gripper mounting plate 6-22, and several electric gripping components 6-23. The vertical slide 6-21 is fixedly mounted on the platform, the electric gripper mounting plate 6-22 is slidably mounted on the vertical slide 6-21, and the several electric gripping components 6-23 are fixedly mounted on the electric gripper mounting plate 6-22. The vision inspection component 6-6 uses an industrial camera to detect missed processes.

[0032] Specifically, the vertical slide 6-21 has a guide rail on its sliding plate, and the electric gripper mounting plate 6-22 is slidably mounted on the guide rail. The top of the electric gripper mounting plate 6-22 is controlled by a cylinder. There are four electric gripping components 6-23, which are evenly distributed and correspond one-to-one with the detection mechanism.

[0033] The vertical slide 6-21 is also driven by a servo motor to move the lead screw shaft and lead screw nut seat. The sliding plate of the vertical slide 6-21 moves horizontally.

[0034] The inspection frame 6-1 is equipped with a gantry robot 6-7 and a testing station 6-8. The gantry robot 6-7 is mounted on the platform of the inspection frame 6-1 via a gantry, and the testing station 6-8 is located on the platform. The testing station 6-8 is used to place standard-sized samples. The gantry robot 6-7 picks up the samples from the testing station 6-8 for inspection and stores the comparison data, followed by formal production line inspection. In this embodiment, the gantry robot 6-7 is also used to pick up shaft workpieces at the end of the transfer conveyor line 7 and place them at the first inspection station of the inspection system 6; alternatively, the inspection switching mechanism 6-2 can be used to pick up parts at the end of the transfer conveyor line 7, but since the movement range of the inspection switching mechanism 6-2 is limited, this embodiment prioritizes the former.

[0035] This solution provides a shaft end face grinding, polishing, and inspection system that can automatically feed the workpiece, grind the shaft thrust surface, polish the outer diameter of the shaft journal, and automatically detect the diameter, roundness, total length, and end face runout of the thrust surface at five positions of the shaft.

[0036] The above descriptions are merely embodiments of the present invention, and common knowledge regarding specific structures and characteristics in the solutions is not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent.

Claims

1. A system for grinding, polishing, and inspecting shaft end faces, characterized in that, include: The host computer control system and the controlled system include a feeding system, a pushing system, an end face grinding system, a polishing system, and a detection system. The host computer control system is used to control equipment system signals, receive feedback signals from the controlled system, and control the operation of the controlled system. The feeding system is located on one side of the end face grinding system and conveys the workpiece to the pushing system according to the signal of the host computer control system. The pushing system is located on one side of the discharge port of the feeding system, and pushes the workpiece to the end face grinding system according to the signal of the host computer control system. The end face grinding system is used to receive the workpiece from the pusher system and perform grinding operations on the workpiece according to the signals of the host computer control system. The polishing system is used to receive the workpiece from the end face grinding system and perform polishing operations on the workpiece according to the signals from the host computer control system. The detection system is used to receive the workpiece from the polishing system, perform detection on the workpiece according to the signal from the host computer control system, and transmit the detection data signal to the host computer control system.

2. The shaft end face grinding, polishing, and inspection system according to claim 1, characterized in that: The feeding system includes a first bracket and a feeding cylinder. The first bracket is arranged in front of the discharge port of the feeding system, and the feeding cylinder is located at one end of the first bracket.

3. The shaft end face grinding, polishing, and inspection system according to claim 2, characterized in that: The end face grinding system includes a first clamping mechanism and a grinding mechanism mounted on the equipment frame. The first clamping mechanism includes a first clamp and a first slide. The first clamp is fixedly mounted on the first slide. The center of the first clamp is a through hole, and a collet is provided at the through hole. The first clamp can slide to a position that is in the same straight line as the pushing direction of the first bracket and the pushing cylinder.

4. The shaft end face grinding, polishing, and inspection system according to claim 2, characterized in that: The polishing system includes a second clamping mechanism and a polishing mechanism mounted on the equipment frame. The second clamping mechanism includes a second clamp and a second slide. The second clamp is fixedly mounted on the second slide. The center of the second clamp is a through hole, and a collet is provided at the through hole. The center of the second clamp, the sliding direction of the second clamp, the first bracket, and the pushing direction of the pushing cylinder are all on the same straight line.

5. The shaft end face grinding, polishing, and inspection system according to claim 4, characterized in that: A second bracket is provided between the end face grinding system and the polishing system, and the second bracket, the first bracket, and the pushing direction of the pushing cylinder are on the same straight line.

6. The shaft end face grinding, polishing, and inspection system according to claim 1, characterized in that: A transfer conveyor line is provided between the polishing system and the detection system. A loading robot is provided at the entrance end of the transfer conveyor line, and a laser marking device (air blowing head) is provided in the middle of the transfer conveyor line.

7. The shaft end face grinding, polishing, and inspection system according to claim 1, characterized in that: The detection system includes a detection frame and a detection mechanism mounted on a platform of the detection frame. A detection shifting mechanism is provided on one side of the detection mechanism. The detection mechanism includes a rod diameter measurement component, a total length detection component, a runout detection component, and a visual detection component.

8. The shaft end-face grinding, polishing, and inspection system according to claim 7, characterized in that: The detection and positioning mechanism includes a vertical slide, an electric gripper mounting plate, and several electric gripping components. The vertical slide is fixedly mounted on the platform, the electric gripper mounting plate is slidably mounted on the vertical slide, and the several electric gripping components are fixedly mounted on the electric gripper mounting plate.

9. The shaft end face grinding, polishing, and inspection system according to claim 7, characterized in that: The testing frame is equipped with a gantry robot and a testing station. The gantry robot is mounted on the platform of the testing frame via a gantry, and the testing station is located on the platform and is used to place samples.

10. The shaft end face grinding, polishing, and inspection system according to claim 7, characterized in that: There are four electric gripping components, which are evenly spaced and correspond one-to-one with the detection mechanism.

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