Automatic production method and equipment of guide rail grinding machine

Abstract

The invention relates to an automatic production method of a guide rail grinding machine, which comprises the following steps of: 1, automatically placing a workpiece on an electromagnetic chuck of the guide rail grinding machine by using a robot automatic loading and unloading device, completing preliminary positioning of the workpiece in the loading process, and controlling the position error within 1mm; secondly, the guide rail is automatically aligned through an alignment device installed on the guide rail grinding machine; thirdly, an electromagnetic chuck is automatically magnetized to fix the guide rail; fourthly, the guide rail is ground through a grinding machine; and fifthly, after grinding is completed, the electromagnetic chuck is automatically demagnetized, and the guide rail is automatically taken down from the grinding machine through an automatic robot feeding and discharging device.

Description

Technical Field

[0001] This invention patent relates to the field of automation, and particularly to an automated production method and equipment for a guideway grinding machine. Background Art

[0002] The linear guideways processed by existing guideway grinding machines are relatively stable in terms of size and precision. The processing requirements of the linear guideways are ensured by the processing precision of the guideway grinding machines themselves. The size scatter of the workpieces produced in batches can be controlled within the um level, meeting the requirements of interchangeability. At the same time, the profile, roughness, and geometric tolerance of the workpieces also meet the drawing requirements.

[0003] However, existing guideway grinding machines (such as Figure 1 ) complete loading and unloading, cleaning of materials, and cleaning of the electromagnetic chuck on the workbench manually. For small-sized linear guideways with relatively light weights, such as 15 and 20 guideways, workers manually complete the loading and unloading of the linear guideways; for large-sized linear guideways with relatively heavy weights, such as 55 and 65 guideways, workers use a balance crane to complete the loading and unloading of the linear guideways. Each machine needs to be equipped with employees, and the labor cost cannot be reduced. Moreover, during breaks for meals, rest, or temporary departures, the production output will be affected.

[0004] Before loading, the upper surface of the electromagnetic chuck on the guideway grinding machine used to place the linear guideway must be manually cleaned to ensure that the upper plane of the linear guideway can be closely attached to the upper surface of the electromagnetic chuck. The cleaning steps are as follows: first, rinse the upper surface of the electromagnetic chuck back and forth with grinding fluid, then use an air gun to further clean the upper surface of the electromagnetic chuck, then use an oilstone to polish the upper surface of the electromagnetic chuck to ensure that defects such as scratches and bumps on the upper surface of the electromagnetic chuck caused by improper manual loading and unloading force are polished flat, and finally use a rag to perform a final cleaning on the upper surface of the electromagnetic chuck to ensure that foreign matters such as grinding chips, grinding wheel ash, and bumps on the upper surface of the electromagnetic chuck are cleaned up to ensure the final running accuracy of the workpiece after production.

[0005] After cleaning, manual loading begins. Hold the middle of the workpiece by hand or two people hold the two ends of the workpiece and place it in the middle of the electromagnetic chuck, being as careful and gentle as possible to make the upper plane of the workpiece to be processed closely attached to the upper surface of the magnetic conductor, and the position of the workpiece to be processed on the electromagnetic chuck is basically centered. Then, use 6 handheld alignment jigs to align the workpiece to be processed. After alignment is completed, immediately magnetize to firmly hold the workpiece with magnetic force. After magnetization, remove the 6 alignment jigs in sequence, and then start the processing program to start grinding. The dressing and cooling during the grinding process can be automatically completed, and the duration generally ranges from 15 to 35 minutes depending on the model.

[0006] The grinding wheel for grinding the lower surface of the workpiece to be machined is dressed by a diamond pen or a roller. The two grinding wheels for grinding the raceway are dressed by the same diamond roller. The dressing of both is achieved through a program set in the system. Based on parameters such as the diameter and material of the grinding wheel, currently, one grinding wheel can be used for about 48 to 168 hours. Ordinary grinding wheels have a shorter usage time, while CBN grinding wheels have a longer usage time. After grinding, demagnetization is carried out. The worker holds a grinding fluid water gun to wash away pollutants such as grinding wheel ash adhering to the guide rail. The worker manually removes the machined workpiece, and then cleans the upper surface of the electromagnetic chuck. The cleaning steps are as above to ensure that the upper surface of the electromagnetic chuck is clean. Then, manual loading, alignment, magnetization, and grinding are carried out, and so on in a cycle. The machine tool works continuously for 24 hours a day. This production mode must rely on workers for loading, cleaning, alignment, magnetization, unloading, etc. The labor intensity of the workers is relatively high, and it cannot be automated. During this period, due to various factors such as workers having to eat, rest, and leave the site due to something in the middle, production is interrupted, affecting the output. Summary of the Invention

[0007] In order to achieve the above object, the present invention patent is realized through the following technical solutions:

[0008] An automated production method for such a guideway grinding machine includes the following steps:

[0009] Step 1: Use a robot automatic loading and unloading device to automatically place the workpiece at the electromagnetic chuck of the guideway grinding machine, and complete the preliminary positioning of the workpiece during the loading process, with the position error controlled within 1 mm.

[0010] Step 2: Let the guideway complete automatic alignment through the alignment device installed on the guideway grinding machine.

[0011] Step 3: The electromagnetic chuck automatically magnetizes to fix the guideway.

[0012] Step 4: The grinding machine grinds the guideway.

[0013] Step 5: After grinding is completed, the electromagnetic chuck automatically demagnetizes, and use the robot automatic loading and unloading device to automatically remove the guideway from the grinding machine.

[0014] For further improvement, before using the robot automatic loading and unloading device to automatically place the guideway at the electromagnetic chuck of the grinding machine in Step 1, the workbench on the guideway grinding machine moves, the water pump extracts the grinding fluid and flushes the electromagnetic chuck table through a flushing water gun. The grinding fluid passes through magnetic filtration and paper tape filtration to ensure it is clean and free of pollutants. After flushing clean, the cleaning air gun installed on the workbench of the guideway grinding machine sprays compressed air, and the compressed air further cleans the workpiece and the magnetic chuck to remove the main residual grinding fluid. The workbench of the guideway grinding machine stops at the designated position.

[0015] For further improvement, before the robotic automatic loading and unloading device removes the guide rail from the grinding machine automatically in step five, the workbench on the guide rail grinding machine moves, and the water pump extracts the grinding fluid and flushes the workpiece and the table through a water gun. The grinding fluid passes through magnetic filtration and paper tape filtration to ensure cleanliness and no contaminants. After flushing, the cleaning air gun installed on the machine tool sprays compressed air, and the compressed air further cleans the workpiece and the magnetic chuck to remove the main residual grinding fluid. Then the workbench of the guide rail grinding machine stops at the designated position.

[0016] For further improvement, the equipment for the automated production method of a guide rail grinding machine includes a guide rail grinding machine, a robotic automatic loading and unloading device, and an alignment device installed on the guide rail grinding machine. The robotic automatic loading and unloading device includes a six-axis robot, a robot base, and a gripper. The six-axis robot is installed at the upper end of the robot base. The six-axis robot has 6 rotary joints and can achieve full degrees of freedom of movement in three-dimensional space. A gripper is installed on the six-axis robot, and the gripper is used to grasp the workpiece.

[0017] For further improvement, a workbench is installed on the guide rail grinding machine. The workbench can move back and forth along the grinding direction of the guide rail. An electromagnetic chuck is installed on the workbench, and the electromagnetic chuck can magnetize and demagnetize automatically.

[0018] For further improvement, a flushing water gun is installed on the guide rail grinding machine, and the flushing water gun can automatically spray the grinding fluid for flushing work.

[0019] For further improvement, a cleaning air gun is installed on the guide rail grinding machine, and the cleaning air gun can automatically spray compressed air for cleaning work.

[0020] For further improvement, the alignment device includes a fixed positioning block and a movable positioning block. One end of the movable positioning block away from the fixed positioning block is connected to a cylinder, and the cylinder can drive the movable positioning block to move.

[0021] For further improvement, the movable positioning block is connected to the cylinder through an adapter block.

[0022] For further improvement, it also includes a storage bin. The storage bin is divided into a loading bin and an unloading bin. The loading bin is used to place the workpieces to be processed, and the unloading bin is used to place the processed workpieces (finished products). The storage bin positions the workpieces at a certain position, facilitating the clamping and releasing of the robot. At the same time, it enables the finished products to be placed in the unloading bin in an orderly manner for recycling. It can also be transported to a centralized storage location by an AGV cart or other manipulators for the next step of work. A number of isolation rods are installed at the upper end of the storage bin, and the isolation rods position the guide rails and isolate each row of guide rails.

[0023] Compared with the prior art, the advantages of this invention patent are:

[0024] This invention patent completes the loading and unloading of linear guides through a robot loading and unloading device, eliminating the manual loading and unloading production mode and greatly reducing the use of personnel and personnel costs.

[0025] It avoids the damage to the disk table caused by unstable placement and improper cooperation of two people during manual loading and unloading.

[0026] It solves the problem that production is interrupted and output is affected due to various factors such as personnel eating, resting, and leaving the workplace due to something in the middle.

[0027] The automatic alignment of the linear guide is completed through the alignment device on the guide rail grinder, improving the alignment efficiency and alignment accuracy, linking and optimizing the programs and steps, and realizing automated production. Description of the Drawings

[0028] Figure 1 It is a schematic structural diagram of the background technology of the present invention;

[0029] Figure 2 It is a schematic structural diagram of the present invention;

[0030] Figure 3 For the present invention Figure 2 The enlarged view at A in;

[0031] Figure 4 It is the front view of the alignment device of the present invention;

[0032] Figure 5 It is a schematic structural diagram of the magazine of the present invention.

[0033] Description of the reference numerals: 1. Guide rail grinder; 11. Workbench; 12. Electromagnetic chuck; 13. Flushing water gun; 14. Cleaning air gun; 2. Robot automatic loading and unloading device; 21. Six-axis robot; 22. Robot base; 23. Claw; 3. Alignment device; 31. Fixed positioning block; 32. Movable positioning block; 33. Adapter block; 34. Cylinder; 4. Magazine; 41. Isolation rod. Detailed Embodiment

[0034] The following further describes the present invention in conjunction with the drawings:

[0035] As Figures 2 - 5Shown as follows: In this embodiment, an apparatus for an automated production method of a guideway grinding machine includes a guideway grinding machine 1, a robot automatic loading and unloading device 2, an alignment device 3 installed on the guideway grinding machine 1, and a magazine 4. The robot automatic loading and unloading device 2 includes a six-axis robot 21, a robot base 22, and a gripper 23. The six-axis robot 21 is installed at the upper end of the robot base 22. The six-axis robot 21 has six rotary joints and can achieve full degrees of freedom of movement in three-dimensional space. The gripper 23 is installed on the six-axis robot 21 and is used to grasp workpieces. A workbench 11 is installed on the guideway grinding machine 1. The workbench 11 can move back and forth along the grinding direction of the guideway. An electromagnetic chuck 12 is installed on the workbench 11, and the electromagnetic chuck 12 can automatically magnetize and demagnetize. The magazine 4 is divided into a loading magazine 41 and an unloading magazine 42. The loading magazine 41 is used to place workpieces to be processed, and the unloading magazine 42 is used to place processed workpieces (finished products). The magazine 4 positions the workpieces at a certain position, facilitating the grasping and releasing by the robot. At the same time, the finished products are uniformly and orderly placed in the unloading magazine 42 for recycling. They can also be transported to a centralized storage location by an AGV cart or other manipulators for the next step of work. A number of isolation rods 41 are installed at the upper end of the magazine 4. The isolation rods 41 position the guideways and isolate each column of guideways. A flushing water gun 13 is installed on the guideway grinding machine 1, and the flushing water gun 13 can automatically spray grinding fluid for flushing work. A cleaning air gun 14 is installed on the guideway grinding machine 1, and the cleaning air gun 14 can automatically spray compressed air for cleaning work. The alignment device 3 includes a fixed positioning block 31 and a movable positioning block 32. One end of the movable positioning block 32 away from the fixed positioning block is connected to a cylinder 34, and the cylinder 34 can drive the movable positioning block 32 to move. The movable positioning block 32 is connected to the cylinder 34 through an adapter block 33.

[0036] When the present invention is in use: An automated production method for a guideway grinding machine 1 includes a robot automatic loading and unloading device 2, a magazine 4, an alignment device 3, a guideway grinding machine 1, a flushing water gun 13, and a cleaning air gun 14. The robot automatic loading and unloading device 2 is used to complete the loading and unloading of linear guideways. The robot automatic loading and unloading device 2 mainly consists of a six-axis robot 21, a robot base 22, and a gripper 23 (grasping tool). The six-axis robot 21 performs spatial movement and is used to complete the loading and unloading of workpieces. During the loading process, preliminary positioning of the workpieces is completed, and the position error is controlled within 1 mm. The robot base 22 provides support and installation fixation for the six-axis robot 21. The gripper 23 is used to complete the grasping and releasing of workpieces. The loading magazine 41 is used to place workpieces to be processed, and the unloading magazine 42 is used to place processed workpieces (finished products). The magazine 4 positions the workpieces at a certain position, facilitating the grasping and releasing by the robot. At the same time, the finished products are uniformly and orderly placed in the unloading magazine 42 for recycling. They can also be transported to a centralized storage location by an AGV cart or other manipulators for the next step of work.

[0037] The guideway grinding machine 1 is used to complete the grinding of linear guideways, and control the moving workbench 11 to cooperate with the flushing water gun 13 and the cleaning air gun 14 to complete the cleaning of pollutants on the workpiece and the cleaning of pollutants on the magnetic disk. Based on the preliminary positioning of the robot automatic loading and unloading device 2, the workpiece is automatically aligned through the alignment device 3 installed on the guideway grinding machine 1, and then magnetized and ground.

[0038] After grinding, the machine tool automatically demagnetizes. The flushing water gun 13 installed on the machine tool has been aligned with the linear guideway, and the workbench 11 starts to move. The water pump extracts the grinding fluid and flushes the workpiece and the table through the water gun. The grinding fluid passes through magnetic filtration and paper tape filtration to ensure cleanliness and no pollutants. After flushing, the cleaning air gun 14 installed on the machine tool sprays compressed air, and the compressed air further cleans the workpiece and the magnetic disk to remove the main residual grinding fluid. The workbench 11 of the guideway grinding machine 1 stops at the designated position, and then the robot automatic loading and unloading device 2 takes down the processed, flushed and air gun-cleaned workpiece and places it into the finished product bin 4. At the same time, the flushing water gun 13 on the machine tool then uses the grinding fluid to flush back and forth on the upper surface of the electromagnetic chuck 12 to flush the places that were not flushed clean due to workpiece blockage during the previous flushing. Then, the cleaning air gun 14 installed on the machine tool uses compressed air to further clean the upper surface of the electromagnetic chuck 12. Repeat the steps to ensure that the upper surface of the electromagnetic chuck 12 is cleaned. Generally, repeating twice is enough to clean it, and then the workbench 11 stops at the designated position.

[0039] After cleaning, the robot automatic loading and unloading device 2 starts to load the workpiece to be processed. Then, the alignment device 3 on the guideway grinding machine 1 is used to automatically align the workpiece to be processed, and then magnetize and grind. This cycle repeats continuously, and the machine tool works 24 hours a day without interruption. This automated production mode not only has high efficiency, but also greatly reduces the labor intensity of workers and reduces the labor cost.

[0040] Although the present invention has been illustrated and described by reference to the preferred embodiments, those of ordinary skill in the art should understand that various changes in form and details may be made within the scope of the claims.

Claims

1. An automated production method for a guideway grinding machine, characterized in that: It includes the following steps: Step 1: Use a robotic automatic loading and unloading device to automatically place the workpiece at the electromagnetic chuck of the guideway grinding machine, and complete the preliminary positioning of the workpiece during the loading process, with the position error controlled within 1 mm; Step 2: Let the guideway complete automatic alignment through the alignment device installed on the guideway grinding machine; Step 3: The electromagnetic chuck automatically magnetizes to fix the guideway; Step 4: The grinding machine grinds the guideway; Step 5: After grinding is completed, the electromagnetic chuck automatically demagnetizes, and use the robotic automatic loading and unloading device to automatically remove the guideway from the grinding machine.

2. The automated production method of a guideway grinder according to claim 1, characterized in that: Before using the robotic automatic loading and unloading device to automatically place the guideway at the electromagnetic chuck of the grinding machine in Step 1, the workbench on the guideway grinding machine moves, the water pump extracts the grinding fluid and flushes the electromagnetic chuck table through the flushing water gun. The grinding fluid undergoes magnetic filtration and paper tape filtration to ensure it is clean and free of contaminants. After flushing, the cleaning air gun installed on the workbench of the guideway grinding machine sprays compressed air, and the compressed air further cleans the workpiece and the chuck to remove the main grinding fluid residues, and the workbench of the guideway grinding machine stops at the designated position.

3. The automated production method of a guideway grinder according to claim 2, characterized in that: Before using the robotic automatic loading and unloading device to automatically remove the guideway from the grinding machine in Step 5, the workbench on the guideway grinding machine moves, the water pump extracts the grinding fluid and flushes the workpiece and the table through the water gun. The grinding fluid undergoes magnetic filtration and paper tape filtration to ensure it is clean and free of contaminants. After flushing, the cleaning air gun installed on the machine tool sprays compressed air, and the compressed air further cleans the workpiece and the chuck to remove the main grinding fluid residues, and the workbench of the guideway grinding machine stops at the designated position.

4. An automated production device for a guideway grinding machine, which is used for the automated production method of a guideway grinding machine according to claim 3, and is characterized in that: It includes a guideway grinding machine, a robotic automatic loading and unloading device, and an alignment device installed on the guideway grinding machine. The robotic automatic loading and unloading device includes a six-axis robot, a robot base, and a gripper. The six-axis robot is installed at the upper end of the robot base. The six-axis robot has 6 rotary joints and can achieve full degrees of freedom of movement in three-dimensional space. A gripper is installed on the six-axis robot, and the gripper is used to grasp the workpiece.

5. The automated production equipment of a guideway grinder according to claim 4, characterized in that: A workbench is installed on the guideway grinding machine. The workbench can move back and forth along the grinding direction of the guideway. An electromagnetic chuck is installed on the workbench, and the electromagnetic chuck can automatically magnetize and demagnetize.

6. The automated production equipment of a guideway grinding machine according to claim 5, characterized in that: A flushing water gun is installed on the guideway grinding machine, and the flushing water gun can automatically spray the grinding fluid for flushing work.

7. The automated production equipment of a guideway grinding machine according to claim 6, characterized in that: A cleaning air gun is installed on the guideway grinding machine, and the cleaning air gun can automatically spray compressed air for cleaning work.

8. The automated production equipment of a guideway grinding machine according to claim 4, characterized in that: The alignment device includes a fixed positioning block and a movable positioning block. One end of the movable positioning block away from the fixed positioning block is connected to a cylinder, and the cylinder can drive the movable positioning block to move.

9. The automated production equipment of a guideway grinder according to claim 8, characterized in that: The movable positioning block is connected to the cylinder through an adapter block.

10. An automated production device for a guideway grinding machine according to claim 4, characterized in that: It also includes a magazine, which is divided into a loading magazine and an unloading magazine. The loading magazine is used to place workpieces to be processed, and the unloading magazine is used to place processed workpieces. Several isolation rods are installed at the upper end of the magazine.

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