Automatic grinding device for large fan

Abstract

An automatic grinding device of a large fan comprises a feeding and discharging robot, a grinding robot and a grinding tool, a workpiece to be ground is fixed to the grinding tool, and a grinding assembly used for grinding the workpiece is fixed to the mounting end of the grinding robot. According to the automatic polishing device, the loading and unloading robot is used for carrying workpieces and loading and unloading, the polishing robot is used for automatically polishing the large fan, and the polishing tool is used for supporting, fixing and clamping the fan to be polished; on-site unmanned management is realized, and operators are prevented from being harmed by occupational diseases.

Description

Technical Field

[0001] This utility model relates to a polishing device, specifically, to an automatic polishing device for a large fan. Background Technology

[0002] After large fans are cast, they have a lot of burrs and flash, which need to be manually polished. Currently, the polishing method involves several people carrying the fan to the polishing table and polishing it manually. This method has the following disadvantages: First, the fan itself is very heavy, requiring many people to carry it, which is difficult and time-consuming and labor-intensive. Second, the polishing efficiency is low. Third, the working conditions are poor; the air is filled with a large amount of aluminum dust, and workers exposed to this dust for extended periods are at risk of occupational diseases. These are the shortcomings of the existing technology. Utility Model Content

[0003] The purpose of this invention is to solve the problems mentioned in the background art and to propose an automatic polishing device for large fans.

[0004] The technical solution adopted by this utility model to solve its technical problem is: an automatic grinding device for a large fan, including a loading and unloading robot, a grinding robot and a grinding fixture, wherein the workpiece to be ground is fixed on the grinding fixture, and the mounting end of the grinding robot is fixed with a grinding component for grinding the workpiece.

[0005] A further improvement of this utility model is that the grinding fixture includes a bracket, a fixed plate is mounted on the bracket, and a plurality of jaws capable of clamping the workpiece are provided on the fixed plate. The jaws are driven by a pneumatic cylinder to perform opening and closing actions. A set of support columns are provided on the inner side of the jaws and on the fixed plate.

[0006] A further improvement of this utility model is that the gripper includes a clamping plate, a first connecting rod, a second connecting rod, a third connecting rod, a first connecting block, and a fixing post; the fixing post is mounted on the chassis, both sides of the fixing post are rotatably connected to the first connecting rod, the middle part of the first connecting rod is rotatably connected to the second connecting rod, the second connecting rod is rotatably connected to both sides of one end of the first connecting block, both sides of the other end of the first connecting block are rotatably connected to the third connecting rod, and the bottom of the first connecting block is fixed to the piston rod of the pneumatic cylinder; the third connecting rod is rotatably connected to the end of the clamping plate away from the clamping end, and the first connecting rod is rotatably connected to the middle part of the clamping plate.

[0007] A further improvement of this invention is that the fixed disk has a ring array of multiple grippers.

[0008] A further improvement of this invention is that the plurality of grippers are evenly arranged on the fixed disk.

[0009] A further improvement of this utility model is that the gripper is arranged radially along the fixed disk.

[0010] A further improvement of this utility model is that a spring positioning pin matching the workpiece positioning hole is provided in the middle of the fixed plate.

[0011] A further improvement of this utility model is that a set of support blocks for supporting the workpiece are provided at the lower end of the fixed plate.

[0012] A further improvement of this utility model is that the pneumatic cylinder is installed at the bottom of the fixed plate, the fixed plate is provided with a through hole, and the piston rod of the pneumatic cylinder passes through the through hole and is fixed to the first connecting block.

[0013] A further improvement of this invention is that when the grinding component moves to the vicinity of the clamping jaws and interferes with the clamping jaws, the clamping jaws at that point will retract; after grinding is completed, the clamping jaws at that point will extend again and clamp onto the workpiece.

[0014] The beneficial effects of this utility model are: this utility model relies on loading and unloading robots to transport workpieces and load and unload materials, and uses grinding robots to automatically grind large fans, and uses grinding fixtures to support, fix and clamp the fans to be ground; it realizes unmanned on-site management and avoids operators from being exposed to occupational hazards. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model;

[0016] Figure 2 This is a structural diagram of the grinding fixture;

[0017] Figure 3 for Figure 2 A schematic diagram of the structure after the workpiece is removed;

[0018] Figure 4 A schematic diagram of the structure in the clamping state of the grippers;

[0019] Figure 5 A schematic diagram of the structure in the relaxed gripper state;

[0020] Figure 6 This is a schematic diagram of the workpiece's structure.

[0021] In the diagram, 1 is the bracket, 2 is the fixed plate, 3 is the gripper, 31 is the clamping plate, 32 is the first connecting rod, 33 is the second connecting rod, 34 is the third connecting rod, 35 is the first connecting block, 36 is the fixed column, 4 is the pneumatic cylinder, 5 is the support column, 6 is the spring positioning pin, 7 is the support block, 8 is the loading and unloading robot, 9 is the grinding robot, 10 is the grinding assembly, 11 is the positioning hole, and 12 is the workpiece. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. The present utility model will be further described with reference to the accompanying drawings and embodiments:

[0023] like Figure 1-6 As shown, an automatic grinding device for a large fan includes a loading and unloading robot 8, a grinding robot 9, and a grinding fixture. The workpiece 12 to be ground is fixed on the grinding fixture, and a grinding component 10 for grinding the workpiece is fixed on the mounting end of the grinding robot 9.

[0024] The grinding component 10 in this invention is existing technology, including an electric motor and an electric grinding head. The electric grinding head is driven by the rotation of the main shaft of the electric motor to grind the workpiece.

[0025] In this invention, the loading / unloading robot 8 is used to grab the fan and place it on the grinding fixture. After grinding, the fan is removed. The grinding component 10 on the grinding robot 9 is used to grind the fan, including the circular surface and the side surface of the fan. The grinding fixture is used to support, fix, and clamp the fan to be ground. The loading / unloading robot 8, the grinding robot 9, and the grinding fixture work together to solve the inconvenience of manual handling. The grinding robot 9 automatically grinds the fan, improves grinding efficiency, realizes unmanned on-site management, and avoids workers directly contacting aluminum powder.

[0026] Furthermore, the grinding fixture includes a support 1, on which a fixed plate 2 is mounted. The fixed plate 2 has multiple grippers 3 capable of clamping workpieces. The grippers 3 are driven by a pneumatic cylinder 4 to open and close. A set of support columns 5 are located inside the grippers 3 and on the fixed plate 2. The grippers are driven by the pneumatic cylinder 4 to clamp and release the workpiece. Specifically, the fixed plate has multiple grippers 3 arranged in a circular array. The multiple grippers 3 are evenly distributed on the fixed plate 2, and the grippers 3 are arranged radially along the fixed plate 2. Figure 2 As shown, this utility model is equipped with 8 grippers.

[0027] The gripper 3 includes a clamping plate 31, a first connecting rod 32, a second connecting rod 33, a third connecting rod 34, a first connecting block 35, and a fixing post 36. The fixing post 36 is mounted on the chassis. Both sides of the fixing post 36 are rotatably connected to the first connecting rod 32. The middle part of the first connecting rod 32 is rotatably connected to the second connecting rod 33. The second connecting rod 33 is rotatably connected to both sides of one end of the first connecting block 35. Both sides of the other end of the first connecting block 35 are rotatably connected to the third connecting rod 34. The bottom of the first connecting block 35 is fixed to the piston rod of the pneumatic cylinder 4. The third connecting rod 34 is rotatably connected to the end of the clamping plate 31 away from the clamping end. The first connecting rod 32 is rotatably connected to the middle part of the clamping plate 31. When the piston rod of the pneumatic cylinder 4 extends outward, it can move the clamping plate 31 along the radial direction of the fixed plate 2, thereby clamping it onto the workpiece. When the piston rod of the pneumatic cylinder 4 retracts, it can cause the clamping plate 31 to move in the opposite direction, causing the clamping plate 31 to detach from the workpiece and retract as a whole.

[0028] Furthermore, the pneumatic cylinder 4 is installed at the bottom of the fixed plate 2, and the fixed plate 2 is provided with a through hole. The piston rod of the pneumatic cylinder 4 passes through the through hole and is fixed to the first connecting block 35.

[0029] Furthermore, a spring positioning pin 6 matching the workpiece positioning hole 11 is provided in the middle of the fixed plate 2. The function of the spring positioning pin 6 is to achieve the initial positioning of the workpiece.

[0030] Furthermore, a set of support blocks 7 for supporting the workpiece is provided at the lower end of the fixed plate 2, which provides a certain support for the workpiece during grinding.

[0031] The processing steps of this utility model are as follows:

[0032] 1. The loading and unloading robot transports the fan workpiece to the grinding fixture. The spring positioning pin passes through the positioning hole on the fan workpiece, and the support block provides initial support for the workpiece.

[0033] 2. The PLC controls the action of 8 pneumatic cylinders, causing the piston rods of the pneumatic cylinders to extend, the pressure plate to move and clamp the fan workpiece;

[0034] 3. The PLC controls the movement of the grinding robot, and the grinding components rotate to start grinding the fan workpiece;

[0035] 4. When the grinding assembly interferes with the pressure plate, the PLC controls the cylinder corresponding to the pressure plate to retract and the gripper to release. After grinding this area, the PLC controls the cylinder to press it back up, and the power spindle grinds the next station.

[0036] 5. After grinding, the loading and unloading robot removes the fan workpiece and stacks it on a tray.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic polishing device for a large fan, characterized in that, It includes a loading and unloading robot, a grinding robot, and a grinding fixture. The grinding fixture has a workpiece to be ground fixed on it, and the mounting end of the grinding robot has a grinding component for grinding the workpiece fixed on it.

2. The automatic polishing device for large fans according to claim 1, characterized in that, The grinding fixture includes a support frame, on which a fixed plate is mounted. The fixed plate is provided with multiple grippers capable of clamping the workpiece. The grippers are driven by a pneumatic cylinder to open and close. A set of support columns is provided on the inner side of the grippers and on the fixed plate.

3. The automatic polishing device for large fans according to claim 2, characterized in that, The gripper includes a clamping plate, a first connecting rod, a second connecting rod, a third connecting rod, a first connecting block, and a fixing post. The fixing post is mounted on the chassis. Both sides of the fixing post are rotatably connected to the first connecting rod. The middle of the first connecting rod is rotatably connected to the second connecting rod. The second connecting rod is rotatably connected to both sides of one end of the first connecting block. Both sides of the other end of the first connecting block are rotatably connected to the third connecting rod. The bottom of the first connecting block is fixed to the piston rod of the pneumatic cylinder. The third connecting rod is rotatably connected to the end of the clamping plate away from the clamping end, and the first connecting rod is rotatably connected to the middle of the clamping plate.

4. The automatic polishing device for large fans according to claim 2 or 3, characterized in that, The fixed disk has a ring array of multiple grippers.

5. The automatic polishing device for large fans according to claim 4, characterized in that, The multiple grippers are evenly arranged on the fixed disk.

6. The automatic polishing device for large fans according to claim 5, characterized in that, The grippers are arranged radially along the fixed disk.

7. The automatic polishing device for large fans according to claim 2, characterized in that, The fixed plate is provided with a spring positioning pin in the middle that matches the workpiece positioning hole.

8. The automatic polishing device for large fans according to claim 2, characterized in that, The lower end of the fixed plate is provided with a set of support blocks for supporting the workpiece.

9. The automatic polishing device for large fans according to claim 2, characterized in that, The pneumatic cylinder is installed at the bottom of the fixed plate, which has a through hole. The piston rod of the pneumatic cylinder passes through the through hole and is fixed to the first connecting block.

10. The automatic polishing device for large fans according to claim 3, characterized in that, When the grinding assembly moves to the vicinity of the gripper and interferes with the gripper, the gripper retracts at that point; after grinding is completed, the gripper extends again and clamps onto the workpiece.

Images