A multi-station automatic polishing machine

Abstract

The present application relates to a multi-station automatic polishing machine tool, which includes a machine base and a machine cover. A first servo rotating drive member is arranged on the top surface of the machine base. A turntable is driven on the top of the first servo rotating drive member. The turntable is provided with a plurality of workpiece fixing mechanisms for fixing workpieces. The plurality of workpiece fixing mechanisms are evenly arranged around the rotation center of the turntable. The machine base is also provided with a plurality of workpiece polishing mechanisms. The plurality of workpiece polishing mechanisms are evenly arranged around the rotation center of the turntable. The number of workpiece fixing mechanisms is greater than the number of workpiece polishing mechanisms, and each workpiece polishing mechanism is aligned with a workpiece fixing mechanism and is used to polish the workpiece fixed on the workpiece fixing mechanism. The machine cover is provided with a plurality of consumable replacement mechanisms, and each consumable replacement mechanism corresponds to a workpiece polishing mechanism to automatically replace the polishing consumables of the workpiece polishing mechanism. The present application realizes simultaneous processing of multiple workpieces and loading and unloading does not require machine shutdown and automatic replacement of consumables, and the polishing efficiency is high.

Description

Technical Field

[0001] The present application relates to the technical field of polishing equipment, and more specifically, to a multi-station automatic polishing machine. Background Art

[0002] With the improvement of science and technology, more metal equipment is used in life. Similar metal components or equipment, metal equipment and components usually have some burrs and flaws on the surface of the workpiece after production. Direct use will increase the contact between the metal surface and the air, causing premature oxidation of the metal surface and reducing the service life of the metal workpiece. Therefore, similar metal components need to polish the exposed metal surface before leaving the factory, which is also convenient for subsequent treatment of the metal surface and increases the service life of the metal equipment.

[0003] However, when polishing a large number of workpieces, a single polishing machine cannot adapt to the faster polishing efficiency. At the same time, the workpiece needs to be stopped for replacement during loading and unloading. After long-term use, the grinding consumables need to be replaced manually, which seriously affects the production efficiency of the workpiece. Summary of the invention

[0004] In order to solve the above technical problems, the present application provides a multi-station automatic polishing machine tool that can realize simultaneous processing of multiple stations without stopping for loading and unloading, and automatically replace consumables to reduce manual operation, thereby achieving high polishing efficiency for workpieces.

[0005] A multi-station automatic polishing machine tool comprises a machine base and a machine cover arranged on the top surface of the machine base, the top surface of the machine base is provided with a first servo rotating drive member, the top drive of the first servo rotating drive member is provided with a turntable, the turntable is provided with a plurality of workpiece fixing mechanisms for fixing workpieces, the plurality of workpiece fixing mechanisms are evenly arranged around the rotation center of the turntable, the machine base is also provided with a plurality of workpiece polishing mechanisms, the plurality of workpiece polishing mechanisms are evenly arranged around the rotation center of the turntable, the number of the workpiece fixing mechanisms is greater than the number of the workpiece polishing mechanisms and each of the workpiece polishing mechanisms is aligned with one of the workpiece fixing mechanisms and is used for polishing the workpiece fixed on the workpiece fixing mechanism, the machine cover is provided with a plurality of consumable replacement mechanisms of the same number as the workpiece polishing mechanisms, each of the consumable replacement mechanisms corresponds to one of the workpiece polishing mechanisms and automatically replaces the polishing consumables of the workpiece polishing mechanism;

[0006] It also includes a servo control system, and the first servo rotation drive component, the workpiece fixing mechanism, the workpiece polishing mechanism, and the consumable material replacement mechanism are all connected to the servo control system signal.

[0007] Preferably, the workpiece fixing mechanism includes a rotating shaft, a rotating connecting seat, a second servo rotating drive member, and a fixed seat. The rotating connecting seat is connected and fixed to the turntable, the rotating shaft is rotatably connected to the rotating connecting seat and is vertically arranged perpendicular to the horizontal ground, the second servo rotating drive member is fixed on the turntable and connected to the rotating shaft for driving the rotating shaft to rotate, the fixed seat is fixed to the top end surface of the rotating shaft, and a locking assembly is provided on the fixed seat for locking the workpiece, and the second servo rotating drive member is connected to the servo control system signal.

[0008] Preferably, the locking assembly comprises a vacuum suction cup, and the vacuum suction cup is fixed on the fixing seat.

[0009] Preferably, the locking assembly comprises a gland, the gland is provided with a tensioning shaft, a tensioning sleeve matching the tensioning shaft is provided on the top surface of the fixing seat, and the gland and the fixing seat are fixed by an interference fit between the tensioning shaft and the tensioning sleeve.

[0010] Preferably, each of the workpiece polishing mechanisms includes a three-axis movable drive frame, a mounting seat, a rotating block, a third servo rotating drive member, a fourth servo rotating drive member, and a polishing wheel. The direction perpendicular to the horizontal ground is the direction parallel to the Z axis, and the direction from the rotation center of the turntable to the axis extension line of the rotating shaft is the direction parallel to the Y axis. The three-axis movable drive assembly is fixed to the top surface of the machine base and connected to the mounting seat for driving the mounting seat to reciprocate along the three-axis directions of X, Y, and Z. A connecting shaft is provided on the rotating block, the connecting shaft is rotatably connected to the mounting seat, and the axis center line of the connecting shaft is parallel to the X-axis direction. The third servo rotating drive member is fixed on the mounting seat and connected to the connecting shaft for driving the connecting shaft to rotate. The fourth servo rotating drive member is fixed on the rotating block and connected to the polishing wheel for driving the polishing wheel to rotate. The rotation center extension line of the polishing wheel is perpendicular to the axis center line of the connecting shaft. The three-axis movable drive frame, the third servo rotating drive member, and the fourth servo rotating drive member are all connected to the servo control system signal.

[0011] Preferably, the workpiece fixing mechanism also includes a strain type force sensor, which is connected to the rotating shaft for sensing the pressure of the rotating shaft in the Y-axis and Z-axis directions. The strain type force sensor is connected to the servo control system signal. The pressure of the product can be digitally displayed in the servo control system, and the force on the product can be kept constant or the required pressure can be adjusted through algorithm control.

[0012] Preferably, the third servo rotation drive member is provided with a tool sleeve, and a tool handle is provided at the center of the polishing wheel, the tool handle is inserted into the tool sleeve and the tool sleeve automatically clamps or unclamps the tool handle, the consumable replacement mechanism includes a fifth servo rotation drive member and a rotating cutter disc, the fifth servo rotation drive member is connected and fixed to the machine cover, the fifth servo rotation drive member is connected to the rotating cutter disc to drive the rotating cutter disc to rotate, the rotating cutter disc is located above the three-axis movable drive frame and the extension line of the rotation center of the rotating cutter disc is parallel to the Z-axis direction, the circumferential side of the rotating cutter disc is concavely provided with a plurality of semicircular grooves that penetrate its own thickness, the rotating cutter disc is convexly provided with a semicircular ring support platform on the side wall of the semicircular groove, and the plurality of the semicircular grooves are arranged around the rotation center of the rotating cutter disc, the outer wall of the tool handle is provided with an annular groove matching the size of the semicircular ring support platform, the tool sleeve and the fifth servo rotation drive member are both connected to the servo control system signal.

[0013] The beneficial technical effects of this application are:

[0014] 1. There are several workpiece fixing mechanisms and several workpiece polishing mechanisms. Each workpiece polishing mechanism is aligned with a workpiece fixing mechanism to perform polishing operations on the workpiece fixed on the workpiece fixing mechanism, so that multiple workpieces can be polished at the same time, which is highly efficient. The number of workpiece fixing mechanisms is greater than the number of workpiece polishing mechanisms, so that when multiple workpieces are polished at the same time, there are vacant workpiece fixing mechanisms to perform workpiece loading and unloading operations, and the first servo rotating drive member drives the turntable to rotate to alternately replace the vacant positions of the workpiece fixing mechanism, so that workpiece loading and unloading does not require shutdown, which further improves the workpiece polishing efficiency. The polishing consumables of the workpiece polishing mechanism are automatically replaced by the consumable replacement mechanism, which reduces the use of manual shutdown replacement, reduces the labor intensity of the staff and further improves the polishing efficiency of the workpiece. The servo control system controls the first servo rotating drive member, the workpiece fixing mechanism, the workpiece polishing mechanism, and the consumable replacement mechanism to cooperate in operation with a high degree of automation.

[0015] 2. The workpiece polishing mechanism drives the mounting seat and the third servo rotating drive member connected to the mounting seat to reciprocate along the X, Y, and Z three-axis directions through the three-axis mobile driving frame, thereby driving the polishing wheel to reciprocate along the X, Y, and Z three-axis directions so that the polishing wheel is close to the workpiece in the three-axis directions to polish the workpiece; the polishing wheel is driven to rotate by the third servo rotating drive member so that the polishing wheel obtains a driving force for polishing and grinding to polish the workpiece; the fourth servo rotating drive member drives the connected shaft to rotate so that the rotating block drives the polishing wheel to swing through rotation so that the polishing wheel has multiple inclination angles in one axial direction to adapt to the workpiece with an inclined surface that needs to be polished; the polishing wheel realizes movement in three axial directions to approach the workpiece to polish the workpiece and realizes a swing angle to adapt to the grinding of inclined surfaces at different positions and angles on the workpiece. During the grinding of the workpiece, the rotating shaft rotates as the first axis, and the three-axis mobile drive frame drives the polishing wheel to move along the X, Y, and Z directions. The three-axis directions are defined as the second axis, the third axis, and the fourth axis respectively. The rotating block rotates as the fifth axis. The five-axis linkage is used for motion profiling, which enables a wider range of polishing and grinding of the workpiece, which is beneficial to saving time in adjusting the swing direction of the workpiece and improving the grinding and polishing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The figure is a schematic diagram of the overall structure of a multi-station automatic polishing machine tool of this embodiment.

[0017] Figure 2 This is a schematic structural diagram of a multi-station automatic polishing machine tool of this embodiment with the machine cover removed.

[0018] Figure 3 Schematic diagram of the structure of the workpiece fixing mechanism of this embodiment.

[0019] Figure 4 Schematic diagram of the structure of the workpiece polishing mechanism of this embodiment.

[0020] Figure 5 Schematic diagram of the structure of the consumable replacement mechanism of this embodiment.

[0021] Figure numerals: 1, machine base; 2, machine cover; 21, door opening structure; 3, servo control system; 4, first servo rotation drive member; 5, turntable; 51, disc; 52, bottom cover; 53, vertical cover; 6, workpiece fixing mechanism; 61, rotating shaft; 62, rotating connecting seat; 63, second servo drive member; 64, fixing seat; 65, strain type force sensor; 66, locking assembly; 661, vacuum suction cup; 662, pressure cover; 7, workpiece polishing mechanism; 71, three axes Mobile drive frame; 711, X-axis linear module; 712, Y-axis linear module; 713, Z-axis linear module; 72, mounting seat; 73, rotating block; 74, third servo rotating drive member; 75, fourth servo rotating drive member; 751, tool sleeve; 76, polishing wheel; 761, tool handle; 7611, annular slot; 8, consumable replacement mechanism; 81, fifth servo rotating drive member; 82, rotating tool disc; 821, semicircular groove; 822, semicircular ring support table. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0023] Reference Figure 1 and Figure 2A multi-station automatic polishing machine tool comprises a machine base 1, a machine cover 2 and a servo control system 3. The machine cover 2 is arranged on the top surface of the machine base 1. A first servo rotating driving member 4 is arranged at the center of the top surface of the machine base 1. A turntable 5 is arranged on the top of the first servo rotating driving member 4. The turntable 5 is driven to rotate by the first servo rotating driving member 4. The first servo rotating driving member 4 is a servo motor. The turntable 5 is provided with a plurality of workpiece fixing mechanisms 6 for fixing the workpiece. The workpiece fixing mechanisms 6 are evenly arranged around the rotation center of the turntable 5. The number of the workpiece fixing mechanisms 6 is selected to be eight. A plurality of workpiece polishing mechanisms 7 are arranged on the machine base 1. The plurality of workpiece polishing mechanisms 7 are evenly arranged around the rotation center of the turntable 5. The workpiece polishing mechanisms The number of 7 is selected to be six, each workpiece polishing mechanism 7 is aligned with a workpiece fixing mechanism 6 and is used to perform a polishing operation on the workpiece fixed on the workpiece fixing mechanism 6, the first servo rotating drive 4, the workpiece fixing mechanism 6, and the workpiece polishing mechanism 7 are all connected to the servo control system 3 by signal, and the six workpiece polishing mechanisms 7 are used to polish the six workpieces at the same time, and the polishing efficiency is high. The workpiece fixing assembly has two vacant positions, and the workpiece is loaded and unloaded by the vacant workpiece fixing mechanism 6, and the first servo rotating drive 4 drives the turntable 5 to rotate to alternately replace the vacant positions of the workpiece fixing mechanism 6, so that the workpiece loading and unloading does not need to stop, and the workpiece polishing efficiency is further improved. The first servo rotating drive 4, the turntable 5, the workpiece fixing mechanism 6, and the workpiece polishing mechanism 7 are covered and protected by the hood 2, and the hood 2 is provided with a door opening structure 21 at the two vacant workpiece fixing assemblies, and the door opening structure 21 is convenient for the staff or the loading and unloading robots to load and unload the workpieces to the workpiece fixing assembly.

[0024] Reference Figure 1 and Figure 2 A number of consumable replacement mechanisms 8 are arranged on the machine cover 2, the same number as the workpiece polishing mechanisms 7. Each consumable replacement mechanism 8 corresponds to a workpiece polishing mechanism 7 and automatically replaces the polishing consumables of the workpiece polishing mechanism 7. The polishing consumables of the workpiece polishing mechanism 7 are automatically replaced by the consumable replacement mechanism 8, which reduces the need for manual shutdown for replacement, reduces the labor intensity of the staff and further improves the polishing efficiency of the workpiece.

[0025] Reference Figure 2 and Figure 3, further, each workpiece fixing mechanism 6 includes a rotating shaft 61, a rotating connecting seat 62, a second servo rotating driving member, a fixed seat 64, and a strain type force sensor 65. The turntable 5 includes a disc 51, a bottom cover 52 and a vertical cover 53. The center of the disc 51 (not shown in the figure) is connected to the first servo movable driving member to realize rotation. The inner peripheral wall of the bottom cover 52 is connected to the outer peripheral wall of the disc 51. The vertical cover 53 is arranged on the top surface of the bottom cover 52 and communicates with the inside of the bottom cover 52 and is rotatably connected to the top of the machine cover 2. The rotating connecting seat 62 is fixed to the top surface of the bottom cover 52. The rotating shaft 61 is rotatably connected to the rotating connecting seat 62 and is vertically arranged perpendicular to the horizontal ground, and the rotating shaft 61 passes through the bottom cover 52. The second servo rotating driving member is arranged in the bottom cover 52 and is connected and fixed to the bottom cover 52. The second servo rotating drive is a combination of a cam divider and a servo motor, which realizes the rotation of the rotating shaft 61 and can stop or position at a fixed interval at a certain angle. The strain type force sensor 65 is fixed to the bottom of the cam divider and connected to the rotating shaft 61 to sense the pressure of the rotating shaft 61 in the Y-axis and Z-axis directions. The strain type force sensor 65 produces elastic deformation under the action of external force through the internal elastic body, so that the resistance strain gauge attached to its surface also produces deformation. After the resistance strain gauge is deformed, its resistance value will change, and then the corresponding measurement circuit converts this resistance change into an electrical signal, thereby completing the process of converting the external force into an electrical signal. In this embodiment, the elastic body in the strain type force sensor 65 is set to contact the rotating shaft 61 in two corresponding Y-axis and Z-axis directions. The second servo rotating drive and the strain type force sensor 65 are both connected to the servo control system 3 by signal. The pressure of the product can be digitally displayed in the servo control system 3, and the workpiece polishing mechanism 7 is controlled by an algorithm to make the product force constant or adjust the required pressure.

[0026] Reference Figure 3 The fixed seat 64 is fixed to the top end surface of the rotating shaft 61. A locking assembly 66 is provided on the fixed seat 64 for locking the workpiece. The workpiece is locked on the fixed seat 64 through the locking assembly 66. The rotating shaft 61 is driven to rotate by the second servo rotating member to drive the workpiece to rotate, so that the peripheral side surfaces of the workpiece can automatically correspond to the workpiece polishing mechanism 7 for polishing operation and the workpiece can be paused at intervals to provide polishing time for the workpiece polishing mechanism 7, which is conducive to reducing the need to manually adjust the polishing surface of the workpiece, facilitating the improvement of polishing efficiency and reducing the labor intensity of employees. The workpiece is subjected to pressure during polishing, and the pressure is transmitted to the strain force sensor 65 through the rotating shaft 61 to be monitored by the servo control system 3.

[0027] Reference Figure 3Furthermore, the locking assembly 66 includes a vacuum suction cup 661 and a pressure cover 662. The vacuum suction cup 661 is fixed on the fixed seat 64, and the workpiece is adsorbed on the top surface of the fixed seat 64 to fix the workpiece. A tension sleeve is provided on the top surface of the fixed seat 64, and the pressure cover 662 is provided with a tension shaft matching the tension sleeve. The pressure cover 662 and the fixed seat 64 are fixed by the interference fit of the tension shaft and the tension sleeve. The pressure cover 662 presses the top surface of the workpiece and the fixed seat 64 to clamp the workpiece and further fix the workpiece. It is suitable for fixing workpieces with holes to realize the operation of grinding and polishing the peripheral side of this type of workpiece. The vacuum suction cup 661 is connected to the servo control system 3 signal.

[0028] Reference Figure 2 and Figure 4Furthermore, each workpiece polishing mechanism 7 includes a three-axis mobile drive frame 71, a mounting seat 72, a rotating block 73, a third servo rotating drive member 74, a fourth servo rotating drive member 75, and a polishing wheel 76. The direction perpendicular to the horizontal ground is the direction parallel to the Z axis, and the direction of the axis extension line of the rotating center knife rotating shaft 61 of the turntable 5 is the direction parallel to the Y axis. The three-axis mobile drive assembly is fixed to the top surface of the machine base 1 and connected to the mounting seat 72 for driving the mounting seat 72 to reciprocate along the X, Y, and Z axis directions. A connecting shaft is provided on the rotating block 73. The connecting shaft is rotatably connected to the mounting seat 72 and the axis center line of the connecting shaft is parallel to the X-axis direction. The third servo rotating drive member 74 is fixed on the mounting seat 72 and connected to the connecting shaft for driving the connecting shaft to rotate. The fourth servo rotating drive member 75 is fixed on the rotating block 73 and connected to the polishing wheel 76 for driving the polishing wheel 76 to rotate. The rotation center extension line of the polishing wheel 76 is parallel to the X-axis direction. The axis of the connecting shaft is set vertically, the third servo rotating drive member 74 and the fourth servo rotating drive member 75 are both servo motors, the three-axis mobile drive frame 71, the third servo rotating drive member 74, and the fourth servo rotating drive member 75 are all connected to the servo control system 3 signal to be automatically controlled, the workpiece polishing mechanism 7 drives the mounting seat 72 and the third servo rotating drive member 74 connected to the mounting seat 72 to reciprocate along the X, Y, and Z three-axis directions through the three-axis mobile drive frame 71 to drive the polishing wheel 76 to reciprocate along the X, Y, and Z three-axis directions so that the polishing wheel 76 is close to the workpiece in the three-axis directions to polish the workpiece. When the polishing wheel 76 is close to the workpiece, the strain force sensor 65 senses the pressure of the workpiece in the Y and Z axis directions and responds to the servo control system 3. The servo control system 3 controls the three-axis mobile drive frame 71 to move the polishing wheel 76 to realize the contact force of the polishing wheel 76 on the workpiece, so that the workpiece polishing effect is better. The fourth servo rotating drive member 75 drives the polishing wheel 76 to rotate so that the polishing wheel 76 obtains the driving force for polishing and grinding to polish the workpiece. The third servo rotating drive member 74 drives the connecting shaft to rotate so that the rotating block 73 drives the polishing wheel 76 to swing through rotation so that the polishing wheel 76 has multiple inclination angles in one axial direction to adapt to the workpiece with an inclined surface that needs to be polished. The polishing wheel 76 moves in three axial directions to get close to the workpiece to polish the workpiece and achieves a swing angle to adapt to the polishing of inclined surfaces at different positions and angles on the workpiece. During the polishing of the workpiece, the rotation of the rotating shaft is the first axis, and the three-axis mobile driving frame drives the polishing wheel to move along the X, Y, and Z three-axis directions. The three-axis directions are respectively defined as the second axis, the third axis, and the fourth axis. The rotation of the rotating block is the fifth axis. The five-axis linkage is used for motion profiling, so that the polishing and grinding range of the workpiece is wider, which is beneficial to saving time for adjusting the swing direction of the workpiece and improving the polishing efficiency.

[0029] The polishing and grinding range is wide, which is beneficial to saving time for adjusting the direction of the workpiece and improving the grinding and polishing efficiency.

[0030] Reference Figure 4 Further, the three-axis mobile drive frame 71 includes an X-axis linear module 711, a Y-axis linear module 712, and a Z-axis linear module 713. The X-axis linear module 711 is fixed on the machine base 1, and the driving direction of the X-axis linear module 711 is parallel to the X-axis direction. The piston of the X-axis linear module 711 is connected to the piston of the Y-axis linear module 712. The driving direction of the Y-axis linear module 712 is parallel to the Y-axis direction. The piston of the Y-axis linear module 712 is connected to the Z-axis linear module 713. The driving direction of the Z-axis linear module 713 is parallel to the Z-axis direction. The mounting seat 72 is connected to the piston of the Z-axis linear module 713. The X-axis linear module 711, the Y-axis linear module 712, and the Z-axis linear module 713 are all connected to the servo control system. The system 3 signals are connected, and the X-axis linear module 711 drives the Y-axis linear module 712 to move back and forth along the X-axis direction, thereby driving the Z-axis linear module 713 and the mounting seat 72 to move back and forth along the X-axis direction. The Y-axis linear module 712 drives the Z-axis linear module 713 to move back and forth along the Y-axis direction, thereby driving the mounting seat 72 to move back and forth along the Y-axis direction. The Z-axis linear module 713 drives the mounting seat 72 to move back and forth along the Z-axis direction, and further realizes the reciprocating movement of the mounting seat 72 and the third servo rotating drive member 74 connected to the mounting seat 72 along the X, Y, and Z three-axis directions, thereby driving the polishing wheel 76 to move back and forth along the X, Y, and Z three-axis directions, so that the polishing wheel 76 is close to the workpiece in the three-axis directions to polish the workpiece.

[0031] Reference Figure 2 , Figure 4 and Figure 5, further, the fourth servo rotating drive member 75 is provided with a knife sleeve 751, and a knife handle 761 is provided at the center of the polishing wheel 76. The knife handle 761 is inserted into the knife sleeve 751 and the knife handle 761 is automatically clamped or released by the knife sleeve 751. The knife sleeve 751 and the knife handle 761 and their cooperation are prior art and will not be described in detail in this embodiment. The consumable replacement mechanism 8 includes a fifth servo rotating drive member 81 and a rotating knife disc 82. The fifth servo rotating drive member 81 is a servo motor and is connected and fixed to the machine cover 2. The fifth servo rotating drive member 81 is connected to the rotating knife disc 82 for driving the rotating knife The disk 82 rotates, and the rotating cutter disk 82 is located above the three-axis mobile drive frame 71 and the extension line of the rotation center of the rotating cutter disk 82 is parallel to the Z-axis direction. The circumferential side of the rotating cutter disk 82 is concavely provided with a plurality of semicircular grooves 821 that penetrate its own thickness. The rotating cutter disk 82 is convexly provided with a semicircular ring support platform 822 on the side wall of the semicircular groove 821. The plurality of semicircular grooves 821 are arranged around the rotation center of the rotating cutter disk 82. The outer wall of the tool handle 761 is provided with an annular groove 7611 that matches the size of the semicircular ring support platform 822. The tool sleeve 751 and the fourth servo rotation drive component 75 are both connected to the servo control system 3 signal.Polishing wheels 76 are installed in several semicircular grooves 821 of the rotating cutter disc 82. Specifically, the annular groove 7611 on the handle 761 of the polishing wheel 76 is engaged with the semicircular support platform 822 in the semicircular groove 821 to achieve the support of the rotating cutter disc 82 for several polishing wheels 76. When the polishing wheel 76 needs to be loaded onto the tool sleeve 751, the tool sleeve 751 is moved by the three-axis mobile drive frame 71 and the connecting shaft is rotated by the third servo rotation drive member 74 so that the feed hole of the tool sleeve 751 faces upward. , the fifth servo rotary drive member 81 drives the rotary cutter disc 82 to rotate so that the feed hole of the tool sleeve 751 is aligned with the tool handle 761 in the semicircular groove 821, and then the three-axis mobile drive frame 71 drives the tool sleeve 751 to rise so that the tool handle 761 is inserted into the tool sleeve 751 to be clamped and fixed by the tool sleeve 751, and the three-axis mobile drive frame 71 drives the tool sleeve 751 to move so that the tool sleeve 751 drives the tool handle 761 to discharge from the side opening direction of the semicircular groove 821 to realize automatic loading of the polishing wheel 76 onto the tool sleeve 751, when When it is necessary to automatically unload the polishing wheel 76 from the tool sleeve 751, the tool sleeve 751 is moved by the three-axis mobile driving frame 71 and the connecting shaft is driven to rotate by the third servo rotating driving member 74 so that the tool sleeve 751 drives the polishing wheel 76 to be arranged vertically. The tool sleeve 751 drives the polishing wheel 76 to rise by the three-axis mobile driving frame 71 so that the annular groove 7611 of the tool handle 761 is aligned to the height of the semicircular support platform 822. The rotating cutter disc 82 is driven to rotate by the fifth servo rotating driving member 81 so that the semicircular support platform 822 in the vacant position is The side opening of the groove 821 aligns the position of the tool handle 761, and finally the three-axis mobile driving frame 71 drives the tool sleeve 751 to move and drive the tool handle 761 to move into the semicircular groove 821 so that the tool handle 761 is inserted into the semicircular groove 821 to realize automatic unloading of the polishing wheel 76 from the tool sleeve 751. The polishing wheel 76 is automatically unloaded from the tool sleeve 751 and automatically loaded into the tool sleeve 751, thereby realizing automatic replacement of consumables, reducing the use of manual shutdown for replacement, reducing the labor intensity of the staff and further improving the polishing efficiency of the workpiece.

[0032] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A multi-station automatic polishing machine, characterized in that: The invention comprises a machine base and a machine cover arranged on the top surface of the machine base, the top surface of the machine base is provided with a first servo rotating drive member, the top drive of the first servo rotating drive member is provided with a turntable, the turntable is provided with a plurality of workpiece fixing mechanisms for fixing the workpiece, the plurality of workpiece fixing mechanisms are evenly arranged around the rotation center of the turntable, the machine base is also provided with a plurality of workpiece polishing mechanisms, the plurality of workpiece polishing mechanisms are evenly arranged around the rotation center of the turntable, the number of the workpiece fixing mechanisms is more than the number of the workpiece polishing mechanisms and each of the workpiece polishing mechanisms is aligned with one of the workpiece fixing mechanisms and is used for polishing the workpiece fixed on the workpiece fixing mechanism, the machine cover is provided with a plurality of consumable replacement mechanisms of the same number as the workpiece polishing mechanisms, each of the consumable replacement mechanisms corresponds to one of the workpiece polishing mechanisms and automatically replaces the polishing consumables of the workpiece polishing mechanism; It also includes a servo control system, and the first servo rotation drive component, the workpiece fixing mechanism, the workpiece polishing mechanism, and the consumable material replacement mechanism are all connected to the servo control system signal.

2. A multi-station automatic polishing machine according to claim 1, characterized in that: The workpiece fixing mechanism includes a rotating shaft, a rotating connecting seat, a second servo rotating driving member, and a fixed seat. The rotating connecting seat is connected and fixed to the turntable. The rotating shaft is rotatably connected to the rotating connecting seat and is vertically arranged perpendicular to the horizontal ground. The second servo rotating driving member is fixed on the turntable and connected to the rotating shaft for driving the rotating shaft to rotate. The fixed seat is fixed to the top end surface of the rotating shaft, and a locking assembly is arranged on the fixed seat for locking the workpiece. The second servo rotating driving member is connected to the servo control system signal.

3. A multi-station automatic polishing machine according to claim 2, characterized in that: The locking assembly comprises a vacuum suction cup, and the vacuum suction cup is fixed on the fixing seat.

4. The multi-station automatic polishing machine according to claim 2, characterized in that: The locking assembly comprises a gland, the gland is provided with a tensioning shaft, the top surface of the fixing seat is provided with a tensioning sleeve matching the tensioning shaft, and the gland and the fixing seat are fixed by interference fit between the tensioning shaft and the tensioning sleeve.

5. The multi-station automatic polishing machine according to claim 2, characterized in that: Each of the workpiece polishing mechanisms includes a three-axis mobile drive frame, a mounting seat, a rotating block, a third servo rotating drive member, a fourth servo rotating drive member, and a polishing wheel. The direction perpendicular to the horizontal ground is the direction parallel to the Z axis, and the direction from the rotation center of the turntable to the axis extension line of the rotating shaft is the direction parallel to the Y axis. The three-axis mobile drive assembly is fixed to the top surface of the machine base and connected to the mounting seat for driving the mounting seat to reciprocate along the X, Y, and Z axis directions. A connecting shaft is provided on the rotating block, and the connecting shaft is rotatably connected to the mounting seat and the axis center line of the connecting shaft is parallel to the X axis direction. The third servo rotating drive member is fixed on the mounting seat and connected to the connecting shaft for driving the connecting shaft to rotate. The fourth servo rotating drive member is fixed on the rotating block and connected to the polishing wheel for driving the polishing wheel to rotate. The rotation center extension line of the polishing wheel is perpendicular to the axis center line of the connecting shaft. The three-axis mobile drive frame, the third servo rotating drive member, and the fourth servo rotating drive member are all connected to the servo control system signal.

6. The multi-station automatic polishing machine tool according to claim 5, characterized in that: The workpiece fixing mechanism also includes a strain type force sensor, which is connected to the rotating shaft for sensing the pressure of the rotating shaft in the Y-axis and Z-axis directions, and the strain type force sensor is connected to the servo control system signal.

7. The multi-station automatic polishing machine according to claim 5, characterized in that: The third servo rotation drive member is provided with a tool sleeve, and a tool handle is provided at the center of the polishing wheel. The tool handle is inserted into the tool sleeve and the tool sleeve automatically clamps or releases the clamping fixation of the tool handle. The consumable replacement mechanism includes a fifth servo rotation drive member and a rotating cutter disc. The fifth servo rotation drive member is connected and fixed to the machine cover. The fifth servo rotation drive member is connected to the rotating cutter disc to drive the rotating cutter disc to rotate. The rotating cutter disc is located above the three-axis movable drive frame and the extension line of the rotation center of the rotating cutter disc is parallel to the Z-axis direction. The peripheral side of the rotating cutter disc is concavely provided with a plurality of semicircular grooves that penetrate its own thickness. The rotating cutter disc is convexly provided with a semicircular ring support platform on the side wall of the semicircular groove. The plurality of semicircular grooves are arranged around the rotation center of the rotating cutter disc. The outer wall of the tool handle is provided with an annular groove matching the size of the semicircular ring support platform. The tool sleeve and the fifth servo rotation drive member are both connected to the servo control system signal.

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