Rotating disc type grinding machine

Abstract

The utility model relates to a rotating disc type grinding machine which comprises a base, a first rotation driving assembly is arranged on the top face of the base, a rotating disc is arranged on the first rotation driving assembly, the first rotation driving assembly is used for driving the rotating disc to rotate in an intermittent mode, and the rotating disc is parallel to the horizontal ground. The top surface of the rotating disc is provided with a plurality of second rotating driving assemblies which are arranged around the rotating center of the rotating disc, the top of each second driving assembly is provided with a jig assembly used for fixing a workpiece, the second rotating driving assemblies drive the jig assemblies to rotate intermittently, and the top surface of the base is further provided with a plurality of four-axis moving platforms; the multiple four-axis motion platforms are arranged around the rotating center of the rotating disc, each four-axis motion platform is provided with a grinding tool in a driving mode, the grinding tools are driven by the four-axis motion platforms to move along the X axis, the Y axis, the Z axis and the A axis, and the types of the grinding tools arranged on the multiple four-axis motion platforms are different. Polishing efficiency is high, and workers are not prone to being hurt.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of polishing equipment, and more particularly to a rotary disc type polishing machine. BACKGROUND

[0002] After the workpiece is produced, burrs and the like exist on the surface, which will affect the use of the workpiece, and therefore a polishing process needs to be added to polish and polish the surface of the workpiece to remove burrs.

[0003] In the related art, for polishing workpieces with multiple polishing surfaces, a worker usually holds the workpiece close to a polishing tool to polish it, and different polishing tools need to be used to polish different polishing surfaces of the workpiece. For example, a grinding disc is used to polish a plane to make the plane have good flatness, and a flexible abrasive belt is usually used to polish a curved surface and an arc surface to achieve adaptive polishing of the curvature change of the surface.

[0004] In view of the above related art, the worker is likely to be injured by hand when holding the workpiece to polish it, and only one workpiece can be polished by each worker at a time, and the workpiece with multiple polishing surfaces needs to be transferred to different polishing tools for polishing, which makes the polishing efficiency slow and not suitable for mass production of workpieces. CONTENT OF THE UTILITY MODEL

[0005] To solve the problem of easy injury to the hand of the worker and low polishing efficiency in the related art when the worker holds the workpiece to polish it, the present application provides a rotary disc type polishing machine to automatically polish workpieces with multiple polishing surfaces.

[0006] A rotary disc type polishing machine comprises a base, the top surface of the base is provided with a first rotation driving assembly, the first rotation driving assembly is provided with a rotary disc, the first rotation driving assembly is used to drive the rotary disc to rotate intermittently, the rotary disc is parallel to the horizontal ground, and the top surface of the rotary disc is provided with a plurality of second rotation driving assemblies arranged around the rotation center, the top of each second rotation driving assembly is provided with a jig assembly used to fix or release the workpiece, and the second rotation driving assembly drives the jig assembly to rotate intermittently.

[0007] The top surface of the base is also provided with a plurality of four-axis motion platforms, the plurality of four-axis motion platforms are arranged around the rotation center of the rotary disc, each four-axis motion platform is aligned with one second rotation driving assembly, and each four-axis motion platform is driven to be provided with a polishing tool, the polishing tool is driven to move along the X-axis, Y-axis, Z-axis and A-axis by the four-axis motion platform, and the types of the polishing tools provided by the plurality of four-axis motion platforms are different.

[0008] Further comprising a control system, the first rotation driving assembly, the second rotation driving assembly and the four-axis motion platform are signal connected with the control system.

[0009] Preferably, the first rotation driving assembly comprises a first cam divider and a first servo motor, the first cam divider is fixedly connected with the base, the first servo motor is connected with the input end of the first cam divider, and the output end of the first cam divider is connected with the rotating disc.

[0010] Preferably, the second rotation driving assembly comprises a second cam divider and a second servo motor, the second cam divider is fixedly connected with the rotating disc, the second servo motor is connected with the input end of the second cam divider, and the output end of the second cam divider is connected with the jig assembly.

[0011] Preferably, the four-axis motion platform comprises an X-axis linear module, a Y-axis linear module, a Z-axis linear module, a mounting seat, an A rotating shaft and a third servo motor, the direction perpendicular to the horizontal ground is the parallel Z-axis direction, the X-axis linear module is fixed on the base, the X-axis linear module is connected with the Y-axis linear module for driving the Y-axis linear module to reciprocate along the X-axis direction, the Y-axis linear module is connected with the Z-axis linear module for driving the Z-axis linear module to reciprocate along the Y-axis direction, the Z-axis linear module is connected with the mounting seat for driving the mounting seat to reciprocate along the Z-axis direction, the A rotating shaft is rotationally connected with the mounting seat and the rotation center extension line of the A rotating shaft is parallel to the X-axis, the third servo motor is fixed on the mounting seat for driving the A rotating shaft to rotate, and the polishing tool is fixed on the A rotating shaft and rotates around the rotation center of the A rotating shaft.

[0012] Preferably, the jig assembly comprises a driving member, an inner supporting rod, a fixed block, and a cylindrical barrel, the driving member is fixed on the second rotation driving assembly, the fixed block is fixed on the driving member, the fixed block is provided with a through hole penetrating through itself, one end of the cylindrical barrel penetrates into the through hole and is fixedly connected with the inner wall of the through hole, and the cylindrical barrel is vertically arranged, the cylindrical barrel is surrounded by a plurality of elastic sheets, one end of each of the plurality of elastic sheets away from the outer side of the fixed block is provided with a protruding block, a plurality of the protruding blocks surround to form a circular block, the inner supporting rod penetrates into the inner hole of the cylindrical barrel, and the top of the inner supporting rod is provided with an inverted circular table, and the driving member is connected with the inner supporting rod for driving the inner supporting rod to ascend and descend.

[0013] Preferably, the number of the second rotation driving assemblies is one more than the number of the four-axis motion platforms, and the position of one of the second rotation driving assemblies not matched with the four-axis motion platforms is an idle position.

[0014] Preferably, one side of the base is also provided with an automatic feeding mechanism, the automatic feeding mechanism comprises a feeding rack, a tray, a first linear module, a second linear module, a third linear module, a first pneumatic clamp jaw, the feeding rack is on one side of the empty position, the first linear module is fixed on the feeding rack, the first linear module is drivingly connected with a first fixed seat, the second linear module is fixed on the first fixed seat, the driving direction of the first linear module and the driving direction of the second linear module are cross staggered and parallel to the horizontal ground, the driving direction of the second linear module is the direction of approaching or moving away from the jig assembly, the second linear module is drivingly provided with a second fixed seat, the third linear module is fixed on the second fixed seat, and the driving direction of the third linear module is perpendicular to the horizontal ground, the third linear module is drivingly provided with a third fixed seat, the first pneumatic clamp jaw is fixed on the third fixed seat, the tray is fixed on the feeding rack and below the first pneumatic clamp jaw and located in the driving direction of the first linear module and the second linear module, a plurality of accommodation grooves are concave on the top surface of the tray for accommodating workpieces, and a plurality of the accommodation grooves are arranged in an array.

[0015] Preferably, the automatic feeding mechanism further comprises a fourth linear module, a cylinder, and a second pneumatic clamp jaw, the fourth linear module is fixedly connected with the feeding rack, and the fourth linear module is located on one side of the second linear module and has the same driving direction as the second linear module, the fourth linear module is drivingly provided with a fourth fixed seat, the cylinder is fixed on the fourth fixed seat, the driving shaft of the cylinder is downward perpendicular to the horizontal ground and is connected with a fifth fixed seat, the second pneumatic clamp jaw is fixed on the fifth fixed seat, the feeding rack is provided with a transfer feeding seat, and the transfer feeding seat is located on one side of the tray in the driving direction of the first linear module, the top surface of the transfer feeding seat is concave with a limiting groove for positioning the workpiece and limiting the movement of the workpiece on the horizontal plane.

[0016] Preferably, the base is provided with a fifth linear module, the fifth linear module is connected with the feeding rack for driving the feeding rack to move, and the driving direction of the fifth linear module is the same as that of the first linear module.

[0017] The application has the beneficial technical effects that: the four-axis motion platform drives the polishing tool to move along the X-axis, Y-axis, Z-axis and A-axis, so that the polishing tool has a wide range of movement, and the polishing tool is further moved to close to the workpiece to realize automatic polishing of the workpiece and a wide polishing range; the four-axis motion platform is arranged in alignment with a jig assembly, so that multiple workpieces are polished at the same time, the polishing efficiency is high; the first rotating drive assembly drives the rotating disc to rotate in an intermittent manner, so that the corresponding polishing tool polishes the corresponding surface of the workpiece, and then the workpiece is rotated and aligned to another polishing tool; and the second rotating drive assembly drives the jig assembly to rotate in an intermittent manner, so that the workpiece is rotated to change the surface and the polishing tool is matched and aligned for polishing, the multi-surface polishing assembly has the functions of rotating the disc and rotating the jig assembly to flow to each polishing station, the flow speed is fast, the polishing efficiency is high, and the device is suitable for mass production of workpieces; the jig assembly replaces manual fixing of the workpiece, so that the hands of workers are not hurt. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 FIG. 1 is a structural schematic diagram of a rotating disc type polishing machine according to the present embodiment.

[0019] Figure 2 FIG. 4 is a connection structural schematic diagram of the second rotating drive assembly and the jig assembly according to the present embodiment.

[0020] Figure 3 FIG. 6 is a first angle schematic diagram of an automatic feeding mechanism according to the present embodiment.

[0021] Figure 4 FIG. 7 is a second angle schematic diagram of the automatic feeding mechanism according to the present embodiment.

[0022] Label: 1, base; 11, fifth linear module; 2, first rotary drive assembly; 21, first cam divider; 22, first servo motor; 3, rotary table; 4, second rotary drive assembly; 41, second servo motor; 42, second cam divider; 5, jig assembly; 51, driving piece; 52, inner support rod; 53, fixed block; 54, cylindrical barrel; 541, elastic sheet; 542, circular block; 543, limiting support block; 6, four-axis motion platform; 61, X-axis linear module; 62, Y-axis linear module; 63, Z-axis linear module; 64, mounting seat; 65, A rotating shaft; 66, third servo motor; 7, polishing tool; 8, automatic feeding mechanism; 81, feeding rack; 811, base; 812, fixed plate; 8121, supporting leg; 8122, connecting plate; 8123, intermediate feeding seat; 82, tray; 821, accommodating groove; 83, first linear module; 831, first fixed seat; 8311, gantry; 84, second linear module; 841, second fixed seat; 85, third linear module; 851, third fixed seat; 86, first pneumatic clamping jaw; 87, fourth linear module; 871, fourth fixed seat; 88, air cylinder; 881, fifth fixed seat; 89, second pneumatic clamping jaw; 810, intermediate feeding seat. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present application.

[0024] Reference Figure 1 and Figure 2The utility model provides a kind of rotary table type polisher, including base 1, the top of base 1 is provided with first rotation drive component 2, first rotation drive component 2 is provided with rotary table 3, first rotation drive component 2 is used to drive rotary table 3 intermittent rotation, rotary table 3 is parallel to horizontal ground, the top of rotary table 3 is provided with a plurality of second rotation drive components 4 around arrangement along its rotation center, each second drive component top is provided with fixture component 5 for fixed workpiece, second rotation drive component 4 drives fixture component 5 intermittent rotation, the top of base 1 is further provided with a plurality of four-axis motion platform 6, a plurality of four-axis motion platform 6 is around arrangement along rotary table 3 rotation center, each four-axis motion platform 6 is driven to be provided with polishing tool 7, and polishing tool 7 is moved along X axis, Y axis, Z axis, A axis by four-axis motion platform 6 drive, the type of a plurality of four-axis motion platform 6 setting polishing tool 7 is different, further, the number of four-axis motion platform 6 is 3, the number of second rotation drive component 4 is 4, and in initial state, each four-axis motion platform 6 has one fixture component 5 of second rotation drive component 4 setting and is positioned with it, and polishing tool 7 is driven by four-axis motion platform 6 to polish the workpiece fixed to the fixture component 5 positioned with it, the position of one second rotation drive component 4 is idle position, and each polishing tool 7 corresponds to the different polishing surface of workpiece, and is intermittently rotated by first rotation drive component 2 drive, realizes workpiece position replacement, so that the same workpiece realizes flow to corresponding different polishing tool 7, and is intermittently rotated by second rotation drive component 4 drive fixture component 5, realizes workpiece rotation and changes surface, so that the corresponding polishing surface of workpiece is corresponded to corresponding polishing tool 7;Polishing tool 7 is moved along X axis, Y axis, Z axis, A axis by four-axis motion platform 6 drive, so that the activity range of polishing tool 7 is wide, further realizes that polishing tool 7 is active to close workpiece, realizes automatic polishing to workpiece and wide polishing range, by arranging four-axis motion platform 6 with one fixture component 5 positioned, realizes that a plurality of workpieces are polished simultaneously, and the polishing efficiency is high;The multi-surface polishing set of workpiece is collected in device, by rotary table 3 rotation and the rotation of fixture component 5, flow to each polishing station, the flow speed is fast, so that the polishing efficiency is high, is suitable for mass production of workpiece, by fixture component 5 instead of manual fixation workpiece, avoid the harm of worker's hand;By one second rotation drive component 4 and the fixture component 5 driven setting of second rotation drive component 4 are in idle position, in the case of not stopping, workpiece is fed, further improve the polishing efficiency of workpiece.

[0025] Refer to Figure 1 And Figure 2, further, the first rotating drive assembly 2 comprises a first cam divider 21 and a first servo motor 22, the first cam divider 21 is fixedly connected with the base 1, the first servo motor 22 (not shown in the figure) is connected with the input end of the first cam divider 21, and the output end of the first cam divider 21 is connected with the rotating disc 3; the second rotating drive assembly 4 comprises a second cam divider 42 and a second servo motor 41, the second cam divider 42 is fixedly connected with the rotating disc 3, the second servo motor 41 is connected with the input end of the second cam divider 42, and the output end of the second cam divider 42 is connected with the jig assembly 5, the cam divider is used for accurately dividing the rotating motion of the driving shaft of the servo motor into several fixed and equally spaced stages, according to the design of the cam, the output of the cam divider will produce timed and equally spaced pauses or motions, the cam divider is prior art, which will not be described in detail in the present application, the intermittent rotation of the jig assembly 5 and the rotating disc 3 is realized through the cam divider, the workpiece flow is transferred to the different polishing tools 7, and the corresponding polishing surface of the workpiece is correspondingly polished to the corresponding polishing tool 7.

[0026] With reference to Figure 1 , further, the four-axis motion platform 6 comprises an X-axis linear module 61, a Y-axis linear module 62, a Z-axis linear module 63, a mounting seat 64, an A rotating shaft 65 and a third servo motor 66, the direction perpendicular to the horizontal ground is parallel to the Z-axis direction, the X-axis linear module 61 is fixed on the base 1, the X-axis linear module 61 is connected with the Y-axis linear module 62 for driving the Y-axis linear module 62 to reciprocate along the X-axis direction, the Y-axis linear module 62 is connected with the Z-axis linear module 63 for driving the Z-axis linear module 63 to reciprocate along the Y-axis direction, the Z-axis linear module 63 is connected with the mounting seat 64 for driving the mounting seat 64 to reciprocate along the Z-axis direction, the A rotating shaft 65 is rotationally connected with the mounting seat 64, and the rotation center extension line of the A rotating shaft 65 is parallel to the X-axis, the third servo motor 66 is fixed on the mounting seat 64 for driving the A rotating shaft 65 to rotate, the polishing tool 7 is fixed on the A rotating shaft 65 and rotates with the A rotating shaft 65 around the rotation center thereof, the jig assembly 5 is at one end directed by the Y-axis linear module 62, the polishing tool 7 is driven to abut against the workpiece to polish the workpiece through the Y-axis linear module 62, the polishing path of the polishing tool 7 in the X-axis direction is expanded through the X-axis linear module 61, the polishing path of the polishing tool 7 in the Z-axis direction is expanded through the Z-axis linear module 63, the polishing tool 7 is driven to swing around the direction parallel to the X-axis through the third servo motor 66, the polishing tool 7 is multi-angle polished to the workpiece in the Z-axis direction, thereby the polishing range of the polishing tool 7 is wide and the polishing tool 7 is flexible, which is suitable for complex workpieces.

[0027] With reference to Figure 1, further, three four-axis motion platform 6 driven polishing tool 7, the first polishing tool 7 is selected as flexible abrasive belt polishing, specifically set a base, the base is connected with A rotating shaft 65 fixedly, the base is provided with a runner and is provided with a servo motor driving the runner to rotate, and the base is further provided with a fixed tensioner and a movable tensioner, the runner, the fixed tensioner and the movable tensioner form a stable triangular transmission route and are sleeved with the abrasive belt, the abrasive belt is provided with polishing power by the runner rotation, the movable tensioner is connected with the cylinder to make it active to facilitate the abrasive belt replacement and installation and realize the adjustment of the tightness of the abrasive belt, the abrasive belt is pressed against the workpiece to polish the profile of the polishing surface to realize the arc surface polishing; the second polishing tool 7 is selected as sandpaper polishing, specifically a base is provided, a servo motor is arranged on the base, a grinding disc is driven by the servo motor, and sandpaper is fixed on the grinding disc, the grinding disc is driven to rotate by the servo motor to drive the sandpaper to rotate and polish the workpiece, and the grinding disc has high flatness and is suitable for polishing the plane of the workpiece; the third polishing tool 7 is selected as circular grinding wheel polishing, specifically a base is provided, a servo motor is arranged on the base, a circular wheel is driven by the servo motor, a circular abrasive belt is sleeved on the circumferential side of the circular wheel, the circular abrasive belt is rotated by driving the circular wheel to rotate by the servo motor, and the circumferential wall of the circular wheel is used to polish the workpiece to form a circumferential chamfer of the workpiece.

[0028] Referring to Figure 1 and Figure 2 , further, the jig assembly 5 includes a driving member 51, an inner support rod 52, a fixed block 53, a cylindrical barrel 54, the driving member 51 is fixedly connected to the output end of the second cam divider, the fixed block 53 is fixed on the driving member 51, the fixed block 53 is provided with a through hole penetrating through itself, one end of the cylindrical barrel 54 penetrates into the through hole and is fixedly connected with the inner wall of the through hole, and the cylindrical barrel 54 is vertically arranged, the cylindrical barrel 54 is surrounded by a plurality of elastic sheets 541, the outer side of one end of the plurality of elastic sheets 541 away from the fixed block 53 is protrudingly provided with a protrusion, the plurality of protrusions surround to form a circular block 542, the bottom outer side of the circular block 542 is provided with a limiting support block 543, the inner support rod 52 penetrates into the inner hole of the cylindrical barrel 54, and the top of the inner support rod 52 is provided with an inverted circular table, the driving member 51 is connected with the inner support rod 52 for driving the inner support rod 52 to ascend and descend, and the driving member 51 is preferably a cylinder 88, the jig assembly 5 is matched with the positioning and fixing of the workpiece with a central hole, especially for the watch shell, the circular block 542 penetrates into the central hole of the workpiece, the bottom surface of the workpiece abuts against the limiting support block 543, the position of the workpiece in the horizontal direction and the vertical direction is positioned, and the inner support rod 52 is driven to descend by the driving member 51, so that the circular table abuts against the inner side of the elastic sheet 541 to expand the elastic sheet 541, so that the elastic sheet 541 is pressed against the inner wall of the inner hole of the workpiece, the workpiece is fixed, and the workpiece is not easy to separate from the jig assembly 5 in the polishing process.

[0029] Referring to Figure 1 andFigure 3Further, the base 1 is provided with an automatic feeding mechanism 8 on one side, the automatic feeding mechanism 8 comprises a feeding rack 81, a tray 82, a first linear module 83, a second linear module 84, a third linear module 85, a first pneumatic clamp jaw 86, the feeding rack 81 is located on one side of the empty position, the feeding rack 81 comprises a base 811 and a fixed plate 812 provided on the top of the base 811, the first linear module 83 is fixed on the top surface of the fixed plate 812, the first linear module 83 is drivingly connected with a first fixed seat 831, the first fixed seat 831 is provided with a gantry 8311, the second linear module 84 is fixed on the crossbeam of the gantry 8311, and the driving directions of the first linear module 83 and the second linear module 84 are crosswise arranged and parallel to the horizontal ground, the driving direction of the second linear module 84 is the direction close to or away from the jig assembly 5, the second linear module 84 is drivingly provided with a second fixed seat 841, the third linear module 85 is fixed on the second fixed seat 841, the driving direction of the third linear module 85 is perpendicular to the horizontal ground, the third linear module 85 is drivingly provided with a third fixed seat 851, the first pneumatic clamp jaw 86 is fixed on the third fixed seat 851 for clamping the workpiece or releasing the clamping of the workpiece, the top of the fixed plate 812 is provided with a support 8121 at both ends of the driving direction of the first linear module 83, the top surfaces of the supports 8121 are jointly connected with a connecting plate 8122, the tray 82 is connected and fixed with the connecting plate 8122 and is located above the first fixed seat 831 and between the two vertical rods of the gantry 8311, the top surface of the tray 82 is concavely provided with a plurality of accommodation grooves 821 for accommodating the workpiece, the plurality of accommodation grooves 821 are arranged in a display manner, the workpiece is positioned by being placed into the accommodation groove 821, and the top of the workpiece extends outside the accommodation groove 821 for being clamped by the first pneumatic clamp jaw 86, the first pneumatic clamp jaw 86 is a thumb air cylinder 88, the driving finger of the thumb air cylinder 88 is provided with a clamping block, the workpiece is clamped by driving the clamping block to be close by the thumb air cylinder 88, and the workpiece is clamped by driving the clamping block to be away from the thumb air cylinder 88.When the workpiece is loaded, the first fixed seat 831 is driven by the first linear module 83 to move the second linear module 84 to move so that the first pneumatic clamping jaw 86 can be aligned with the workpieces arranged in a row in the length direction of the tray 82. The second fixed seat 841 is driven by the second linear module 84 to move the first pneumatic clamping jaw 86 to align with the workpieces arranged in a column in the width direction of the tray 82. The first pneumatic clamping jaw 86 is driven by the third linear module 85 to move up and down to move the first clamping jaw to the position of clamping the workpiece to grab the workpiece away from the containing groove 821. The first pneumatic clamping jaw 86 is driven by the first linear module 83 to move in the direction of the jig assembly 5 so that the workpiece is moved to the position of the aligned empty jig assembly 5. The first pneumatic clamping jaw 86 is driven by the second linear module 84 to move in the direction of the jig assembly 5 so that the workpiece is moved to the position directly above the aligned jig assembly 5. Finally, the first pneumatic clamping jaw 86 is driven by the third linear module 85 to move down to achieve the workpiece placed on the jig assembly 5 to get the positioning and fixing of the jig assembly 5, thereby realizing the automatic loading operation. The workpiece is placed back into the tray 82 through the reverse path driving of the first linear module 83, the second linear module 84 and the third linear module 85 to realize the automatic unloading of the workpiece. The automatic loading and unloading mechanism 8 is used to automatically load and unload the workpiece, which reduces manual operation and further improves the process of polishing automation to make the workpiece polishing effect higher. At the same time, it saves the labor cost. Further, the number of the first pneumatic clamping jaw 86 is two, and the two first pneumatic clamping jaws 86 are arranged in the driving direction of the first linear module 83, which realizes one loading and one unloading, and is beneficial to improve the efficiency of automatic loading and unloading of the workpiece.

[0030] Referring to Figure 3 and Figure 4Further, the automatic feeding mechanism 8 further comprises a fourth linear module 87, a pneumatic cylinder 88, and a second pneumatic clamp jaw 89. The fourth linear module 87 is fixed to the side of the crossbeam of the gantry 8311 away from the second linear module 84. The fourth linear module 87 has the same driving direction as the second linear module 84. The fourth linear module 87 drives a fourth fixed seat 871. The pneumatic cylinder 88 is fixed to the fourth fixed seat 871. The driving shaft of the pneumatic cylinder 88 is downward and perpendicular to the horizontal ground, and a fifth fixed seat 881 is connected to the driving shaft. The second pneumatic clamp jaw 89 is fixed to the fifth fixed seat 881. The structure and function of the second pneumatic clamp jaw 89 are the same as those of the first pneumatic clamp jaw 86. A transfer material placing seat 8123 is arranged on the connecting plate 8122 and is located on the side of the material tray 82 in the driving direction of the first linear module 83. A limiting groove is concavely arranged on the top surface of the transfer material placing seat 8123 for positioning the workpiece and limiting the movement of the workpiece on the horizontal plane. During the automatic feeding and discharging process of the automatic feeding mechanism 8, the first fixed seat 831 is driven by the first linear module 83 to move in the length direction of the material tray 82, thereby driving the fourth linear module 87 and the second pneumatic clamp jaw 89 to move in the length direction of the material tray 82. Then, the second pneumatic clamp jaw 89 is driven by the fourth linear module 87 to move in the width direction of the material tray 82. Then, the second pneumatic clamp jaw 89 is driven by the pneumatic cylinder 88 to ascend and descend, thereby realizing the grabbing of the workpieces at different positions on the material tray 82 by the second pneumatic clamp jaw 89 and the transfer of the workpieces to the transfer material placing seat 8123 and realizing the transfer and placement of the workpieces on the transfer material placing seat 8123 to the material tray 82 by the second pneumatic clamp jaw 89. The first pneumatic clamp jaw 86 realizes the grabbing of the workpieces on the transfer material placing seat 8123 to the jig assembly 5 for feeding and the placement of the workpieces on the jig assembly 5 to the transfer material placing seat 8123 for discharging by the driving of the first linear module 83 and the second linear module 84. The second pneumatic clamp jaw 89 takes materials at the same time as the first pneumatic clamp jaw 86, thereby realizing the placement of a standby material on the transfer material placing seat 8123 each time. After the first pneumatic clamp jaw 86 feeds the grabbed workpieces to the jig assembly 5, the first pneumatic clamp jaw 86 moves to the position of the transfer material placing seat 8123 to grab the workpieces on the transfer material placing seat 8123 for feeding again, thereby shortening the feeding stroke and improving the overall feeding speed.

[0031] With reference to Figure 1 and Figure 3 Further, the base 1 is provided with a fifth linear module 11 connected with the base 811 for driving the overall movement of the automatic feeding mechanism 8. The driving direction of the fifth linear module 11 is the same as that of the first linear module 83, thereby realizing the driving of the automatic feeding mechanism 8 away from the idle position for avoiding the workers during the equipment maintenance.

[0032] The rotary table 3 type polishing machine further comprises a control system, the first servo motor 22, the second servo motor 41, the third servo motor 66, the X-axis linear module 61, the Y-axis linear module 62, the Z-axis linear module 63, the polishing tool 7, the first linear module 83, the second linear module 84, the third linear module 85, the fourth linear module 87, the fifth linear module 11, the air cylinder 88, the first pneumatic clamping jaw 86 and the second pneumatic clamping jaw 89 are all in signal connection with the control system, and the control system controls the cooperation and operation of various components through a program to realize automatic control.

[0033] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A rotary disc sander characterised in that: The base top is provided with a first rotation driving assembly, the first rotation driving assembly is provided with a rotating disc, the first rotation driving assembly is used for driving the rotating disc to rotate intermittently, the rotating disc is parallel to the horizontal ground, and the rotating disc top is provided with a plurality of second rotation driving assemblies which are arranged around the rotating center of the rotating disc, the top of each second rotation driving assembly is provided with a jig assembly used for fixing a workpiece or releasing the fixing of the workpiece, and the second rotation driving assembly drives the jig assembly to rotate intermittently. The base top is also provided with a plurality of four-axis motion platforms which are arranged around the rotating center of the rotating disc, each four-axis motion platform is positioned with one second rotation driving assembly, and each four-axis motion platform is driven to be provided with a polishing tool, the polishing tool moves along the X-axis, the Y-axis, the Z-axis and the A-axis through the driving of the four-axis motion platform, and the types of the polishing tools provided by the plurality of four-axis motion platforms are different. The control system is further provided, and the first rotation driving assembly, the second rotation driving assembly and the four-axis motion platform are in signal connection with the control system.

2. A rotary disc sander as claimed in claim 1, characterized in that: The first rotation driving assembly comprises a first cam divider and a first servo motor, the first cam divider is fixedly connected with the base, the first servo motor is connected with the input end of the first cam divider, and the output end of the first cam divider is connected with the rotating disc.

3. A rotary disc sander as claimed in claim 1, characterized in that: The second rotation driving assembly comprises a second cam divider and a second servo motor, the second cam divider is fixedly connected with the rotating disc, the second servo motor is connected with the input end of the second cam divider, and the output end of the second cam divider is connected with the jig assembly.

4. A rotary disc sander as claimed in claim 1, characterized in that: The four-axis motion platform comprises an X-axis linear module, a Y-axis linear module, a Z-axis linear module, a mounting seat, an A-rotation shaft and a third servo motor, the direction perpendicular to the horizontal ground is the parallel Z-axis direction, the X-axis linear module is fixed on the base, the X-axis linear module is connected with the Y-axis linear module and used for driving the Y-axis linear module to reciprocate along the X-axis direction, the Y-axis linear module is connected with the Z-axis linear module and used for driving the Z-axis linear module to reciprocate along the Y-axis direction, the Z-axis linear module is connected with the mounting seat and used for driving the mounting seat to reciprocate along the Z-axis direction, the A-rotation shaft is rotationally connected with the mounting seat, the rotation center extension line of the A-rotation shaft is parallel to the X-axis, the third servo motor is fixed on the mounting seat and used for driving the A-rotation shaft to rotate, and the polishing tool is fixed on the A-rotation shaft and rotates around the rotation center of the A-rotation shaft.

5. A rotary disc sander as claimed in claim 1, characterized in that: The jig assembly comprises a driving member, an inner support rod, a fixed block, a cylindrical barrel, the driving member is fixed on the first rotary driving assembly, the fixed block is fixed on the driving member, the fixed block is provided with a through hole penetrating through itself, one end of the cylindrical barrel penetrates into the through hole and is fixedly connected with the inner wall of the through hole, the cylindrical barrel is vertically arranged, the cylindrical barrel is surrounded by a plurality of elastic sheets, one end of each of the plurality of elastic sheets away from the outer side of the fixed block is provided with a protruding block, a plurality of protruding blocks surround to form a circular block, the inner support rod penetrates into the inner hole of the cylindrical barrel, and the top of the inner support rod is provided with an inverted circular table, the driving member is connected with the inner support rod for driving the inner support rod to rise and fall.

6. A rotary disc sander as claimed in claim 1, characterized in that: The number of the second rotary driving assemblies is one more than the number of the four-axis motion platforms, and the position of one of the second rotary driving assemblies not matched with the four-axis motion platform is an idle position.

7. A rotary disc sander as claimed in claim 6, characterized in that: The base is further provided with an automatic feeding mechanism, the automatic feeding mechanism comprises a feeding rack, a tray, a first linear module, a second linear module, a third linear module, a first pneumatic clamp jaw, the feeding rack is located on one side of the idle position, the first linear module is fixed on the feeding rack, the first linear module is drivingly connected with a first fixed seat, the second linear module is fixed on the first fixed seat, the driving directions of the first linear module and the second linear module are crosswise arranged and parallel to the horizontal ground, the driving direction of the second linear module is the direction of approaching or moving away from the jig assembly, the second linear module is drivingly provided with a second fixed seat, the third linear module is fixed on the second fixed seat, and the driving direction of the third linear module is perpendicular to the horizontal ground, the third linear module is drivingly provided with a third fixed seat, the first pneumatic clamp jaw is fixed on the third fixed seat, the tray is fixed on the feeding rack and located below the first pneumatic clamp jaw and in the driving direction of the first linear module and the second linear module, the top surface of the tray is concavely provided with a plurality of accommodation grooves for accommodating workpieces, and the plurality of accommodation grooves are arranged in an array.

8. A rotary disc sander as claimed in claim 7, characterised in that: The automatic feeding mechanism further comprises a fourth linear module, a cylinder and a second pneumatic clamp jaw, the fourth linear module is fixedly connected with the feeding rack, and the fourth linear module is located on one side of the second linear module and has the same driving direction as the second linear module, the fourth linear module is drivingly provided with a fourth fixed seat, the cylinder is fixed on the fourth fixed seat, the driving shaft of the cylinder is downwardly perpendicular to the horizontal ground and is connected with a fifth fixed seat, the second pneumatic clamp jaw is fixed on the fifth fixed seat, the feeding rack is provided with a transfer feeding seat, and the transfer feeding seat is located on one side of the tray in the driving direction of the first linear module, and the top surface of the transfer feeding seat is concavely provided with a limiting groove for positioning the workpiece and limiting the movement of the workpiece on the horizontal plane.

9. A rotary disc sander as claimed in claim 7, characterized in that: The fifth linear module is arranged on the base and connected with the material placing frame for driving the material placing frame to move.

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