Polishing and grinding device

Abstract

The utility model relates to the technical field of polishing and grinding, in particular to a polishing and grinding device which comprises a three-axis moving driving frame, a swing seat, a swing driving assembly, a rotary driving assembly and a polishing wheel. The swing driving assembly is connected with the connecting rotating shaft and used for driving the connecting rotating shaft to rotate and locking the connecting rotating shaft at multiple positions in the rotating direction, and the rotating driving assembly is fixedly connected with the swing base and connected with the polishing wheel and used for driving the polishing wheel to rotate. The rotating center extension line of the polishing wheel is perpendicular to the axis of the connecting rotating shaft, the swing base and the rotating driving assembly connected with the swing base are driven by the three-axis moving driving frame to move in a reciprocating mode in the X-axis direction, the Y-axis direction and the Z-axis direction, the polishing and grinding range is wide, the time for adjusting the workpiece swing direction is saved, and the polishing and grinding efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of polishing and grinding, and more particularly to a polishing and grinding device. BACKGROUND

[0002] Polishing and grinding refers to a processing method for reducing the roughness of a workpiece surface by using mechanical, chemical or electrochemical action to obtain a bright and smooth surface. The specific implementation is a modification and processing of the workpiece surface by means of a polishing tool and abrasive particles or other polishing media.

[0003] The main polishing and grinding mechanisms on the market are mainly hand-held polishing machines and non-handheld polishing machines, and the non-handheld polishing machines can be divided into round tube polishing machines, disc polishing machines, numerical control polishing machines and mold polishing machines. Among them, disc polishing machines are widely used in production and application. The materials of the products to be polished and ground are mainly copper, iron, zinc and stainless steel, and they are mostly used in industrial production.

[0004] In the prior art, the way of polishing and grinding workpieces is too single, and most of them use hand-held polishing equipment to polish workpieces, which cannot meet the production needs of the existing production environment. However, the non-handheld polishing and grinding mechanism is installed by hard limiting installation, so that the polishing and grinding device and the workpiece to be polished are in fixed positions during the polishing and grinding process, and the position of the polishing wheel on the polishing and grinding device cannot be freely adjusted, resulting in low polishing and grinding efficiency.

[0005] Since the position of the polishing wheel cannot be freely adjusted, it is very difficult to polish workpieces that need to be polished with inclined surfaces, which is not conducive to polishing and grinding production. Since the polishing wheel and the workpiece to be polished are in fixed positions, the polishing and grinding range is limited, and multiple area polishing cannot be performed, which further reduces the polishing and grinding efficiency of the polishing and grinding mechanism.

[0006] In view of this, in order to overcome the above technical problems, the present application designs a polishing and grinding device to solve the above technical problems. CONTENT OF THE INVENTION

[0007] In order to solve the problem that the non-handheld polishing equipment is used to polish workpieces in the prior art, and the polishing and grinding device and the workpiece to be polished are in fixed positions, and the polishing and grinding range is limited, the present application provides a polishing and grinding device.

[0008] The polishing grinding device comprises a three-axis moving driving frame, a swing seat, a swing driving assembly, a rotary driving assembly, and a polishing wheel, the swing seat is provided with a connecting rotating shaft, the connecting rotating shaft is rotationally connected with the three-axis moving driving frame, the swing driving assembly is connected with the connecting rotating shaft for driving the connecting rotating shaft to rotate and realizing the locking of the connecting rotating shaft at multiple positions in the rotating direction, the rotary driving assembly is fixedly connected with the swing seat, the rotary driving assembly is connected with the polishing wheel for driving the polishing wheel to rotate, the rotating center extension line of the polishing wheel is vertically arranged with the axis center line of the connecting rotating shaft, and the swing seat and the rotary driving assembly connected with the swing seat are driven by the three-axis moving driving frame to reciprocatingly move along the X, Y and Z three-axis directions.

[0009] Preferably, the three-axis moving driving frame comprises a base, an intermediate seat, a vertical seat, a mounting seat, an X-axis linear module, a Y-axis linear module and a Z-axis linear module, the X-axis linear module is fixed on the base and the driving direction of the X-axis linear module is parallel to the X-axis, the X-axis linear module is connected with the intermediate seat for driving the intermediate seat to reciprocatingly move along the X-axis direction, the Y-axis linear module is fixed on the intermediate seat and the driving direction of the Y-axis linear module is parallel to the Y-axis, the Y-axis linear module is connected with the vertical seat for driving the vertical seat to reciprocatingly move along the Y-axis direction, and the Z-axis linear module is fixed on the vertical seat and the driving direction of the Z-axis linear module is parallel to the Z-axis, the Z-axis linear module is connected with the mounting seat for driving the mounting seat to reciprocatingly move along the Z-axis direction.

[0010] Preferably, the swing driving assembly comprises a first servo motor and a speed reducer, the speed reducer is connected with the first servo motor, the speed reducer is fixed on the mounting seat and connected with the connecting rotating shaft.

[0011] Preferably, the rotary driving assembly comprises a second servo motor and a tool sleeve, the second servo motor is fixed on the swing seat and the driving shaft of the second servo motor is vertically arranged with the connecting rotating shaft, the tool sleeve is fixed on the driving shaft of the second servo motor, the polishing wheel comprises a circular wheel body and a tool handle arranged at the center of the circular wheel body, the tool handle is sleeved into the tool sleeve, the tool sleeve is used for automatically clamping and fixing the tool handle and releasing the clamping and fixing of the tool handle, and the center of the circular wheel body is in the same straight line with the axis center of the driving shaft of the second servo motor.

[0012] Preferably, the system further includes a consumable replacement assembly, which includes a mounting bracket, a third servo motor, and a rotary cutter head. The second servo motor is fixed to the mounting bracket and supported by it, with its direction perpendicular to the ground being parallel to the Z-axis. The third servo motor is positioned above the three-axis motion drive frame, and its drive shaft is parallel to the Z-axis. The drive shaft of the third servo motor faces the three-axis motion drive frame, and a rotary cutter head is fixed to it. The rotation center of the rotary cutter head is collinear with the axis of the drive shaft of the third servo motor. The rotating cutter head has several semi-circular grooves extending through its thickness on its circumference. A semi-circular ring support is provided on the side wall of the semi-circular groove. The semi-circular grooves are arranged around the rotation center of the rotating cutter head. The outer wall of the tool holder is provided with an annular groove matching the size of the semi-circular ring support. The semi-circular ring support is inserted into the annular groove to support the tool holder. The third servo motor drives the rotating cutter head to rotate. The rotation of the rotating cutter head causes the semi-circular grooves to align with the tool sleeve one by one, and the tool holder in the semi-circular groove aligns with the infeed hole of the tool sleeve.

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

[0014] 1. A three-axis moving drive frame drives a swing base and a rotary drive assembly connected to the swing base to reciprocate along the X, Y, and Z axes, thereby driving the polishing wheel to reciprocate along the X, Y, and Z axes. This brings the polishing wheel close to the workpiece in the three axial directions. The rotary drive assembly drives the polishing wheel to rotate, providing the polishing wheel with the driving force to polish the workpiece. The swing drive assembly drives the connecting shaft to rotate and locks it at multiple positions in the rotation direction, causing the swing base to swing and driving the polishing wheel to swing. This allows the polishing wheel to have multiple tilt angles in one axial direction to adapt to the workpiece with inclined surfaces that need to be polished. The polishing wheel moves in three axial directions to get close to the workpiece and polish it. The swing angle can adapt to different positions and angles of inclined surfaces on the workpiece, resulting in a wide polishing range. This helps to save time in adjusting the workpiece's swing direction and improves polishing efficiency.

[0015] 2. The three-axis moving drive frame drives the swing seat through the linear module to move the polishing wheel along the X, Y, and Z axes, so that the polishing wheel has high displacement accuracy and can be locked in multiple positions for polishing.

[0016] 3. By setting up a consumable replacement component, the polishing wheels can be automatically replaced, reducing manual replacement and lowering the labor intensity of workers. The consumable replacement component fixes polishing wheels of different sizes and types on several semi-circular grooves set on the rotating cutter head. A servo motor drives the rotating cutter head to rotate, aligning the semi-circular grooves with the tool holders and the tool shanks on the polishing wheels with the tool holder infeed holes. A three-axis motion drive frame drives the tool holders to move towards the rotating cutter head, so that the tool shanks are fitted into the tool holders and fixed. Then, the three-axis motion drive frame drives the tool holders to move the polishing wheels out of the semi-circular grooves and onto the semi-circular ring support platform, realizing automatic loading and installation of polishing wheels. In the tool holder, a three-axis moving drive unit drives the tool holder to move the tool holder towards the rotating cutter head, so that the annular groove of the tool holder aligns with the semi-circular ring support platform in the semi-circular groove on the horizontal surface. Then, the three-axis moving drive unit drives the tool holder to move the tool holder from the side opening of the semi-circular groove into the semi-circular groove, so that the semi-circular ring support platform is locked into the annular groove. The tool holder releases the fixation of the tool holder, so that the polishing wheel is automatically unloaded onto the rotating cutter head. The polishing wheel is automatically loaded into the tool holder and automatically unloaded from the tool holder onto the rotating cutter head, so that the polishing wheel can be automatically replaced. This makes it easy to change different polishing wheels to polish and grind the workpiece, so that the workpiece can have different grinding effects. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a polishing and grinding device according to this embodiment.

[0018] Figure 2 This is a schematic diagram of the connection between the consumable replacement component and the polishing wheel in this embodiment.

[0019] Reference numerals: 1. Three-axis moving drive frame; 11. Base; 12. Intermediate seat; 13. Stand; 14. Mounting seat; 15. X-axis linear module; 16. Y-axis linear module; 17. Z-axis linear module; 2. Swing seat; 21. Connecting shaft; 3. Swing drive assembly; 31. First servo motor; 32. Reducer; 4. Rotary drive assembly; 41. Second servo motor; 42. Tool holder; 5. Polishing wheel; 51. Circular wheel body; 52. Tool holder; 521. Annular groove; 6. Consumable replacement assembly; 61. Mounting bracket; 62. Third servo motor; 63. Rotary tool disc; 631. Semi-circular groove; 632. Semi-circular ring support platform. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] ReferenceFigure 1 A polishing and grinding device includes a three-axis moving drive frame 1, a swing seat 2, a swing drive assembly 3, a rotary drive assembly 4, and a polishing wheel 5. The three-axis moving drive frame 1 includes a base 11, an intermediate seat 12, a stand 13, a mounting base 14, an X-axis linear module 15, a Y-axis linear module 16, and a Z-axis linear module 17, with the direction perpendicular to the horizontal bottom surface defined as the direction parallel to the Z-axis. The X-axis linear module 15 is fixed to the base 11, and the driving direction of the X-axis linear module 15 is parallel to the X-axis. The X-axis linear module 15 is connected to the intermediate seat 12 to drive the intermediate seat 12 to reciprocate along the X-axis direction. The Y-axis linear module 16 is fixed to the intermediate seat 12, and the driving direction of the Y-axis linear module 16 is parallel to the Y-axis. Module 16 is connected to the stand 13 to drive the stand 13 to reciprocate along the Y-axis. The Z-axis linear module 17 is fixed on the stand 13 and its driving direction is parallel to the Z-axis. The Z-axis linear module 17 is connected to the mounting base 14 to drive the mounting base 14 to reciprocate along the Z-axis. The intermediate seat 12 is driven to reciprocate along the X-axis by the X-axis linear module 15, thereby driving the stand 13 and the mounting base 14 to reciprocate along the X-axis. The Y-axis linear module 16 drives the stand 13 to reciprocate along the Y-axis, thereby driving the mounting base 14 to reciprocate along the Y-axis. The Z-axis linear module 17 then drives the mounting base 14 to reciprocate along the Z-axis, thus enabling the mounting base 14 to have three displacement directions.

[0022] Reference Figure 1 The swing base 2 is equipped with a connecting shaft 21, which is rotatably connected to the mounting base 14. The swing drive assembly 3 is fixed on the mounting base 14 and connected to the connecting shaft 21, driving the connecting shaft 21 to rotate and locking it in multiple positions in the rotation direction. The rotation drive assembly 4 is fixedly connected to the swing base 2 and connected to the polishing wheel 5, driving the polishing wheel 5 to rotate. The extension line of the rotation center of the polishing wheel 5 is perpendicular to the axis of the connecting shaft 21, and the axis of the connecting shaft 21 is parallel to the X-axis. The rotation of the connecting shaft 21 drives the polishing wheel 5 to rotate. The swing base 2 and the rotary drive assembly 4 fixed on the swing base 2 swing around the axis of the connecting shaft 21, thereby driving the polishing wheel 5 to swing in the direction perpendicular to the X-axis. The swing drive assembly 3 drives the connecting shaft 21 to lock in multiple positions in the rotation direction, so that the polishing wheel 5 has multiple tilt angles in the direction perpendicular to the X-axis to adapt to the workpieces with tilted surfaces that need to be polished. The mounting base 14 has three displacement directions, so that the polishing wheel 5 has three polishing surfaces in three directions, with a wide polishing range, which helps to save the time of adjusting the workpiece swing direction and improve the polishing efficiency.

[0023] Reference Figure 1Furthermore, the swing seat 2 is arranged in the form of a rectangular block. Both ends of the rectangular block are provided with connecting shafts 21, and the center of the end face of the rectangular block is on the same straight line as the axis of the connecting shaft 21. The mounting base 14 is provided with a U-shaped groove, and circular holes penetrating through the ends of the mounting base 14 are provided on the opposite side walls of the U-shaped groove. The diameter of the circular holes matches the diameter of the connecting shaft 21, allowing the connecting shaft 21 to be inserted and rotated. The swing drive assembly 3 includes a first servo motor 31 and a reducer 32, with the reducer 32 connected to the first servo motor 31. The reducer 32 is fixed to one end of the mounting base 14 and the output shaft of the reducer 32 is connected to a connecting shaft 21. The reducer 32 is driven to rotate by the drive shaft of the first servo motor 31. The reducer 32 drives its output shaft to rotate through the meshing transmission of the reducer gear set and makes the output shaft rotation speed lower than the rotation speed of the first servo motor 31, thereby driving the connecting shaft 21 to rotate at a low speed, so that the swing seat 2 swings at a low speed and stably. The connecting shaft 21 can be locked in multiple positions in the rotation direction by the servo control of the first servo motor 31.

[0024] Reference Figure 1 and Figure 2 Furthermore, the rotary drive assembly 4 includes a second servo motor 41 and a tool holder 42. The second servo motor 41 is fixed to the swing base 2. Specifically, a slot matching the outer contour of the second servo motor 41 is provided in the middle of one side of the swing base 2. The second servo motor 41 is inserted into the slot and locked to the swing base 2 by bolts. The drive shaft of the second servo motor 41 is perpendicularly arranged to the connecting shaft 21. The tool holder 42 is fixed to the drive shaft of the second servo motor 41. The polishing wheel 5 includes a circular wheel body 51 and a tool holder disposed on the circular wheel body 51. The tool holder 52 at the center is fitted into the tool sleeve 42. The tool sleeve 42 is used to automatically clamp and fix the tool holder 52 and release the clamping and fixing of the tool holder 52. The center of the circular wheel body 51 and the axis of the drive shaft of the second servo motor 41 are on the same straight line. The tool holder 52 and the tool sleeve 42 that realize automatic clamping and fixing and automatic unclamping are existing technologies, and will not be described in detail in this embodiment. The second servo motor 41 drives the tool sleeve 42 to rotate, thereby driving the polishing wheel 5 to rotate and providing the polishing wheel 5 with the driving force for polishing and grinding the workpiece.

[0025] Reference Figure 1 and Figure 2Furthermore, a polishing and grinding device also includes a consumable replacement assembly 6, which includes a mounting frame 61, a third servo motor 62, and a rotary cutter head 63. A second servo motor 41 is fixed to the mounting frame 61 (not shown in the figure) and supported by the mounting frame 61. The third servo motor 62 is positioned above the three-axis motion drive frame 1, and its drive shaft is parallel to the Z-axis. The drive shaft of the third servo motor 62 faces the three-axis motion drive frame 1, and the rotary cutter head 63 is fixed thereon. The rotary cutter head 63 has several semi-circular grooves 631 extending through its own thickness on its circumference. A semi-circular support platform 632 protrudes from the side wall of the groove 631. The semi-circular grooves 631 are arranged around the rotation center of the rotating cutter head 63. The outer wall of the tool holder 52 is provided with an annular groove 521 that matches the size of the semi-circular support platform 632. The semi-circular support platform 632 is inserted into the annular groove 521 to support the tool holder 52. The third servo motor 62 drives the rotating cutter head 63 to rotate. The rotation of the rotating cutter head 63 causes several semi-circular grooves 631 to align with the tool sleeve 42 one by one, and the tool holder 52 in the semi-circular groove 631 aligns with the infeed hole of the tool sleeve 42. When the semi-circular groove 631 is aligned with the tool sleeve 42, its side slot faces one end of the Y-axis linear module 16.

[0026] Reference Figure 1 and Figure 2By inserting tool holders 52 into several semi-circular grooves 631, the tool holders 52 are supported by semi-circular ring support platforms 632 within the semi-circular grooves 631. The circular wheel bodies 51 connected to the tool holders 52 in each semi-circular groove 631 are of different specifications and are located above the top surface of the rotating tool disc 63. The rotating tool disc 63 is driven to rotate by the third servo motor 62, so that the semi-circular grooves 631 are aligned with the tool sleeves 42 and the polishing wheels 5 in the semi-circular grooves are aligned with the infeed holes of the tool sleeves 42. The mounting base 14 is driven along the Z-axis by the three-axis moving drive frame 1. The directional movement causes the tool holder 42 to rise, allowing the tool holder 52 of the polishing wheel 5 to be inserted into the tool holder 42, and the tool holder 42 to lock and fix the tool holder 52. The three-axis moving drive frame 1 drives the mounting base 14 to move along the Y-axis, causing the tool holder 52 to disengage from the side opening of the semi-circular groove 631 and rotate the blade disc 63, thus automatically feeding the polishing wheel 5 into the tool holder 42. When it is necessary to change to polishing the workpiece with a different specification of polishing wheel 5, the first servo motor 31 drives the connecting shaft 21 to rotate, causing the polishing wheel 5 to flip upward. The second servo motor 41 drives... With the moving shaft parallel to the Z-axis, the mounting base 14 is moved along the X and Y axes by the three-axis moving drive frame 1 to adjust the position of the tool holder 52 so that it is aligned with the side opening of the semi-circular groove 631 in the empty space. Then, the mounting base 14 is moved along the Z-axis by the three-axis moving drive frame 1 to rise, so that the annular groove 521 on the tool holder 52 is aligned with the semi-circular ring support 632 in the semi-circular groove 631. Finally, the mounting base 14 is moved along the Y-axis by the three-axis moving drive frame 1 to move the tool holder 52 through the side opening of the semi-circular groove 631. The tool holder 52 is supported by inserting the semi-circular groove 631 into the semi-circular ring support 632 and inserting the annular groove 521 into the tool holder 52. Finally, the tool sleeve 42 releases its locking mechanism on the tool holder 52, allowing the polishing wheel 5 to be automatically fed onto the rotating cutter head 63. The polishing wheel 5 is automatically loaded into the tool sleeve 42 and automatically fed from the tool sleeve 42 onto the rotating cutter head 63, thus achieving automatic replacement of the polishing wheel 5. This reduces the need for manual replacement, lowers the labor intensity of workers, and allows for different polishing wheels 5 to be used to polish and grind the workpiece, enabling different polishing effects on the workpiece.

[0027] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A polishing and grinding device, characterized in that: The device includes a three-axis moving drive frame, a swing base, a swing drive assembly, a rotary drive assembly, and a polishing wheel. A connecting shaft is mounted on the swing base and is rotatably connected to the three-axis moving drive frame. The swing drive assembly is connected to the connecting shaft to drive its rotation and to lock it in multiple positions along the rotation direction. The rotary drive assembly is fixedly connected to the swing base and to the polishing wheel to drive its rotation. The extended line of the polishing wheel's rotation center is perpendicular to the axis of the connecting shaft. The three-axis moving drive frame drives the swing base and the rotary drive assembly connected to it to reciprocate along the X, Y, and Z axes.

2. The polishing and grinding device according to claim 1, characterized in that: The three-axis motion drive frame includes a base, a middle seat, a vertical seat, a mounting base, an X-axis linear module, a Y-axis linear module, and a Z-axis linear module. The X-axis linear module is fixed to the base and its driving direction is parallel to the X-axis. The X-axis linear module is connected to the middle seat to drive the middle seat to reciprocate along the X-axis. The Y-axis linear module is fixed to the middle seat and its driving direction is parallel to the Y-axis. The Y-axis linear module is connected to the vertical seat to drive the vertical seat to reciprocate along the Y-axis. The Z-axis linear module is fixed to the vertical seat and its driving direction is parallel to the Z-axis. The Z-axis linear module is connected to the mounting base to drive the mounting base to reciprocate along the Z-axis.

3. The polishing and grinding device according to claim 2, characterized in that: The swing drive assembly includes a first servo motor and a reducer. The reducer is connected to the first servo motor, fixed on the mounting base, and connected to the connecting shaft.

4. The polishing and grinding device according to claim 2, characterized in that: The rotary drive assembly includes a second servo motor and a tool holder. The second servo motor is fixed on the swing base, and the drive shaft of the second servo motor is perpendicular to the connecting shaft. The tool holder is fixed on the drive shaft of the second servo motor. The polishing wheel includes a circular wheel body and a tool holder located at the center of the circular wheel body. The tool holder is fitted into the tool holder, and the tool holder is used to automatically clamp and fix the tool holder and release the clamping and fixing of the tool holder. The center of the circular wheel body and the axis of the drive shaft of the second servo motor are on the same straight line.

5. The polishing and grinding device according to claim 4, characterized in that: It also includes a consumable replacement assembly, which comprises a mounting bracket, a third servo motor, and a rotary cutter head. The second servo motor is fixed to the mounting bracket and supported by it, with its direction perpendicular to the ground being parallel to the Z-axis. The third servo motor is positioned above the three-axis motion drive frame, and its drive shaft is parallel to the Z-axis. The drive shaft of the third servo motor faces the three-axis motion drive frame, and a rotary cutter head is fixed to it. The rotation center of the rotary cutter head is on the same straight line as the axis of the drive shaft of the third servo motor. The rotating cutter head has several semi-circular grooves extending through its thickness on its periphery. A semi-circular ring support is provided on the side wall of the semi-circular groove. The semi-circular grooves are arranged around the rotation center of the rotating cutter head. The outer wall of the tool holder is provided with an annular groove matching the size of the semi-circular ring support. The semi-circular ring support is inserted into the annular groove to support the tool holder. The third servo motor drives the rotating cutter head to rotate. The rotation of the rotating cutter head causes the semi-circular grooves to align with the tool sleeve one by one, and the tool holder in the semi-circular groove aligns with the infeed hole of the tool sleeve.

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