CN112123135A - Double-sided automatic polishing device and polishing method thereof - Google Patents
Double-sided automatic polishing device and polishing method thereof Download PDFInfo
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- CN112123135A CN112123135A CN202010836254.2A CN202010836254A CN112123135A CN 112123135 A CN112123135 A CN 112123135A CN 202010836254 A CN202010836254 A CN 202010836254A CN 112123135 A CN112123135 A CN 112123135A
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- rotating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/02—Frames; Beds; Carriages
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
- B24B41/067—Work supports, e.g. adjustable steadies radially supporting workpieces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/02—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables
- B24B47/08—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables by mechanical gearing combined with fluid systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/10—Single-purpose machines or devices
- B24B7/16—Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings
- B24B7/17—Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings for simultaneously grinding opposite and parallel end faces, e.g. double disc grinders
Abstract
The invention discloses a double-sided automatic polishing device and a polishing method thereof, and belongs to the technical field of polishing. The method comprises the following steps: the grinding device comprises a vertical frame, a bearing plate fixed on the vertical frame, a lower grinding mechanism arranged at the bottom of the vertical frame, an upper grinding mechanism arranged at the lower surface of the bearing plate and positioned right above the lower grinding mechanism, a lifting mechanism arranged inside the vertical frame and positioned at one side of the lower grinding mechanism, a rotating mechanism arranged at the top of the lifting mechanism and a clamping mechanism arranged at the tail end of the rotating mechanism. The device can polish one side and two sides, improves the clamp for mounting the workpiece to be polished according to actual requirements, and is convenient to mount and dismount while not influencing polishing effect.
Description
Technical Field
The invention belongs to the technical field of polishing, and particularly relates to a double-sided automatic polishing device and a polishing method thereof.
Background
In the prior art, a polishing device generally polishes one surface of a workpiece and then polishes the other surface of the workpiece after turning over the workpiece, so that the effect of polishing the two surfaces of the workpiece is achieved. But the following problems need to be considered in the process of turning over: treat during the upset that the space between upset piece and the grinding device requires comparatively high, if do not elongate the distance between waiting to overturn piece and the grinding device, then can't realize treating the upset between the upset piece. And the height of the part to be turned is required to be adjusted to the original position after the part to be turned is turned, the part to be turned after the part to be turned is turned to return to the original position to polish the other surface with higher precision requirement, and the polishing effect of the two side surfaces is ensured to be consistent.
Disclosure of Invention
The invention provides a double-sided automatic polishing device and a polishing method thereof, aiming at solving the technical problems in the background technology.
The invention is realized by adopting the following technical scheme: a double-sided automatic grinding device comprising:
the grinding device comprises a vertical frame, a bearing plate fixed on the vertical frame, a lower grinding mechanism arranged at the bottom of the vertical frame, an upper grinding mechanism which is arranged at the lower surface of the bearing plate through a lifting device and is positioned right above the lower grinding mechanism, a lifting mechanism which is arranged in the vertical frame and is positioned at one side of the lower grinding mechanism, a rotating mechanism arranged at the top of the lifting mechanism, and a clamping mechanism arranged at the tail end of the rotating mechanism;
the vertical frame is used for installing an upper polishing mechanism and a lower polishing mechanism; the lifting mechanism is used for controlling the height of the clamping mechanism, the rotating mechanism is used for realizing the rotation of the clamping mechanism on the horizontal plane, and the clamping mechanism is used for clamping and fixing the workpiece to be polished; before polishing, a to-be-polished piece is fixedly clamped in a clamping mechanism, the clamping mechanism, a lower polishing mechanism and an upper polishing mechanism are not overlapped, and the rotating mechanism is positioned at the lowest end; when polishing, under the transmission of elevating system and rotary mechanism, clamping mechanism this moment is located between polishing mechanism and the last polishing mechanism down, and polishing mechanism and last polishing mechanism treat respectively that polish an upper surface and lower surface polish down.
In a further embodiment, the lift mechanism comprises: the device comprises a mounting plate fixed on a bottom plate of the vertical frame, an electric cylinder transversely mounted on the mounting plate, a fixture block fixed on the mounting plate, a rack in interference fit with the fixture block, a mounting frame fixed on the mounting plate adjacent to the mounting plate, a rotating shaft rotatably mounted on the mounting frame, a rotating gear tightly sleeved on the rotating shaft, guide rods symmetrically arranged at two sides of the fixture block, a lifting plate sleeved on the guide rods, and a first connecting rod assembly in transmission connection between the lifting plate and the rotating shaft;
the rotating gear is meshed with the rack, and one end of the rack is in transmission connection with a piston rod of the electric cylinder.
In a further embodiment, the first link assembly comprises: the bottom end of the connecting plate is fixed on the rotating shaft, and the top end of the connecting plate is hinged to the lifting plate;
the top end of the connecting plate is hinged with the lower end of the lifting rod.
In a further embodiment, the rotation mechanism comprises: the lifting mechanism comprises a mounting seat fixed on a lifting plate, a first driving motor arranged on the mounting seat, a first rotating gear which is in transmission connection with an output shaft of the first driving motor and is positioned above the mounting seat, a transmission shaft which is arranged on the mounting seat and is adjacent to the first driving motor, a second rotating gear which is fixedly adjusted on the transmission shaft, and a rotating arm fixed at the top end of the transmission shaft;
the first rotating gear is meshed with the second rotating gear, and the tail end of the rotating arm is fixedly connected with a clamping mechanism.
In a further embodiment, a base is fixed on the top end face of the transmission shaft, a first connecting shaft is rotatably mounted inside the base, a first rotating rod is fixed on the top end of the first connecting shaft, a second connecting shaft is inserted at the tail end of the rotating arm, a second rotating rod is fixed on the top end of the second connecting shaft, and a transmission rod is hinged between the first rotating rod and the second rotating rod; and the lower end of the second connecting shaft is used for connecting the clamping mechanism.
In a further embodiment, the snapping mechanism comprises: the clamping device comprises a fixed plate, a second driving motor fixed on the fixed plate, a third rotating gear in transmission connection with an output shaft of the second driving motor, a gear ring in rotatable clamping connection with the third rotating gear, and a clamping assembly fixed inside the gear ring;
the inner part of the fixing plate is of an open structure, so that the upper surface and the lower surface of a workpiece to be polished can be exposed outside, and the upper polishing mechanism and the lower polishing mechanism can polish conveniently;
the clamping assembly clamps the circumferential surface of the workpiece to be polished and is not in contact with the upper surface and the lower surface of the workpiece to be polished.
In a further embodiment, the clamping assembly comprises: the gear ring comprises an upper fixing ring and a lower fixing ring which are fixed inside the gear ring, a plurality of arc-shaped grooves which are formed in the upper fixing ring, stand columns which are movably clamped in the arc-shaped grooves, a cover plate which is fixed on the stand columns and is positioned between the upper fixing ring and the lower fixing ring, and a micro air cylinder which is in transmission connection with one of the stand columns;
the adjacent cover plates are sequentially connected with one another in an initial position through the front surface and the rear surface; under the transmission of the micro cylinder, when the upright post moves from the outer side to the inner side of the arc-shaped groove, the inner side surfaces of the cover plates are close to each other to realize the clamping effect, and at the moment, the contact area between the front surface and the rear surface of the adjacent cover plates is gradually increased.
In a further embodiment, two groups of turning assemblies are arranged between the clamping assembly and the gear ring and symmetrically distributed in the gear ring along the radial direction of the gear ring; the overturning assembly is used for overturning the clamping assembly and a to-be-polished part on the clamping assembly by 0-360 degrees along the radial direction of the gear ring.
In a further embodiment, the flipping assembly comprises: the clamping assembly comprises a mounting groove correspondingly formed in the gear ring, a support fixed in the mounting groove, a push rod penetrating in the support along the length direction of the mounting groove, a square block fixed on the push rod and close to one end of the clamping assembly, a pressing wheel fixed on the square block, and a compression spring sleeved on the push rod, wherein two ends of the compression spring are respectively connected to the support and the square block;
go up the retainer plate and be provided with U type draw-in groove with the corresponding position department between the retainer plate down, the thickness of U type draw-in groove with the thickness of pinch roller is unanimous, the pinch roller joint is in just in the U type draw-in groove, simultaneously the degree of depth of U type draw-in groove is greater than the external diameter of pinch roller is in when the square joint is in during the mounting groove is inside, the pinch roller with leave the elasticity space between the bottom surface of U type draw-in groove, work as when the square receives the length direction clamping components of exogenic action along the mounting groove to be close to, the pinch roller inwards remove in U type draw-in groove until the square with the mounting groove breaks away from, clamping.
A grinding method using the double-sided automatic grinding device comprises the following steps:
the method comprises the following steps that firstly, a component to be polished is lifted in a clamping component, a micro air cylinder is started, the micro air cylinder pushes an upright post in transmission connection with the micro air cylinder to move inwards, and because cover plates on the upright post are in end connection with adjacent cover plates, other cover plates are pushed to rotate inwards along the trend, and the cover plates are in contact with the edge of a piece to be polished to clamp the piece to be polished; the clamping assembly is not overlapped with the lower polishing mechanism and the upper polishing mechanism under the action of the rotating mechanism, and the rotating mechanism and the clamping mechanism are positioned at the lowest end of the lifting mechanism under the action of the lifting mechanism;
the lifting mechanism works, under the transmission of the electric cylinder, a connecting plate which is coaxially connected with the rotating gear is driven to rotate through the meshing action of the rack and the rotating gear, and the lifting plate moves upwards under the action of the guide rod and the connecting rod, namely the rotating mechanism and the clamping mechanism move upwards;
when the rotating mechanism and the clamping mechanism move to the position above the lower polishing mechanism, the lifting plate stops moving upwards, at the moment, a first driving motor in the rotating mechanism is started, and the clamping mechanism is rotated to the position right above the lower polishing mechanism along a transmission shaft under the transmission of a first rotating gear and a second rotating gear;
step four, the lower surface of a to-be-polished part in the clamping assembly is effectively contacted with a polishing disc in the lower polishing mechanism through adjusting the lifting mechanism for the second time;
step five, fine adjustment of the clamping mechanism is realized by adjusting rotation of a first connecting shaft arranged on the base and combining transmission connection among a first rotating rod, a second rotating rod and a transmission rod, and a piece to be polished in the clamping assembly can be ensured to be in contact with the polishing disc in the largest area;
step six, when the upper surface of the workpiece to be polished needs to be polished, the lifting device is controlled to move the polishing disc in the upper polishing mechanism downwards and contact with the upper surface of the workpiece to be polished;
seventhly, opening a second driving motor in the clamping mechanism, and enabling the clamping assembly to rotate in the upper polishing mechanism and the lower polishing mechanism under the action of a third rotating gear and a gear ring on the second driving motor, wherein the upper polishing mechanism and the lower polishing mechanism polish the upper surface and the lower surface respectively under the rotation of the clamping assembly;
step eight, in the step one, considering that the grinding force of the upper grinding mechanism and the grinding force of the lower grinding mechanism are possibly different, the upper surface and the lower surface need to be distinguished preferentially when the grinding mechanism is installed, if the grinding mechanism is installed wrongly, the surface is turned over and changed through the turning assembly, and the grinding mechanism is simple and easy to operate.
The invention has the beneficial effects that: the single-side polishing device is different from the existing single-side polishing device, a device capable of polishing a single side and polishing two sides is developed, a clamp for mounting a workpiece to be polished is improved according to actual requirements, and the polishing device is convenient to mount and dismount while the polishing effect is not influenced; and considering the inconsistent grinding force of the upper grinding mechanism and the lower grinding mechanism, the upper surface and the small surface are required to be distinguished by attention during installation, so that in order to avoid installation errors, an overturning assembly capable of overturning the workpiece to be ground is further arranged.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the lifting mechanism of the present invention.
Fig. 3 is a first structural schematic diagram of the rotating mechanism in the present invention.
Fig. 4 is a second schematic structural view of the rotating mechanism of the present invention.
Fig. 5 is a plan view of the rotating mechanism in the present invention.
FIG. 6 is a first top view of the clamping mechanism of the present invention.
Fig. 7 is a partial structural schematic view of the latch mechanism of the present invention.
Fig. 8 is a schematic view of the structure of the clamping assembly of the present invention.
Fig. 9 is a cross-sectional view of a clamping assembly in the present invention.
Fig. 10 is a second top view of the latch mechanism of the present invention.
Fig. 11 is an enlarged schematic view of a portion a in fig. 10.
Each of fig. 1 to 11 is labeled as: the vertical frame 1, a bearing plate 2, a lower grinding mechanism 3, a lifting device 4, an upper grinding mechanism 5, a lifting mechanism 6, a rotating mechanism 7, a turnover component 8, a mounting plate 601, an electric cylinder 602, a clamping block 603, a rack 604, a mounting frame 605, a rotating shaft 606, a rotating gear 607, a guide rod 608, a lifting plate 609, a connecting plate 610, a connecting rod 611, a mounting seat 701, a first driving motor 702, a first rotating gear 703, a transmission shaft 704, a second rotating gear 705, a rotating arm 706, a base 707, a first connecting shaft 708, a first rotating rod 709, a second connecting shaft 710, a second rotating rod 711, a transmission rod 712, a fixing plate 713, a third rotating gear 714, a gear ring 715, an upper fixing ring 716, a lower fixing ring 717, an arc-shaped groove 718, a cover plate 719, a vertical column 720, a support 801, a push rod 802, a square 803, a pinch roller 804.
Detailed Description
The invention is further described with reference to the following description of the drawings and specific embodiments.
The inventor finds out through multiple practices that: the existing polishing device generally polishes the other side of the single-side polished workpiece after being turned over, and achieves the effect of polishing the two sides of the workpiece. But the following problems need to be considered in the process of turning over: treat during the upset that the space between upset piece and the grinding device requires comparatively high, if do not elongate the distance between waiting to overturn piece and the grinding device, then can't realize treating the upset between the upset piece. And the height of the part to be turned is required to be adjusted to the original position after the part to be turned is turned, the part to be turned after the part to be turned is turned to return to the original position to polish the other surface with higher precision requirement, and the polishing effect of the two side surfaces is ensured to be consistent.
Therefore, the inventor makes the following improvements and designs a device capable of polishing a single surface and a double surface, which comprises: the vertical frame 1, the bearing plate 2, the lower grinding mechanism 3, the lifting device 4, the upper grinding mechanism 5, the lifting mechanism 6, the rotating mechanism 7, the turnover assembly 8, the mounting plate 601, the electric cylinder 602, the fixture block 603, the rack 604, the mounting frame 605, the rotating shaft 606, the rotating gear 607, the guide rod 608, the lifting plate 609, the connecting plate 610, the connecting rod 611, the mounting seat 701, the first driving motor 702, the first rotating gear 703, the transmission shaft 704, the second rotating gear 705, the rotating arm 706, the base 707, the first connecting shaft 708, the first rotating rod 709, the second connecting shaft 710, the second rotating rod 711, the transmission rod 712, the fixing plate 713, the second driving motor 713, the third rotating gear 714, the gear ring 715, the upper fixing ring 716, the lower fixing ring 717, the arc-shaped groove 718, the cover plate 719, the bracket 801, the push rod 802, the square 803, the pinch roller 804 and the.
A bearing plate 2 is fixed at the top end of the vertical frame 1, and an upper polishing mechanism 5 is arranged on the lower surface of the bearing plate 2 through a lifting device 4; the bottom of grudging post 1 is provided with down grinding machanism 3, it polishes to go up grinding machanism 5 and be used for realizing treating the upper surface of polishing the piece, grinding machanism 3 is then used for realizing treating the lower surface of polishing the piece down and polishes. In the above description, the lifting device 4 is only a commonly used lifting mechanism 6, and may be a screw drive, a rack and pinion drive 604, a cylinder drive, or other prior arts, and therefore, the details are not repeated. The lower polishing mechanism 3 and the upper polishing mechanism 5 respectively comprise a lower polishing disc and an upper polishing disc, and a driving component for driving the lower polishing disc and the upper polishing disc to rotate, and the driving component can be the prior art of mutual meshing of gears, rotation of a gear ring 715 and the like, so that the details are not repeated.
As described above, the upper grinding mechanism 5 is provided on the lower grinding mechanism 3 in the related art, and although the double-side grinding of the workpiece to be ground can be achieved, the following problems occur when the workpiece is mounted (the fixing of the workpiece to be ground is performed): because the upper grinding mechanism 5 is limited, normal disc loading cannot be carried out from the upper part of the lower grinding mechanism 3, and the inventor makes some improvements in order to solve the problems: as shown in fig. 1, one side of the stand 1 is provided with a lifting mechanism 6, the lifting mechanism 6 is provided with a rotating mechanism 7, and the tail end of the rotating mechanism 7 is provided with a clamping mechanism.
Specifically, the lifting mechanism 6 is used for controlling the height of the clamping mechanism, the rotating mechanism 7 is used for realizing the rotation of the clamping mechanism on a horizontal plane, and the clamping mechanism is used for clamping and fixing the workpiece to be polished; before polishing, a to-be-polished piece is fixedly clamped in the clamping mechanism, the lower polishing mechanism 3 and the upper polishing mechanism 5 are not overlapped, and the rotating mechanism 7 is positioned at the lowest end; when polishing, under the transmission of the lifting mechanism 6 and the rotating mechanism 7, the clamping mechanism is positioned between the lower polishing mechanism 3 and the upper polishing mechanism 5, and the upper surface and the lower surface of a workpiece to be polished are polished by the lower polishing mechanism 3 and the upper polishing mechanism 5 respectively.
In a further embodiment, the lifting mechanism 6 is shown in fig. 2 and comprises: a mounting frame 605 fixed on the floor of the vertical frame 1, wherein the mounting frame 605 is used for carrying other parts. An electric cylinder 602 is transversely fixed on the mounting frame 605, and the electric cylinder 602 can be of an existing type. Still be fixed with fixture block 603 on the mounting panel 601, the upper surface of fixture block 603 is provided with the recess that the cross section is the type word, there is rack 604 through the interference fit joint in the recess, the one end of rack 604 with be the transmission connection between the piston rod of electric cylinder 602. A mounting rack 605 is fixed at the position close to the clamping block 603, a rotating shaft 606 is rotatably mounted on the mounting rack 605, a rotating gear 607 is tightly sleeved on the rotating shaft 606, and the rotating gear 607 is meshed with the rack 604. The rotating shaft 606 is fixedly connected with the bottom end of the connecting plate 610, the top end of the connecting plate 610 is hinged with the bottom end of the connecting rod 611, and the top end of the connecting rod 611 is hinged with the lifting plate 609. In order to match the transmission connection between the connecting plate 610 and the connecting rod 611, guide rods 608 in the vertical direction are symmetrically fixed on two sides of the clamping block 603, and the lifting plate 609 is sleeved on the guide rods 608.
The working principle of the lifting mechanism 6 is as follows: when the electric cylinder 602 works, the piston rod pushes the rack 604 to move on the fixture block 603, the rack 604 moves left and right to drive the rotating gear 607 engaged with the rack to rotate, the connecting plate 610 coaxially connected with the rotating gear 607 rotates, when the included angle between the connecting plate 610 and the connecting rod 611 is equal to 180 degrees, the height of the lifting plate 609 is the highest, and when the included angle between the connecting plate 610 and the connecting rod 611 is gradually reduced from 180 degrees to approximately 0 degree, the lifting plate 609 is in a descending state; in contrast, when the angle between the connection plate 610 and the connection rod 611 is gradually decreased from 0 ° to approximately 180 °, the lift plate 609 is in a raised state.
It should be noted here that the mechanism using the gear transmission lever mainly takes the following factors into consideration: if the lifting plate 609 is controlled to lift by directly adopting the transmission of the gear rack 604 in the prior art, the gear is subjected to the gravity of the clamping mechanism, the gravity of a piece to be polished and the downward acting force of the upper polishing mechanism 5 on the lifting plate 609 in the polishing process, so that the gear is pushed to roll downwards under the unexpected condition, and polishing accidents are caused; the same use of a threaded screw drive can cause the threaded sleeve to roll downward in an unintended situation. Therefore, the lever transmission is added on the basis of gear transmission, the gravity of the clamping mechanism borne by the lifting plate 609, the gravity of a piece to be polished and the downward acting force of the upper polishing mechanism 5 on the lifting plate 609 in the polishing process are decomposed by the connecting plate 610 and the connecting rod 611, and finally the acting force to the rotating shaft is very small, so that the problems are solved skillfully.
Meanwhile, the lifting plate 609 is not pushed by the air cylinder directly because the speed and the force for pushing by the air cylinder are large, and the stroke cannot be controlled slowly and accurately.
In order to enable the clamping mechanism to move up and down without being obstructed by the lower grinding mechanism 3 and finally transfer the clamping mechanism to the upper part of the lower grinding mechanism 3, a rotating mechanism 7 is arranged at the top of the jacking mechanism. As shown in fig. 3, the rotating mechanism 7 includes: and the mounting seat 701 is fixed on the lifting plate 609, namely the mounting seat 701 moves up and down along with the lifting plate 609. A first driving motor 702 is fixed on the mounting base 701, a first rotating gear 703 is connected to an output shaft of the first driving motor 702 in a transmission manner, and the first rotating gear 703 is located above the mounting base 701. A transmission shaft 704 is installed on one side of the first driving motor 702, the transmission shaft 704 is also located above the installation base 701, a second rotating gear 705 is tightly sleeved on the transmission shaft 704, and the second rotating gear 705 is meshed with the first rotating gear 703. The top of transmission shaft 704 is fixed with swivel arm 706, the end of swivel arm 706 is in fixedly connected with latch mechanism, latch mechanism is used for the fixed joint to treat the piece of polishing.
The working principle of the rotating mechanism 7 is as follows: in the lifting process of the clamping mechanism, the rotating arm 706 controls the clamping mechanism to deviate from the upper polishing mechanism 3 and the lower polishing mechanism 3; after the clamping mechanism moves to a specified position, the first driving motor 702 is started, the output shaft of the first driving motor 702 drives the first rotating gear 703 and the second rotating gear 705 to be meshed with each other, and under the action of the second rotating gear 705, the transmission shaft 704 drives the rotating arm 706 to rotate, that is, the clamping mechanism rotates above the upper grinding mechanism 5. The polishing mechanism 5 is convenient to polish the to-be-polished part in the clamping mechanism.
But under the effect of above-mentioned rotary mechanism 7, only rotate clamping mechanism to the top that is located grinding machanism 3 down, but hardly guarantee to wait that the piece of polishing in the clamping mechanism can with the lower grinding disk in grinding machanism 3 fine match. Therefore, the inventor has made the following improvements to the above-described rotating mechanism 7: as shown in fig. 4 to 5, a base 707 is fixedly disposed on a top end surface of the transmission shaft 704, a first connection shaft 708 is rotatably mounted on the base 707, and a first rotation rod 709 is fixedly connected to a top end of the first connection shaft 708. A second connecting shaft 710 is inserted at the tail end of the rotating arm 706, a second rotating rod 711 is fixed at the top end of the second connecting shaft 710, and the first rotating rod 709 is in transmission connection with the second rotating rod 711 through a transmission rod 712. The bottom end of the second connecting shaft 710 is used for connecting the clamping mechanism.
The structure is used for realizing fine adjustment of the clamping mechanism: namely, by rotating the first connecting shaft 708, the first connecting shaft 708 drives the transmission rod 712, the transmission rod 712 drives the second connecting shaft 710 to rotate, and the second connecting shaft 710 drives the latch mechanism to rotate, so as to realize fine angle adjustment of the latch mechanism in the horizontal direction. In order to prevent the first connection shaft 708 from rotating in an unexpected state, a ratchet check valve is disposed at an edge of the first connection shaft 708, and when the first connection shaft 708 needs to be rotated, the ratchet check valve is artificially controlled to be disengaged from the first rotation shaft; when the reverse stopping is needed, the ratchet wheel check valve is started, and the ratchet wheel check valve is the prior art, so the detailed description is omitted.
In the process, the upper surface and the lower surface of the workpiece to be polished are polished, so that the clamping mechanism cannot be in contact with the upper surface and the lower surface of the workpiece to be polished in clamping and can only clamp the workpiece from the edge to be polished.
In a further embodiment, as shown in fig. 6 to 9, the snapping mechanism comprises: the fixed plate 713 is used for being fixedly connected with the bottom end of the second connecting shaft 710, a second driving motor is mounted on the fixed plate 713, an output shaft of the second driving motor is in transmission connection with a third rotating gear 714, and a gear ring 715 is movably clamped on the fixed plate 713. In order to prevent any shielding of the upper and lower surfaces of the member to be ground, the fixing plate 713 has a small cross section and can support the third rotary gear 714 and the partial gear ring 715. The inside of gear circle 715 is provided with clamping component, clamping component is used for the centre gripping to treat the piece of polishing. Or, the fixing plate 713 is of an open structure inside, so that the clamping assembly is located inside the open structure, the upper surface and the lower surface of the workpiece to be polished can be exposed outside conveniently, and the upper polishing mechanism 5 and the lower polishing mechanism 3 can polish conveniently; the clamping assembly clamps the circumferential surface of the workpiece to be polished and is not in contact with the upper surface and the lower surface of the workpiece to be polished.
The second driving motor drives the third rotating gear 714 to rotate, rotation of the gear ring 715 is achieved through meshing, the clamping assembly located inside the gear ring 715 drives the workpiece to be polished to rotate, and when two sides of the workpiece need to be polished simultaneously, rotation of the workpiece to be polished can be achieved by opening the second driving motor.
In a further embodiment, the clamping assembly comprises: an upper fixed ring 716 and a lower fixed ring 717 fixed inside the gear ring 715, a plurality of arc-shaped grooves 718 formed on the upper fixed ring 716, a vertical column 720 movably clamped in the arc-shaped grooves 718, a cover plate 719 fixed on the vertical column 720 and positioned between the upper fixed ring 716 and the lower fixed ring 717, and a micro cylinder in transmission connection with one of the vertical columns 720; the cover plates 719 are adjacent and connected in an initial position through the front and the back; under the transmission of the micro cylinder, when the upright post 720 moves from the outer side to the inner side of the arc-shaped groove 718, the inner side surfaces of the cover plates 719 approach each other to realize the clamping function, and at the moment, the contact area between the front surface and the rear surface of the adjacent cover plates 719 is gradually increased.
The clamping of the workpiece to be ground is achieved from the edge of the workpiece to be ground by the mutual cooperation of the cover plates 719.
Because the double-side polishing machine can polish double sides simultaneously and can polish single side simultaneously, and because the height of the upper polishing mechanism 5 is adjustable, the polishing force between the upper polishing mechanism 5 and the lower polishing mechanism 3 is different, and the upper part and the lower part are different when a workpiece to be polished is installed. Therefore, the problem of reverse mounting occurs if the mounting is carried out carelessly, and in order to solve the technical problem, the inventor provides the overturning assembly 8 between the clamping assembly and the gear ring 715. As shown in fig. 10 to 11, the turning assemblies 8 are two groups, and are symmetrically distributed inside the gear ring 715 along the radial direction of the gear ring 715; the overturning assembly 8 is used for overturning the clamping assembly and a to-be-polished part on the clamping assembly by 0-360 degrees along the radial direction of the gear ring 715.
In a further embodiment, the flipping assembly 8 comprises: the clamping device comprises a mounting groove correspondingly formed in the gear ring 715, a support 801 fixed in the mounting groove, a push rod 802 inserted into the support 801 along the length direction of the mounting groove, a square 803 fixed to one end of the push rod 802 close to the clamping assembly, a pressing wheel 804 fixed to the square 803, and a compression spring 805 sleeved on the push rod 802 and having two ends respectively connected to the support 801 and the square 803; go up retainer plate 716 and be provided with U type draw-in groove in the corresponding position department between retainer plate 717 down, the thickness of U type draw-in groove with pinch roller 804's thickness is unanimous, pinch roller 804 just the joint is in the U type draw-in groove, simultaneously the degree of depth of U type draw-in groove is greater than pinch roller 804's external diameter, when square 803 joint is in inside the mounting groove, pinch roller 804 with leave the elasticity space between the bottom surface of U type draw-in groove, when square 803 receives the exogenic action to press from both sides tight subassembly when being close to along the length direction of mounting groove, pinch roller 804 inwards removes in U type draw-in groove until square 803 with the mounting groove breaks away from, presss from both sides tight subassembly upset.
That is when the dress is reversed, the artificial control upset subassembly 8 treat polish the piece overturn can, simple convenient, easy operation need not fixed mounting again.
The grinding method of the double-sided automatic grinding device specifically comprises the following steps:
the method comprises the following steps that firstly, a component to be polished is lifted in a clamping component, a micro air cylinder is started, the micro air cylinder pushes an upright post in transmission connection with the micro air cylinder to move inwards, and because cover plates on the upright post are in end connection with adjacent cover plates, other cover plates are pushed to rotate inwards along the trend, and the cover plates are in contact with the edge of a piece to be polished to clamp the piece to be polished; the clamping assembly is not overlapped with the lower polishing mechanism and the upper polishing mechanism under the action of the rotating mechanism, and the rotating mechanism and the clamping mechanism are positioned at the lowest end of the lifting mechanism under the action of the lifting mechanism;
the lifting mechanism works, under the transmission of the electric cylinder, a connecting plate which is coaxially connected with the rotating gear is driven to rotate through the meshing action of the rack and the rotating gear, and the lifting plate moves upwards under the action of the guide rod and the connecting rod, namely the rotating mechanism and the clamping mechanism move upwards;
when the rotating mechanism and the clamping mechanism move to the position above the lower polishing mechanism, the lifting plate stops moving upwards, at the moment, a first driving motor in the rotating mechanism is started, and the clamping mechanism is rotated to the position right above the lower polishing mechanism along a transmission shaft under the transmission of a first rotating gear and a second rotating gear;
step four, the lower surface of a to-be-polished part in the clamping assembly is effectively contacted with a polishing disc in the lower polishing mechanism through adjusting the lifting mechanism for the second time;
step five, fine adjustment of the clamping mechanism is realized by adjusting rotation of a first connecting shaft arranged on the base and combining transmission connection among a first rotating rod, a second rotating rod and a transmission rod, and a piece to be polished in the clamping assembly can be ensured to be in contact with the polishing disc in the largest area;
step six, when the upper surface of the workpiece to be polished needs to be polished, the lifting device is controlled to move the polishing disc in the upper polishing mechanism downwards and contact with the upper surface of the workpiece to be polished;
seventhly, opening a second driving motor in the clamping mechanism, and enabling the clamping assembly to rotate in the upper polishing mechanism and the lower polishing mechanism under the action of a third rotating gear and a gear ring on the second driving motor, wherein the upper polishing mechanism and the lower polishing mechanism polish the upper surface and the lower surface respectively under the rotation of the clamping assembly;
step eight, in the step one, considering that the grinding force of the upper grinding mechanism and the grinding force of the lower grinding mechanism are possibly different, the upper surface and the lower surface need to be distinguished preferentially when the grinding mechanism is installed, if the grinding mechanism is installed wrongly, the surface is turned over and changed through the turning assembly, and the grinding mechanism is simple and easy to operate.
Claims (10)
1. A double-sided automatic grinding device, comprising:
the grinding device comprises a vertical frame, a bearing plate fixed on the vertical frame, a lower grinding mechanism arranged at the bottom of the vertical frame, an upper grinding mechanism which is arranged at the lower surface of the bearing plate through a lifting device and is positioned right above the lower grinding mechanism, a lifting mechanism which is arranged in the vertical frame and is positioned at one side of the lower grinding mechanism, a rotating mechanism arranged at the top of the lifting mechanism, and a clamping mechanism arranged at the tail end of the rotating mechanism;
the vertical frame is used for installing an upper polishing mechanism and a lower polishing mechanism; the lifting mechanism is used for controlling the height of the clamping mechanism, the rotating mechanism is used for realizing the rotation of the clamping mechanism on the horizontal plane, and the clamping mechanism is used for clamping and fixing the workpiece to be polished; before polishing, a to-be-polished piece is fixedly clamped in a clamping mechanism, the clamping mechanism, a lower polishing mechanism and an upper polishing mechanism are not overlapped, and the rotating mechanism is positioned at the lowest end; when polishing, under the transmission of elevating system and rotary mechanism, clamping mechanism this moment is located between polishing mechanism and the last polishing mechanism down, and polishing mechanism and last polishing mechanism treat respectively that polish an upper surface and lower surface polish down.
2. The double-sided automatic grinding apparatus according to claim 1, wherein the lifting mechanism comprises: the device comprises a mounting plate fixed on a bottom plate of the vertical frame, an electric cylinder transversely mounted on the mounting plate, a fixture block fixed on the mounting plate, a rack in interference fit with the fixture block, a mounting frame fixed on the mounting plate adjacent to the fixture block, a rotating shaft rotatably mounted on the mounting frame, a rotating gear tightly sleeved on the rotating shaft, guide rods symmetrically arranged at two sides of the fixture block, a lifting plate sleeved on the guide rods, and a connecting rod assembly in transmission connection between the lifting plate and the rotating shaft;
the rotating gear is meshed with the rack, and one end of the rack is in transmission connection with a piston rod of the electric cylinder.
3. The double-sided automatic sharpening device according to claim 2, wherein said first link assembly comprises: the bottom end of the connecting plate is fixed on the rotating shaft, and the top end of the connecting plate is hinged to the lifting plate;
the top end of the connecting plate is hinged with the lower end of the lifting rod.
4. The double-sided automatic grinding apparatus according to claim 1, wherein said rotating mechanism comprises: the lifting mechanism comprises a mounting seat fixed on a lifting plate, a first driving motor arranged on the mounting seat, a first rotating gear which is in transmission connection with an output shaft of the first driving motor and is positioned above the mounting seat, a transmission shaft which is arranged on the mounting seat and is adjacent to the first driving motor, a second rotating gear which is fixedly adjusted on the transmission shaft, and a rotating arm fixed at the top end of the transmission shaft;
the first rotating gear is meshed with the second rotating gear, and the tail end of the rotating arm is fixedly connected with a clamping mechanism.
5. The automatic double-sided grinding device according to claim 4, wherein a base is fixed on the top end surface of the transmission shaft, a first connecting shaft is rotatably installed inside the base, a first rotating rod is fixed on the top end of the first connecting shaft, a second connecting shaft is inserted at the end of the rotating arm, a second rotating rod is fixed on the top end of the second connecting shaft, and the transmission rod is hinged between the first rotating rod and the second rotating rod; the bottom end of the second connecting shaft is used for connecting the clamping mechanism.
6. A double-sided automatic grinding device according to claim 1, wherein said clamping mechanism comprises: the clamping device comprises a fixed plate, a second driving motor fixed on the fixed plate, a third rotating gear in transmission connection with an output shaft of the second driving motor, a gear ring in rotatable clamping connection with the fixed plate, and a clamping assembly fixed inside the gear ring;
the inner part of the fixing plate is of an open structure, so that the upper surface and the lower surface of a workpiece to be polished can be exposed outside, and the upper polishing mechanism and the lower polishing mechanism can polish conveniently;
the clamping assembly clamps the circumferential surface of the workpiece to be polished and is not in contact with the upper surface and the lower surface of the workpiece to be polished.
7. The double-sided automatic sharpening device according to claim 6, wherein said clamping assembly comprises: the gear ring comprises an upper fixing ring and a lower fixing ring which are fixed inside the gear ring, a plurality of arc-shaped grooves which are formed in the upper fixing ring, stand columns which are movably clamped in the arc-shaped grooves, a cover plate which is fixed on the stand columns and is positioned between the upper fixing ring and the lower fixing ring, and a micro air cylinder which is in transmission connection with one of the stand columns;
the adjacent cover plates are sequentially connected with one another in an initial position through the front surface and the rear surface; under the transmission of the micro cylinder, when the upright post moves from the outer side to the inner side of the arc-shaped groove, the inner side surfaces of the cover plates are close to each other to realize the clamping effect, and at the moment, the contact area between the front surface and the rear surface of the adjacent cover plates is gradually increased.
8. The automatic double-sided grinding device according to claim 6, wherein two groups of turning assemblies are arranged between the clamping assembly and the gear ring and symmetrically distributed in the gear ring along the radial direction of the gear ring; the overturning assembly is used for overturning the clamping assembly and a to-be-polished part on the clamping assembly by 0-360 degrees along the radial direction of the gear ring.
9. The dual sided automatic sharpening device of claim 8, said inverting assembly comprising: the clamping assembly comprises a mounting groove correspondingly formed in the gear ring, a support fixed in the mounting groove, a push rod penetrating in the support along the length direction of the mounting groove, a square block fixed on the push rod and close to one end of the clamping assembly, a pressing wheel fixed on the square block, and a compression spring sleeved on the push rod, wherein two ends of the compression spring are respectively connected to the support and the square block;
go up the retainer plate and be provided with U type draw-in groove with the corresponding position department between the retainer plate down, the thickness of U type draw-in groove with the thickness of pinch roller is unanimous, the pinch roller joint is in just in the U type draw-in groove, simultaneously the degree of depth of U type draw-in groove is greater than the external diameter of pinch roller is in when the square joint is in during the mounting groove is inside, the pinch roller with leave the elasticity space between the bottom surface of U type draw-in groove, work as when the square receives the length direction clamping components of exogenic action along the mounting groove to be close to, the pinch roller inwards remove in U type draw-in groove until the square with the mounting groove breaks away from, clamping.
10. A grinding method using the double-sided automatic grinding device according to any one of claims 1 to 9, characterized by specifically comprising the steps of:
the method comprises the following steps that firstly, a component to be polished is lifted in a clamping component, a micro air cylinder is started, the micro air cylinder pushes an upright post in transmission connection with the micro air cylinder to move inwards, and because cover plates on the upright post are in end connection with adjacent cover plates, other cover plates are pushed to rotate inwards along the trend, and the cover plates are in contact with the edge of a piece to be polished to clamp the piece to be polished; the clamping assembly is not overlapped with the lower polishing mechanism and the upper polishing mechanism under the action of the rotating mechanism, and the rotating mechanism and the clamping mechanism are positioned at the lowest end of the lifting mechanism under the action of the lifting mechanism;
the lifting mechanism works, under the transmission of the electric cylinder, a connecting plate which is coaxially connected with the rotating gear is driven to rotate through the meshing action of the rack and the rotating gear, and the lifting plate moves upwards under the action of the guide rod and the connecting rod, namely the rotating mechanism and the clamping mechanism move upwards;
when the rotating mechanism and the clamping mechanism move to the position above the lower polishing mechanism, the lifting plate stops moving upwards, at the moment, a first driving motor in the rotating mechanism is started, and the clamping mechanism is rotated to the position right above the lower polishing mechanism along a transmission shaft under the transmission of a first rotating gear and a second rotating gear;
step four, the lower surface of a to-be-polished part in the clamping assembly is effectively contacted with a polishing disc in the lower polishing mechanism through adjusting the lifting mechanism for the second time;
step five, fine adjustment of the clamping mechanism is realized by adjusting rotation of a first connecting shaft arranged on the base and combining transmission connection among a first rotating rod, a second rotating rod and a transmission rod, and a piece to be polished in the clamping assembly can be ensured to be in contact with the polishing disc in the largest area;
step six, when the upper surface of the workpiece to be polished needs to be polished, the lifting device is controlled to move the polishing disc in the upper polishing mechanism downwards and contact with the upper surface of the workpiece to be polished;
seventhly, opening a second driving motor in the clamping mechanism, and enabling the clamping assembly to rotate in the upper polishing mechanism and the lower polishing mechanism under the action of a third rotating gear and a gear ring on the second driving motor, wherein the upper polishing mechanism and the lower polishing mechanism polish the upper surface and the lower surface respectively under the rotation of the clamping assembly;
step eight, in the step one, considering that the grinding force of the upper grinding mechanism and the grinding force of the lower grinding mechanism are possibly different, the upper surface and the lower surface need to be distinguished preferentially when the grinding mechanism is installed, if the grinding mechanism is installed wrongly, the surface is turned over and changed through the turning assembly, and the grinding mechanism is simple and easy to operate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010836254.2A CN112123135B9 (en) | 2020-08-17 | 2020-08-17 | Double-sided automatic polishing device and polishing method thereof |
| PCT/CN2020/110435 WO2022036669A1 (en) | 2020-08-17 | 2020-08-21 | Dual-side automatic grinding apparatus and grinding method therefor |
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| CN202010836254.2A CN112123135B9 (en) | 2020-08-17 | 2020-08-17 | Double-sided automatic polishing device and polishing method thereof |
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| CN112123135A true CN112123135A (en) | 2020-12-25 |
| CN112123135B CN112123135B (en) | 2022-07-19 |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2022036669A1 (en) | 2022-02-24 |
| CN112123135B (en) | 2022-07-19 |
| CN112123135B9 (en) | 2022-08-12 |
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