Ultra-precise double-sided grinding machine

Abstract

The invention relates to the technical field of grinding mills, and discloses an ultra-precise double-sided grinding miller which comprises a rack, a supporting frame is fixedly mounted at the top of the rack, a base is fixedly mounted in the middle of the top of the supporting frame, and a hydraulic cylinder is fixedly mounted at the top of the base; and a hydraulic rod is fixedly mounted at the top of the grinding assembly. According to the ultra-precise double-sided grinding machine, when a hydraulic rod drives a lantern ring to move downwards, a grinding block makes contact with a mechanical part firstly, along with continuous downward extrusion of the hydraulic rod, a clamping ring is extruded to drive a ring sleeve below the clamping ring to slide upwards on the surface of a positioning rod, and at the moment, a limiting ring slides on the surface of a sliding supporting rod while moving upwards along with the ring sleeve; the outer side of the extrusion bag is affected by deformation to extend outwards so as to be attached to the upper portion of the mechanical part, the grinding position of the mechanical part is limited, and it can be guaranteed that in the grinding process of the mechanical part, grinding pressure can be more evenly distributed on the surface of the mechanical part.

Description

Technical Field

[0001] The invention relates to the technical field of grinding machines, in particular to an ultra-precision double-sided grinding machine. Background Art

[0002] Surface grinding machines are mainly used for double-sided grinding of crystals or other mechanical parts with two parallel surfaces, especially for the processing of thin and brittle materials. They are suitable for surface grinding and polishing of various mechanical seal rings, ceramic sheets, cylinder piston rings, oil pump blades and other parts.

[0003] When the double-sided grinder is working, the planetary disc not only needs to rotate on itself, but also needs to revolve around the inner gear ring. Therefore, the planetary disc constantly generates meshing friction with the inner gear ring. The existing double-sided grinder protects the inner gear ring and the planetary disc through flowing grinding fluid. The traditional double-sided grinder has shortcomings in the use of grinding fluid. The grinding fluid cannot fully and reasonably act on the grinding area of ​​the workpiece, resulting in low utilization rate. Not only does it cause waste of grinding fluid, but it also affects the processing quality and efficiency due to poor cooling and lubrication effects, which may further affect the processing accuracy indicators such as the surface roughness and flatness of the workpiece. Summary of the invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: an ultra-precision double-sided grinding machine, comprising: a frame, a support frame is fixedly installed on the top of the frame, a base is fixedly installed in the middle of the top of the support frame, a hydraulic cylinder is fixedly installed on the top of the base, a mounting seat is fixedly installed inside the frame, the mounting seat is fixedly installed at the bottom of the bottom grinding assembly, and outlet flow channels are opened on both sides of the mounting seat, the outlet flow channels are arranged on both sides of the frame, the outlet flow channels penetrate the frame and extend to its outside, a limit ring is fixedly installed on the outer surface of the mounting seat, a guide ring is fixedly installed inside the limit ring, and elastic sheets are fixedly installed at both ends of the guide ring; waste liquid generated during the grinding of mechanical parts slides into the guide ring along the liquid guide ring, and the elastic sheets installed at both ends of the guide ring are set to a flexible material. As the waste liquid accumulated in the guide ring increases, the waste liquid is transported to the outlet flow channel along the elastic sheets at both ends of the guide ring to collect the waste liquid in a centralized manner.

[0005] A grinding assembly, wherein a hydraulic rod is fixedly mounted on the top of the grinding assembly, the grinding assembly is movably mounted on the bottom of the base through the hydraulic rod, and the hydraulic rod penetrates the base and is fixedly connected to the hydraulic cylinder;

[0006] A bottom grinding assembly, wherein a motor is fixedly installed inside the bottom grinding assembly, the motor is adapted to the grinding assembly, the bottom grinding assembly is rotationally adapted to the grinding assembly through the output end of the motor, the bottom grinding assembly is fixedly installed at the top middle of the frame, and the bottom grinding assembly and the grinding assembly are arranged on the same central axis. When grinding mechanical parts, the staff starts the hydraulic cylinder so that the hydraulic cylinder drives the hydraulic rod and the grinding assembly upward to separate the grinding assembly from the bottom grinding assembly, and then the staff places the mechanical parts in the bottom grinding assembly, and then controls the hydraulic rod and the grinding assembly to move down to the top of the bottom grinding assembly so that the grinding assembly and the bottom grinding assembly are squeezed and adapted, and the grinding liquid is injected into the bottom grinding assembly. At this time, the grinding assembly is sleeved on the outside of the motor. After the mechanical parts are placed, the staff starts the motor so that the output end of the motor drives the positioning disk group to rotate, thereby grinding the mechanical parts.

[0007] Preferably, the grinding assembly includes a ring, a connecting wire is fixedly installed on the bottom of the ring, a plurality of connecting wires are provided, a section of the plurality of connecting wires is distributed in a circle on the bottom of the ring, a cover plate is fixedly installed on the other end of the connecting wire, a positioning groove is provided at the axis of the cover plate, a liquid guide part is fixedly installed on the top of the cover plate, the liquid guide part extends through the cover plate to the interior thereof, a positioning rod is rotatably installed on the bottom of the cover plate, a ring sleeve is provided on the outer surface of the positioning rod, a polishing disc is provided on the outer surface of the ring sleeve, and a snap buckle is fixedly installed on the bottom of the polishing disc. The staff installs the grinding block under the polishing disc through the snap buckle, and then starts the hydraulic cylinder to drive the hydraulic rod and the collar to move up and down. When the hydraulic rod moves downward, the positioning rod is connected to the circular shaft. At this time, the polishing disc mounted on the outside of the positioning rod is squeezed by the cover plate and the positioning disc group, causing the polishing disc to deform and fit with the mechanical parts. When the positioning disc group rotates, the positioning rod connected to the circular shaft drives the polishing disc to rotate, so that the mechanical parts installed on the retaining ring will not rotate with the positioning rod and the polishing disc, thereby achieving the effect of double-sided grinding and improving the grinding efficiency.

[0008] Preferably, the sleeve ring is sleeved on the outer surface of the hydraulic rod, the positioning groove is sleeved on the outer surface of the motor, four groups of liquid guiding parts are provided, and the four groups of liquid guiding parts are distributed in a circular shape on the surface of the cover plate, the cover plate is adapted to the bottom grinding assembly, two sleeves are provided, and the two sleeves are respectively sleeved on the two ends of the positioning rod, the sleeve and the polishing disc are slidably installed on the surface of the positioning rod, and the polishing disc is extrusion-adapted to the bottom grinding assembly.

[0009] Preferably, the polishing disc includes a connecting ring, two connecting rings are provided, and the two connecting rings are respectively sleeved on the outer surface of the ring sleeve, and the inner wall of the connecting ring is fixedly installed with a clamping ring, and the outer surface of the clamping ring is fixedly installed with an inner pad, and the inner pad and the inner surface of the clamping ring are respectively installed with a sliding support rod and a clamping piece, and the top of the clamping piece is fixedly installed with a limiting ring, and the sliding support rod is arranged above the limiting ring. The outer surface of the connecting ring is fixedly installed with an extrusion bag, and the inside of the extrusion bag is provided with a movable cavity. When the hydraulic rod drives the sleeve ring to move downward, the grinding block first contacts the mechanical part, and as the hydraulic rod continues to squeeze downward, the clamping ring is squeezed to drive the ring sleeve below to slide upward on the surface of the positioning rod. At this time, the limiting ring slides on the surface of the sliding support rod as the ring sleeve moves upward, so that the outer side of the extrusion bag is affected by the deformation and extends outward to fit above the mechanical part, so as to limit the grinding position of the mechanical part, which can ensure that during the grinding process of the mechanical part, the grinding pressure can be more evenly distributed on the surface of the mechanical part.

[0010] Preferably, the connecting ring is slidably mounted on the outer surface of the positioning rod through a ring sleeve, the extrusion bag is set to be a flexible material, and the sliding support rod and the limiting ring are frictionally adapted in the movable cavity.

[0011] Preferably, the liquid guide member includes a positioning seat, the positioning seat is fixedly mounted inside the cover plate, a slot is fixedly mounted on the top of the positioning seat, a connecting tube is fixedly mounted on the top of the slot, a conduit is fixedly mounted on the top of the connecting tube, a guide dispersion block is fixedly mounted on the inner wall of the positioning seat, a plurality of guide dispersion blocks are provided, and the plurality of guide dispersion blocks are distributed in a circular shape on the surface of the positioning seat, and a diverter groove is provided between the guide dispersion blocks. Since the positioning disc group and the polishing disc are in a rotating state when the grinder is running, when grinding the mechanical parts, the staff injects the grinding liquid into the conduit, at which time the grinding liquid slides downward along the conduit and flows into the guide dispersion block and the diverter groove, and flows to the surface of the arc-shaped polishing disc, and is thrown outward as the polishing disc rotates, so as to increase the contact area between the grinding liquid and the mechanical parts assembly, so that the grinding liquid can fully act on the grinding area of ​​the mechanical parts, improve the utilization rate and avoid wasting the grinding liquid.

[0012] Preferably, the bottom grinding assembly includes a liquid guide ring, a round seat is fixedly installed at the axis center of the liquid guide ring, a shaft disk is rotatably installed on the outer surface of the round seat, an inner gear ring is fixedly installed on the outer surface of the shaft disk, the round seat is fixedly connected to the output end of the motor, a positioning disk group is meshed on the outer surface of the inner gear ring, and an external connecting ring is fixedly installed on the outer surface of the positioning disk group.

[0013] Preferably, the positioning disk group includes a collecting disk, and the side of the outer surface of the collecting disk is fixedly mounted with an outer gear disk, and the inside of the collecting disk is fixedly mounted with a circular shaft, and four circular shafts are provided, and the four circular shafts are distributed in a circle inside the collecting disk, and a planetary disk is rotatably mounted on the outer surface of the circular shaft, and a retaining ring is rotatably mounted on the surface of the planetary disk, and the retaining ring passes through the planetary disk and is connected to the collecting disk, and the planetary disk is respectively meshed with the inner gear ring and the outer gear disk. The staff starts the motor so that the output end of the motor drives the shaft disk to rotate, and at this time the inner gear ring installed on the outside of the shaft disk meshes with the planetary disk, and the planetary disk meshes with the outer gear disk, so that when the shaft disk rotates, the planetary disk rotates with it, and drives the positioning rod connected to the circular shaft to rotate, and the planetary disk is provided as a detachable structure to facilitate the replacement of the grinding size according to different models of parts.

[0014] Preferably, the collecting plate is fixedly mounted inside the outer ring, the collecting plate is fixedly mounted on the top of the frame, the circular shaft and the positioning rod are arranged on the same central axis, and the planetary plate is extrusion-fitted with the extrusion bag.

[0015] The present invention provides an ultra-precision double-sided grinding machine. It has the following beneficial effects:

[0016] 1. The ultra-precision double-sided grinding machine is installed by the staff under the polishing disc through the snap buckle, and then the staff starts the hydraulic cylinder to drive the hydraulic rod and the collar to move up and down. When the hydraulic rod moves downward, the positioning rod is connected to the circular shaft. At this time, the polishing disc sleeved on the outside of the positioning rod is squeezed by the cover plate and the positioning disc group, so that the polishing disc is deformed and fits with the mechanical parts. When the positioning disc group rotates, the positioning rod connected to the circular shaft drives the polishing disc to rotate, so that the mechanical parts installed on the snap ring will not rotate with the positioning rod and the polishing disc, thereby achieving the effect of double-sided grinding and improving the grinding efficiency.

[0017] 2. In this ultra-precision double-sided grinding machine, when the ring is driven downward by the hydraulic rod, the grinding block first contacts the mechanical part. As the hydraulic rod continues to squeeze downward, the clamping ring is squeezed to drive the ring sleeve below to slide upward on the surface of the positioning rod. At this time, the limit ring slides on the surface of the sliding support rod as the ring sleeve moves upward, so that the outer side of the extrusion bag is affected by the deformation and extends outward to fit above the mechanical part, so as to limit the grinding position of the mechanical part, which can ensure that during the grinding process of the mechanical part, the grinding pressure can be more evenly distributed on the surface of the mechanical part.

[0018] 3. The ultra-precision double-sided grinder has a positioning disc group and a polishing disc in a rotating state when the grinder is running. When grinding mechanical parts, the staff injects the grinding liquid into the conduit. At this time, the grinding liquid slides downward along the conduit and flows into the guide dispersion block and the diversion groove, and flows to the surface of the arc-shaped polishing disc, and is thrown outward as the polishing disc rotates, so that the contact area between the grinding liquid and the mechanical parts assembly is increased, so that the grinding liquid can fully act on the grinding area of ​​the mechanical parts, improve the utilization rate and avoid wasting the grinding liquid.

[0019] Fourth, in the ultra-precision double-sided grinding machine, the waste liquid generated during the grinding of mechanical parts slides along the liquid guide ring into the guide ring. The elastic sheets installed at both ends of the guide ring are set to a flexible material. As the waste liquid accumulated in the guide ring increases, the waste liquid is transported along the elastic sheets at both ends of the guide ring to the outlet flow channel to collect the waste liquid centrally.

[0020] 5. The ultra-precision double-sided grinding machine starts the motor through the staff, so that the output end of the motor drives the shaft disc to rotate. At this time, the inner gear ring installed on the outside of the shaft disc meshes with the planetary disc, and the planetary disc meshes with the outer gear disc. When the shaft disc rotates, the planetary disc rotates with it, and drives the positioning rod connected to the circular shaft to rotate. The planetary disc is set as a detachable structure to facilitate the replacement of the grinding size according to different models of parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of an ultra-precision double-sided grinding machine of the present invention;

[0022] Figure 2 Another perspective structural diagram of an ultra-precision double-sided grinding machine of the present invention;

[0023] Figure 3 It is a schematic diagram of the cross-sectional structure of the frame of the present invention;

[0024] Figure 4 It is an enlarged structural schematic diagram of the chip removal assembly of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the bottom grinding assembly of the present invention;

[0026] Figure 6 It is a schematic diagram of the connection structure between the bottom grinding assembly and the frame of the present invention;

[0027] Figure 7 It is a schematic diagram of the connection structure between the grinding assembly and the bottom grinding assembly of the present invention;

[0028] Figure 8 It is a schematic structural diagram of the grinding assembly of the present invention;

[0029] Fig. 9 It is a cross-sectional enlarged structural schematic diagram of the liquid guide member of the present invention;

[0030] Fig.10 It is a schematic diagram of the cross-sectional structure of the polishing disc of the present invention;

[0031] In the figure: 1, hydraulic cylinder; 2, base; 3, support frame; 4, hydraulic rod; 5, grinding assembly; 51, collar; 52, cover plate; 53, liquid guide; 531, catheter; 532, slot; 533, guide dispersion block; 534, connecting pipe; 535, positioning seat; 536, diverter slot; 54, connecting line; 55, positioning slot; 56, polishing disc; 561, snap ring; 562, sliding support rod; 563, connecting ring; 564, extrusion capsule; 565, snap plate; 566, internal pad ; 567, movable cavity; 568, limiting ring; 57, ring sleeve; 58, positioning rod; 59, snap buckle; 6, frame; 7, bottom grinding assembly; 71, round seat; 72, positioning plate group; 721, collecting plate; 722, planetary plate; 723, retaining ring; 724, outer gear plate; 725, round shaft; 73, outer connecting ring; 74, liquid guide ring; 75, inner gear ring; 76, shaft plate; 8, motor; 9, outlet flow channel; 10, connecting ring; 11, elastic sheet; 12, mounting seat; 13, limiting ring. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] The first embodiment, as Figures 1 to 4 As shown, the present invention provides a technical solution: a frame 6, a support frame 3 is fixedly installed on the top of the frame 6, a base 2 is fixedly installed in the middle of the top of the support frame 3, a hydraulic cylinder 1 is fixedly installed on the top of the base 2, a mounting seat 12 is fixedly installed inside the frame 6, the mounting seat 12 is fixedly installed at the bottom of the bottom grinding assembly 7, and outlet flow channels 9 are opened on both sides of the mounting seat 12, the outlet flow channels 9 are arranged on both sides of the inside of the frame 6, the outlet flow channels 9 penetrate the frame 6 and extend to the outside thereof, a limiting ring 13 is fixedly installed on the outer surface of the mounting seat 12, a guide ring 10 is fixedly installed inside the limiting ring 13, and elastic sheets 11 are fixedly installed at both ends of the guide ring 10. The waste liquid generated during the grinding of mechanical parts slides along the liquid guide ring 74 into the guide ring 10. The elastic sheets 11 installed at both ends of the guide ring 10 are set to a flexible material. As the waste liquid accumulated in the guide ring 10 increases, the waste liquid is transported along the elastic sheets 11 at both ends of the guide ring 10 to the outlet flow channel 9 to collect the waste liquid centrally.

[0034] A grinding assembly 5, a hydraulic rod 4 is fixedly mounted on the top of the grinding assembly 5, the grinding assembly 5 is movably mounted on the bottom of the base 2 through the hydraulic rod 4, and the hydraulic rod 4 penetrates the base 2 and is fixedly connected to the hydraulic cylinder 1;

[0035] A bottom grinding assembly 7, wherein a motor 8 is fixedly installed inside the bottom grinding assembly 7, wherein the motor 8 is adapted to the grinding assembly 5, wherein the bottom grinding assembly 7 is rotationally adapted to the grinding assembly 5 through the output end of the motor 8, wherein the bottom grinding assembly 7 is fixedly installed at the top middle of the frame 6, and wherein the bottom grinding assembly 7 and the grinding assembly 5 are arranged on the same central axis.

[0036] When grinding mechanical parts, the staff starts the hydraulic cylinder 1, so that the hydraulic cylinder 1 drives the hydraulic rod 4 and the grinding assembly 5 upward to separate the grinding assembly 5 from the bottom grinding assembly 7. Then the staff places the mechanical parts in the bottom grinding assembly 7, and then controls the hydraulic rod 4 and the grinding assembly 5 to move down to the top of the bottom grinding assembly 7, so that the grinding assembly 5 and the bottom grinding assembly 7 are squeezed and adapted, and grinding liquid is injected into the bottom grinding assembly 7. At this time, the grinding assembly 5 is sleeved on the outside of the motor 8. After the mechanical parts are placed, the staff starts the motor 8, so that the output end of the motor 8 drives the positioning disk group 72 to rotate, thereby grinding the mechanical parts.

[0037] The second embodiment is based on the first embodiment. Figures 4 to 5 As shown, the bottom grinding assembly 7 includes a liquid guide ring 74, a round seat 71 is fixedly installed at the axis of the liquid guide ring 74, a shaft disc 76 is rotatably installed on the outer surface of the round seat 71, an inner gear ring 75 is fixedly installed on the outer surface of the shaft disc 76, the round seat 71 is fixedly connected to the output end of the motor 8, the outer surface of the inner gear ring 75 is meshed with a positioning disc group 72, and the outer surface of the positioning disc group 72 is fixedly installed with an external connecting ring 73.

[0038] The positioning plate group 72 includes a collecting plate 721. In addition to an outer gear plate 724 fixedly installed on the side of the outer surface of the collecting plate 721, a circular shaft 725 is fixedly installed inside the collecting plate 721. Four circular shafts 725 are provided. The four circular shafts 725 are distributed in a circle inside the collecting plate 721. A planetary plate 722 is rotatably installed on the outer surface of the circular shaft 725. A retaining ring 723 is rotatably installed on the surface of the planetary plate 722. The retaining ring 723 penetrates the planetary plate 722 and is connected to the collecting plate 721. The planetary plate 722 is meshed with the inner gear ring 75 and the outer gear plate 724 respectively. The staff starts the motor 8 so that the output end of the motor 8 drives the shaft disc 76 to rotate. At this time, the inner ring gear 75 installed on the outside of the shaft disc 76 meshes with the planetary disc 722, and the planetary disc 722 meshes with the outer gear disc 724, so that when the shaft disc 76 rotates, the planetary disc 722 rotates along with it, and drives the positioning rod 58 connected to the circular shaft 725 to rotate. The planetary disc 722 is set as a detachable structure to facilitate the replacement of the grinding size according to different models of parts.

[0039] The collecting plate 721 is fixedly mounted inside the outer ring 73 , the collecting plate 721 is fixedly mounted on the top of the frame 6 , the circular shaft 725 and the positioning rod 58 are arranged on the same central axis, and the planetary plate 722 is extrusion-fitted with the extrusion bag 564 .

[0040] The third embodiment is based on the first and second embodiments. Figures 6 to 10 As shown, the grinding assembly 5 includes a collar 51, a connecting line 54 is fixedly installed at the bottom of the collar 51, and a plurality of connecting lines 54 are provided, and a section of the plurality of connecting lines 54 is distributed in a circle at the bottom of the collar 51, and a cover plate 52 is fixedly installed on the other end of the connecting line 54, and a positioning groove 55 is provided at the axis of the cover plate 52, and a liquid guide member 53 is fixedly installed on the top of the cover plate 52, and the liquid guide member 53 extends through the cover plate 52 to the inside thereof, and a positioning rod 58 is rotatably installed at the bottom of the cover plate 52, and the outer surface of the positioning rod 58 is sleeved with a ring sleeve 57, and the outer surface of the ring sleeve 57 is sleeved with a polishing disc 56, and the bottom of the polishing disc 56 is fixedly installed with a snap buckle 59. The staff installs the grinding block under the polishing disc 56 through the snap buckle 59, and then starts the hydraulic cylinder 1 to drive the hydraulic rod 4 and the collar 51 to move up and down. When the hydraulic rod 4 moves downward, the positioning rod 58 is connected to the circular shaft 725. At this time, the polishing disc 56 sleeved on the outside of the positioning rod 58 is squeezed by the cover plate 52 and the positioning disc group 72, so that the polishing disc 56 is deformed and fits with the mechanical parts. When the positioning disc group 72 rotates, the positioning rod 58 connected to the circular shaft 725 drives the polishing disc 56 to rotate, so that the mechanical parts installed on the retaining ring 723 will not rotate with the positioning rod 58 and the polishing disc 56, thereby achieving the effect of double-sided grinding and improving the grinding efficiency.

[0041] The collar 51 is sleeved on the outer surface of the hydraulic rod 4, the positioning groove 55 is sleeved on the outer surface of the motor 8, four groups of the liquid guide members 53 are provided, and the four groups of the liquid guide members 53 are distributed in a circular shape on the surface of the cover plate 52, the cover plate 52 is adapted to the bottom grinding assembly 7, two ring sleeves 57 are provided, and the two ring sleeves 57 are respectively sleeved on the two ends of the positioning rod 58, the ring sleeve 57 and the polishing disc 56 are slidably installed on the surface of the positioning rod 58, and the polishing disc 56 is extruded and adapted to the bottom grinding assembly 7.

[0042] The polishing disc 56 includes a connecting ring 563, two of which are provided. The two connecting rings 563 are respectively sleeved on the outer surface of the ring sleeve 57, and the inner wall of the connecting ring 563 is fixedly installed with a clamping ring 561. The outer surface of the clamping ring 561 is fixedly installed with an inner pad 566. The inner parts of the inner pad 566 and the clamping ring 561 are respectively installed with a sliding support rod 562 and a clamping piece 565. A limiting ring 568 is fixedly installed on the top of the clamping piece 565. The sliding support rod 562 is arranged above the limiting ring 568. The outer surface of the connecting ring 563 is fixedly installed with an extrusion bag 564, and the interior of the extrusion bag 564 is provided with a movable cavity 567. When the hydraulic rod 4 drives the ring 51 to move downward, the grinding block first contacts the mechanical part. As the hydraulic rod 4 continues to squeeze downward, the clamping ring 561 is squeezed to drive the ring sleeve 57 below to slide upward on the surface of the positioning rod 58. At this time, the limiting ring 568 slides on the surface of the sliding support rod 562 while the ring sleeve 57 moves upward, so that the outer side of the extrusion bag 564 is affected by the deformation and extends outward to fit above the mechanical part, so as to limit the grinding position of the mechanical part, which can ensure that during the grinding process of the mechanical part, the grinding pressure can be more evenly distributed on the surface of the mechanical part.

[0043] The connecting ring 563 is slidably installed on the outer surface of the positioning rod 58 through the ring sleeve 57, the extrusion bag 564 is set to a flexible material, and the sliding support rod 562 and the limiting ring 568 are frictionally adapted in the movable cavity 567.

[0044] The liquid guiding member 53 includes a positioning seat 535, which is fixedly installed inside the cover plate 52. A slot 532 is fixedly installed on the top of the positioning seat 535, a connecting tube 534 is fixedly installed on the top of the slot 532, and a conduit 531 is fixedly installed on the top of the connecting tube 534. A guide dispersion block 533 is fixedly installed on the inner wall of the positioning seat 535. There are a plurality of guide dispersion blocks 533, which are distributed in a circular shape on the surface of the positioning seat 535, and diverter grooves 536 are provided between the guide dispersion blocks 533. Since the positioning disc set 72 and the polishing disc 56 are in a rotating state when the grinder is running, when grinding mechanical parts, the staff injects the grinding liquid into the conduit 531. At this time, the grinding liquid slides downward along the conduit 531 and flows into the guide dispersion block 533 and the diverter groove 536, and flows to the surface of the arc-shaped polishing disc 56, and is thrown outward as the polishing disc 56 rotates, so as to increase the contact area between the grinding liquid and the mechanical parts assembly, so that the grinding liquid can fully act on the grinding area of ​​the mechanical parts, improve the utilization rate and avoid wasting the grinding liquid.

[0045] During use, when grinding mechanical parts, the staff starts the hydraulic cylinder 1, so that the hydraulic cylinder 1 drives the hydraulic rod 4 and the grinding assembly 5 upward to separate the grinding assembly 5 from the bottom grinding assembly 7. Then the staff places the mechanical parts in the bottom grinding assembly 7, and then controls the hydraulic rod 4 and the grinding assembly 5 to move down to the top of the bottom grinding assembly 7, so that the grinding assembly 5 and the bottom grinding assembly 7 are squeezed and adapted, and grinding liquid is injected into the bottom grinding assembly 7. At this time, the grinding assembly 5 is sleeved on the outside of the motor 8. After the mechanical parts are placed, the staff starts the motor 8, so that the output end of the motor 8 drives the positioning disk group 72 to rotate, thereby grinding the mechanical parts.

[0046] The staff installs the grinding block under the polishing disc 56 through the snap buckle 59, and then starts the hydraulic cylinder 1 to drive the hydraulic rod 4 and the collar 51 to move up and down. When the hydraulic rod 4 moves downward, the positioning rod 58 is connected to the circular shaft 725. At this time, the polishing disc 56 sleeved on the outside of the positioning rod 58 is squeezed by the cover plate 52 and the positioning disc group 72, so that the polishing disc 56 is deformed and fits with the mechanical parts. When the positioning disc group 72 rotates, the positioning rod 58 connected to the circular shaft 725 drives the polishing disc 56 to rotate, so that the mechanical parts installed on the retaining ring 723 will not rotate with the positioning rod 58 and the polishing disc 56, thereby achieving the effect of double-sided grinding and improving the grinding efficiency.

[0047] When the hydraulic rod 4 drives the ring 51 to move downward, the grinding block first contacts the mechanical part. As the hydraulic rod 4 continues to squeeze downward, the clamping ring 561 is squeezed to drive the ring sleeve 57 below to slide upward on the surface of the positioning rod 58. At this time, the limiting ring 568 slides on the surface of the sliding support rod 562 while the ring sleeve 57 moves upward, so that the outer side of the extrusion bag 564 is affected by the deformation and extends outward to fit above the mechanical part, so as to limit the grinding position of the mechanical part, which can ensure that during the grinding process of the mechanical part, the grinding pressure can be more evenly distributed on the surface of the mechanical part.

[0048] Since the positioning disc set 72 and the polishing disc 56 are in a rotating state when the grinder is running, when grinding mechanical parts, the staff injects the grinding liquid into the conduit 531. At this time, the grinding liquid slides downward along the conduit 531 and flows into the guide dispersion block 533 and the diverter groove 536, and flows to the surface of the arc-shaped polishing disc 56, and is thrown outward as the polishing disc 56 rotates, so as to increase the contact area between the grinding liquid and the mechanical parts assembly, so that the grinding liquid can fully act on the grinding area of ​​the mechanical parts, improve the utilization rate and avoid wasting the grinding liquid.

[0049] The staff starts the motor 8 so that the output end of the motor 8 drives the shaft disc 76 to rotate. At this time, the inner ring gear 75 installed on the outside of the shaft disc 76 meshes with the planetary disc 722, and the planetary disc 722 meshes with the outer gear disc 724, so that when the shaft disc 76 rotates, the planetary disc 722 rotates along with it, and drives the positioning rod 58 connected to the circular shaft 725 to rotate. The planetary disc 722 is set as a detachable structure to facilitate the replacement of the grinding size according to different models of parts.

[0050] The waste liquid generated during the grinding of mechanical parts slides along the liquid guide ring 74 into the guide ring 10. The elastic sheets 11 installed at both ends of the guide ring 10 are set to a flexible material. As the waste liquid accumulated in the guide ring 10 increases, the waste liquid is transported along the elastic sheets 11 at both ends of the guide ring 10 to the outlet flow channel 9 to collect the waste liquid centrally.

[0051] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ultra-precision double-sided grinding machine, characterized in that: include: A frame (6), a support frame (3) is fixedly installed on the top of the frame (6), a base (2) is fixedly installed in the middle of the top of the support frame (3), a hydraulic cylinder (1) is fixedly installed on the top of the base (2), a mounting seat (12) is fixedly installed inside the frame (6), the mounting seat (12) is fixedly installed at the bottom of the bottom grinding assembly (7), both sides of the mounting seat (12) are provided with outlet flow channels (9), the outlet flow channels (9) are arranged on both sides of the frame (6), the outlet flow channels (9) penetrate the frame (6) and extend to the outside thereof, a limiting ring (13) is fixedly installed on the outer surface of the mounting seat (12), a guide ring (10) is fixedly installed inside the limiting ring (13), and elastic sheets (11) are fixedly installed at both ends of the guide ring (10); A grinding assembly (5), wherein a hydraulic rod (4) is fixedly mounted on the top of the grinding assembly (5), the grinding assembly (5) is movably mounted on the bottom of the base (2) via the hydraulic rod (4), and the hydraulic rod (4) penetrates the base (2) and is fixedly connected to the hydraulic cylinder (1); A bottom grinding assembly (7), wherein a motor (8) is fixedly installed inside the bottom grinding assembly (7), the motor (8) is adapted to the grinding assembly (5), the bottom grinding assembly (7) is rotationally adapted to the grinding assembly (5) through the output end of the motor (8), the bottom grinding assembly (7) is fixedly installed at the top middle of the frame (6), and the bottom grinding assembly (7) and the grinding assembly (5) are arranged on the same central axis.

2. The ultra-precision double-sided grinding machine according to claim 1, characterized in that: The grinding assembly (5) comprises a collar (51), a connecting wire (54) is fixedly mounted on the bottom of the collar (51), a plurality of connecting wires (54) are provided, a section of the plurality of connecting wires (54) is distributed in a circular shape on the bottom of the collar (51), a cover plate (52) is fixedly mounted on the other end of the connecting wire (54), a positioning groove (55) is provided at the axis of the cover plate (52), a liquid guide member (53) is fixedly mounted on the top of the cover plate (52), the liquid guide member (53) penetrates the cover plate (52) and extends to the inside thereof, a positioning rod (58) is rotatably mounted on the bottom of the cover plate (52), a ring sleeve (57) is sleeved on the outer surface of the positioning rod (58), a polishing disc (56) is sleeved on the outer surface of the ring sleeve (57), and a snap-fit ​​buckle (59) is fixedly mounted on the bottom of the polishing disc (56).

3. The ultra-precision double-sided grinding machine according to claim 2, characterized in that: The sleeve (51) is sleeved on the outer surface of the hydraulic rod (4), the positioning groove (55) is sleeved on the outer surface of the motor (8), four groups of the liquid guide members (53) are provided, and the four groups of the liquid guide members (53) are distributed in a circular shape on the surface of the cover plate (52), the cover plate (52) is adapted to the bottom grinding assembly (7), two ring sleeves (57) are provided, and the two ring sleeves (57) are respectively sleeved on the two ends of the positioning rod (58), the ring sleeve (57) and the polishing disc (56) are slidably installed on the surface of the positioning rod (58), and the polishing disc (56) is extruded and adapted to the bottom grinding assembly (7).

4. The ultra-precision double-sided grinding machine according to claim 3, characterized in that: The polishing disc (56) comprises a connecting ring (563). Two connecting rings (563) are provided. The two connecting rings (563) are respectively sleeved on the outer surface of the ring sleeve (57). The inner wall of the connecting ring (563) is fixedly installed with a clamping ring (561). The outer surface of the clamping ring (561) is fixedly installed with an inner pad (566). The inner parts of the inner pad (566) and the clamping ring (561) are respectively installed with a sliding support rod (562) and a clamping piece (565). A limiting ring (568) is fixedly installed on the top of the clamping piece (565). The sliding support rod (562) is arranged above the limiting ring (568). The outer surface of the connecting ring (563) is fixedly installed with an extrusion bag (564). The interior of the extrusion bag (564) is provided with a movable cavity (567).

5. The ultra-precision double-sided grinding machine according to claim 4, characterized in that: The connecting ring (563) is slidably mounted on the outer surface of the positioning rod (58) through the ring sleeve (57), the extrusion bag (564) is set to be a flexible material, and the sliding support rod (562) and the limiting ring (568) are frictionally adapted in the movable cavity (567).

6. The ultra-precision double-sided grinding machine according to claim 3, characterized in that: The liquid guiding member (53) comprises a positioning seat (535), the positioning seat (535) is fixedly mounted inside the cover plate (52), a slot (532) is fixedly mounted on the top of the positioning seat (535), a connecting tube (534) is fixedly mounted on the top of the slot (532), a guide tube (531) is fixedly mounted on the top of the connecting tube (534), a guide dispersion block (533) is fixedly mounted on the inner wall of the positioning seat (535), and a diversion groove (536) is arranged between the guide dispersion blocks (533).

7. The ultra-precision double-sided grinding machine according to claim 1, characterized in that: A plurality of the guide dispersion blocks (533) are provided, and the plurality of the guide dispersion blocks (533) are distributed in a circular shape on the surface of the positioning seat (535).

8. The ultra-precision double-sided grinding machine according to claim 1, characterized in that: The bottom grinding assembly (7) comprises a liquid guide ring (74), a round seat (71) is fixedly mounted at the axis of the liquid guide ring (74), a shaft disc (76) is rotatably mounted on the outer surface of the round seat (71), an inner gear ring (75) is fixedly mounted on the outer surface of the shaft disc (76), the round seat (71) is fixedly connected to the output end of the motor (8), a positioning disc group (72) is meshed on the outer surface of the inner gear ring (75), and an outer connecting ring (73) is fixedly mounted on the outer surface of the positioning disc group (72).

9. The ultra-precision double-sided grinding machine according to claim 8, characterized in that: The positioning disk group (72) comprises a collecting disk (721). In addition to an outer toothed disk (724) fixedly mounted on the side of the outer surface of the collecting disk (721), a circular shaft (725) is fixedly mounted inside the collecting disk (721). Four circular shafts (725) are provided. The four circular shafts (725) are distributed in a circular shape inside the collecting disk (721). A planetary disk (722) is rotatably mounted on the outer surface of the circular shaft (725). A retaining ring (723) is rotatably mounted on the surface of the planetary disk (722). The retaining ring (723) passes through the planetary disk (722) and is connected to the collecting disk (721). The planetary disk (722) is meshed and matched with the inner gear ring (75) and the outer toothed disk (724) respectively.

10. The ultra-precision double-sided grinding machine according to claim 9, characterized in that: The collecting plate (721) is fixedly mounted inside the outer ring (73), the collecting plate (721) is fixedly mounted on the top of the frame (6), the circular shaft (725) and the positioning rod (58) are arranged on the same central axis, and the planetary plate (722) is extrusion-fitted with the extrusion bag (564).

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