Ultra-precise double-sided grinding millstone trimmer with novel structure

Abstract

The novel-structure ultra-precise double-face grinding millstone trimmer comprises a double-face trimming disc, the double-face trimming disc is composed of a metal base disc and an outer grinding ring, the outer grinding ring is integrally formed at the outer edge position of the metal base disc, and a step part is arranged at the combination position of the metal base disc and the outer grinding ring; a material carrying hollowed-out part is arranged in the metal base disc, and a tooth groove is formed in the outer wall of the outer grinding ring. The tooth grooves in the outer wall of the outer grinding ring are used in cooperation with the revolution gear and the inner groove tooth ring of the double-face grinding machine, so that higher precision and efficiency are provided for grinding disc finishing, and the double-face finishing disc can conduct uniform grinding finishing through contact pressure generated between the double-face finishing disc and the upper grinding disc and between the double-face finishing disc and the lower grinding disc. The upper grinding disc stone and the lower grinding disc stone can be kept flat in the grinding process, the common situation that the surface of the grinding disc is uneven is avoided, and the grinding finishing precision and finishing efficiency are improved.

Description

Technical Field

[0001] The invention relates to the technical field of double-sided grinding machines, in particular to a new-structure ultra-precision double-sided grinding stone dresser. Background Art

[0002] Double-sided grinders play a key role in the processing of hard disk substrates. They mainly grind the upper and lower surfaces of the substrates evenly to ensure that the substrate surface is smooth, flat and reaches the required thickness. The surface quality of the hard disk substrate directly affects the performance of the hard disk. The grinding process helps to remove surface protrusions, improve roughness and improve the precision of the substrate to meet the stringent requirements of hard disk operation. The main structures of the double-sided grinder include the upper grinding disc, the lower grinding disc, the substrate support platform, the grinding disc rotation system and the cooling system. Among them, the rotation speed and pressure control system of the grinding disc are crucial and can accurately adjust the key parameters in the grinding process. After long-term use, the grinding disc will gradually wear out, resulting in uneven grinding effect, affecting production efficiency and substrate quality. Therefore, regular dressing of the upper and lower grinding discs is an important link to ensure the long-term and stable operation of the equipment. Dressing methods include manual dressing, automatic dressing and fine repair using dressing tools such as dressing knives and dressing wheels. Grinding disc dressing can restore its flatness and grinding performance to ensure grinding quality, and the selection and replacement of grinding fluid is also a key factor in extending the life of the grinding disc; For example, the structure of the modified grinding wheel component disclosed in the authorization announcement number CN206839873U includes a controller, a mechanical arm, a grinding piece, a grinding wheel bracket and a power device; the grinding piece is fixedly mounted on the free end of the mechanical arm, and the grinding wheel bracket is mounted on the processing station; the grinding wheel component is mounted on the grinding wheel bracket; the power device drives the grinding wheel component to rotate along its axis through a transmission device, and drives the grinding wheel component to rotate through the power device, and the controller controls the mechanical arm to drive the grinding piece to move along a specified trajectory, and processes the grinding wheel component to obtain the required grinding wheel component. The existing dressing technology and grinding disc dressing operation method are basically the same, that is, using external pressure to make The grinding wheel component is close to the surface to be polished of the upper and lower grinding discs. However, during the dressing process, the upper and lower grinding discs need to be removed from the double-sided grinder and polished and dressed one by one. This process involves steps such as equipment disassembly, transportation and reinstallation. The operation is complicated and time-consuming. After each removal of the grinding disc, the grinding disc also needs to be dressed one by one. The operation is cumbersome and it is easy to cause improper assembly or uneven dressing of the grinding disc due to human errors. In addition, during the manual dressing process, due to differences in operator experience and skills, it is also easy to cause uneven dressing of the grinding disc, resulting in an uneven surface, which will directly affect the effect of the subsequent grinding process, and may cause unstable surface quality of the substrate and affect the performance of the hard disk. Summary of the invention

[0003] The purpose of the present invention is to provide a novel structure of ultra-precision double-sided grinding stone dresser, which is composed of a metal base plate and an outer grinding ring. The metal base plate and the outer grinding ring are placed on the lower grinding stone and are embedded between the revolving gear and the inner groove gear ring of the double-sided grinder through the tooth grooves on the outer wall of the outer grinding ring. When the upper grinding stone of the double-sided grinder applies pressure to the metal base plate and the outer grinding ring, contact pressure is generated between the metal base plate and the outer grinding ring and the upper grinding stone and the lower grinding stone. At this time, the double-sided grinder is working, and the dresser formed by the metal base plate and the outer grinding ring continuously grinds the grinding surfaces of the upper grinding stone and the lower grinding stone to achieve equal pressure and double-sided synchronous correction to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a novel structure ultra-precision double-sided grinding stone dresser, comprising: A double-sided dressing disc, the double-sided dressing disc is composed of a metal base disc and an outer grinding ring, the outer grinding ring is integrally formed at the outer edge of the metal base disc, and a stepped portion is provided at the junction of the metal base disc and the outer grinding ring, a material loading hollow portion is provided inside the metal base disc, and a tooth groove is provided on the outer wall of the outer grinding ring; A concave hole, wherein a plurality of the concave holes are arranged in a circular shape at equal intervals on the upper surface and the lower surface of the metal base, a T-port docking column is elastically installed inside the concave hole, and a T-shaped circular joint is detachably installed on the end of the T-port docking column away from the metal base, and a steel ball is embedded on the end of the T-shaped circular joint away from the T-port docking column.

[0005] Preferably, the material loading hollow portion is composed of a circular central hollow portion arranged inside the metal base plate and four secondary circular hollow portions at the edge positions of the central circular hollow portion.

[0006] Preferably, the upper surface and the lower surface of the outer grinding ring are both provided with a plurality of linear chip removal grooves.

[0007] The effects achieved by the above components are: the linear chip removal groove structure design facilitates the discharge of slag, burrs and other debris generated during the grinding process, and the water cooling system of the double-sided grinder discharges metal chips or other impurities generated during the grinding correction process. Preferably, the metal base is made of high-strength stainless steel, the RA roughness value of the upper and lower surfaces of the metal base is <50 angstroms, the thickness of the metal base is >10mm, and the flatness of the upper and lower surfaces of the outer grinding ring is ≤0.01mm.

[0008] The effects achieved by the above components are: the ultra-high flatness of the metal base disc and the outer grinding ring ensures that the double-sided dressing disc can maintain perfect contact with the upper and lower grinding stones during the entire working process. No matter how the contact pressure of the grinding stones changes, the dressing disc can evenly dress the grinding disc surfaces on both sides to prevent uneven grinding caused by unevenness during the dressing process; Preferably, a separation plate is formed in the metal base plate between the two recessed holes on the same Z-axis extension line, and a multi-point elastic reset structure is provided between the separation plate and the T-port docking column.

[0009] Preferably, the multi-point elastic reset structure includes a plurality of equally spaced side countersunk holes arranged at the edge position of the top end of the T-port docking column, a center countersunk hole arranged at the center position of the top end of the T-port docking column, and a coil spring and an umbrella-shaped spring fixed inside the side countersunk holes and the center countersunk holes, and one end of the coil spring and the umbrella-shaped spring away from the T-port docking column is fixedly connected to the outer wall of one side of the partition plate.

[0010] The effect achieved by the above components is that the arrangement of the side countersunk holes and the center countersunk holes makes the spiral spring and the umbrella-shaped spring more stable when elastically compressed.

[0011] Preferably, a plurality of rectangular outer protrusions with equal spacing are integrally formed on the outer wall of the T-port docking column, and a rectangular groove for slidingly cooperating with the rectangular outer protrusions is provided on the inner wall of the recessed hole.

[0012] The effect achieved by the above components is: when the T-mouth docking column slides in the concave hole, the rectangular outer protrusion and the rectangular groove slide together, and the rectangular outer protrusion and the rectangular groove prevent the T-mouth docking column from rotating during the sliding process, thereby preventing the umbrella spring and the spiral spring from twisting.

[0013] Preferably, the Z-axis depths of the side countersink and the center countersink are equal, the diameter of the center countersink is larger than the diameter of the side countersink, four side countersinks are provided, and the four side countersinks are symmetrically structured about the center point of the T-port docking column.

[0014] Preferably, the interior of the T-port docking column is provided with a T-shaped cut-out groove for sliding connection of the T-shaped circular connector.

[0015] Preferably, the bottom end of the T-port docking column is provided with a second plane portion, the bottom end of the T-shaped circular joint extends to the outside of the T-port docking column and is provided with a first plane portion, and the steel ball is embedded inside the first plane portion.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the new-structure ultra-precision double-sided grinding stone dresser is provided with a structure that cooperates with each other, such as a metal base plate, an outer grinding ring, a stepped portion, and steel balls. The double-sided dressing plate is composed of a metal base plate and an outer grinding ring as a whole, and the tooth grooves on the outer wall of the outer grinding ring are used in cooperation with the revolving gear and the inner groove tooth ring of the double-sided grinder to provide higher precision and efficiency for the dressing of the grinding disc. The double-sided dressing disc can generate contact pressure with the upper and lower grinding discs to perform uniform grinding and dressing, which can ensure that the upper and lower grinding discs remain flat during the grinding process, avoid the common uneven surface of the grinding disc, and improve the grinding and dressing precision and dressing efficiency. The double-sided dressing disc, through the interaction between the metal base disc and the outer grinding ring, enables the dressing surfaces of the upper and lower grinding discs to be ground synchronously and evenly during the dressing process. This dressing method of equal pressure and double-sided synchronous correction ensures that the flatness and grinding performance of the upper and lower grinding discs are restored more accurately, avoiding the problem of uneven dressing that is easy to occur in traditional dressing methods. The design of the double-sided dressing disc enables the upper and lower grinding discs to be dressed at the same time without disassembling the equipment, reducing downtime and improving production efficiency. In the traditional dressing method, the operator needs to manually adjust the contact between the dressing tool and the surface of the grinding disc, and this process requires a high level of technology and experience. Improper operation may lead to uneven dressing of the grinding disc, which in turn affects the subsequent grinding effect. The double-sided dressing disc reduces the frequency of manual intervention through automated design, making the dressing process simpler and more intuitive. The operator only needs to monitor the dressing process, avoiding complex manual adjustments, reducing the difficulty of operation, and ensuring the stability of the dressing quality. In addition, the design of the double-sided dressing disc allows the entire dressing process to be completed inside the equipment, avoiding the trouble of repeated disassembly, reducing wear and misalignment between the various parts of the equipment, and maintaining the long-term stable operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main cross-sectional structure of the present invention; Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ; Figure 3 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ; Figure 4 The three-dimensional structure of the present invention is shown in FIG. Figure 3 ; Figure 5 It is a schematic diagram of a three-dimensional cross-sectional structure of the present invention; Figure 6 It is a schematic diagram of the three-dimensional cross-sectional structure of the double-sided trimming disk of the present invention; Figure 7The three-dimensional structure of the T-port docking column of the second embodiment of the present invention is shown in FIG. Figure 1 ; Figure 8 It is a three-dimensional structural schematic diagram of the umbrella-shaped spring and the T-port docking column in the connected state according to the second embodiment of the present invention; Fig. 9 The three-dimensional structure of the T-port docking column of the second embodiment of the present invention is shown in FIG. Figure 2 ; Fig.10 It is a schematic diagram of the three-dimensional structure of a T-shaped circular joint according to the third embodiment of the present invention.

[0018] In the figure: 1. double-sided dressing disk; 2. metal base disk; 201. material loading hollow part; 3. outer grinding ring; 301. tooth groove; 4. step part; 5. linear chip groove; 6. concave hole; 601. rectangular groove; 7. T-mouth docking column; 701. edge countersunk hole; 702. center countersunk hole; 703. umbrella-shaped spring; 704. spiral spring; 705. rectangular outer protrusion; 706. T-shaped cutting groove; 707. second plane part; 8. T-shaped circular joint; 801. first plane part; 9. steel ball; 10. separator disk. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. 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.

[0020] Embodiment 1, by Figures 1 to 6 The present invention comprises a double-sided dressing disc 1, which is composed of a metal base disc 2 and an outer grinding ring 3. The outer grinding ring 3 is integrally formed at the outer edge of the metal base disc 2, and a step portion 4 is provided at the joint position of the metal base disc 2 and the outer grinding ring 3. A material loading hollow portion 201 is provided inside the metal base disc 2, and a tooth groove 301 is provided on the outer wall of the outer grinding ring 3. A plurality of concave holes 6 are arranged in an annular manner at equal intervals on the upper surface and the lower surface of the metal base plate 2, a T-shaped docking column 7 is elastically installed inside the concave hole 6, and a T-shaped circular joint 8 is detachably installed at one end of the T-shaped docking column 7 away from the metal base plate 2, and a steel ball 9 is embedded at one end of the T-shaped circular joint 8 away from the T-shaped docking column 7; The material-carrying hollow portion 201 is composed of a circular central hollow portion arranged inside the metal base plate 2 and four secondary circular hollow portions at the edge of the central circular hollow portion. The upper surface and the lower surface of the outer grinding ring 3 are both provided with a plurality of linear chip removal grooves 5. When the double-sided dressing plate 1 revolves and rotates between the upper and lower grinding stones, the structural design of the linear chip removal grooves 5 facilitates the discharge of slag, burrs and other debris generated during the grinding stone dressing process, and the metal chips or other impurities generated during the grinding correction process are discharged by the water cooling system of the double-sided grinder; The metal base plate 2 is made of high-strength stainless steel material, the RA roughness value of the upper and lower surfaces of the metal base plate 2 is <50 angstroms, the thickness of the metal base plate 2 is >10mm, and the flatness of the upper and lower surfaces of the outer grinding ring 3 is ≤0.01mm. The ultra-high flatness of the metal base plate 2 and the outer grinding ring 3 ensures that the double-sided dressing plate 1 can maintain perfect contact with the upper and lower grinding stones during the entire working process. No matter how the contact pressure of the grinding stone changes, the dressing plate can evenly dress the grinding surface on both sides to prevent uneven grinding due to unevenness during the dressing process.

[0021] Embodiment 2, based on embodiment 1, Figure 7 , Figure 8 and Fig. 9 It is given that a separation plate 10 is formed in the metal base plate 2 between the two concave holes 6 on the same Z-axis extension line, and a multi-point elastic reset structure is arranged between the separation plate 10 and the T-port docking column 7. The multi-point elastic reset structure includes a plurality of equally spaced side countersunk holes 701 arranged at the edge position of the top end of the T-port docking column 7, a center countersunk hole 702 arranged at the center position of the top end of the T-port docking column 7, and a spiral spring 704 and an umbrella-shaped spring 703 fixed inside the side countersunk hole 701 and the center countersunk hole 702. The ends of the spiral spring 704 and the umbrella-shaped spring 703 away from the T-port docking column 7 are fixed to the outer wall of one side of the separation plate 10. When the double-sided dressing disc 1 is installed in the double-sided grinding machine through the outer grinding ring 3 and the tooth groove 301, and the upper grinding disc stone is pressed downward, the upper and lower surfaces of the metal base disc 2 will contact the upper and lower grinding disc stones through the steel balls 9, and as the downward pressure of the upper grinding disc stone increases, the T-mouth docking column 7, the T-shaped circular joint 8, and the steel balls 9 will gradually be retracted into the concave hole 6, so that the spiral spring 704 and the umbrella spring 703 are in a compressed state, and the spiral spring 704 and the umbrella spring 703 are used to ensure that the steel balls 9 are always in contact with the grinding surface of the grinding disc stone, and the steel balls 9 are used to assist the double-sided dressing disc 1 to orbit and rotate between the upper and lower grinding disc stones for grinding correction; The Z-axis depths of the side countersunk holes 701 and the center countersunk holes 702 are equal, the diameter of the center countersunk hole 702 is larger than the diameter of the side countersunk holes 701, four side countersunk holes 701 are provided, and the four side countersunk holes 701 are symmetrically structured about the center point of the T-port docking column 7. The arrangement of the side countersunk holes 701 and the center countersunk hole 702 makes the coil spring 704 and the umbrella spring 703 more stable when elastically compressed; When the upper and lower surfaces of the outer grinding ring 3 are in contact with the upper and lower grinding discs, the revolution and rotation of the outer grinding ring 3 will be synchronously trimmed, that is, the upper and lower grinding discs are trimmed at the same time to ensure that the upper and lower grinding disc surfaces are evenly ground at the same time; A plurality of equally spaced rectangular convex portions 705 are integrally formed on the outer wall of the T-port docking column 7, and a rectangular groove 601 for slidingly cooperating with the rectangular convex portion 705 is provided on the inner wall of the recessed hole 6. When the T-port docking column 7 slides in the recessed hole 6, the rectangular convex portion 705 slides with the rectangular groove 601. The rectangular convex portion 705 and the rectangular groove 601 prevent the T-port docking column 7 from rotating during the sliding process, thereby preventing the umbrella-shaped spring 703 and the spiral spring 704 from twisting.

[0022] Embodiment 3, based on embodiment 2, Fig.10 It is shown that the interior of the T-shaped docking column 7 is provided with a T-shaped cut-out groove 706 for sliding connection of the T-shaped circular connector 8, the bottom end of the T-shaped docking column 7 is provided with a second plane portion 707, the bottom end of the T-shaped circular connector 8 extends to the outside of the T-shaped docking column 7 and is provided with a first plane portion 801, and the steel ball 9 is embedded in the inside of the first plane portion 801; When the staff installs the T-shaped circular connector 8 and the steel ball 9 onto the T-port docking column 7, the staff manually pulls the T-shaped docking column 7 out of the recessed hole 6 for a distance, so that the umbrella-shaped spring 703 and the coil spring 704 are in a stretched state, and then slides the T-shaped circular connector 8 into the T-shaped cut-out groove 706. At this time, the first plane portion 801 and the first plane portion 801 are not on the same plane. After the T-port docking column 7 and the T-shaped circular connector 8 are assembled, the staff loosens the T-port docking column 7, and the umbrella-shaped spring 703 and the coil spring 704 allow the T-port docking column 7 to be retracted into the recessed hole 6, and a part of the T-shaped circular connector 8 also enters into the recessed hole 6, and the recessed hole 6 is used to prevent the T-shaped docking column 7 and the T-shaped circular connector 8 from slipping.

[0023] Before installing the dresser in the embodiment of the present application, the operator needs to ensure that the double-sided grinder is in a stopped state to avoid accidents during operation, and check the various components of the grinder to ensure that the grinder is in good working condition, especially the gear system, upper and lower grinding stones and other components that cooperate with the dressing disc. Then, the double-sided dressing disc 1 is placed on the lower grinding stone of the double-sided grinder, and the outer grinding ring 3 is tightly fitted with the revolving gear and the inner groove gear ring of the double-sided grinder through the tooth groove 301 to ensure that the tooth groove 301 of the outer grinding ring 3 is fully meshed with the gear system of the double-sided grinder. The system is used to ensure that the double-sided dressing disc 1 can rotate synchronously with the upper and lower grinding discs without deviation. At this time, the lower surface of the outer grinding ring 3 contacts the upper surface of the lower grinding disc. Then, the control system of the double-sided grinder is used to adjust the upper grinding disc to a suitable height and contact pressure, that is, the lower surface of the upper grinding disc contacts the upper surface of the outer grinding ring 3 of the double-sided dressing disc 1. This contact pressure is set by the control system of the double-sided grinder, and the operator can fine-tune the pressure according to actual conditions to ensure that the double-sided dressing disc 1 can evenly contact the upper and lower grinding discs. When the double-sided grinder is started, , the upper grinding stone will apply pressure to the double-sided dressing disc 1, at this time, the elastic T-mouth docking column 7 in the concave hole 6 set on the upper and lower surfaces of the metal base plate 2 of the double-sided dressing disc 1 begins to play a role, and the combined structure of the T-mouth docking column 7, the T-shaped circular joint 8, and the steel ball 9 can automatically retract into the concave hole according to the change of contact pressure, that is, when the upper grinding stone applies a large pressure, the T-shaped circular joint 8 and the steel ball 9 thereon will retract into the concave hole 6, and still keep the contact between the steel ball 9 and the grinding disc; when the pressure applied by the upper grinding stone is reduced or the workload is light, the T-mouth docking column 7, the T-shaped circular joint 8, and the steel ball 9 will retract into the concave hole 6. The ball 9 will automatically rise and still maintain contact with the grinding disc, ensuring that the dressing disc can evenly and stably contact the grinding disc stone, and with the cooperation of the gear system of the grinder, it moves and grinds between the upper and lower grinding disc stones. During the rotation of the upper and lower grinding disc stones of the grinder, the tooth groove 301 of the outer grinding ring 3 cooperates with the revolving gear and the inner groove gear ring of the double-sided grinder, so that the double-sided dressing disc 1 can revolve and rotate with the operation of the double-sided grinder, thereby utilizing the uniform contact pressure of the outer grinding ring 3 to synchronously and accurately dress the surfaces of the upper and lower grinding disc stones.

[0024] 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.

[0025] 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. A new type of ultra-precision double-sided grinding stone dresser, characterized in that: include: A double-sided trimming disc (1), the double-sided trimming disc (1) comprising a metal base disc (2) and an outer grinding ring (3), the outer grinding ring (3) being integrally formed at the outer edge of the metal base disc (2), and a stepped portion (4) being provided at the junction of the metal base disc (2) and the outer grinding ring (3), a material loading hollow portion (201) being provided inside the metal base disc (2), and a tooth groove (301) being provided on the outer wall of the outer grinding ring (3); A plurality of the concave holes (6) are arranged in an annular manner at equal intervals on the upper surface and the lower surface of the metal base plate (2); a T-shaped docking column (7) is elastically installed inside the concave hole (6); and a T-shaped circular joint (8) is detachably installed at one end of the T-shaped docking column (7) away from the metal base plate (2); and a steel ball (9) is embedded at one end of the T-shaped circular joint (8) away from the T-shaped docking column (7).

2. The novel ultra-precision double-sided grinding stone dresser according to claim 1 is characterized in that: The material loading hollow portion (201) is composed of a circular central hollow portion arranged inside the metal base plate (2) and four secondary circular hollow portions at the edge of the central circular hollow portion.

3. The novel structure ultra-precision double-sided grinding stone dresser according to claim 1 is characterized in that: The upper surface and the lower surface of the outer grinding ring (3) are both provided with a plurality of linear chip removal grooves (5).

4. The novel structure ultra-precision double-sided grinding stone dresser according to claim 3 is characterized by: The metal base plate (2) is made of high-strength stainless steel material, the RA roughness values ​​of the upper and lower surfaces of the metal base plate (2) are less than 50 angstroms, the thickness of the metal base plate (2) is greater than 10 mm, and the flatness of the upper and lower surfaces of the outer grinding ring (3) is ≤0.01 mm.

5. The novel structure ultra-precision double-sided grinding stone dresser according to claim 4 is characterized in that: A separation plate (10) is formed in the metal base plate (2) between the two concave holes (6) on the same Z-axis extension line, and a multi-point elastic reset structure is provided between the separation plate (10) and the T-port docking column (7).

6. The novel ultra-precision double-sided grinding stone dresser according to claim 5 is characterized in that: The multi-point elastic reset structure comprises a plurality of equally spaced side countersunk holes (701) arranged at the top edge of the T-port docking column (7), a center countersunk hole (702) arranged at the center of the top of the T-port docking column (7), and a coil spring (704) and an umbrella-shaped spring (703) fixed inside the side countersunk hole (701) and the center countersunk hole (702), wherein one end of the coil spring (704) and the umbrella-shaped spring (703) away from the T-port docking column (7) is fixedly connected to an outer wall of one side of the separation plate (10).

7. The novel ultra-precision double-sided grinding stone dresser according to claim 6 is characterized by: A plurality of rectangular outer protrusions (705) with equal spacing are integrally formed on the outer wall of the T-port docking column (7), and a rectangular groove (601) for slidingly cooperating with the rectangular outer protrusions (705) is provided on the inner wall of the recessed hole (6).

8. The novel ultra-precision double-sided grinding stone dresser according to claim 6 is characterized by: The Z-axis depths of the side countersunk holes (701) and the center countersunk holes (702) are equal, the diameter of the center countersunk hole (702) is larger than the diameter of the side countersunk holes (701), four side countersunk holes (701) are provided, and the four side countersunk holes (701) are symmetrically structured about the center point of the T-port docking column (7).

9. The novel ultra-precision double-sided grinding stone dresser according to claim 8 is characterized in that: The interior of the T-port docking column (7) is provided with a T-shaped cut-out groove (706) for the T-shaped circular connector (8) to be slidably connected.

10. The novel ultra-precision double-sided grinding stone dresser according to claim 9, characterized in that: The bottom end of the T-joint column (7) is provided with a second plane portion (707), the bottom end of the T-shaped circular joint (8) extends to the outside of the T-joint column (7) and is provided with a first plane portion (801), and the steel ball (9) is embedded inside the first plane portion (801).

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