Novel fiber abrasive disc
By designing a nested lower extension ring and mating groove between the connecting plate of the fiber grinding sheet and the grinding sheet main body, and using the retaining member to limit the movement and rotation of the grinding sheet main body, the torsional peeling problem caused by the weakening of the bonding effect after long-term use of the fiber grinding sheet is solved, and higher bonding strength and torsion resistance are achieved.
Patent Information
- Application Number
- CN202421667332.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-15
AI Technical Summary
After long-term use of existing fiber grinding sheets, the bonding effect at the adhesive will weaken, resulting in the torsional trend between the grinding sheet and the connecting plate that cannot be effectively resisted, which may cause the grinding sheet to fall off.
A new type of fiber grinding sheet is designed, and its structure includes a grinding sheet body and a connecting plate. The bottom surface of the connecting plate is equipped with a lower extension ring and a mating groove of the grinding sheet body nested. A plurality of retaining parts are provided on the lower extension ring. The retaining parts extend into the grinding sheet body from the inner side of the lower extension ring to limit the movement and rotation freedom of the grinding sheet body, thereby resisting torsion.
By increasing the contact area of the glue and the nesting coordination of the retaining parts, the bonding strength and torsion resistance of the fiber grinding sheet and the connecting plate are effectively enhanced, and the grinding sheet is avoided during use.
Smart Images
Figure CN222903616U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of grinding tools, in particular to a novel fiber grinding disc. Background Art
[0002] Fiber grinding pads are tools used for grinding and polishing. They are usually made by mixing and pressing various types of fibers (such as alumina fibers, aluminum silicate fibers, etc.) with resin adhesives. This type of grinding pad has a porous structure, and the grinding surface of the grinding pad has a good heat dissipation effect during grinding.
[0003] A connecting plate is glued to the middle of the fiber polishing sheet, and the polishing sheet is installed on the cornea machine through the connecting plate. When polishing, the adhesive joint between the polishing sheet and the connecting plate resists the tendency of twisting between the polishing sheet and the connecting plate. However, after long-term use, the bonding effect of the adhesive joint will weaken, and there is no other structure between the polishing sheet and the connecting plate to resist the twisting tendency. After continued long-term use, or if the operation is improper or excessive force is used during polishing, it may cause additional impact and load on the connecting plate and the polishing sheet, causing the polishing sheet to fall off the connecting plate. Utility Model Content
[0004] In view of the above problems, the utility model provides a new type of fiber grinding disc, whose structure includes a grinding disc main body and a connecting disc, the bottom surface of the connecting disc is a connecting surface connected to the grinding disc main body, wherein a sunken matching groove is provided in the middle of the grinding disc main body, and a lower extension ring is provided on the bottom surface of the connecting disc and is nested with the matching groove, the bonding surface of the grinding disc main body and the connecting disc includes the bottom and side surfaces of the matching groove and the top surface of the grinding disc main body, and a plurality of fixing members are provided laterally on the lower extension ring, the tail of the fixing member is engaged with the lower extension ring, and the fixing member on the lower extension ring extends into the grinding disc main body from the middle of the lower extension ring.
[0005] As a further feature of the utility model, the retaining member limits the freedom of the grinding plate body to move along the axial direction of the connecting disk and the freedom to rotate around the axis of the connecting disk.
[0006] As a further feature of the utility model, the retaining piece passes from the inner side of the lower extension ring to the outer side into the grinding plate body, a head is provided at one end of the retaining piece close to the middle of the connecting plate, and a clearance groove is provided in the lower extension ring for accommodating the head of the retaining piece.
[0007] As a further feature of the present invention, the width of the opening of the clearance groove is smaller than the width of the inner side of the clearance groove, and the width of the outer side of the head of the retaining member is smaller than the width of the inner side of the retaining member.
[0008] As a further feature of the present invention, the retaining member is in the shape of a nail, and the tail of the retaining member is sharp.
[0009] As a further feature of the present invention, a pushing plate is further included, wherein the pushing plate works in the connecting plate, and the pushing plate contacts the retaining member to push the retaining member into the grinding disc body.
[0010] As a further feature of the utility model, the side surface of the pushing disk includes a ramp structure, the inclination direction of the ramp structure is tangent to the rotation direction of the pushing disk, the ramp structure includes an inner end close to the center of the pushing disk and an ejection end close to the inner wall of the lower extension ring, and the retaining member is driven by the pushing disk to move from the inner end to the ejection end through the ramp structure.
[0011] As a further feature of the utility model, a positioning ring is provided on the inner side of the connecting disk, and a sleeve ring nested with the positioning ring is provided on the top of the pushing disk.
[0012] As a further feature of the utility model, a recessed operating portion is provided inside the pushing disk.
[0013] As a further feature of the utility model, the diameter of the top end of the matching groove is smaller than the diameter of the bottom end of the matching groove, and the diameter of the top end of the lower extension ring is smaller than the diameter of the bottom end of the matching groove.
[0014] Compared with the prior art, the utility model has the following beneficial effects:
[0015] The utility model provides mutually nested matching grooves and a lower extension ring between the grinding disc body and the connecting ring, thereby increasing the contact area of the glue, and a retaining piece is provided on the lower extension ring and inserted into the grinding disc body in the lateral direction, so that the grinding disc body can resist the torsion between the connecting disc and the retaining piece on the basis of the adhesive layer formed by the glue, thereby avoiding torsion and falling off;
[0016] On the basis of the connection plate being matched with the grinding disc body through the retaining piece, the utility model sets the retaining piece head and the clearance groove on the lower extension ring to be stepped with a small outside and a large inside. Those skilled in the art can set the width of the outer side of the retaining piece head to be larger than the width of the outer side of the clearance groove, so that the nail-shaped retaining piece 22 can be directly engaged with the clearance groove through the head after being inserted, or can set the width of the outer side of the retaining piece head to be smaller than the width of the outer side of the clearance groove, so that the nail-shaped retaining piece can be inserted together with the glue during insertion, so that the solidified glue forms a filling layer between the retaining piece head and the clearance groove, thereby preventing the retaining piece from falling off to the outside;
[0017] The utility model adopts a push plate with a slope structure to drive the nail-shaped retaining piece to be inserted into the grinding plate body, so that the retaining piece in the connecting plate can achieve the required matching degree with the grinding plate body. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the use of the new fiber grinding disc of the utility model.
[0019] Figure 2 Schematic diagram of the structural breakdown of the fiber grinding disc.
[0020] Figure 3 It is a schematic diagram of the top view structure of the fiber grinding disc.
[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the push disk fitting inside the connecting disk.
[0022] Figure 5 It is a schematic diagram of the working state of the push disk.
[0023] In the figure: 1, grinding plate body; 2, connecting plate; 1a, matching groove; 21, lower extension ring; 22, retaining member; 23, pushing plate; 2a, clearance groove; 2b, positioning ring; 23a, ejection end; 23b, inner end; 23c, sleeve ring; 23d, operating part. DETAILED DESCRIPTION
[0024] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0025] Embodiment 1, as Figure 1-Figure 5 As shown: The utility model provides a new type of fiber grinding disc, which comprises a grinding disc body 1 and a connecting disc 2. The bottom surface of the connecting disc 2 is a connecting surface that is bonded and connected with the grinding disc body 1 by glue. On this basis, a downwardly extending lower ring 21 is provided on the bottom surface of the connecting disc 2. A sunken matching groove 1a is provided in the middle of the grinding disc body 1. The lower ring 21 is nested with the matching groove 1a, so that the bonding surface formed between the grinding disc body 1 and the connecting disc 2 includes the bottom surface and side surface of the matching groove 1a and the top surface of the grinding disc body 1.
[0026] Moreover, a plurality of retaining members 22 are provided laterally on the lower extension ring 21, and the tail of the retaining member 22 is engaged with the lower extension ring 21. The retaining member 22 on the lower extension ring 21 extends into the grinding plate body 1 from the middle part of the inner side of the lower extension ring 21. The retaining member 22 limits the freedom of the grinding plate body 1 to move axially along the connecting disk 2. The lower extension ring 21 limits the freedom of the grinding plate body 1 to move in a direction perpendicular to the axis of the connecting disk 2. At the same time, the retaining member 22 also limits the freedom of the grinding plate body 1 to rotate around the axis of the connecting disk 2, thereby allowing the grinding plate body 1 to resist the torsion between the connecting disk 2 through the retaining member 22 to avoid twisting and falling off.
[0027] In this embodiment, the retaining member 22 is in the shape of a nail, and one end of the retaining member 22 close to the middle of the connecting plate 2 is provided with a head, and the other end is a tail and the tail is sharp, and is inserted into the grinding plate body 1 through the nail-like structure. A clearance groove 2a is provided in the lower extension ring 21 to accommodate the head of the retaining member 22. Moreover, the width of the opening of the clearance groove 2a is smaller than the width of the inner side of the clearance groove 2a, and the width of the outer side of the head of the retaining member 22 is smaller than the width of the inner side of the retaining member 22, that is, it is in the shape of a step with a small outside and a large inside, so that It is known to those skilled in the art that the width of the outer side of the head of the retaining member 22 can be set to be larger than the width of the outer side of the clearance groove 2a, so that the nail-shaped retaining member 22 can be directly engaged with the clearance groove 2a through the head after being inserted. The width of the outer side of the head of the retaining member 22 can also be set to be smaller than the width of the outer side of the clearance groove 2a, so that the nail-shaped retaining member 22 can be inserted together with the insertion glue, and the solidified glue can form a filling layer between the head of the retaining member 22 and the clearance groove 2a, thereby preventing the retaining member 22 from falling off to the outside.
[0028] In this embodiment, the fiber grinding disc also includes a pushing plate 23, which works in the connecting plate 2. The pushing plate 23 contacts the retaining member 22 to push the retaining member 22 into the grinding disc body 1. Specifically, the side surface of the pushing plate 23 includes a ramp structure, and the inclination direction of the ramp structure is tangent to the rotation direction of the pushing plate 23. The ramp structure includes an inner end 23b close to the center of the pushing plate 23 and an ejection end 23a close to the inner wall of the lower extension ring 21. The retaining member 22 is driven by the pushing plate 23 to move from the inner end 23b to the ejection end through the ramp structure; 23a.
[0029] In order to facilitate operation, a plurality of recessed operating parts 23d are provided inside the push plate 23. When in use, the bottom and side surfaces of the matching groove 1a of the grinding plate body 1 and the top surface of the grinding plate body 1 are brushed with glue, and then the connecting plate 2 is inserted into the matching groove 1a of the grinding plate body 1. At this time, the retaining member 22 is in the connecting plate 2 and the tail is engaged with the lower extension ring 21 and has not yet extended. After the connecting plate 2 is bonded to the grinding plate body 1, the push plate 23 is inserted into the connecting plate 2 so that the head of the retaining member 22 is inside. The plurality of recessed operating parts 23d are then pinched by fingers to rotate the push disk 23, so that the nail-shaped retaining member 22 is driven by the push disk 23 to move from the inner end 23b to the ejection end 23a via the slope structure, thereby making the nail-shaped retaining member 22 extend laterally from the downward extension ring 21 and be inserted into the grinding sheet body 1, so that the connecting disk 2 and the grinding sheet body 1 are further fixed, thereby allowing the grinding sheet body 1 to resist the torsion between the connecting disk 2 and the retaining member 22 to avoid twisting and falling off.
[0030] Embodiment 2, based on embodiment 1, as Figure 4As shown: a positioning ring 2b is provided on the inner side of the connecting disk 2, and a sleeve ring 23c is provided on the top of the pushing disk 23, which is nested with the positioning ring 2b. The positioning ring 2b is used to locate the center position of the pushing disk 23, so that the pushing disk 23 can rotate and evenly push the surrounding nail-shaped retaining parts 22. Those skilled in the art can also nest the positioning ring 2b and the sleeve ring 23c according to actual needs to form a product used together with the connecting disk 2.
[0031] Embodiment 3, on the basis of embodiment 1, the diameter of the top end of the matching groove 1a of the connecting plate 2 is smaller than the diameter of the bottom end of the matching groove 1a, and the diameter of the top end of the lower extension ring 21 is smaller than the diameter of the bottom end of the matching groove 1a. In addition to increasing the bonding area of the glue, when the connecting plate 2 is bonded to the grinding plate body 1 by glue, the solidified glue can form a filling layer between the side of the lower extension ring 21 and the matching groove 1a, thereby preventing the connecting plate 2 from falling off to the outside.
[0032] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
Claims
1. A novel fiber grinding disc, which comprises a grinding disc body and a connecting disc, wherein the bottom surface of the connecting disc is a connecting surface connected to the grinding disc body, and is characterized in that: A sunken matching groove is provided in the middle of the grinding disc body, a downwardly extending lower ring is provided on the bottom surface of the connecting plate and is nested with the matching groove, and the bonding surface of the grinding disc body and the connecting plate includes the bottom and side surfaces of the matching groove and the top surface of the grinding disc body; A plurality of retaining members are arranged laterally on the lower extension ring, and the tails of the retaining members are engaged with the lower extension ring. The retaining members on the lower extension ring extend into the grinding plate body from the middle of the lower extension ring.
2. A novel fiber grinding disc according to claim 1, characterized in that: The retaining member limits the freedom of the grinding plate body to move along the axial direction of the connecting disk and the freedom to rotate around the axis of the connecting disk.
3. A novel fiber grinding disc according to claim 2, characterized in that: The retaining piece passes from the inner side of the lower extension ring to the outer side into the grinding plate body, and a head is provided at one end of the retaining piece close to the middle of the connecting plate, and a clearance groove is provided in the lower extension ring for accommodating the head of the retaining piece.
4. A novel fiber grinding disc according to claim 3, characterized in that: The width of the opening of the clearance groove is smaller than the width of the inner side of the clearance groove, and the width of the outer side of the head of the retaining member is smaller than the width of the inner side of the retaining member.
5. A novel fiber grinding disc according to any one of claims 1 to 4, characterized in that: The retaining piece is in a nail shape, and the tail of the retaining piece is sharp.
6. A novel fiber grinding disc according to claim 1, characterized in that: It also includes a pushing plate, which works in the connecting plate and is in contact with the retaining member to push the retaining member into the grinding plate body.
7. A novel fiber grinding disc according to claim 6, characterized in that: The side surface of the pushing disk includes a ramp structure, the inclination direction of the ramp structure is tangent to the rotation direction of the pushing disk, the ramp structure includes an inner end close to the center of the pushing disk and an ejection end close to the inner wall of the lower extension ring, and the retaining member is driven by the pushing disk to move from the inner end to the ejection end through the ramp structure.
8. A novel fiber grinding disc according to claim 7, characterized in that: A positioning ring is provided on the inner side of the connecting disk, and a sleeve ring which is nested with the positioning ring is provided on the top of the pushing disk.
9. A novel fiber grinding disc according to claim 7, characterized in that: A recessed operating portion is provided inside the pushing plate.
10. The novel fiber grinding disc according to claim 1, characterized in that: The diameter of the top end of the matching groove is smaller than the diameter of the bottom end of the matching groove, and the diameter of the top end of the lower extension ring is smaller than the diameter of the bottom end of the matching groove.