Brazing grinding wheel for polishing joint line of casting part
By attaching abrasive to only the grinding surfaces on both sides of the substrate on a brazed grinding wheel, the problem of damage to castings caused by abrasive at the top of the circumference in the prior art is solved, and efficient and low-cost grinding of complex castings is achieved.
Patent Information
- Application Number
- CN202520279473.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-02-21
AI Technical Summary
When using existing brazed grinding wheels to grind castings, the abrasive at the circumferential tip can cause excessive damage to the casting substrate.
Design a brazed grinding wheel in which the abrasive is only attached to the two grinding surfaces of the substrate, with no abrasive at the top of the circumference. It uses coaxial positioning holes for easy installation, and the diameter and width of the substrate are adjustable. The abrasive is attached starting from the outermost edge of the grinding surface.
It effectively avoids excessive grinding damage to the casting substrate, is suitable for efficient grinding of complex-shaped castings, and has high processing efficiency and low cost.
Smart Images
Figure CN223643415U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of grinding wheel, especially relates to a brazing grinding wheel for polishing joint line of castings. BACKGROUND
[0002] The joint line of castings is an inevitable phenomenon in the casting process, in order to ensure the appearance quality of the castings, eliminate stress concentration, and ensure the assembly size precision of the castings, facilitate subsequent processing, in the production process of the castings, the grinding wheel is needed to polish the joint line of the castings, and the gate and the residual burr.
[0003] The brazing grinding wheel can quickly remove the burr and the excess material of the joint line due to the sharp abrasive, and the abrasive of the brazing grinding wheel is firmly combined with the matrix and uniformly distributed due to the brazing process, so that the brazing grinding wheel has the advantages of high wear resistance and high precision, therefore, the brazing grinding wheel is often selected in the selection of the grinding wheel for polishing the joint line of the castings.
[0004] In the prior art, the abrasive of the brazing grinding wheel for polishing the joint line of the castings is not only distributed on the polishing surfaces of the two sides, but also on the circumferential top, so that when the brazing grinding wheel polishes the castings, although the abrasive on the polishing surfaces can remove the joint line, the gate and the residual burr on the polishing surface of the castings, the abrasive on the circumferential top can excessively polish the matrix of the castings and cause damage. SUMMARY
[0005] In view of the above-mentioned defects of the prior art, the purpose of the utility model is to provide a brazing grinding wheel for polishing the joint line of the castings, which is used to solve the problem that the brazing grinding wheel in the prior art causes excessive polishing and the abrasive on the circumferential top can damage the castings when polishing the castings.
[0006] To achieve the above-mentioned purpose and other related purposes, the utility model provides a brazing grinding wheel for polishing the joint line of the castings, which comprises a matrix and an abrasive, the matrix is provided with a positioning part, the abrasive is attached to the polishing surfaces of the two sides of the matrix, and the circumferential top of the matrix is free of abrasive.
[0007] Optionally, the positioning part is a positioning hole opened on the matrix, and the positioning hole is coaxial with the matrix.
[0008] Optionally, the diameter of the matrix is in the range of 30mm≤D≤300mm, and the width of the matrix is in the range of 1mm≤t≤50mm.
[0009] Optionally, the attachment range of the abrasive starts from the outermost side of the polishing surface of the matrix.
[0010] Optionally, the diameter of the substrate is 180 mm, the width of the substrate without abrasive is 15 mm, and the diameter of the positioning part is 22.23 mm.
[0011] As described above, the brazing grinding wheel of this utility model for grinding the seam line of castings has at least the following beneficial effects:
[0012] This brazed grinding wheel for polishing the seam line of castings has abrasive attached to the polishing surfaces on both sides of the substrate, with no abrasive on the top circumference of the substrate. Compared to existing technologies where the abrasive of the brazed grinding wheel is distributed not only on the polishing surfaces on both sides but also on the top circumference, this brazed grinding wheel only performs the polishing operation on the polishing surfaces when polishing castings with more complex shapes. Because there is no abrasive on the top circumference, it will not cause excessive polishing damage to the substrate of the casting. Attached Figure Description
[0013] Figure 1 The diagram shows a brazing grinding wheel for grinding the seam line of a casting according to this utility model.
[0014] Figure 2 The diagram shows a grinding device for installing a brazed grinding wheel for grinding the seam line of a casting, according to this utility model.
[0015] Figure 3 The diagram shows a casting polished by a brazed grinding wheel for polishing the seam line of a casting according to this utility model.
[0016] Component designation explanation
[0017] Brazed grinding wheel 1, base 11, grinding surface 111, circumferential top 112, positioning hole 113, abrasive 12;
[0018] Grinding equipment 2;
[0019] Casting 3, joint line 31. Detailed Implementation
[0020] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.
[0021] Please see Figures 1 to 3It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.
[0022] The following embodiments are for illustrative purposes only. These embodiments can be combined and are not limited to the content shown in any single embodiment below.
[0023] Please see Figure 1 and Figure 2 This utility model provides a brazed grinding wheel for grinding the seam line of castings. Like common grinding wheels, this brazed grinding wheel 1 also includes a base 11 and an abrasive 12. The abrasive 12 is attached to the base 11 by a brazing process. The base 11 is provided with a positioning part for mounting the brazed grinding wheel 1 on the grinding equipment 2.
[0024] like Figure 1 As shown, unlike existing technologies, the abrasive 12 is only attached to the grinding surfaces 111 on both sides of the substrate 11, while there is no abrasive 12 on the top circumference 112 of the substrate 11. This design, compared to the existing technology where the abrasive 12 of the brazed grinding wheel 1 is distributed not only on the grinding surfaces 111 on both sides but also on the top circumference 112, allows this brazed grinding wheel 1 to grind certain materials such as… Figure 3 When the shape of the casting 3 is relatively complex, only the abrasive 12 on the grinding surface 111 is grinding; because there is no abrasive 12 on the top circumference 112, the base of the casting 3 will not be damaged by excessive grinding.
[0025] In another implementation, please refer to Figure 1 and Figure 2 The positioning part is a positioning hole 113 opened on the base 11. The positioning hole 113 is coaxial with the base 11. The positioning part adopts the design of positioning hole 113 coaxial with the base 11, which not only simplifies the processing technology, but also makes it more convenient to install the brazed grinding wheel 1 onto the grinding equipment 2.
[0026] In another implementation, please refer to Figure 1The diameter of the base 11 ranges from 30mm to D and from 300mm to 1mm to 50mm. The width of the base 11 ranges from 1mm to t and from 50mm to 1mm to 1mm to 50mm. The designer selects the specific dimensions based on the different sizes and shapes of the castings 3 to be ground. For example, when grinding... Figure 3 When casting part 3 is shown, the dimensions of this brazed grinding wheel 1 can be designed as follows: the diameter of the base 11 is 180mm, the width of the base 11 without the abrasive 12 attached is 15mm, and the diameter of the positioning part is 22.23mm.
[0027] In another implementation, please refer to Figure 1 and Figure 3 The abrasive 12 is attached from the outermost edge of the grinding surface 111 of the substrate 11. The abrasive 12 may be attached only to the outermost ring of the grinding surface 111 of the substrate 11; or it may be attached from the outermost edge of the grinding surface 111 of the substrate 11 all the way to the positioning part; or it may be attached from the outermost edge of the grinding surface 111 of the substrate 11 to any point between the positioning part and the positioning part. The abrasive 12 is attached from the outermost edge of the grinding surface 111 of the substrate 11. Compared to attaching from a certain position inside the brazed grinding wheel 1, the brazed grinding wheel 1 can grind the joint line 31 of the casting 3 more quickly.
[0028] In other implementations, such as Figure 1 Figure 3 Figure 1 As shown, during the production of the brazed grinding wheel 1, a tooling is used to enclose the circumferential top 112 of the base 11, and then the abrasive 12 is attached to the grinding surfaces 111 on both sides of the base 11 in one step using a brazing process. Compared with the design of first attaching the abrasive 12 to the grinding surfaces 111 and the circumferential top 112 of the base 11 using a brazing process, and then removing the abrasive 12 from the circumferential top 112, the technical solution in this embodiment has higher processing efficiency, lower cost, and easier quality assurance.
[0029] In summary, this invention features a design where the abrasive 12 is attached to the grinding surfaces 111 on both sides of the substrate 11, and there is no abrasive 12 on the top circumference 112 of the substrate 11. Compared to the prior art where the abrasive 12 of the brazed grinding wheel 1 is distributed not only on the grinding surfaces 111 on both sides but also on the top circumference 112, this brazed grinding wheel 1, when grinding some castings 3 with complex shapes, only uses the abrasive 12 on the grinding surfaces 111 for grinding. Because there is no abrasive 12 on the top circumference 112, it avoids over-grinding and damage to the substrate of the casting 3. Therefore, this invention effectively overcomes the shortcomings of the prior art and has high industrial application value.
[0030] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
Claims
1. A brazed grinding wheel for grinding seams in castings, comprising a base and an abrasive, wherein a positioning part is provided on the base. Its features are: The abrasive is attached to the polishing surfaces on both sides of the substrate, while there is no abrasive on the top circumference of the substrate.
2. The brazed grinding wheel for grinding the seam line of castings according to claim 1, characterized in that: The positioning part is a positioning hole formed on the substrate, and the positioning hole is coaxial with the substrate.
3. The brazed grinding wheel for grinding the seam line of castings according to claim 1, characterized in that: The diameter of the substrate is in the range of 30mm ≤ D ≤ 300mm; The width of the substrate is in the range of 1mm ≤ t ≤ 50mm.
4. The brazed grinding wheel for grinding the seam line of castings according to claim 1, characterized in that: The abrasive adheres to the outermost edge of the abrasive surface of the substrate.
5. The brazed grinding wheel for grinding the seam line of castings according to claim 2, characterized in that: The diameter of the substrate is 180 mm, the width of the substrate without abrasive is 15 mm, and the diameter of the positioning part is 22.23 mm.