Slice grinding wheel grinding tool

Abstract

The utility model discloses a sheet grinding wheel grinding tool, and relates to the field of grinding wheel manufacturing. The sheet grinding wheel grinding tool comprises a core rod, the core rod comprises a core rod body, positioning steps and a shaft shoulder, the positioning steps and the shaft shoulder are located on the peripheral wall of the core rod body, the positioning steps comprise the first positioning step, the second positioning step and the third positioning step, and the shaft shoulder is located between the first positioning step and the second positioning step. The diameter of the shaft shoulder is larger than that of the positioning step, and a positioning hole is formed between the lower surface of the shaft shoulder and the peripheral wall of the second positioning step; and the first positioning plate is connected to the peripheral wall of the core rod body in a sleeving mode, and the first positioning plate is located above the first positioning step. According to the tool provided by the utility model, after a workpiece is ground, the end surface shape variable of a base body is small, and the jumping is small.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding wheel manufacturing, in particular to a thin-slice grinding wheel grinding tool. Background Art

[0002] During the production process of grinding wheels, the grooving grinding wheel has the characteristics of large outer diameter, thin gold layer and deep cutting depth, which causes the base to be easily deformed when processing the gold layer, resulting in product scrapping.

[0003] Grinding fixtures are tools used to support, secure, and position the workpiece during the grinding process, ensuring stability and precision. Grinding fixtures maintain a relatively stable position and posture during the grinding process, thereby improving grinding accuracy and reducing errors and surface roughness. During the grinding process, the workpiece comes into contact with the grinding head, incurring a certain amount of wear. Grinding fixtures protect the components of the grinding machine. Grinding fixtures can improve processing efficiency, reduce production costs, and minimize errors and losses caused by human error.

[0004] Therefore, a new thin-sheet grinding wheel grinding tool is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to overcome the defects of the prior art and provide a thin-sheet grinding wheel grinding tool to solve the problem of deformation of large outer diameter thin-sheet grinding wheels during the grinding process. When in use, it can effectively reduce the deformation of the grinding wheel caused by lateral extrusion force.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The utility model is a thin-sheet grinding wheel grinding tool, comprising a core rod, the core rod comprising a core rod body and a positioning step and a shoulder located on the outer peripheral wall of the core rod body, the positioning step comprising a first positioning step, a second positioning step and a third positioning step, the shoulder being located between the first positioning step and the second positioning step, the diameter of the shoulder being larger than the diameter of the positioning step, and a positioning hole being formed between the lower surface of the shoulder and the outer peripheral wall of the second positioning step.

[0008] A first positioning plate is sleeved on the outer peripheral wall of the core rod body, and the first positioning plate is located above the first positioning step.

[0009] A first pressing plate is arranged on the outer peripheral wall of the first positioning step through the first positioning plate.

[0010] A small pressing plate is sleeved on the outer peripheral wall of the third positioning step and is arranged below the second positioning step.

[0011] The second positioning plate is sleeved on the outer peripheral wall of the core rod body and is located below the small pressure plate.

[0012] A fixing bolt is sleeved on the outer peripheral wall of the core rod body and is located between the small pressure plate and the second positioning plate.

[0013] The second pressing plate is arranged on the outer peripheral wall of the small pressing plate through the second positioning plate.

[0014] In some embodiments, both side axes of the mandrel body are partially threaded.

[0015] In some embodiments, a diameter of the first positioning step is smaller than a diameter of the second positioning step but larger than a diameter of the third positioning step.

[0016] In some embodiments, the threaded hole of the fixing bolt cooperates with the thread to be rotated and tightened.

[0017] In some embodiments, a positioning ring is provided on the second pressure plate, and the positioning ring is in close contact with the outer peripheral wall of the small pressure plate.

[0018] In some embodiments, the wall of the central hole of the first pressing plate and the outer peripheral wall of the first positioning step are in close contact with each other.

[0019] In some embodiments, the first pressing plate, the second pressing plate and the small pressing plate are all hollow annular structures and have coaxial holes.

[0020] In some embodiments, the first positioning plate, the second positioning plate and the fixing bolt are all hollow annular and have coaxial threaded holes.

[0021] In some embodiments, the coaxial holes of the first pressing plate and the second pressing plate are coaxially positioned with the core rod.

[0022] In some embodiments, the first positioning plate, the first pressure plate, the small pressure plate, the second positioning plate, the fixing bolts, and the top periphery of the second pressure plate all have a pressure ring.

[0023] The utility model provides a thin-sheet grinding wheel grinding tool. Compared with the prior art, the utility model has the following advantages:

[0024] Beneficial effects:

[0025] 1. Improve machining accuracy: It can ensure that the position and posture of the workpiece during the grinding process are relatively stable, thereby improving the grinding accuracy, reducing the error and surface roughness of the workpiece. After the workpiece is ground, the deformation of the substrate end face is small and the runout is small.

[0026] 2. Protect the grinding machine: During the grinding process, the workpiece needs to contact with the grinding head and produce a certain amount of wear. The grinding tool can protect the grinding machine's spindle, guide rails and other machine tool components.

[0027] 3. Promote production efficiency: It can improve processing efficiency, reduce production costs, and also reduce errors and losses caused by human operation factors. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 This is a cross-sectional view of the thin-slice grinding wheel grinding tooling of the utility model after assembly;

[0030] Figure 2 This is a cross-sectional view of the core rod of the thin-slice grinding wheel grinding tool of the utility model;

[0031] Figure 3 This is a cross-sectional view of the first pressing plate of the thin-slice grinding wheel grinding tool of the utility model;

[0032] Figure 4 This is a cross-sectional view of the second pressing plate of the thin-slice grinding wheel grinding tool of the present invention;

[0033] Figure 5 This is a cross-sectional view of the first positioning plate of the thin-slice grinding wheel grinding tool of the present invention;

[0034] Figure 6 This is a cross-sectional view of the second positioning plate of the thin-slice grinding wheel grinding tool of the present invention;

[0035] Figure 7 This is a schematic diagram of the fixing bolts of the thin-slice grinding wheel grinding tool of the utility model;

[0036] Figure 8 This is a cross-sectional view of the fixing bolt of the thin-slice grinding wheel grinding tool of the utility model;

[0037] Figure 9 It is a cross-sectional view of a small pressing plate of a thin-slice grinding wheel grinding tool of the present invention.

[0038] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0039] 1. Mandrel; 11. Mandrel body; 111. Thread; 12. Conical center hole; 13. Positioning step; 131. First positioning step; 132. Second positioning step; 133. Third positioning step; 14. Shoulder; 15. Positioning hole; 2. First positioning plate; 21. First pressure ring; 3. First pressure plate; 31. Second pressure ring; 4. Small pressure plate; 41. Third pressure ring; 5. Second positioning plate; 51. Fourth pressure ring; 6. Fixing bolt; 61. Fifth pressure ring; 7. Second pressure plate; 71. Positioning ring; 72. Sixth pressure ring; 8. Workpiece. DETAILED DESCRIPTION

[0040] In order to help those skilled in the art better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of this application.

[0041] like Figure 1 and Figure 2 As shown, the utility model provides a thin-sheet grinding wheel grinding tool, which includes a core rod 1, the core rod 1 includes a core rod body 11, and concentric conical center holes 12 are provided at both ends of the central axis of the core rod body 11. The core rod includes a positioning step 13, and the positioning step 13 is arranged on the outer circumferential wall of the core rod body 11. The positioning step 13 includes a first positioning step 131, a second positioning step 132 and a third positioning step 133 arranged in sequence from top to bottom. The core rod 1 includes a shoulder 14, and the shoulder 14 is located between the first positioning step 131 and the second positioning step 132. The diameter of the shoulder 14 is larger than the diameter of the positioning step 13. The shoulder 14 is arranged on the circumferential wall of the core rod body 11. The diameter of the first positioning step 131 is smaller than the diameter of the second positioning step 132 but larger than the diameter of the third positioning step 133.

[0042] The shoulder 14 is provided with a positioning hole 15, which is enclosed between the lower surface of the shoulder 14 and the outer circumferential wall of the second positioning step 132. Threads 111 are partially provided on the outer circumferential walls of both ends of the core rod body 11.

[0043] like Figure 1 As shown, the thin-slice grinding wheel grinding tool includes a first positioning plate 2, which is sleeved on the outer peripheral wall of the mandrel body 11 through the thread 111. The first positioning plate 2 is located above the first positioning step 131.

[0044] like Figure 1 As shown, the thin-sheet grinding wheel grinding tool includes a first pressing plate 3, which is arranged on the outer peripheral wall of the first positioning step 13 through the first positioning plate 2. Specifically, the center hole wall of the first pressing plate 3 and the outer peripheral wall of the first positioning step 131 are in close contact with each other.

[0045] like Figure 1 As shown, the thin-slice grinding wheel grinding tool includes a small pressing plate 4, which is sleeved on the outer peripheral wall of the third positioning step 133 and arranged below the second positioning step 132.

[0046] like Figure 1 As shown, the thin-slice grinding wheel grinding tool includes a second positioning plate 5 , which is sleeved on the outer peripheral wall of the core rod body 11 through the thread 111 and is located below the small pressure plate 4 .

[0047] like Figure 1 and Figure 8 As shown, the thin-slice grinding wheel grinding fixture includes a fixing bolt 6, which is sleeved onto the outer peripheral wall of the mandrel body 11 and located between the small pressure plate 4 and the second positioning plate 5. The threaded hole of the fixing bolt 6 and the thread 111 on the mandrel body 11 can rotate and tighten together. The fixing bolt 6 can clamp the workpiece 8 between the shaft shoulder 14 and the small pressure plate 4.

[0048] like Figure 1 and Figure 4 As shown, the thin-slice grinding wheel grinding fixture includes a second pressing plate 7, which is arranged on the outer peripheral wall of the small pressing plate 4 via the second positioning plate 5. Specifically, the second pressing plate 7 is provided with a positioning ring 71, and the positioning ring 71 is in close contact with the outer peripheral wall of the small pressing plate 4. The first positioning plate 2 and the second positioning plate 5 are fastened to the first pressing plate 3 and the second pressing plate 7 via the thread 111.

[0049] like Figure 3 、 Figure 4 and Figure 9 As shown, the first pressing plate 3, the second pressing plate 7, and the small pressing plate 4 are all hollow annular structures and have coaxial holes.

[0050] like Figure 5 、 Figure 6 and Figure 8 As shown, the first positioning plate 2, the second positioning plate 5 and the fixing bolt 6 are all hollow annular and have coaxial threaded holes. The first positioning plate 2, the second positioning plate 5 and the fixing bolt 6 are threadedly connected to the core rod body 11 through the threaded holes.

[0051] like Figure 2 、 Figure 4 and Figure 9 As shown, the coaxial holes of the first pressing plate 3 and the second pressing plate 7 are coaxially matched and positioned with the core rod 1.

[0052] like Figure 1 As shown, the small pressure plate 4 can fix the workpiece 8 in the tooling through the fixing bolts 6 .

[0053] The first positioning plate 2, first pressure plate 3, small pressure plate 4, second positioning plate 5, fixing bolt 6, and second pressure plate 7 are all provided with pressure rings on their top peripheries, namely, the first pressure ring 21, the second pressure ring 31, the third pressure ring 41, the fourth pressure ring 51, the fifth pressure ring 61, and the sixth pressure ring 72. The second pressure ring 31 and the sixth pressure ring 72 clamp the outer edge of the workpiece 8, the fourth pressure ring 51 abuts against the bottom of the second pressure plate 7, and the first pressure ring 21 is pressed against the first pressure plate 3.

[0054] The third pressure ring 41 and the shaft shoulder jointly clamp the inner edge of the workpiece 8 , and the fifth pressure ring 61 rests on the bottom of the small pressure plate 4 .

[0055] When the present invention is used, the workpiece 8 is placed on the core rod 1 through the positioning hole 15, and the small pressure plate 4 is covered. The threaded hole of the fixing bolt 6 is threadedly engaged with the core rod 1 and rotated to tighten. The first pressure plate 3 is engaged with the first positioning step 131 of the core rod 1, and the middle threaded hole of the first positioning plate 2 is temporarily not tightened with the thread of the core rod 1. In the same way, the positioning ring 71 of the second pressure plate 7 is engaged with the outer peripheral wall of the small pressure plate 4, and the second positioning plate 5 is temporarily not tightened with the thread of the core rod 1. The core rod 1 is fixed on the grinding machine through the concentric conical center hole 12, and the end face runout of the workpiece 8 is measured by a dial indicator. The end face runout can measure the end face flatness of the workpiece 8. Then tighten the first positioning plate 2 and the second positioning plate 5 on both sides at the same time to ensure that the workpiece 8 will not be deformed. Grinding can be started after the tightening is completed.

[0056] Therefore, the thin-sheet grinding wheel grinding tool provided by the present invention has a small deformation of the base end face and a small runout after the workpiece 8 is ground. The grinding tool can ensure the stability and accuracy of the workpiece 8 during grinding, and can ensure that the position and posture of the workpiece 8 during the grinding process are relatively stable, thereby improving the grinding accuracy, reducing the error and surface roughness of the workpiece 8, protecting the components of the grinding machine tool, improving processing efficiency, reducing production costs, and also reducing errors and losses caused by human operation factors.

[0057] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0058] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A thin-sheet grinding wheel grinding tool, characterized in that: The thin-slice grinding wheel grinding tool comprises: A mandrel comprising a mandrel body and a positioning step and a shoulder located on an outer peripheral wall of the mandrel body, the positioning steps comprising a first positioning step, a second positioning step, and a third positioning step, the shoulder being located between the first positioning step and the second positioning step, the diameter of the shoulder being larger than the diameter of the positioning step, and a positioning hole being formed between a lower surface of the shoulder and an outer peripheral wall of the second positioning step; a first positioning plate, the first positioning plate being sleeved on the outer peripheral wall of the mandrel body and being located above the first positioning step; a first pressing plate, the first pressing plate being arranged on the outer peripheral wall of the first positioning step through the first positioning plate; a small pressing plate, the small pressing plate being sleeved on the outer peripheral wall of the third positioning step and being arranged below the second positioning step; a second positioning plate, the second positioning plate being sleeved on the outer peripheral wall of the core rod body and being located below the small pressing plate; a fixing bolt, the fixing bolt being sleeved on the outer peripheral wall of the core rod body and being located between the small pressure plate and the second positioning plate; The second pressing plate is arranged on the outer peripheral wall of the small pressing plate through the second positioning plate.

2. A thin-slice grinding wheel grinding tool according to claim 1, characterized in that: The shafts on both sides of the core rod body are partially threaded.

3. A thin-slice grinding wheel grinding tool according to claim 1, characterized in that: A diameter of the first positioning step is smaller than a diameter of the second positioning step but larger than a diameter of the third positioning step.

4. A thin-slice grinding wheel grinding tool according to claim 2, characterized in that: The threaded hole of the fixing bolt cooperates with the thread to be rotated and fastened.

5. The thin-slice grinding wheel grinding tool according to claim 1, characterized in that: The second pressing plate is provided with a positioning ring, and the positioning ring is in close contact with the outer peripheral wall of the small pressing plate.

6. The thin-slice grinding wheel grinding tool according to claim 1, characterized in that: The wall of the central hole of the first pressing plate and the outer peripheral wall of the first positioning step are in close contact with each other.

7. The thin-slice grinding wheel grinding tool according to claim 1, characterized in that: The first pressing plate, the second pressing plate and the small pressing plate are all hollow annular structures and have coaxial holes.

8. The thin-slice grinding wheel grinding tool according to claim 1, characterized in that: The first positioning plate, the second positioning plate and the fixing bolt are all hollow annular and have coaxial threaded holes.

9. The thin-slice grinding wheel grinding tool according to claim 1, characterized in that: The coaxial holes of the first pressing plate and the second pressing plate are coaxially matched and positioned with the core rod.

10. The thin-slice grinding wheel grinding tool according to claim 1, characterized in that: The first positioning plate, the first pressing plate, the small pressing plate, the second positioning plate, the fixing bolts and the top periphery of the second pressing plate are all provided with a pressing ring.

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