A ceramic bond cbn grinding wheel tooling mold

Abstract

The utility model discloses a kind of ceramic binder CBN grinding wheel tooling mould, including demoulding tool, mould, lower pressure head and upper pressure head;The utility model is provided with mould, and the mould inner end is provided with not less than two groups of die cavity, lower pressure head and upper pressure head are installed in die cavity, can be carried out cold press forming to grinding wheel, by expanding die cavity quantity, the single forming quantity of grinding wheel can be directly improved, and by the cooperation of the demoulding tool of mould lower side setting, grinding wheel is realized quick synchronous demoulding operation, the overall structure of the utility model is simple and effective, can effectively improve the production efficiency and demoulding operation of grinding wheel The convenience and security of, reduce production cost, with stronger practicality.

Description

Technical Field

[0001] This utility model relates to the field of grinding wheel production technology, specifically to a ceramic bonded CBN grinding wheel tooling mold. Background Technology

[0002] Ceramic bonded CBN grinding wheels are widely used in precision grinding and high-speed grinding due to their high hardness, high wear resistance and excellent thermal stability. Their manufacturing is usually carried out by powder metallurgy, in which cold pressing is the key blank forming process.

[0003] Existing cold-pressing molds are usually single-cavity structures, meaning that a set of molds can only press one grinding wheel at a time. This structure leads to low production efficiency and may increase production costs, making it difficult to meet the needs of mass production and thus having certain limitations. Utility Model Content

[0004] The purpose of this invention is to provide a ceramic-bonded CBN grinding wheel tooling mold to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a ceramic binder CBN grinding wheel tooling mold, including a demolding tooling, wherein a mold is provided at the top of the demolding tooling, and the mold is connected to not less than two sets of lower pressure heads and upper pressure heads; The demolding fixture includes a base plate, guide rods, ejector pins, threaded rods, and internal threaded holes. A set of guide rods is provided at each of the four ends of the top surface of the base plate. At least two sets of ejector pins are provided at the corresponding middle position on the top surface of the base plate. A set of threaded rods is connected to the bottom end of each guide rod and ejector pin. The top surface of the base plate is provided with internal threaded holes corresponding to the threaded rods.

[0006] Preferably, the outer middle of the mold is provided with a set of guide grooves, and the inner end of the mold is provided with no less than two sets of mold cavities, and each mold cavity is provided with a set of lower pressure head and upper pressure head.

[0007] Preferably, a set of vertical rods is provided at the middle of the top surface of the lower pressure head, and a sleeve groove is provided at the inner end of the upper pressure head.

[0008] Preferably, the upper pressure head is sleeved on the outside of the vertical rod through a groove.

[0009] Preferably, the mold has a cubic structure, and the guide groove is opposite to the guide rod.

[0010] Preferably, the number and position of the ejector pins are relative to the mold cavity.

[0011] Preferably, the lower pressure head slides with the upper pressure head and the mold cavity.

[0012] Compared with the prior art, the beneficial effects of this utility model are: By setting up a mold with at least two sets of mold cavities at the inner end of the mold, and installing a lower pressure head and an upper pressure head in the mold cavity, the grinding wheel can be cold-pressed and formed. By increasing the number of mold cavities, the number of grinding wheels formed at one time can be directly increased. In cooperation with the demolding fixture set below the mold, the grinding wheel can be quickly and synchronously demolded. The overall structure of this utility model is simple and effective, which can effectively improve the production efficiency of grinding wheels and the convenience and safety of demolding operation, reduce production costs, and has strong practicality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the exploded structure of this utility model; Figure 2 This is a schematic diagram of the demolding tooling structure of this utility model; Figure 3 This is a schematic diagram of the mold structure of this utility model; Figure 4 This is a schematic diagram of the lower pressure head and upper pressure head structure of this utility model.

[0014] In the diagram: demolding fixture-1, mold-2, lower pressure head-3, upper pressure head-4, base plate-11, guide rod-12, ejector pin-13, threaded rod-14, internal threaded hole-15, guide groove-21, mold cavity-22, vertical rod-31, sleeve groove-41. Detailed Implementation

[0015] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.

[0016] Please see Figure 1 This utility model provides a ceramic binder CBN grinding wheel tooling mold, including a demolding tooling 1, a mold 2 at the top of the demolding tooling 1, and at least two sets of lower pressure heads 3 and upper pressure heads 4 installed inside the mold 2.

[0017] Please see Figure 1-2 This utility model provides a ceramic binder CBN grinding wheel tooling mold. The demolding tooling 1 includes a base plate 11, guide rods 12, ejector pins 13, threaded rods 14 and internal threaded holes 15. A set of guide rods 12 is connected to each of the four ends of the top surface of the base plate 11. At least two sets of ejector pins 13 are provided on the top surface of the base plate 11 corresponding to the middle position. A set of threaded rods 14 is integrally connected to the bottom end of the guide rods 12 and ejector pins 13. An internal threaded hole 15 corresponding to the threaded rods 14 is opened on the top surface of the base plate 11. The guide rods 12 and ejector pins 13 can be installed on the top surface of the base plate 11 by the cooperation of the threaded rods 14 and the internal threaded holes 15.

[0018] Please see Figure 3This utility model provides a ceramic binder CBN grinding wheel tooling mold. The mold 2 is a cubic structure. A set of guide grooves 21 corresponding to guide rods 12 are opened at the middle of the outer side of the mold 2. The mold 2 can move up and down along the guide rods 12. The inner end of the mold 2 has no less than two sets of mold cavities 22. A set of lower pressure head 3 and upper pressure head 4 are installed in each mold cavity 22. The number and position of ejector pins 13 are opposite to the mold cavity 22. When the mold 2 moves down along the guide rods 12, the ejector pins 13 extend into the mold cavity 22 and can push the lower pressure head 3 and upper pressure head 4 in the mold cavity 22 upward. Furthermore, the lower pressure head 3 and upper pressure head 4 slide with the mold cavity 22, which is conducive to the demolding of the grinding wheel.

[0019] Please see Figure 4 This utility model provides a ceramic bond CBN grinding wheel tooling mold. A set of vertical rods 31 are fixedly connected to the middle of the top surface of the lower pressure head 3. The inner end of the upper pressure head 4 is provided with a sleeve groove 41. The upper pressure head 4 is sleeved on the outside of the vertical rods 31 through the sleeve groove 41, which facilitates the cold pressing and forming of the grinding wheel.

[0020] The working principle is as follows: In use, the grinding wheel workpiece can be first placed on the outside of the vertical rod 31, and then the upper pressure head 4 can be placed on the outside of the vertical rod 31. The grinding wheel workpiece is located between the upper pressure head 4 and the lower pressure head 3. Then, the upper pressure head 4 and the lower pressure head 3 are placed into the mold cavity 22 and cold-pressed. Then, the mold 2 is placed on the upper end of the demolding fixture 1, and the guide rod 12 is stuck in the guide groove 21. By moving the mold 2 down, the top of the ejector pin 13 extends into the mold cavity 22, pushing the lower pressure head 3, the upper pressure head 4 and the grinding wheel in the mold cavity 22 upward, which facilitates the demolding of the grinding wheel.

[0021] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A ceramic bond CBN grinding wheel tooling mold characterized by: It includes a demolding fixture (1), the top of which is provided with a mold (2), and the mold (2) is connected to at least two sets of lower pressure heads (3) and upper pressure heads (4). The demolding fixture (1) includes a base plate (11), guide rods (12), ejector pins (13), threaded rods (14) and internal threaded holes (15). The base plate (11) has a set of guide rods (12) at each of its four ends. The base plate (11) has at least two sets of ejector pins (13) at the corresponding middle position. The bottom ends of the guide rods (12) and ejector pins (13) are connected to a set of threaded rods (14). The base plate (11) has internal threaded holes (15) corresponding to the threaded rods (14) at its top surface.

2. The ceramic bond CBN grinding wheel tooling mold of claim 1, wherein: The outer middle of the mold (2) is provided with a set of guide grooves (21), and the inner end of the mold (2) is provided with no less than two sets of mold cavities (22). Each mold cavity (22) is provided with a set of lower pressure head (3) and upper pressure head (4).

3. The ceramic bond CBN grinding wheel tooling mold of claim 2, wherein: The lower pressure head (3) has a set of vertical rods (31) at the middle of its top surface, and the upper pressure head (4) has a sleeve groove (41) at its inner end.

4. The ceramic bond CBN grinding wheel tooling mold of claim 3, wherein: The upper pressure head (4) is sleeved on the outside of the vertical rod (31) through the sleeve groove (41).

5. The ceramic bond CBN grinding wheel tooling mold of claim 2, wherein: The mold (2) has a cube structure, and the guide groove (21) is opposite to the guide rod (12).

6. The ceramic bond CBN grinding wheel tooling mold of claim 2, wherein: The number and position of the ejector pins (13) are relative to the mold cavity (22).

7. The ceramic bond CBN grinding wheel tooling mold of claim 2, wherein: The lower pressure head (3) is slidably fitted with the upper pressure head (4) and the mold cavity (22).

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