Machining tool for preventing deformation of thin-wall bearing

Abstract

The utility model discloses a processing tool for preventing deformation of a thin-wall bearing, which comprises an outer die and an inner die, the outer die is sleeved outside the inner die, the outer die is provided with a plurality of sub-outer die bodies in a split manner, the upper edge and the lower edge of each sub-outer die body are respectively provided with a positioning flange, a middle die is arranged between adjacent sub-outer die bodies, and the middle die is connected with the outer die body. The middle die comprises a positioning part used for abutting against the positioning flange and a protruding part used for forming a cutting mark on the bearing ring matching body, a plurality of pressing blocks are further arranged between the adjacent outer sub-die bodies in a clamped mode, and the pressing blocks abut against the outer wall of the middle die. The structure is simple and reasonable, use is reliable, adaptability is high, use requirements are met, and the percent of pass of products is effectively increased.

Description

Technical Field

[0001] The utility model relates to a processing tool for preventing a thin-wall bearing from deforming. Background Art

[0002] Thin-walled bearings are characterized by relatively thin wall thickness and are usually used in applications that require high precision and low friction. At the same time, due to the thin inner and outer rings of thin-walled bearings, they have lower rigidity and higher flexibility when bearing loads, and are widely used in aerospace, precision instruments, high-speed motors, dental equipment, robotics and other fields. However, due to the small wall thickness of the product, the ring will undergo a large deformation during the lathe processing and heat treatment process, resulting in greater difficulty in product processing during the later grinding and assembly process, low processing efficiency and low pass rate. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a processing tooling for preventing thin-walled bearings from deforming. The tooling has a simple and reasonable structure, is reliable to use, has strong adaptability, meets use requirements, and effectively improves the qualified rate of products.

[0004] To achieve the above-mentioned purpose, the utility model provides a processing tool for preventing thin-walled bearings from deforming, including an outer mold and an inner mold, the outer mold is sleeved outside the inner mold, the outer mold is split and formed with a plurality of sub-outer mold bodies, the upper edges and lower edges of the sub-outer mold bodies are respectively provided with positioning flanges, an intermediate mold is arranged between adjacent sub-outer mold bodies, the intermediate mold includes a positioning portion for abutting against the positioning flange and a raised portion for forming a cut on the bearing ring mate, and a plurality of pressure blocks are sandwiched between adjacent sub-outer mold bodies, the pressure blocks abut against the outer wall of the intermediate mold.

[0005] The beneficial effects of such an arrangement are as follows: such an arrangement can increase the rigidity of the product in the form of a connected body, can effectively reduce deformation during heat treatment, and due to the reduction in product deformation, the dimensional change caused by deformation during the grinding process can be effectively improved, thereby improving the product processing qualification rate, and the outer mold is split into multiple sub-outer mold bodies, which can better adapt to the continuous processing requirements of different quantities and has good adaptability. At the same time, a stress groove can be formed at the dividing position through the intermediate mold, which is convenient for cutting and improves the subsequent production and processing efficiency. At the same time, the structure is simple and the combined operation is convenient.

[0006] As a further configuration of the utility model, a socket is provided on the middle mold, the socket is arranged corresponding to the position of the protrusion, the socket is arranged in a linear shape, a plug is matched in the socket, the end of the plug is exposed outside the socket, and a gap is formed between the pressure blocks for exposing the plug.

[0007] The beneficial effects of such a setting are as follows: By setting it in this way, when the forming is about to be completed, the insert can be pressed to make the insert sink into the socket, so as to form a cut for subsequent cutting on the blank, making the cutting more convenient. At the same time, the operation is simple, effectively improving the subsequent cutting efficiency and having a good use effect.

[0008] As a further setting of the present utility model, the inner mold is separately provided to form a plurality of sub-inner mold bodies. The number of the sub-inner mold bodies is the same as that of the sub-outer mold bodies, and the adjacent sub-inner mold bodies are clamped and matched with each other.

[0009] The beneficial effects of such a setting are as follows: By setting it in this way, it can better adapt to the continuous processing requirements of different quantities, has good adaptability and a good use effect.

[0010] As a further setting of the present utility model, one end face of the sub-inner mold body is provided with an insertion rod, and the other end is provided with an arc-shaped groove. A connecting flange is formed along the circumferential direction at the end of the insertion rod. Baffle edges for restricting the connecting flange from disengaging from the arc-shaped groove are formed on both sides of the arc-shaped groove, and a running gap for the insertion rod to pass through is formed between the baffle edges.

[0011] The beneficial effects of such a setting are as follows: By setting it in this way, by inserting the insertion rod into the arc-shaped groove and then rotating the arc-shaped groove, the connecting flange can be disengaged from the insertion port, realizing the connection of two sub-inner mold bodies. Preferably, anti-slip lines or fireproof pads can be added between the two sub-inner mold bodies to prevent accidental sliding and further ensure the reliability of the connection.

[0012] As a further setting of the present utility model, it further includes an upper mold and a lower mold, and the inner mold and the outer mold are clamped between the upper mold and the lower mold.

[0013] The beneficial effects of such a setting are as follows: By setting it in this way, it can better cooperate with stamping forming, has a better use effect, and at the same time has a simple structure and is easy to implement. Description of the Drawings

[0014] Figure 1 is a schematic cross-sectional structure view of an embodiment of the present utility model;

[0015] Figure 2 is an exploded structure view of the connection position of the sub-inner mold body in an embodiment of the present utility model. Detailed Embodiments

[0016] The embodiments of the processing tool for preventing the deformation of thin-walled bearings of the present utility model are as Figure 1 and Figure 2As shown: it includes an outer mold and an inner mold 2, the outer mold is sleeved outside the inner mold 2, the outer mold is divided into a plurality of sub-outer mold bodies 11, the upper and lower edges of the sub-outer mold bodies 11 are respectively provided with positioning flanges, an intermediate mold 3 is provided between adjacent sub-outer mold bodies 11, the intermediate mold 3 includes a positioning portion for abutting against the positioning flange and a convex portion for forming a cut on the bearing ring mate, and a plurality of pressing blocks 4 are sandwiched between adjacent sub-outer mold bodies 11, and the pressing blocks 4 abut against the outer wall of the intermediate mold 3. The beneficial effect of such a setting is that such a setting can increase the rigidity of the product in the form of a joint body, can effectively reduce the deformation during heat treatment, and due to the reduction of the deformation amount of the product, the dimensional change caused by the deformation during the grinding process can be effectively improved, and the qualified rate of product processing can be improved, and the outer mold is divided into a plurality of sub-outer mold bodies 11, which can better adapt to the continuous processing requirements of different quantities and has good adaptability, and at the same time, a stress groove can be formed at the split position through the intermediate mold 3, which is convenient for cutting and improves the subsequent production and processing efficiency, and at the same time, the structure is simple and the combination operation is convenient.

[0017] As a further configuration of this embodiment, a socket is provided on the middle mold 3, the socket is provided at a position corresponding to the protrusion, the socket is provided in a linear shape, a plug 31 is provided in the socket, the end of the plug 31 is exposed outside the socket, and a gap for exposing the plug 31 is formed between the pressing blocks 4. The beneficial effect of this configuration is that, when the molding is about to be completed, the plug 31 can be pressed so that the plug 31 is immersed in the socket, thereby forming an incision for subsequent cutting on the blank, making the cutting more convenient, and the operation is simple, effectively improving the efficiency of subsequent cutting, and having a good use effect.

[0018] As a further configuration of this embodiment, the inner mold 2 is divided into a plurality of sub-inner mold bodies 21, the number of the sub-inner mold bodies 21 is the same as the sub-outer mold bodies 11, and adjacent sub-inner mold bodies 21 are snap-fitted. The beneficial effect of this configuration is that it can better adapt to the continuous processing requirements of different quantities, has good adaptability, and has a good use effect.

[0019] As a further setting of this embodiment, one end face of the sub-inner mold body 21 is provided with an insertion rod 22, and the other end is provided with an arc-shaped groove 24. A connecting flange 23 is formed along the circumference at the end of the insertion rod 22. On both sides of the arc-shaped groove 24, there are formed retaining edges for restricting the connecting flange 23 from disengaging from the arc-shaped groove 24, and a running gap for the insertion rod 22 to pass through is formed between the retaining edges. The beneficial effect of such a setting is as follows: By setting it in this way, by inserting the insertion rod 22 into the arc-shaped groove 24 and then rotating the arc-shaped groove 24, the connecting flange 23 can be disengaged from the insertion opening, realizing the connection of the two sub-inner mold bodies 21. Preferably, anti-slip patterns or fireproof pads can be added between the two sub-inner mold bodies 21 to prevent accidental sliding and further ensure the reliability of the connection.

[0020] As a further setting of this embodiment, it further includes an upper mold 5 and a lower mold 6, and the inner mold 2 and the outer mold are clamped between the upper mold 5 and the lower mold 6. The beneficial effect of such a setting is as follows: By setting it in this way, it can better cooperate with stamping forming, has a better use effect, and at the same time has a simple structure and is easy to implement.

[0021] The above examples are only one of the preferred specific examples of the present invention. The common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are included in the protection scope of the present invention.

Claims

1. A processing tooling for preventing deformation of thin-walled bearings, characterized in that: It includes an outer mold and an inner mold. The outer mold is sleeved outside the inner mold. The outer mold is separately provided with a number of sub-outer mold bodies. Positioning flanges are respectively arranged on the upper edge and the lower edge of the sub-outer mold bodies. An intermediate mold is arranged between adjacent sub-outer mold bodies. The intermediate mold includes a positioning portion for abutting against the positioning flange and a protruding portion for forming a notch on the bearing ring fitting. A number of pressing blocks are also clamped between adjacent sub-outer mold bodies. The pressing blocks abut against the outer wall of the intermediate mold.

2. The processing tooling for preventing deformation of thin-walled bearings according to claim 1, wherein: A socket is arranged on the intermediate mold. The socket is arranged corresponding to the position of the protruding portion. The socket is linearly arranged. An insertion piece is fitted in the socket. The end of the insertion piece is exposed outside the socket. A gap for exposing the insertion piece is formed between the pressing blocks.

3. The processing tooling for preventing deformation of thin-walled bearings according to claim 1 or 2, characterized in that: The inner mold is separately provided to form a number of sub-inner mold bodies. The number of the sub-inner mold bodies is the same as that of the sub-outer mold bodies. Adjacent sub-inner mold bodies are in snap-fit connection.

4. The processing tooling for preventing deformation of thin-wall bearings according to claim 3, characterized in that: One end face of the sub-inner mold body is provided with an insertion rod, and an arc-shaped groove is arranged on the other end. A connecting flange is formed on the end of the insertion rod along the circumferential direction. Stop edges for restricting the connecting flange from disengaging from the arc-shaped groove are formed on both sides of the arc-shaped groove. A running gap for allowing the insertion rod to pass through is formed between the stop edges.

5. The processing tooling for preventing deformation of thin-walled bearings according to claim 2, characterized in that: It further includes an upper mold and a lower mold. The inner mold and the outer mold are clamped between the upper mold and the lower mold.

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