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CN-121992184-A - High-frequency induction heat treatment method of heat treatment positioning mechanism and shaft sleeve

CN121992184ACN 121992184 ACN121992184 ACN 121992184ACN-121992184-A

Abstract

The invention discloses a high-frequency induction heat treatment method of a heat treatment positioning mechanism and a shaft sleeve, which comprises a main body part and a connecting part arranged at the bottom of the main body part and used for being connected with a rotary driving part, the top end of the main body part is provided with a positioning groove for positioning the shaft sleeve to be processed. According to the invention, the embedded locating groove is formed at the top end of the main body part, so that one end of the shaft sleeve to be treated can be directly embedded into the embedded locating groove, the outer wall part of the shaft sleeve is matched with the embedded locating groove to be located and fixed, and the structure of the inner hole of the shaft sleeve can be disregarded, and no matter whether the inner hole of the shaft sleeve is regular round or irregular, the outer diameter of the shaft sleeve is matched with the inner hole diameter of the embedded locating groove, the heat treatment locating mechanism can be used for locating the shaft sleeve, so that the universal adaptability of the heat treatment locating mechanism is improved.

Inventors

  • CHEN JINXIANG
  • CHEN HAO
  • TANG YAJUN

Assignees

  • 福建龙溪轴承(集团)股份有限公司

Dates

Publication Date
20260508
Application Date
20241101

Claims (10)

  1. 1. A heat treatment positioning mechanism is characterized by comprising a main body part (11) and a connecting part (12) arranged at the bottom of the main body part (11) and used for being connected with a rotary driving part, wherein a embedding positioning groove (111) used for positioning a shaft sleeve (2) to be treated is formed at the top end of the main body part (11).
  2. 2. The heat treatment positioning mechanism according to claim 1, wherein the embedded positioning groove (111) is internally provided with an inner groove (112), and the inner groove (112) is configured to be matched with the surface of the shaft sleeve (2) to form a closed cavity structure when one end of the shaft sleeve (2) is adaptively embedded into the embedded positioning groove (111).
  3. 3. The heat treatment positioning mechanism according to claim 2, wherein the inner groove (112) is formed in an inner peripheral wall of the fitting positioning groove (111).
  4. 4. The heat treatment positioning mechanism according to claim 3, wherein the inner groove (112) is formed in a position near the bottom of the inner peripheral wall of the fitting positioning groove (111).
  5. 5. The heat treatment positioning mechanism according to claim 2, wherein the inner groove (112) is an annular groove structure formed in an inner peripheral wall of the embedded positioning groove (111).
  6. 6. The heat treatment positioning mechanism according to claim 1, wherein the main body (11) is provided with an axial duct (113) communicating with the positioning groove (111), and a drain hole (114) communicating with the axial duct (113) is provided on the peripheral side of the main body (11).
  7. 7. The heat treatment positioning mechanism according to claim 1, wherein the inner aperture of the embedded positioning groove (111) is matched with the outer diameter of the shaft sleeve (2).
  8. 8. The heat treatment positioning mechanism according to claim 1, wherein the ratio of the depth of the embedded positioning groove (111) to the height of the shaft sleeve (2) to be treated is 1:3-1:15; Preferably, the ratio of the depth of the embedded positioning groove (111) to the height of the shaft sleeve (2) to be treated is 1:5-1:10.
  9. 9. A high-frequency induction heat treatment method of a shaft sleeve is characterized by comprising the following steps: S1, providing a high-frequency induction heat treatment mechanism and a heat treatment positioning mechanism (1) according to any one of claims 1 to 7, wherein one end of a shaft sleeve (2) to be treated is adapted to be embedded into an embedded positioning groove (111) at the top end of a main body part (11) so as to position the shaft sleeve (2) by the heat treatment positioning mechanism; S2, the shaft sleeve (2) is driven by the heat treatment positioning mechanism to rotate, and the high-frequency induction heat treatment mechanism is utilized to perform high-frequency induction heat treatment on the shaft sleeve (2) positioned on the heat treatment positioning mechanism (1); s3, after the induction heating treatment is completed, water spray cooling is carried out on the outer peripheral wall part of the shaft sleeve (2) through a lateral water sprayer on the high-frequency induction heating treatment mechanism so as to form quenching treatment or tempering treatment.
  10. 10. The method for high-frequency induction heat treatment of a bushing according to claim 9, wherein the treatment temperature at the time of quenching is 800-1000 ℃ and the treatment temperature at the time of tempering is 500-600 ℃.

Description

High-frequency induction heat treatment method of heat treatment positioning mechanism and shaft sleeve Technical Field The invention relates to the technical field of bearings, in particular to a high-frequency induction heat treatment method of a heat treatment positioning mechanism and a shaft sleeve. Background In the existing bearing production process, a positioning mechanism is used for positioning a shaft sleeve to be processed, a driving part connected with the positioning mechanism is used for driving the positioning mechanism to rotate so as to drive the shaft sleeve to synchronously rotate, meanwhile, a high-frequency induction heat treatment mechanism is used for carrying out high-frequency induction heating treatment and cooling treatment on the shaft sleeve so as to form quenching treatment or tempering treatment, the existing positioning mechanism is used for positioning an inner hole of the shaft sleeve, but the existing positioning mechanism is often used for positioning the inner hole of the shaft sleeve, has a regular circular hole structure and an irregular hole (non-circular) structure, so that the existing conventional positioning mechanism is difficult to adapt to the positioning requirement of the shaft sleeve with the irregular inner hole structure, and the general adaptability of the existing positioning mechanism is poor and needs to be further improved. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a heat treatment positioning mechanism, which mainly solves the technical problems that the conventional positioning mechanism is difficult to adapt to the positioning requirement of a shaft sleeve with a special-shaped inner hole structure and the general adaptability is poor. In order to achieve the above purpose, the invention is realized by the following technical scheme: A heat treatment positioning mechanism comprises a main body part and a connecting part arranged at the bottom of the main body part and used for being connected with a rotary driving part, wherein a positioning groove for positioning a shaft sleeve to be treated is formed in the top end of the main body part. Further, the interior of the embedded positioning groove is provided with an inner groove, and the inner groove is configured to be matched with the surface of the shaft sleeve to form a closed cavity structure when one end of the shaft sleeve is adaptively embedded into the embedded positioning groove. Further, the inner groove is formed in the inner peripheral wall of the embedded positioning groove. Further, the inner groove is formed in the position, close to the bottom, of the inner peripheral wall of the embedded positioning groove. Further, the inner groove is an annular groove structure arranged on the inner peripheral wall of the embedded positioning groove. Further, an axial duct communicated with the embedded positioning groove is formed in the main body, and a drain hole communicated with the axial duct is formed in the peripheral side of the main body. Further, the inner aperture of the embedded positioning groove is matched with the outer diameter of the shaft sleeve. Further, the ratio of the depth of the embedded positioning groove to the height of the shaft sleeve to be treated is 1:3-1:15; further, the ratio of the depth of the embedded positioning groove to the height of the shaft sleeve to be treated is 1:5-1:10. Based on the same inventive concept, the invention also provides a high-frequency induction heat treatment method of the shaft sleeve, which comprises the following steps: S1, providing a high-frequency induction heat treatment mechanism and the heat treatment positioning mechanism, wherein one end of a shaft sleeve to be treated is adaptively embedded into an embedded positioning groove at the top end of a main body part so as to position the shaft sleeve by using the heat treatment positioning mechanism; S2, the shaft sleeve is driven by the heat treatment positioning mechanism to rotate, and the high-frequency induction heat treatment mechanism is utilized to perform high-frequency induction heating treatment on the shaft sleeve positioned on the heat treatment positioning mechanism; And S3, after the induction heating treatment is finished, spraying water to cool the outer peripheral wall part of the shaft sleeve through a lateral water sprayer on the high-frequency induction heating treatment mechanism to form quenching treatment or tempering treatment. Further, the treatment temperature during quenching treatment is 800-1000 ℃, and the treatment temperature during tempering treatment is 500-600 ℃. The technical scheme has the following advantages or beneficial effects: According to the heat treatment positioning mechanism and the high-frequency induction heat treatment method for the shaft sleeve, the embedded positioning groove is formed in the top end of the main body part, so that one end of the shaft sleeve to be treated can be