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CN-121977045-A - High-precision inertia ring and circumferential mass compensation forming process thereof

CN121977045ACN 121977045 ACN121977045 ACN 121977045ACN-121977045-A

Abstract

The invention relates to the technical field of inertia rings, and discloses a high-precision inertia ring and a circumferential mass compensation molding process thereof, which comprises a plurality of arc-shaped columns, wherein the arc-shaped columns are sequentially connected end to form the inertia ring with a closed annular structure, and two adjacent arc-shaped columns are fixedly connected through a welding line at the joint, a containing groove is formed at the joint, a counterweight is filled in the containing groove, and the counterweight is used for correcting uniformity of circumferential mass distribution of the inertia ring. By using the high-precision inertia ring and the circumferential mass compensation forming process thereof, the balance weight piece capable of compensating the mass deviation is filled in the accommodating groove at the spliced position, so that the precise adjustment of the circumferential mass of the inertia ring is realized, the technical problem of uneven circumferential mass distribution of the existing stamping welding forming inertia ring caused by factors such as welding process fluctuation, uneven filling of welding flux, operation difference and the like is solved from the structural aspect, and the dynamic balance precision and the operation stability of the inertia ring during high-speed rotation are remarkably improved.

Inventors

  • LI XIAOFENG
  • QIAN AIHUA
  • SUN YONG

Assignees

  • 靖江三鹏新能源科技股份有限公司

Dates

Publication Date
20260505
Application Date
20260312

Claims (10)

  1. 1. The utility model provides a high accuracy inertia ring, includes a plurality of arc cylinder (11), a plurality of arc cylinder (11) connect gradually the end to end forms the inertia ring of closed annular structure, its characterized in that, adjacent two weld joint fixed connection through concatenation department between arc cylinder (11), concatenation department is equipped with holding tank (21), the intussuseption of holding tank (21) is filled with counterweight (12), counterweight (12) are used for correcting inertia ring circumference mass distribution's homogeneity.
  2. 2. A high precision inertia ring as claimed in claim 1, characterized in that the weld comprises an inner weld (13) and an outer weld (14), the inner weld (13) being located on the inner ring of the inertia ring, the outer weld (14) being located on the outer ring of the inertia ring, the receiving groove (21) being located between the inner weld (13) and the outer weld (14).
  3. 3. A high precision inertia ring according to claim 1, characterized in that the weight (12) is fixedly connected to the inertia ring by hot pressing.
  4. 4. A high precision inertia ring according to claim 3, characterized in that a filling gap (23) is provided between the receiving groove (21) and the weight member (12).
  5. 5. The high-precision inertia ring according to claim 1, wherein the arc-shaped column body (11) comprises a plurality of sheets (111) which are stacked along the axial direction of the inertia ring, adjacent sheets (111) of the same arc-shaped column body (11) are fixed through vertical laser welding, and vertical welding beads (24) are formed on the inner ring side wall, the outer ring side wall and two end parts of the arc-shaped column body (11).
  6. 6. A process for circumferential mass compensation forming of a high-precision inertia ring, applied to the high-precision inertia ring according to any one of claims 1 to 5, comprising the steps of: S1, manufacturing the arc-shaped column body (11); s2, welding the arc-shaped cylinder (11) to form the inertia ring; S3, homogenizing adjustment of the circumferential mass of the inertia ring.
  7. 7. The circumferential mass compensation molding process of the high-precision inertia ring of claim 6, wherein S3 comprises the steps of: s31, placing the welded inertia ring on a weighing assembly (3), wherein the weighing assembly (3) is provided with a plurality of weighing sensors (32) which are in one-to-one correspondence with the accommodating grooves (21) of the inertia ring; s32, acquiring weight detection values of corresponding positions through the weighing sensors (32), and configuring a counterweight (12) corresponding to the compensation weight according to the weight detection values; s33, the weight pieces (12) configured in the S32 are arranged in the corresponding accommodating grooves (21) one by one, and the weight pieces (12) are fixed in the accommodating grooves (21) through hot pressing.
  8. 8. The process for circumferential mass compensation molding of a high precision inertia ring according to claim 7, wherein in S31, the weighing assembly (3) is leveled before the inertia ring is placed on the weighing assembly (3).
  9. 9. The circumferential mass compensation molding process of the high-precision inertia ring according to claim 7, wherein in S32, the weight m=m Is provided with -M Measuring of the weight (12), wherein M Is provided with is a mass standard preset value, and M Measuring is the weight detection value obtained in S32.
  10. 10. The process of claim 7, wherein the inertia ring is stress-relieved after S33 is completed.

Description

High-precision inertia ring and circumferential mass compensation forming process thereof Technical Field The invention relates to the technical field of inertia rings, in particular to a high-precision inertia ring and a circumferential mass compensation forming process thereof. Background The inertia ring is used as an important inertia element, is widely applied to the fields of inertial navigation, precise instruments, high-speed rotating machinery and the like, has the core functions of providing stable inertial restraint through self rotational inertia, guaranteeing dynamic stability and control precision of related equipment in the operation process, and particularly in high-precision equipment such as MEMS annular gyroscopes, small-inertia infrared stable platforms and the like, and the performance of the inertia ring directly determines the core technical index performance of the equipment. The invention discloses an inertia ring and a die stamping, welding and forming process thereof, which are disclosed in Chinese patent publication No. CN120244487B, and comprise a plurality of arc-shaped columns, wherein the arc-shaped columns are sequentially connected end to form the inertia ring with a closed annular structure, at least two connecting parts are arranged on the outer ring side wall and the inner ring side wall of each arc-shaped column, each arc-shaped column comprises a plurality of sheets which are axially overlapped along the inertia ring, the plurality of sheets of the same arc-shaped column are connected through the connecting parts, and adjacent arc-shaped columns are connected through welding and form welding seams, but are influenced by factors such as fluctuation of welding process parameters, insufficient control precision of welding filling quantity, operation difference of welding operators and the like, and the welding filling weight of the spliced parts of the adjacent arc-shaped columns inevitably has difference, so that the mass distribution of the finally formed inertia ring in the circumferential direction cannot meet the uniform requirement. Disclosure of Invention The invention aims to overcome the defects in the prior art and provides a high-precision inertia ring and a circumferential mass compensation forming process thereof, wherein the high-precision inertia ring is formed by forming a containing hole between adjacent arc-shaped columns, and fixing and filling an adjusting column for configuring weight in the containing hole, so that the mass distribution of the inertia ring in the circumferential direction is uniform. In order to achieve the above purpose, the technical scheme of the invention provides a high-precision inertia ring, which comprises a plurality of arc-shaped columns, wherein the arc-shaped columns are sequentially connected end to form the inertia ring with a closed annular structure, two adjacent arc-shaped columns are fixedly connected through a welding seam at a splicing position, an accommodating groove is formed at the splicing position, a weight part is filled in the accommodating groove, and the weight part is used for correcting the uniformity of circumferential mass distribution of the inertia ring. Preferably, the weld joint includes an inner weld joint and an outer weld joint, the inner weld joint is located at an inner ring of the inertia ring, the outer weld joint is located at an outer ring of the inertia ring, and the receiving groove is located between the inner weld joint and the outer weld joint. By the design, the welding heat affected zone cannot affect the shape and the size of the accommodating groove, so that the weight piece can be normally installed in the accommodating groove. Preferably, the weight is fixedly connected with the inertia ring through hot pressing. The design is beneficial to improving the stability and the firmness of the connection of the weight piece and the inertia ring. Preferably, a filling gap is provided between the receiving groove and the weight. With such a design, the filling gap can provide a receiving space for the end of the weight flowing during hot pressing. Preferably, the arc cylinder comprises a plurality of sheets which are arranged in a stacked manner along the axial direction of the inertia ring, the adjacent sheets of the same arc cylinder are fixed through vertical laser welding, and the inner ring side wall, the outer ring side wall and the two ends of the arc cylinder are all formed into vertical welding beads through vertical laser welding. Such a design is advantageous for improving the strength of the connection between the sheets and for compactness. A circumferential mass compensation molding process of a high-precision inertia ring comprises the following steps: S1, manufacturing the arc-shaped column body; S2, welding the arc-shaped cylinder to form the inertia ring; S3, homogenizing adjustment of the circumferential mass of the inertia ring. Preferably, S3 comprises the steps o