CN-121976677-A - Eccentric correction method for embedded part connecting hole and embedded part

Abstract

The invention discloses an embedded part connecting hole eccentricity correction method and an embedded part, wherein the embedded part connecting hole eccentricity correction method comprises the following steps of 1, hoisting a corresponding fitting onto an embedded part according to a preset position, and marking the embedded part according to the position of a butt joint hole when the butt joint hole on the corresponding fitting is eccentric with the connecting hole on the embedded part; and 2, drilling a mark on the embedded part to obtain a correction hole, namely finishing eccentric correction of the connecting hole on the embedded part. The technical scheme has the beneficial effects that under the condition that the embedded part is assembled, the connecting hole on the embedded part can be conveniently corrected, and the obtained corrected hole can replace the connecting hole to carry out butt joint operation with the butt joint hole on the corresponding part.

Inventors

• WU LIN
• ZHOU ZHIHUI
• ZHENG JIWU
• HUANG FAN
• ZHOU RONGTIAN
• FENG WEIFENG
• XIE JING
• ZHOU HUI
• TAO ZEXU
• HE XUEBIN
• LIU XIAO

Assignees

• 武汉重型机床集团有限公司

Dates

Publication Date

20260505

Application Date

20260317

Claims (10)

1. 1. The method for correcting the eccentricity of the connecting hole of the embedded part is characterized by comprising the following steps: Hoisting a corresponding fitting (2) onto an embedded part (1) according to a preset position, and marking the embedded part (1) according to the position of a butt joint hole (21) when the butt joint hole (21) on the corresponding fitting (2) and a connecting hole (11) on the embedded part (1) are eccentric; And 2, drilling a mark on the embedded part (1) to obtain a correction hole (12), namely finishing eccentric correction of the connecting hole (11) on the embedded part (1).
2. 2. The method for correcting the eccentricity of the connecting hole of the embedded part according to claim 1, wherein the embedded part (1) can be marked by a mark pen or paint.
3. 3. The method for correcting the eccentricity of a connecting hole of an embedded part according to claim 2, wherein the pigment is red lead powder, inkpad or streak blue oil.
4. 4. The method for correcting the eccentric center of the connecting hole of the embedded part according to claim 1, wherein the magnetic drill (3) is adopted for drilling when the embedded part (1) is drilled, and the magnetic drill (3) is magnetically attracted on the embedded part (1) when the magnetic drill is used for drilling.
5. 5. The method for correcting the eccentric center of the connecting hole of the embedded part according to claim 4, wherein a guide ring (4) is welded on the embedded part (1) during drilling, an inner hole of the guide ring (4) is aligned with the mark, the guide ring (4) is used for limiting a drill bit of the magnetic drill (3), and the guide ring (4) is cut after the correction hole (12) is drilled.
6. 6. The method for correcting the eccentricity of the connecting hole of the embedded part according to claim 5, wherein the guide ring (4) is spot-welded on the embedded part (1), and the guide ring (4) is provided with a plurality of welding spots distributed at intervals in the circumferential direction.
7. 7. The method for correcting the eccentric center of the connecting hole of the embedded part according to claim 5, wherein the guide ring (4) is made of Q235 or Q345 steel.
8. 8. The method for correcting the eccentric center of the connecting hole of the embedded part according to claim 5, wherein the aperture of the inner hole of the guide ring (4) is larger than the aperture of the correction hole (12).
9. 9. The method for correcting the eccentricity of the connecting hole of the embedded part according to any one of claims 1 to 8, wherein when the plurality of connecting holes (11) on the embedded part (1) are eccentric, a plurality of magnetic drills (3) are adopted to drill a plurality of correction holes (12) simultaneously.
10. 10. An embedded part, characterized in that the method for eccentric correction of the connecting hole of the embedded part is adopted according to any one of claims 1-9.

Description

Eccentric correction method for embedded part connecting hole and embedded part Technical Field The invention belongs to the technical field of embedded part deviation correction, and particularly relates to an embedded part connecting hole eccentric correction method and an embedded part. Background In large-scale equipment foundation and platform installation engineering, a large-scale steel base platform (embedded part of a steel structure) and upper parts (such as an equipment base, a beam and the like) are usually connected through a large number of bolts. Due to accumulated errors in design, manufacturing, transportation and installation links, the condition that the connecting hole on the embedded part and the butt joint hole on the corresponding part are eccentric (usually offset by 5-8 mm) often occurs. Such embedments typically have the following characteristics: 1. the plane size is usually more than 2m multiplied by 2m, and the weight can reach several tons to tens tons; 2. the foundation bolts are firmly arranged in the concrete foundation pit; 3. The method is immovable, the disassembly and factory return adjustment cost is extremely high, the period is long, and the on-site correction is the only feasible scheme; 4. The number of the hole sites is tens to hundreds of connecting holes, and the holes are uniformly distributed in a matrix. The conventional field correction method has the following problems: 1. Gas cutting reaming, namely, poor precision, large heat affected zone and damage to the performance of the base metal; 2. manual grinding, namely, the efficiency is low, and the hole shape is irregular; 3. Reaming by direct magnetic drilling, namely, lacking of a correct standard and easy secondary deviation; 4. the special drilling jig has high manufacturing cost, complex installation and poor adaptability. Therefore, a field correction method with simple operation, accurate positioning, low cost and high efficiency is needed. Disclosure of Invention In order to solve the technical problems, the technical scheme of the invention is as follows, and the method for correcting the eccentricity of the connecting hole of the embedded part comprises the following steps: step 1, hoisting a corresponding fitting onto an embedded part according to a preset position, and marking the embedded part according to the position of a butt joint hole when the butt joint hole on the corresponding fitting is eccentric with a connecting hole on the embedded part; And 2, drilling a mark on the embedded part to obtain a correction hole, namely finishing eccentric correction of the connecting hole on the embedded part. The technical scheme has the beneficial effects that under the condition that the embedded part is assembled, the connecting hole on the embedded part can be conveniently corrected, and the obtained corrected hole can replace the connecting hole to carry out butt joint operation with the butt joint hole on the corresponding part. Based on the technical scheme, the invention can be further improved as follows: further, mark can be made on the embedded part by using a Mark pen or paint pigment. The technical scheme has the beneficial effects that the drilling position of the correction hole can be marked conveniently, meanwhile, the correction hole is not easy to disappear, and the drilling precision of the correction hole can be improved. Further, the pigment is red lead powder, inkpad or streak blue oil. The further technical scheme has the beneficial effect that the color is bright. Further, when the embedded part is drilled, a magnetic drill is adopted for drilling operation, and when the magnetic drill is used for drilling operation, the magnetic drill is magnetically attracted on the embedded part. The technical scheme has the beneficial effect that the drilling precision is high. Further, when the embedded part is drilled, a guide ring is welded on the embedded part, an inner hole of the guide ring is aligned with the mark, the guide ring is used for limiting a drill bit of the magnetic drill, and the guide ring is cut after the correction hole is drilled. The technical scheme has the beneficial effects that when the drill bit of the magnetic drill is drilled into the embedded part, the guide ring can conduct guide operation so as to avoid bit shifting of the magnetic drill. Further, the guide ring is spot-welded on the embedded part, and the guide ring is provided with a plurality of welding spots distributed at intervals in the circumferential direction. The technical scheme has the beneficial effects that the guide ring is convenient to operate when being welded on the embedded part, and the guide ring is not welded firmly, so that the guide ring is prevented from being difficult to cut off from the embedded part in the later period. Further, the guide ring is made of Q235 or Q345 steel. The further technical scheme has the beneficial effects of high strength and good wear resistance. Furth