CN210412694U

CN210412694U - Device for preventing inner hole of thin-wall pipe from processing deformation

Info

Publication number: CN210412694U
Application number: CN201920997298.6U
Authority: CN
Inventors: 程文领; 张亮; 任卫忠; 许婷婷; 于瑞生; 聂向阳; 杜丽娟
Original assignee: Henan Zhongyuan Special Steel Equipment Manufacturing Co Ltd
Current assignee: Henan Zhongyuan Special Steel Equipment Manufacturing Co Ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-04-28
Anticipated expiration: 2029-06-28

Abstract

The utility model relates to a device for precisely processing the inner hole of a thin-wall piece and preventing the inner hole of the thin-wall tube from processing deformation, which comprises an upper half clamp and a lower half clamp corresponding to the upper half clamp, wherein the upper half clamp and the lower half clamp are wrapped outside the thin-wall tube to be processed and are in inosculation contact with the contour of the contact surface of the thin-wall tube to be processed; the both ends of first clamp and the both ends of second clamp are all connected together fixedly, and the both ends of first clamp and the both ends of second clamp are equallyd divide and do not have fastening ear, are connected with fastening bolt between the fastening ear of first clamp and second clamp the utility model discloses simple structure, loading and unloading are convenient, low cost, and processingquality is good, and the effect is ideal.

Description

Device for preventing inner hole of thin-wall pipe from processing deformation

Technical Field

The utility model belongs to the technical field of deep hole bores boring machine hole processing, especially, relate to a carry out the device that prevents thin-walled tube hole processing deformation of precision finishing to thin-walled piece hole.

Background

At present, when a workpiece (the wall thickness is more than 40mm) with the inner hole diameter of 500-800 mm and the dimensional tolerance (+ 0.15/0) is machined, the dimensional tolerance is generally controlled by adopting the machining modes of rough boring, lock boring and floating boring of a deep hole drilling and boring machine, namely, the dimensional tolerance is controlled by reducing the abrasion of a cutter through controlling the cutting depth, the rotating speed, the cooling speed and the like, and the workpiece is machined on the deep hole drilling and boring machine. When a workpiece (the wall thickness is more than 40mm) with the inner hole diameter phi of 500-phi 800mm and the dimensional tolerance (+ 0.15/0) is machined, the strength of the workpiece is high, the influence of cutting force on the deformation of the workpiece is small, and the control of the size of the inner hole is basically not influenced. However, when a thin-walled part with the inner hole diameter of phi 500-phi 800mm, the wall thickness of 15-20mm and the dimensional tolerance (+ 0.15/0) is machined on a deep hole drilling and boring machine, the workpiece is deformed in the machining process due to low strength of the workpiece and large equipment cutting force of the deep hole drilling and boring machine, so that the control of the dimensional tolerance of the inner hole is influenced, and the machined product has the quality problems of ellipse of the inner hole, over-poor dimension, over-poor straightness and the like.

Disclosure of Invention

The utility model aims at overcoming the deficiency that exists among the prior art and providing a realize that hole diameter phi 500-phi 800mm, wall thickness 15-20mm, the thin wall spare processing of dimensional tolerance (+ 0.15/0), eliminate the hole oval, the device that prevents thin wall pipe hole processing deformation of quality problems such as size discrepancy, straightness accuracy discrepancy, utilize the processing hole diameter phi 500-phi 800mm of former deep hole boring and drilling machine, the work piece (the wall thickness is greater than 40mm) processing mode of dimensional tolerance (+ 0.15/0), through the deformation of control work piece, solved the thin wall spare hole oval of deep hole boring and drilling machine processing hole diameter phi 500-phi 800mm, wall thickness 15-20mm, dimensional tolerance (+ 0.15/0), quality problems such as size discrepancy, straightness accuracy discrepancy, improve the quality assurance ability of product processing.

The purpose of the utility model is realized like this: a device for preventing the inner hole of a thin-walled tube from machining deformation comprises an upper half clamp and a lower half clamp corresponding to the upper half clamp, wherein the upper half clamp and the lower half clamp are wrapped outside the thin-walled tube to be machined and are in matched contact with the contour of the contact surface of the thin-walled tube to be machined; both ends of the upper half hoop and both ends of the lower half hoop are fixedly connected together.

The two ends of the upper half hoop and the two ends of the lower half hoop are respectively provided with a fastening lug, and a fastening bolt is connected between the fastening lugs of the upper half hoop and the lower half hoop.

The two ends of the upper half hoop and the two ends of the lower half hoop are respectively provided with a fastening lug, and the fastening lugs of the upper half hoop and the lower half hoop are fixed together in a welding mode.

The two ends of the upper half hoop and the two ends of the lower half hoop can also be directly welded and fixed together without fastening lugs.

The fastening lugs are welded and fixed on two ends of the upper half hoop and the lower half hoop in a welding mode.

The upper half hoop is arranged on the upper semicircle of the thin-walled pipe, the lower half hoop is arranged on the lower semicircle of the thin-walled pipe, the upper half hoop and the lower half hoop form a circular inner hole matched with the excircle of the thin-walled pipe, and the gap between the upper half hoop and the lower half hoop is 1 mm.

The number of the devices for preventing the machining deformation of the inner hole of the thin-walled tube is set according to the actual machining length of the thin-walled tube, and one device for preventing the machining deformation of the inner hole of the thin-walled tube is installed every 1m of the thin-walled tube.

The utility model adopts the above technical scheme after will reach following effect:

the thin-wall part with the inner hole diameter phi of 500-phi 800mm, the wall thickness of 15-20mm and the dimensional tolerance (+ 0.15/0) is machined by mounting the device on the outer circle of a product, and the dimensional tolerance meets the requirements of users. The device for preventing the inner hole of the thin-wall pipe from deforming during machining can effectively control the deformation problem of the deep hole drilling and boring machine during machining of the inner hole, is simple and practical, solves the quality problems of ovality, size out-of-tolerance, straightness out-of-tolerance and the like of the inner hole, improves the quality assurance capability of product machining, can be repeatedly used in batch production, saves cost, and is very suitable for batch production of the products.

The utility model discloses simple structure, loading and unloading are convenient, low cost, and processingquality is good, and the effect ideal.

Drawings

FIG. 1 is an assembly and machining schematic diagram of a device for preventing machining deformation of an inner hole of a thin-wall pipe.

FIG. 2 is an assembled side view of the device for preventing the inner hole of the thin-wall pipe from machining deformation.

Detailed Description

Example 1: as shown in fig. 1 and 2, the device mainly comprises an upper half hoop 1, a lower half hoop 2, a fastening lug 3 (4 pieces) and a fastening bolt 4 (2 pieces). Prevent thin wall pipe hole processing deformation's device, including first clamp 1, second clamp 2, fastening ear 3 (4), fastening bolt 4 (2), the fastening ear passes through the welding mode and welds on first clamp and second clamp, and first clamp is installed at the last semicircle of product, and second clamp is installed at the second semicircle of product, and first clamp passes through bolted connection fastening with second clamp. In order to make the anti-deformation effect good, the upper half clamp and the lower half clamp are designed into inner holes matched with the excircle of a product, and the diameter clearance is 1 mm. The fastening lugs need to be consistent in size during machining, and position and size are well controlled when the fastening lugs are welded to the upper half hoop and the lower half hoop, so that fastening bolts can smoothly penetrate through the fastening lugs. The number of the devices for preventing the machining deformation of the inner hole of the thin-wall pipe is determined according to the actual machining length of the product, and one device for preventing the machining deformation of the inner hole of the thin-wall pipe is arranged every 1m, so that the best effect of preventing the machining deformation of the inner hole of the thin-wall pipe is achieved.

Example 2: as shown in fig. 1 and 2, the device for preventing the machining deformation of the inner hole of the thin-walled tube comprises an upper half clamp 1 and a lower half clamp 2 corresponding to the upper half clamp 1, wherein the upper half clamp 1 and the lower half clamp 2 are wrapped outside the thin-walled tube to be machined and are in matched contact with the contour of the contact surface of the thin-walled tube to be machined; both ends of the upper half hoop 1 and both ends of the lower half hoop 2 are fixedly connected together.

The two ends of the upper half hoop 1 and the two ends of the lower half hoop 2 are respectively provided with a fastening lug 3, and a fastening bolt 4 is connected between the fastening lugs 3 of the upper half hoop 1 and the lower half hoop 2. The fastening ears 3 are welded and fixed on the two ends of the upper half hoop 1 and the lower half hoop 2 in a welding mode.

The upper half hoop 1 is installed on the upper semicircle of the thin-walled pipe, the lower half hoop 2 is installed on the lower semicircle of the thin-walled pipe, the upper half hoop 1 and the lower half hoop 2 form a circular inner hole matched with the excircle of the thin-walled pipe, and the gap between the upper half hoop and the lower half hoop is 1 mm.

Example 3: as shown in fig. 1 and 2, the device for preventing the machining deformation of the inner hole of the thin-walled tube comprises an upper half clamp 1 and a lower half clamp 2 corresponding to the upper half clamp 1, wherein the upper half clamp 1 and the lower half clamp 2 are wrapped outside the thin-walled tube to be machined and are in matched contact with the contour of the contact surface of the thin-walled tube to be machined; both ends of the upper half hoop 1 and both ends of the lower half hoop 2 are fixedly connected together.

The two ends of the upper half hoop 1 and the two ends of the lower half hoop 2 are respectively provided with a fastening lug 3, and the fastening lugs 3 of the upper half hoop 1 and the lower half hoop 2 are fixed together in a welding mode. The fastening ears 3 are welded and fixed on the two ends of the upper half hoop 1 and the lower half hoop 2 in a welding mode.

Example 4: as shown in fig. 1 and 2, the device for preventing the machining deformation of the inner hole of the thin-walled tube comprises an upper half clamp 1 and a lower half clamp 2 corresponding to the upper half clamp 1, wherein the upper half clamp 1 and the lower half clamp 2 are wrapped outside the thin-walled tube to be machined and are in matched contact with the contour of the contact surface of the thin-walled tube to be machined; both ends of first clamp 1 and the both ends of second clamp 2 are all connected together fixedly, specifically are that the both ends of first clamp 1 and the both ends direct welded fastening of second clamp 2 are in the same place.

Claims

1. The utility model provides a prevent thin wall pipe hole processing deformation's device, includes first clamp (1), with first clamp (1) corresponding second clamp (2), its characterized in that: the upper half clamp (1) and the lower half clamp (2) are wrapped outside the processed thin-walled tube and are in matched contact with the profile of the contact surface of the processed thin-walled tube; the two ends of the upper half hoop (1) and the two ends of the lower half hoop (2) are fixedly connected together.

2. The apparatus for preventing deformation of thin-walled tube during machining process according to claim 1, wherein: the two ends of the upper half hoop (1) and the two ends of the lower half hoop (2) are respectively provided with a fastening lug (3), and a fastening bolt (4) is connected between the fastening lugs (3) of the upper half hoop (1) and the lower half hoop (2).

3. The apparatus for preventing deformation of thin-walled tube during machining process according to claim 1, wherein: the two ends of the upper half hoop (1) and the two ends of the lower half hoop (2) are respectively provided with a fastening lug (3), and the fastening lugs (3) of the upper half hoop (1) and the lower half hoop (2) are fixed together in a welding mode.

4. The device for preventing the inner hole of the thin-wall pipe from being processed and deformed as claimed in claim 1, wherein: two ends of the upper half hoop (1) and two ends of the lower half hoop (2) are directly welded and fixed together.

5. A device for preventing deformation of an inner hole of a thin-walled tube according to claim 2 or 3, wherein: the fastening lugs (3) are welded and fixed on the two ends of the upper half hoop (1) and the lower half hoop (2) in a welding mode.

6. The apparatus for preventing deformation of thin-walled tube during machining process according to claim 1, wherein: the upper half hoop (1) is installed on the upper semicircle of the thin-walled pipe, the lower half hoop (2) is installed on the lower semicircle of the thin-walled pipe, the upper half hoop (1) and the lower half hoop (2) form a circular inner hole matched with the excircle of the thin-walled pipe, and the gap between the upper half hoop and the lower half hoop is 1 mm.

7. The apparatus for preventing deformation of thin-walled tube during machining process according to claim 1, wherein: the number of the devices for preventing the machining deformation of the inner hole of the thin-walled tube is set according to the actual machining length of the thin-walled tube, and one device for preventing the machining deformation of the inner hole of the thin-walled tube is installed every 1m of the thin-walled tube.