CN103990841A - Method for milling end surface of large-cross-section steel component - Google Patents

Abstract

The invention relates to a method for milling an end surface of a large-cross-section steel component. The method comprises the following steps: (1) calibrating a manufactured large-cross-section steel component to ensure that each size of the component is within an allowable deviation range; (2) scribing an end milling line and an end milling observation line; (3) primarily adjusting the longitudinal direction and the transverse direction of the placement position of the large-cross-section steel component; (4) performing fine adjustment on the consistency of an end milling cutter running track and the end milling line of the large-cross-section steel component; (5) fixing the large-cross-section steel component; (6) performing end milling. The method for milling the end surface of the large-cross-section steel component disclosed by the invention is easy to operate; the error of the end milling line is effectively reduced by precise calibration; the end surface milling precision and the end surface milling efficiency are greatly improved by the methods of precisely scribing the end milling line and the end milling observation line, performing fine adjustment on a clamping tool fixing component of the component, performing component end milling track tracking by a machine scribing needle frame and the like, and the cost is reduced greatly.

Description

Heavy in section steel member end facing cut processing method

Technical field

The invention belongs to steel member end facing cut field, especially a kind of heavy in section steel member end facing cut processing method.

Background technology

Make in processing at the seamless steel structure member that holds out against connection, for ensureing that member end face fully contacts, power transmission is reliable, and regulation and stipulation adopts the processing method of facing cut to carry out the end face processing of member.Locate to determine perpendicular to central axis after end mill line at larger for general employing of heavy in section steel member end facing cut processing, the cantilevered frock secured adjusted that the adjusting of moving with crane cooperation crowbar or producer manufacture, then end mill(ing) cutter zero load is observed the method for carrying out facing cut processing after the repeatability of adjustable side milling head track and end mill line along the operation of end mill face, there is following problem and shortcoming in the method: 1, by larger perpendicular to the definite end mill line error of central axis, and cannot check in the time of practical application; 2, crane coordinates and adds crowbar and move to regulate that fixed component efficiency is low, poor accuracy; 3, the general cantilever of cantilevered frock that producer manufactures is shorter, cannot meet the fixing needs of heavy in section member; 4, during because of end mill, the existence of milling bits causes the observation of end mill(ing) cutter running orbit and end mill line repeatability unintelligible.Due to the existence of above problem, make the method can only be applicable to the not high steel member end facing cut processing of common required precision, and along with increasing deviation, cross section also increases, when reluctantly for the high member of required precision, not to drop into a large amount of time and repeatedly check adjusting for meeting required precision by occurring, occur because not meeting installation needs that when mounted secondary operations causes the problems such as cost waste and inefficiency exactly.

Summary of the invention

The object of the invention is to overcome the deficiencies in the prior art, a kind of heavy in section steel member end facing cut processing method is provided, the method is simple to operate, effectively reduce end mill line error by precise calibration, finely tune by accurately drawing end mill line and end mill observation line, member clamping tool fixed component, machine scriber frame carries out the methods such as member end mill track following and greatly improved precision and the efficiency of facing cut processing, effectively reduce costs.

The present invention solves its technical problem and is achieved through the following technical solutions:

A kind of heavy in section steel member end facing cut processing method, is characterized in that: the method step is:

(1), first the heavy in section steel member of making is proofreaied and correct, ensure that the each size of member is within the scope of tolerance;

(2), draw end mill line and end mill observation line: on wide of heavy in section steel member, adopt right angle to hook a burst method and draw end mill line and end mill observation line;

(3), the longitudinal and horizontal initial adjustment of heavy in section steel member placement location: by heavy in section steel lifting component on the supporting plane benchmark tire of the frock that is fixedly clamped, when placement, its end mill line and end mill observation line ensure that end mill position, in the stroke range of end mill(ing) cutter, completes the preliminary adjusting of heavy in section steel member lengthwise position upward and in the vertical; The level that simultaneously heavy in section steel member one side is close proximity to frock holds out against benchmark bearing, and regulate hydraulic pressure holding device and the leading screw micromatic setting of steel member both sides, heavy in section by cooperation, make visual end mill line position consistent with end mill(ing) cutter track, the lateral attitude that completes member tentatively regulates;

(4), the uniformity of heavy in section steel member end milling cutter running orbit and end mill line fine setting: start end milling machine tool, machine on the milling cutter of adjustable side scriber frame, draw tip alignment end mill observation line, along end mill face no-load running end mill(ing) cutter, the situation that departs from of scriber frame needle point running orbit and end mill observation line for observation machine, and hold out against micromatic setting and leading screw micromatic setting adjustment means is flapped toward by the hydraulic pressure of both sides on clamping tool, until end mill end mill observation line and machine fit like a glove with scriber frame needle point track, complete the steel member position fine setting of facing cut heavy in section;

(5), steel member in heavy in section is fixed: after having finely tuned, the hydraulic pressure holding device of fastening clamping tool both sides and leading screw micromatic setting fixed component are indulged lateral shift, then very heavyly peak at supporting plane benchmark tire, heavy in section steel member web upper and lower sides and compress the movement of the vertical direction that fixes member between gate-type framework or member vibrations when end mill by regulating member on clamping tool vertically to hold out against threaded adjusting piece and vertically compressing;

(6), end mill processing: heavy in section steel component for adjusting and fixing after, opening end milling machine tool, adjustable side milling cutter is to the position of end mill line, adjusting machine uses scriber frame needle point behind the position of end mill observation line, start end mill, the uniformity of scriber frame China's needle point and end mill observation line for guarantee machine, until by complete heavy in section steel member end mill.

Advantage of the present invention and beneficial effect are:

Heavy in section of the present invention steel member end facing cut processing method is simple to operate, effectively reduce end mill line error by precise calibration, finely tune by accurately drawing end mill line and end mill observation line, member clamping tool fixed component, machine scriber frame carries out the methods such as member end mill track following and greatly improved precision and the efficiency of facing cut processing, effectively reduce costs.

The present invention by accurate end mill line draw, the method such as the conveniently initial adjustment of clamping tool to member, fine setting and application fixing, machine scriber frame and end mill observation line efficiently, precision and the efficiency of member end facing cut are ensured, method simply understands, greatly reduce the input of doing over again, scrapping etc. causing because end face processing is defective, meanwhile, also for high-precision structure steel fabrication and efficient Steel Structure Installation provide technical support.

Brief description of the drawings

Fig. 1 is end milling machine bed structure schematic diagram of the present invention (installing heavy in section steel member additional);

Fig. 2 is the upward view of Fig. 1;

Fig. 3 is the left view of Fig. 2;

Fig. 4 is that on the steel member of heavy in section, end mill line and end mill observation line draw schematic diagram.

Detailed description of the invention

Below by specific embodiment, the invention will be further described, and following examples are descriptive, is not determinate, can not limit protection scope of the present invention with this.

A kind of heavy in section steel member end facing cut processing method, is characterized in that: the method step is:

(1), first the heavy in section steel member 5 of making is proofreaied and correct, ensure that the each size of member is within the scope of tolerance;

(2), draw end mill line 2 and end mill observation line 4: on wide of heavy in section steel member, adopt right angle to hook a burst method and draw end mill line and end mill observation line;

(3), the longitudinal and horizontal initial adjustment of heavy in section steel member placement location: by heavy in section steel lifting component on the supporting plane benchmark tire 9 of the frock that is fixedly clamped, when placement, its end mill line and end mill observation line ensure that end mill position, in the stroke range of end mill(ing) cutter 10, completes the preliminary adjusting of heavy in section steel member lengthwise position upward and in the vertical; The level that simultaneously heavy in section steel member one side is close proximity to frock holds out against benchmark bearing 8, and regulate hydraulic pressure holding device 6 and the leading screw micromatic setting 7 of steel member both sides, heavy in section by cooperation, make visual end mill line position consistent with end mill(ing) cutter track, the lateral attitude that completes member tentatively regulates;

(4), the uniformity of heavy in section steel member end milling cutter running orbit and end mill line fine setting: start end milling machine tool 1, scriber frame 3 for machine on the milling cutter of adjustable side, draw tip alignment end mill observation line, along end mill face no-load running end mill(ing) cutter, the situation that departs from of scriber frame needle point running orbit and end mill observation line for observation machine, and hold out against micromatic setting and leading screw micromatic setting adjustment means is flapped toward by the hydraulic pressure of both sides on clamping tool, until end mill end mill observation line and machine fit like a glove with scriber frame needle point track, complete the steel member position fine setting of facing cut heavy in section;

(5), steel member in heavy in section is fixed: after having finely tuned, the hydraulic pressure holding device of fastening clamping tool both sides and leading screw micromatic setting fixed component are indulged lateral shift, then by regulating member on clamping tool vertically to hold out against threaded adjusting piece 13 and vertically compressing jack 11 in supporting plane benchmark tire, heavy in section steel member web upper and lower sides and compress the movement of the vertical direction that fixes member between gate-type framework 12 or member vibrations when end mill;

(6), end mill processing: heavy in section steel component for adjusting and fixing after; opening end milling machine tool; adjustable side milling cutter is to the position of end mill line; adjusting machine uses scriber frame needle point behind the position of end mill observation line; start end mill, the uniformity of scriber frame China's needle point and end mill observation line for guarantee machine, as found skew hard stop; again end mill after adjustment, until by complete heavy in section steel member end mill.

Claims (1)

1. a heavy in section steel member end facing cut processing method, is characterized in that: the method step is:

(1), first the heavy in section steel member of making is proofreaied and correct, ensure that the each size of member is within the scope of tolerance;

(2), draw end mill line and end mill observation line: on wide of heavy in section steel member, adopt right angle to hook a burst method and draw end mill line and end mill observation line;

(3), the longitudinal and horizontal initial adjustment of heavy in section steel member placement location: by heavy in section steel lifting component on the supporting plane benchmark tire of the frock that is fixedly clamped, when placement, its end mill line and end mill observation line ensure that end mill position, in the stroke range of end mill(ing) cutter, completes the preliminary adjusting of heavy in section steel member lengthwise position upward and in the vertical; The level that simultaneously heavy in section steel member one side is close proximity to frock holds out against benchmark bearing, and regulate hydraulic pressure holding device and the leading screw micromatic setting of steel member both sides, heavy in section by cooperation, make visual end mill line position consistent with end mill(ing) cutter track, the lateral attitude that completes member tentatively regulates;

(4), the uniformity of heavy in section steel member end milling cutter running orbit and end mill line fine setting: start end milling machine tool, machine on the milling cutter of adjustable side scriber frame, draw tip alignment end mill observation line, along end mill face no-load running end mill(ing) cutter, the situation that departs from of scriber frame needle point running orbit and end mill observation line for observation machine, and hold out against micromatic setting and leading screw micromatic setting adjustment means is flapped toward by the hydraulic pressure of both sides on clamping tool, until end mill end mill observation line and machine fit like a glove with scriber frame needle point track, complete the steel member position fine setting of facing cut heavy in section;

(5), steel member in heavy in section is fixed: after having finely tuned, the hydraulic pressure holding device of fastening clamping tool both sides and leading screw micromatic setting fixed component are indulged lateral shift, then very heavyly peak at supporting plane benchmark tire, heavy in section steel member web upper and lower sides and compress the movement of the vertical direction that fixes member between gate-type framework or member vibrations when end mill by regulating member on clamping tool vertically to hold out against threaded adjusting piece and vertically compressing;

(6), end mill processing: heavy in section steel component for adjusting and fixing after, opening end milling machine tool, adjustable side milling cutter is to the position of end mill line, adjusting machine uses scriber frame needle point behind the position of end mill observation line, start end mill, the uniformity of scriber frame China's needle point and end mill observation line for guarantee machine, until by complete heavy in section steel member end mill.