CN105268823A

CN105268823A - Pipe stamping and cutting method

Info

Publication number: CN105268823A
Application number: CN201510069346.1A
Authority: CN
Inventors: 陶晟; 张秋实
Original assignee: CHANGCHUN JINJIANG AUTO PARTS CO LTD
Current assignee: CHANGCHUN JINJIANG AUTO PARTS CO LTD
Priority date: 2015-02-11
Filing date: 2015-02-11
Publication date: 2016-01-27

Abstract

The invention relates to a pipe stamping and cutting method. The method includes the following steps that firstly, strip punching, wherein a strip is punched on a numerical control punch, and a notch is punched in the position to be cut; secondly, pipe manufacturing, wherein the punched strip with the notch is placed on a pipe manufacturing machine and rolled through a common roller to form a pipe; and thirdly, stamping and cutoff, wherein the notch in the pipe manufactured in the step (2) is placed on a punch male mold on the punch, and after the notch is located, stamping and cutoff are conducted. By the adoption of the method, the cut pipe has the beneficial effects of being free of burrs and deformation and precise in locating, and can be widely used in the field of pipe cutting.

Description

A kind of pipe die cut method

Technical field

The present invention relates to pipe fitting manufacture field, particularly a kind of pipe die cut method.

Background technology

At present, rectangular pipe generally adopts metal annular sawing machine to cut into meet the section shape pipe of instructions for use, and traditional pipe fitting cutting method comprises the following steps: 1) billot punching, adopts numerical control press, by PLC control program, coiled strip is gone out the porose area meeting designing requirement; 2) tubulation, by tuber by made billot, by the roll forming of multiple tracks roll, makes the pipe fitting of dimension; 3) sawing cutting, adopts metal annular sawing machine, pipe fitting is cut into the pipe fitting of drawing requirement.

Adopt the pipe that the cutting of this cutting method obtains, its port is usually jagged, and the cutting force of saw blade easily causes pipe port diameter to change, and therefore, needs to increase deburring and sizing operation.In addition, the saw blade that metal annular sawing machine uses, namely the pipe often cutting some needs reconditioning, therefore, there is saw blade consuming cost high.In addition, when adopting metal annular sawing machine cutting, contrast locating is more difficult, effectively cannot ensure that the end of pipe to be cut is apart from dimensional requirement, and in cutting process, broken the cutting of saw kerf also can have a negative impact to production and Environmental security.

Summary of the invention

For above-mentioned technical problem, the invention provides a kind of impulse-free robustness, without being out of shape and the pipe die cut method of registration.

For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of pipe die cut method, and it comprises the following steps: 1) billot punching, and billot is carried out punching on numerical control press, and rushes gap in position to be cut; 2) tubulation, by punching with rush the described billot after gap on tuber, makes pipe fitting by common roll roll forming; 3) punching press is cut off, by through described step 2 on punch press) gap of materials in the tube made is put on described punch press punch, and behind opening position location, punching press is cut off.

The described gap that rushes rushes gap mould and carries out operation by increasing by one on described numerical control press and complete.

The present invention is owing to adopting above technical scheme, its technique effect reached is: productive temp when 1, adopting traditional cutting method to carry out cutting pipes is generally 9 seconds/part, and productive temp when adopting the inventive method to carry out cutting pipes is generally 3 seconds/part, therefore, cutting efficiency improves about 3 times.When 2, adopting traditional cutting method to carry out cutting pipes, saw blade cutting cost is about 0.25 yuan/part, and when adopting the inventive method to carry out cutting pipes, die-cut punch-die cost is about 0.01 yuan/part, therefore, the production cost of only this item just can reduce about 25 times.3, adopt the pipe port impulse-free robustness of the inventive method cutting, caliber is unchanged, therefore, without the need to adding the operation of follow-up deburring and sizing, under meeting the prerequisite of split requirement, greatly reducing production process, thus effectively improve formation efficiency.When 4, adopting the inventive method to carry out cutting pipes, first utilize gap positioning punching position, the dimensional tolerance of first row pitch-row port can ensure 0.1, therefore, it is possible to effectively ensure product quality.When 5, adopting the inventive method cutting pipes, chip can be avoided to reclaim and subsequent treatment link, substantially improve in-situ production environment, in addition, the tablet that punching falls according to orthodox material waste recovery, additionally can bring economic benefit to enterprise.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, the invention will be further described:

Fig. 1 is schematic flow sheet of the present invention;

Fig. 2 is the structural representation of the billot adopting the inventive method process;

Fig. 3 is the structural representation of the pipe adopting the inventive method to make;

Fig. 4 is the structural representation of the pipe adopting the inventive method punching press to be formed.

Detailed description of the invention

The invention provides a kind of pipe die cut method, it comprises the following steps (as shown in Figure 1):

1) billot punching, the workbench of traditional numerical control press increases and a set ofly rushes gap mould, billot is clamped on automatic charging machine, numerical control press adopts Zhongshan Shenglong Forging Machine Co., LTD. to produce, model is the punch press of FCH-25-110-80T, controls numerical control press by PLC control program, according to the requirement of design drawing, punching 10 on billot 1, rushes gap 11(as shown in Figure 2 in position to be cut);

2) tubulation, by through the made billot of step 1) on traditional tuber, by common roll flow forming process, make with gap 20 pipe fitting 2(as shown in Figure 3);

3) punching press is cut off, by through step 2 on common punch press) gap 20 of pipe fitting 2 made is put on punch, and determine opening position location backlash crush-cutting and break (as shown in Figure 4), the expense material 21 simultaneously excised falls.

Above-mentioned embodiment is intended to illustrate that the present invention can be professional and technical personnel in the field and realizes or use; modifying to above-mentioned embodiment will be apparent for those skilled in the art; therefore the present invention includes but be not limited to above-mentioned embodiment; any these claims or description of meeting describes; meet and principle disclosed herein and novelty, the method for inventive features, technique, product, all fall within protection scope of the present invention.

Claims

1. a pipe die cut method, it comprises the following steps:

1) billot punching, carries out punching by billot on numerical control press, and rushes gap in position to be cut;

2) tubulation, by punching with rush the described billot after gap on tuber, makes pipe fitting by common roll roll forming;

3) punching press is cut off, by through described step 2 on punch press) gap of materials in the tube made is put on described punch press punch, and behind opening position location, punching press is cut off.

2. pipe die cut method as claimed in claim 1, is characterized in that: the described gap that rushes rushes gap mould and carries out operation by increasing by one on described numerical control press and complete.