阅读说明：本技术 一种冲头pta焊接工艺 (Punch PTA welding process ) 是由 张胜峰 李长友 于 2021-06-10 设计创作，主要内容包括：本发明涉及焊接工艺技术领域,且公开了一种冲头PTA焊接工艺,包括以下步骤：将多组待焊接的物件安装在工件托盘上,将抓取工件用的机械卡爪对多组物件进行定位。将机械卡爪对准一组物件,下移机械卡爪并使其张开,在机械卡爪包裹物件后控制机械卡爪闭合将物件夹持,翻转机械卡爪使物件朝上,展开机械卡爪使物件自然下落,在闭合机械卡爪夹紧物件后再次展开机械卡爪,在再次闭合机械卡爪后即可确保工件夹持牢固。该冲头PTA焊接工艺,通过采用全新等离子弧(PTA)技术对冲头进行熔焊,进而使冲头和母材完美熔合不产生任何裂痕,且延长了冲头了使用寿命,增强了冲头的耐热程度和硬度,在保障冲头产能的情况下提高了冲头制造的品质,适宜推广。(The invention relates to the technical field of welding processes, and discloses a punch PTA welding process, which comprises the following steps: a plurality of groups of objects to be welded are arranged on a workpiece tray, and a mechanical clamping jaw for grabbing the workpiece is used for positioning the plurality of groups of objects. The mechanical clamping jaws are aligned to a group of objects, the mechanical clamping jaws are moved downwards and opened, the mechanical clamping jaws are controlled to be closed to clamp the objects after the mechanical clamping jaws wrap the objects, the mechanical clamping jaws are turned over to enable the objects to face upwards, the mechanical clamping jaws are unfolded to enable the objects to naturally fall, the mechanical clamping jaws are unfolded again after the mechanical clamping jaws are closed to clamp the objects, and the workpieces can be firmly clamped after the mechanical clamping jaws are closed again. According to the punch PTA welding process, the new plasma arc (PTA) technology is adopted to perform fusion welding on the punch, so that the punch and the base metal are perfectly fused without generating any crack, the service life of the punch is prolonged, the heat resistance and hardness of the punch are enhanced, the quality of punch manufacturing is improved under the condition of ensuring the capacity of the punch, and the punch PTA welding process is suitable for popularization.)

1. The punch PTA welding process is characterized by comprising the following steps of:

the method comprises the following steps: mounting a plurality of groups of objects to be welded on a workpiece tray, and then positioning the plurality of groups of objects by using a mechanical clamping jaw for grabbing the workpiece;

step two: aligning the mechanical clamping jaws to a group of objects, moving the mechanical clamping jaws downwards and opening the mechanical clamping jaws, controlling the mechanical clamping jaws to be closed to clamp the objects after the mechanical clamping jaws wrap the objects, turning over the mechanical clamping jaws to enable the objects to face upwards, unfolding the mechanical clamping jaws to enable the objects to naturally fall, unfolding the mechanical clamping jaws again after the mechanical clamping jaws are closed to clamp the objects, and ensuring that the workpieces are clamped firmly after the mechanical clamping jaws are closed again;

step three: the mechanical clamping jaw is rotated again to enable the object to be transverse, then the mechanical clamping jaw is driven to move left through the crawler belt conveying device, when the outer side of the object is aligned to a welding gun nozzle, a servo motor is started to drive metal powder in a welding powder tank to be sent to the welding gun nozzle to generate plasma arc of 3000 ℃ to melt the welding powder for spray welding, and meanwhile, the mechanical clamping jaw is slowly rotated to enable the outer ring of the object to be subjected to fusion welding;

step four: after the outer ring of the object is subjected to fusion welding, moving the mechanical clamping jaw to separate the object from the welding gun, then rotating the mechanical clamping jaw again to naturally cool the object, turning the mechanical clamping jaw over to enable the object to face upwards in the cooling process, then moving the mechanical clamping jaw through the crawler conveyor to enable the top end of the object to be in contact with a nozzle of the welding gun, and slowly rotating the mechanical clamping jaw to enable the object to be subjected to fusion welding;

step five: after the fusion welding of the object is finished, the mechanical clamping jaw is reversely rotated to enable the object to be horizontally placed towards the right, then the mechanical clamping jaw is moved to the upper side of the discharge port through the crawler belt conveying device, the object can be dropped to the discharge port after the mechanical clamping jaw is loosened, and the fusion welding operation of the object is completed.

2. The punch PTA welding process of claim 1, wherein: and the outer ring of the plasma arc is provided with inert gas of argon as protective gas for protection and pressurization.

3. The punch PTA welding process of claim 1, wherein: the crawler belt conveying device is common crawler belt conveying equipment in the market and comprises a rotating motor, a speed reducer, a roller, a support, a carrier roller, a conveying belt and a balance weight.

4. The punch PTA welding process of claim 1, wherein: the pneumatic valve is arranged at the discharge port, the pneumatic valve is required to be opened to use gas to clean after the mechanical clamping jaw unloads one group of objects, and then the next group of objects are clamped.

5. The punch PTA welding process of claim 1, wherein: the welding powder tank and the servo motor are arranged at the tops of the welding gun and the nozzle, and the welding powder tank is communicated with the welding gun nozzle.

Technical Field

The invention relates to the technical field of welding processes, in particular to a punch PTA welding process.

Background

The light weight of the glass bottle can contributes to the energy conservation, emission reduction, capacity improvement, quality improvement, convenient storage and transportation and other values, the method is beneficial to glass factories, filling factories and society and is increasingly popular in the industry, the most advanced forming process of the lightweight bottle and can is a small-opening pressure-blowing method, the biggest difference between the small-opening pressure-blowing process and the common blowing-blowing process in the aspect of a die is that a core is changed into a punch, and the small-opening pressure-blowing punch has a small diameter and long contact time with molten glass, has extremely high requirements on the characteristics of high temperature resistance, oxidation resistance, deformation resistance and the like, most of the existing domestic tungsten carbide punches are imported abroad, however, the method is inconsistent with the domestic market due to long purchase time and high price, and the conventional supersonic speed spray welding tungsten carbide punch easily causes cracks on the base metal, so that the service life and the heat-resistant hardness of the punch are influenced.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the punch PTA welding process, which has the advantages of high hardness, long on-machine service life and the like, and solves the problems of short service life and poor heat-resistant hardness.

(II) technical scheme

In order to realize the purposes of high hardness, long service life and easy maintenance, the invention provides the following technical scheme: a punch PTA welding process comprises the following steps:

the method comprises the following steps: a plurality of groups of objects to be welded are arranged on a workpiece tray, and then a mechanical clamping jaw for grabbing the workpiece is used for positioning the plurality of groups of objects.

Step two: the mechanical clamping jaws are aligned to a group of objects, then the mechanical clamping jaws are moved downwards and opened, the mechanical clamping jaws are controlled to be closed to clamp the objects after the mechanical clamping jaws wrap the objects, then the mechanical clamping jaws are turned over to enable the objects to face upwards, then the mechanical clamping jaws are unfolded to enable the objects to naturally fall, the mechanical clamping jaws are unfolded again after the mechanical clamping jaws are closed to clamp the objects, and the workpieces can be firmly clamped after the mechanical clamping jaws are closed again.

Step three: and rotating the mechanical clamping jaw again to enable the object to be transverse, then driving the mechanical clamping jaw to move left through the crawler belt conveying device, when the outer side of the object is aligned to a welding gun nozzle, starting the servo motor to drive metal powder in the welding powder tank to be sent to the welding gun nozzle to generate plasma arc of 3000 ℃ to melt the welding powder for spray welding, and meanwhile slowly rotating the mechanical clamping jaw to enable the outer ring of the object to be subjected to fusion welding.

Step four: after the outer ring of the object is subjected to fusion welding, the mechanical clamping jaw is moved to separate the object from the welding gun, then the mechanical clamping jaw is rotated again to naturally cool the object, the mechanical clamping jaw is turned over to enable the object to face upwards in the cooling process, then the mechanical clamping jaw is moved through the crawler belt conveying device to enable the top end of the object to be in contact with a nozzle of the welding gun, and the object can be subjected to fusion welding after the mechanical clamping jaw is slowly rotated.

Step five: after the fusion welding of the object is finished, the mechanical clamping jaw is reversely rotated to enable the object to be horizontally placed towards the right, then the mechanical clamping jaw is moved to the upper side of the discharge port through the crawler belt conveying device, the object can be dropped to the discharge port after the mechanical clamping jaw is loosened, and the fusion welding operation of the object is completed.

Preferably, the outer ring of the plasma arc is argon, and inert gas is used as shielding gas for shielding and pressurizing.

Preferably, the crawler belt conveying device is a crawler belt conveying device commonly available in the market, and comprises a rotating motor, a speed reducer, a roller, a support, a carrier roller, a conveying belt and a balance weight.

Preferably, a pneumatic valve is arranged at the discharge port, and after a group of objects are unloaded, the mechanical clamping jaws need to be opened by the pneumatic valve to use gas for cleaning, and then the next group of objects are clamped.

Preferably, the welding powder tank and the servo motor are arranged at the tops of the welding gun and the nozzle, and the welding powder tank is communicated with the nozzle of the welding gun.

(III) advantageous effects

Compared with the prior art, the invention provides a punch PTA welding process, which has the following beneficial effects:

1. according to the punch PTA welding process, the new plasma arc (PTA) technology is adopted to perform fusion welding on the punch, so that the punch and the base metal are perfectly fused without generating any crack, the service life of the punch is prolonged, the heat resistance and hardness of the punch are enhanced, the quality of punch manufacturing is improved under the condition of ensuring the capacity of the punch, and the punch PTA welding process is suitable for popularization.

2. The punch PTA welding process has the advantages that the automatic equipment is adopted, the workload of operators is reduced, the production cost is reduced under the condition of ensuring the quality of objects, the fusion welding working efficiency is improved, convenience is provided for the work of the operators, and the punch PTA welding process is suitable for popularization.

Drawings

FIG. 1 is a flow chart of the process.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, a punch PTA welding process includes the following steps:

the method comprises the following steps: a plurality of groups of objects to be welded are arranged on a workpiece tray, and then a mechanical clamping jaw for grabbing the workpiece is used for positioning the plurality of groups of objects.

Step two: the mechanical clamping jaws are aligned to a group of objects, then the mechanical clamping jaws are moved downwards and opened, the mechanical clamping jaws are controlled to be closed to clamp the objects after the mechanical clamping jaws wrap the objects, then the mechanical clamping jaws are turned over to enable the objects to face upwards, then the mechanical clamping jaws are unfolded to enable the objects to naturally fall, the mechanical clamping jaws are unfolded again after the mechanical clamping jaws are closed to clamp the objects, and the workpieces can be firmly clamped after the mechanical clamping jaws are closed again.

Step three: and rotating the mechanical clamping jaw again to enable the object to be transverse, then driving the mechanical clamping jaw to move left through the crawler belt conveying device, when the outer side of the object is aligned to a welding gun nozzle, starting the servo motor to drive metal powder in the welding powder tank to be sent to the welding gun nozzle to generate plasma arc of 3000 ℃ to melt the welding powder for spray welding, and meanwhile slowly rotating the mechanical clamping jaw to enable the outer ring of the object to be subjected to fusion welding.

Step four: after the outer ring of the object is subjected to fusion welding, the mechanical clamping jaw is moved to separate the object from the welding gun, then the mechanical clamping jaw is rotated again to naturally cool the object, the mechanical clamping jaw is turned over to enable the object to face upwards in the cooling process, then the mechanical clamping jaw is moved through the crawler belt conveying device to enable the top end of the object to be in contact with a nozzle of the welding gun, and the object can be subjected to fusion welding after the mechanical clamping jaw is slowly rotated.

Step five: after the fusion welding of the object is finished, the mechanical clamping jaw is reversely rotated to enable the object to be horizontally placed towards the right, then the mechanical clamping jaw is moved to the upper side of the discharge port through the crawler belt conveying device, the object can be dropped to the discharge port after the mechanical clamping jaw is loosened, and the fusion welding operation of the object is completed.

In the invention, inert gas of argon is used as protective gas to carry out protection pressurization on the outer ring of the plasma arc.

In the invention, the crawler conveying device is a common crawler conveying device in the market and consists of a rotating motor, a speed reducer, a roller, a bracket, a carrier roller, a conveying belt and a balance weight.

In the invention, the pneumatic valve is arranged at the discharge port, and after a group of objects are unloaded by the mechanical clamping jaw, the pneumatic valve is started to use gas for cleaning, and then the next group of objects are clamped.

In the invention, the welding powder tank and the servo motor are arranged at the tops of the welding gun and the nozzle, and the welding powder tank is communicated with the nozzle of the welding gun.

According to the punch PTA welding process, the new plasma arc (PTA) technology is adopted to perform fusion welding on the punch, so that the punch and the base metal are perfectly fused without generating any crack, the service life of the punch is prolonged, a data comparison graph is referred, data of the service life of the punch produced by the process are obtained according to experiments, the heat resistance degree and hardness of the punch are enhanced, the quality of punch manufacturing is improved under the condition of ensuring the punch capacity, and the punch PTA welding process is suitable for popularization.

The punch PTA welding process has the advantages that the automatic equipment is adopted, the workload of operators is reduced, the production cost is reduced under the condition of ensuring the quality of objects, the fusion welding working efficiency is improved, convenience is provided for the work of the operators, and the punch PTA welding process is suitable for popularization.

Name of art	Supersonic process	Plasma arc (PTA) process
			Service life	92 hours	275 hours

(data comparison graph)

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.