阅读说明：本技术 一种双金属复合坯料真空焊接装置及方法 (A kind of bimetallic composite blank vacuum welding device and method ) 是由 曾麟芳 向勇 于 2019-09-05 设计创作，主要内容包括：本发明提供了一种双金属复合坯料真空焊接装置,包括支架、设于所述支架且具有箱门的箱体、设于所述箱体内用于驱动双金属复合坯料旋转的旋转机构、驱动所述旋转机构可沿垂直于箱门方向往复运动的传输机构、位于所述箱体外且与所述传输机构衔接的上料机构、与所述箱体连接的真空泵机组、及设于所述箱体顶部的电子束焊枪。本发明供的双金属复合坯料真空焊接装置,在保证复合坯料覆层与芯部的装配间隙为真空环境下对复合坯料的两端进行封口,为后续的热轧工艺提供净界面的环境以保证两种材料的冶金结合。本发明还提供一种双金属复合坯料真空焊接方法。(The present invention provides a kind of bimetallic composite blank vacuum welding device, including bracket, set on the bracket and feed mechanism that the cabinet with chamber door, the rotating mechanism in the cabinet for driving bimetallic composite blank to rotate, the driving rotating mechanism can be connected along the transmission mechanism moved back and forth perpendicular to chamber door direction, outside the cabinet and with the transmission mechanism, the vacuum pump assembly being connect with the cabinet and the electron beam gun set on the top of the box.The bimetallic composite blank vacuum welding device that the present invention supplies, the both ends of composite blank are sealed in the case where the fit-up gap for guaranteeing composite blank coating and core is vacuum environment, the metallurgical bonding for providing the environment in limbo face for subsequent hot rolling technology to guarantee two kinds of materials.The present invention also provides a kind of bimetallic composite blank vacuum welding methods.)

1. a kind of bimetallic composite blank vacuum welding device, which is characterized in that including bracket, be set to the bracket and there is case The cabinet of door, the rotating mechanism in the cabinet for driving bimetallic composite blank to rotate, the driving rotating mechanism The feeding that can be connected along the transmission mechanism moved back and forth perpendicular to chamber door direction, outside the cabinet and with the transmission mechanism Mechanism, the vacuum pump assembly being connect with the cabinet and the electron beam gun set on the top of the box.

2. bimetallic composite blank vacuum welding device according to claim 1, which is characterized in that the transmission mechanism packet The first track, the mobile platform being slidably connected with first track, the driving mobile platform are included along first track The first driving device that extending direction reciprocatingly slides.

3. bimetallic composite blank vacuum welding device according to claim 2, which is characterized in that the first driving dress Set including be fixed on the mobile platform and output shaft through the mobile platform the first driving motor, be set to described first and drive The gear of dynamic motor output shaft end, the rack gear engaged with the gear, the extending direction of the rack gear and the mobile platform Glide direction is consistent, and the length of the rack gear is consistent with the length of the cabinet.

4. bimetallic composite blank vacuum welding device according to claim 3, which is characterized in that the rotating mechanism packet It includes and is supported on the mobile platform and spaced second driving motor and tailstock, is set to second driving motor and exports The rotary chuck of axis, set on the mandril of the tailstock, it is compound that the rotary chuck and the mandril grip the bimetallic The both ends of blank.

5. bimetallic composite blank vacuum welding device according to claim 4, which is characterized in that the mandril include with Connecting rod that the tailstock is connected through a screw thread, set on described connecting rod one end rotating handle, to be set to the connecting rod another The thimble held and be flexibly connected with the connecting rod, the thimble are oppositely arranged with second driving motor.

6. bimetallic composite blank vacuum welding device according to claim 4, which is characterized in that the second driving electricity Machine is speed regulating motor or servo motor.

7. bimetallic composite blank vacuum welding device according to claim 1, which is characterized in that the chamber door is manual Door or automatically-controlled door, and sealing ring is arranged in the chamber door and the cabinet contact site.

8. bimetallic composite blank vacuum welding device according to claim 1, which is characterized in that the electron beam gun It is two, respectively corresponds the both ends setting of the bimetallic composite blank.

9. a kind of bimetallic composite blank vacuum welding method, which is characterized in that described in utilization is of any of claims 1-8 Bimetallic composite blank vacuum welding device, includes the following steps:

Step S1, opens chamber door, and rotating mechanism is delivered to the feed mechanism outside cabinet by transmission mechanism；

Bimetallic composite blank is fixed on the rotating mechanism by step S2, and bimetallic will be fixed with by starting the transmission mechanism The rotating mechanism of composite blank is delivered in cabinet；

Step S3 closes chamber door, and starting vacuum pump assembly carries out vacuumize process to cabinet, meets vacuum state in cabinet very Reciprocal of duty cycle≤1 × 10^-1Pa；

Step S4, rotating mechanism drive the rotation of bimetallic composite blank, and start electron beam gun, to bimetallic composite blank into Row seal welding；

Step S5, vacuum pump assembly are inflated processing to cabinet；

Step S6, opens chamber door, and bimetallic composite blank is moved to discharging outside cabinet by transmission mechanism.

10. bimetallic composite blank vacuum welding method according to claim 9, which is characterized in that the electron beam welding Rifle penetrates the coating of the bimetallic composite blank, and infiltrates into its core 5-10mm.

Technical field

The present invention relates to metal working technical area, in particular to a kind of bimetallic composite blank vacuum welding device and side Method.

Background technique

Bimetallic stainless steel cladding reinforcing bar, which refers to do with stainless steel, covers material, makees core with ordinary carbon steel or ordinary low-alloy steel Portion, by way of hot rolling made of double metallic composite material.This double metallic composite material have both stainless steel corrosion resistance and The advantage of ordinary carbon steel high intensity has same or similar corrosion resistance, but cheap and power compared with pure stainless reinforcing bar It is more excellent to learn performance.Compared with straight carbon steel, mechanical property is quite but corrosion resistance advantage is obvious.Therefore, double metallic composite material It is increasingly valued by people, is widely used.

Currently, the preparation method of stainless steel composite muscle is substantially with physical method carbon steel stainless steel tube or stainless steel plate Rolling is directly heated after welding.The stainless steel cladding steel billet of such methods preparation, has gap between outer layer stainless steel and core, There are air to cause to aoxidize to plug in gap, seriously affects the combination between stainless steel cladding and plug.How by stainless steel The air of gap location is taken away and under vacuum by blank both ends solder up, the combination of the two is made to reach net between coating and plug Interface cohesion is the key that influence whether two kinds of metals reach metallurgical bonding.

In consideration of it, it is necessary to provide a kind of new vacuum soldering process to solve above-mentioned technical problem.

Summary of the invention

The technical problem to be solved in the present invention is to provide a kind of bimetallic composite blank vacuum welding device and methods, are protecting The fit-up gap of card composite blank coating and core is to seal under vacuum environment to the both ends of composite blank, is subsequent heat Roll process provides the environment in limbo face to guarantee the metallurgical bonding of two kinds of materials, and bimetallic composite blank provided by the invention is true Missing solder connection device and method, which have, acts simple, the operation is stable, high degree of automation, high-efficient equal feature.

To solve the above-mentioned problems, technical scheme is as follows:

A kind of bimetallic composite blank vacuum welding device, including bracket, set on the bracket and with chamber door cabinet, Rotating mechanism, the driving rotating mechanism in the cabinet for driving bimetallic composite blank to rotate can along perpendicular to The transmission mechanism of chamber door direction reciprocating motion, the feed mechanism being connected outside the cabinet and with the transmission mechanism and institute State the vacuum pump assembly of cabinet connection and the electron beam gun set on the top of the box.

Further, the transmission mechanism includes the first track, the mobile platform being slidably connected with first track, drives Move the first driving device that the mobile platform reciprocatingly slides along the extending direction of first track.

Further, the first driving device include be fixed on the mobile platform and output shaft through the movement put down First driving motor of platform, the gear set on first driving motor output shaft end, the rack gear that is engaged with the gear, institute The extending direction for stating rack gear is consistent with the mobile platform glide direction, and the length one of the length of the rack gear and the cabinet It causes.

Further, the rotating mechanism includes being supported on the mobile platform and spaced second driving motor With tailstock, set on the rotary chuck of second driving motor output shaft, set on the mandril of the tailstock, the rotary chuck and The mandril grips the both ends of the bimetallic composite blank.

Further, the mandril includes the connecting rod being connected through a screw thread with the tailstock, is set to the connecting rod one The rotating handle at end, set on the connecting rod other end and the thimble that is flexibly connected with the connecting rod, the thimble with it is described Second driving motor is oppositely arranged.

Further, second driving motor is speed regulating motor or servo motor.

It further, further include controller, for the sensor of vacuum degree in detection box, the sensor and controller Electrical connection.

Further, the chamber door is manually operated door or automatically-controlled door, and the chamber door and cabinet contact site setting are logical Cross sealing ring.

Further, the electron beam gun is two, respectively corresponds the both ends setting of the bimetallic composite blank.

The present invention also provides a kind of bimetallic composite blank vacuum welding methods, include the following steps:

Step S1, opens chamber door, and rotating mechanism is delivered to the feed mechanism outside cabinet by transmission mechanism；

Bimetallic composite blank is fixed on the rotating mechanism by step S2, start the transmission mechanism will be fixed with it is double The rotating mechanism of metal composite blank is delivered in cabinet；

Step S3 closes chamber door, and starting vacuum pump assembly carries out vacuumize process to cabinet, keeps vacuum state in cabinet full Sufficient vacuum degree≤1 × 10^-1Pa；

Step S4, rotating mechanism drives the rotation of bimetallic composite blank, and starts electron beam gun, to bimetallic composite billet Material carries out seal welding；

Step S5, vacuum pump assembly are inflated processing to cabinet；

Step S6, opens chamber door, and bimetallic composite blank is moved to discharging outside cabinet by transmission mechanism.

Further, the electron beam gun penetrates the coating of the bimetallic composite blank, and infiltrates into its core 5- 10mm。

Compared with prior art, bimetallic composite blank vacuum welding device provided by the invention and method, beneficial effect It is:

The compound cladding vacuum welding device of bimetallic provided by the invention is able to achieve and takes composite blank coating and core dress away Air with space, and composite blank both ends can be sealed under vacuum conditions, to guarantee that composite blank coating and core fill Vacuum state with space, the metallurgical bonding for providing the environment in limbo face for subsequent hot rolling technology to guarantee two kinds of materials.

Bimetallic composite blank vacuum welding device provided by the invention and method, have movement simple, the operation is stable, from The features such as dynamicization degree is high, high-efficient.

Detailed description of the invention

To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other Attached drawing.

Fig. 1 is the structural schematic diagram of bimetallic composite blank vacuum welding device provided by the invention；

Fig. 2 is the structural representation of the workpiece feeding state of bimetallic composite blank vacuum welding device provided by the invention Figure；

Fig. 3 is shown using a kind of workpiece weld seam after bimetallic composite blank vacuum welding device provided by the invention welding It is intended to；

Fig. 4 is using another workpiece weld seam after bimetallic composite blank vacuum welding device provided by the invention welding Schematic diagram.

Specific embodiment

Technical solution in embodiment in order to enable those skilled in the art to better understand the present invention, and make of the invention Above objects, features, and advantages can be more obvious and easy to understand, with reference to the accompanying drawing makees a specific embodiment of the invention into one The explanation of step.

It should be noted that being used to help understand the present invention for the explanation of these embodiments, but do not constitute Limitation of the invention.In addition, as long as technical characteristic involved in the various embodiments of the present invention described below is each other Between do not constitute conflict and can be combined with each other.

Fig. 1 and Fig. 2 are please referred to, wherein Fig. 1 is bimetallic composite blank vacuum welding device provided by the invention Structural schematic diagram；Fig. 2 is that the structure of the workpiece feeding state of bimetallic composite blank vacuum welding device provided by the invention is shown It is intended to.Bimetallic composite blank vacuum welding device 100 of the invention includes bracket 1, set on bracket 1 and with the case of chamber door 21 Body 2, set on the intracorporal transmission mechanism 3 of case and rotating mechanism 4, the feed mechanism 5 outside cabinet, the electricity set on 2 top of cabinet Beamlet welding gun 6, the vacuum pump assembly 7 being connect with cabinet 2.

The support of cabinet 2 is fixed on bracket 1, is in rectangular parallelepiped structure, when needing vacuum welding, is first carried out cabinet 2 Then vacuumize process completes vacuum welding in cabinet.The side of cabinet 2 has chamber door 21, at bimetallic composite blank Chamber door 21 is opened when feeding, conveying disengaging 2 state of cabinet；When carrying out vacuum welding, chamber door 21 is in close state, and is Guarantee the vacuum degree in cabinet 2, cabinet 2 needs to seal.Preferably, sealing ring is arranged (not in chamber door 21 and cabinet contact site Diagram), contact site is tightly connected by sealing ring.

In the present invention, chamber door 21 can be manually operated door or automatically-controlled door, and opening ways can be pushed and pulled for left and right, be taken out up and down It draws, overturning mode.Accordingly, the opening ways for controlling push-and-pull, upper and lower pull are needed in the setting sliding of the opposite sides side of cabinet Track.When chamber door 21 is set as automatically-controlled door, the opening and closing of chamber door 21 are by controller control (not shown, hereinafter to refer to) System.

Transmission mechanism 3 includes the first track 31, the mobile platform 32 being slidably connected with the first track 31, driving mobile platform 32 first driving devices 33 to reciprocatingly slide along the extending direction of the first track 31.Wherein the first track 31 is two, it is parallel and Interval setting, the first track 31 extend perpendicularly to chamber door 21；The bottom of mobile platform 32 is equipped with matches with the first track 31 The sliding block 321 of connection is closed, sliding block 321 slides along the first track 31 and mobile platform 32 is driven to move.

First driving device 33 includes the first driving motor 331 for being fixed on mobile platform, is set to the first driving motor 331 The gear 332 of output shaft end, the rack gear 333 engaged with gear 332, wherein the output shaft of the first driving motor 331 is through shifting Moving platform 32 is arranged, and the first driving motor 331 is located at the center of 32 one end of mobile platform, i.e. the first driving motor 331 Between two first tracks 31, stress is more balanced when making that mobile platform 32 is driven to slide.Gear 332 is set to the first driving electricity 331 output shaft end of machine, i.e., be distributed in the opposite sides of mobile platform with the first driving motor.The extending direction of rack gear 333 with The glide direction of mobile platform 32 is consistent, and the length of rack gear 333 is consistent with the length of cabinet 2.Start the first driving motor 331, output shaft rotation rotates gear 332, and gear 332 moves in a straight line on rack gear 333 while rotation, to drive Mobile platform 32 is mobile.

It should be noted that in order to realize that mobile platform 32 is moved back and forth along the extending direction of the first track 31, by first Driving motor 331 is designed as clockwise and anticlockwise motor, such as: when the first driving motor 331 rotates forward, mobile platform 32 in cabinet by moving To outside cabinet, when the reversion of the first driving motor 331, mobile platform 32 outside cabinet by being moved in cabinet.Certainly, it first drives The positive and negative rotation rule of dynamic motor 331 can and also it is opposite with above-mentioned rule.

Rotating mechanism 4 includes that support is fixed on mobile platform 32 and spaced second driving motor 41 and tailstock 42, it is pressed from both sides set on the rotary chuck 43 of the second driving motor output shaft, set on the mandril 44 of tailstock 42, rotary chuck 43 and mandril 44 Hold the both ends of fixed bimetallic composite blank 200.Wherein, the second driving motor 41 is set to mobile platform 32 close to the first driving One end of motor 331, tailstock 42 are set to the other end of mobile platform 32, i.e., when mobile platform 32 is located in cabinet 2, tailstock 42 It is arranged close to chamber door 21.

Second driving motor 41 is speed regulating motor or servo motor, and revolving speed can be adjusted according to actual welding speed. Rotary chuck 43 is used to fix one end of bimetallic composite blank 200, and the output shaft of the second driving motor 41 is followed to turn together Dynamic, in the present embodiment, the structure of rotary chuck 43 is referring to the prior art, and this will not be repeated here.Mandril 44 includes logical with tailstock 42 Cross be threadedly coupled connecting rod 441, set on 441 one end of connecting rod rotating handle 442, be set to 441 other end of connecting rod and with The thimble 443 that connecting rod 441 is flexibly connected.Rotating handle 442 is rotated, moves connecting rod 441 far from rotary chuck 43, is increased Relative spacing of the thimble 443 relative to rotary chuck 43, to facilitate feeding and the blanking of bimetallic composite blank；Opposite direction Rotating handle 442 is rotated, moves connecting rod 441 close to rotary chuck 43, thimble 443 and rotary chuck 43 cooperate double gold Belong to composite blank clamping without sliding.Thimble 443 be flexibly connected with connecting rod 441 refer to bimetallic composite blank rotation when, top Needle 443 follows bimetallic composite blank to rotate, and connecting rod 441 does not rotate.

In the present embodiment, the rotation speed of bimetallic composite blank is controlled in 100-800mm/min.

Feed mechanism 5 includes material loading platform 51, the second track 52 set on material loading platform 51.The wherein height of material loading platform 51 Degree is consistent with the bottom plate heights of cabinet 2, and the second track 52 and the first track 31 are collinear.Accordingly, the second track 52 is also two, I.e. the second track 51 is connected with the first track 31, and after mobile platform 31 removes cabinet, mobile platform is slided along the second track 51.

Electron beam gun 6 is two, respectively corresponds the both ends setting of bimetallic composite blank.When carrying out vacuum welding, Two electron beam guns 6 carry out sealing treatment to the port of bimetallic composite blank respectively.The bonding power of electron beam gun 6, Line, speed of welding are adjustable, in practical applications, can as needed blind hole through welding bimetallic composite blank coating, make weld seam It penetrates coating and infiltrates into core 5-10mm, keep the two welding stronger.

Vacuum pump assembly 7 is connect with cabinet 2, is had the function of vacuumizing and be inflated simultaneously.The pumping of vacuum pump assembly 7 Pipe 71 is connect with cabinet 2, and for providing negative pressure for cabinet 2, the gas tube connecting with cabinet 2 is arranged on the exhaust pipe of vacuum pump 75 72, for exporting in compressed air to cabinet 2, compressed air is provided by air compressor 73.71/ gas tube 72 of exhaust tube and case The connection of body, is controlled by valve, and if vacuum pump 75 works, the valve opening on exhaust tube 71 is set on gas tube 72 Valve close；Air compressor 73 works, and the valve on exhaust tube 71 is closed, and the valve on gas tube 72 is opened It opens.In the present embodiment, vacuum pump assembly 7 further includes surge tank 74, and the air extracted out out of cabinet 2 enters after surge tank 74 Vacuum pump 75, and the barotropic gas that air compressor 73 provides is also through in the laggard cartonning body of surge tank 74.In the present invention, by vacuum Pump assembly 7 is designed as vacuumizing and inflating dual-purpose, is the unlatching of chamber door 21 after the completion of facilitating vacuum welding.

And in the present invention, by 7 vacuumize process of vacuum pump assembly, the vacuum state in cabinet 2 is made to meet vacuum degree≤1 ×10^-1Pa；In vacuum welding overcharges, vacuum pump assembly 7 should remain evacuated state, make covering for bimetallic composite blank Vacuum degree≤1 × 10 between layer and core^-1Pa。

In order to facilitate control, vacuum welding device provided by the invention further includes controller (not shown) and for detection case The sensor (not shown) of internal vacuum degree, and sensor is electrically connected with the controller.When sensor detects vacuum degree in cabinet ≤1×10^-1Pa, controller control the starting of the second driving motor 41, the rotation of bimetallic composite blank；Electron beam gun is controlled simultaneously 6 work carry out seal welding to bimetallic composite blank.In practical application, can according to the rotation speed of bimetallic composite blank, Calculate the time that vacuum welding is completed, and then is stopped working by controller the second driving motor 41 of control and electron beam gun 6.

Certainly, in addition to by controller control other than, can also manually by operation button by way of start or close each portion Part.

Fig. 4 and Fig. 4 are please referred to, wherein Fig. 3 is hinged with using bimetallic composite blank vacuum welding provided by the invention A kind of workpiece weld seam schematic diagram after setting welding；Fig. 4 is using bimetallic composite blank vacuum welding device provided by the invention Another workpiece weld seam schematic diagram after welding.Fig. 3 indicates that one of weld seam is respectively welded in 200 both ends of bimetallic composite blank Structural schematic diagram, Fig. 4 indicate that the structural schematic diagram of three weld seams is respectively welded in 200 both ends of bimetallic composite blank.According to reality Border needs, and the weld seam of different number is respectively welded at the both ends of bimetallic composite blank, makes to weld compound subsequent hot rolled technique Requirement.

Structure description based on above-mentioned bimetallic composite blank vacuum welding device, it is multiple that the present invention also provides a kind of bimetallics Close blank vacuum welding method, the specific steps are as follows:

Step S1, opens chamber door, and rotating mechanism 4 is delivered to the feed mechanism 5 outside cabinet by transmission mechanism 3；

Bimetallic composite blank is fixed on rotating mechanism 4 by step S2, and starting transmission mechanism 3 will be fixed with bimetallic and answer The rotating mechanism 4 for closing blank is delivered in cabinet 2；

Step S3, closes chamber door 21, and starting vacuum pump assembly 7 carries out vacuumize process to cabinet 2, makes vacuum shape in cabinet State meets vacuum degree≤1 × 10^-1Pa；

Step S4, rotating mechanism 4 drives the rotation of bimetallic composite blank, and starts electron beam gun 6, compound to bimetallic Blank carries out seal welding；Preferably, by electron beam gun, the coating of bimetallic composite blank is penetrated, weld seam is penetrated and covers Layer simultaneously infiltrates into core 5-10mm, keeps the two welding stronger；

Step S5, vacuum pump assembly 7 are inflated processing to cabinet；

Step S6, opens chamber door 21, and bimetallic composite blank is moved to the outer discharging of cabinet 2 by transmission mechanism 3.

The bimetallic composite blank welded using vacuum welding device provided by the invention and method, through subsequent hot rolled technique After molding, stretching experiment is carried out.Find do not occur delamination between incision position coating and core, in conjunction with bad by stretching fracture Phenomena such as, further illustrate that the two is metallurgical bonding, binding performance is excellent.

All the embodiments in this specification are described in a progressive manner, same and similar portion between each embodiment Dividing may refer to each other, and the highlights of each of the examples are differences from other embodiments.

Embodiments of the present invention are explained in detail in conjunction with attached drawing above, but the present invention is not limited to described reality Apply mode.To those skilled in the art, without departing from the principles and spirit of the present invention to these embodiments The a variety of change, modification, replacement and modification carried out are still fallen within protection scope of the present invention.