阅读说明：本技术 一种壳体焊接生产方法 (Shell welding production method ) 是由 孔祥玉 于 2021-08-30 设计创作，主要内容包括：本发明提供一种壳体焊接生产方法,包括以下具体步骤,将U型板和两个侧板放于第一焊接机上,进行点焊,形成第一半成品,将第一半成品放于第二焊接机上,进行焊接,形成第二半成品,将第二半成品放于第三焊接机上,进行焊接,形成第三半成品,在第四焊接机上放上前板,将第三半成品放于前板上,通过按压将第三半成品压进前板内,进行点焊,形成第四半成品,将第四半成品放于第五焊接机上,进行焊接,形成第五半成品,将第五半成品放于第六焊接机上,进行焊接,形成壳体,整体加工效率高,且能保证整个焊接的强度,也就是能保证每一条缝的焊接的牢固性,且确保整体具有密封固定的作用。很好地避免容易出现焊接不牢固,密封性差的问题。(The invention provides a shell welding production method, which comprises the following steps of placing a U-shaped plate and two side plates on a first welding machine, performing spot welding to form a first semi-finished product, placing the first semi-finished product on a second welding machine, performing welding to form a second semi-finished product, placing the second semi-finished product on a third welding machine, performing welding to form a third semi-finished product, placing a front plate on a fourth welding machine, placing a third semi-finished product on the front plate, pressing the third semi-finished product into the front plate by pressing, performing spot welding to form a fourth semi-finished product, placing the fourth semi-finished product on a fifth welding machine, welding to form a fifth semi-finished product, placing the fifth semi-finished product on a sixth welding machine, welding to form a shell, and having high overall processing efficiency, and the strength of the whole welding can be ensured, namely the welding firmness of each seam can be ensured, and the whole welding machine has the sealing and fixing effects. The problems of insecure welding and poor sealing performance are well avoided.)

1. A shell welding production method is characterized by comprising the following specific steps:

s1, placing a U-shaped plate and two side plates on a first welding machine, respectively positioning the U-shaped plate and the two side plates, and performing spot welding through the first welding machine to preliminarily couple the U-shaped plate and the two side plates to form a first semi-finished product;

s2, placing the first semi-finished product on a second welding machine for positioning, and welding the top of the first semi-finished product through the second welding machine to form a second semi-finished product;

s3, placing the second semi-finished product on a third welding machine for positioning, and welding the side edge of the second semi-finished product through the third welding machine to form a third semi-finished product;

s4, placing a front plate on a fourth welding machine, placing the third semi-finished product on the front plate, positioning the third semi-finished product and the front plate, sleeving the third semi-finished product into the front plate through pressing, and performing four-side spot welding through the fourth welding machine to preliminarily connect the third semi-finished product and the front plate to form a fourth semi-finished product;

s5, placing the fourth semi-finished product on a fifth welding machine for positioning, and welding two long sides of the fourth semi-finished product through the fifth welding machine to form a fifth semi-finished product;

and S6, placing the fifth semi-finished product on a sixth welding machine for positioning, and welding two short sides of the fifth semi-finished product through the sixth welding machine to form the shell.

2. The shell welding production method according to claim 1, characterized in that: in step S1, the U-shaped plate and the two side plates are preliminarily coupled to form the first semi-finished product by placing the U-shaped plate and the two side plates on a first fixing mechanism, moving the first fixing mechanism to a welding position of the first welding machine by a first moving mechanism, and performing spot welding.

3. The shell welding production method according to claim 1, characterized in that: in step S2, the first semi-finished product is placed on a second fixing mechanism, and two edges and four eighth rounded corners of the top of the first semi-finished product are welded by the second welding machine to form the second semi-finished product.

4. The shell welding production method according to claim 1, characterized in that: in step S3, the second semi-finished product is placed on a third fixing mechanism, and four sides and four eighth fillets of the second semi-finished product are welded by the third welding machine to form the third semi-finished product.

5. The shell welding production method according to claim 1, characterized in that: in step S4, the front plate and the third semi-finished product are placed on a fourth fixing mechanism, the third semi-finished product is inserted into the front plate by pressing, and then four edges are spot-welded to preliminarily join the third semi-finished product and the front plate, so as to form the fourth semi-finished product.

6. The shell welding production method according to claim 1, characterized in that: in step S5, the fourth semi-finished product is placed on a fifth fixing mechanism, and then two long sides of the fourth semi-finished product connected to the front plate and four eighth fillets are welded to form the fifth semi-finished product.

7. The shell welding production method according to claim 1, characterized in that: in step S6, the fifth semi-finished product is placed on a sixth fixing mechanism, and then two short sides of the fifth semi-finished product connected to the front plate and four eighth fillets are welded to form the complete shell.

8. The shell welding production method according to claim 4, characterized in that: in the step S3, the third fixing mechanism is moved to the welding position of the third welding machine by a second moving mechanism.

9. The shell welding production method according to claim 6, characterized in that: in step S5, before the fourth semi-finished product is welded, the fourth semi-finished product is pressed by a first pressing mechanism and then welded.

10. The shell welding production method according to claim 7, characterized in that: in step S6, before the fifth semi-finished product is welded, the fifth semi-finished product is pressed by a second pressing mechanism and then welded.

Technical Field

The invention relates to the technical field of oven processing, in particular to a shell welding production method.

Background

An oven is a sealed electric appliance for baking food or drying products, and is classified into a home electric appliance and an industrial oven. The domestic oven can be used for processing some pasta. An industrial oven is a device used for drying products in industry, and is an electric oven and a gas oven, which are also called as an oven, a drying box and the like.

At present, the shell of a common oven is inaccurate in positioning and welding effects in the production and processing process, so that enamel on the surface of the shell is easy to damage, or the welding is not firm, the sealing performance is poor, and the overall finished product yield is influenced.

Disclosure of Invention

In order to solve the problems, the invention adopts the following technical scheme: a shell welding production method comprises the following specific steps:

s1, placing a U-shaped plate and two side plates on a first welding machine, respectively positioning the U-shaped plate and the two side plates, and performing spot welding through the first welding machine to preliminarily couple the U-shaped plate and the two side plates to form a first semi-finished product;

s2, placing the first semi-finished product on a second welding machine for positioning, and welding the top of the first semi-finished product through the second welding machine to form a second semi-finished product;

s3, placing the second semi-finished product on a third welding machine for positioning, and welding the side edge of the second semi-finished product through the third welding machine to form a third semi-finished product;

s4, placing a front plate on a fourth welding machine, placing the third semi-finished product on the front plate, positioning the third semi-finished product and the front plate, sleeving the third semi-finished product into the front plate through pressing, and performing spot welding through the fourth welding machine to preliminarily connect the third semi-finished product and the front plate to form a fourth semi-finished product;

s5, placing the fourth semi-finished product on a fifth welding machine for positioning, and welding two long sides of the fourth semi-finished product through the fifth welding machine to form a fifth semi-finished product;

and S6, placing the fifth semi-finished product on a sixth welding machine for positioning, and welding two short sides of the fifth semi-finished product through the sixth welding machine to form the shell.

Further, in step S1, the U-shaped plate and the two side plates are preliminarily coupled to form the first semi-finished product by placing the U-shaped plate and the two side plates on a first fixing mechanism, moving the first fixing mechanism to a welding position of the first welding machine by a first moving mechanism, and performing spot welding.

Further, in step S2, the first semi-finished product is placed on a second fixing mechanism, and two edges and four eighth rounded corners of the top of the first semi-finished product are welded by the second welding machine to form the second semi-finished product.

Further, in step S3, the second semi-finished product is placed on a third fixing mechanism, and four sides and four eighth fillets on two sides of the second semi-finished product are welded by the third welding machine to form the third semi-finished product.

Further, in step S4, the front plate and the third semi-finished product are placed on a fourth fixing mechanism, the third semi-finished product is inserted into the front plate by pressing, and then four edges are spot-welded to preliminarily couple the third semi-finished product and the front plate, so as to form the fourth semi-finished product.

Further, in step S5, the fourth semi-finished product is placed on a fifth fixing mechanism, and then two long sides of the fourth semi-finished product connected to the front plate and four eighth fillets are welded to form the fifth semi-finished product.

Further, in step S6, the fifth semi-finished product is placed on a sixth fixing mechanism, and then two short sides of the fifth semi-finished product connected to the front plate and four eighth fillets are welded to form the complete shell.

Further, in the step S3, the third fixing mechanism is moved to the welding position of the third welding machine by a second moving mechanism.

Further, in step S5, before the fourth semi-finished product is welded, the fourth semi-finished product is pressed by a first pressing mechanism and then welded.

Further, in step S6, before the fifth semi-finished product is welded, the fifth semi-finished product is pressed by a second pressing mechanism and then welded.

The invention has the beneficial effects that: the method for welding the shell of the oven has the advantages that the whole machining efficiency is high, the whole welding strength can be guaranteed, the welding firmness of each seam can be guaranteed, and the whole oven has the sealing and fixing effects. The problems of insecure welding and poor sealing performance are well avoided.

Drawings

The figures further illustrate the invention, but the examples in the figures do not constitute any limitation of the invention.

FIG. 1 is a production line layout of the present invention;

FIG. 2 is a flow chart of the present invention;

FIG. 3 is a schematic illustration of an orientation of a first welder provided in one embodiment;

FIG. 4 is a schematic illustration of an orientation of a second welding machine provided in one embodiment;

FIG. 5 is a schematic illustration of an orientation of a third welder provided in accordance with an embodiment;

FIG. 6 is a schematic illustration of an orientation of a fourth welder provided in accordance with an embodiment;

FIG. 7 is a schematic illustration of an orientation of a fifth welding machine provided in one embodiment;

FIG. 8 is a schematic illustration of an orientation of a sixth welding machine provided in accordance with an embodiment;

FIG. 9 is a schematic view of a direction of a product being welded by the first welding machine;

FIG. 10 is a schematic view of a direction of a product being welded by the second welder;

FIG. 11 is a schematic view of a direction of a product welded by the third welder;

FIG. 12 is a schematic view of a direction of a product welded by a fourth welder;

FIG. 13 is a schematic view of a direction of a product welded by the fifth welding machine;

FIG. 14 is a schematic view of a direction of a product welded by a sixth welding machine.

Detailed Description

The technical solutions of the present invention will be further described below with reference to the accompanying drawings of the embodiments of the present invention, and the present invention is not limited to the following specific embodiments. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

As shown in fig. 1 to 14, a shell welding production method includes the following specific steps:

s1, placing a U-shaped plate 700 and two side plates 800 on a first welding machine 100, respectively positioning the U-shaped plate 700 and the two side plates 800, and performing spot welding through the first welding machine 100 to preliminarily couple the U-shaped plate 700 and the two side plates 800 to form a first semi-finished product.

Specifically, the U-shaped plate 700 and the two side plates 800 are preliminarily coupled to form the first semi-finished product by placing the U-shaped plate 700 and the two side plates 800 on the first fixing mechanism 110, moving the first fixing mechanism 110 to the welding position of the first welding machine 100 by the first moving mechanism 120, and performing spot welding. Namely, the placing positions of the U-shaped plate 700 and the two side plates 800 are fixed by the first fixing mechanism 110, then the first moving mechanism 120 is controlled by the automatic control system of the first welding machine 100, the first fixing mechanism 110 is moved to the welding position by the first moving mechanism 120, and then the welding head is automatically controlled by the control system to weld the U-shaped plate 700 and the two side plates 800. Further, since each side plate 800 has three sides connected to the U-shaped plate 700, when welding, each side has four spot welding points 701, that is, the first welding machine 100 spot welds the U-shaped plate 700 and twenty-four points 701 on the two side plates 800, so that the U-shaped plate 700 is respectively connected to the two side plates 800 to perform the function of fixing the connection.

S2, the first semi-finished product is placed on a second welding machine 200 to be positioned, and the top of the first semi-finished product is welded through the second welding machine 200 to form a second semi-finished product.

Specifically, the first semi-finished product is placed on a second fixing mechanism 210, and two edges and four eighth fillets of the top of the first semi-finished product are welded by the second welding machine 200 to form the second semi-finished product. That is, after the first semi-finished product is placed on the second fixing mechanism 210, by starting the automatic control system of the second welding machine 200, the automatic control system drives the welding wheel disc of the second welding machine 200, so that the welding wheel disc is located above the first semi-finished product, and then the welding wheel disc is driven downward, so that the welding wheel disc is abutted against the first semi-finished product, and then the welding wheel disc is driven to move while being electrically welded. It is worth mentioning that, after a limit and two eighth fillets have been welded to the welding rim plate, weld the black region marked 702 in figure 10 promptly, reset the welding rim plate earlier, then drive second fixed establishment 210 and rotate, automatic control system drives the welding rim plate of second welding machine 200, make the welding rim plate be located first semi-manufactured goods top, then through down driving the welding rim plate, make the welding rim plate butt first semi-manufactured goods, then drive the welding rim plate and remove the limit and weld. I.e. the other side and the two eighth fillets are spot welded. And after electric welding is finished, forming a second semi-finished product.

And S3, placing the second semi-finished product on a third welding machine 300 for positioning, and welding the side edge of the second semi-finished product through the third welding machine 300 to form a third semi-finished product.

Specifically, the second semi-finished product is placed on a third fixing mechanism 310, and four sides and four eighth fillets on two sides of the second semi-finished product are welded by the third welding machine 300 to form the third semi-finished product. Further, the third fixing mechanism 310 is moved to the welding position of the third welding machine 300 by the second moving mechanism 320. That is, the second moving mechanism 320 is controlled by the automatic control system of the third welding machine 300, and the third fixing mechanism 310 is moved to a position where welding is performed by the second moving mechanism 320, and further, the third welding machine 300 has two welding sheaves, and when the second fixing mechanism 210 is located at the welding position, the two welding sheaves are located at both sides of the second fixing mechanism 210. Then control two welding wheel discs through control system and be close to and butt second semi-manufactured goods on the second fixed establishment 210, then control two welding wheel discs and from top to bottom carry out electric welding, just weld an limit and two eighth fillets to each side earlier, weld the black region marked by 703 in fig. 11 promptly, after the welding finishes, second moving mechanism 320 drives third fixed establishment 310 and continues to move for two welding wheel discs can weld the other limit and two eighth fillets of each side. And forming a third semi-finished product after welding.

S4, placing a front plate on a fourth welding machine 400, placing the third semi-finished product on the front plate, positioning the third semi-finished product and the front plate, sleeving the third semi-finished product into the front plate through pressing, and performing spot welding through the fourth welding machine 400 to preliminarily connect the third semi-finished product and the front plate to form a fourth semi-finished product.

Specifically, the front plate and the third semi-finished product are placed on a fourth fixing mechanism 410, the third semi-finished product is sleeved into the front plate by pressing, and then four edges are spot-welded, so that the third semi-finished product and the front plate are preliminarily connected to form the fourth semi-finished product. That is, the front plate is first placed on the fourth fixing mechanism 410 to be fixed, then the third semi-finished product is placed on the fourth fixing mechanism 410, the automatic control system of the fourth welding machine 400 is started, the automatic control system first controls the two positioning mechanisms to compress and position the position of the front plate from the periphery of the third semi-finished product, and then controls the pressing mechanism to press the third semi-finished product from top to bottom, so that the third semi-finished product can be partially pressed into the front plate to be connected with the front plate. It should be noted that spot welding is required after the connection is completed, the third semi-finished product and the front plate have four edges to be connected, and each edge has four points 704 to be spot welded, so that by sixteen welding heads on the fourth welding machine 400, eight welding heads are controlled to perform spot welding, and then the other eight welding heads are controlled to perform spot welding, that is, by two times of welding, the third semi-finished product and the front plate are connected to play a role in connection and fixation, thereby forming the fourth semi-finished product.

S5, the fourth semi-finished product is placed on a fifth welding machine 500 to be positioned, and two long sides of the fourth semi-finished product are welded through the fifth welding machine 500 to form a fifth semi-finished product.

Specifically, the fourth semi-finished product is placed on a fifth fixing mechanism 510, and then two long sides of the fourth semi-finished product connected to the front plate and four eighth fillets are welded to form the fifth semi-finished product. That is, the connection between the third semi-finished product and the front plate has two long sides and two short sides, the fifth welding machine 500 needs to weld the two long sides, that is, the automatic control system of the fifth welding machine 500 controls the welding wheel disc of the fifth welding machine 500 to approach and abut against one long side of the fourth semi-finished product, the welding is carried out by controlling the moving of the welding wheel disc edge, one long edge and two eighth fillets are welded firstly, namely, the black area marked by 705 in fig. 13 is welded, after the welding is finished, the welding wheel disc is driven to reset, then, the fifth fixing mechanism 510 is controlled by the automatic control system to rotate, so that the other unwelded side rotates to a side close to the welded wheel disc, and then the welding wheel disc is controlled to be close to and abutted against the other long edge, the welding is carried out by controlling the welding wheel disc edge to move and weld the other long edge and the other two one-eighth fillets. And forming a fifth semi-finished product after welding.

S6, the fifth semi-finished product is placed on a sixth welding machine 600 to be positioned, and two short sides of the fifth semi-finished product are welded through the sixth welding machine 600 to form a shell.

Specifically, the fifth semi-finished product is placed on a sixth fixing mechanism 610, and then two short edges connected with the front plate and four eighth fillets in the fifth semi-finished product are welded, so that the complete shell is finally formed. That is, two short sides connected between the third semi-finished product and the front plate need to be welded on the sixth welding machine 600. That is, the automatic control system of the sixth welding machine 600 controls the welding wheel disc of the sixth welding machine 600 to approach and abut against a short side of the fifth semi-finished product, the welding wheel disc is controlled to move and weld while welding, firstly, the short side and two eighth fillets are welded, namely, the black area marked by 706 in fig. 14 is welded, the welding wheel disc is driven to reset after the welding is finished, then the automatic control system controls the sixth fixing mechanism 610 to rotate, so that the other unwelded side rotates to one side close to the welding wheel disc, then the welding wheel disc is controlled to approach and abut against the other short side again, the welding wheel disc is controlled to move and weld while welding, the other short side and the other two eighth fillets are welded, and after the welding is finished, a shell of an oven is formed.

Therefore, the method for welding the shell of the oven has the advantages that the whole machining efficiency is high, the whole welding strength can be guaranteed, the welding firmness of each seam can be guaranteed, and the whole oven has the sealing and fixing effects. The problems of insecure welding and poor sealing performance are well avoided.

Example 1

A shell welding production method comprises the following specific steps:

s1, placing a U-shaped plate 700 and two side plates 800 on a first welding machine 100, respectively positioning the U-shaped plate 700 and the two side plates 800, and performing spot welding through the first welding machine 100 to preliminarily couple the U-shaped plate 700 and the two side plates 800 to form a first semi-finished product.

Specifically, the U-shaped plate 700 and the two side plates 800 are preliminarily coupled to form the first semi-finished product by placing the U-shaped plate 700 and the two side plates 800 on the first fixing mechanism 110, moving the first fixing mechanism 110 to the welding position of the first welding machine 100 by the first moving mechanism 120, and performing spot welding. Namely, the placing positions of the U-shaped plate 700 and the two side plates 800 are fixed by the first fixing mechanism 110, then the first moving mechanism 120 is controlled by the automatic control system of the first welding machine 100, the first fixing mechanism 110 is moved to the welding position by the first moving mechanism 120, and then the welding head is automatically controlled by the control system to weld the U-shaped plate 700 and the two side plates 800. Further, since each side plate 800 has three sides connected to the U-shaped plate 700, when welding, each side has four spot welding points 701, that is, the first welding machine 100 spot welds the U-shaped plate 700 and twenty-four points 701 on the two side plates 800, so that the U-shaped plate 700 is respectively connected to the two side plates 800 to perform the function of fixing the connection.

S2, the first semi-finished product is placed on a second welding machine 200 to be positioned, and the top of the first semi-finished product is welded through the second welding machine 200 to form a second semi-finished product.

Specifically, the first semi-finished product is placed on a second fixing mechanism 210, and two edges and four eighth fillets of the top of the first semi-finished product are welded by the second welding machine 200 to form the second semi-finished product. That is, after the first semi-finished product is placed on the second fixing mechanism 210, by starting the automatic control system of the second welding machine 200, the automatic control system drives the welding wheel disc of the second welding machine 200, so that the welding wheel disc is located above the first semi-finished product, and then the welding wheel disc is driven downward, so that the welding wheel disc is abutted against the first semi-finished product, and then the welding wheel disc is driven to move while being electrically welded. It is worth mentioning that, after a limit and two eighth fillets have been welded to the welding rim plate, weld the black region marked 702 in figure 10 promptly, reset the welding rim plate earlier, then drive second fixed establishment 210 and rotate, automatic control system drives the welding rim plate of second welding machine 200, make the welding rim plate be located first semi-manufactured goods top, then through down driving the welding rim plate, make the welding rim plate butt first semi-manufactured goods, then drive the welding rim plate and remove the limit and weld. I.e. the other side and the two eighth fillets are spot welded. And after electric welding is finished, forming a second semi-finished product.

And S3, placing the second semi-finished product on a third welding machine 300 for positioning, and welding the side edge of the second semi-finished product through the third welding machine 300 to form a third semi-finished product.

Specifically, the second semi-finished product is placed on a third fixing mechanism 310, and four sides and four eighth fillets on two sides of the second semi-finished product are welded by the third welding machine 300 to form the third semi-finished product. Further, the third fixing mechanism 310 is moved to the welding position of the third welding machine 300 by the second moving mechanism 320. That is, the second moving mechanism 320 is controlled by the automatic control system of the third welding machine 300, and the third fixing mechanism 310 is moved to a position where welding is performed by the second moving mechanism 320, and further, the third welding machine 300 has two welding sheaves, and when the second fixing mechanism 210 is located at the welding position, the two welding sheaves are located at both sides of the second fixing mechanism 210. Then control two welding wheel discs through control system and be close to and butt second semi-manufactured goods on the second fixed establishment 210, then control two welding wheel discs and from top to bottom carry out electric welding, just weld an limit and two eighth fillets to each side earlier, weld the black region marked by 703 in fig. 11 promptly, after the welding finishes, second moving mechanism 320 drives third fixed establishment 310 and continues to move for two welding wheel discs can weld the other limit and two eighth fillets of each side. And forming a third semi-finished product after welding.

S4, placing a front plate on a fourth welding machine 400, placing the third semi-finished product on the front plate, positioning the third semi-finished product and the front plate, sleeving the third semi-finished product into the front plate through pressing, and performing spot welding through the fourth welding machine 400 to preliminarily connect the third semi-finished product and the front plate to form a fourth semi-finished product.

Specifically, the front plate and the third semi-finished product are placed on a fourth fixing mechanism 410, the third semi-finished product is sleeved into the front plate by pressing, and then four edges are spot-welded, so that the third semi-finished product and the front plate are preliminarily connected to form the fourth semi-finished product. That is, the front plate is first placed on the fourth fixing mechanism 410 to be fixed, then the third semi-finished product is placed on the fourth fixing mechanism 410, the automatic control system of the fourth welding machine 400 is started, the automatic control system first controls the two positioning mechanisms to compress and position the position of the front plate from the periphery of the third semi-finished product, and then controls the pressing mechanism to press the third semi-finished product from top to bottom, so that the third semi-finished product can be partially pressed into the front plate to be connected with the front plate. It should be noted that spot welding is required after the connection is completed, the third semi-finished product and the front plate have four edges to be connected, and each edge has four points 704 to be spot welded, so that by sixteen welding heads on the fourth welding machine 400, eight welding heads are controlled to perform spot welding, and then the other eight welding heads are controlled to perform spot welding, that is, by two times of welding, the third semi-finished product and the front plate are connected to play a role in connection and fixation, thereby forming the fourth semi-finished product.

S5, the fourth semi-finished product is placed on a fifth welding machine 500 to be positioned, and two long sides of the fourth semi-finished product are welded through the fifth welding machine 500 to form a fifth semi-finished product.

Specifically, the fourth semi-finished product is placed on a fifth fixing mechanism 510, and then two long sides of the fourth semi-finished product connected to the front plate and four eighth fillets are welded to form the fifth semi-finished product. That is, the connection between the third semi-finished product and the front plate has two long sides and two short sides, the fifth welding machine 500 needs to weld the two long sides, that is, the automatic control system of the fifth welding machine 500 controls the welding wheel disc of the fifth welding machine 500 to approach and abut against one long side of the fourth semi-finished product, the welding is carried out by controlling the moving of the welding wheel disc edge, one long edge and two eighth fillets are welded firstly, namely, the black area marked by 705 in fig. 13 is welded, after the welding is finished, the welding wheel disc is driven to reset, then, the fifth fixing mechanism 510 is controlled by the automatic control system to rotate, so that the other unwelded side rotates to a side close to the welded wheel disc, and then the welding wheel disc is controlled to be close to and abutted against the other long edge, the welding is carried out by controlling the welding wheel disc edge to move and weld the other long edge and the other two one-eighth fillets. And forming a fifth semi-finished product after welding.

It is worth mentioning that, before the fourth semi-finished product is welded, the fourth semi-finished product is pressed by the first pressing mechanism 520, and then is welded. That is to say, because the fourth semi-manufactured goods that form only carries out spot welding and plays simple connection effect, consequently before the welding, need fix whole fourth semi-manufactured goods's position, just can be better weld two long limits, and after each long limit welding finishes, first hold-down mechanism 520 can all not compress tightly the fourth semi-manufactured goods earlier, ensures well that fifth fixed establishment 510 can drive the rotation of fourth semi-manufactured goods, just when just needing to begin to weld, just compresses tightly it.

S6, the fifth semi-finished product is placed on a sixth welding machine 600 to be positioned, and two short sides of the fifth semi-finished product are welded through the sixth welding machine 600 to form a shell.

Specifically, the fifth semi-finished product is placed on a sixth fixing mechanism 610, and then two short edges connected with the front plate and four eighth fillets in the fifth semi-finished product are welded, so that the complete shell is finally formed. That is, two short sides connected between the third semi-finished product and the front plate need to be welded on the sixth welding machine 600. That is, the automatic control system of the sixth welding machine 600 controls the welding wheel disc of the sixth welding machine 600 to approach and abut against a short side of the fifth semi-finished product, the welding wheel disc is controlled to move and weld while welding, firstly, the short side and two eighth fillets are welded, namely, the black area marked by 706 in fig. 14 is welded, the welding wheel disc is driven to reset after the welding is finished, then the automatic control system controls the sixth fixing mechanism 610 to rotate, so that the other unwelded side rotates to one side close to the welding wheel disc, then the welding wheel disc is controlled to approach and abut against the other short side again, the welding wheel disc is controlled to move and weld while welding, the other short side and the other two eighth fillets are welded, and after the welding is finished, a shell of an oven is formed.

Therefore, the method for welding the shell of the oven has the advantages that the whole machining efficiency is high, the whole welding strength can be guaranteed, the welding firmness of each seam can be guaranteed, and the whole oven has the sealing and fixing effects. The problems of insecure welding and poor sealing performance are well avoided.

Example 2

A shell welding production method comprises the following specific steps:

s1, placing a U-shaped plate 700 and two side plates 800 on a first welding machine 100, respectively positioning the U-shaped plate 700 and the two side plates 800, and performing spot welding through the first welding machine 100 to preliminarily couple the U-shaped plate 700 and the two side plates 800 to form a first semi-finished product.

Specifically, the U-shaped plate 700 and the two side plates 800 are preliminarily coupled to form the first semi-finished product by placing the U-shaped plate 700 and the two side plates 800 on the first fixing mechanism 110, moving the first fixing mechanism 110 to the welding position of the first welding machine 100 by the first moving mechanism 120, and performing spot welding. Namely, the placing positions of the U-shaped plate 700 and the two side plates 800 are fixed by the first fixing mechanism 110, then the first moving mechanism 120 is controlled by the automatic control system of the first welding machine 100, the first fixing mechanism 110 is moved to the welding position by the first moving mechanism 120, and then the welding head is automatically controlled by the control system to weld the U-shaped plate 700 and the two side plates 800. Further, since each side plate 800 has three sides connected to the U-shaped plate 700, when welding, each side has four spot welding points 701, that is, the first welding machine 100 spot welds the U-shaped plate 700 and twenty-four points 701 on the two side plates 800, so that the U-shaped plate 700 is respectively connected to the two side plates 800 to perform the function of fixing the connection.

S2, the first semi-finished product is placed on a second welding machine 200 to be positioned, and the top of the first semi-finished product is welded through the second welding machine 200 to form a second semi-finished product.

Specifically, the first semi-finished product is placed on a second fixing mechanism 210, and two edges and four eighth fillets of the top of the first semi-finished product are welded by the second welding machine 200 to form the second semi-finished product. That is, after the first semi-finished product is placed on the second fixing mechanism 210, by starting the automatic control system of the second welding machine 200, the automatic control system drives the welding wheel disc of the second welding machine 200, so that the welding wheel disc is located above the first semi-finished product, and then the welding wheel disc is driven downward, so that the welding wheel disc is abutted against the first semi-finished product, and then the welding wheel disc is driven to move while being electrically welded. It is worth mentioning that, after a limit and two eighth fillets have been welded to the welding rim plate, weld the black region marked 702 in figure 10 promptly, reset the welding rim plate earlier, then drive second fixed establishment 210 and rotate, automatic control system drives the welding rim plate of second welding machine 200, make the welding rim plate be located first semi-manufactured goods top, then through down driving the welding rim plate, make the welding rim plate butt first semi-manufactured goods, then drive the welding rim plate and remove the limit and weld. I.e. the other side and the two eighth fillets are spot welded. And after electric welding is finished, forming a second semi-finished product.

And S3, placing the second semi-finished product on a third welding machine 300 for positioning, and welding the side edge of the second semi-finished product through the third welding machine 300 to form a third semi-finished product.

Specifically, the second semi-finished product is placed on a third fixing mechanism 310, and four sides and four eighth fillets on two sides of the second semi-finished product are welded by the third welding machine 300 to form the third semi-finished product. Further, the third fixing mechanism 310 is moved to the welding position of the third welding machine 300 by the second moving mechanism 320. That is, the second moving mechanism 320 is controlled by the automatic control system of the third welding machine 300, and the third fixing mechanism 310 is moved to a position where welding is performed by the second moving mechanism 320, and further, the third welding machine 300 has two welding sheaves, and when the second fixing mechanism 210 is located at the welding position, the two welding sheaves are located at both sides of the second fixing mechanism 210. Then control two welding wheel discs through control system and be close to and butt second semi-manufactured goods on the second fixed establishment 210, then control two welding wheel discs and from top to bottom carry out electric welding, just weld an limit and two eighth fillets to each side earlier, weld the black region marked by 703 in fig. 11 promptly, after the welding finishes, second moving mechanism 320 drives third fixed establishment 310 and continues to move for two welding wheel discs can weld the other limit and two eighth fillets of each side. And forming a third semi-finished product after welding.

S4, placing a front plate on a fourth welding machine 400, placing the third semi-finished product on the front plate, positioning the third semi-finished product and the front plate, sleeving the third semi-finished product into the front plate through pressing, and performing spot welding through the fourth welding machine 400 to preliminarily connect the third semi-finished product and the front plate to form a fourth semi-finished product.

Specifically, the front plate and the third semi-finished product are placed on a fourth fixing mechanism 410, the third semi-finished product is sleeved into the front plate by pressing, and then four edges are spot-welded, so that the third semi-finished product and the front plate are preliminarily connected to form the fourth semi-finished product. That is, the front plate is first placed on the fourth fixing mechanism 410 to be fixed, then the third semi-finished product is placed on the fourth fixing mechanism 410, the automatic control system of the fourth welding machine 400 is started, the automatic control system first controls the two positioning mechanisms to compress and position the position of the front plate from the periphery of the third semi-finished product, and then controls the pressing mechanism to press the third semi-finished product from top to bottom, so that the third semi-finished product can be partially pressed into the front plate to be connected with the front plate. It should be noted that spot welding is required after the connection is completed, the third semi-finished product and the front plate have four edges to be connected, and each edge has four points 704 to be spot welded, so that by sixteen welding heads on the fourth welding machine 400, eight welding heads are controlled to perform spot welding, and then the other eight welding heads are controlled to perform spot welding, that is, by two times of welding, the third semi-finished product and the front plate are connected to play a role in connection and fixation, thereby forming the fourth semi-finished product.

S5, the fourth semi-finished product is placed on a fifth welding machine 500 to be positioned, and two long sides of the fourth semi-finished product are welded through the fifth welding machine 500 to form a fifth semi-finished product.

Specifically, the fourth semi-finished product is placed on a fifth fixing mechanism 510, and then two long sides of the fourth semi-finished product connected to the front plate and four eighth fillets are welded to form the fifth semi-finished product. That is, the connection between the third semi-finished product and the front plate has two long sides and two short sides, the fifth welding machine 500 needs to weld the two long sides, that is, the automatic control system of the fifth welding machine 500 controls the welding wheel disc of the fifth welding machine 500 to approach and abut against one long side of the fourth semi-finished product, the welding is carried out by controlling the moving of the welding wheel disc edge, one long edge and two eighth fillets are welded firstly, namely, the black area marked by 705 in fig. 13 is welded, after the welding is finished, the welding wheel disc is driven to reset, then, the fifth fixing mechanism 510 is controlled by the automatic control system to rotate, so that the other unwelded side rotates to a side close to the welded wheel disc, and then the welding wheel disc is controlled to be close to and abutted against the other long edge, the welding is carried out by controlling the welding wheel disc edge to move and weld the other long edge and the other two one-eighth fillets. And forming a fifth semi-finished product after welding.

S6, the fifth semi-finished product is placed on a sixth welding machine 600 to be positioned, and two short sides of the fifth semi-finished product are welded through the sixth welding machine 600 to form a shell.

Specifically, the fifth semi-finished product is placed on a sixth fixing mechanism 610, and then two short edges connected with the front plate and four eighth fillets in the fifth semi-finished product are welded, so that the complete shell is finally formed. That is, two short sides connected between the third semi-finished product and the front plate need to be welded on the sixth welding machine 600. That is, the automatic control system of the sixth welding machine 600 controls the welding wheel disc of the sixth welding machine 600 to approach and abut against a short side of the fifth semi-finished product, the welding wheel disc is controlled to move and weld while welding, firstly, the short side and two eighth fillets are welded, namely, the black area marked by 706 in fig. 14 is welded, the welding wheel disc is driven to reset after the welding is finished, then the automatic control system controls the sixth fixing mechanism 610 to rotate, so that the other unwelded side rotates to one side close to the welding wheel disc, then the welding wheel disc is controlled to approach and abut against the other short side again, the welding wheel disc is controlled to move and weld while welding, the other short side and the other two eighth fillets are welded, and after the welding is finished, a shell of an oven is formed.

It is worth mentioning that, before the fifth semi-finished product is welded, the fifth semi-finished product is pressed by the second pressing mechanism 620, and then the fifth semi-finished product is welded. That is to say, in order to ensure that the welding does not take place the aversion, need fix the position of whole fifth semi-manufactured goods, just can be better weld two minor faces, and after each minor face welding finishes, second hold-down mechanism 620 can all not compress tightly fourth semi-manufactured goods earlier, ensures well that sixth fixed establishment 610 can drive the fifth semi-manufactured goods rotatory, just only when needs begin to weld, just compresses tightly it.

Therefore, the method for welding the shell of the oven has the advantages that the whole machining efficiency is high, the whole welding strength can be guaranteed, the welding firmness of each seam can be guaranteed, and the whole oven has the sealing and fixing effects. The problems of insecure welding and poor sealing performance are well avoided.

In summary, the above embodiments are not intended to be limiting embodiments of the present invention, and modifications and equivalent variations made by those skilled in the art based on the spirit of the present invention are within the technical scope of the present invention.