CN115889614A - Sheet metal part forming and welding device and forming and welding method - Google Patents

Abstract

The invention relates to a sheet metal part forming and welding device and a forming and welding method. This sheet metal component shaping welding set includes: the die comprises an upper die base and a lower die base which are oppositely arranged, wherein a bending punch is arranged on the upper die base; a bending station and a bending female die are arranged on the lower die base; the bending station is opposite to the bending punch; the bending female dies are arranged on four sides of the bending station and are higher than the plane where the bending station is located. The scheme that this application provided, in the processing production process of square box class sheet metal component, can once bend into square box class sheet metal component with sheet metal fast accurately, after the shaping of bending, can carry out the multiple spot welding simultaneously, effectively reduce the manual strength, practice thrift the cost, improve production efficiency for automatic process, and through will bend into the shaping and spot welding cooperation setting, space and time have been saved greatly.

Description

Sheet metal part forming and welding device and forming and welding method

Technical Field

The application relates to the technical field of sheet metal part machining, in particular to a sheet metal part forming and welding device and a sheet metal part forming and welding method.

Background

The sheet metal is a comprehensive cold processing technology for metal sheets (parts), and comprises shearing, punching/cutting/compounding, folding, welding, riveting, splicing, forming and the like; the product processed by the sheet metal process is called a sheet metal part.

At present, the precision sheet metal part manufacturing procedure mainly includes: blanking, bending and forming, spot welding, assembling, packaging and the like; specifically, after blanking of the metal sheets (parts) is completed, the metal sheets (parts) are bent and molded according to size requirements, then the overlapped welding positions of the metal sheets (parts) are welded in a spot welding mode, and subsequent assembling, packaging and the like are performed after welding is completed, so that production of the sheet metal parts is completed.

In the process of sheet metal component processing production, because square box (the pentahedron of a few one face of square body) class sheet metal component structure itself is complicated, need bend a planar sheet metal and increase four sides if bend to need weld in the coincidence welding department of four sides that newly increase, among the prior art, the welding mode has two kinds: firstly, spot welding is performed through manual operation, specifically, when a worker uses spot welding equipment to process, the positions of coincident welding positions (namely 4 corners of a square box) of 4 side surfaces of a metal sheet (part) need to be welded, after 1 corner is welded, the metal sheet (part) needs to be rotated to the position of the next corner to perform spot welding again, 4 times of repeated operation is needed to complete welding of a sheet metal part, and the processing mode causes that the labor intensity of the worker is high, the efficiency is low, and the welding quality consistency is poor. In order to reduce the labor intensity of the workers, the second mode can also be adopted: replace manual operation by arm with the rotational positioning frock and realize spot welding, it is concrete, the arm welds the position at 4 angles of sheet metal (part), every welding accomplishes 1 angle after, the rotational positioning frock is automatic rotates the position at next angle with sheet metal (part), also need 4 times of repeated operation can accomplish the welding of a sheet metal component, and this processing mode need put into the rotational positioning frock of arm looks adaptation, the input cost is higher, the equipment debugging degree of difficulty is big, and is inefficient.

Therefore, the sheet metal part forming and welding device is urgently needed to be designed, in the square box type sheet metal part machining and production process, a metal sheet (part) can be quickly and accurately bent into the square box type sheet metal part at one time, after the sheet metal part is bent and formed, multipoint spot welding can be simultaneously carried out, the labor intensity is effectively reduced, the cost is saved, the space and the time are saved, the production efficiency is improved, and the automation process is accelerated.

Disclosure of Invention

In order to overcome the problems in the related art, the sheet metal part forming and welding device and the sheet metal part forming and welding method can be used for quickly and accurately bending a metal sheet into square box-type sheet metal parts at one time, and after the sheet metal parts are bent and formed, multipoint spot welding can be carried out at the same time, so that the labor intensity is effectively reduced, the cost is saved, the space and the time are saved, the production efficiency is improved, and the automation process is accelerated.

The application provides a sheet metal part forming and welding device in a first aspect, which comprises an upper die holder and a lower die holder which are oppositely arranged, wherein a bending punch is arranged on the upper die holder; a bending station and a bending female die are arranged on the lower die base; the bending station is opposite to the bending punch; the bending female dies are arranged on four sides of the bending station and are higher than the plane where the bending station is located.

In one embodiment, the bending female die comprises a first bending sub-die, a second bending sub-die, a third bending sub-die and a fourth bending sub-die; the first bending sub-die and the second bending sub-die are oppositely arranged at two sides of the bending station, and the length direction of the first bending sub-die is parallel to that of the second bending sub-die; the third bending sub-die and the fourth bending sub-die are oppositely arranged at two sides of the bending station, and the length direction of the third bending sub-die is parallel to that of the fourth bending sub-die; the first bending sub-die and the second bending sub-die are perpendicular to the third bending sub-die and the fourth bending sub-die in length direction.

In one embodiment, the heights of the first bending sub-die and the second bending sub-die are greater than the heights of the third bending sub-die and the fourth bending sub-die.

In one embodiment, a spot welding mechanism is further included; the upper die holder also comprises an upper electrode fixing block; the lower die holder also comprises a lower electrode fixing block; the upper electrode fixing block and the lower electrode fixing block are respectively connected with the spot welding mechanism.

In one embodiment, the electrode holder further comprises a wedge mechanism for moving the lower electrode fixing block.

In one embodiment, the cam mechanism comprises a cam and a slider movement assembly; the inclined wedge is arranged on the upper die base; the sliding block moving assembly is arranged on the lower die base relatively; the lower electrode fixing block is arranged on the sliding block moving assembly.

In one embodiment, the slide block moving assembly comprises a linear slide rail, a stop block, a pull rod and a spring; the stop block is fixedly arranged at one end of the linear slide rail; the spring is sleeved on the pull rod; the pull rod penetrates through the check block to be connected with the sliding block on the linear sliding rail; the sliding block is connected with the lower electrode fixing block.

In one embodiment, a guide sleeve is further arranged on the upper die holder; and the lower die base is also provided with a guide pillar matched with the guide sleeve.

In one embodiment, a limiting block is arranged on the upper die holder and/or the lower die holder, and the limiting block is used for limiting the position of the upper die holder when the upper die holder moves towards the lower die holder.

In one embodiment, the lower die holder is further provided with a positioning block and/or a positioning column; the positioning block and/or the positioning column are/is arranged on the periphery of the bending station.

The second aspect of the application provides a sheet metal part forming and welding method, which is realized based on the sheet metal part forming and welding device, and comprises the following specific steps:

s1, moving an upper die base towards a lower die base, and mutually matching a bending punch with a bending female die to bend and form a metal sheet;

s2, the wedge mechanism drives the lower electrode fixing block to move to the overlapped welding position of the metal sheets;

s3, butting the upper electrode and the lower electrode, and performing spot welding operation on the overlapped welding position of the metal sheets;

s4, after welding is completed, the upper die base moves towards a direction far away from the lower die base;

and S5, repeating the steps S1-S4.

The technical scheme provided by the application can comprise the following beneficial effects: when square box type sheet metal parts are generated in machining, after blanking of metal sheets (parts) is completed, the metal sheets (parts) are placed on a bending station on a lower die base, and due to the fact that a bending die is arranged on four sides of the bending station and higher than a plane where the bending station is located, the bending die and the plane where the bending station is located can form a groove, four sides of the metal sheets (parts) are placed on the bending die, the middle area of the metal sheets (parts) belongs to a suspended state, at the moment, an upper die base moves towards the lower die base, a bending punch moves towards the bending station, when the bending punch contacts with the metal sheets (parts), downward pressure can be given to the metal sheets (parts), meanwhile, the bending die can give upward reaction force to the metal sheets (parts), under the mutual matching of the two acting forces, 90 degrees of the four sides of the metal sheets (parts) can be bent, four sides are obtained, the mode that four sides are bent in sequence in the prior art can be obtained, through the manual scheme of the application, the metal sheets (parts) can be simultaneously, the four sides of the metal sheets (parts) can be bent at the same time, 90 degrees of the four sides can be obtained, the sheet metal sheets (parts) can be quickly bent, the sheet metal sheets can be bent, and the efficiency can be effectively reduced, and the sheet forming efficiency can be effectively reduced.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The foregoing and other objects, features and advantages of the application will be apparent from the following more particular descriptions of exemplary embodiments of the application, as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the application.

Fig. 1 is a schematic structural diagram of a sheet metal part forming and welding device shown in an embodiment of the application.

Reference numerals are as follows:

1. an upper die holder; 11. bending the punch; 12. an upper electrode fixing block; 13. a guide sleeve; 2. a lower die holder; 21. bending a station; 23. a lower electrode fixing block; 24. a guide post; 25. a limiting block; 28. a backing plate; 3. a spot welding mechanism; 31. a switch knob; 32. a current adjusting knob; 33. a time adjustment knob; 34. connecting wires; 41. a wedge; 411. a wedge fixing block; 421. a linear slide rail; 422. a stopper; 423. a pull rod; 424. a spring; 425. a slide block.

Detailed Description

Preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present application have been illustrated in the accompanying drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

At present, in the process of sheet metal part processing production, because square box (i.e. pentahedron with one less square body) type sheet metal parts are complex in structure, if a metal sheet of one surface needs to be bent to increase four surfaces during bending, the general operation is to sequentially bend to increase four surfaces, and four times of bending are needed, so that the mode is not only high in manual labor intensity, but also low in efficiency.

To the above problem, the embodiment of the application provides a sheet metal component shaping welding set, can bend 90 degrees simultaneously with the four sides of sheet metal (part), one shot forming to bend into square box class sheet metal component with sheet metal once fast accurately, effectively improved efficiency, reduced artificial intensity of labour, saved the time.

The technical solutions of the embodiments of the present application are described in detail below with reference to the accompanying drawings.

Example one

Referring to fig. 1, fig. 1 is a schematic structural diagram of a sheet metal part forming and welding device according to an embodiment of the present application.

The utility model provides a sheet metal component shaping welding set, including relative upper die base 1 and the die holder 2 that sets up.

The upper die holder 1 is provided with a bending punch 11, the bending punch 11 is of a square structure, the size of the bending punch 11 is just consistent with the bottom surface of a finally formed square box type sheet metal part, and the bending punch is used for positioning and pressing the sheet metal part (part) to form the bottom surface of the sheet metal part when the bending punch 11 contacts the sheet metal part (part); a bending station 21 and a bending female die are arranged on the lower die holder 2, and the bending station 21 is arranged opposite to the bending punch 11 and used for placing a metal sheet (part); specifically, a base plate 28 is arranged on the lower die holder 2, the base plate 28 is a flat plate parallel to a horizontal plane, and a bending station 21 is arranged on the base plate 28 to ensure that the bottom surface of the bent sheet metal part can be parallel to the horizontal plane; the bending female die is arranged on four sides of the bending station 21 and is higher than the plane where the bending station 21 is located, so that the bending female die and the plane where the bending station 21 is located can form a groove; in order to facilitate rapid positioning and placement of the metal sheet (part), the lower die base 2 is further provided with a positioning block and/or a positioning column, and the positioning block and/or the positioning column are arranged on the periphery of the bending station 21.

The bending female die comprises a first bending sub-die and a second bending sub-die which are consistent in structure, and a third bending sub-die and a fourth bending sub-die which are consistent in structure; the first bending sub-die and the second bending sub-die are oppositely arranged at two sides of the bending station 21, and the length direction of the first bending sub-die is parallel to that of the second bending sub-die; the third bending sub-die and the fourth bending sub-die are oppositely arranged at two sides of the bending station 21, and the length direction of the third bending sub-die is parallel to that of the fourth bending sub-die; the first bending sub-die and the second bending sub-die are perpendicular to the third bending sub-die and the fourth bending sub-die in length direction, so that four newly added side faces after bending and the original bottom face can enclose a square box (namely a pentahedron with one surface less than a rectangular body) type sheet metal part.

Because the metal sheet (part) is provided with the connecting folding edges for welding (namely the overlapped welding part of the formed metal sheet), the connecting folding edges are arranged on the third bending sub-die and the fourth bending sub-die; in order to enable the metal sheets (parts) to be positioned on the outer side after being bent and formed, the connecting folding edges are positioned on the outer side, and the heights of the first bending sub-die and the second bending sub-die are larger than the heights of the third bending sub-die and the fourth bending sub-die, so that after the metal sheets (parts) are pressed down by the bending punch 11, the first bending sub-die and the second bending sub-die can exert a reaction force on the metal sheets (parts) at first, so that the metal sheets (parts) positioned on the first bending sub-die and the second bending sub-die are bent upwards at first, the bending punch 11 continues to press the metal sheets (parts) downwards until the metal sheets (parts) are abutted against the third bending sub-die and the fourth bending sub-die, at the moment, the metal sheets (parts) are bent upwards under the reaction force exerted by the third bending sub-die and the fourth bending sub-die, the bending sequence of the metal sheets is adjusted by setting different heights of the bending die, so that the connecting folding edges can be positioned on the outer side, the trend of the adjacent side faces towards the outside is blocked, and the metal sheets of the square box type parts are improved in stability. The outer side is a side away from the center line of the metal thin plate.

In order to ensure the accuracy when the upper die holder 1 moves (i.e. moves downwards) towards the lower die holder 2, a guide sleeve 13 is further arranged on the upper die holder 1; the lower die holder 2 is further provided with a guide post 24 matched with the guide sleeve 13, and when the upper die holder 1 moves towards the lower die holder 2, the guide sleeve 13 is sleeved on the guide post 24. In order to prevent the upper die holder 1 from being damaged due to excessive downward movement, a limiting block 25 is arranged on the upper die holder 1 and/or the lower die holder 2, and the limiting block 25 is used for limiting the position of the upper die holder 1 when the upper die holder 1 moves towards the lower die holder 2.

In this embodiment one, when processing and generating square box class sheet metal component, after sheet metal (part) unloading is accomplished, place sheet metal (part) on the station of bending on the die holder, because the die setting of bending is in the four sides of the station of bending, and be higher than the plane that the station of bending was located, so bend the die with the plane that the station of bending was located can form a recess, make the four sides of sheet metal (part) are placed on the die of bending, the middle zone of sheet metal (part) belongs to unsettled state, at this moment, the upper die base court the die holder motion drives the drift court of bending the station motion of bending, when the drift contact sheet metal (part) of bending, can give a downward pressure of sheet metal (part), simultaneously, the die of bending can give an ascending reaction force of sheet metal (part), under the mutually supporting of two effort, can make the four sides of sheet metal (part) bend 90 degrees, obtain four sides, compare the mode of bending in proper order in the prior art and obtain the mode of each side through the scheme of this application, can be with the sheet metal (part) the side of bending 90, thereby the efficiency of bending is reduced effectively once the sheet metal, and the side of bending has been reduced the efficiency.

Example two

At present, in square box class sheet metal component production and processing, after sheet metal (part) bending shaping, need carry out spot welding welded fastening with the coincidence welding department of four sides, among the prior art, no matter be manual welding or weld through arm and rotation positioning frock matched with mode, sheet metal (part) after all needing bending shaping rotates 4 times to divide 4 times welding, at this in-process, the step is loaded down with trivial details, inefficiency, be unfavorable for automated production.

In order to solve the above problems, the present application proposes a corresponding solution, please refer to fig. 1, which specifically includes:

on the basis of the structure of the first embodiment, the upper die holder 1 further comprises an upper electrode fixing block 12, and the lower die holder 2 further comprises a lower electrode fixing block 23; the upper electrode is fixed at the corner of the bending punch 11 through the upper electrode fixing block 12, so that after the metal sheet is bent and formed, the upper electrode can be in contact with the inner side of the superposition welding position of the metal sheet; the lower electrode fixing block 23 is oppositely arranged at the outer side of the overlapped welding position and used for fixing a lower electrode, in order to prevent potential safety hazard caused by electrode electric leakage, insulating plates are respectively arranged on the upper electrode fixing block 12 and the lower electrode fixing block 23, and the insulating plates are made of insulating materials.

The sheet metal part forming and welding device further comprises a wedge mechanism and a spot welding mechanism 3, wherein the wedge mechanism is used for moving the lower electrode fixing block 23; specifically, the wedge mechanism comprises a wedge 41 and a slider moving assembly; the inclined wedge 41 is arranged on the upper die holder 1; the sliding block moving assembly is oppositely arranged on the lower die holder 2, and the lower electrode fixing block 23 is arranged on the sliding block moving assembly; specifically, the inclined wedge 41 is fixed on the upper die holder 1 through an inclined wedge fixing block 411, and the slider moving assembly comprises a linear slide rail 421, a stop block 422, a pull rod 423 and a spring 424; the linear slide rail 421 is arranged on the backing plate 28, and the stopper 422 is fixedly arranged at one end of the linear slide rail 421; the spring 424 is sleeved on the pull rod 423; the pull rod 423 penetrates through the spring 424 and then penetrates through the stopper 422 to be connected with the slide block 425 on the linear slide rail 421; the slide block 425 is connected with the lower electrode fixing block 23; when the upper die holder 1 drives the wedge 41 to move towards the lower die holder 2, the wedge 41 is inserted between the baffle and the slide block 425, and the baffle is fixed, so that the slide block 425 drives the lower electrode fixing block 23 to move towards the inner side, the lower electrode fixing block 23 is moved to the outer side of the overlapped welding position of the metal sheets (parts), and the lower electrode can be contacted with the outer side of the overlapped welding position (namely the welding point position).

When the wedge 41 is inserted between the baffle and the slide block 425, the slide block 425 drives the pull rod 423 to move towards the inner side synchronously, the spring 424 is compressed under the movement of the pull rod 423, when the wedge 41 is driven by the upper die holder 1 to move towards the direction away from the lower die holder 2, the pull rod 423 moves towards the outer side under the resilience force of the spring 424, and drives the slide block 425 to move towards the outer side synchronously until the pull rod 423 and the slide block 425 return to the original positions.

The spot welding mechanism 3 comprises a control knob and a connecting wire 34; the control knob comprises a switch knob 31, a current adjusting knob 32 and a time adjusting knob 33, the switch knob 31 is used for controlling the start and stop of the spot welding mechanism 3, and the current adjusting knob 32 and the time adjusting knob 33 are respectively used for adjusting the current parameter and the time parameter of the spot welding mechanism 3; the number of the connecting wires 34 is 2, the upper electrode fixing block 12 and the lower electrode fixing block 23 are respectively connected with the spot welding mechanism 3 through the connecting wires 34, and more specifically, the upper electrode and the lower electrode are respectively connected with the spot welding mechanism 3 through the connecting wires 34.

In order to perform spot welding operation on the formed square box type metal thin plate (part) synchronously, 4 upper electrode fixing blocks 12, 4 lower electrode fixing blocks 23, 4 wedge mechanisms and 4 spot welding mechanisms are respectively arranged, and the specific arrangement manner is as described above, and is not described again here.

The outer side is a side away from the position of the sheet metal centerline, and the inner side is a side toward the position of the sheet metal centerline.

In the embodiment of the application, after a metal sheet (part) is bent and formed, the metal sheet (part) is spot-welded and fixed by a resistance spot welding technology, specifically, an upper die base drives an upper electrode fixing plate to move towards a lower die base, after the metal sheet (part) is formed, the upper electrode is just in contact with the inner side (namely, welding point) of a superposition welding position of the metal sheet, a lower electrode is in contact with the outer side (namely, welding point) of the superposition welding position under the driving of a wedge mechanism, and after the upper electrode is in butt joint with the lower electrode, the superposition welding position is welded and fixed by resistance heat generated when current flows through the superposition welding position; by adopting a resistance spot welding technology, 4 upper electrode fixing blocks, 4 lower electrode fixing blocks, 4 wedge mechanisms and 4 spot welding mechanisms can be arranged respectively, so that the overlapped welding positions of the metal sheets (parts) can be synchronously subjected to spot welding, the efficiency is greatly improved, the metal sheets (parts) do not need to be rotated, and the labor intensity of workers is reduced; moreover, the bending forming and welding of the metal sheet (part) are combined, so that the space and time can be effectively saved, the cost can be reduced, and the process of automatic production is further accelerated.

EXAMPLE III

The application also provides a sheet metal part forming and welding method, which is realized based on the sheet metal part forming and welding device and comprises the following specific steps:

s1, moving an upper die base towards a lower die base, and mutually matching a bending punch with a bending female die to bend and form a metal sheet;

s2, driving the lower electrode fixing block to move to a superposition welding position of the metal sheet by the wedge mechanism;

s3, butting the upper electrode and the lower electrode, and performing spot welding operation on the overlapped welding position of the metal sheets;

s4, after welding is completed, the upper die holder moves towards the direction far away from the lower die holder;

and S5, repeating the steps S1-S4.

Before the step S1, a metal sheet (part) is placed on the bending station 21 by a worker or a manipulator, the power supply and spot welding mechanism 3 is turned on, the current adjusting knob 32 and the time adjusting knob 33 are adjusted to appropriate parameters, then the upper die holder 1 moves (i.e., moves downward) toward the lower die holder 2, the bending punch 11 continues to move downward after contacting with the metal sheet (part), pressure is applied to the metal sheet downward, the first bending sub-die and the second bending sub-die first give a reaction force to the metal sheet, so that the metal sheet is bent upward by 90 degrees to form two side surfaces, then along with the downward movement of the metal sheet (part), the third bending sub-die and the fourth bending sub-die give a reaction force to the metal sheet, and then form two side surfaces, the surface formed by the bending punch 11 is a bottom surface until being blocked by the limiting block 25, the upper die holder 1 stops operating, and at this time, the metal sheet is integrally bent into a square box-like sheet metal part shape, and the upper electrode is located on the inner side of the overlapped welding position of the metal sheet.

In step S2, when the upper die holder 1 moves (i.e., moves downward) toward the lower die holder 2, the wedge 41 is synchronously driven to move downward until the wedge 41 is inserted between the baffle and the slider 425, and the slider 425 is pushed to move toward the inner side, so as to drive the lower pull rod 423 and the motor fixing block to move toward the inner side, so that the lower electrode can contact with the outer side of the overlapped welding position of the metal sheets and is located at a position facing the upper electrode, and at this time, the spring 424 is in a compressed state.

In step S3, after the upper electrode and the lower electrode are butted, spot welding is performed on the overlapped and welded portion of the metal sheets sandwiched therebetween by the upper electrode and the lower electrode to form a weld spot.

In step S4, after the welding is completed, the spot welding mechanism 3 is closed, the upper die holder 1 moves in the direction away from the lower die holder 2 (i.e., moves upward), the wedge 41 and the bending punch 11 are driven to move upward, the spring 424 rebounds and resets to drive the pull rod 423, the slider 425 and the lower electrode fixing block 23 to move outward, the lower electrode and the metal sheet overlap welding position are disconnected, the upper die holder 1 and the wedge mechanism recover to the initial position, the metal sheet is taken out through a worker or a manipulator, and the square box type sheet metal part is processed.

In the embodiment of the application, the bending forming process and the welding process of the metal sheet (part) are combined, the whole process can be carried out without the participation of workers or the workers only need to place or take out the metal sheet (part), the labor intensity of the workers is greatly reduced, the space and the time can be effectively saved, the cost is reduced, and the process of automatic production is further accelerated.

With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.

The aspects of the present application have been described in detail hereinabove with reference to the accompanying drawings. In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments. Those skilled in the art should also appreciate that acts and modules referred to in the specification are not necessarily required in the present application. In addition, it can be understood that the steps in the method of the embodiment of the present application may be sequentially adjusted, combined, and deleted according to actual needs, and the modules in the device of the embodiment of the present application may be combined, divided, and deleted according to actual needs.

The foregoing description of the embodiments of the present application has been presented for purposes of illustration and description and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or improvements to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims (11)

1. The utility model provides a sheet metal component shaping welding set, includes relative upper die base (1) and die holder (2) that set up, its characterized in that:

a bending punch (11) is arranged on the upper die holder (1);

a bending station (21) and a bending female die are arranged on the lower die holder (2);

the bending station (21) is opposite to the bending punch (11);

the bending female die is arranged on four sides of the bending station (21) and is higher than a plane where the bending station (21) is located.

2. The sheet metal component forming and welding device of claim 1, wherein:

the bending female die comprises a first bending sub-die, a second bending sub-die, a third bending sub-die and a fourth bending sub-die;

the first bending sub-die and the second bending sub-die are oppositely arranged at two sides of the bending station (21), and the length direction of the first bending sub-die is parallel to that of the second bending sub-die;

the third bending sub-die and the fourth bending sub-die are oppositely arranged at two sides of the bending station (21), and the length direction of the third bending sub-die is parallel to that of the fourth bending sub-die;

the first bending sub-die and the second bending sub-die are perpendicular to the third bending sub-die and the fourth bending sub-die in length direction.

3. The sheet metal component forming and welding device of claim 2, wherein:

the heights of the first bending sub-die and the second bending sub-die are greater than the heights of the third bending sub-die and the fourth bending sub-die.

4. The sheet metal component forming and welding device of claim 1, wherein: the spot welding device also comprises a spot welding mechanism (3);

the upper die holder (1) also comprises an upper electrode fixing block (12);

the lower die holder (2) also comprises a lower electrode fixing block (23);

the upper electrode fixing block (12) and the lower electrode fixing block (23) are respectively connected with the spot welding mechanism (3).

5. The sheet metal component forming and welding device of claim 4, wherein:

the electrode fixing device further comprises a wedge mechanism, and the wedge mechanism is used for moving the lower electrode fixing block (23).

6. The sheet metal component forming and welding device of claim 5, wherein:

the wedge mechanism comprises a wedge (41) and a sliding block moving assembly;

the inclined wedge (41) is arranged on the upper die holder (1);

the sliding block moving assembly is arranged on the lower die base (2) relatively;

the lower electrode fixing block (23) is arranged on the sliding block moving assembly.

7. The sheet metal component forming and welding device of claim 6, wherein:

the sliding block moving assembly comprises a linear sliding rail (421), a stop block (422), a pull rod (423) and a spring (424);

the stop block (422) is fixedly arranged at one end of the linear slide rail (421);

the spring (424) is sleeved on the pull rod (423);

the pull rod (423) penetrates through the stop block (422) to be connected with a sliding block (425) on the linear sliding rail (421);

the sliding block (425) is connected with the lower electrode fixing block (23).

8. The sheet metal component forming and welding device of claim 1, wherein:

the upper die holder (1) is also provided with a guide sleeve (13);

and a guide post (24) matched with the guide sleeve (13) is also arranged on the lower die holder (2).

9. The sheet metal component forming and welding device of claim 1, wherein:

and the upper die holder (1) and/or the lower die holder (2) are/is provided with a limiting block (25), and the limiting block (25) is used for limiting the position of the upper die holder (1) towards the lower die holder (2) during operation.

10. The sheet metal component forming and welding device of claim 1, wherein:

the lower die holder (2) is also provided with a positioning block and/or a positioning column;

the positioning blocks and/or the positioning columns are arranged on the periphery of the bending station (21).

11. A sheet metal part forming and welding method is characterized by comprising the following steps: the sheet metal part forming and welding device based on any one of claims 5 to 7 is realized by the following specific steps:

s1, moving an upper die base towards a lower die base, and mutually matching a bending punch with a bending female die to bend and form a metal sheet;

s2, driving the lower electrode fixing block to move to a superposition welding position of the metal sheet by the wedge mechanism;

s3, butting the upper electrode and the lower electrode, and performing spot welding operation on the overlapped welding position of the metal sheets;

s4, after welding is completed, the upper die holder moves towards the direction far away from the lower die holder;

and S5, repeating the steps S1-S4.

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