Press machine

Abstract

The utility model discloses a press machine which comprises a positioning and pressing device, a leveling device, a welding device and a control unit, and the leveling device is used for leveling a leveling part of a workpiece and comprises a leveling upper die, a leveling lower die and a leveling power component for driving the leveling upper die to lift; the welding device is used for welding the welding part of the workpiece. The leveling device and the welding device can be used for leveling the leveling part of the workpiece and welding the welding part of the workpiece respectively, and the positioning and pressing device ensures that the workpiece is in a stable pressing state during leveling and welding, so that leveling and welding are carried out smoothly; and the control unit controls the working states of the positioning and pressing power part, the leveling power part and the welding device, so that the automatic leveling and welding of the workpiece can be realized, the workpiece processing quality and the production efficiency are improved, and the labor intensity is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of sheet metal processing, and in particular relates to a press capable of flattening and welding sheet metal parts. Background Art

[0002] In sheet metal processing, flattening refers to the process of transitioning a workpiece with a certain shape to a flat surface.

[0003] Existing presses capable of flattening operations can usually only perform simple flattening operations on sheet metal parts, and are unable to perform both flattening and welding operations. As a result, some special sheet metal parts that require both flattening and welding can only be flattened and welded manually, resulting in unstable quality, low production efficiency, and high labor intensity for operators.

[0004] The above information disclosed in this background technology is only used to increase the understanding of the background technology of this application. Therefore, it may contain information that does not constitute the prior art known to ordinary technicians in this field. Summary of the Invention

[0005] In view of the problems pointed out in the background technology, the utility model proposes a press machine, which can realize automatic flattening and welding of workpieces, improve processing quality and production efficiency, and reduce labor intensity.

[0006] In order to achieve the above-mentioned purpose of the utility model, some embodiments of the utility model adopt the following technical solutions:

[0007] In some embodiments of the present application, a press is provided, comprising:

[0008] A positioning and pressing device is used to position and press the workpiece, which includes a pressing upper die, a positioning lower die, and a positioning and pressing power component for driving the pressing upper die to rise and fall;

[0009] A flattening device is used to flatten the flattened portion of the workpiece, comprising a flattening upper die, a flattening lower die, and a flattening power component for driving the flattening upper die to rise and fall;

[0010] A welding device, used for welding the welding part of the workpiece;

[0011] The control unit is used to control at least the working states of the positioning and pressing power component, the flattening power component and the welding device.

[0012] The press in the above technical solution has the following advantages or beneficial effects: by setting a flattening device and a welding device, they can be used for flattening operations on the flattened part of the workpiece and welding operations on the welding part respectively. The positioning and clamping device ensures that the workpiece is in a stable clamping state during flattening and welding, so that flattening and welding can be carried out smoothly. The control unit controls the working states of the positioning and clamping power components, the flattening power components and the welding device. The press in the embodiment of the present application can realize automatic flattening and welding of the workpiece, thereby improving the workpiece processing quality and production efficiency and reducing labor intensity.

[0013] In some embodiments of the present application, the flattening upper mold includes a flattening plane;

[0014] The flattening lower die comprises a recessed accommodating portion adapted to the outer contour of the workpiece, and a positioning plane matched with the flattening plane, and the recessed accommodating portion opens upward.

[0015] The press in the above technical solution has the following advantages or beneficial effects: the flattening lower die can not only cooperate with the flattening upper die to achieve the flattening process, but its recessed accommodating part can also play a role in positioning and supporting the workpiece, which is beneficial to improving the workpiece processing quality.

[0016] In some embodiments of the present application, the workpiece is a sheet metal bending part with a concave cross-section, including a long workpiece body and an internal reinforcement;

[0017] An inner flange is formed on the top edge of the side plate of the workpiece body and is in contact with the side plate, and the flattened parts are the two end parts of the inner flange;

[0018] The reinforcement extends along the extension direction of the workpiece body and is located between the flattened parts at both ends, and the reinforcement is welded to the inner flange;

[0019] The flattening device is respectively provided at two ends of the inner turning edge.

[0020] The welding device is used for welding the reinforcement and the inner flange.

[0021] The press in the above technical solution has the following advantages or beneficial effects: it can realize the flattening and welding of the sheet metal workpiece with the above special structure.

[0022] In some embodiments of the present application, the welding device is a spot welding machine, including a fuselage, an upper electrode seat, an upper electrode arranged on the upper electrode seat, an upper electrode lifting power component arranged on the fuselage and a lower electrode seat, and a lower electrode arranged on the lower electrode seat. The fuselage and the upper electrode seat are formed with mutually cooperating lifting guide structures, and the upper electrode seat is connected to the output end of the upper electrode lifting power component.

[0023] The press in the above technical solution has the following advantages or beneficial effects: a spot welding machine is used to weld the welding parts of the workpiece, with high welding quality, high workpiece strength and good density; a mutually coordinated lifting and guiding structure is formed on the machine body and the upper electrode seat, which can guide the movement of the upper electrode driven by the upper electrode seat, so that the upper electrode moves smoothly, the welding position is accurate, and the welding quality is guaranteed.

[0024] In some embodiments of the present application, the upper electrode lifting power component is a cylinder, and its piston rod is connected to the upper electrode seat upward.

[0025] The press in the above technical solution has the following advantages or beneficial effects: the piston rod of the cylinder is connected to the upper electrode seat upward, so the cylinder is positioned lower, the entire welding device has a compact structure, the center of gravity is lower, and the upper electrode seat is pulled down to move the lower electrode downward. At the same time, combined with the guiding effect of the lifting guide structure, the movement of the upper electrode is smoother.

[0026] In some embodiments of the present application, the pressing upper die includes a pressing portion and a connecting portion, and the connecting portion is connected to the power output end of the positioning and pressing power component;

[0027] The positioning lower mold has a recessed positioning portion adapted to the outer contour of the workpiece, and the recessed positioning portion opens upward.

[0028] The press in the above technical solution has the following advantages or beneficial effects: the positioning and pressing device with the above structure can achieve reliable positioning and pressing of the workpiece.

[0029] In some embodiments of the present application, the positioning and pressing device further includes a base, the positioning lower die and the positioning and pressing power component are fixed on the base, and the positioning and pressing power component pulls the pressing upper die downward to press the workpiece.

[0030] The press in the above technical solution has the following advantages or beneficial effects: the above structural positioning and pressing device is compact and stable, with a lower center of gravity. The workpiece is pressed by pulling down the upper mold, and the movement of the pressing upper mold is smooth and reliable, thereby further improving the positioning and pressing effect of the workpiece.

[0031] In some embodiments of the present application, the workpiece is in the shape of a long strip extending in a straight line, the positioning and pressing devices are arranged at multiple intervals along the length direction of the workpiece, and the flattening device, the positioning and pressing device and the welding device are arranged at intervals along the length direction of the workpiece.

[0032] The press in the above technical solution has the following advantages or beneficial effects: the positioning and clamping devices are arranged at multiple intervals along the length direction of the workpiece, which can improve the positioning and clamping effect of the long workpiece; the flattening device, positioning and clamping device and welding device are arranged at intervals along the length direction of the workpiece, which can reasonably utilize the space and improve the support reliability of the workpiece.

[0033] In some embodiments of the present application, the press further includes a supporting component for auxiliary supporting the workpiece.

[0034] The press in the above technical solution has the following advantages or beneficial effects: it can further improve the support reliability of the workpiece.

[0035] In some embodiments of the present application, the press further includes a body frame, the body frame includes a workbench, and the flattening device, the positioning and pressing device, and the welding device are arranged on the workbench.

[0036] The press in the above technical solution has the following advantages or beneficial effects: the main structural components are integrated on the body frame, making the press an integral structure, which is conducive to the rational use of space, and the body frame plays a certain safety protection role.

[0037] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0039] Figure 1 illustratively showing a perspective view of a workpiece according to some embodiments;

[0040] Figure 2 for Figure 1 A magnified view of part A;

[0041] Figure 3 illustratively showing a perspective view of a press according to some embodiments;

[0042] Figure 4 Schematically shows a perspective view of a press machine with the body frame omitted according to some embodiments;

[0043] Figure 5 for Figure 4 A magnified view of part B;

[0044] Figure 6 Schematically shows a perspective view of a flattening device according to some embodiments;

[0045] Figure 7 for Figure 6 Magnified view of part C;

[0046] Figure 8 exemplarily showing a perspective view of a welding device according to some embodiments;

[0047] Figure 9 exemplarily showing a perspective view of a welding device from another perspective according to some embodiments;

[0048] Figure 10 Schematic diagram showing the relative positions of a welding device and a workpiece according to some embodiments;

[0049] Figure 11 Schematically shows a perspective view of a positioning and pressing device according to some embodiments;

[0050] Figure 12 A perspective view of a centering mechanism according to some embodiments is exemplarily shown.

[0051] Reference numerals:

[0052] 1. Workpiece; 10. Workpiece body; 11. Side panel; 12. Inner flange; 20. Reinforcement;

[0053] 100, positioning and pressing device; 110, pressing upper die; 111, pressing portion; 112, connecting portion; 120, positioning lower die; 121, recessed positioning portion; 130, positioning and pressing power component; 140, base;

[0054] 200, flattening device; 210, flattening upper mold; 211, flattening plane; 212, horizontal bottom surface; 213, downward convex arc surface; 220, flattening lower mold; 221, recessed accommodating portion; 222, positioning plane; 223, avoidance groove; 230, flattening power component; 240, flattening machine body;

[0055] 300, body frame; 310, workbench;

[0056] 400, centering mechanism; 410, centering power component; 420, centering pushing component; 421, fixing portion; 422, pushing portion; 430, guide component; 431, guide channel;

[0057] 500, support components;

[0058] 600, welding device; 610, upper fuselage; 611, upper fuselage vertical portion; 612, inclined portion; 620, upper electrode lifting power component; 630, upper electrode seat; 631, upper electrode seat fixing portion; 632, detachable portion; 640, upper electrode; 650, lower electrode seat; 660, lower electrode; 670, oblique lifting guide structure; 680, lower fuselage; 681, fuselage base portion; 682, lower fuselage vertical portion; 683, long strip screw hole. DETAILED DESCRIPTION

[0059] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0060] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0061] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0062] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0063] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0064] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but a person of ordinary skill in the art will recognize the application of other processes and / or the use of other materials.

[0065] Reference Figures 3 to 12 In some embodiments of the present application, a press is provided, including a positioning and pressing device 100, which is used to position and press the workpiece 1, and includes a pressing upper mold 110, a positioning lower mold 120 and a positioning and pressing power component 130 that drives the pressing upper mold 110 to rise and fall.

[0066] In some embodiments of the present application, the press includes a flattening device 200, which is used to flatten the flattened part of the workpiece 1. It includes a flattening upper mold 210 (also called a pressure head), a flattening lower mold 220 and a flattening power component 230 that drives the flattening upper mold 210 to rise and fall.

[0067] In some embodiments of the present application, the press includes a welding device 600 , which is used for welding the welding portion of the workpiece 1 .

[0068] In some embodiments of the present application, the press includes a control unit, which is used to control at least the working states of the positioning and pressing power component 130, the flattening power component 230 and the welding device 600.

[0069] In some embodiments of the present application, the press includes a body frame 300, the body frame 300 includes a workbench 310, the flattening device 200, the positioning and pressing device 100 and the welding device 600 are arranged on the workbench 310, which is convenient for operation and realizes an integrated design, making the press a whole, which is conducive to the rational use of space. The body frame 300 plays a certain safety protection role, and the control unit can be arranged in the space below the workbench 310 on the body frame 300.

[0070] The flattening device 200 and the welding device 600 can be used for flattening operations on the flattened parts and welding operations on the welding parts of the workpiece 1, respectively. The positioning and clamping device 100 ensures that the workpiece 1 is in a stable clamping state during flattening and welding, so that the flattening and welding proceed smoothly. The control unit controls the working states of the positioning and clamping power component 130, the flattening power component 230 and the welding device 600. The press in some embodiments of the present application can realize automatic flattening and welding of the workpiece 1, thereby improving the processing quality and production efficiency of the workpiece 1 and reducing labor intensity.

[0071] In some embodiments of the present application, Figures 4 to 7 As shown, the flattening power component 230 is a cylinder, which is arranged above the flattening device 200 body, the cylinder piston rod is vertically downward, the flattening upper mold 210 is connected to the output end of the cylinder piston rod, and the flattening upper mold 210 is located directly above the flattening lower mold 220. The flattening power component 230 drives the flattening upper mold 210 to move vertically downward, and after the flattening upper mold 210 contacts the part to be flattened of the workpiece 1, pressure is applied to the part to be flattened of the workpiece 1 through the flattening upper mold 210, so that the flattening upper mold 210 cooperates with the flattening lower mold 220 to realize the flattening forming of the flattened part of the workpiece 1, that is, the part to be flattened is formed into the flattened part on the workpiece 1.

[0072] The flattening upper die 210 includes a flattening plane 211 , and the flattening lower die 220 includes a recessed receiving portion 221 adapted to the outer contour of the workpiece 1 , and a positioning plane 222 cooperating with the flattening plane 211 , and the recessed receiving portion 221 opens upward.

[0073] During flattening, the workpiece 1 is supported in the recessed accommodating portion 221 of the flattening lower die 220, the outer contour of the workpiece 1 at the part to be flattened is in contact with the positioning plane 222, and the part to be flattened faces upward. The flattening upper die 210 moves vertically downward under the drive of the flattening power component 230 until the flattening plane 211 of the flattening upper die 210 contacts the part to be flattened of the workpiece 1. The flattening upper die 210 continues to move downward, applying pressure to the part to be flattened, and squeezing the part to be flattened between the flattening plane 211 of the flattening upper die 210 and the positioning plane 222 of the flattening lower die 220, thereby gradually achieving flattening.

[0074] The flattening lower die 220 not only cooperates with the flattening upper die 210 to realize the flattening process, but its recessed receiving portion 221 can also play a role in positioning and supporting the workpiece 1, thereby helping to improve the processing quality of the workpiece 1.

[0075] In some embodiments of the present application, Figure 7 As shown, the flattening upper mold 210 includes a horizontal bottom surface 212 , and the flattening plane 211 is located above and outside the horizontal bottom surface 212 and is inclined relative to the horizontal bottom surface 212 .

[0076] Correspondingly, the positioning plane 222 is the inner side surface of the recessed receiving portion 221, which is an inclined surface adapted to the flattening plane 211. The inclined flattening plane 211 cooperates with the inclined positioning plane 222 to achieve flattening of the inclined flattening portion.

[0077] In some embodiments of the present application, Figure 7 As shown, the leveling plane 211 is provided on two opposite sides of the horizontal bottom surface 212 , and the two leveling planes 211 are symmetrical to each other.

[0078] Correspondingly, the recessed accommodating portion 221 is in a V-shaped groove shape that is wider at the top and narrower at the bottom, and the positioning planes 222 are two opposite inner side surfaces of the recessed accommodating portion 221 .

[0079] By using the structure of the flattening upper mold 210 and the flattening lower mold 220, the following can be formed: Figure 1 and Figure 2 The workpiece 1 shown. Specifically, Figure 1 and Figure 2 As shown, the workpiece 1 is a sheet metal bending part with a V-shaped concave cross-section, including a long workpiece body 10 and an internal reinforcement 20.

[0080] The workpiece body 10 extends in a straight line and has two side panels 11 intersecting in a V shape. The top edges of the two side panels 11 are formed with inner flanges 12 that fit in with the inner walls of the side panels 11. The ends of the inner flanges 12 are flush with the ends of the workpiece body 10. The flattening parts are the two ends of the inner flanges 12, that is, the two ends of the workpiece 1 are flattened during flattening. Figure 1 and Figure 2 Taking the left end of the workpiece 1 as an example, the flattened portion is portion b.

[0081] The flattening device 200 is provided at each end of the inner flange 12 to flatten the flattening portions at the two ends respectively.

[0082] Since the side plate 11 of the workpiece body 10 is inclined, the inner flange 12 is also inclined, the leveling plane 211 is inclined, the positioning plane 222 is inclined, and the leveled portion is also inclined accordingly.

[0083] The reinforcement 20 is welded to the inner flange 12, and the reinforcement 20 extends along the extension direction of the workpiece body 10 and is located between the flattened parts at both ends of the workpiece 1, that is, the length of the reinforcement 20 is smaller than the length of the workpiece body 10, and its two ends do not extend outside the two ends of the workpiece body 10. Along the length direction of the workpiece body 10, the flattened part is located on the outside of the reinforcement 20.

[0084] Accordingly, the welding device 600 is used for welding the reinforcement 20 to the inner flange 12 .

[0085] The press in some embodiments of the present application can realize the automatic flattening and welding of the sheet metal workpiece 1 with the above-mentioned complex structure.

[0086] like Figure 6 and Figure 7 As shown, the end of the workpiece 1 is placed in the recessed receiving portion 221 of the flattening lower die 220, the outer wall of the workpiece body 10 is fitted with the recessed receiving portion 221, and the inclined flattening plane 211 cooperates with the inclined positioning plane 222 to achieve flattening of the inclined flattening portion.

[0087] In some embodiments of the present application, Figure 7 As shown, the flattening plane 211 and the horizontal bottom surface 212 are connected by a downward convex arc surface 213 to avoid damage to the workpiece 1 caused by the sharp connection.

[0088] An escape groove 223 is formed at the bottom tip of the recessed accommodating portion 221 to play an escape role and provide a certain escape buffer space for the workpiece 1 to move downward under the pressure of the flattening upper mold 210.

[0089] For the welding device 600, in some embodiments of the present application, such as Figures 8 to 10 The welding device 600 includes a body, an upper electrode holder 630 , an upper electrode 640 , an upper electrode lifting power component 620 , a lower electrode holder 650 and a lower electrode 660 .

[0090] The upper electrode holder 630, the lower electrode holder 650, and the upper electrode lifting power component 620 are mounted on the fuselage. The upper electrode 640 is mounted on the upper electrode holder 630, and the lower electrode 660 is mounted on the lower electrode holder 650. A mutually cooperating lifting guide structure is formed on the fuselage and the upper electrode holder 630. The upper electrode holder 630 is connected to the output end of the upper electrode lifting power component 620. The upper electrode lifting power component 620 drives the upper electrode holder 630 to move up and down under the guidance of the lifting guide structure, thereby driving the upper electrode 640 to move up and down. When the upper electrode 640 moves to cooperate with the lower electrode 660 to sandwich the welding part of the workpiece 1 between the two, the electrodes are energized to perform spot welding on the welding part of the workpiece 1.

[0091] A spot welding machine is used to weld the welding parts of the workpiece 1, with high welding quality, high strength of the workpiece 1 and good density; a lifting and guiding structure that cooperates with each other is formed on the fuselage and the upper electrode holder 630, which can guide the movement of the upper electrode 640 driven by the upper electrode holder 630, so that the upper electrode 640 moves smoothly and the welding position is accurate, thereby ensuring the welding quality.

[0092] For Figure 1 and Figure 2 In the workpiece 1 shown, since the joining seam a between the reinforcement 20 and the inner flange 12 (the welding position of the reinforcement 20 and the inner flange 12 is on the joining seam a) is on the upper part of the side plate 11 of the workpiece body 10, the side plate 11 is an inclined plate, and the upper electrode 640 and the lower electrode 660 need to be perpendicular to the joining seam a, the upper electrode 640 and the lower electrode 660 need to be arranged relative to each other in an inclined direction (i.e., the extension direction of the dotted line L), that is, the axes of the upper electrode 640 and the lower electrode 660 are collinear and inclined, and the inclination direction of the upper electrode 640 and the lower electrode 660 is perpendicular to the side plate 11 of the workpiece body 10 and passes through the joining seam a between the reinforcement 20 and the inner flange 12, as shown in FIG. Figure 2 and Figure 10 shown.

[0093] Correspondingly, the guiding direction of the mutually cooperating lifting guide structure formed on the fuselage and the upper electrode seat 630 is parallel to the above-mentioned inclined direction, so that the upper electrode 640 can be lifted and lowered obliquely along the inclined direction. At this time, the lifting guide structure can be called an oblique lifting guide structure 670.

[0094] The oblique lifting guide structure 670 can be a guide rail and slider structure, the guide rail is fixed on the machine body, the slider is fixed on the upper electrode seat 630, and the slider and the guide rail are slidably matched.

[0095] In some embodiments of the present application, the upper electrode lifting power component 620 is a cylinder, which is tilted in a direction parallel to the above-mentioned tilting direction (the extension direction of the dotted line L), and its piston rod is connected to the upper electrode holder 630 upward, so that the cylinder position can be relatively low, making the entire welding device 600 compact and the center of gravity low. The lower electrode 660 is moved downward by pulling down the upper electrode holder 630. At the same time, the guiding effect of the lifting guide structure makes the movement of the upper electrode 640 more stable and reliable.

[0096] In some embodiments of the present application, the body of the welding device 600 includes an upper body 610 and a lower body 680 .

[0097] Among them, the upper fuselage 610 includes an inclined portion 612 and an upper fuselage vertical portion 611 inclined along the above-mentioned inclined direction. The inclined portion 612 is located above the upper fuselage vertical portion 611 and is fixedly connected to the upper fuselage vertical portion 611 as a whole. The upper electrode seat 630 and the upper electrode 640, the lower electrode seat 650 and the lower electrode 660, the oblique lifting guide mechanism 670, and the upper electrode lifting power component 620 are arranged on the inclined portion 612.

[0098] The lower body 680 includes a body base portion 681 and a lower body vertical portion 682. The body base portion 681 is used to mount the entire welding device 600 on the workbench 310. The upper body vertical portion 611 and the lower body vertical portion 682 are detachably connected. Specifically, the upper body vertical portion 611 is provided with a plurality of screw connection holes, and the lower body vertical portion 682 is provided with a corresponding plurality of screw connection holes. By configuring the screw connection holes on the upper body vertical portion 611 or the lower body vertical portion 682 as vertically extending elongated strip-shaped screw holes 683, the vertical position of the upper body vertical portion 611 relative to the lower body vertical portion 682 can be adjusted, thereby adjusting the installation height of the upper body 610, thereby facilitating the welding of different workpieces 1.

[0099] In some embodiments of the present application, the upper electrode 640 is detachably mounted on the upper electrode holder 630 , and the lower electrode 660 is detachably mounted on the lower electrode holder 650 , so that different electrodes can be replaced according to different working conditions.

[0100] Specifically, the upper electrode seat 630 includes an upper motor seat fixing part 631 and a detachable part 632. The detachable part 632 is connected to the upper motor seat fixing part 631 by screws, and the upper electrode 640 is clamped and fixed therebetween. The detachable installation of the lower electrode 660 is similarly arranged and will not be elaborated here.

[0101] For Figure 1 and Figure 2 For the linear, long workpiece 1 shown, if the flattened sections at both ends need to be equal in length, the reinforcement 20 needs to be aligned with the workpiece body 10. This means that the distance between one end of the reinforcement 20 and the corresponding end of the workpiece body 10 must be equal to the distance between the other end of the reinforcement 20 and the corresponding end of the workpiece body 10. This means that the width of section b at the left end of the workpiece 1 is equal to the width of section b at the right end of the workpiece 1. Therefore, the reinforcement 20 needs to be aligned with the workpiece body 10 before flattening and welding.

[0102] In order to achieve automatic centering adjustment of the reinforcement 20 relative to the workpiece body 10, in some embodiments of the present application, the press also includes a centering mechanism 400, which is used to drive the reinforcement 20 to slide relative to the inner flange 12 to a position aligned with the workpiece body 10 before flattening and welding.

[0103] Specifically, before flattening and welding, when the reinforcement 20 is placed into the workpiece body 10, it can be inserted into the workpiece body 10 from one end of the workpiece body 10 in the form of insertion until the reinforcement 20 is completely located in the workpiece body 10 and both ends are at a certain distance from the two ends of the workpiece body 10.

[0104] Then, the workpiece 1 is placed on the press and put into position.

[0105] Before flattening and welding, the centering mechanism 400 is operated first to slide the reinforcement member 20 relative to the inner flange 12 to a position aligned with the workpiece body 10 .

[0106] In some embodiments of the present application, Figure 4 and Figure 12 As shown, the centering mechanism 400 is located outside the end of the workpiece 1, and includes a centering power component 410 and a centering pushing component 420 connected to the output end of the centering power component 410. The centering power component 410 is used to drive the centering pushing component 420 to move telescopically along the extension direction of the workpiece body 10. When the centering pushing component 420 is extended, it pushes the reinforcement 20 to slide relative to the inner flange 12 to a position aligned with the workpiece body 10. After centering, the centering power component 410 drives the centering pushing component 420 to return to its position.

[0107] In some embodiments of the present application, a centering mechanism 400 is provided on each outer side of the two ends of the workpiece 1, and the centering pushing components 420 of the two sets of centering mechanisms 400 extend synchronously to push the reinforcement 20 to slide relative to the inner flange 12 to a position aligned with the workpiece body 10.

[0108] That is, the two sets of centering mechanisms 400 extend synchronously from both ends of the reinforcement 20. Before centering, no matter which end of the reinforcement 20 is biased towards the workpiece body 10, there is a corresponding centering mechanism 400 to push it to slide to the centering position, thereby improving the efficiency and reliability of centering adjustment.

[0109] In some embodiments of the present application, the centering mechanism 400 further includes a guide component 430, such as Figure 5 As shown, the guide component 430 is fixedly arranged and has a guide channel 431 adapted to the cross-sectional profile of the centering pushing component 420 , and the centering pushing component 420 passes through the guide channel 431 .

[0110] The guide component 430 can support and guide the centering pushing component 420, thereby preventing the centering pushing component 420 of the cantilever structure from being completely deformed under its own weight.

[0111] The guide member 430 may be a block-shaped structure or a sheet-shaped structure, and may be fixed on the workbench 310 or on the flattened lower mold 220 .

[0112] To enhance the structural strength of the centering push component 420, it includes a fixed portion 421 and a push portion 422. The push portion 422 is perpendicularly connected to the fixed portion 421, and the fixed portion 421 is fixedly connected to the output end of the centering power component 410. Since the push portion 422 extends into the workpiece body 10 and contacts the reinforcement member 20 to push it, the push portion 422 can be relatively small. The fixed portion 421 is preferably larger to enhance the overall structural strength of the centering push component 420 and increase the contact area with the output end of the centering power component 410, thereby improving connection reliability.

[0113] For a horizontally placed workpiece 1 , the centering power component 410 drives the centering pushing component 420 to move horizontally, which can be a horizontally mounted multi-axis cylinder, set on the workbench 310 or on the body of the leveling device 200 .

[0114] For positioning and clamping mechanisms, such as Figure 11 As shown, the clamping upper mold 110 includes a clamping part 111 and a connecting part 112, and the clamping part 111 and the connecting part 112 are connected as a whole. The connecting part 112 is connected to the power output end of the positioning and clamping power component 130. The positioning and clamping power component 130 drives the clamping part 111 to rise and fall through the connecting part 112, so that the clamping upper mold 110 cooperates with the positioning lower mold 120 to achieve clamping of the workpiece 1.

[0115] The positioning lower die 120 of the positioning and clamping mechanism has a recessed positioning portion 121 adapted to the outer contour of the workpiece 1 . The recessed positioning portion 121 opens upward, and the workpiece 1 fits and is positioned in the recessed positioning portion 121 , so that the workpiece 1 can be reliably positioned.

[0116] In some embodiments of the present application, the positioning and pressing device 100 also includes a base 140, and the positioning lower mold 120 and the positioning and pressing power component 130 are fixed on the base 140. The positioning and pressing power component 130 pulls the pressing upper mold 110 downward to move downward, thereby pressing the workpiece 1.

[0117] The positioning and pressing device 100 has a compact and stable structure with a low center of gravity. By pulling down the upper die 110 to press the workpiece 1 , the upper die 110 moves smoothly and reliably, thereby further improving the positioning and pressing effect of the workpiece 1 .

[0118] like Figure 11 As shown, the positioning lower mold 120 and the positioning and clamping power component 130 are arranged side by side on the base 140. The positioning and clamping power component 130 is relatively high and adopts a multi-axis cylinder arranged upright and upward. The clamping upper mold 110 is in a horizontal L-shape, and its horizontal part is the connecting part 112, which is fixed to the output end of the multi-axis cylinder by screws. The vertical part of the clamping upper mold 110 is downward to form a clamping part 111, which is located directly above the positioning lower mold 120.

[0119] The multi-axis cylinder has a large contact area with the connecting portion 112, so that the downward pulling force transmitted to the pressing portion 111 is large and uniform, so that the pressing force of the pressing portion 111 on the workpiece 1 is as balanced as possible, making the pressing reliable.

[0120] In some embodiments of the present application, Figure 3 and Figure 4 As shown, the press further includes a supporting component 500 for auxiliary supporting the workpiece 1 .

[0121] The support member 500 may be a support column, the top of which has a support groove adapted to the outer contour of the workpiece 1, and the workpiece 1 is supported in the support groove. For a long workpiece 1, multiple support members 500 may be arranged at intervals along the length direction of the workpiece 1.

[0122] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0123] The above are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited to them. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this utility model should be included in the scope of protection of the present utility model. Therefore, the scope of protection of the present utility model should be based on the scope of protection of the claims.

Claims

1. A press, characterized in that: include: A positioning and pressing device is used to position and press the workpiece, which includes a pressing upper die, a positioning lower die, and a positioning and pressing power component for driving the pressing upper die to rise and fall; A flattening device is used to flatten the flattened portion of the workpiece, comprising a flattening upper die, a flattening lower die, and a flattening power component for driving the flattening upper die to rise and fall; A welding device, used for welding the welding part of the workpiece; The control unit is used to control at least the working states of the positioning and pressing power component, the flattening power component and the welding device.

2. The press according to claim 1, characterized in that The flattening upper die includes a flattening plane; The flattening lower die comprises a recessed accommodating portion adapted to the outer contour of the workpiece, and a positioning plane matched with the flattening plane, and the recessed accommodating portion opens upward.

3. The press according to claim 2, characterized in that The workpiece is a sheet metal bending part with a concave cross-section, comprising a long workpiece body and an internal reinforcement; An inner flange is formed on the top edge of the side plate of the workpiece body and is in contact with the side plate, and the flattened parts are the two end parts of the inner flange; The reinforcement extends along the extension direction of the workpiece body and is located between the flattened parts at both ends, and the reinforcement is welded to the inner flange; The flattening device is respectively provided at two ends of the inner turning edge; The welding device is used for welding the reinforcement and the inner flange.

4. The press according to claim 1, characterized in that The welding device is a spot welding machine, including a fuselage, an upper electrode seat, an upper electrode arranged on the upper electrode seat, an upper electrode lifting power component arranged on the fuselage, and a lower electrode seat, and a lower electrode arranged on the lower electrode seat. The fuselage and the upper electrode seat are formed with mutually cooperating lifting guide structures, and the upper electrode seat is connected to the output end of the upper electrode lifting power component.

5. The press according to claim 4, characterized in that The upper electrode lifting power component is a cylinder, and its piston rod is connected to the upper electrode seat upward.

6. The press according to claim 1, characterized in that The pressing upper die includes a pressing portion and a connecting portion, and the connecting portion is connected to the power output end of the positioning and pressing power component; The positioning lower mold has a recessed positioning portion adapted to the outer contour of the workpiece, and the recessed positioning portion opens upward.

7. The press according to claim 6, characterized in that The positioning and pressing device further comprises a base, the positioning lower die and the positioning and pressing power component are fixed on the base, and the positioning and pressing power component pulls the pressing upper die downward to press the workpiece.

8. The press according to claim 1, characterized in that The workpiece is in the shape of a long strip extending in a straight line. The positioning and pressing devices are arranged at multiple intervals along the length direction of the workpiece. The flattening device, the positioning and pressing device and the welding device are arranged at intervals along the length direction of the workpiece.

9. The press according to claim 1, characterized in that The press further includes a supporting component for auxiliary supporting the workpiece.

10. The press according to claim 1, wherein The press also includes a body frame, which includes a workbench, and the flattening device, the positioning and pressing device, and the welding device are arranged on the workbench.

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