A metal parts one-time forming and bending equipment

Abstract

This invention relates to the field of bending technology, specifically to a one-time forming bending device for metal parts, comprising a base, side molds, and a mounting plate; a bottom mold is movably disposed above the base; two side molds are provided, including a horizontal section and a vertical section; the horizontal section of the side mold abuts against the lower end of the bottom mold; a top block slides vertically at the upper end of the vertical section of the side mold; an upper mold is disposed below the mounting plate; the upper mold includes an upper parting mold and a lower parting mold; two hinge plates are disposed vertically between the lower end of the upper parting mold and the upper end of the lower parting mold on the same side; the two hinge plates are hinged together in a V-shaped groove with the smaller end facing the bottom mold; bending is achieved by folding the two hinge plates, avoiding relative sliding between the top block and the metal plate, thereby avoiding the problem in the prior art where the metal plate is stretched and deformed due to the large moving resistance between the top block and the metal plate during the process of the top block squeezing the metal plate into the groove, thus avoiding affecting the appearance of the bent metal plate.

Description

Technical Field

[0001] This invention relates to the field of bending technology, specifically to a one-time forming bending equipment for metal parts. Background Technology

[0002] Metal sheet bending equipment often uses composite bending dies to achieve one-time forming. It is a highly efficient sheet metal manufacturing equipment. Through integrated dies and intelligent control, it can simultaneously bend different areas of the sheet metal (such as adjacent edges, multiple edges, or complex curved surfaces) to directly produce complete multi-bending structural parts after one stamping.

[0003] In the prior art, the processing of U-shaped concave metal sheet parts involves bending the metal sheet into a U-shaped opening, with concave sections at both ends of the U-shaped part facing the U-shaped opening, as shown in the attached drawings of the specification. Figure 13 and Figure 14 As shown, a top mold and a bottom mold are typically provided. The bottom mold is mounted on a base on a workbench and moves up and down via an elastic connector. Two L-shaped side molds are symmetrically arranged on both sides of the bottom mold. The L-shaped angle of the side molds is rotatably mounted on the base, and the horizontal section of the side mold abuts against the lower end of the bottom mold. A top block is fixed on the upper end of the vertical section of the side mold near the side wall of the bottom mold. The upper mold has a groove on the side wall near the side mold that mates with the top block. When bending, the metal plate is placed on the upper end of the two side molds, driving the upper mold to move down and abut against the bottom mold, pressing the metal plate between the two side molds. The upper mold drives the bottom mold to continue moving down, and the bottom mold drives the two side molds to rotate, so that the vertical section of the side mold approaches the upper mold and presses the metal plate against the side wall of the upper mold. The top block presses the metal plate into the groove, thereby bending the metal plate into a concave U-shape and forming a concave opening facing the U-shape. However, during the process of pressing the metal sheet into the groove, relative movement occurs between the top block and the metal sheet. The movement resistance between the top block and the metal sheet is relatively large, which may lead to severe tensile deformation and affect the appearance after bending. Summary of the Invention

[0004] This invention provides a one-time forming and bending device for metal parts to solve the above-mentioned problems.

[0005] The present invention provides a one-time forming and bending equipment for metal parts, which adopts the following technical solution: a one-time forming and bending equipment for metal parts, comprising a base, a side mold, and a mounting plate.

[0006] A bottom mold is installed above the base, moving up and down; a spring is fixedly connected between the bottom mold and the base.

[0007] Two side molds are provided, symmetrically arranged on both sides of the bottom mold; the side molds are L-shaped, including a horizontal section and a vertical section; one end of the horizontal section and the lower end of the vertical section are fixed; the horizontal section is located below the bottom mold; the junction of the horizontal and vertical sections of the side mold is rotatably mounted on the base via a pivot, and a torsion spring is connected between the pivot and the base; the horizontal section of the side mold is located below the bottom mold, and the horizontal section of the side mold abuts against the lower end of the bottom mold; initially, the end of the horizontal section of the side mold away from the pivot is inclined upward; the upper end of the vertical section of the side mold, near the side wall of the bottom mold, is provided with a V-shaped top block with its small end facing the bottom mold; the top block is slidably mounted on the side mold; a spring connects the top block and the side mold.

[0008] The mounting plate is positioned above the bottom mold and moves up and down via a hydraulic assembly. Below the mounting plate is an upper mold. The upper mold includes an upper parting mold and a lower parting mold. Two upper parting molds are symmetrically arranged on the left and right sides, with their lower ends inclined and forming a V-shape with the smaller end facing downwards. The upper parting mold and the mounting plate are connected by a connecting assembly. Two lower parting molds are symmetrically arranged on the left and right sides, with their upper ends inclined and forming a V-shape with the smaller end facing upwards. The upper and lower parting molds on the same side slide together via a telescopic assembly. Two hinge plates are positioned vertically between the lower end of the upper parting mold and the upper end of the lower parting mold on the same side. The two hinge plates are hinged together by a V-shaped groove with the smaller end facing the symmetrical plane of the two upper parting molds. The upper hinge plate is hinged to the upper parting mold, and the lower hinge plate is hinged to the lower parting mold. During bending, the mounting plate drives the upper mold to move downwards, the lower parting mold abuts against the metal plate and presses the metal plate between the two side molds. The lower parting mold continues to move downwards and abuts against the bottom mold, driving the bottom mold to move downwards, so as to drive the vertical sections of the two side molds to rotate upwards. The top block corresponds to the V-shaped groove formed by the two hinge plates on the same side. The top block enters the groove and moves downwards with the hinge plates. When the vertical section of the side mold is parallel to the side wall of the lower parting mold, the upper parting mold is driven to move downwards relative to the lower parting mold, so that the included angle between the two hinge plates becomes smaller, driving the metal plate at the groove to bend and form. The bending is achieved by the folding of the two hinge plates, avoiding relative sliding between the top block and the metal plate. This avoids the problem of the metal plate being pulled and deformed due to the large movement resistance between the top block and the metal plate during the process of the top block squeezing the metal plate into the groove in the prior art, thus avoiding affecting the appearance of the metal plate after bending.

[0009] Furthermore, the two upper parting dies slide sideways together; a spring is fixedly connected between the two upper parting dies; the two lower parting dies slide sideways together; a spring is fixedly connected between the two lower parting dies; the upper end of the upper parting die is inclined, and the upper ends of the two upper parting dies form a V-shaped gap with the smaller end facing down; the lower end of the lower parting die is inclined, and the lower ends of the two lower parting dies form a V-shaped gap with the smaller end facing up; an adjustment component is provided between the upper and lower parting dies; as the upper and lower parting dies approach each other, the adjustment component drives the two upper parting dies and the two lower parting dies to move away synchronously, so that the side wall of the lower parting die and the vertical section of the side die abut against each other, bending the metal plate into a U-shape. After bending, the spring between the two upper parting dies and the two lower parting dies drives the two upper parting dies and the two lower parting dies to approach synchronously, making it easy to remove the parts after the metal plate is bent.

[0010] Furthermore, the adjusting components include an upper top plate and a lower top plate; the upper top plate is located between the upper parting mold and the mounting plate; the upper top plate is fixed below the mounting plate; the lower end of the upper top plate is a V-shape with the smaller end facing downwards; the lower top plate is located between the bottom mold and the lower parting mold; the upper end of the lower top plate is a V-shape with the smaller end facing upwards; the inclined wall of the lower top plate and the inclined wall of the lower parting mold abut and slide in fit; the lower top plate and the upper top plate are fixedly connected by a telescopic rod. Initially, the upper top plate and the upper parting mold are in a separated state. When the lower top plate abuts against the bottom mold, the mounting plate continues to move downwards, the upper top plate abuts against the upper parting mold, and the upper and lower top plates drive the upper and lower parting molds closer to each other while simultaneously driving the two upper parting molds and the two lower parting molds to move away synchronously.

[0011] Furthermore, the connecting assembly includes a connecting cylinder; the connecting cylinder is vertically arranged and horizontally slidably mounted on the lower end of the mounting plate; a connecting rod is slidably mounted on the lower end of the connecting cylinder; the lower end of the connecting rod is fixedly connected to the upper parting mold; a spring is connected between the connecting rod and the connecting cylinder.

[0012] Furthermore, the lower parting mold has an air inlet at its lower end; the connecting rod and the connecting cylinder slide in a sealed manner; the connecting rod is hollow and tubular inside; an air pipe connects the connecting rod and the air inlet; the air inlet communicates with the connecting rod and the connecting cylinder through the air pipe. When the lower parting mold abuts against the bottom mold and the mounting plate continues to move downward, causing the connecting rod to insert into the connecting cylinder, the connecting rod compresses the air inside the connecting cylinder and blows it out through the air inlet, blowing off burrs and debris from the surface of the metal parts to prevent debris from affecting the bending effect.

[0013] Furthermore, the telescopic component includes a sliding hole and a sliding rod; the sliding hole is located at the upper end of the lower parting mold; the sliding rod is located between the upper parting mold and the lower parting mold, with the upper end of the sliding rod fixedly connected to the upper parting mold and the lower end slidingly engaged with the sliding hole.

[0014] Furthermore, an internal lubrication assembly is provided at the slide rod; the slide rod and the sliding hole slide in a sealed manner; the internal lubrication assembly includes an internal oil cavity; the internal oil cavity is located within the lower parting mold and below the sliding hole; the internal oil cavity and the sliding hole are connected, and the internal oil cavity has an internal oil outlet. When the upper and lower parting molds approach each other, the slide rod slides within the sliding hole, increasing the air pressure within the internal oil cavity, forcing the lubricating oil within the internal oil cavity out through the internal oil outlet to lubricate the bent areas of the metal plate surface.

[0015] Furthermore, an external lubrication component is provided at the top block; the external lubrication component lubricates the bent ends of the metal plate.

[0016] Furthermore, the external lubrication assembly includes an external oil cavity; the external oil cavity is located at the upper end of the vertical section of the side mold; a slider is slidably installed in the external oil cavity; the slider is inverted L-shaped and fixedly connected to the top block; both the top block and the slider are equipped with oil pipes; the oil pipes connect the external oil cavity to the outside. When the top block enters between the two hinge plates and moves downward with the hinge plates, the top block drives the slider downward to squeeze the external oil cavity, causing the lubricating oil in the external oil cavity to flow out from the top block through the oil pipes, thereby lubricating the bent ends of the metal plate.

[0017] Furthermore, a telescopic column is fixed to the lower end of the mounting plate; the lower end of the telescopic column is fixedly connected to the base via a connecting plate; a spring is connected between the telescopic column and the connecting plate; the hydraulic assembly includes a hydraulic cylinder; the hydraulic cylinder is located on the upper end of the mounting plate; the hydraulic cylinder is fixedly connected to the connecting plate via a bracket; the piston rod of the hydraulic cylinder is fixedly connected to the mounting plate.

[0018] The beneficial effects of this invention are:

[0019] 1. During bending, the mounting plate drives the upper mold to move downwards, the lower parting mold abuts against the metal plate and presses the metal plate between the two side molds. The lower parting mold continues to move downwards and abuts against the bottom mold, driving the bottom mold to move downwards, so as to drive the vertical sections of the two side molds to rotate upwards. The top block corresponds to the V-shaped groove formed by the two hinge plates on the same side. The top block enters the groove and moves downwards with the hinge plates. When the vertical section of the side mold is parallel to the side wall of the lower parting mold, the upper parting mold is driven to move downwards relative to the lower parting mold, so that the included angle between the two hinge plates becomes smaller, driving the metal plate at the groove to bend and form. The bending is achieved by the folding of the two hinge plates, avoiding relative sliding between the top block and the metal plate. This avoids the problem of the metal plate being pulled and deformed due to the large movement resistance between the top block and the metal plate during the process of the top block squeezing the metal plate into the groove in the prior art, thus avoiding affecting the appearance of the metal plate after bending.

[0020] 2. As the upper and lower parting dies approach each other, the adjusting component drives the two upper and two lower parting dies to move away synchronously, so that the side wall of the lower parting die and the vertical section of the side die abut against each other, bending the metal plate. After bending, the spring between the two upper and two lower parting dies drives the two upper and two lower parting dies to move closer synchronously, making it easier to remove the parts after the metal plate is bent.

[0021] 3. When the mold parting plate abuts against the bottom mold, the mounting plate continues to move downwards, allowing the connecting rod to be inserted into the connecting cylinder. The air inside the connecting cylinder is compressed and blown out through the air blowing port to blow off burrs and debris from the surface of the metal parts, preventing debris from affecting the bending effect.

[0022] 4. When the upper and lower parting molds approach each other, the slide rod slides within the sliding hole, increasing the air pressure in the inner oil cavity. This forces the lubricating oil in the inner oil cavity out through the inner oil outlet, lubricating the bends on the metal plate surface. As the top block enters between the two hinge plates and moves downward with them, the top block drives the slider downward, compressing the outer oil cavity. This forces the lubricating oil in the outer oil cavity to flow out through the oil pipe from the top block, lubricating the bends at both ends of the metal plate. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of an embodiment of a metal part one-time forming and bending device according to the present invention;

[0025] Figure 2 This is a front view of an embodiment of a metal part one-time forming and bending device according to the present invention;

[0026] Figure 3 This is a diagram showing the state of the upper top plate and the upper parting mold when they are in contact, according to an embodiment of a metal part one-time forming and bending equipment of the present invention.

[0027] Figure 4 This is a diagram showing the state when the upper and lower parting dies of an embodiment of a metal part one-time forming and bending device of the present invention are close to each other.

[0028] Figure 5 This is a diagram showing a state in which two upper parting dies are far apart from each other and the included angle of two hinge plates on the same side of the metal part is reduced, thus folding the two ends of the metal plate.

[0029] Figure 6 This is a cross-sectional view of an embodiment of a metal part one-time forming and bending device according to the present invention;

[0030] Figure 7 for Figure 6 Enlarged view of point A in the middle;

[0031] Figure 8This is a schematic diagram of the upper parting mold, lower parting mold, and lower top plate of an embodiment of a metal part one-time forming and bending equipment according to the present invention;

[0032] Figure 9 This is a front view of the upper and lower parting dies of an embodiment of a metal part one-time forming and bending device according to the present invention;

[0033] Figure 10 for Figure 9 Sectional view at point BB;

[0034] Figure 11 This is a cross-sectional view of the upper and lower parting dies of an embodiment of a metal part one-time forming and bending device according to the present invention;

[0035] Figure 12 This is a schematic diagram of the side mold of an embodiment of a metal part one-time forming and bending device according to the present invention;

[0036] Figure 13 This is a diagram showing the initial state of a bending device in the prior art.

[0037] Figure 14 This is a diagram showing the state of a metal sheet being bent using a bending device in the prior art.

[0038] In the diagram: 100, mounting plate; 110, telescopic column; 122, connecting rod; 123, air pipe; 124, air inlet; 200, base; 300, bottom mold; 400, side mold; 410, rotating shaft; 500, top block; 610, upper mold parting; 611, sliding rod; 620, lower mold parting; 621, sliding hole; 630, hinge plate; 641, upper top plate; 642, lower top plate; 710, inner oil cavity; 711, inner oil outlet; 720, outer oil cavity; 721, slider; 722, oil pipe. Detailed Implementation

[0039] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0040] An embodiment of the metal part one-time forming and bending equipment of the present invention, such as... Figures 1 to 12 As shown, it includes a base 200, a side mold 400, and a mounting plate 100.

[0041] A bottom mold 300 is provided above the base 200 and can move up and down; a spring is fixedly connected between the bottom mold 300 and the base 200.

[0042] Two side molds 400 are provided, symmetrically arranged on both sides of the bottom mold 300. The side molds 400 are L-shaped, including a horizontal section and a vertical section. One end of the horizontal section and the lower end of the vertical section are fixed. The horizontal section is located below the bottom mold 300. The junction of the horizontal and vertical sections of the side mold 400 is rotatably mounted on the base 200 via a rotating shaft 410. A torsion spring is connected between the rotating shaft 410 and the base 200. The horizontal section of the side mold 400 is located below the bottom mold 300, and the horizontal section of the side mold 400 abuts against the lower end of the bottom mold 300. Initially, the end of the horizontal section of the side mold 400 away from the rotating shaft 410 is inclined upward. A V-shaped top block 500 with its small end facing the bottom mold 300 is provided on the upper end of the vertical section of the side mold 400 near the side wall of the bottom mold 300. The top block 500 is slidably mounted on the side mold 400. A spring is connected between the top block 500 and the side mold 400.

[0043] Mounting plate 100 is mounted above bottom mold 300 via hydraulic components; telescopic column 110 is fixed at the lower end of mounting plate 100; the lower end of telescopic column 110 is fixedly connected to base 200 via connecting plate; a spring is connected between telescopic column 110 and connecting plate; hydraulic components include hydraulic cylinder; hydraulic cylinder is located at the upper end of mounting plate 100; hydraulic cylinder is fixedly connected to bracket and connecting plate; piston rod of hydraulic cylinder is fixedly connected to mounting plate 100.

[0044] An upper mold is provided below the mounting plate 100; the upper mold includes an upper parting mold 610 and a lower parting mold 620; two upper parting molds 610 are symmetrically arranged on the left and right, the lower ends of the upper parting molds 610 are inclined, and the lower ends of the two upper parting molds 610 form a V shape with the smaller end facing down; the upper parting mold 610 and the mounting plate 100 are connected by a connecting component; two lower parting molds 620 are symmetrically arranged on the left and right, the upper ends of the lower parting molds 620 are inclined, and the upper ends of the two lower parting molds 620 form a V shape with the smaller end facing up; the upper parting molds 610 and lower parting molds 620 on the same side are slidably engaged up and down by a telescopic component; the telescopic component includes a sliding hole 621 and a sliding rod 611; the sliding hole 621 is located at the upper end of the lower parting mold 620; the sliding rod 611 is located between the upper parting mold 610 and the lower parting mold 621, the upper end of the sliding rod 611 is fixedly connected to the upper parting mold 610, and the lower end is slidably engaged with the sliding hole 621. Two hinge plates 630 are provided between the lower end of the upper parting mold 610 and the upper end of the lower parting mold 620 on the same side. The two hinge plates 630 are hinged together in a V-shaped groove with the smaller end facing the symmetrical plane of the two upper parting molds 610. The upper hinge plate 630 is hinged to the upper parting mold 610, and the lower hinge plate 630 is hinged to the lower parting mold 620. The connecting assembly includes a connecting cylinder. The connecting cylinder is vertically arranged and horizontally slidably installed on the lower end of the mounting plate 100. A connecting rod 122 is slidably installed on the lower end of the connecting cylinder. The lower end of the connecting rod 122 is fixedly connected to the upper parting mold 610. A spring is connected between the connecting rod 122 and the connecting cylinder. The lower parting mold 620 has an air inlet 124 at its lower end; the connecting rod 122 and the connecting cylinder slide in a sealed manner; the connecting rod 122 is hollow and tubular inside; an air pipe 123 connects the connecting rod 122 and the air inlet 124; the air inlet 124 communicates with the connecting rod 122 and the connecting cylinder through the air pipe 123. When the lower parting mold 620 abuts against the bottom mold 300 and the mounting plate 100 continues to move downward, causing the connecting rod 122 to be inserted into the connecting cylinder, the connecting rod 122 compresses the air inside the connecting cylinder and blows it out through the air inlet 124, blowing off burrs and debris from the surface of the metal parts to prevent debris from affecting the bending effect.

[0045] During bending, the mounting plate 100 drives the upper die to move downwards, the lower parting die 620 abuts against the metal plate and presses the metal plate between the two side dies 400. The lower parting die 620 continues to move downwards and abuts against the bottom die 300, driving the bottom die 300 downwards to drive the vertical sections of the two side dies 400 to rotate towards the upper die. The top block 500 corresponds to the V-shaped groove formed by the two hinge plates 630 on the same side. The top block 500 enters the groove and moves downwards with the hinge plate 630. When the vertical section of the side die 400 and the lower parting die 620 are bent, the top block 500 moves downwards. When the sidewalls are parallel, the upper parting mold 610 is driven to move downward relative to the lower parting mold 620, making the included angle between the two hinge plates 630 smaller, causing the metal plate at the groove to bend and form. The bending is achieved by folding the two hinge plates 630, avoiding relative sliding between the top block 500 and the metal plate. This avoids the problem in the prior art where the metal plate is pulled and deformed due to the large moving resistance between the top block 500 and the metal plate during the process of the top block 500 squeezing the metal plate into the groove, thus avoiding affecting the appearance of the bent metal plate.

[0046] An internal lubrication assembly is provided at the slide rod 611; the slide rod 611 and the sliding hole 621 slide in a sealed manner; the internal lubrication assembly includes an internal oil cavity 710; the internal oil cavity 710 is opened in the lower parting mold 620 and is located below the sliding hole 621; the internal oil cavity 710 and the sliding hole 621 are connected, and the internal oil cavity 710 is provided with an internal oil outlet 711. When the upper parting mold 610 and the lower parting mold 620 approach each other, the slide rod 611 slides in the sliding hole 621, increasing the air pressure in the internal oil cavity 710, and forcing the lubricating oil in the internal oil cavity 710 out from the internal oil outlet 711 to lubricate the bent parts of the metal plate surface. An external lubrication assembly is also provided at the top block 500; the external lubrication assembly lubricates the bent parts at both ends of the metal plate. The external lubrication assembly includes an external oil cavity 720; the external oil cavity 720 is located at the upper end of the vertical section of the side mold 400; a slider 721 is slidably installed inside the external oil cavity 720; the slider 721 is inverted L-shaped and fixedly connected to the top block 500; both the top block 500 and the slider 721 are provided with oil pipes 722; the oil pipes 722 connect the external oil cavity 720 to the outside. When the top block 500 enters between the two hinge plates 630 and moves downward with the hinge plates 630, the top block 500 drives the slider 721 to move downward and squeeze the external oil cavity 720, causing the lubricating oil in the external oil cavity 720 to flow out from the top block 500 through the oil pipes 722, so as to lubricate the bent parts at both ends of the metal plate.

[0047] In this embodiment, the two upper parting molds 610 slide left and right together; a spring is fixedly connected between the two upper parting molds 610; the two lower parting molds 620 slide left and right together; a spring is fixedly connected between the two lower parting molds 620; the upper end of the upper parting mold 610 is inclined, and the upper ends of the two upper parting molds 610 form a V-shaped gap with the smaller end facing down; the lower end of the lower parting mold 620 is inclined, and the lower ends of the two lower parting molds 620 form a V-shaped gap with the smaller end facing up; an adjustment component is provided between the upper parting mold 610 and the lower parting mold 620. As the upper parting mold 610 and the lower parting mold 620 approach each other, the adjusting component drives the two upper parting molds 610 and the two lower parting molds 620 to move away synchronously, so that the side wall of the lower parting mold 620 abuts against the vertical section of the side mold 400, bending the metal plate into a U-shape. After bending, the spring between the two upper parting molds 610 and the two lower parting molds 620 drives the two upper parting molds 610 and the two lower parting molds 620 to approach each other synchronously, making it easier to remove the parts after the metal plate is bent. The adjusting assembly includes an upper top plate 641 and a lower top plate 642. The upper top plate 641 is located between the upper parting mold 610 and the mounting plate 100. The upper top plate 641 is fixed below the mounting plate 100. The lower end of the upper top plate 641 is a V-shape with the smaller end facing downwards. The lower top plate 642 is located between the bottom mold 300 and the lower parting mold 620. The upper end of the lower top plate 642 is a V-shape with the smaller end facing upwards. The inclined wall of the lower top plate 642 abuts against and slides with the inclined wall of the lower parting mold 620. The lower top plate 642 and the upper top plate 641 are fixedly connected by a telescopic rod. Initially, the upper top plate 641 and the upper parting mold 610 are in a separated state. When the top plate 642 abuts against the bottom mold 300, the mounting plate 100 continues to move downward, and the top plate 641 and the upper parting mold 610 abut against each other. The top plate 641 and the lower plate 642 drive the upper parting mold 610 and the lower parting mold 620 to move closer to each other, while driving the two upper parting molds 610 and the two lower parting molds 620 to move away simultaneously.

[0048] Based on the above embodiments, the operating principle and process of this invention are as follows: During bending, the metal plate is placed on the upper ends of the two side dies 400, and the hydraulic cylinder drives the mounting plate 100 to move downwards. The mounting plate 100 drives the upper die to move downwards through the connecting cylinder and connecting rod 122. The metal plate is pressed between the two side dies 400, and the upper die drives the bottom die 300 to continue moving downwards. The lower top plate 642 presses the metal plate against the bottom die 300, at which time the upper top plate 641 and the upper parting die 610 abut against each other. The mounting plate 100 continues to move downwards, and the mounting plate 100 drives the upper parting die 610 and the lower parting die 620 to move closer to each other through the upper top plate 641, while simultaneously driving the two upper parting dies 610 and the two lower parting dies 620 to move away synchronously. During this process, the lower parting mold 620 drives the bottom mold 300 to move down through the lower top plate 642, thereby driving the vertical sections of the two side molds 400 to rotate to the upper mold, so that the side wall of the lower parting mold 620 and the vertical sections of the side molds 400 abut against each other, bending the metal plate into a U-shape. Simultaneously, the top block 500 corresponds to the V-shaped groove formed by the two hinge plates 630 on the same side. The top block 500 enters the groove and moves downward with the hinge plates 630. When the vertical section of the side mold 400 is parallel to the side wall of the lower parting mold 620, the upper parting mold 610 is driven to move downward relative to the lower parting mold 620, making the included angle between the two hinge plates 630 smaller. This causes the metal plate at the groove to bend and form. The bending is achieved by folding the two hinge plates 630, avoiding relative sliding between the top block 500 and the metal plate. This avoids the problem in the prior art where the metal plate is pulled and deformed due to the large moving resistance between the top block 500 and the metal plate during the process of the top block 500 squeezing the metal plate into the groove, thus avoiding affecting the appearance of the bent metal plate.

[0049] During the above process, when the lower mold 620 abuts against the bottom mold 300 and the mounting plate 100 continues to move downwards, causing the connecting rod 122 to insert into the connecting cylinder, the connecting rod 122 compresses the air inside the connecting cylinder and blows it out through the air outlet 124, blowing off burrs and debris from the surface of the metal parts to prevent debris from affecting the bending effect. When the upper mold 610 and the lower mold 620 approach each other, the slide rod 611 slides in the slide hole 621, increasing the air pressure inside the inner oil cavity 710, and forcing the lubricating oil inside the inner oil cavity 710 out from the inner oil outlet 711 to lubricate the bent areas on the surface of the metal plate. When the top block 500 enters between the two hinge plates 630 and moves downwards with the hinge plates 630, the top block 500 drives the slider 721 to move downwards and squeeze the outer oil cavity 720, causing the lubricating oil inside the outer oil cavity 720 to flow out from the top block 500 through the oil pipe 722 to lubricate the bent areas at both ends of the metal plate.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A metal parts forming and bending equipment for one-time forming, characterized in that: include: A base has a bottom mold that can be moved up and down on top; a spring is fixedly connected between the bottom mold and the base. Two side molds are provided, symmetrically arranged on both sides of the bottom mold. The side molds are L-shaped, including a horizontal section and a vertical section. One end of the horizontal section and the lower end of the vertical section are fixed. The horizontal section is located below the bottom mold. The junction of the horizontal and vertical sections of the side mold is rotatably mounted on a base via a pivot, and a torsion spring connects the pivot and the base. The horizontal section of the side mold is located below the bottom mold, and the horizontal section of the side mold abuts against the lower end of the bottom mold. Initially, the end of the horizontal section of the side mold away from the pivot is inclined upward. The upper end of the vertical section of the side mold, near the side wall of the bottom mold, has a V-shaped top block with its small end facing the bottom mold. The top block is slidably mounted on the side mold. A spring connects the top block and the side mold. A mounting plate is positioned above the bottom mold via a hydraulic assembly that allows it to move up and down. Below the mounting plate is an upper mold. The upper mold includes an upper parting mold and a lower parting mold. Two upper parting molds are symmetrically arranged on the left and right sides, with their lower ends inclined and forming a V-shape with the smaller end facing down. The upper parting mold and the mounting plate are connected by a connecting assembly. Two lower parting molds are symmetrically arranged on the left and right sides, with their upper ends inclined and forming a V-shape with the smaller end facing up. The upper and lower parting molds on the same side slide together via a telescopic assembly. Two hinge plates are positioned vertically between the lower end of the upper parting mold and the upper end of the lower parting mold on the same side. The two hinge plates are hinged together by a V-shaped groove with the smaller end facing the symmetrical plane of the two upper parting molds. The upper hinge plate is hinged to the upper parting mold, and the lower hinge plate is hinged to the lower parting mold.

2. The metal parts one-time forming and bending equipment according to claim 1, characterized in that: The two upper parting dies slide sideways together; a spring is fixedly connected between the two upper parting dies; the two lower parting dies slide sideways together; a spring is fixedly connected between the two lower parting dies; the upper end of the upper parting die is inclined, and the upper ends of the two upper parting dies form a V-shaped gap with the smaller end facing down; the lower end of the lower parting die is inclined, and the lower ends of the two lower parting dies form a V-shaped gap with the smaller end facing up; an adjustment component is provided between the upper and lower parting dies; as the upper and lower parting dies approach each other, the adjustment component drives the two upper parting dies and the two lower parting dies to move away synchronously; after bending is completed, the spring between the two upper and two lower parting dies drives the two upper and two lower parting dies to approach synchronously.

3. The metal parts one-time forming and bending equipment according to claim 2, characterized in that: The adjustment assembly includes an upper top plate and a lower top plate; the upper top plate is located between the upper parting mold and the mounting plate; the upper top plate is fixed below the mounting plate; the lower end of the upper top plate is a V-shape with the smaller end facing down; the lower top plate is located between the bottom mold and the lower parting mold; the upper end of the lower top plate is a V-shape with the smaller end facing up; the inclined wall of the lower top plate and the inclined wall of the lower parting mold abut and slide together; the lower top plate and the upper top plate are fixedly connected by a telescopic rod.

4. The metal parts one-time forming and bending equipment according to claim 3, characterized in that: The connecting assembly includes a connecting cylinder; the connecting cylinder is vertically positioned and horizontally slidably mounted on the lower end of the mounting plate; a connecting rod is slidably mounted vertically on the lower end of the connecting cylinder; the lower end of the connecting rod is fixedly connected to the upper parting mold; a spring connects the connecting rod and the connecting cylinder.

5. The metal parts one-time forming and bending equipment according to claim 4, characterized in that: The lower parting mold has an air blowing port at the bottom; the connecting rod and the connecting cylinder slide in a sealed manner; the connecting rod is hollow and tubular inside; an air pipe connects the connecting rod and the air blowing port; the air blowing port is connected to the connecting rod and the connecting cylinder through the air pipe.

6. The metal parts one-time forming and bending equipment according to claim 1, characterized in that: The telescopic assembly includes a sliding hole and a sliding rod; the sliding hole is located at the upper end of the lower parting mold; the sliding rod is located between the upper parting mold and the lower parting mold, with the upper end of the sliding rod fixedly connected to the upper parting mold and the lower end slidingly engaged with the sliding hole.

7. A metal parts one-time forming and bending equipment according to claim 6, characterized in that: An internal lubrication assembly is provided at the slide rod; the slide rod and the slide hole are sealed and slide; the internal lubrication assembly includes an internal oil cavity; the internal oil cavity is opened in the lower parting mold and is located below the slide hole; the internal oil cavity and the slide hole are connected, and the internal oil cavity is provided with an internal oil outlet.

8. The metal parts one-time forming and bending equipment according to claim 1, characterized in that: An external lubrication assembly is also provided at the top block; the external lubrication assembly lubricates the bent ends of the metal plate.

9. A metal parts one-time forming and bending equipment according to claim 8, characterized in that: The external lubrication assembly includes an external oil cavity; the external oil cavity is located at the upper end of the vertical section of the side mold; a slider is sealed and slidably installed inside the external oil cavity; the slider is inverted L-shaped and fixedly connected to the top block; oil pipes are provided inside both the top block and the slider; the oil pipes connect the external oil cavity to the outside.

10. A one-time forming and bending equipment for metal parts according to claim 1, characterized in that: A telescopic column is fixed to the lower end of the mounting plate; the lower end of the telescopic column is fixedly connected to the base through a connecting plate; a spring is connected between the telescopic column and the connecting plate; the hydraulic assembly includes a hydraulic cylinder; the hydraulic cylinder is located on the upper end of the mounting plate; the hydraulic cylinder is fixedly connected to the connecting plate through a bracket; the piston rod of the hydraulic cylinder is fixedly connected to the mounting plate.

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