阅读说明：本技术 一种led路灯壳体生产装置 (LED street lamp casing apparatus for producing ) 是由 熊里军 于 2021-09-14 设计创作，主要内容包括：本发明涉及路灯生产领域,具体是一种LED路灯壳体生产装置,包括底板和冲压机构；所述冲压机构安装在底板上,冲压机构包括固定模单元和活动模单元；所述固定模单元包括对半设置的下模、导向杆和一号弹簧；所述下模的下端面通过一号弹簧滑动连接在底板上开设的滑槽内,一号弹簧内圈内安置导向杆,导向杆贯穿下模并固接于滑槽的内端面侧壁；所述下模的上端开设凹槽,凹槽的槽口靠外边缘开设一号斜面；所述活动模单元包括上模；所述上模的上端连接于液压缸,液压缸通过支架固定在底板上,上模的下板面开设一级凹部,一级凹部内开设二级凹部,上模的边缘位置开设二号斜面,且二号斜面与一号斜面平行。(The invention relates to the field of street lamp production, in particular to a production device of an LED street lamp shell, which comprises a bottom plate and a stamping mechanism, wherein the bottom plate is provided with a plurality of grooves; the stamping mechanism is arranged on the bottom plate and comprises a fixed die unit and a movable die unit; the fixed die unit comprises a lower die, a guide rod and a first spring which are arranged in half; the lower end face of the lower die is connected in a sliding groove formed in the bottom plate in a sliding mode through a first spring, a guide rod is arranged in an inner ring of the first spring, penetrates through the lower die and is fixedly connected to the side wall of the inner end face of the sliding groove; the upper end of the lower die is provided with a groove, and a first inclined plane is arranged close to the outer edge of a notch of the groove; the movable die unit comprises an upper die; the upper end of the upper die is connected to the hydraulic cylinder, the hydraulic cylinder is fixed on the bottom plate through the support, the lower plate surface of the upper die is provided with a first-stage concave part, a second-stage concave part is arranged in the first-stage concave part, the edge position of the upper die is provided with a second inclined surface, and the second inclined surface is parallel to the first inclined surface.)

1. The utility model provides a LED street lamp casing apparatus for producing which characterized in that: comprises a bottom plate (1) and a punching mechanism; the stamping mechanism is arranged on the bottom plate (1) and comprises a fixed die unit and a movable die unit; the fixed die unit comprises a lower die (2) arranged in half, a guide rod (3) and a first spring (4); the lower end face of the lower die (2) is connected in a sliding groove (5) formed in the bottom plate (1) in a sliding mode through a first spring (4), a guide rod (3) is arranged in an inner ring of the first spring (4), and the guide rod (3) penetrates through the lower die (2) and is fixedly connected to the side wall of the inner end face of the sliding groove (5); a groove (6) is formed in the upper end of the lower die (2), and a first inclined plane (7) is formed in the position, close to the outer edge, of a notch of the groove (6);

the movable mould unit comprises an upper mould (8); the upper end of the upper die (8) is connected to the hydraulic cylinder, the hydraulic cylinder is fixed on the bottom plate (1) through the support, the lower plate surface of the upper die (8) is provided with a first-level concave part (9), a second-level concave part (10) is arranged in the first-level concave part (9), the edge position of the upper die (8) is provided with a second inclined surface (11), and the second inclined surface (11) is parallel to the first inclined surface (7).

2. The LED street lamp shell production device as claimed in claim 1, wherein: a prepressing unit is arranged on the upper die (8); the prepressing comprises a prepressing rod (12), a second spring (13) and a sucker (14); the pre-pressing rod (12) penetrates through the second concave part in a sliding mode, the upper end of the pre-pressing rod (12) is connected to the upper plate surface of the upper die (8) through a second spring (13), and the lower end of the pre-pressing rod (12) is fixedly connected with a sucker (14).

3. The LED street lamp shell production device as claimed in claim 2, wherein: an air exhaust unit is arranged on the upper plate surface of the upper die (8); the air extraction unit comprises a drawing rod (15), an air extraction cylinder (16) and an air extraction pipe (17); the interior of the pre-pressing rod (12) is hollow, and the lower end of the pre-pressing rod (12) is communicated with the sucker (14); the air pump cylinder (16) is fixedly connected to the upper die (8), the air pump cylinder (16) is in sliding sealing connection with the drawing rod (15), the upper end of the drawing rod (15) is fixedly connected to the upper end of the prepressing rod (12) through a connecting plate, and the lower end of the air pump cylinder (16) is communicated with the hollow portion of the prepressing rod (12) through an air pump pipe (17).

4. The LED street lamp shell production device as claimed in claim 1, wherein: rotary grooves (18) are formed in the upper edge positions of the opposite side walls of the two lower dies (2), and a V-shaped rod (19), a rotating shaft (20), a torsion spring (21) and a push rod (22) are arranged in each rotary groove (18); the middle position of the V-shaped rod (19) is rotatably connected to the rotating shaft (20) through a torsion spring (21), two ends of the rotating shaft (20) are fixedly connected to the inner side wall of the rotating groove (18), and the upper ends of two adjacent V-shaped rods (19) are rotatably connected with a cylindrical push rod (22).

5. The LED street lamp shell production device as claimed in claim 4, wherein: a placing groove is formed in the opposite side wall of the lower die (2), and a piston rod (23), a piston cylinder (24) and a third spring (25) are arranged in the placing groove; the piston cylinder (24) is fixedly connected in the placing groove, and the piston rod (23) is connected in the piston cylinder (24) in a sliding mode through a third spring (25); an oil inlet pipeline (26) and an oil outlet pipeline (27) are arranged in the lower die (2); oil inlet pipe way (26) and oil outlet pipe way (27) communicate in piston cylinder (24), the oil feed end of oil inlet pipe way (26) communicates in external lubricating oil barrel, be equipped with check valve (28) on oil outlet pipe way (27), the exit end of oil outlet pipe way (27) passes through the inside hollow position department of seting up of hose intercommunication V-arrangement pole (19), the upper end of V-arrangement pole (19) communicates in cavity (29) of seting up of push rod (22) inside, and a plurality of oil outlet (30) are seted up on push rod (22) surface, oil outlet (30) communicate in cavity (29).

6. The LED street lamp shell production device as claimed in claim 5, wherein: the inner hole end of the oil outlet hole (30) is provided with a pressure spring (31) and a plugging head (32); the sectioning surface of the oil outlet hole (30) is in a wide-mouth horn shape, the blocking head (32) is adaptive to the shape of the oil outlet hole (30), and the inner end of the blocking head (32) is connected to the position of the inner hole end of the oil outlet hole (30) through a pressure spring (31).

7. The LED street lamp shell production device as claimed in claim 6, wherein: an annular rubber ring (33) is arranged on the outer side wall of the outer end part of the blocking head (32), the inner ring of the rubber ring (33) is fixedly connected with the blocking head (32), and the outer edge of the rubber ring (33) is attached and extruded at the position of the outer hole end of the oil outlet hole (30); the rubber ring (33) is fixedly connected with a sealing ring (34) at the fixed connection position of the inner ring and the plugging head (32), and the end part of the sealing ring (34) is embedded into an annular groove (35) arranged at the outer hole end position of the oil outlet hole (30).

8. The LED street lamp shell production device as claimed in claim 7, wherein: a plurality of sliding holes (36) are formed in the inner bottom surface of the annular groove (35), a fixing rod (37) is arranged in each sliding hole (36), the middle position of each fixing rod (37) is connected to the inner side wall of each sliding hole (36) in a sealing mode through a rubber sheet (38), one end of each fixing rod (37) is arc-shaped and is matched with the outer surface of the end portion of the sealing ring (34), and the other end of each fixing rod (37) is embedded into a fixing groove (39) formed in the side wall of the plugging portion.

9. The LED street lamp shell production device as claimed in claim 7, wherein: the edge of the outer ring of the rubber ring (33) is provided with a plurality of antennae (40), and the tips of the antennae (40) are pressed against the outer surface of the push rod (22).

10. The LED street lamp shell production device as claimed in claim 5, wherein: the branch of the oil outlet pipeline (27) extends to the first inclined plane (7).

Technical Field

The invention relates to the field of street lamp production, in particular to a production device for an LED street lamp shell.

Background

The LED street lamp shell plays a role in protecting the LED lamp post and the circuit board from dust and rain, and is produced by using a plastic material or a metal material when the LED street lamp shell is produced generally; plastic housings are generally made by injection molding.

According to the stamping die that patent application number 2018111321447 provided, including last mould and lower mould, it is located the lower mould directly over to go up the mould, the upper end fixedly connected with punching machine of last mould, the lower mould is including supporting board and upper and lower both ends open-ended frame that supports, the lateral wall of supporting board and the inside casing wall sliding connection who supports the frame, the screens mechanism is installed to the symmetry on the lateral wall of supporting board, support the annular solid fixed ring of lower extreme fixedly connected with of frame, support the lower extreme center department fixedly connected with support column of board, the lower extreme of support column passes solid fixed ring and downwardly extending, and fixedly connected with backup pad, the lower extreme of supporting board uses the support column to be a plurality of extension spring of the even equidistance of annular as the center, the other end fixed connection of extension spring is in solid fixed ring's upper end.

The shell made of a metal material is generally manufactured by stamping, a metal plate blank is placed on stamping equipment to be bent or stamped and sheared into a shape, and after the plate blank is stamped by the stamping die, the concave surface of the stamped blank is wrapped and extruded on the stamping die, so that the stamped blank is inconvenient to take down.

Therefore, the invention provides a device for producing an LED street lamp shell.

Disclosure of Invention

In order to solve the problem that in the prior art, the concave surface of a stamping blank of an LED street lamp shell is wrapped and extruded on a stamping die, so that the stamped blank is inconvenient to take down, the invention provides an LED street lamp shell production device, which comprises a bottom plate and a stamping mechanism; the stamping mechanism is arranged on the bottom plate and comprises a fixed die unit and a movable die unit; the fixed die unit comprises a lower die, a guide rod and a first spring which are arranged in half; the lower end face of the lower die is connected in a sliding groove formed in the bottom plate in a sliding mode through a first spring, a guide rod is arranged in an inner ring of the first spring, penetrates through the lower die and is fixedly connected to the side wall of the inner end face of the sliding groove; the upper end of the lower die is provided with a groove, and a first inclined plane is arranged close to the outer edge of a notch of the groove;

the movable die unit comprises an upper die; the upper end of the upper die is connected to a hydraulic cylinder, the hydraulic cylinder is fixed on the bottom plate through a support, a first-stage concave part is formed in the lower plate surface of the upper die, a second-stage concave part is formed in the first-stage concave part, a second inclined surface is formed in the edge position of the upper die, and the second inclined surface is parallel to the first inclined surface; at first place panel on the lower mould, then push down the mould through the control pneumatic cylinder, go up the mould and be close to in the lower mould gradually, and be close to the in-process, an inclined plane is earlier with the attached extrusion of No. two inclined planes, make two lower moulds keep away from each other, finally go up in the both sides embedding recess of mould, the interior top surface of one-level concave part pushes down panel, panel is buckled and is attached on the inner wall of recess, the punching press of realizing panel this moment is buckled, then the pneumatic cylinder resets, go up the mould and keep away from the lower mould, then two lower moulds are under the spring action of a spring, two lower moulds are close to each other, clearance fit between lower mould and the blank this moment, the blank is in free state promptly, make things convenient for taking off of blank, reduce the labour, improve and get material efficiency, accelerate the production of LED street lamp casing.

Preferably, a pre-pressing unit is arranged on the upper die; the prepressing comprises a prepressing rod, a second spring and a sucker; the pre-pressing rod penetrates through the second concave part in a sliding mode, the upper end of the pre-pressing rod is connected to the upper plate surface of the upper die through a second spring, and the lower end of the pre-pressing rod is fixedly connected with a sucker; in the stamping process, the two lower dies move away from each other relatively, and the friction force between the plate and the two lower dies is different, so that when the two lower dies are away from each other relatively, the position of the plate can deviate, and the stamping accuracy of the plate is influenced; in the process that the upper die is close to the lower die, the pre-pressing rod adsorbs the sucker on the plate, so that the plate is fixed, the upper die moves downwards continuously, the second spring is pulled upwards at the upper end of the pre-pressing rod, meanwhile, the sucker is arranged in the second-stage concave part, the inner edge of the first-stage concave part is pressed downwards, and the plate is bent and deformed; through pre-compaction unit, realize fixing in advance of panel, prevent that the removal of lower mould from driving the panel position deviation to appear, lead to the emergence of panel punching press inaccuracy phenomenon.

Preferably, the upper plate surface of the upper die is provided with an air exhaust unit; the air extraction unit comprises a drawing rod, an air extraction cylinder and an air extraction pipe; the interior of the pre-pressing rod is hollow, and the lower end of the pre-pressing rod is communicated with the sucker; the air suction cylinder is fixedly connected to the upper die, the air suction cylinder is in sliding sealing connection with the pull rod, the upper end of the pull rod is fixedly connected to the upper end of the pre-pressing rod through a connecting plate, and the lower end of the air suction cylinder is communicated with the hollow part of the pre-pressing rod through an air suction pipe; the upper end of the pre-pressing rod gradually extends upwards, meanwhile, the upper end of the pre-pressing rod pulls the pull rod through the connecting plate, negative pressure is gradually formed in the air exhaust cylinder, air between the suction cup and the plate is sucked into the air exhaust cylinder again at the moment, the negative pressure between the suction cup and the plate is increased, and therefore the adsorption stability between the suction cup and the plate is further improved; the upper die moves upwards, the pre-pressing rod does not extrude the plate any more, the pre-pressing rod resets under the elasticity of the second spring, meanwhile, the drawing rod blows gas of the pumping cylinder into the sucker, the sucker is separated from the plate, and the plate is placed in a free state and taken down.

Preferably, the upper edge positions of the opposite side walls of the two lower dies are provided with rotary grooves, and each rotary groove is internally provided with a V-shaped rod, a rotary shaft, a torsion spring and a push rod; the middle position of each V-shaped rod is rotationally connected to the rotating shaft through a torsion spring, two ends of the rotating shaft are fixedly connected to the inner side wall of the rotating groove, and the upper ends of two adjacent V-shaped rods are rotationally connected with a cylindrical push rod; after the plate is punched and formed, the plate is placed on the lower die, namely the plate is attached to the upper plate surface of the upper die, when the plate is taken, an operator needs to eject the blank from the groove, the blank is not convenient to take down, and therefore, the blank is pushed upwards by arranging the push rod so that the blank is placed above the lower die, and the material taking is convenient; the upper die moves upwards, the prepressing rod is separated from the plate, the two lower dies are close to each other, meanwhile, the lower ends of the V-shaped rods are extruded oppositely, the upper ends of the V-shaped rods gradually push the push rods upwards, the plate is placed above the lower dies by the push rods, and at the moment, a space is reserved between the plate and the lower dies, so that the plate can be conveniently inserted by hands or clamped and taken down by a clamp body, the operation is convenient, and the material taking efficiency is improved; in-process is kept away from relatively at two lower moulds, and the V-arrangement pole is under the torsion of torsional spring, and the V-arrangement pole rotates the push rod to the commentaries on classics inslot, and the push rod is less than the last face of lower mould this moment for panel is stably put on the lower mould.

Preferably, the opposite side walls of the lower die are provided with placing grooves, and piston rods, piston cylinders and third springs are arranged in the placing grooves; the piston cylinder is fixedly connected in the placing groove, and the piston rod is connected in the piston cylinder in a sliding manner through a third spring; an oil inlet pipeline and an oil outlet pipeline are arranged in the lower die; the oil inlet pipeline and the oil outlet pipeline are communicated with the piston cylinder, the oil inlet end of the oil inlet pipeline is communicated with an external lubricating oil drum, the oil outlet pipeline is provided with a one-way valve, the outlet end of the oil outlet pipeline is communicated with a hollow position arranged inside the V-shaped rod through a hose, the upper end of the V-shaped rod is communicated with a cavity arranged inside the push rod, the surface of the push rod is provided with a plurality of oil outlet holes, and the oil outlet holes are communicated with the cavity; when the push rod pushes the plate upwards, rolling friction is generated between the push rod and the surface of the plate, the friction can generate abrasion on the inner surface of the plate, when the punched LED street lamp shell is painted for decoration and protection, only the outer surface of the shell is sprayed, and the inner surface is not sprayed, so that when the plate is punched, the inner surface protection of the plate needs to be considered, and therefore, the plate is lubricated and protected through lubricating oil; when two lower moulds are close to, the extrusion piston rod, in the cavity that the piston rod squeezed into the push rod with the lubricating oil of piston cylinder in through oil outlet pipe and hose, lubricating oil was followed the oil outlet blowout, and lubricating oil sprays on the lower mould, on the outer lane of push rod and on the panel for the push rod surface forms the one deck oil film, keeps apart between panel and the push rod, thereby realizes the protection to the panel internal surface.

Preferably, the inner hole end of the oil outlet is provided with a pressure spring and a plugging head; the section of the oil outlet hole is in a wide-mouth horn shape, the shape of the blocking head is matched with that of the oil outlet hole, and the inner end of the blocking head is connected to the position of the inner hole end of the oil outlet hole through a pressure spring; before the sheet material is punched, the whole large sheet material is generally cut by a laser through shearing, or cut by an electric saw, and after the laser cutting, a plurality of small particles cooled by melting are remained on the surface of the sheet material, when the electric saw cuts, some cutting chips can remain on the plate, the push rod rotates on the inner surface of the plate, the small particles and the scraps can block the oil outlet hole to influence the spraying of the lubricating oil, therefore, the blocking head is arranged in the oil outlet hole, the blocking head is made of soft rubber materials, so that when hard metal or plastic is selected, the blocking head is blocked in the oil outlet hole, the oil pressure of the lubricating oil pushes the blocking head out of the oil outlet hole, the lubricating oil flows out, when not having lubricating oil pressure, the shutoff resets through the pressure spring, and the shutoff oil outlet once more blocks off little particulate matter and piece outside the oil outlet, reduces the possibility that the oil outlet is blockked up.

Preferably, an annular rubber ring is arranged on the outer side wall of the outer end part of the plugging head, the inner ring of the rubber ring is fixedly connected with the plugging head, and the outer edge of the rubber ring is attached and extruded at the position of the outer hole end of the oil outlet; a sealing ring is fixedly connected to the fixed connection position of the rubber ring inner ring and the plugging head, and the end part of the sealing ring is embedded into an annular groove formed in the position of an outer hole end of the oil outlet; the shutoff resets through the pressure spring, in the shutoff embedding oil outlet, the rubber circle pushes away peripheral little particulate matter of oil outlet and clastic simultaneously, then under the flow of lubricating oil, bring little particulate matter and clastic into the rotary trough, prevent little particulate matter and clastic adhesion on the push rod, with panel internal surface friction damage, and the sealing ring embedding is in the ring channel, increase the leakproofness between shutoff head and the oil outlet, improve the leakproofness of shutoff head after packing to the oil outlet, when panel extrudeing each other in the shutoff head, improve the leakproofness, prevent that lubricating oil from overflowing, thereby make more lubricating oil from the oil outlet blowout of being clogged by the shutoff head, improve the range that lubricating oil sprays and the face region on the panel, make more face regions on the panel can be protected.

Preferably, the bottom surface in the annular groove is provided with a plurality of sliding holes, fixed rods are arranged in the sliding holes, the middle positions of the fixed rods are hermetically connected to the inner side walls of the sliding holes through rubber sheets, one ends of the fixed rods are arc-shaped and are matched with the outer surface of the end part of the sealing ring, and the other ends of the fixed rods are embedded in fixed grooves formed in the side walls of the plugs; the edge embedding of sealing ring is in the ring channel, and the dead lever is resumeed in the sealing ring extrusion simultaneously, and the dead lever is dragged the sheetmetal and is embedded in the fixed slot for form closed auto-lock between shutoff head, sealing ring and the dead lever three, and will shutoff head to middle extrusion, make the intermediate position of oil outlet arranged in to the shutoff head, improve the leakproofness between shutoff head and the oil outlet.

Preferably, a plurality of antennae are arranged at the edge of the outer ring of the rubber ring, and the tips of the antennae are propped against the outer surface of the push rod; the downthehole in-process of shutoff head embedding oil outlet, the attached extrusion of outward flange of rubber circle is at the surface of push rod, and rubber circle drives the feeler simultaneously and removes, and the most advanced of feeler promotes the piece of push rod surface adhesion, then takes away through the flow of lubricating oil, prevents that the piece adhesion from piling up on the push rod surface, causes wearing and tearing to panel internal surface.

Preferably, the branch of the oil outlet pipeline extends to the first inclined surface, and the lubricating oil flows to the first inclined surface, so that a layer of oil film is formed on the first inclined surface, the abrasion between the first inclined surface and the second inclined surface is reduced, and the service lives of the lower die and the upper die are prolonged.

The invention has the advantages that:

1. the pneumatic cylinder resets, goes up the mould and keeps away from the lower mould, then two lower moulds are close to each other under the spring action of a spring, clearance fit between lower mould and the blank this moment, and the blank is in free state promptly, makes things convenient for taking off of blank, reduces the labour, improves and gets material efficiency for the production of LED street lamp casing.

2. Through pre-compaction unit, realize fixing in advance of panel, prevent that the removal of lower mould from driving the panel position deviation to appear, lead to the emergence of panel punching press inaccuracy phenomenon.

3. Two lower moulds are close to each other, and the lower extreme of V-arrangement pole extrudees relatively simultaneously, and the upper end of V-arrangement pole pushes up the push rod gradually, and the top of lower mould is arranged in to panel to the push rod, makes things convenient for the centre gripping of staff's the inserting or the pincers body to panel to take off this moment between panel and the lower mould, and convenient operation improves and gets material efficiency.

4. The piston rod squeezes into the cavity of push rod with the lubricating oil of piston cylinder in-suction through oil outlet pipe and hose in, lubricating oil from the oil outlet blowout, lubricating oil sprays on the lower mould, on the outer lane of push rod and on the panel for the push rod surface forms the one deck oil film, keeps apart between panel and the push rod, thereby realizes the protection to the panel internal surface.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a perspective view of an LED street lamp housing production device according to the present invention;

FIG. 2 is a sectional view of the LED street lamp housing production device in the invention;

FIG. 3 is a cross-sectional view of the push rod of the present invention;

FIG. 4 is a matching view of the plugging head and the oil outlet hole in the invention;

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

FIG. 6 is a view showing the connection between the branch pipes of the outlet pipeline and the first inclined plane according to the second embodiment;

in the figure: the device comprises a bottom plate 1, a lower die 2, a guide rod 3, a first spring 4, a sliding groove 5, a groove 6, a first inclined plane 7, an upper die 8, a first-stage concave part 9, a second-stage concave part 10, a second inclined plane 11, a pre-pressing rod 12, a second spring 13, a sucker 14, a pull rod 15, an air suction tube 16, an air suction tube 17, a rotary groove 18, a V-shaped rod 19, a rotary shaft 20, a torsion spring 21, a push rod 22, a piston rod 23, a piston cylinder 24, a third spring 25, an oil inlet pipeline 26, an oil outlet pipeline 27, a one-way valve 28, a cavity 29, an oil outlet 30, a pressure spring 31, a sealing head 32, a rubber ring 33, a sealing ring 34, an annular groove 35, a sliding hole 36, a fixing rod 37, a rubber sheet 38, a fixing groove 39 and a feeler 40.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1-5, the device for producing the LED street lamp shell comprises a bottom plate 1 and a stamping mechanism; the stamping mechanism is arranged on the bottom plate 1 and comprises a fixed die unit and a movable die unit; the fixed die unit comprises a lower die 2, a guide rod 3 and a first spring 4 which are arranged in half; the lower end face of the lower die 2 is slidably connected in a sliding groove 5 formed in the bottom plate 1 through a first spring 4, a guide rod 3 is arranged in an inner ring of the first spring 4, and the guide rod 3 penetrates through the lower die 2 and is fixedly connected to the side wall of the inner end face of the sliding groove 5; a groove 6 is formed in the upper end of the lower die 2, and a first inclined plane 7 is formed near the outer edge of a notch of the groove 6;

the movable mould unit comprises an upper mould 8; the upper end of the upper die 8 is connected to a hydraulic cylinder, the hydraulic cylinder is fixed on the bottom plate 1 through a support, a first-stage concave part 9 is formed in the lower plate surface of the upper die 8, a second-stage concave part 10 is formed in the first-stage concave part 9, a second inclined surface 11 is formed in the edge position of the upper die 8, and the second inclined surface 11 is parallel to the first inclined surface 7; at first place panel on lower mould 2, then push down mould 8 through the control pneumatic cylinder, it is close to in lower mould 2 gradually to go up mould 8, and being close to the in-process, inclined plane 7 earlier with the attached extrusion of No. two inclined planes 11, make two lower moulds 2 keep away from each other, finally go up in mould 8's both sides embedding recess 6, the interior top surface of one-level concave part 9 pushes down panel, panel is buckled and attaches on the inner wall of recess 6, the punching press of realizing panel is buckled this moment, then the pneumatic cylinder resets, it keeps away from lower mould 2 to go up mould 8, then two lower moulds 2 are under spring 4's elastic action, two lower moulds 2 are close to each other, clearance fit between lower mould 2 and the blank this moment, namely, the blank is in free state, make things convenient for taking off of blank, the labour reduces and gets material efficiency, accelerate the production of LED street lamp casing.

A pre-pressing unit is arranged on the upper die 8; the prepressing comprises a prepressing rod 12, a second spring 13 and a sucker 14; the pre-pressing rod 12 penetrates through the second concave part in a sliding mode, the upper end of the pre-pressing rod 12 is connected to the upper plate surface of the upper die 8 through a second spring 13, and the lower end of the pre-pressing rod 12 is fixedly connected with a sucking disc 14; in the stamping process, the two lower dies 2 are relatively far away from and move, and the friction force between the plate and the two lower dies 2 is different, so that when the two lower dies 2 are relatively far away from, the position of the plate can deviate, and the stamping accuracy of the plate is influenced, therefore, the plate is fixed in advance by arranging the pre-pressing unit on the upper die 8; in the process that the upper die 8 is close to the lower die 2, the pre-pressing rod 12 adsorbs the sucker 14 on the plate, so that the plate is fixed, the upper die 8 continues to move downwards, the second spring 13 is pulled upwards at the upper end of the pre-pressing rod 12, meanwhile, the sucker 14 is arranged in the second-stage concave part 10, the inner edge of the first-stage concave part 9 is pressed downwards, and the plate is bent and deformed; through pre-compaction unit, realize fixing in advance of panel, prevent that the removal of lower mould 2 from driving the panel position deviation to appear, lead to the emergence of panel punching press inaccuracy phenomenon.

An air exhaust unit is arranged on the upper plate surface of the upper die 8; the air suction unit comprises a drawing rod 15, an air suction cylinder 16 and an air suction pipe 17; the interior of the pre-pressing rod 12 is hollow, and the lower end of the pre-pressing rod 12 is communicated with the sucker 14; the air suction cylinder 16 is fixedly connected to the upper die 8, the air suction cylinder 16 is in sliding sealing connection with the pull rod 15, the upper end of the pull rod 15 is fixedly connected to the upper end of the prepressing rod 12 through a connecting plate, and the lower end of the air suction cylinder 16 is communicated with the hollow part of the prepressing rod 12 through an air suction pipe 17; the upper end of the pre-pressing rod 12 gradually extends upwards, meanwhile, the upper end of the pre-pressing rod 12 pulls the drawing rod 15 through the connecting plate, negative pressure is gradually formed in the air extracting cylinder 16, air between the suction cup 14 and the plate is also sucked into the air extracting cylinder 16 again at the moment, the negative pressure between the suction cup 14 and the plate is increased, and therefore the adsorption stability between the suction cup 14 and the plate is further improved; the upper die 8 moves upwards, the pre-pressing rod 12 does not extrude the plate any more, the pre-pressing rod 12 resets under the elastic force of the second spring 13, meanwhile, the drawing rod 15 blows air of the air pumping cylinder 16 into the suction cup 14, the suction cup 14 is separated from the plate, and the plate is placed in a free state and taken down.

Rotary grooves 18 are formed in the upper edge positions of the opposite side walls of the two lower dies 2, and a V-shaped rod 19, a rotating shaft 20, a torsion spring 21 and a push rod 22 are arranged in each rotary groove 18; the middle position of each V-shaped rod 19 is rotatably connected to a rotating shaft 20 through a torsion spring 21, two ends of each rotating shaft 20 are fixedly connected to the inner side wall of each rotating groove 18, and the upper ends of two adjacent V-shaped rods 19 are rotatably connected with a cylindrical push rod 22; after the plate is punched and formed, the plate is placed on the lower die 2, namely the plate is attached to the upper plate surface of the upper die 8, when the material is taken, an operator also needs to eject the blank from the groove 6, the blank is not convenient to take down, and therefore, the blank is pushed upwards by arranging the push rod 22, so that the blank is placed above the lower die 2, and the material is convenient to take; the upper die 8 moves upwards, the prepressing rod 12 is separated from the plate, the two lower dies 2 are close to each other, meanwhile, the lower ends of the V-shaped rods 19 are extruded relatively, the push rods 22 are gradually pushed upwards by the upper ends of the V-shaped rods 19, the plate is placed above the lower dies 2 by the push rods 22, and at the moment, a space is left between the plate and the lower dies 2, so that the plate can be conveniently inserted by hands or clamped and taken down by a clamp body, the operation is convenient, and the material taking efficiency is improved; in the process that the two lower dies 2 are relatively far away, the V-shaped rod 19 rotates the push rod 22 into the rotary groove 18 under the torsion force of the torsion spring 21, and at the moment, the push rod 22 is lower than the upper plate surface of the lower die 2, so that the plate is stably placed on the lower die 2.

A placing groove is formed in the opposite side wall of the lower die 2, and a piston rod 23, a piston cylinder 24 and a third spring 25 are arranged in the placing groove; the piston cylinder 24 is fixedly connected in the placing groove, and the piston rod 23 is connected in the piston cylinder 24 in a sliding manner through a third spring 25; an oil inlet pipeline 26 and an oil outlet pipeline 27 are arranged in the lower die 2; the oil inlet pipeline 26 and the oil outlet pipeline 27 are communicated with the piston cylinder 24, the oil inlet end of the oil inlet pipeline 26 is communicated with an external lubricating oil barrel, the oil outlet pipeline 27 is provided with a one-way valve 28, the outlet end of the oil outlet pipeline 27 is communicated with a hollow position arranged in the V-shaped rod 19 through a hose, the upper end of the V-shaped rod 19 is communicated with a cavity 29 arranged in the push rod 22, the surface of the push rod 22 is provided with a plurality of oil outlet holes 30, and the oil outlet holes 30 are communicated with the cavity 29; when the push rod 22 pushes up the plate, rolling friction occurs between the push rod 22 and the surface of the plate, the friction can cause abrasion to the inner surface of the plate, when the stamped LED street lamp shell is painted for decoration protection, only a spray head is arranged on the outer surface of the shell, and the inner surface is not sprayed, so that when the plate is stamped, the protection of the inner surface of the plate needs to be considered, and therefore, the plate is lubricated and protected by lubricating oil; when the two lower dies 2 are close to each other, the piston rod 23 is extruded, lubricating oil pumped into the piston cylinder 24 by the piston rod 23 is pumped into the cavity 29 of the push rod 22 through the oil outlet pipeline 27 and the hose, the lubricating oil is sprayed out from the oil outlet hole 30, and the lubricating oil is sprayed on the lower dies 2, the outer ring of the push rod 22 and a plate, so that a layer of oil film is formed on the surface of the push rod 22, the plate and the push rod 22 are isolated from each other, and the inner surface of the plate is protected.

The inner hole end of the oil outlet hole 30 is provided with a pressure spring 31 and a plugging head 32; the section of the oil outlet hole 30 is in a wide-mouth horn shape, the sealing head 32 is matched with the oil outlet hole 30 in shape, and the inner end of the sealing head 32 is connected to the position of the inner hole end of the oil outlet hole 30 through a pressure spring 31; before the sheet material is punched, the whole large sheet material is generally cut by a laser through shearing, or cut by an electric saw, and after the laser cutting, a plurality of small particles cooled by melting are remained on the surface of the sheet material, when the electric saw cuts, some cutting chips remain on the plate, the push rod 22 rotates on the inner surface of the plate, and the small particles and the debris can block the oil outlet hole 30 to influence the spraying of the lubricating oil, for this reason, by arranging the plugging head 32 in the oil outlet hole 30, the plugging head 32 is made of soft rubber materials, so that when hard metal or plastic is selected, the blocking head 32 is blocked in the oil outlet 30, the oil pressure of the lubricating oil pushes the blocking head 32 out of the oil outlet 30, the lubricating oil flows out, when no lubricating oil pressure exists, the plugging is restored through the pressure spring 31, the oil outlet hole 30 is plugged again, small particles and debris are blocked outside the oil outlet hole 30, and the possibility that the oil outlet hole 30 is blocked is reduced.

An annular rubber ring 33 is arranged on the outer side wall of the outer end part of the blocking head 32, the inner ring of the rubber ring 33 is fixedly connected with the blocking head 32, and the outer edge of the rubber ring 33 is attached and extruded at the position of the outer hole end of the oil outlet 30; a sealing ring 34 is fixedly connected to the fixed connection position of the inner ring of the rubber ring 33 and the plugging head 32, and the end part of the sealing ring 34 is embedded into an annular groove 35 arranged at the outer hole end position of the oil outlet 30; the plugging is reset through a pressure spring 31, the plugging head 32 is embedded into the oil outlet 30, meanwhile, the rubber ring 33 pushes away small particles and scraps around the oil outlet 30, then the small particles and the scraps are brought into the rotary groove 18 under the flowing of lubricating oil, the small particles and the scraps are prevented from being adhered to the push rod 22, the inner surface of the plate is subjected to friction damage, the sealing ring 34 is embedded into the annular groove 35, the sealing performance between the plugging head 32 and the oil outlet 30 is improved, the sealing performance after the plugging head 32 is plugged into the oil outlet 30 is improved, namely, when the plate is mutually extruded by the plugging head 32, the sealing performance is improved, the lubricating oil is prevented from overflowing, so that more lubricating oil is sprayed out from the oil outlet 30 which is not plugged by the plugging head 32, the spraying range of the lubricating oil and the surface area on the plate are improved, and more surface areas on the plate are protected.

A plurality of sliding holes 36 are formed in the inner bottom surface of the annular groove 35, fixing rods 37 are arranged in the sliding holes 36, the middle positions of the fixing rods 37 are hermetically connected to the inner side walls of the sliding holes 36 through rubber sheets 38, one ends of the fixing rods 37 are arc-shaped and are matched with the outer surface of the end portion of the sealing ring 34, and the other ends of the fixing rods 37 are embedded into fixing grooves 39 formed in the blocking side walls; the edge of sealing ring 34 imbeds in ring channel 35, and the dead lever 37 is resumeed in the extrusion of sealing ring 34 simultaneously, and dead lever 37 drags the piece of rubber 38 embedding in fixed slot 39 for form closed auto-lock between shutoff head 32, sealing ring 34 and the dead lever 37 three, and will shutoff head 32 to the centre extrusion, make shutoff head 32 arrange the intermediate position of oil outlet 30 in, improve the leakproofness between shutoff head 32 and the oil outlet 30.

A plurality of antennae 40 are arranged at the edge of the outer ring of the rubber ring 33, and the tips of the antennae 40 are propped against the outer surface of the push rod 22; in-process in the oil outlet 30 is embedded to the shutoff head 32, the attached extrusion of the outward flange of rubber circle 33 is at the surface of push rod 22, and rubber circle 33 drives feeler 40 to move simultaneously, and the tip of feeler 40 promotes the piece of push rod 22 surface adhesion, then takes away through the flow of lubricating oil, prevents that the piece adhesion from piling up on push rod 22 surface, causes wearing and tearing to panel internal surface.

Example two:

referring to fig. 6, in a first comparative example, as another embodiment of the present invention, the branch of the oil outlet pipe 27 extends to the first inclined plane 7, and the lubricating oil flows to the first inclined plane 7, so that an oil film is formed on the first inclined plane 7, thereby reducing the wear between the first inclined plane 7 and the second inclined plane 11, and prolonging the service life of the lower mold 2 and the upper mold 8.

The working principle is as follows: firstly, a plate is placed on a lower die 2, then an upper die 8 is pushed down by a control hydraulic cylinder, the upper die 8 is gradually close to the lower die 2, in the process of approaching, a first inclined plane 7 is firstly attached and extruded with a second inclined plane 11, so that the two lower dies 2 are mutually far away, finally, two sides of the upper die 8 are embedded into a groove 6, the plate is pressed down by the inner top surface of a first-level concave part 9, the plate is bent and attached to the inner wall of the groove 6, at the moment, the plate is punched and bent, then, the hydraulic cylinder is reset, the upper die 8 is far away from the lower dies 2, then the two lower dies 2 are mutually close under the elastic action of a first spring 4, at the moment, the lower dies 2 are in clearance fit with the blank, namely, the blank is in a free state, the blank is conveniently taken down, the labor force is reduced, the material taking efficiency is improved, and the production of the LED street lamp shell is accelerated; in the stamping process, the two lower dies 2 are relatively far away from and move, and the friction force between the plate and the two lower dies 2 is different, so that when the two lower dies 2 are relatively far away from, the position of the plate can deviate, and the stamping accuracy of the plate is influenced, therefore, the plate is fixed in advance by arranging the pre-pressing unit on the upper die 8; in the process that the upper die 8 is close to the lower die 2, the pre-pressing rod 12 adsorbs the sucker 14 on the plate, so that the plate is fixed, the upper die 8 continues to move downwards, the second spring 13 is pulled upwards at the upper end of the pre-pressing rod 12, meanwhile, the sucker 14 is arranged in the second-stage concave part 10, the inner edge of the first-stage concave part 9 is pressed downwards, and the plate is bent and deformed; the pre-pressing unit is used for realizing the pre-fixing of the plate, and preventing the plate from being positioned in a deviation manner due to the movement of the lower die 2, so that the plate is not accurately stamped; the upper end of the pre-pressing rod 12 gradually extends upwards, meanwhile, the upper end of the pre-pressing rod 12 pulls the drawing rod 15 through the connecting plate, negative pressure is gradually formed in the air extracting cylinder 16, air between the suction cup 14 and the plate is also sucked into the air extracting cylinder 16 again at the moment, the negative pressure between the suction cup 14 and the plate is increased, and therefore the adsorption stability between the suction cup 14 and the plate is further improved; the upper die 8 moves upwards, the pre-pressing rod 12 does not extrude the plate any more, the pre-pressing rod 12 resets under the elastic force of the second spring 13, meanwhile, the drawing rod 15 blows the gas of the air pumping cylinder 16 into the sucking disc 14, the sucking disc 14 is separated from the plate, and the plate is placed in a free state and taken down; after the plate is punched and formed, the plate is placed on the lower die 2, namely the plate is attached to the upper plate surface of the upper die 8, when the material is taken, an operator also needs to eject the blank from the groove 6, the blank is not convenient to take down, and therefore, the blank is pushed upwards by arranging the push rod 22, so that the blank is placed above the lower die 2, and the material is convenient to take; the upper die 8 moves upwards, the prepressing rod 12 is separated from the plate, the two lower dies 2 are close to each other, meanwhile, the lower ends of the V-shaped rods 19 are extruded relatively, the push rods 22 are gradually pushed upwards by the upper ends of the V-shaped rods 19, the plate is placed above the lower dies 2 by the push rods 22, and at the moment, a space is left between the plate and the lower dies 2, so that the plate can be conveniently inserted by hands or clamped and taken down by a clamp body, the operation is convenient, and the material taking efficiency is improved; in the process that the two lower dies 2 are relatively far away, the V-shaped rod 19 rotates the push rod 22 into the rotary groove 18 under the torsion force of the torsion spring 21, and at the moment, the push rod 22 is lower than the upper plate surface of the lower die 2, so that the plate is stably placed on the lower die 2; when the push rod 22 pushes up the plate, rolling friction occurs between the push rod 22 and the surface of the plate, the friction can cause abrasion to the inner surface of the plate, when the stamped LED street lamp shell is painted for decoration protection, only a spray head is arranged on the outer surface of the shell, and the inner surface is not sprayed, so that when the plate is stamped, the protection of the inner surface of the plate needs to be considered, and therefore, the plate is lubricated and protected by lubricating oil; when the two lower dies 2 approach, the piston rod 23 is extruded, the piston rod 23 pumps lubricating oil pumped in the piston cylinder 24 into the cavity 29 of the push rod 22 through the oil outlet pipeline 27 and the hose, the lubricating oil is sprayed out from the oil outlet hole 30, and the lubricating oil is sprayed on the lower dies 2, the outer ring of the push rod 22 and the plate, so that a layer of oil film is formed on the surface of the push rod 22, the plate is isolated from the push rod 22, and the inner surface of the plate is protected; before the sheet material is punched, the whole large sheet material is generally cut by a laser through shearing, or cut by an electric saw, and after the laser cutting, a plurality of small particles cooled by melting are remained on the surface of the sheet material, when the electric saw cuts, some cutting chips remain on the plate, the push rod 22 rotates on the inner surface of the plate, and the small particles and the debris can block the oil outlet hole 30 to influence the spraying of the lubricating oil, for this reason, by arranging the plugging head 32 in the oil outlet hole 30, the plugging head 32 is made of soft rubber materials, so that when hard metal or plastic is selected, the blocking head 32 is blocked in the oil outlet 30, the oil pressure of the lubricating oil pushes the blocking head 32 out of the oil outlet 30, the lubricating oil flows out, when lubricating oil pressure does not exist, the plug is reset through the pressure spring 31, the oil outlet hole 30 is plugged again, small particles and debris are blocked outside the oil outlet hole 30, and the possibility that the oil outlet hole 30 is plugged is reduced; the plugging is reset through a pressure spring 31, a plugging head 32 is embedded into the oil outlet 30, meanwhile, a rubber ring 33 pushes away small particles and scraps around the oil outlet 30, then the small particles and the scraps are brought into the rotary groove 18 under the flowing of lubricating oil, the small particles and the scraps are prevented from being adhered to the push rod 22, the inner surface of the plate is subjected to friction damage, a sealing ring 34 is embedded into an annular groove 35, the sealing property between the plugging head 32 and the oil outlet 30 is improved, the sealing property after the plugging head 32 is plugged into the oil outlet 30 is improved, namely, when the plate is mutually extruded by the plugging head 32, the sealing property is improved, the lubricating oil is prevented from overflowing, so that more lubricating oil is sprayed out from the oil outlet 30 which is not plugged by the plugging head 32, the spraying range of the lubricating oil and the surface area on the plate are improved, and more surface areas on the plate are protected; the edge of the sealing ring 34 is embedded into the annular groove 35, meanwhile, the sealing ring 34 extrudes and recovers the fixing rod 37, the fixing rod 37 pulls the rubber sheet 38 to be embedded into the fixing groove 39, so that the sealing head 32, the sealing ring 34 and the fixing rod 37 form closed self-locking, the sealing head 32 is extruded towards the middle, the sealing head 32 is placed at the middle position of the oil outlet 30, and the sealing performance between the sealing head 32 and the oil outlet 30 is improved; in-process in the oil outlet 30 is embedded to the shutoff head 32, the attached extrusion of the outward flange of rubber circle 33 is at the surface of push rod 22, and rubber circle 33 drives feeler 40 to move simultaneously, and the tip of feeler 40 promotes the piece of push rod 22 surface adhesion, then takes away through the flow of lubricating oil, prevents that the piece adhesion from piling up on push rod 22 surface, causes wearing and tearing to panel internal surface.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.