CN117960881A - Sheet metal stamping mechanism and four-column hydraulic press - Google Patents
Sheet metal stamping mechanism and four-column hydraulic press Download PDFInfo
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- CN117960881A CN117960881A CN202410392337.5A CN202410392337A CN117960881A CN 117960881 A CN117960881 A CN 117960881A CN 202410392337 A CN202410392337 A CN 202410392337A CN 117960881 A CN117960881 A CN 117960881A
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- 239000002184 metal Substances 0.000 title claims abstract description 88
- 230000007246 mechanism Effects 0.000 title claims abstract description 24
- 238000003825 pressing Methods 0.000 claims abstract description 75
- 238000001514 detection method Methods 0.000 claims description 63
- 230000005540 biological transmission Effects 0.000 claims description 16
- 230000001174 ascending effect Effects 0.000 claims description 8
- 210000001503 joint Anatomy 0.000 claims description 6
- 238000004080 punching Methods 0.000 abstract description 22
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 17
- 230000008569 process Effects 0.000 description 16
- 230000009471 action Effects 0.000 description 7
- 230000000630 rising effect Effects 0.000 description 5
- 238000013459 approach Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005489 elastic deformation Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
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Abstract
The invention relates to the technical field of sheet metal stamping, in particular to a sheet metal stamping mechanism and a four-column hydraulic press. According to the invention, the traditional upper die is fixed on the stamping plate, the stamping plate and the lower pressing plate are in indirect contact, and the filling part is used as a carrier between the lower pressing plate and the stamping plate, so that the problems of reduced service life of the die and even casualties caused by false start or air compression of the stamping machine are solved; the four-column hydraulic press comprises a lower die, a lower roller, a feeding part and an abutting part, and the feeding part is locked when the hydraulic press punches the metal plate through the punching plate, the abutting plate and the abutting part, so that the metal plate is prevented from being deviated during punching, and the feeding part drives the metal plate to automatically feed.
Description
Technical Field
The invention relates to the technical field of sheet metal stamping, in particular to a sheet metal stamping mechanism and a four-column hydraulic press.
Background
The metal plate is a comprehensive cold working process for metal plates, comprising shearing, cutting, compounding, folding, splicing and the like, and stamping is one of the metal plate working processes, wherein the stamping process is generally used for obtaining thicker metal plates of the metal plates by procedures such as cutting, cutting and the like, external force is applied to the plates, strips, pipes, sectional materials and the like by stamping equipment to enable the plates, the strips, the pipes, the sectional materials and the like to generate plastic deformation or separation, so that the metal plates with the required shape and size are obtained, the nominal force stroke of a 10-ton punch is generally about 8-10mm, the steel plates with the same thickness can be stamped, the stamped tonnage is relatively small (small holes) can be stamped into thicker steel plates, but when small holes are stamped on the metal plates with the higher hardness of 8-10mm, the metal plates are usually placed on a die holder firstly, then an upper die is driven to be pressed on the metal plates by a hydraulic push rod, the metal plates are pushed to a proper position to wait for next stamping, and at present, most of metal plates of a stamping device are automatically replaced by a machine to replace manual work, and the metal plates can be placed on a patent by a far place, and a patent number is just needed to be placed on a device for conveying the metal plate, for example: the buffer device for the automobile body punching machine has the advantages that the buffer device is used for the automobile body punching machine, the buffer pad is arranged, the plate is prevented from being in direct contact with the workbench, so that the buffer effect is achieved, the air cylinder pressure at the bottom of the fixing frame is regulated through the controller, the impact on the die and the machine tool during punching is greatly reduced, and the safety during operation is improved.
The problem of the automatic feeding of metal sheet in the stamping process has been solved among the prior art, the impact that mould and lathe received during the stamping has also been reduced simultaneously, the sheet metal in the stamping process of prior art can not be with workstation direct contact, but the carrier between sheet metal and the workstation still can be extruded downwards to the punching machine of workstation top when starting, and then produce certain wearing and tearing to the punching press head, and when not needing the punching press, if the punching machine is started by mistake, can produce the problem of mould air pressure, lead to the life reduction of mould, if personnel carry out the during work such as overhaul dismantlement on the workstation, the punching machine perhaps even starts by mistake and extrudees downwards and cause casualties.
Therefore, a sheet metal stamping mechanism and a four-column hydraulic press are provided.
Disclosure of Invention
The invention aims to provide a sheet metal stamping mechanism, which solves the problems that in the prior art, a stamping machine is easy to start by mistake or the service life of a die is reduced or casualties are caused due to air compression.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The utility model provides a sheet metal stamping mechanism, its cooperation hydraulic press uses, and the hydraulic press includes base, stand, roof, stamping device and hydraulic stem, and stamping mechanism includes holding down plate, stamping plate, go up mould, first spring, detection part, drive part and filling part, the lower extreme at the hydraulic stem is connected to the holding down plate, stamping plate sliding connection is on the stand, and goes up the mould and fix on the stamping plate, first spring winds to establish on the stand, and both ends fixed connection respectively on stand and stamping plate, be connected with detection part on the holding down plate, when not placing the metal sheet on the base the holding down plate can drive detection part and continuously move down, when placing the metal sheet on the base the holding down plate can drive detection part and the relative holding down plate of metal sheet contact back upward movement, filling part installs on the base, the holding down plate can't directly contact with the stamping plate, the filling part is located between holding down plate and the stamping plate, drive the drive part installs in the stamping plate, the drive part drives between drive part and the holding down plate and moves to the drive between the relative stamping plate when the drive part moves down plate and the detection part moves down from the stamping plate to the relative stamping plate.
Preferably, the detection part comprises a detection rod, an ascending rack, a second spring and a turning gear, wherein a pressing through hole is longitudinally formed in the pressing plate, a sliding groove is formed in the rear side of the pressing through hole, a detection sleeve is fixedly connected to the lower end of the pressing plate, the detection sleeve is in sliding connection with the pressing through hole, a first rack is arranged on the inner wall of the left side of the detection sleeve, the detection rod is in sliding connection with the detection sleeve, the ascending rack is in sliding connection with the detection rod, the second spring is fixed at the upper end of the ascending rack, the upper end of the second spring is fixedly connected with the detection sleeve, the first spring is more than the second spring in elasticity, the turning gear is rotationally connected to the inner wall of the front side of the detection rod, the first rack is arranged on the front side of the turning gear, the rear side of the turning gear is meshed with the ascending rack, and the front side of the turning gear is meshed with the first rack, and the first rack is fixed on the inner wall of the detection sleeve.
In the scheme, the second spring has larger elasticity, and the elasticity of the second spring is smaller than the elastic deformation force of the metal plate, so that after the detection rod contacts the metal plate, the metal plate has enough supporting force to squeeze the second spring, and then the detection rod can approach to the lower pressing plate.
Preferably, the filling part comprises a rotating sleeve, a pressing groove, a pressing block, a filling block, a third spring and a rotating pushing block, wherein a supporting rod is fixedly connected to the bottom plate, the supporting rod is arranged on the left side of the pressing plate, the rotating sleeve is rotationally connected to the supporting rod, the pressing groove is longitudinally formed in the side portion of the rotating sleeve, the pressing block is slidably connected to the pressing groove, the filling block is arranged on one side of the pressing block away from the supporting rod, the rotating pushing block is axially arranged on the side portion of the rotating sleeve, the third spring is arranged at the lower end of the pressing block, the lower end of the third spring is in butt joint with the inner wall of the lower side of the pressing groove, a torsion spring is arranged between the rotating sleeve and the supporting rod, and the filling block is matched with the upper end of the pressing plate.
In the scheme, the torsion spring can automatically drive the filling block to rotate to the center of the upper end of the upper die after the rotating sleeve rotates, so that the rotating sleeve can rotate on the supporting rod and can automatically reset when not being pushed.
Preferably, the transmission part comprises an abutting plate and a first cam groove, a first convex column is arranged on the rear side of the ascending rack and extends into the sliding groove, the abutting plate is arranged in the sliding groove, the left side of the abutting plate is matched with the rotating push block, the first cam groove is formed in the abutting plate, and the first cam groove is matched with the first convex column.
In the above scheme, the left side of the first cam groove is a vertical section, the right side of the first cam groove is an inclined section, the inclined section is inclined downwards from left to right, the left side of the inclined section is connected with the lower side of the vertical section, when the first convex column moves downwards relative to the first cam groove, the first convex column can move from the uppermost end of the vertical section to the rightmost end of the inclined section of the first cam groove, and then the abutting plate is driven to move leftwards relative to the first convex column, when the first convex column moves upwards relative to the first cam groove, the first convex column can move from the rightmost end of the inclined end of the first cam groove to the uppermost end of the vertical section, and then the abutting plate is driven to move rightwards relative to the first convex column.
Preferably, one side of the filling block far away from the supporting rod is bent towards the front side, the stamping plate is cuboid or ellipsoid, and the longer side of the stamping plate is opposite to the supporting rod.
In the scheme, the filling block is bent towards the front side away from one side of the supporting rod, so that the supporting rod is not contacted with the upright post when the transmission part moves towards one side close to the supporting rod, and the filling block is made of carbon steel when moving towards one side far away from the supporting rod, so that the filling block is guaranteed to have enough deformation resistance in the use process, one end of the filling block far away from the supporting rod is opposite to the center of the upper die, and meanwhile, the filling block has the capacity of not deforming in the stamping process.
Compared with the prior art, the invention has the beneficial effects that:
1. When the existing punching machine punches thicker metal plates, the hydraulic rod of the hydraulic machine stretches out to drive the upper die to directly punch the metal plates on the lower die, however, when the metal plates are replaced after the stamping of one metal plate is finished, the hydraulic machine is easy to empty the dies, so that the service life is reduced, even when the upper die and the lower die are replaced after the stamping of one group of metal plates is finished, the hydraulic machine is started by mistake, the dies are damaged or even casualties are caused, in order to solve the problems, the upper die is fixed on the punching plate, the punching plate and the lower plate are indirectly contacted, the upper die is fixed on the punching plate, a filling part is used as a carrier between the lower plate and the punching plate, so that the punching plate cannot drive the upper die to empty downwards when the metal plates are not arranged at the right lower end of the upper die, and the service life of the dies is reduced or the casualties are avoided.
2. The invention aims to ensure that when the hydraulic rod pushes the lower pressure plate to extend, the detection sleeve on the lower pressure plate drives the detection part to automatically detect whether a metal plate exists at the lower end or not, and the height difference between the detection part and the lower pressure plate is utilized to feed back the transmission part, so that when the metal plate exists, the transmission part can not push the filling part to rotate so as to enable the lower pressure plate to indirectly contact with the stamping plate, and when the metal plate does not exist, the transmission part pushes the filling part to rotate so as to enable the lower pressure plate to always not drive the stamping plate to press downwards, and the detection and protection effects are automatically completed by utilizing the stamping action so as to realize higher automation and reduce the waste of human resources.
The utility model provides a four post hydraulic presses, includes foretell sheet metal stamping mechanism and bed die, lower gyro wheel, feeding part and butt part, the bed die is just right with last mould, the bed die rotates to be connected on the base, its upper end and bed die upper end level, feeding part sets up the stamping plate right side, feeding part can drive the sheet metal piece on the lower gyro wheel when the holding down plate rises and remove left, thereby butt part can promote the butt board and reciprocate to promote or the locking to feeding part.
Preferably, the feeding component comprises a feeding stay bar, an upper roller, a second gear and a brake pad, wherein a second rack is arranged on the right side of the abutting plate, the feeding stay bar is fixed at the lower end of the top plate, the feeding stay bar is arranged on the right side of the stamping plate, the upper roller is rotationally connected with the front end of the feeding stay bar, the second gear is rotationally connected with the rear end of the feeding stay bar and is coaxially connected with the upper roller, the brake pad is arranged at the rear end of the second gear and is coaxially connected with the second gear, the diameter of the second gear is smaller than that of the brake pad, the right side of the second rack is meshed with the left side of the second gear, and the rear end of the second rack is matched with the front end of the brake pad.
In the scheme, the diameter of the second gear is smaller than that of the brake pad, so that the abutting plate can be attached to the side part of the brake pad when moving to a certain position of the brake pad, a gap is reserved between the second gear and the brake pad, and the abutting plate can be moved to the middle position of the second gear and the middle position of the brake pad without contacting the second gear and the middle position of the brake pad.
Preferably, the abutting part comprises a first limiting plate, a first ejection block, a second cam groove, a second limiting plate, a fourth spring, a transverse moving groove and a brake unit, wherein the first ejection block is slidably connected in the detection sleeve, the sliding direction of the first ejection block is in front-back direction, the left side of the first convex column is provided with a second convex column, the second cam groove is formed in the first ejection block, the second convex column is matched with the second cam groove, the second limiting plate is slidably connected in the sliding groove, the sliding direction of the second limiting plate is in front-back direction, the fourth spring is connected with the rear end of the second limiting plate, the rear end of the fourth spring is in butt joint with the inner wall of the stamping plate, the transverse moving groove is formed in the second limiting plate, the abutting plate is slidably connected in the transverse moving groove, the sliding direction of the abutting plate is in left-right direction, and the brake unit is arranged in the first ejection block and can stretch out to drive the abutting plate to lock the brake block when the first ejection block moves to the uppermost end.
In the above-mentioned aspect, the second cam groove is provided in a direction inclined downward from front to back, and the arrangement is such that the first ejector block moves rearward relative to the second cam groove when the second cam groove moves from the front end of the second cam groove to the rear end of the second cam groove, so that the abutment plate can be pushed by the first ejector block.
Preferably, the brake unit comprises an ejection groove, a second ejection block, a chamfer, a spring baffle and a fifth spring, wherein an ejector pin is arranged at the upper end of the inner wall of the detection sleeve, the ejection groove is formed in the first ejection block, the second ejection block is slidably connected in the ejection groove, the sliding direction of the second ejection block is in front-back direction, the chamfer is arranged at the front end of the second ejection block, the chamfer is matched with the ejector pin, the rear end of the second ejection block is matched with the abutting plate, the spring baffle is arranged at the side part of the second ejection block, the fourth spring is arranged at the rear side of the spring baffle, and the rear end of the fourth spring is in butt joint with the inner part of the first ejection block.
In the scheme, the setting direction of chamfer is by front end to rear end slant upward direction setting for when the relative holding down plate of second projection upwards moved, the second projection is earlier with the ejecting piece backward release, and when the second projection was close to holding down plate nearest distance, the ejector pin inserts in the ejecting groove and extrudees the chamfer, makes the chamfer drive the ejecting piece of second and stretches out backward, and then promotes the butt board backward again, makes the butt board drive the second rack and is close to the brake block again and finally laminate the locking with it.
Compared with the prior art, the invention has the beneficial effects that:
1. Through the punching plate, the butt plate and the butt part, when realizing that the hydraulic press punches a metal sheet, the butt part is released the butt plate, when avoiding feeding part to reverse, plays a locking effect to feeding part, prevents that the metal sheet from producing the skew when punching a mould.
2. According to the invention, the feeding part, the lower roller, the abutting plate and the second rack are arranged, so that the abutting plate drives the second rack to be matched with the feeding part in the process of returning the stamping plate after stamping is finished, and the feeding part drives the metal plate to automatically feed.
Drawings
FIG. 1 is a schematic view of a sheet metal stamping mechanism according to the present invention;
FIG. 2 is an enlarged schematic view of the detecting part of the present invention;
FIG. 3 is a schematic cross-sectional view of a press table according to the present invention;
FIG. 4 is a schematic view of an exploded construction of a filler member of the present invention;
FIG. 5 is a schematic view of the structure of the transmission component of the present invention;
FIG. 6 is a schematic diagram of the overall structure of a four-column hydraulic machine according to the present invention;
FIG. 7 is a schematic view of the feed member structure of the present invention;
fig. 8 is an enlarged schematic view of the abutting part and the brake unit of the present invention.
In the figure: a. a base; b. a column; c. a top plate; d. a punching device; e. a hydraulic rod; 1. a lower pressing plate; 2. a stamping plate; 3. an upper die; 4. a first spring; 5. a detection section; 6. a transmission member; 7. a filling member; 51. a detection rod; 52. lifting the rack; 53. a second spring; 54. a change gear; 21. pressing down the through hole; 22. a sliding groove; 11. detecting a sleeve; 12. a first rack; 71. rotating the sleeve; 72. pressing down the groove; 73. pressing the block; 74. filling blocks; 75. a third spring; 76. rotating the pushing block; 77. a support rod; 61. an abutting plate; 62. a first cam groove; 521. a first post; 621. a vertical section; 622. an inclined section; 8. a lower die; 9. a lower roller; 101. A feed member; 102. an abutment member; 1011. a feed stay bar; 1012. an upper roller; 1013. a second gear; 1014. a brake pad; 611. a second rack; 1021. a first limiting plate; 1022. a first ejection block; 1023. a second cam groove; 1024. a second limiting plate; 1025. a fourth spring; 1026. a transverse moving groove; 103. a brake unit; 1027. a second post; 1031. an ejection groove; 1032. a second ejection block; 1033. chamfering; 1034. a spring baffle; 1035. a fifth spring; 111. and (5) a jacking pin.
Detailed Description
In order that the technical solution in the embodiments of the present invention may be clearly and completely described, features and advantages may be more clearly understood, a detailed description of specific embodiments of the present invention will be made below with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1 to 3, the present invention provides a sheet metal stamping mechanism, which is used with a hydraulic press, wherein the hydraulic press includes a base a, a column b, a top plate c, a stamping device d and a hydraulic rod e, and the technical scheme of the stamping mechanism is as follows: including base a, stand b, roof c, stamping device d and hydraulic stem e, stamping mechanism includes holding down plate 1, stamping plate 2, go up mould 3, first spring 4, detecting part 5, drive member 6 and filling part 7, holding down plate 1 connects the lower extreme at hydraulic stem e, stamping plate 2 sliding connection is on stand b, and go up mould 3 and fix on stamping plate 2, first spring 4 winds and establish on stand b, and both ends fixed connection respectively on stand b and stamping plate 2, first spring 4 can support stamping plate 2, make it can only receive when stamping plate 1 gravity acts on, guarantee that hydraulic stem e stretches out to extremely keep the space between limit position clamp plate 1 and the stamping plate 2, be connected with detecting part 5 on the holding down plate 1, detecting part 5 can be driven to continuously move down by detecting part 1 under the not having placed the metal sheet on the base a, the base a can drive detecting part 5 and metal sheet contact back relative lower part 1 and upwards move, filling part 7 installs on base a, and when stamping plate 1 and stamping plate 2 are located down plate 1 and direct drive down plate 1 and stamping part 2 and moving between the drive part 1 and stamping plate 2, when driving part 1 and stamping part 2 move down plate 1 and filling part 1 move down through the drive member 1, the drive part 1 and the drive part 1 when stamping part 1 moves down plate 1 and the drive part 1 and the stamping part 2.
Referring to fig. 2 to 3, specifically, the detecting member 5 includes a detecting rod 51, a rising rack 52, a second spring 53 and a turning gear 54, a pressing plate 2 is longitudinally provided with a pressing through hole 21, a sliding groove 22 is provided at the rear side of the pressing through hole 21, the lower end of the pressing plate 1 is fixedly connected with a detecting sleeve 11, the detecting sleeve 11 is slidably connected with the pressing through hole 21, a first rack 12 is provided at the left inner wall of the detecting sleeve 11, the detecting rod 51 is slidably connected in the detecting sleeve 11, the rising rack 52 is slidably connected in the detecting rod 51, the second spring 53 is fixed at the upper end of the rising rack 52, the upper end of the second spring 53 is fixedly connected with the detecting sleeve 11, the second spring 53 has larger elasticity, the elasticity of the second spring 53 is smaller than the elastic deformation capability of the metal plate, after the detection rod 51 contacts the metal plate, the metal plate has enough supporting force to press the second spring 53, so that the detection rod 51 can be close to the downward pressing plate 1, the elasticity of the first spring 4 is far greater than that of the second spring 53, when the first spring 4 can support the punching plate 2 and the downward pressing plate 1 drives the first spring 4 to move downwards, the first spring 4 can support the punching plate 2 to fix, the punching plate 2 supports the internal abutting plate 61 so as to longitudinally not generate displacement, the turning gear 54 is rotationally connected to the inner wall of the front side of the detection rod 51, the first rack 12 is arranged on the front side of the turning gear 54, the rear side of the turning gear 54 is meshed with the rising rack 52, the front side of the turning gear 54 is meshed with the first rack 12, and the first rack 12 is fixed with the inner wall of the detection sleeve 11.
Working principle: when the lower end of the stamping plate 2 is not provided with a metal plate, when the stamping device d works to drive the hydraulic rod e to stretch out, the hydraulic rod e drives the lower pressing plate 1 to move downwards, the lower pressing plate 1 drives the detection sleeve 11 and the second spring 53 to move downwards to the limit position together, and the second spring 53 cannot generate elastic deformation in the moving process, so that the detection rod 51, the lifting rack 52 and the turning gear 54 at the lower end are driven to move downwards together.
When the lower end of the stamping plate 2 is provided with a metal plate, the hydraulic rod e drives the lower pressure plate 1 and the detection part 5 below the lower pressure plate to move downwards together, when the lower end of the detection rod 51 is abutted against the metal plate, the detection rod 51 is abutted against the metal plate and cannot move downwards, the detection rod 51 is static relative to the stamping rod, the hydraulic rod e continues to drive the lower pressure plate 1 and the detection sleeve 11 to move downwards to a limiting position, the detection sleeve 11 presses the second spring 53 in the moving process and simultaneously drives the first rack 12 to move downwards, the first rack 12 is matched with a first gear connected to the side part of the detection rod 51 in a rotating manner, so that the first gear is driven to rotate, the ascending rack 52 in the detection rod 51 is driven to move upwards to further press the second spring 53, and then the ascending rack 52 moves upwards relative to the stamping plate 2 to drive the transmission part 6 in the stamping plate 2, the function of automatically detecting whether the metal plate exists below in the operating process of the stamping device d is realized, certain manpower resources are saved, and the metal plate is also prevented from being horizontally offset to a certain extent in the detecting process.
Example 2
Referring to fig. 3 to 5, a sheet metal stamping mechanism is provided, which comprises a transmission component 6 and a filling component 7, wherein the filling component 7 comprises a rotating sleeve 71, a pressing groove 72, a pressing block 73, a filling block 74, a third spring 75 and a rotating push block 76, a supporting rod 77 is fixedly connected to a bottom plate, the supporting rod 77 is arranged on the left side of the stamping plate 2, the rotating sleeve 71 is rotationally connected to the supporting rod 77, the pressing groove 72 is longitudinally arranged on the side of the rotating sleeve 71, the pressing block 73 is slidably connected in the pressing groove 72, the filling block 74 is arranged on one side, far away from the supporting rod 77, of the pressing block 73, the rotating push block 76 is axially arranged on the side of the rotating sleeve 71, the third spring 75 is arranged at the lower end of the pressing block 73, and the lower end of the third spring 75 is in butt joint with the inner wall of the lower side of the pressing groove 72.
Referring to fig. 4, specifically, a torsion spring is disposed between the rotating sleeve 71 and the supporting rod 77, not shown in the drawing, and the torsion spring can make the rotating sleeve 71 rotate to automatically drive the filling block 74 to rotate to the center of the upper end of the upper die 3, one side of the filling block 74 away from the supporting rod 77 is bent towards the front side, the stamping plate 2 is a cuboid or an ellipsoid, and the longer side of the stamping plate is opposite to the supporting rod 77, so that the supporting rod 77 is not contacted with the upright post b when the transmission part 6 moves towards the side close to the supporting rod 77, and one end of the filling block 74 away from the supporting rod 77 is opposite to the center of the upper die 3 when moving towards the side far away from the supporting rod 77, the filling block 74 is matched with the upper end of the stamping plate 2, wherein the matching means that the filling block 74 is located at the upper end of the stamping plate 2 when the rotating sleeve 71 is not subject to a rotating thrust, and the stamping plate 2 can be extruded by the lower pressing plate 1 to push the filling block 74 downwards to move downwards to a certain extent.
Referring to fig. 3 to 5, specifically, the transmission member 6 includes an abutment plate 61 and a first cam groove 62, the left side of the first cam groove 62 is a vertical segment 621, the right side of the first cam groove 62 is an inclined segment 622, the inclined segment 622 is inclined downward from left to right, the left side of the inclined segment 622 is connected to the lower side of the vertical segment 621, a first boss 521 is disposed at the rear side of the rising rack 52, the first boss 521 extends into the sliding groove 22, the abutment plate 61 is disposed in the sliding groove 22, the left side of the abutment plate 61 is matched with the rotation push block 76, when the abutment plate 61 moves leftwards, the left side of the abutment plate 61 can contact with the rotation push block 76 and push the rotation push sleeve 71, so that the rotation push sleeve 71 drives the filling block 74 to move out between the pressing plate 2 and the lower pressing plate 1, the first cam groove 62 is opened on the abutment plate 61, the first cam groove 62 is matched with the first boss 521, when the first boss 521 moves downwards relative to the first boss 521, the first boss 521 can move leftwards relative to the uppermost segment 621 to the first boss 62, and the first boss 521 moves leftwards relative to the uppermost segment 62, and then the first boss 521 moves leftwards relative to the uppermost boss 521 moves leftwards relative to the first boss 62, and the uppermost boss 521 moves relative to the first boss 521.
The rest of the structure is the same as in embodiment 1.
When the lower end of the stamping plate 2 is not provided with a metal plate, when the hydraulic rod e stretches out to drive the lower pressure plate 1 and the detection part 5 at the lower end to move downwards, the first convex column 521 at the side part of the lifting rack 52 moves from the uppermost end of the vertical section 621 of the first cam groove 62 on the abutting plate 61 to the rightmost end of the inclined end, so that the abutting plate 61 is driven to move leftwards relative to the stamping plate 2, the abutting plate 61 moves leftwards to abut against the rotary push block 76 and push the rotary sleeve 71 to rotate, and finally the rotary sleeve 71 drives the filling block 74 to move to the left side of the stamping plate 2.
When the lower end of the stamping plate 2 is formed by a metal plate, the second spring 53, the detecting rod 51 and the lifting rack 52 are driven to move downwards in the extending process of the hydraulic rod e, so that the first convex column 521 moves downwards to the rightmost end of the inclined end relative to the first cam groove 62, the abutting plate 61 moves leftwards to push the rotating push rod, when the detecting rod 51 contacts the metal plate, the detecting sleeve 11 presses the second spring 53 and approaches to the lower end of the detecting rod 51, the detecting sleeve 11 drives the first rack 12 to move downwards relative to the first gear, the first gear rotates to drive the lifting rack 52 to move upwards, the lifting rack 52 drives the first convex column 521 to move upwards relative to the abutting plate 61 and finally moves to the leftmost end of the inclined end of the first cam groove 62, the abutting plate 61 is driven to be separated from contact with the rotating push block 76, the rotating sleeve 71 resets under the action of the torsion spring, the filling rod is driven to move between the stamping plate 2 and the lower pressing plate 1, then the hydraulic rod e continuously drives the lower pressing plate 1 to move downwards, the lower pressing plate 1 extrudes the filling rod so as to drive the filling rod and the lower pressing block 73 at the side part to extrude the third spring 75 downwards, the filling rod is attached to the stamping plate 2 downwards, then the filling rod continuously drives the stamping plate 2 to extrude the first spring 4 and simultaneously moves downwards, so that the upper die 3 on the stamping plate 2 stamps the metal plate, at the moment, the position of the first convex column 521 is moved from the leftmost end of the inclined section 622 of the first cam groove 62 to the uppermost end of the vertical section 621, normal stamping of the device when the metal plate exists is realized, contact between dies is avoided when the metal plate does not exist, the service life of the die is prolonged to a certain extent, and meanwhile, the safety of an operator in the working process is improved.
Example 3
Referring to fig. 5 to 8, a four-column hydraulic press is provided, which includes the sheet metal stamping mechanism according to any of the above embodiments, a lower die 8, a lower roller 9, a feeding member 101 and an abutment member 102, wherein the lower die 8 is opposite to the upper die 3, the lower roller 9 is rotatably connected to the base a, the upper end of the lower roller 9 is horizontal to the upper end of the lower die 8, the feeding member 101 is provided on the right side of the stamping plate 2, the feeding member 101 can drive the sheet metal member on the lower roller 9 to move leftwards when the lower pressing plate 1 is lifted, and the abutment member 102 can push the abutment plate 61 to move forwards and backwards so as to push or lock the feeding member 101.
Referring to fig. 6 to 7, specifically, the feeding member 101 includes a feeding stay 1011, an upper roller 1012, a second gear 1013, and a brake pad 1014, a second rack 611 is disposed on the right side of the abutting plate 61, the feeding stay 1011 is fixed on the lower end of the top plate c, the feeding stay 1011 is disposed on the right side of the pressing plate 2, the upper roller 1012 is rotatably connected to the front end of the feeding stay 1011, the second gear 1013 is rotatably connected to the rear end of the feeding stay 1011, which is coaxially connected to the upper roller 1012, the brake pad 1014 is disposed on the rear end of the second gear 1013, which is coaxially connected to the second gear 1013, the diameter of the second gear 1013 is smaller than the diameter of the brake pad 1014, a gap is left between the second gear 1013 and the brake pad 1014, the length of the gap is greater than the thickness of the abutting plate 61, the right side of the second rack 611 is meshed with the left side of the second gear 1013, and the rear end of the second rack 611 is matched with the front end of the brake pad 1014, where the second rack 611 can be adhered to the brake pad 1014 and prevented from rotating after the abutting plate 61 drives the second rack 611 to move a certain distance to the brake pad 1014.
Referring to fig. 7 to 8, the abutting member 102 includes a first stopper 1021, a first ejection block 1022, a second cam groove 1023, a second stopper 1024, a fourth spring 1025, a lateral movement groove 1026, and a brake unit 103, the first ejection block 1022 is slidably connected in the detection sleeve 11 in a sliding direction toward the front and rear, a second cam post 1027 is provided on the left side of the first cam post 521, the second cam groove 1023 is provided on the first ejection block 1022, the second cam groove 1023 is provided in a direction obliquely downward from the front to the rear, the second cam post 1027 is engaged with the second cam groove 1023, where the engagement means that when the second cam post 1027 moves upward relative to the lower platen 1, the second cam post 1027 moves to the foremost end of the second cam groove 1023 and can provide a rearward thrust to the second cam groove 1023, the first ejection block 1022 slides successively, when the second protruding column 1027 moves downward relative to the lower platen 1, the second protruding column 1027 moves to the rearmost end of the second cam groove 1023 and drives the first ejection block 1022 to move forward, the second limiting plate 1024 is slidably connected in the sliding groove 22, the sliding direction of the second protruding column is forward and backward, the fourth spring 1025 is connected with the rear end of the second limiting plate 1024, the rear end of the fourth spring 1025 abuts against the inner wall of the stamping plate 2, the lateral sliding groove 1026 is formed on the second limiting plate 1024, the abutting plate 61 is slidably connected in the lateral sliding groove 1026, the sliding direction of the abutting plate is left and right, the brake unit 103 is arranged in the first ejection block 1022, and the brake unit can extend to drive the abutting plate 61 to lock the brake block 1014 when the first ejection block 1022 moves to the uppermost end.
Referring to fig. 7 to 8, specifically, the brake unit 103 includes an ejector slot 1031, a second ejector block 1032, a chamfer 1033, a spring baffle 1034 and a fifth spring 1035, the ejector pin 111 is disposed at the upper end of the inner wall of the detection sleeve 11, the ejector slot 1031 is opened on the first ejector block 1022, the second ejector block 1032 is slidably connected in the ejector slot 1031, the sliding direction is in a front-back direction, the chamfer 1033 is disposed at the front end of the second ejector block 1032, the chamfer 1033 is disposed in a direction from the front end to the rear end in an obliquely upward direction, the chamfer 1033 is matched with the ejector pin 111, when the second ejector block 1027 moves upward relative to the lower platen 1, the second ejector block 1027 pushes the second ejector block 1032 rearward, when the second ejector block 1027 approaches the lower platen 1, the ejector pin 111 is inserted into the ejector slot 1031 and presses the chamfer 1033, so that the second ejector block 1032 extends rearward, the rear end of the second ejector block 1032 cooperates with the abutment 61, when the second ejector block 1032 pushes the second ejector block 1032 toward the rear end, the second ejector block 1032 pushes the second ejector block 1032 toward the rear side of the fourth spring baffle 1025, and the spring baffle 1022 can be disposed at the rear end of the side of the fourth ejector block 1025.
The rest of the structure is the same as in embodiment 2.
Working principle: when the lower end of the stamping plate 2 is provided with a metal plate, in the process that the hydraulic rod e stretches out and presses, after the detection rod 51 contacts with the metal plate, the first rack 12 drives the first gear to rotate, the first gear drives the rack and the first boss 521 at the side part of the rack to ascend, the first boss 521 drives the abutting plate 61 to move rightwards, and simultaneously, the second boss 1027 at the side part of the first boss 521 is matched with the second cam groove 1023 to drive the first ejection block 1022 to abut against the abutting plate 61, so that the abutting plate 61 is pushed out backwards, the abutting plate 61 compresses the fifth spring 1035 in the backward moving process and is limited by the second limiting plate 1024 to prevent inclination, then the hydraulic rod e continues to stretch out to drive the stamping plate 2 to move downwards, so that the second rack 611 on the abutting plate 61 is not in reverse rotation with the second gear to prevent the upper roller 1012 from driving the metal plate to move rightwards, when the stamping plate 2 continues to drive the upper die 3 to contact with the metal plate, the second boss 1027 moves upwards relative to the lower pressing plate 1 to enable the ejection block 111 to push the ejection block 1034 to push the ejection block 61 backwards, and then the brake block 1014 is pushed out of the second spring 1034 to drive the second roller 1032 to push the second spring 1032 to move upwards, and thus the second roller plate 1034 is pushed upwards, and the second baffle plate is further pushed towards the second flange plate 1034 moves towards the upper plate is pushed towards the upper plate 1034 to move.
After the metal plate is stamped, the hydraulic rod e contracts, the stamping plate 2 returns under the action of the first spring 4, the first protruding column 521 moves downwards relative to the lower pressing plate 1 under the action of the first spring 4, the ejector pin 111 is firstly separated from the engagement with the chamfer 1033, the second ejector block 1032 moves forwards under the action of the fourth spring 1025, the ejector plate 61 also moves forwards under the action of the fifth spring 1035 on the second limiting block, the second rack 611 is separated from the engagement with the brake pad 1014, then the first protruding column 521 moves downwards relative to the lower pressing plate 1, the second protruding column 1027 is driven to move to the rear end of the second cam groove 1023, the ejector plate 61 moves forwards under the action of the fifth spring 1035, the ejector plate 61 drives the second rack 611 to move to the engagement position under the second gear, the second rack 611 on the side of the ejector plate 61 is driven to move upwards when the stamping plate 2 rises, the upper roller 1012 on the second gear and the side of the second gear is driven, automatic loading device is realized, the waste of the metal plate is prevented from being automatically increased, and the metal plate is prevented from being automatically bent at the same time.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a sheet metal stamping mechanism, its cooperation hydraulic press uses, the hydraulic press includes base (a), stand (b), roof (c), stamping device (d) and hydraulic stem (e), its characterized in that: the stamping mechanism comprises a lower pressing plate (1), a stamping plate (2), an upper die (3), a first spring (4), a detection part (5), a transmission part (6) and a filling part (7), wherein the lower pressing plate (1) is connected to the lower end of a hydraulic rod (e), the stamping plate (2) is connected to a stand column (b) in a sliding manner, the upper die (3) is fixed on the stamping plate (2), the first spring (4) is wound on the stand column (b), the two ends of the first spring are respectively and fixedly connected to the stand column (b) and the stamping plate (2), the lower pressing plate (1) is connected with the detection part (5), the lower pressing plate (1) can drive the detection part (5) to continuously move downwards when the metal plate is not placed on a base (a), the lower pressing plate (1) can drive the detection part (5) to contact with the metal plate and then move upwards relative to the lower pressing plate (1), the filling part (7) is arranged on the base (a), the lower pressing plate (1) cannot directly contact with the lower pressing plate (2) and the lower pressing plate (7) to be directly contacted with the lower pressing plate (1) through the stamping part (2), the transmission part (6) is arranged in the stamping plate (2), the transmission part (6) drives the filling part (7) to move out from between the stamping plate (2) and the lower pressing plate (1) when the lower pressing plate (1) drives the detection part (5) to move downwards, and the transmission part (6) drives the filling part (7) to move between the stamping plate (2) and the lower pressing plate (1) when the detection part (5) moves upwards relative to the lower pressing plate (1).
2. The sheet metal stamping mechanism of claim 1, wherein: the detection part (5) comprises a detection rod (51), a lifting rack (52), a second spring (53) and a turning gear (54), wherein a downward through hole (21) is longitudinally formed in the stamping plate (2), a sliding groove (22) is formed in the rear side of the downward through hole (21), the lower end of the downward pressing plate (1) is fixedly connected with a detection sleeve (11), the detection sleeve (11) is slidably connected with the downward through hole (21), a first rack (12) is arranged on the inner wall on the left side of the detection sleeve (11), the detection rod (51) is slidably connected in the detection sleeve (11), the lifting rack (52) is slidably connected in the detection rod (51), the second spring (53) is fixed at the upper end of the lifting rack (52), the upper end of the second spring (53) is fixedly connected with the detection sleeve (11), the first spring (4) is elastically larger than the second spring (53), the turning gear (54) is rotatably connected with the inner wall on the front side of the detection rod (51), the first rack (12) is slidably connected with the turning gear (54) on the front side of the first rack (54) and meshed with the turning gear (54) on the front side of the first rack (54), the first rack (12) is fixed with the inner wall of the detection sleeve (11).
3. The sheet metal stamping mechanism of claim 2, wherein: the filling part (7) comprises a rotating sleeve (71), a pressing groove (72), a pressing block (73), a filling block (74), a third spring (75) and a rotating pushing block (76), wherein a supporting rod (77) is fixedly connected to a bottom plate, the supporting rod (77) is arranged on the left side of a stamping plate (2), the rotating sleeve (71) is rotationally connected to the supporting rod (77), the pressing groove (72) is longitudinally formed in the side portion of the rotating sleeve (71), the pressing block (73) is slidingly connected to the inside of the pressing groove (72), the filling block (74) is arranged on the side portion, far away from the supporting rod (77), of the pressing block (73), the rotating pushing block (76) is axially arranged on the side portion of the rotating sleeve (71), the third spring (75) is arranged at the lower end of the pressing block (73), the lower end of the third spring (75) is in butt joint with the inner wall of the lower side of the pressing groove (72), a torsion spring is arranged between the rotating sleeve (71) and the supporting rod (77), and the filling block (74) is matched with the upper end of the stamping plate (2).
4. A sheet metal stamping mechanism as claimed in claim 2 or claim 3, wherein: the transmission part (6) comprises an abutting plate (61) and a first cam groove (62), a first convex column (521) is arranged on the rear side of the ascending rack (52), the first convex column (521) extends into the sliding groove (22), the abutting plate (61) is arranged in the sliding groove (22), the left side of the abutting plate (61) is matched with the rotating pushing block (76), the first cam groove (62) is formed in the abutting plate (61), and the first cam groove (62) is matched with the first convex column (521).
5. The sheet metal stamping mechanism of claim 4, wherein: the left side of the first cam groove (62) is a vertical section (621), the right side of the first cam groove (62) is an inclined section (622), the inclined section (622) is inclined downwards from left to right, and the left side of the inclined section (622) is connected with the lower side of the vertical section (621).
6. The sheet metal stamping mechanism of claim 5, wherein: the filling block (74) is bent towards the front side at one side far away from the supporting rod (77), and the stamping plate (2) is a cuboid or an ellipsoid, and the longer side of the stamping plate is opposite to the supporting rod (77).
7. A four column hydraulic machine, characterized by: the sheet metal stamping mechanism comprises the sheet metal stamping mechanism of any one of claims 1-6, and comprises a lower die (8), a lower roller (9), a feeding component (101) and a butt component (102), wherein the lower die (8) is opposite to the upper die (3), the lower roller (9) is rotationally connected to a base (a), the upper end of the lower roller is horizontal to the upper end of the lower die (8), the feeding component (101) is provided with a stamping plate (2) on the right side, the feeding component (101) can drive the sheet metal piece on the lower roller (9) to move leftwards when the lower pressing plate (1) ascends, and the butt component (102) can push the butt component (61) to move forwards and backwards so as to push or lock the feeding component (101).
8. The four-column hydraulic machine of claim 7, wherein: the feeding component (101) comprises a feeding stay bar (1011), an upper roller (1012), a second gear (1013) and a brake block (1014), wherein a second rack (611) is arranged on the right side of the abutting plate (61), the feeding stay bar (1011) is fixed at the lower end of a top plate (c), the feeding stay bar (1011) is arranged on the right side of a stamping plate (2), the upper roller (1012) is rotationally connected at the front end of the feeding stay bar (1011), the second gear (1013) is rotationally connected at the rear end of the feeding stay bar (1011) and is coaxially connected with the upper roller (1012), the brake block (1014) is arranged at the rear end of the second gear (1013) and is coaxially connected with the second gear (1013), the diameter of the second gear (1013) is smaller than that of the brake block (1014), the right side of the second rack (611) is meshed with the left side of the second gear (1013), and the rear end of the second rack (611) is matched with the front end of the brake block (1014).
9. The four-column hydraulic machine of claim 7, wherein: the abutting part (102) comprises a first limiting plate (1021), a first ejection block (1022), a second cam groove (1023), a second limiting plate (1024), a fourth spring (1025), a transverse moving groove (1026), a second convex column (1027) and a brake unit (103), wherein the first limiting plate (1021) is connected in a detection sleeve (11) in a sliding way, the sliding direction is towards up and down, the first ejection block (1022) is connected in the first limiting plate (1021) in a sliding way, the sliding direction is towards the front and back, the second convex column (1027) is arranged on the left side of the first convex column (521), the second cam groove (1023) is arranged on the first ejection block (1022), the second convex column (1027) is matched with the second cam groove (1023), the second limiting plate (1024) is connected in a sliding groove (22) in a sliding way, the sliding direction is towards the front and back, the fourth spring (1025) is connected with the rear end of the second limiting plate (1024) in a sliding way, the rear end of the second limiting plate (1024) is connected with the inner wall of the second cam groove (1023) in a sliding way, the second ejection block (1026) is arranged in the sliding way (1026) and the sliding way (1023) is arranged on the right side of the first limiting plate (1026) in the sliding way, which can extend out to drive the abutting plate (61) to lock the brake pad (1014) when the first ejection block (1022) moves to the uppermost end.
10. The four-column hydraulic machine of claim 9, wherein: the brake unit (103) comprises an ejection groove (1031), a second ejection block (1032), a chamfer (1033), a spring baffle (1034) and a fifth spring (1035), wherein the ejector pin (111) is arranged at the upper end of the inner wall of the detection sleeve (11), the ejection groove (1031) is formed in the first ejection block (1022), the second ejection block (1032) is slidably connected in the ejection groove (1031), the sliding direction of the second ejection block is in front-back direction, the chamfer (1033) is formed in the front end of the second ejection block (1032), the chamfer (1033) is matched with the ejector pin (111), the rear end of the second ejection block (1032) is matched with the abutting plate (61), the spring baffle (1034) is arranged at the side part of the second ejection block (1032), and the fourth spring (1025) is arranged at the rear side of the spring baffle (1034) and is in butt joint with the rear end of the first ejection block (1022).
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| CN117960881B (en) | 2024-05-28 |
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