CN112355125A

CN112355125A - Workpiece stamping device

Info

Publication number: CN112355125A
Application number: CN202011255258.8A
Authority: CN
Inventors: 赵聚营
Original assignee: Chongqing City Tongliang District Jingyi Computer Accessories Co ltd
Current assignee: Chongqing City Tongliang District Jingyi Computer Accessories Co ltd
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2021-02-12
Anticipated expiration: 2040-11-11
Also published as: CN112355125B

Abstract

The invention discloses a workpiece stamping device, which comprises a workbench, wherein an elastic lower die assembly is arranged on the workbench, an upper die assembly matched with the elastic lower die assembly is connected above the workbench through a telescopic device, an intermittent feeding assembly is arranged at the discharging tail end of the workbench, a traction structure is connected between the intermittent feeding assembly and the telescopic device, and the intermittent feeding assembly intermittently feeds a plate on the workbench through the traction structure due to the reciprocating motion of the telescopic device; the worktable is provided with material guide holes positioned on the elastic lower die assembly and the intermittent feeding assembly, one side below the material guide holes is provided with a feeding belt, and a turnover mechanism which turns a workpiece led out from the material guide holes by 180 degrees and then places the workpiece on the feeding belt is arranged below the material guide holes; the upper die assembly and the elastic lower die assembly are used for processing a U-shaped part after cutting the plate, and the intermittent feeding assembly is used for moving the plate to move the U-shaped part into the material guide hole; compared with the prior art, the invention improves the processing efficiency and the transferring efficiency of the workpiece.

Description

Workpiece stamping device

Technical Field

The invention relates to the technical field of stamping, in particular to a workpiece stamping device.

Background

The stamping is a forming method in which a press and a die are used to apply external force to a plate, a strip, a pipe, a profile, etc. to cause plastic deformation or separation, thereby obtaining a workpiece (stamped part) of a desired shape and size.

The processing method of the computer accessory comprises the steps of processing a U-shaped part in the processing process of the computer accessory, cutting a bought whole plate into a plurality of small blocks, processing the small blocks into the U-shaped part through a die, taking out the U-shaped part, turning the U-shaped part for 180 degrees, placing the U-shaped part in a transfer trolley, and transferring the U-shaped part to the next procedure for processing after a certain amount of U-shaped part is collected in the transfer trolley, wherein the processing efficiency of the process is low.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a workpiece stamping device to solve the problem of low efficiency in the process of processing and transferring a U-shaped part in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme: a workpiece stamping device comprises a workbench, wherein an elastic lower die assembly is arranged on the workbench, an upper die assembly matched with the elastic lower die assembly is connected above the workbench through a telescopic device, an intermittent feeding assembly is arranged at the discharging end of the workbench, a traction structure is connected between the intermittent feeding assembly and the telescopic device, and the intermittent feeding assembly intermittently feeds a plate on the workbench through the traction structure due to the reciprocating motion of the telescopic device;

the worktable is provided with material guide holes positioned on the elastic lower die assembly and the intermittent feeding assembly, a feeding belt is arranged on one side below the material guide holes, and a turnover mechanism which turns a workpiece led out of the material guide holes by 180 degrees and then places the workpiece on the feeding belt is arranged below the material guide holes;

the upper die assembly and the elastic lower die assembly process a U-shaped part after cutting the plate, and the intermittent feeding assembly moves the plate to move the U-shaped part into the material guide hole.

The working principle is as follows: the method comprises the following steps that a purchased whole plate is placed on a workbench, a telescopic device provides power to enable an upper die assembly to move towards an elastic lower die assembly, small blocks are formed on the plate through the upper die assembly and the elastic lower die assembly in a cutting mode and then pressed to form a U-shaped part, and the U-shaped part is placed in a small hole left after the small blocks are cut on the plate after being processed; the telescopic device drives the upper die assembly to move reversely, the upper die assembly enables the intermittent feeding assembly to move through the traction structure in the moving process, and the plate moves on the workbench along the feeding direction to enable the next processing position on the plate to move to the elastic lower die assembly; meanwhile, the U-shaped part is moved into the material guide hole in the moving process of the plate; the U-shaped piece penetrates through the material guide hole and is arranged on the turnover mechanism, and the U-shaped piece is turned over for 180 degrees by the turnover mechanism and then is arranged on the material conveying belt to be conveyed to the next procedure; the above work is then repeated to continuously process and transport the "U" shaped elements.

Compared with the prior art, the invention has the following beneficial effects:

1. the workpiece stamping device is characterized in that the expansion piece, the elastic lower die component, the upper die component, the intermittent feeding component, the traction structure, the turnover mechanism and the feeding belt are installed and matched to continuously process small pieces on a plate into U-shaped pieces after being cut, and then convey the U-shaped pieces to the next process after being turned over for 180 degrees, so that the processing efficiency and the transferring efficiency of the U-shaped pieces are greatly improved;

2. the power that intermittent type feeding subassembly carries out the feeding to panel is that the expansion bend drives the realization through pulling the structure in the motion process, rationally carries out linkage connection to the structure in this device to make manufacturing procedure go on in succession, and reduce the consumption of kinetic energy.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

fig. 3 is a partially enlarged view of a portion B in fig. 1.

Detailed Description

The present invention will be described in further detail below by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a workbench 1, a telescopic device 2, a material guide hole 3, a feeding belt 4, a lower die cavity 5, an ejection spring 6, a top plate 7, a cutting perforation 8, a male die 9, a cutting knife 10, a slag collecting box 11, a mounting hole 12, a ratchet 13, a feeding top plate 14, a traction rod 15, a support rail 16, a rack 17, a pawl 18, a return spring 19, a traction line 20, a pulley 21, a support table 22, a screw rod 23, a turnover plate 24, a moving sleeve 25, a driving rod 26 and a limiting rod 27.

As shown in fig. 1, an embodiment of the invention provides a workpiece stamping device, which comprises a workbench 1, wherein an elastic lower die assembly is arranged on the workbench 1, an upper die assembly matched with the elastic lower die assembly is connected above the workbench 1 through a telescopic device 2, an intermittent feeding assembly is arranged at the discharging tail end of the workbench 1, a traction structure is connected between the intermittent feeding assembly and the telescopic device 2, and the intermittent feeding assembly intermittently feeds a plate on the workbench 1 through the reciprocating motion of the telescopic device 2; a material guide hole 3 positioned on the elastic lower die assembly and the intermittent feeding assembly is formed in the workbench 1, a feeding belt 4 is arranged on one side below the material guide hole 3, and a turnover mechanism which is used for turning a workpiece led out of the material guide hole 3 for 180 degrees and then placing the workpiece on the feeding belt 4 is arranged below the material guide hole 3;

the upper die assembly and the elastic lower die assembly process a U-shaped part after cutting the plate, and the intermittent feeding assembly moves the plate to move the U-shaped part into the material guide hole 3.

The method comprises the following steps that a bought whole plate is placed on a workbench 1, a telescopic device 2 provides power to enable an upper die assembly to move towards an elastic lower die assembly, small blocks are formed on the plate through the upper die assembly and the elastic lower die assembly in a cutting mode and then pressed to form a U-shaped part, and the U-shaped part is placed in a small hole left after the small blocks are cut on the plate after being processed; the telescopic device 2 drives the upper die assembly to move reversely, the upper die assembly enables the intermittent feeding assembly to move through a traction structure in the moving process, and the plate moves on the workbench 1 along the feeding direction to enable the next processing position on the plate to move to the elastic lower die assembly; meanwhile, the U-shaped part is moved into the material guide hole 3 in the process of moving the plate; the U-shaped piece penetrates through the material guide hole 3 and is arranged on the turnover mechanism, and the U-shaped piece is turned over by 180 degrees through the turnover mechanism and then is arranged on the feeding belt 4 to be conveyed to the next procedure; the above work is then repeated to continuously process and transport the "U" shaped elements.

According to the workpiece stamping device, the expansion piece 2, the elastic lower die assembly, the upper die assembly, the intermittent feeding assembly, the traction structure, the turnover mechanism and the feeding belt 4 are installed and matched, so that small pieces are continuously cut on a plate to be processed into a U-shaped piece, and then the U-shaped piece is turned over for 180 degrees and conveyed to the next procedure, and the processing efficiency and the transferring efficiency of the U-shaped piece are greatly improved; the power that intermittent type feeding subassembly carries out the feeding to panel is that expansion bend 2 comes the transmission to realize through pulling the structure in the motion process, rationally carries out linkage connection to the structure in this device to make manufacturing procedure go on in succession, and reduce the consumption of kinetic energy.

As shown in fig. 1, according to another embodiment of the present invention, the workpiece stamping device further comprises an optimized structure of an elastic lower die assembly and an upper die assembly, the elastic lower die assembly comprises a lower die cavity 5 formed on the workbench 1, a top plate 7 slidably disposed in the lower die cavity 5 is connected to the lower die cavity 5 through a plurality of ejection springs 6, the workbench 1 is provided with two cutting through holes 8, and the two cutting through holes 8 are located on the feeding path of the workbench 1 and on different sides of the lower die cavity 5.

The adopted upper die assembly comprises a male die 9 matched with the lower die cavity 5, the male die 9 is connected with a telescopic rod of the expansion piece 2 through a connector, the two sides of the male die 9 are provided with material cutting knives 10 fixedly connected with the connector, and the cutting ends of the material cutting knives 10 are located below the bottom of the male die 9.

The expansion piece 2 can be an air cylinder, a piston rod of the air cylinder extends to enable the male die 9 to move downwards, the two material cutting knives 10 are firstly contacted with the plate on the workbench 1, a small block is cut on the plate, and a small hole is formed in the plate through the small block; pressing the middle part of the small block into the lower die cavity 5 after the male die 9 is contacted with the small block, enabling the top plate 7 to move downwards in the lower die cavity 5, and enabling the small block to form a U-shaped piece in the lower die cavity 5 through the matching of the lower die cavity 5 and the male die 9; the expansion piece 2 drives the male die 9 to move upwards, and in the process, the U-shaped piece is gradually moved out of the lower die groove 5 under the action of the elastic reset force of the ejection spring 6 until the top plate 7 is level with the working surface of the workbench 1, and the U-shaped piece is completely moved out of the lower die groove 5; at the moment, the intermittent feeding assembly is in contact with the plate on the workbench 1, so that the plate moves towards the tail end of the discharge of the workbench 1, the plate is sleeved outside the U-shaped part through the small hole in the moving process, the U-shaped part moves along with the plate, the U-shaped part moves to the material guide hole 3 and then falls into the material guide hole 3, and the plate moves to the next processing station; the U-shaped piece falls on the turnover mechanism, is turned over for 180 degrees and then is placed on the feeding belt 4, and then is conveyed to the next procedure.

In the process that the male die 9 enters the lower die cavity 5, the two material cutting knives 10 are correspondingly embedded into the two cutting through holes 8 one by one, so that the material cutting knives 10 are prevented from being limited; and also facilitates the guiding and draining of the cutting scraps into the cutting through holes 8.

In order to facilitate the collection and the rapid removal of the waste scraps generated by cutting, the lower end of each cutting perforation 8 is in a trumpet shape so as to facilitate the removal of the waste scraps from the cutting perforations 8, and a slag collection box 11 which is positioned below the two cutting perforations 8 and is communicated with the two cutting perforations is fixedly connected to the workbench 1; the generated scraps are collected by the slag collection box 11.

With reference to fig. 1 and 2, according to another embodiment of the present invention, the workpiece stamping device further includes a mounting hole 12 formed at the discharging end of the working table 1, the intermittent feeding assembly includes a ratchet 13 rotatably disposed in the mounting hole 12 and a feeding top plate 14 movably disposed in the mounting hole 12, a draw bar 15 rotatably connected to an eccentric position of the ratchet 13 is connected to the bottom of the feeding top plate 14, the feeding top plate 14 is slidably engaged with an inner wall of the mounting hole 12, and a drawing structure is connected to the ratchet 13 to enable the ratchet 13 to rotate unidirectionally toward the discharging end of the working table 1.

When the telescopic device 2 drives the upper die assembly to reciprocate up and down, the ratchet wheel 13 is driven to rotate in a single direction through the traction structure, so that the feeding top plate 14 reciprocates up and down in the mounting hole 12 to perform arc motion, and the feeding top plate 14 can be positioned and guided by connecting a clamping block on the feeding top plate 14 to be matched with an oval clamping groove formed in the inner wall of the mounting hole 12; the arrangement direction of the oval clamping grooves is the same as the moving direction of the feeding top plate 14 in the mounting hole 12, and the direction of the unidirectional rotation of the ratchet wheel 13 in this embodiment is the clockwise rotation direction in fig. 2, so that the feeding top plate 14 intermittently moves the plate on the workbench 1 towards the discharging end direction of the workbench 1 during the movement process, and the plate is continuously cut into small blocks and then pressed into a "U" -shaped piece.

With reference to fig. 1 and 2, according to another embodiment of the present invention, the workpiece stamping device further includes a support rail 16 disposed below the mounting hole 12 and connected to the workbench 1, a rack 17 is slidably engaged with the support rail 16, the rack 17 is connected to the ratchet 13 through a pawl 18, a middle portion of the pawl 18 is hinged to the workbench 1, one end of the pawl 18 is engaged with the ratchet 13, the other end of the pawl 18 is slidably abutted against a gear tooth on the gear, a return spring 19 is connected between one end of the rack 17 and an inner wall of the support rail 16, and a pull wire 20 is connected between the other end of the rack 17 and the retractor 2.

When the upper die assembly is driven by the telescopic device 2 to move downwards, the rack 17 moves towards the direction close to the telescopic device 2 through the traction wire 20, the return spring 19 is stretched, the rack 17 drives the pawl 18 to swing back and forth, and the ratchet 13 does not rotate in the process due to the matching relationship of the pawl 18 and the ratchet 13; after the U-shaped part is machined, in the process that the telescopic device 2 drives the upper die assembly to move upwards, under the elastic reset action of the reset spring 19, the rack 17 moves in the reverse direction, the rack 17 drives the pawl 18 to swing back and forth again, at the moment, the swing direction of the pawl 18 changes, the ratchet wheel 13 rotates through the matching of the pawl 18 and the ratchet wheel 13, so that the draw bar 15 drives the feeding top plate 14 to move towards the upper part of the discharging tail end of the workbench 1, the plate on the workbench 1 moves for a certain distance towards the direction of the discharging tail end of the workbench 1, the rear plate moves to the next machining position, the machined U-shaped part moves into the material guide hole 3, at the moment, the ratchet wheel 13 just rotates for a half circle, and the connection point of the draw bar 15 and the ratchet wheel 13 moves from the lowest point to the highest point on; the rear expansion piece 2 continues to drive the upper die assembly to move upwards, the ratchet 13 enables the feeding top plate 14 to move downwards through the traction rod 15, and the expansion piece 2 just stops running after the feeding top plate 14 returns to the original position; the machining of the next "U" profile can be continued.

In order to conveniently and reasonably arrange the traction wire 20, a pulley 21 is rotatably arranged at the top of the workbench 1, and a wire guide hole is formed in the side wall of the workbench 1; one end of the wire guide hole is positioned above the working surface of the working platform 1, and the other end of the wire guide hole is positioned below the working surface of the working platform 1; the middle part of the traction wire 20 is wound on the guide wheel and then passes through the wire guide hole.

With reference to fig. 1 and 3, according to another embodiment of the present invention, the workpiece stamping device further includes a support table 22 fixedly connected to the working table 1 and located below the material guiding hole 3, wherein the support table 22 is located at one side of the feeding belt 4; tilting mechanism includes that the level rotates the lead screw 23 that sets up on a supporting bench 22 and is located the returning face plate 24 of guide hole 3 below and be located lead screw 23 top, threaded sleeve is equipped with and removes cover 25 on the lead screw 23, it is connected with actuating lever 26 to rotate on the cover 25 to remove, actuating lever 26 rotates continuously with the one end that returning face plate 24 is close to pay-off belt 4, the equal rotation in middle part of 24 both sides of returning face plate is connected with the gag lever post 27 that links to each other with a supporting bench 22, lead screw 23 is located between two gag lever posts 27, and gag lever post 27 all arranges to the direction slope of keeping away from.

After the processed U-shaped part moves into the material guide hole 3, the U-shaped part falls on the turnover plate 24 from the material guide hole 3 to drive the screw rod 23 to rotate, the screw rod 23 can be driven to rotate by the stepping motor arranged in the support table 22, so that the moving sleeve 25 moves on the screw rod 23 in the direction away from the feeding belt 4, the moving sleeve 25 enables the turnover plate 24 to rotate around the two limiting rods 27 through the driving rod 26, the turnover plate 24 rotates nearly 180 degrees, and the U-shaped part on the turnover plate 24 is reversely buckled on the feeding belt 4 and then is conveyed to the next procedure; the stepping motor drives the screw rod 23 to rotate reversely, so that the moving sleeve 25 moves reversely on the screw rod 23, the turnover plate 24 reversely turns to return to the original position, and the next processed U-shaped part is waited to move into the material guide hole 3.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, 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 modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. A workpiece stamping device comprises a workbench and is characterized in that an elastic lower die assembly is arranged on the workbench, an upper die assembly matched with the elastic lower die assembly is connected above the workbench through a telescopic device, an intermittent feeding assembly is arranged at the discharging end of the workbench, a traction structure is connected between the intermittent feeding assembly and the telescopic device, and the intermittent feeding assembly intermittently feeds a plate on the workbench through the traction structure due to the reciprocating motion of the telescopic device;

2. A workpiece stamping apparatus as defined in claim 1, wherein: the discharge end of the workbench is provided with a mounting hole, the intermittent feeding assembly comprises a ratchet wheel rotatably arranged in the mounting hole and a feeding top plate movably arranged in the mounting hole, the bottom of the feeding top plate is connected with a traction rod rotatably connected with the eccentric position of the ratchet wheel, the feeding top plate is slidably clamped with the inner wall of the mounting hole, and the traction structure is connected with the ratchet wheel to enable the ratchet wheel to rotate in one direction towards the discharge end of the workbench.

3. A workpiece pressing device as defined in claim 2, wherein: the support rail that the mounting hole below was provided with and links to each other with the workstation, the slip joint has the rack on the support rail, links to each other through the pawl between rack and the ratchet, and the middle part and the workstation of pawl are articulated, and the one end and the ratchet cooperation of pawl, the other end and the tooth of a cogwheel on the gear slip counterbalance, are connected with reset spring between the one end of rack and the support rail inner wall, are connected with the pull wire between the other end and the expansion bend.

4. A workpiece pressing apparatus as set forth in any one of claims 1-3, characterized in that: a supporting table positioned below the material guide hole is fixedly connected to the workbench, and the supporting table is positioned on one side of the feeding belt; tilting mechanism includes that the level rotates the lead screw of setting on a supporting bench and is located the baffle below and is located the returning face plate of lead screw top, and threaded sleeve is equipped with the removal cover on the lead screw, and the removal is sheathe in and is rotated and be connected with the actuating lever, and the actuating lever rotates with the one end that the returning face plate is close to the pay-off belt and links to each other, and the equal rotation in returning face plate both sides middle part is connected with the gag lever post that links to each other with a supporting bench, and the lead screw is located between two gag lever posts.

5. A workpiece pressing apparatus as set forth in any one of claims 1-3, characterized in that: elasticity lower mould component is including offering the lower die cavity on the workstation, has the roof that slides and set up in lower die cavity through a plurality of ejecting spring coupling in the lower die cavity, and it has two cutting perforations to open on the workstation, and two cutting perforations are located the different sides in die cavity down on the charge-in route of workstation and be located.

6. A workpiece stamping apparatus as defined in claim 5, wherein: the upper die assembly comprises a male die matched with the lower die groove, the male die is connected with a telescopic rod of the telescopic device through a connector, the two sides of the male die are respectively provided with a cutting knife fixedly connected with the connector, and the cutting end of each cutting knife is positioned below the bottom of the male die; and when the male die is embedded into the lower die groove, the two material cutting knives are embedded into the two cutting through holes in a one-to-one correspondence mode.

7. A workpiece stamping apparatus as defined in claim 6, wherein: every the fenestrate lower extreme of cutting all is the loudspeaker form, and fixedly connected with is located two cutting perforation below and rather than the collection sediment case of intercommunication on the workstation.