CN110918778A

CN110918778A - Reed nut stamping device

Info

Publication number: CN110918778A
Application number: CN201911315002.9A
Authority: CN
Inventors: 沈永瑞; 孔洪奎; 涂权浩; 戴星; 汪斌
Original assignee: ZHEJIANG YUTAI AUTOMOBILE PARTS CO Ltd
Current assignee: ZHEJIANG YUTAI AUTOMOBILE PARTS CO Ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-03-27

Abstract

The invention discloses a reed nut stamping device, which comprises an upper die and a lower die and is characterized in that a positioning guide mechanism comprises a plurality of positioning needles and positioning holes, the positioning needles are arranged on the upper die at equal intervals along the feeding direction, the stamping mechanism comprises a punching and trimming unit, a boss stamping unit, a primary bending unit, a secondary bending unit, a forming unit and a cutting and discharging unit which are sequentially arranged along the feeding direction, the punching and trimming unit comprises a punching cutter, a trimming cutter, a hole A matched with the punching cutter and a hollow groove matched with the trimming cutter, the boss stamping unit comprises a flanging cutter, a punching boss cutter, a circular ring cutter, a flanging table matched with the flanging cutter, a boss matched with the punching boss cutter and a circular groove matched with the circular ring cutter, both sides of a material belt are stamped, both sides of the material belt are finally cut, and two finished products can be processed at one time, make the material area high-usage, can make full use of take the area that can process in the material, machining efficiency is high moreover.

Description

Reed nut stamping device

Technical Field

The invention relates to the field of stamping dies, in particular to a reed nut stamping device.

Background

A U-shaped leaf nut is generally used for connecting and fastening a plate-shaped member structure. The production process of the reed nut comprises the following steps: punching, punching boss, flanging, bending, forming, cutting off and discharging, the reed needs to be processed in one step along the process route in the existing production process, so that the punching efficiency is low, and the labor cost is greatly increased.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects of the prior art, and provide the stamping device for the reed nut, which has a simple structure and high processing efficiency, and can complete a plurality of processing technologies at one time through a progressive die.

In order to solve the technical problems, the invention is realized by adopting the following technical scheme: a reed nut stamping device comprises an upper die and a lower die, and is characterized by further comprising a positioning guide mechanism and a stamping mechanism, wherein the positioning guide mechanism comprises a plurality of positioning needles and positioning holes, the positioning needles are equidistantly arranged on the upper die along a feeding direction, the positioning holes are correspondingly arranged on the lower die, the stamping mechanism comprises a punching trimming unit, a boss stamping unit, a primary bending unit, a secondary bending unit, a forming unit and a cutting and discharging unit which are sequentially arranged along the feeding direction, the punching trimming unit comprises a punching knife, a trimming knife, a hole A matched with the punching knife and a hollow groove matched with the trimming knife, the punching knife and the trimming knife are arranged on the upper die, the hole A and the hollow groove are arranged on the lower die, the boss stamping unit comprises a flanging knife, a punching boss knife, a circular ring knife, a flanging table platform matched with the flanging knife, a boss matched with the punching table knife and a circular ring groove matched with the circular ring knife, the edge folding knife, the convex table punching knife and the circular ring knife are arranged on the upper die, the lower die is arranged on the edge folding table, the boss and the circular ring groove, the primary bending unit comprises a bending punching knife arranged on the upper die and a bending table arranged on the lower die, the secondary bending unit comprises a bending slotting tool arranged on the upper die and a slotting tool groove arranged on the lower die, a movable bending pushing head is arranged in the slotting tool groove, the bending pushing head is provided with an inclined plane matched with the bending slotting tool, the bending slotting tool pushes the bending pushing head to move in a direction perpendicular to the feeding direction, the forming unit comprises an ejector block arranged on the lower die, and the cutting and discharging unit comprises a cutter arranged on the upper die and a discharging channel arranged on the lower die.

The stamping mechanism comprises a left stamping mechanism and a right stamping mechanism which are symmetrical left and right by taking the positioning guide mechanism as a symmetry axis.

The traction mechanism comprises a traction contact pin, a driving slotting tool, a transmission part and a reset spring, the driving slotting tool is arranged on an upper die, the traction contact pin and the positioning pins are positioned on the same straight line, the traction contact pin is arranged on the transmission part, the transmission part can move back and forth in a strip-shaped guide groove of a lower die, the distance of the front and back movement of the traction contact pin is driven by the transmission part to be equal to the distance between two adjacent positioning pins, an inclined surface matched with the driving slotting tool is further arranged on the transmission part, the driving slotting tool is pressed downwards to push the transmission part to move along the feeding direction, the driving slotting tool rises, and the transmission part resets under the action of the reset spring.

Still include the waste material and cut the mechanism, the waste material cuts the mechanism including setting up the waste material cutter of last mould and setting up the blank groove at the lower mould, the waste material cutter is located and cuts off ejection of compact unit rear.

The invention changes the engineering mould into the progressive mould and only occupies one punch, thereby greatly improving the production efficiency of the reed nut and saving the cost. The two sides of the material belt are subjected to punch forming, and finally the two sides of the material belt are cut, so that two finished products can be processed at one time, the material belt is high in utilization rate, the area which can be processed on the material belt can be fully utilized, and the processing efficiency is high; go up the mould and push down and can mutually support with the lower mould and fix a position, can prevent to take the material to shift in the transportation process.

Drawings

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

FIG. 1 is a schematic structural view of a lower mold according to the present invention;

FIG. 2 is a schematic structural view of an upper mold of the present invention;

fig. 3 is a drawing of a stamping process for a leaf nut.

Detailed Description

Referring to the attached drawings, the reed nut stamping device comprises an upper die 10, a lower die 20, a positioning guide mechanism and a stamping mechanism, wherein the positioning guide mechanism comprises a plurality of positioning needles 71, positioning holes 72 and feeding guide pieces 73, the positioning needles 71 are arranged on the upper die 10 at equal intervals along the feeding direction, the positioning holes 72 are correspondingly arranged on the lower die 20, the positioning holes are punched for a material belt, and the positioning needles are matched with the positioning holes to enable the material belt to be positioned in the subsequent stamping process.

The punching mechanism comprises a punching trimming unit 1, a boss punching unit 2, a primary bending unit 3, a secondary bending unit 4, a forming unit 5 and a cutting and discharging unit 6 which are sequentially arranged along the feeding direction.

The punching and trimming unit 1 comprises a punching knife 11, a trimming knife 12, a hole A13 matched with the punching knife and a hollowed-out groove 14 matched with the trimming knife, the punching knife 11 and the trimming knife 12 are arranged on an upper die 10, the hole A13 matched with the punching knife and the hollowed-out groove 14 matched with the trimming knife are arranged on a lower die 20, the upper die is pressed downwards, the punching knife is inserted into the hole of the lower die to punch a hole in the material strip, and the trimming knife is inserted into the hollowed-out groove to trim the material strip.

Boss punching press unit 2 includes hem sword 21, towards boss sword 22 and ring sword 23 and with hem sword assorted hem platform 24, with towards boss sword assorted boss 25 and with ring sword assorted ring groove 26, hem sword 21, towards boss sword 22 and ring sword 23 all set up at last mould 10, hem platform 24, boss 25 and ring groove 26 all set up at lower mould 20, go up the mould and push down, the hem sword carries out the hem to the material area, it dashes the boss to the material area to dash the boss to dash the round hole on the material area, the ring sword dashes the ring to the round hole on the material area.

The primary bending unit 3 comprises a bending stamping knife 31 arranged on the upper die and a bending platform 32 arranged on the lower die, and the bending stamping knife presses down to bend the part of the material belt to be bent.

The secondary bending unit 4 comprises a bending slotting tool 41 arranged on the upper die and a slotting tool 42 arranged on the lower die, a movable bending pushing head 43 is arranged in the slotting tool 42, the bending pushing head 43 is provided with an inclined surface 431 matched with the bending slotting tool, the bending slotting tool 41 pushes the bending pushing head 43 to move perpendicular to the feeding direction, and the bending pushing head pushes the material belt bending part to further bend the material belt bending part. The upper die is lifted, and the bending pushing head 43 retreats and resets under the elastic force of the spring 44.

The forming unit 5 comprises an ejector block 51 arranged on the lower die, and when the upper die is pressed downwards, the ejector block finally shapes the bent part so that the material belt is in a folded shape.

The cutting and discharging unit 6 comprises a cutter 61 arranged on the upper die and a discharging channel 62 arranged on the lower die, the upper die is pressed downwards, and the cutter cuts off the finished product formed by the material belt, so that the finished product falls out of the discharging channel.

The stamping mechanism comprises a left stamping mechanism and a right stamping mechanism which are symmetrical left and right by taking the positioning guide mechanism as a symmetry axis, and two groups of products can be stamped and processed at one time.

The reed nut stamping device further comprises a traction mechanism, the traction mechanism comprises a traction contact pin 81, a driving contact knife 82, a transmission piece 83 and a return spring, the driving contact knife 82 is arranged on the upper die 10, the traction contact pin 81 and the positioning pins 71 are positioned on the same straight line, the traction contact pin 81 is arranged on the transmission piece 83, the transmission piece 83 can move back and forth in a strip-shaped guide groove 84 of the lower die 20, the transmission piece 83 drives the traction contact pin 81 to move back and forth, the distance between the two adjacent positioning pins 71 is equal to the distance between the two adjacent positioning pins, an inclined surface 85 matched with the driving contact knife is further arranged on the transmission piece 83, the driving contact knife 82 pushes the transmission piece 83 to move downwards in the feeding direction, the driving contact knife 82 rises, and the transmission piece 83 resets under the action. Draw the contact pin to be arranged in inserting the locating hole in material area, go up the mould and push down, the drive slotting tool pushes down along the inclined plane and promotes the driving medium and remove to the drive draws the contact pin rearward movement, and then drives the material area rearward movement, and the lower mould pushes down once, and the material area rearward movement station.

This reed nut stamping device still includes the waste material and cuts the mechanism, the waste material cuts the mechanism including setting up the waste material cutter 91 and the blank groove 92 of setting at the lower mould on last mould, the waste material cutter is located and cuts off ejection of compact unit rear. After the finished product is cut off and discharged, the residual middle part is the waste material, and the waste material cutter can cut the waste material into small sections, so that the subsequent treatment is convenient.

Pay-off guide 73 is equipped with two sets ofly, and a set ofly locates the side cut unit front side that punches a hole, and a set ofly locates to cut off between ejection of compact unit and the waste material cutting mechanism, pay-off guide 73 is including controlling the baffle for control location material area, prevent that the material area from taking place to control the skew at the in-process of carrying.

Claims

1. A reed nut punching device, comprising an upper die and a lower die, and is characterized in that it also includes a positioning guide mechanism and a punching mechanism, the positioning guide mechanism includes several positioning pins and positioning holes, and the positioning pins are along the feeding direction. It is arranged on the upper die at equal intervals, the positioning holes are correspondingly arranged on the lower die, and the punching mechanism includes a punching and trimming unit, a boss punching unit, a primary bending unit, and a secondary bending unit arranged in sequence along the feeding direction. , a forming unit and a cutting and discharging unit, the punching and trimming unit includes a punching knife and a trimming knife, as well as a hole A matched with the punching knife and a hollow slot matched with the trimming knife. and the edge trimming knife is set on the upper die, the hole A and the hollow slot are set on the lower die, and the boss punching unit includes a hemming knife, a punching boss knife, a ring knife and a hemming knife that matches the hemming knife. a table, a boss matching with the punching boss knife and a ring groove matching with the ring knife, the hemming knife, the punching table knife and the ring knife are arranged on the upper die; The table and the annular groove are set on the lower die, the primary bending unit includes a bending punch set on the upper die and a bending table set on the lower die, and the secondary bending unit includes a bending die set on the upper die A blade and a blade slot set on the lower die, the blade slot is provided with a movable bending push head, the bending push head has an inclined surface matched with the bending blade, the bending blade Pressing down pushes the bending pusher to move perpendicular to the feeding direction, the forming unit includes a top block arranged on the lower die, and the cutting and discharging unit includes a cutter arranged on the upper die and a discharging channel arranged on the lower die.

2 . The reed nut punching device according to claim 1 , wherein the punching mechanism comprises a left punching mechanism and a right punching mechanism which are symmetrical to each other with the positioning and guiding mechanism as the symmetry axis. 3 .

3 . The reed nut punching device according to claim 1 , further comprising a traction mechanism, the traction mechanism comprising a traction pin, a driving blade, a transmission member and a return spring, and the driving blade is 3 . Set on the upper die, the traction pin, the transmission part and the return spring are set on the lower die, the traction pin and the positioning pin are on the same line, the traction pin is set on the transmission part, and the transmission part can be forward and backward. In the bar-shaped guide groove of the movable setting lower die, the distance that the transmission member moves back and forth with the traction pins is equal to the distance between two adjacent positioning pins, and the transmission member is also provided with a slope matching the driving blade, The driving blade presses down and pushes the transmission member to move along the feeding direction, the driving blade rises, and the transmission member is reset under the action of the return spring.

4 . The reed nut punching device according to claim 1 , further comprising a scrap cutting mechanism, the scrap cutting mechanism comprising a scrap cutter arranged on the upper die and a cutting material arranged on the lower die 4 . slot, the scrap cutter is located behind the cutting and discharging unit.