CN210523529U

CN210523529U - Ratchet wheel piece extruding and cutting die

Info

Publication number: CN210523529U
Application number: CN201921151386.0U
Authority: CN
Inventors: 韦清波; 程华忠
Original assignee: Suzhou Hengquanxin Hardware Technology Co Ltd
Current assignee: Suzhou Hengquanxin Hardware Technology Co Ltd
Priority date: 2019-07-22
Filing date: 2019-07-22
Publication date: 2020-05-15
Anticipated expiration: 2029-07-22

Abstract

The utility model discloses an crowded mould of cutting of ratchet piece, including last mould and lower mould, it is provided with first location punching pin, second location punching pin, first crowded punching pin of cutting and the crowded punching pin of cutting of second to go up the mould, first location punching pin with second location punching pin is worn to establish first through-hole with in the second through-hole, first crowded punching pin of cutting with the crowded punching pin of cutting of second respectively with first ratchet piece with the outline of second ratchet piece cooperatees, the lower mould correspondence be equipped with first crowded punching pin complex first go into the son and with the crowded punching pin complex second of cutting of second goes into the son. The utility model discloses crowded first crowded punching pin of cutting the mould and the crowded punching pin of cutting of second can be crowded to cut first ratchet spare and second ratchet spare simultaneously, and the pulling force on material surface is little when crowded cutting to can reduce the corner collapse, the cut surface is more even.

Description

Ratchet wheel piece extruding and cutting die

Technical Field

The utility model relates to an crowded mould of cutting especially relates to a crowded mould of cutting of ratchet spare.

Background

In the process of punching and forming the ratchet wheel piece, because the punching material is thick, the cutting surfaces at the periphery of the punched ratchet wheel piece are uneven, and the formed collapsed angle is large. Because there is strict requirement to ratchet piece appearance in the production process, the product cut surface will distribute evenly promptly, and the positive corner collapse of product cutting off will be little, if will reach the requirement of product, can only with the manual work after the CNC processing burr that falls, adopt above-mentioned method processing loaded down with trivial details, inefficiency is unfavorable for improving production efficiency.

SUMMERY OF THE UTILITY MODEL

Based on prior art, the utility model discloses an aim at provides an crowded mould of cutting of ratchet spare to the above-mentioned defect among the prior art, and the crowded back cut surface corner collapse of cutting of ratchet spare is little, and the blade is even, can effectively replace CNC processing and artifical deckle edge, improves machining efficiency.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme: a ratchet wheel piece extruding and cutting die comprises a ratchet wheel piece and a ratchet wheel piece, wherein a first through hole and a second through hole are formed in the ratchet wheel piece and the ratchet wheel piece respectively, the extruding and cutting die comprises an upper die and a lower die, the upper die is provided with a first positioning punch, a second positioning punch, a first extruding and cutting punch and a second extruding and cutting punch, the first positioning punch and the second positioning punch penetrate through the first through hole and the second through hole, the first extruding and cutting punch and the second extruding and cutting punch are matched with the outer contour of the ratchet wheel piece and the outer contour of the second ratchet wheel piece respectively, and the lower die is correspondingly provided with a first insert matched with the first extruding and cutting punch and a second insert matched with the second extruding and cutting punch.

Furthermore, the utility model discloses still provide following subsidiary technical scheme: the blanking gap between the first extruding and cutting punch and the first insert is 0.02mm on one side, and the blanking gap between the second extruding and cutting punch and the second insert is 0.02mm on one side.

The upper die is sequentially provided with an upper die base, an upper base plate, an upper clamping plate, a stop plate and a stripper plate from top to bottom, and the first positioning punch, the second positioning punch, the first extruding and cutting punch and the second extruding and cutting punch are all fixed on the upper clamping plate.

The lower die is sequentially provided with a lower supporting plate, a lower pad, a lower die holder, a lower pad and a lower die plate from bottom to top, and the first insert and the second insert are fixed on the lower die plate.

And a high-strength rubber for buffering is arranged between the lower supporting plate and the lower die base.

Compared with the prior art, the utility model has the advantages of: 1. the extrusion cutting die of the utility model extrudes and cuts the ratchet wheel piece blank in the opposite direction, and the tension on the surface of the material is small during extrusion cutting, thereby reducing the corner collapse and ensuring that the cut surface is more uniform;

2. the utility model discloses be equipped with first crowded cutting punching pin, second crowded cutting punching pin and cooperate first income and second income of first crowded cutting punching pin and second crowded cutting punching pin on crowded cutting die utensil, can crowd the first ratchet spare and the second ratchet spare of cutting ratchet spare blank material simultaneously and cut, improve crowded cutting efficiency;

3. the utility model discloses mould is equipped with first location punching pin and second location punching pin on crowded mould of cutting, can restrict the hole and warp when location ratchet spare.

Drawings

Fig. 1 is a schematic structural view of a punching die.

Fig. 2 is a schematic structural view of the extrusion cutting die.

Fig. 3 is a schematic structural view of a first insert of the extrusion-cutting die.

Fig. 4 is a structural schematic diagram of a second insert of the extrusion-cutting die.

Fig. 5 is a schematic view of a ratchet member blank construction.

Detailed Description

The following non-limiting detailed description of the present invention is provided in connection with the preferred embodiments and accompanying drawings.

The utility model provides a ratchet wheel spare processing technology specifically includes following step: firstly, punching out the ratchet wheel piece blank 3 through a punching die to reduce extrusion cutting allowance, then extruding and cutting the ratchet wheel piece blank 3 in the opposite direction through an extrusion cutting die to reduce the tension of extrusion cutting on the surface of the material and reduce the corner collapse, and finally vibrating and grinding the cut surface of the extruded and cut ratchet wheel piece to achieve the bright belt meeting the requirements.

As shown in fig. 1 and 5, the punching die comprises an upper punching die 1 and a lower punching die 2, the upper punching die 1 is sequentially provided with an upper punching die holder 11, an upper punching plate 12, an upper punching pad 13, an upper punching clamping plate 14 and a female die plate 15 from top to bottom, an upper punching pad leg 16 is fixedly connected between the upper punching die holder 11 and the upper punching pad 13, and an upper inner stripper 17 is arranged in the female punching die plate 15. The punching upper beating plate 12 is fixed on the punching upper backing plate 13 through bolts and can move up and down along the vertical direction, a high-strength rubber 18 is arranged between the upper end of the punching upper beating plate and the punching upper die base 11, a beating rod 19 used for transmitting pressure to an upper inner release 17 is arranged in the middle of the lower end of the punching upper beating plate 12, the punching beating rod 19 penetrates and is sleeved between the punching upper backing plate 13 and the punching upper clamping plate 14, and the length of the punching beating rod is longer than the total thickness between the punching upper backing plate 13 and the punching upper clamping plate 14. By punching the upper knockout plate 12, the stripping force of the high-force glue 18 can be transmitted to the upper punch inner stripper 17 through the knockout pin 19.

The lower stamping die 2 is sequentially provided with a lower stamping pad 21, a lower stamping die holder 22, a lower stamping clamp plate 23 and an outer stripper plate 25 from bottom to top, a male die 24 is arranged in the lower stamping clamp plate 23 and the outer stamping supporting plate 25, and the male die 24 and the female die plate 15 are matched with each other to blank ratchet wheel blank 3. The outer stripper plate 25 is connected with the lower stamping die holder 22 through a spring 26, and the outer stripper plate 25 is supported. The lower punching die holder 22 is provided with a guide post 27 penetrating through the outer stripper plate 25 and the lower punching clamp 23, so that the outer stripper plate 25 and the lower punching clamp 23 can move up and down along the guide post 27 to prevent deviation. After the die is closed and punched, the male die 24 moves downwards, and the ratchet piece is blocked by the outer stripper plate 25 and falls off from the male die 24 without manually dropping the ratchet piece. The utility model discloses the die-cut mould during operation of ratchet spare makes the punching press go up mould 1 and punching press lower mould 2 closure under the effect of punch force, takes off 17 and punching press in the punching press and takes off board 25 simultaneously and act on the pressure material outward, compresses tightly ratchet spare blank 3, and the punch press continues downwards, because take off 17 and punching press in the punching press and take off the stroke surplus of board 25 outward, the meeting is upwards and the downward contraction simultaneously, at this moment male mold 24 and the 15 contact material that begin of female template. When the punch stroke is reached, the upper punch die 1 and the lower punch die 2 begin to separate, the upper inner stripper 17 is pressed to the striking plate through the rebound force of the high-strength rubber 18 and is transmitted to the upper inner stripper through the striking rod, and then the upper inner stripper 17 separates the punched ratchet piece blank 3 from the female die plate 15. The outer stripper plate 25 will move upwards under the resilience of the spring 26 to eject the waste material that has been placed on the male mold 24.

As shown in fig. 2 to 4, the extrusion cutting die includes an upper die 10 and a lower die 20, and the upper die 10 is provided with an upper die holder 101, an upper backing plate 102, an upper clamping plate 103, a stopper plate 104, and a stripper plate 105 in sequence from top to bottom. The lower die 20 is provided with a lower supporting plate 201, a lower pad 202, a lower die holder 203, a lower pad 204 and a lower die plate 205 from bottom to top in sequence. And a high-strength rubber 208 for buffering is arranged between the lower supporting plate 201 and the lower die holder 203, and preferably, the high-strength rubber 208 can also be replaced by a nitrogen gas spring. An outer guide post 100 is arranged between the upper die holder 101 and the lower die holder 203.

With further reference to fig. 5, the ratchet member blank comprises a first ratchet member 31 and a second ratchet member 32, and the first ratchet member 31 and the second ratchet member 32 are provided with a first through hole 33 and a second through hole 34. The extrusion cutting die comprises a first positioning punch 106 and a second positioning punch 107 which are fixed on the upper clamping plate 103, and the first positioning punch 106 and the second positioning punch 107 are respectively arranged in the first through hole 33 and the second through hole 34 in a penetrating mode, so that deformation of the holes is limited while a workpiece is positioned. The extrusion-cutting die further comprises a first extrusion-cutting punch 108 and a second extrusion-cutting punch 109 which are arranged on the upper clamping plate 103 and matched with the outer contour of the ratchet wheel piece, and the first extrusion-cutting punch 108 and the second extrusion-cutting punch 109 are correspondingly arranged at positions above the first ratchet wheel piece 31 and the second ratchet wheel piece 32. The extrusion cutting die further comprises a first insert 206 and a second insert 207 which are fixed on the lower template 205, and the first insert 206 and the second insert 207 are correspondingly arranged at positions below the first ratchet wheel piece 31 and the second ratchet wheel piece 32. The blanking gap between the extrusion cutting punch and the insert is 0.02mm at one side. Because the shearing force of the product is very large, the first insert 26 and the second insert 27 are subjected to TD heat treatment during processing to ensure the hardness of the material. When in extrusion cutting, the first extrusion cutting punch 108 and the second extrusion cutting punch 109 simultaneously downwards and respectively match with the first insert 206 and the second insert 207 to extrude and cut the first ratchet wheel piece 31 and the second ratchet wheel piece 32, and the pulling force on the surface of the material is small during extrusion cutting, so that the corner collapse can be reduced, and the cutting surface is more uniform.

The specific machining process of the ratchet piece is as follows, a male die 24 of a punching die is positioned on a lower die 2, a female die plate 15 is positioned on an upper die 1, the punching die is used for carrying out rough punching to process ratchet piece rough blanks 3, then, an extrusion cutting die is used for carrying out secondary machining, when secondary extrusion cutting is carried out, the ratchet piece rough blanks 3 are placed between a lower die plate 205 and a stripper plate 105, and as a punch of the extrusion cutting die is positioned on the upper die and is positioned on the lower die 1, the extrusion cutting die carries out reverse extrusion cutting on the ratchet piece rough blanks 3, the ratchet piece 4 is extruded and cut in the reverse direction, the collapsed angle of the ratchet piece 4 is reduced, and the cutting surface cutting edges around the ratchet piece are more; after the product is extruded and cut by the extruding and cutting die, the appearance of the product meets the requirement, and the bright belt of the cut surface of the product is improved by matching vibration grinding equipment with grinding polishing solution.

The utility model has the advantages that: 1. the extrusion cutting die of the utility model extrudes and cuts the ratchet wheel piece blank in the opposite direction, thereby reducing the pulling force of extrusion cutting on the material surface, reducing the corner collapse and ensuring the uniform cut surface;

2. the utility model discloses crowded first income and the second of cutting the punching pin and cooperating the crowded punching pin of cutting of first crowded punching pin, second and second on cutting the mould is crowded, can crowd the first ratchet spare and the second ratchet spare of cutting ratchet spare blank simultaneously and cut, improve crowded efficiency of cutting.

It should be noted that the above-mentioned preferred embodiments are only for illustrating the technical concepts and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention accordingly, and the protection scope of the present invention cannot be limited thereby. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides a crowded mould of cutting of ratchet spare, ratchet spare blank (3) include first ratchet spare (31) and second ratchet spare (32), first through-hole (33) and second through-hole (34) have been seted up respectively to first ratchet spare (31) and second ratchet spare (32), and crowded mould of cutting includes mould (10) and lower mould (20), its characterized in that: the upper die (10) is provided with a first positioning punch (106), a second positioning punch (107), a first extruding and cutting punch (108) and a second extruding and cutting punch (109), the first positioning punch (106) and the second positioning punch (107) are arranged in the first through hole (33) and the second through hole (34) in a penetrating mode, the first extruding and cutting punch (108) and the second extruding and cutting punch (109) are matched with the outer contour of the first ratchet wheel piece (31) and the outer contour of the second ratchet wheel piece (32) respectively, and the lower die (20) is correspondingly provided with a first insert (206) matched with the first extruding and cutting punch (108) and a second insert (207) matched with the second extruding and cutting punch (109).

2. A ratchet member extrusion die as claimed in claim 1, wherein: the blanking gap between the first extruding and cutting punch (108) and the first insert (206) is 0.02mm on one side, and the blanking gap between the second extruding and cutting punch (109) and the second insert (207) is 0.02mm on one side.

3. A ratchet member extrusion die as claimed in claim 1, wherein: the die is characterized in that the upper die (10) is sequentially provided with an upper die base (101), an upper base plate (102), an upper clamping plate (103), a stop plate (104) and a stripper plate (105) from top to bottom, and a first positioning punch (106), a second positioning punch (107), a first extruding and cutting punch (108) and a second extruding and cutting punch (109) are all fixed on the upper clamping plate (103).

4. A ratchet member extrusion die as claimed in claim 1, wherein: the lower die (20) is sequentially provided with a lower supporting plate (201), lower cushion feet (202), a lower die holder (203), a lower cushion plate (204) and a lower die plate (205) from bottom to top, and the first insert (206) and the second insert (207) are fixed on the lower die plate (205).

5. The ratchet member extrusion die of claim 4, wherein: and a high-strength rubber (208) for buffering is arranged between the lower supporting plate (201) and the lower die base (203).