CN209049998U - A kind of structure for protecting lower cutter guiding accuracy - Google Patents

Abstract

The utility model discloses a kind of structures for protecting lower cutter guiding accuracy; including lower die holder plate and stripper; the top of lower die holder plate two sides at center offer through hole, and the inner bottom surface of through hole is welded with spring along the vertical direction, and the top of the spring is fixed with lower push rod.In the utility model, binder block is during up and down motion, increase the length being oriented between fixed plate, binder block block smooth motion during high speed stamping is effectively ensured, there is not the case where inclination, to which the stability of incision formed punch guiding be effectively ensured, simultaneously can preferably to mold carry out using, increase its using effect, the efficiency of production can preferably be improved, convenient for the use of worker, the feeding of secondary forming die material strip and positioning can preferably be facilitated simultaneously, effectively improve production efficiency, reduce the debugging logical material time, reduce the damage of product damaged by pressure with mold.

Description

A kind of structure for protecting lower cutter guiding accuracy

Technical field

The utility model relates to high speed and precision stamped terminals mold, in particular to a kind of knot for protecting lower cutter guiding accuracy Structure.

Background technique

Mold, in industrial production to be molded, be blow molded, squeeze out, die casting or the methods of forging and forming, smelting, punching press obtain The various moulds and tool of required product, to mold carry out using when, often use high speed and precision stamped terminals mould Tool.

But in the prior art, since some elongate terminal needle class stamping products can use during mould development Structure is cut to tearing, to guarantee the size of product, the characteristics of structure is cutter formed punch in lower die, and part comparison is elongated, It is easily disconnected due to the accumulated error of the fit clearance of the binder block factor short with the length of guiding cooperation in high speed manufacturing processes It splits and damages, cause not producing.

Utility model content

The technical problem to be solved by the present invention is to provide a kind of structures for protecting lower cutter guiding accuracy.

In order to solve the above-mentioned technical problem, the technical solution of the utility model is (being suitable for general application) or this is practical new Type is (suitable for concurrent application) a kind of structure for protecting lower cutter guiding accuracy using the basic ideas of technical solution, packet Including lower die holder plate and stripper, the top of lower die holder plate two sides at center offer through hole, and through hole Inner bottom surface is welded with spring along the vertical direction, and the top of the spring is fixed with lower push rod, and the bottom end of lower push rod with run through The inner surface wall sliding in hole is embedded, and lower mold backing plate is fixed at the top of the lower die holder plate, is fixed at the top of the lower mold backing plate Die block.

It is as above-mentioned technical proposal to further describe:

Recess is offered at the top center of the die block, and the inner surface wall of recess is embedded with binder block.

It is as above-mentioned technical proposal to further describe:

It is embedded at the top center of the binder block and cuts fixed block, the inside for cutting fixed block, which is fixed with to tear, cuts It cuts.

It is as above-mentioned technical proposal to further describe:

The top on the top extends to the inside for cutting fixed block.

It is as above-mentioned technical proposal to further describe:

It is fixed with discharging backing plate at the top of the stripper, is fixed with punch fixing plate at the top of the discharging backing plate.

It is as above-mentioned technical proposal to further describe:

Open up along the vertical direction fluted at the top center of the punch fixing plate, and the bottom end of groove extends to discharging The inside of plate, and the inner surface wall of groove is fixed with punching pin fixed block.

It is as above-mentioned technical proposal to further describe:

Two side external surfaces of the punching pin fixed block slide at bottom margin is embedded with lateral pin, the punching pin fixed block Bottom end be fixed with discharge ram, the inside of the punching pin fixed block, which is embedded with to tear, cuts upper slitter, and tear cut upper slitter bottom end extend To the outside of stripper.

In conclusion by adopting the above-described technical solution, the beneficial effects of the utility model are:

1: in the utility model, binder block increases the length being oriented between fixed plate, effectively during up and down motion Guarantee binder block block smooth motion during high speed stamping, the case where inclination does not occur, led so that incision formed punch be effectively ensured To stability, while preferably mold can be carried out using increasing its using effect, can preferably improve the effect of production Rate convenient for the use of worker, while can preferably facilitate the feeding of secondary forming die material strip and positioning, effectively improve production Efficiency reduces the debugging logical material time, reduces the damage of product damaged by pressure with mold.

2: in the utility model, after molding, upper mold uplink, on binder block starts under the action of lower push rod and spring Certain height is floated, flying height, binder block and die block clearance fit unilateral 0.005 are limited by pressing plate, cut with tearing Knife clearance fit 0.003, after the structure for improving binder block, the mating surface length of binder block and die block is by original 10mm becomes 20mm, increases length of fit, and binder block can be steady movable during up and down, does not have stuck and inclined Phenomenon occurs, so that effective protection tears and cuts knife, produces a desired effect.

Detailed description of the invention

Fig. 1 is the structure elevational cross-sectional view of the utility model；

Fig. 2 is the lower half portion cutaway view Amplified image of the structure of the utility model；

Fig. 3 is the top half cutaway view Amplified image of the utility model.

In figure: 1, lower die holder plate；2, lower mold backing plate；3, die block；4, stripper；5, discharging backing plate；6, punching pin is solid Fixed board；7, punching pin fixed block；8, lateral pin；9, discharge ram；10, it tears and cuts upper slitter；11, binder block；12, it tears and cuts knife；13, it cuts Fixed block；14, lower push rod；15, spring.

Specific embodiment

Specific embodiment of the present utility model is described further with reference to the accompanying drawing.It should be noted that The explanation of these embodiments is used to help to understand the utility model, but does not constitute the restriction to the utility model.This Outside, technical characteristic involved in the various embodiments of the present invention described below is as long as they do not conflict with each other It can be combined with each other.

The present embodiment propose it is a kind of protect lower cutter guiding accuracy structure, structure as shown in Figure 1-3, include lower die holder plate 1 and stripper 4, the top of lower die holder plate 1 two sides at center offer through hole, and the inner bottom surface of through hole is along perpendicular Histogram is fixed with lower push rod 14, and the interior table of the bottom end of lower push rod 14 and through hole to spring 15, the top of spring 15 is welded with Wall sliding is embedded, and the top of lower die holder plate 1 is fixed with lower mold backing plate 2, and the top of lower mold backing plate 2 is fixed with die block 3, pressure Expect that block 11 during up and down motion, increases the length being oriented between fixed plate, binder block 11 is effectively ensured in high speed stamping There is not the case where inclination in smooth motion in the process, so that the stability of incision formed punch guiding is effectively ensured, while can be more preferable Mold is carried out using increasing its using effect, can preferably improve the efficiency of production, convenient for the use of worker, together When can preferably facilitate the feeding of secondary forming die material strip and positioning, effectively improve production efficiency, reduce the debugging logical material time, The damage damaged by pressure with mold for reducing product, after molding, upper mold uplink, work of the binder block 11 in lower push rod 14 and spring 15 Start certain height that floats with lower, flying height is limited by pressing plate, binder block 11 and 3 clearance fit of die block are unilateral 0.005,12 clearance fit 0.003 of knife is cut with tearing, after the structure for improving binder block 11, binder block 11 and die block 3 Mating surface length 20mm is become from original 10mm, increase length of fit, binder block 11 can be steady during up and down Activity, does not have stuck and the phenomenon that tilt, so that effective protection tears and cuts knife 12, produces a desired effect.

Recess is offered at the top center of die block 3, and the inner surface wall of recess is embedded with binder block 11, open up recessed Mouthful, can the position preferably to binder block 11 be fixed, make it when in use, can be more stable, binder block Be embedded at 11 top center and cut fixed block 13, by cut fixed block 13 can preferably to tear cut knife 12 carry out position The fixation set makes it when in use, can be more stable, increases its using effect, while can preferably improve steady Qualitative, the inside for cutting fixed block 13, which is fixed with to tear, cuts knife 12, and the top on top extends to the inside for cutting fixed block 13, unloads The top of flitch 4 is fixed with discharging backing plate 5, convenient for stripper 4 is fixed, makes stripper 4 when in use, Ke Yigeng The stabilization added, the top of discharging backing plate 5 are fixed with punch fixing plate 6, open along the vertical direction at the top center of punch fixing plate 6 Bottom end equipped with groove, and groove extends to the inside of stripper 4, and the inner surface wall of groove is fixed with punching pin fixed block 7, leads to It can be made when in use preferably to the fixation cut upper slitter 10 and carry out position is torn by crossing punching pin fixed block 7, can be better It prevents from tearing and cuts the stuck of upper slitter 10 and inclination, two side external surfaces of punching pin fixed block 7 slide at bottom margin is embedded with cross Pin 8 increases its using effect convenient for punching pin fixed block 7 is fixed, and the bottom end of punching pin fixed block 7 is fixed with discharge ram 9, it is convenient for discharging, keeps it more convenient when in use, the inside of punching pin fixed block 7, which is embedded with to tear, cuts upper slitter 10, And tear and cut the bottom end of upper slitter 10 and extend to the outside of stripper 4, can preferably to tear cut upper slitter 10 carry out using.

Working principle: worker to accurate high-speed punching die carry out using when, first in punching course, unload Flitch 4 and binder block 11 compress material, upper mold downlink, and binder block 11 resets, and tear to cut upper slitter 10 and tear and cut knife 12 and start to material Material carries out punch forming, and after molding, upper mold uplink, binder block 11 starts to float under the action of lower push rod 14 and spring 15 Certain height limits flying height, binder block 11 and 3 clearance fit of die block unilateral 0.005 by pressing plate, cuts with tearing 12 clearance fit 0.003 of knife, after the structure for improving binder block 11, the mating surface length of binder block 11 and die block 3 by 10mm originally becomes 20mm, increases length of fit, and binder block 11 can be steady movable during up and down, does not have stuck The phenomenon that with tilting, produces a desired effect, wherein cut fixed block 13 so that effective protection tears and cuts knife 12 Fixed tear cuts knife 12, and fixed tear of punching pin fixed block 7 cuts upper slitter 10.

The embodiments of the present invention is explained in detail in conjunction with attached drawing above, but the utility model is not limited to be retouched The embodiment stated.For a person skilled in the art, right in the case where not departing from the utility model principle and spirit These embodiments carry out a variety of change, modification, replacement and modification, still fall in the protection scope of the utility model.

Claims (7)

1. a kind of structure for protecting lower cutter guiding accuracy, including lower die holder plate (1) and stripper (4), it is characterised in that: described The top of lower die holder plate (1) two sides at center offer through hole, and the inner bottom surface of through hole is welded along the vertical direction It being connected to spring (15), the top of the spring (15) is fixed with lower push rod (14), and the bottom end of lower push rod (14) and through hole Inner surface wall sliding is embedded, and is fixed with lower mold backing plate (2) at the top of the lower die holder plate (1), and the top of the lower mold backing plate (2) is solid Surely there are die block (3).

2. a kind of structure for protecting lower cutter guiding accuracy according to claim 1, it is characterised in that: the cavity plate is fixed Recess is offered at the top center of plate (3), and the inner surface wall of recess is embedded with binder block (11).

3. the structure of protection lower cutter guiding accuracy according to claim 2, it is characterised in that: the binder block (11) It is embedded with and cuts fixed block (13) at top center, the inside for cutting fixed block (13), which is fixed with to tear, cuts knife (12).

4. the structure of protection lower cutter guiding accuracy according to claim 1, it is characterised in that: prolong on the top on the top Extend to the inside for cutting fixed block (13).

5. the structure of protection lower cutter guiding accuracy according to claim 1, it is characterised in that: the stripper (4) Top is fixed with discharging backing plate (5), is fixed with punch fixing plate (6) at the top of the discharging backing plate (5).

6. the structure of protection lower cutter guiding accuracy according to claim 5, it is characterised in that: the punch fixing plate (6) open up along the vertical direction fluted at top center, and the bottom end of groove extends to the inside of stripper (4), and recessed The inner surface wall of slot is fixed with punching pin fixed block (7).

7. the structure of protection lower cutter guiding accuracy according to claim 6, it is characterised in that: the punching pin fixed block (7) two side external surfaces slide at bottom margin to be embedded with lateral pin (8), and the bottom end of the punching pin fixed block (7) is fixed with Discharge ram (9), the inside of the punching pin fixed block (7), which is embedded with to tear, cuts upper slitter (10), and tears and cut the bottom end of upper slitter (10) and prolong Extend to the outside of stripper (4).