CN2754761Y - Block clamping component of continuous metal drawing apparatus - Google Patents

Abstract

The utility model relates to a novel gripping tong block structure piece of a metal continuous drawing machine, which is used for the production of metal cold pull material. The utility model is characterized in that a base body component is a combined inlay type structure, is a block-shaped position angle component of a shaped oblong block, and is a quadrangle from the cross section, and furthermore, the upper part of the quadrangle is in parallel with the lower part of the quadrangle, and the tail end of the quadrangle is provided with a triangular notch; the height is slightly higher than the height of the positioning angle of the gripping tongs; two included angles on the upper part are 73 DEG; a block-shaped notch arranged on the tail of the base body component is matched with the size of the positioning angle component; the positioning angle component used for thermal hot refining is inlaid in the block-shaped notch of the base body component. When the utility model is operated, the gripping tongs arranged on the two sides of machined bar material have good wear-resistance damage-resistance capability under strong impact. When the positioning angle component is damaged (for long-term use), the positioning angle component can be exchanged. The utility model has the characteristics of novel design, convenient installation and manufacture, high hardness and exchangeable performance. The utility model solves the technical problem that the positioning angles of the gripping tongs are easy to damage due to impact, the service life is high, the utility model avoids the integral abandonment of the gripping tongs and reduces the production cost.

Description

The novel block clamping structural member of continuous metal drawing apparatus

Technical field

The utility model relates to the apparatus for cold rolling of metallurgy industry, refers in particular to the clamp device of embracing of continuous metal drawing apparatus.

Background technology

Bar is common metallic article.The machine-shaping of metallurgy industry metal finished product bar generally can be divided into thermo forming (hot rolling) and cold-formed (cold-drawn) two kinds of forms.The production procedure of high-quality cold drawing of metal bar is: (1) drawbench becomes to meet the semi-finished metal bar of dimensions with the metal stock cold-drawn; (2) aligning calender (just rectifying the stone roller machine) is aligned with surperficial calendering the semi-finished product metal bar and is handled, and makes straight, any surface finish of metal bar; (3) supersonic reflectoscope is detected a flaw to metal bar, produces qualified finished product metal bar.

Continuous metal drawing apparatus is common cold-rolling mill, it is to drive two drawing dollies by main cam mechanism, alternate reciprocating motion, embrace pincers (two sizes, the block clamping structural member that shape is identical by two pairs on the dolly again, be symmetrically arranged and constitute one pair armful of pincers) metal bar is held tightly, it is pulled out from sintered-carbide die, metal bar is shaped by technological requirement, and improve the mechanical performance of its metal bar.

The block clamping structural member is the important accessory of critical component in the metal cold drawing equipment, it is directly to contact and stressed critical component with metal bar, so embrace the positional accuracy of pincers and the departure size after the power that is impacted, be directly connected to the qualification rate of cold drawing of metal surface quality of products and finished product and the cost of product.Increase if locate the deviation of inaccurate or the back location of being impacted, the obvolvent that will make two (pairs) to embrace pincers is not moved in parallel lines, will make product surface that serious catcher mark is arranged and crushes, and makes product cause in batch defective.Present block clamping structural member, shape are the panes that integral body is head, tail different form, and the working face of cold-drawn metal bar (just directly contacting with metal bar) is along a side triangle indent of pane; Structure is the accurate synthetic complex of outside base member and interior Side working face member, and the metal material that base member and working face member are adopted is different fully, and (outside base member is an ordinary carbon steel, and interior Side working face member is an alloy tool steel.) (on the one hand, after the block clamping structural member machined moulding, if carry out modifier treatment, because the characteristic of two kinds of metal materials is different fully, explosion can take place the block clamping structural member because the ordinary carbon steel material of base member can't increase the modifier treatment of hardness; On the other hand, before the block clamping structural member machined moulding, if carry out the modifier treatment of ordinary carbon steel, then machined moulding difficulty), therefore, the base member material hardness of finished product block clamping structural member is lower.Therefore, (orientation angle is at the afterbody of block clamping structural member, at the back side of working face to belong to the orientation angle position of base member; 2 pane block clamping structural members are formed one pair and are embraced pincers, are arranged on the both sides of processed bar, are block clamping structural member head along the bar direction of advance, otherwise are afterbody), hardness ratio is lower.

The block clamping structural member is the direct contact of drawbench and processed bar, during metal bar cold-drawn moulding, the folding of block clamping structural member is rapid, and embrace the stressed of pincers for clamping impact longitudinally along embracing, and the power of bump all acts on the orientation angle (size of impact is relevant by hardness, the compression ratio of processed metal material, and finally this power all acts on the orientation angle of embracing pincers) of block clamping structural member afterbody.So during each drawing, orientation angle all will be subjected to powerful bump, promptly causes after a period of time and embraces pincers orientation angle damage (or hitting flat), and the service life of pincers is embraced in influence: on the one hand, the pincers of embracing of orientation angle damage make the setting accuracy reduction or lose the difficult quality guarantee of product to be processed; On the other hand, for guaranteeing product quality, the scrappage of embracing pincers increases greatly, causes production cost (every purchasing price of embracing pincers is 12000 yuan/roots) to rise significantly.

Summary of the invention

The utility model designs the novel block clamping structural member of a kind of continuous metal drawing apparatus, it is architecture advances to former armful of pincers, it adopts split type mosaic texture design, the orientation angle (flimsy main stress point) of original one-piece base body member is separated, the block orientation angle member designs novelty of separating, simple installation and easy to make, cost is low, has hardness higher (can improve the modifier treatment of hardness separately), change characteristics easily, solved the technical problem that the easy damage of orientation angle (or hitting flat) of block clamping structural member causes, the service life that the utility model has not only improved the block clamping structural member, (orientation angle hardness was higher, long service life), also greatly reduce production cost (damage or hit flat orientation angle and can not cause scrapping fully of block clamping structural member, only need new block orientation angle member of transposing, just can reuse, and the manufacturing cost of block orientation angle member only be block clamping structural member purchasing price 6/10000ths).

The novel block clamping structural member of the continuous metal drawing apparatus that the utility model provides comprises outside base member 2 and interior Side working face member 3, and it is characterized in that: base member 2 is split, embedded structure; Being placed in the block orientation angle member 1 of base member 2 afterbodys, is the pane that a stature, tail two ends are different form; From cross section, orientation angle member 1 is the rectangle of a B * H, width B=B1, height H=(1.2～1.5) H1=(0.6～0.8) H2, H1＜H＜H2 just, H1 is the height of block clamping structural member afterbody orientation angle, and H2 is the minimum constructive height of working face member 3 indentation, there of block clamping structural member, and B1 is the width of block clamping structural member; From the longitudinal section, orientation angle member 1 is a quadrangle parallel up and down, that tail end has vee, upper left corner angle α=69 °～77 °, (size of lower left corner angle is unmodifiable to upper right corner angle β=69 °～78 °, lower right corner angle=180 °-β; The angle optimization of angle α and β can make the suffered power in stressed inclined-plane can transfer on the fixed mount of embracing pincers the service life of improving block orientation angle member 1 moment), length L=(1.2～2.0) B1; The afterbody of base member 2 has a block breach, the shape of block breach, size, size and block orientation angle member 1 coupling, both tolerance that matches=+ 0.030～0.065mm; Block orientation angle member 1 after the machined moulding is embedded in the block breach of base member 2 afterbodys; Above-mentioned in conjunction with constituting the utility model.

The material of block orientation angle member 1 is modified heat treated superior alloy steel.

After the 1 machined moulding of block orientation angle member, carry out modified heat treatment (improve the hardness of block orientation angle member 1, improve service life) earlier, be embedded in again in the block breach of base member 2 afterbodys.

Compared with prior art, the utlity model has following advantage:

1. reasonable in design, simple in structure;

2. easy to make, install, change easy;

3. the block orientation angle member 1 hardness height of modifier treatment, the life-span is long;

4. stopped scrapping of block clamping structural member substantially, production cost is low;

5. good product quality.

Description of drawings:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is the A-A profile of Fig. 1;

Fig. 4 is the structural representation of block orientation angle member;

Specific embodiments:

Shanghai iron company of company cold-drawn section steel works is implemented the utility model patent, online cold-drawn metal bar on continuous metal drawing apparatus equipment.Block clamping structural member (the width B 1=22mm that comprises outside base member 2 and interior Side working face member 3, the height H 1=9mm of afterbody orientation angle, the minimum constructive height H2=17mm of working face member 3 indentation, there), it is characterized in that: base member 2 is split, embedded structure; Be placed in the block orientation angle member 1 of base member 2 afterbodys, it is the pane that a stature, tail two ends are different form, from cross section, be a rectangle, width B=B1=22mm, height H=(1.2～1.5) H1=(0.6～0.8) H2=13mm, from the longitudinal section, be a quadrangle parallel up and down, that tail end has vee, upper left corner angle α=71 °, upper right corner angle β=74 °, length L=(1.2～2.0) B1=36mm; The afterbody of base member 2 has a block breach, the shape of block breach, size, size and block orientation angle member 1 coupling, both tolerance that matches=+ 0.045～0.060mm; Block orientation angle member 1 after the superior alloy steel material machined moulding after the modified heat treatment, is embedded in the block breach of base member 2 afterbodys.

During work (continuous metal drawing apparatus cold-drawn metal bar), 2 one pair armful of pincers that novel block clamping structural member is formed, be arranged on the both sides of processed bar, block orientation angle member 1 with higher hardness has kept good wear-resisting invulnerability energy under strong impaction, solved the problem of the easy damage of orientation angle (or hitting flat) preferably, avoided owing to orientation angle is damaged the product quality problem that causes; In long-term the use, even block orientation angle member 1 is subjected to damage, only need new block orientation angle member 1 of transposing, the block clamping structural member just can be reused, and has avoided the integral body of block clamping structural member to scrap.

The utility model modern design, simple installation and easy to make, cost is low, it is higher (passable to have hardness Improve separately the modifier treatment of hardness), change easily characteristics, solved the location of block clamping structural member The technical problem that the easy damage in angle (or hitting flat) causes has improved product quality problem, has not only improved block clamping The work service life of structural member, (orientation angle hardness is higher, long service life) also avoided the block clamping structure The integral body of part scrap (Lian Lalian pulls out every equipment need embrace pincers with four, and domestic no spare part is purchased spare part such as need, Can only be from Japanese original paper import, every is embraced pincers is 12000 yuan/roots, the cost of manufacture of block orientation angle member 1 8 yuan/root), greatly reduce production cost the service life of having improved the block clamping structural member, satisfied metal Lian Lalian pulls out the safety in production operation of machine.

Claims (2)

1, the novel block clamping structural member of continuous metal drawing apparatus comprises outside base member (2) and interior Side working face member (3), and it is characterized in that: base member (2) is split, embedded structure; Being placed in the block orientation angle member (1) of base member (2) afterbody, is the pane that a stature, tail two ends are different form; From cross section, orientation angle member (1) is the rectangle of a B * H, width B=B1, height H=(1.2～1.5) H1=(0.6～0.8) H2, H1＜H＜H2 just, H1 is the height of block clamping structural member afterbody orientation angle, and H2 is the minimum constructive height of working face member (3) indentation, there of block clamping structural member, and B1 is the width of block clamping structural member; From the longitudinal section, orientation angle member (1) is a quadrangle parallel up and down, that tail end has vee, upper left corner angle α=69 °～77 °, upper right corner angle β=69 °～78 °, length L=(1.2～2.0) B1; The afterbody of base member (2) has a block breach, the shape of block breach, size, size and block orientation angle member (1) coupling, both tolerance that matches=+ 0.030～0.065mm; Block orientation angle member (1) after the machined moulding is embedded in the block breach of base member (2) afterbody; Above-mentioned in conjunction with constituting the utility model.

2, the novel block clamping structural member of continuous metal drawing apparatus according to claim 1 is characterized in that: the material of block orientation angle member (1) is modified heat treated superior alloy steel.

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