CN214417580U - Die carrier for large press - Google Patents

Abstract

The utility model discloses a die carrier for a large press, which comprises an upper die base, a guide pillar, a guide sleeve and a lower die base, wherein the guide pillar sequentially comprises a first straight rod section, a first conical section, a second straight rod section and a second conical section from top to bottom; be equipped with a pair of through-hole that is used for assembling the guide pillar on the die holder, the through-hole includes that taper hole section and diameter are gradually crescent first to third totally three straight section of thick bamboo, taper hole section and first straight section of thick bamboo are used for installing first taper section and the straight pole section of second respectively, the straight section of thick bamboo of second is used for installing second taper section, can fill in the space that the inner wall of the straight section of thick bamboo of second and the outer wall of second taper section are constituteed and press from both sides tight sleeve, can install the lower apron rather than matching in the straight section of thick bamboo of third, can be connected through fastening screw between lower apron and the guide pillar. When the die carrier needs to be maintained, the guide pillar in the die carrier can be quickly disassembled and assembled for repair welding repair processing, and the die holder after the guide pillar is removed can be repaired on common equipment.

Description

Die carrier for large press

Technical Field

The utility model relates to a forge mould technical field, specific die carrier for large-scale press that says so.

Background

In recent years, more and more large forging presses with more than ten thousand tons in the domestic forging industry are used, and the large forging presses are generally provided with more than 2 sets of large press die frames to meet the requirements of forging and forming different products mainly aiming at large automobile forgings such as crankshafts, front shafts, steering knuckles and the like in the automobile forgings. The die carrier structure is generally a pit type integral die carrier guided in a guide post and guide sleeve mode. At present, most of matched die sets in China mainly comprise an upper die holder, a guide sleeve, a guide post and a lower die holder, wherein the guide post is installed on the lower die holder in a hot-press assembly mode, the lowest end of the guide post is fixed by a fastening bolt, the guide sleeve is installed on the upper die holder in a press fit mode, the lower end face of the guide sleeve is fixed by a cover plate, after the die set is used for a period of time, a die set concave cavity for installing a die is deformed due to the pressure stress, cold and hot alternating stress and abrasion of the die, the gap between the guide post and the guide sleeve is overlarge due to the abrasion in the using process, the guide precision is poor, the guide post needs to be maintained periodically, the deformed part needs to be cleaned and then welded and repaired during maintenance, then the original size precision is restored by adopting a machining mode, the guide post part also adopts a surfacing mode and then is machined to the designed size, however, in the actual maintenance process, after the guide post is hot-assembled, the die holder is difficult to take out of the die holder, sometimes, the die holder is easy to cause safety accidents due to the fact that the die holder is disassembled in an unconventional mode in the taking-out process, and therefore the guide column is difficult to maintain.

Therefore, in the mold frame in the prior art, the maintenance cost and the maintenance period of the mold frame are obviously increased due to the difficulty in assembling and disassembling the guide pillar, and therefore, a mold frame with an easily-assembled guide pillar is needed to be found.

SUMMERY OF THE UTILITY MODEL

In order to solve the not enough among the prior art, the utility model provides a die carrier for large-scale press, guide pillar in this die carrier can quick assembly disassembly, when needs maintenance die carrier, can be quick pull down the guide pillar from the die holder in order to weld repair processing, and the die holder after getting rid of the guide pillar also can realize just can accomplishing the maintenance steps such as the repair welding of die holder, machining, surface induction heat treatment on ordinary equipment.

In order to achieve the above object, the utility model discloses a concrete scheme does:

the die carrier for the large-scale press comprises an upper die holder, a guide pillar, a guide sleeve and a lower die holder, wherein the guide pillar sequentially comprises a first straight rod section, a first conical section, a second straight rod section and a second conical section from top to bottom, and the diameter of the small-diameter end of the first conical section, the diameter of the second straight rod section and the diameter of the large-diameter end of the second conical section are equal;

the lower die base is provided with a pair of through holes for assembling guide pillars, the through holes sequentially comprise a conical hole section and three straight cylinder sections from top to bottom, and the diameters of the three straight cylinder sections from top to bottom are gradually increased; the tapered hole section is used for installing a first tapered section matched with the tapered hole section, the first straight cylinder section is used for installing a second straight rod section matched with the first straight cylinder section, the second straight cylinder section is used for installing a second tapered section capable of extending to the lower part of the second straight cylinder section, a clamping sleeve matched with the space in shape can be filled in a space formed by the inner wall of the second straight cylinder section and the outer wall of the second tapered section, the clamping sleeve is used for positioning the second tapered section, a lower cover plate matched with the third straight cylinder section can be installed in the third straight cylinder section, and the lower cover plate and the guide pillar can be connected through fastening screws.

Further, the guide sleeve is in interference fit with the upper die base.

Further, the first straight rod section of the guide column is arranged in the guide sleeve.

Further, the die carrier also comprises a plurality of adjusting screws which can be in threaded connection with the lower cover plate so as to limit the clamping sleeve or the guide pillar, and the axes of the adjusting screws are parallel to the axes of the fastening screws.

Has the advantages that:

(1) the utility model provides a die carrier for large-scale press is through the concrete structure of through-hole on design guide pillar and the die holder to through setting up apron, fastening screw and clamping sleeve down, can realize quick dismantlement and installation location of guide pillar, greatly reduced the maintenance degree of difficulty of large-scale die carrier, improved maintenance efficiency, reduced cost of maintenance, improved safe risk and production efficiency.

(2) The utility model provides a die carrier for large-scale press, simple structure, novelty, convenient operation, production efficiency is high, low in production cost has good popularization and application and worth.

The present invention will be described in further detail with reference to the drawings and specific examples.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the medium mold frame of the present invention.

Fig. 2 is a schematic structural view of the guide post.

FIG. 3 is a schematic view of the structure of the lower die holder.

Graphic notation: 1. the die comprises an upper die holder, 2, a guide sleeve, 3, a guide pillar, 301, a first straight rod section, 302, a first conical section, 303, a second straight rod section, 304, a second conical section, 4, a lower die holder, 5, a fastening screw, 6, a clamping sleeve, 7, an adjusting screw, 8, a lower cover plate, 9, a through hole, 901, a conical hole section, 902, a first straight cylinder section, 903, a second straight cylinder section, 904 and a third straight cylinder section.

Detailed Description

In the description of the present invention, it should be understood that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in fig. 1, which are only for convenience of description and simplification of description, but do not indicate or imply that the mechanism or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the scope of the present invention.

It should be noted that the terms "comprises" and "comprising," and any variations thereof, are intended to cover non-exclusive inclusions, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Referring to fig. 1-3, the die carrier for a large press machine includes an upper die holder 1, a guide pillar 3, a guide sleeve 2 and a lower die holder 4, where the guide pillar 3 includes, from top to bottom, a first straight rod section 301, a first tapered section 302, a second straight rod section 303 and a second tapered section 304 in sequence, and a diameter of a small-diameter end of the first tapered section 302, a diameter of the second straight rod section 303 and a diameter of a large-diameter end of the second tapered section 304 are equal; the lower die holder 4 is provided with a pair of through holes 9 for assembling the guide pillars 3, the through holes 9 sequentially comprise a conical hole section 901 and three straight cylinder sections from top to bottom, and the diameters of the three straight cylinder sections from the first to the third are gradually increased; the tapered hole section 901 is used for installing the first tapered section 302, the side wall of the first tapered section 302 is matched with the inner wall of the tapered hole section 901, the first straight cylinder section 902 is used for installing the second straight rod section 303 matched with the first straight cylinder section 902, the second straight cylinder section 903 is used for installing the second tapered section 304, the length of the second tapered section 304 is slightly smaller than that of the second straight cylinder section 903, a clamping sleeve 6 matched with the space in shape can be filled in a space formed by the inner wall of the second straight cylinder section 903 and the outer wall of the second tapered section 304, the inner diameter of the clamping sleeve 6 is matched with the outer diameter of the second tapered section, the clamping sleeve 6 is used for positioning the second tapered section 304, the third straight cylinder section 904 is provided with the lower cover plate 8 matched with the third straight cylinder section 904, and the lower cover plate 8 and the guide pillar 3 can be connected through the fastening screw 5.

The guide sleeve 2 is in interference fit with the upper die holder 1.

In detail, referring to fig. 1, the first straight section 301 of the guide pillar 3 is installed in the guide sleeve 2.

Please refer to fig. 1, the mold frame further includes a plurality of adjusting screws 7 capable of being in threaded connection with the lower cover plate 8 to limit the clamping sleeve 6 or the guide post 3, and an axis of the adjusting screws 7 is parallel to an axis of the fastening screws 5.

When the formwork is maintained: the upper die base 1 is opened, the guide pillar 3 and the guide sleeve 2 are separated, the lower end face of the lower die base 4 is supported to a certain height, a maintenance space is reserved, the adjusting screw 7 is loosened from the lower portion of the die base, the fastening screw 5 is disassembled, the lower cover plate 8 is disassembled, and the guide pillar 3 is taken out from the upper portion of the lower die base 4. The die carrier reduces the requirement of the maintenance process on equipment, and can realize maintenance operation on a common machine tool.

It is right above the utility model provides a die carrier for large-scale press has carried out detailed introduction, and it is right to have used specific individual example herein the utility model discloses a principle and concrete implementation are elucidated, and above-mentioned embodiment only is used for helping understanding the utility model discloses a method and core thought. It should be noted that any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are within the scope of the present invention for those skilled in the art.

Claims (4)

1. The utility model provides a die carrier for large-scale press, includes upper die base (1), guide pillar (3), guide pin bushing (2) and die holder (4), its characterized in that: the guide pillar (3) sequentially comprises a first straight rod section (301), a first conical section (302), a second straight rod section (303) and a second conical section (304) from top to bottom, and the diameter of the small-diameter end of the first conical section (302), the diameter of the second straight rod section (303) and the diameter of the large-diameter end of the second conical section (304) are equal;

the lower die holder (4) is provided with a pair of through holes (9) for assembling the guide columns (3), the through holes (9) sequentially comprise a conical hole section (901) and three straight cylinder sections from top to bottom, and the diameters of the three straight cylinder sections from the first to the third are gradually increased; the tapered hole section (901) is used for installing a first tapered section (302) matched with the tapered hole section, the first straight cylinder section (902) is used for installing a second straight rod section (303) matched with the first straight rod section, the second straight cylinder section (903) is used for installing a second tapered section (304) capable of extending to the lower part of the second straight cylinder section, a clamping sleeve (6) matched with the shape of the space can be filled in the space formed by the inner wall of the second straight cylinder section (903) and the outer wall of the second tapered section (304), the clamping sleeve (6) is used for positioning the second tapered section (304), a lower cover plate (8) matched with the third straight cylinder section (904) can be installed in the third straight cylinder section, and the lower cover plate (8) and the guide pillar (3) can be connected through a fastening screw (5).

2. The die carrier for the large-scale press machine according to claim 1, characterized in that: the guide sleeve (2) is in interference fit with the upper die base (1).

3. The die carrier for the large-scale press machine according to claim 2, characterized in that: the first straight rod section (301) of the guide post (3) is arranged in the guide sleeve (2).

4. The die carrier for the large-scale press machine according to claim 1, characterized in that: the die carrier further comprises a plurality of adjusting screws (7) which can be in threaded connection with the lower cover plate (8) so as to limit the clamping sleeve (6) or the guide post (3), and the axes of the adjusting screws (7) are parallel to the axes of the fastening screws (5).

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