CN220942766U

CN220942766U - Shell stretching die

Info

Publication number: CN220942766U
Application number: CN202322590327.6U
Authority: CN
Inventors: 江承霖
Original assignee: Honggang Precision Industry Co ltd
Current assignee: Honggang Precision Industry Co ltd
Priority date: 2023-09-22
Filing date: 2023-09-22
Publication date: 2024-05-14
Anticipated expiration: 2033-09-22

Abstract

The utility model relates to the field of stretching dies, in particular to a shell stretching die, which comprises: the stamping assembly comprises a stamping driving mechanism, a stamping rod and a replacement punch, the stamping rod is arranged at the lower end of the stamping driving mechanism, a chute is arranged on the stamping rod in a ring mode, a turntable is arranged at the upper end of the stamping rod in a rotating mode, an annular limiting block is arranged at the lower end of the turntable, the replacement punch is slidably sleeved on the outer side of the stamping rod, a sliding block spliced with the chute is arranged on the replacement punch, an annular connecting block is arranged at the upper end of the replacement punch, an annular slot spliced by the annular limiting block is arranged in the annular connecting block, the lower die assembly comprises a base, a replacement die holder and a limiting assembly, a cavity is formed in the base, the replacement die holder is arranged in the cavity, four groups of limiting assembly rings are arranged in the replacement die holder, the limiting assembly rings comprise a cylinder and a pushing plate, and the pushing plate is fixed on one side of the cylinder and is in contact with the replacement die holder.

Description

Shell stretching die

Technical Field

The utility model relates to the field of stretching dies, in particular to a shell stretching die.

Background

The mould is the main technological equipment of industrial production, and the mould industry is the basic industry. The stretching thin-wall forming process is mainly suitable for the production of thin-plate parts with large size and small curvature. The sheet parts are molded by a general die from top to bottom or from bottom to top, and the molded parts are in a barrel-shaped structure, but in practice, parts with different inner diameters can be processed, and the whole lower die holder and the whole punching head assembly are required to be replaced, or a new flow production line is added, so that the production cost is increased, and meanwhile, the whole die holder or the whole punching head assembly is replaced, so that the operation efficiency is reduced. Therefore, in order to solve the defects in the prior art, a shell stretching die with a simple structure needs to be designed.

Disclosure of utility model

The utility model provides a shell stretching die for solving the problems in the prior art.

The aim of the utility model can be achieved by the following technical scheme: a shell stretching die comprising: the stamping assembly comprises a stamping driving mechanism, a stamping rod and a replacement punch, the stamping rod is arranged at the lower end of the stamping driving mechanism, a chute is arranged on the stamping rod in a surrounding mode, a rotary table is arranged at the upper end of the stamping rod in a rotating mode, an annular limiting block is arranged at the lower end of the rotary table, the outer side of the stamping rod is arranged on the sliding sleeve of the replacement punch, a sliding block inserted into the chute is arranged on the replacement punch, an annular connecting block is arranged at the upper end of the replacement punch, an annular slot for inserting the annular limiting block is arranged in the annular connecting block, the lower die assembly comprises a base, a replacement die holder and a limiting assembly, a cavity is arranged inside the base, the replacement die holder is arranged in the cavity, cavities are formed in the replacement die holder, four groups of limiting assembly rings are arranged, the limiting assembly comprises a cylinder and a pushing plate, and the pushing plate is fixed on one side of the cylinder and is in contact with the end face of the replacement die holder.

Further improvement, annular limiting block interval is provided with three groups, the carousel upper end interval is provided with three sets of fastening bolt, fastening bolt corresponds threaded connection annular limiting block, just fastening bolt lower extreme and annular connecting block.

Further improvement, the cavity bottom surface interval is provided with the jack, the replacement die holder bottom is equipped with the inserted bar that matches the setting with the jack.

Further improvement, the replacement die holder middle part is equipped with the annular groove, push pedal middle part is equipped with annular groove complex inserted sheet.

Further improvement, the push pedal top is equipped with the backup pad, the base upper end is equipped with the removal groove that supplies the backup pad to slide.

Compared with the prior art, the shell stretching die has the beneficial effects that:

The sliding block of the replacement punch is slidably inserted into the sliding groove of the punch rod to limit the rotation of the replacement punch, and then the annular limiting block at the lower end of the replacement punch is rotated to be inserted into the annular slot in the annular connecting block on the replacement punch, so that the replacement punch is fixed and cannot fall off; the replacement die holder of lower extreme is put into the cavity of base after through cylinder and push pedal cooperation, carries out four directions to the replacement die holder and fixes, according to the part diameter of needs processing, the replacement drift on the direct replacement punch rod of not unidimensional punch rod need not to dismantle the replacement with whole punch assembly to the replacement die holder of lower extreme is fixed through spacing subassembly clamp, conveniently changes, and then has improved change efficiency, and reduction in production cost.

Drawings

FIG. 1 is a schematic view of the structure of the present utility model

FIG. 2 is a schematic view of a part of a stamping assembly according to the present utility model

FIG. 3 is a schematic view of a partial structure of a lower die assembly according to the present utility model

FIG. 4 is a schematic view of a base structure according to the present utility model

In the figure, the 1-punching component, the 11-punching driving mechanism, the 12-punch rod, the 121-chute, the 13-replacement punch, the 131-slider, the 132-annular connecting block, the 133-annular slot, the 14-annular limiting block, the 15-turntable, the 2-lower die component, the 21-base, the 211-cavity, the 212-jack, the 213-moving slot, the 22-replacement die holder, the 221-cavity, the 222-insert rod, the 223-annular groove, the 23-limiting component, the 231-cylinder, the 232-push plate, the 233-insert, the 234-support plate and the 3-fastening bolt are arranged.

Detailed Description

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, as well as, for example, fixedly coupled, detachably coupled, or integrally coupled, unless otherwise specifically indicated and defined. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The technical scheme of the utility model is further described below with reference to the examples and the accompanying figures 1-4.

Example 1

A shell stretching die comprising: the stamping assembly 1 comprises a stamping driving mechanism 11, a stamping rod 12 and a replacement stamping head 13, the stamping rod 12 is arranged at the lower end of the stamping driving mechanism 11, a sliding groove 121 is formed in the stamping rod 12 in a surrounding mode, a rotary table 15 is arranged at the upper end of the stamping rod 12 in a rotating mode, an annular limiting block 14 is arranged at the lower end of the rotary table 15, the replacement stamping head 13 is slidably sleeved on the outer side of the stamping rod 12, a sliding block 131 which is spliced with the sliding groove 121 is arranged on the replacement stamping head 13, an annular connecting block 132 is arranged at the upper end of the replacement stamping head 13, an annular slot 133 for the annular limiting block 14 to be spliced is formed in the annular connecting block 132, the lower die assembly 2 comprises a base 21, a replacement die holder 22 and a limiting assembly 23, a cavity 211 is formed in the base 21, the replacement die holder 22 is arranged in the cavity 211, a cavity 221 is formed in the replacement die holder 22, four groups of limiting assemblies are annularly arranged in the limiting assembly 23, the limiting assembly 23 comprises a cylinder 231 and a push plate 232, and the push plate 232 is fixed on one side of the cylinder 231 and is in contact with the end face of the replacement die holder 22.

As shown in fig. 1 to 4, the use principle of the present utility model is as follows: installing a replacement die holder 22 and a replacement punch 13 with proper sizes, specifically, sliding a sliding block 131 of the replacement punch 13 into a sliding groove 121 of a punch rod 12 to limit the rotation of the replacement punch 13, and then rotating a rotary table 15 to enable an annular limiting block 14 at the lower end of the rotary table to be inserted into an annular slot 133 in an annular connecting block 132 on the replacement punch 13, and fixing the replacement punch 13 to enable the replacement punch 13 not to fall off; the lower replacement die holder 22 is placed into the cavity 211 of the base 21 and then is matched with the push plate 232 through the air cylinder 231, the replacement die holder 22 is fixed in four directions, and then the sheet is placed at the upper end of the base 21 and then is driven by the stamping driving mechanism 11 to be stamped into the cavity 221 for forming through the replacement punch 13.

According to the part diameter that needs processing, the replacement drift on the direct replacement punch rod of equidimension not need not to dismantle the replacement with whole punch head subassembly to the replacement die holder of lower extreme is tight fixed through spacing subassembly clamp, conveniently changes, and then has improved change efficiency, and reduction in production cost.

As a further preferred embodiment, three groups of annular limiting blocks 14 are arranged at intervals, three groups of fastening bolts 3 are arranged at the upper end of the turntable 15 at intervals, the fastening bolts 3 are correspondingly connected with the annular limiting blocks 14 in a threaded manner, and the lower ends of the fastening bolts 3 are connected with an annular connecting block 132. The annular limiting block 14 is further fixedly connected with the annular connecting block 132 through the fastening bolt 3, so that the overall connection stability is improved.

As a further preferred embodiment, the bottom surface of the cavity 211 is provided with insertion holes 212 at intervals, and the bottom of the replacement die holder 22 is provided with insertion rods 222 matched with the insertion holes 212. By the cooperation of the insert rod 222 and the insertion hole 212, the replacement die holder 22 is more conveniently installed in the cavity 211, and the installation centering of the replacement die holder 22 is improved.

As a further preferred embodiment, the middle part of the replacement die holder 22 is provided with an annular groove 223, and the middle part of the push plate 232 is provided with an inserting piece 233 matched with the annular groove 223. The insert 233 at the front end of the push plate 232 can be inserted into the annular groove 223 to improve the limit of the replacement die holder 22 in the height direction.

As a further preferred embodiment, the top of the push plate 232 is provided with a supporting plate 234, and the upper end of the base 21 is provided with a moving slot 213 for sliding the supporting plate 234. The placed sheet can be supported by a top support plate 234.

The foregoing describes in detail preferred embodiments of the present utility model. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the utility model by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.

Claims

1. A shell stretching die, comprising: the stamping assembly comprises a stamping driving mechanism, a stamping rod and a replacement punch, the stamping rod is arranged at the lower end of the stamping driving mechanism, a chute is arranged on the stamping rod in a surrounding mode, a rotary table is arranged at the upper end of the stamping rod in a rotating mode, an annular limiting block is arranged at the lower end of the rotary table, the outer side of the stamping rod is arranged on the sliding sleeve of the replacement punch, a sliding block inserted into the chute is arranged on the replacement punch, an annular connecting block is arranged at the upper end of the replacement punch, an annular slot for inserting the annular limiting block is arranged in the annular connecting block, the lower die assembly comprises a base, a replacement die holder and a limiting assembly, a cavity is arranged inside the base, the replacement die holder is arranged in the cavity, cavities are formed in the replacement die holder, four groups of limiting assembly rings are arranged, the limiting assembly comprises a cylinder and a pushing plate, and the pushing plate is fixed on one side of the cylinder and is in contact with the end face of the replacement die holder.

2. The shell stretching die of claim 1, wherein three groups of annular limiting blocks are arranged at intervals, three groups of fastening bolts are arranged at the upper end of the turntable at intervals, the fastening bolts are correspondingly connected with the annular limiting blocks in a threaded mode, and the lower ends of the fastening bolts are connected with the annular connecting blocks in a threaded mode.

3. The shell stretching die of claim 1, wherein jacks are arranged at intervals on the bottom surface of the cavity, and inserting rods matched with the jacks are arranged at the bottom of the replacement die holder.

4. The shell stretching die of claim 1, wherein the middle part of the replacement die holder is provided with an annular groove, and the middle part of the push plate is provided with an inserting sheet matched with the annular groove.

5. The shell stretching die according to claim 1, wherein the top of the push plate is provided with a support plate, and the upper end of the base is provided with a moving groove for sliding the support plate.