CN219335618U

CN219335618U - Large-pipe-diameter spherical expansion forming die

Info

Publication number: CN219335618U
Application number: CN202320319780.0U
Authority: CN
Inventors: 陈新明
Original assignee: Changchun Zhile Machinery Manufacturing Co ltd
Current assignee: Changchun Zhile Machinery Manufacturing Co ltd
Priority date: 2023-02-27
Filing date: 2023-02-27
Publication date: 2023-07-14
Anticipated expiration: 2033-02-27

Abstract

The utility model discloses a large-pipe-diameter spherical expansion forming die, and relates to the technical field of stainless steel pipe processing. Comprising the following steps: the steel pipe die is used for fixing a steel pipe to be processed, and the internal cavity structure of the steel pipe die corresponds to the processed steel pipe structure; the male die assembly is pushed into the steel pipe to be processed to perform expansion processing forming; and the pushing-in driving mechanism is used for driving the male die assembly to move so as to enable the male die assembly to be in a bulge forming state of pushing in the steel pipe to be processed and a demolding state of separating from the steel pipe. The tool can enable spherical surface forming and expansion forming of products to be combined into one-order implementation, the oil cylinder is utilized to push the male die component, the male die of the expansion contacts the pipe fitting to complete expansion, the male die component is pushed to move forwards along with the oil cylinder, the spherical surface male die contacts the pipe fitting to complete spherical surface forming, namely, the expansion is firstly carried out and then the spherical surface is formed during forming, the coaxiality of the spherical surface forming and the expansion of the products can be greatly improved through the structure, and meanwhile, one set of die cost and labor cost are saved.

Description

Large-pipe-diameter spherical expansion forming die

Technical Field

The utility model relates to the technical field of stainless steel tube processing, in particular to a large-diameter spherical expansion forming die.

Background

In the existing stainless steel pipe, products with large diameters and complicated molding are generally finished in a sequence, an expanding port is formed in one sequence, and spherical surface is shaped in one sequence.

In the prior art, the following defects exist in the stainless steel tube by orderly processing products: 1. the cost of sorting processing and development is high, and the proportion of occupied project expenses is large; 2. the multi-sequence forming equipment has low utilization rate, high manufacturing cost and long beat; 3. the cost of the mould spare parts is high, the product precision is difficult to ensure, the yield is low, and in order to improve the problems, a large-pipe-diameter spherical expansion forming mould needs to be designed.

Disclosure of Invention

The utility model aims to solve the technical problems and provides a large-pipe-diameter spherical expansion forming die.

In order to solve the technical problems, the technical scheme of the utility model is as follows:

big pipe diameter sphere mouth forming die that expands includes:

the steel pipe die is used for fixing a steel pipe to be processed, and the internal cavity structure of the steel pipe die corresponds to the processed steel pipe structure;

the male die assembly is pushed into the steel pipe to be processed to perform expansion processing forming;

and the pushing-in driving mechanism is used for driving the male die assembly to move so as to enable the male die assembly to be in a bulge forming state of pushing in the steel pipe to be processed and a demolding state of separating from the steel pipe.

Preferably, the steel pipe die further comprises a lower die plate, and the steel pipe die, the male die assembly and the pushing driving mechanism are all arranged on the lower die plate.

Preferably, the steel pipe die comprises an upper die plate, an upper die cavity and a lower die cavity, wherein the lower die cavity is arranged on the lower die plate, the upper die cavity is arranged on the upper die plate, the upper die cavity and the lower die cavity are arranged oppositely, and a steel pipe to be processed is clamped between the upper die cavity and the lower die cavity;

and a movable guide post is arranged between the upper die plate and the lower die plate.

Preferably, the internal space of the upper cavity and the lower cavity after the die assembly corresponds to the processed steel pipe structure.

Preferably, a base plate is arranged above the upper template, and the base plate is connected with the upper template through a cushion block.

Preferably, the male die assembly comprises a connecting shaft, and an expanding mouth male die and a spherical male die which are coaxially arranged at two ends of the connecting shaft.

Preferably, the pushing driving mechanism comprises an oil cylinder arranged on the lower die plate, and the lower die plate is provided with an oil cylinder vertical plate and an oil cylinder flange arranged on the oil cylinder vertical plate and used for installing the oil cylinder.

Preferably, a guide seat is arranged on the lower template, a guide shaft is arranged on the guide seat, and the guide shaft penetrates through the guide seat and slides in the guide seat;

a sensor mounting plate is arranged on one side of the guide seat, and a proximity switch is arranged on the sensor mounting plate;

one end of the guide shaft is coaxially connected with the connecting shaft, a supporting block is arranged at the other end of the guide shaft to support the guide shaft to move, and the supporting block is connected with the telescopic end of the oil cylinder.

The utility model has the following beneficial effects:

the large-pipe-diameter spherical expansion forming die disclosed by the utility model can combine spherical forming and expansion forming of products into a sequence, the expansion male die is pushed by the oil cylinder to contact the pipe fitting to complete expansion, and the spherical male die contacts the pipe fitting to complete spherical forming along with the push of the male die assembly by the oil cylinder, namely, the expansion is carried out firstly and then the spherical forming is carried out during forming, so that the structure can greatly improve the coaxiality of the spherical forming and the expansion of the products, and meanwhile, the cost of one die and the labor cost are saved.

Drawings

The utility model is described in further detail below with reference to the drawings and the detailed description.

FIG. 1 is a schematic structural view of a large-pipe-diameter spherical expansion forming die of the utility model;

fig. 2 is a schematic diagram of the die assembly of the upper cavity and the lower cavity of the large-pipe-diameter spherical expansion forming die.

Reference numerals in the drawings denote:

1. a lower template; 2. an upper template; 3. an upper cavity; 4. a lower cavity; 5. moving the guide post; 6. a backing plate; 7. a cushion block; 8. a connecting shaft; 9. a male die with an expanding port; 10. a spherical male die; 11. an oil cylinder; 12. a cylinder vertical plate; 13. an oil cylinder flange; 14. a guide seat; 15. a guide shaft; 16. a sensor mounting plate; 17. a proximity switch; 18. and a supporting block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-2, a large-pipe-diameter spherical expansion forming die comprises:

and the pushing-in driving mechanism is used for driving the male die assembly to move so as to enable the male die assembly to be pushed into a bulge forming state in the steel pipe to be processed and to be separated from a demoulding state of the steel pipe.

In summary, the tool can combine the spherical surface forming and the bulge forming of the product into a sequence, and push the male die component by utilizing the pushing driving mechanism such as the oil cylinder to enable the bulge male die part to contact the pipe fitting to complete the bulge, and then the spherical surface male die part contacts the pipe fitting to complete the spherical surface forming along with the push of the male die component of the oil cylinder to continuously move forward, namely, the bulge is firstly carried out and then the spherical surface forming is carried out during the forming, so that the structure can greatly improve the coaxiality of the spherical surface forming and the bulge of the product, and simultaneously save one set of die cost and labor cost.

Further, the steel pipe die comprises a lower die plate 1, and the steel pipe die, the male die assembly and the pushing driving mechanism are all arranged on the lower die plate 1.

Further, the steel pipe die comprises an upper die plate 2, an upper die cavity 3 and a lower die cavity 4, wherein the lower die cavity 4 is arranged on the lower die plate 1, the upper die cavity 3 is arranged on the upper die plate 2, the upper die cavity 3 and the lower die cavity 4 are arranged oppositely, and a steel pipe to be processed is clamped between the upper die cavity 3 and the lower die cavity 4;

a movable guide post 5 is arranged between the upper die plate 2 and the lower die plate 1 and is used for guiding the relative movement direction between the upper die plate 2 and the lower die plate 1.

Further, the inner space after the upper cavity 3 and the lower cavity 4 are clamped corresponds to the machined steel pipe structure, so that the shape of the machined steel pipe can be matched while the fixed steel pipe to be machined is clamped.

Further, a cushion plate 6 is arranged above the upper die plate 2, the cushion plate 6 is connected with the upper die plate 2 through a cushion block 7, namely, the upper die plate 2 is supported through the cushion plate 6 and the cushion block 7, and hydraulic equipment is connected through the cushion plate 6 to drive the upper die cavity 3 to ascend and descend, so that the die opening and closing is completed.

Further, the male die assembly comprises a connecting shaft 8, and an expanding mouth male die 9 and a spherical male die 10 which are coaxially arranged at two ends of the connecting shaft 8, wherein the expanding mouth male die 9 on the connecting shaft 8 is used for processing an expanding mouth on a steel pipe, the spherical male die 10 is used for processing a spherical surface immediately after finishing processing the expanding mouth, the expanding mouth and the spherical surface belong to one-step forming, and other equipment and secondary working procedures are not used.

Further, the pushing driving mechanism comprises an oil cylinder 11 arranged on the lower template 1, an oil cylinder vertical plate 12 and an oil cylinder flange 13 arranged on the oil cylinder vertical plate 12 and used for installing the oil cylinder 11, and the oil cylinder 11 is stably fixed on the lower template 1 through the oil cylinder vertical plate 12 and the oil cylinder flange 13.

Further, the lower template 1 is provided with a guide seat 14, the guide seat 14 is provided with a guide shaft 15, and the guide shaft 15 is penetrated into the guide seat 14 and slides in the guide seat 14, namely slides in the guide seat 14 through the guide shaft 15 so as to guide the moving direction of the connecting shaft 8 and ensure that the connecting shaft 8 moves stably;

a sensor mounting plate 16 is arranged on one side of the guide seat 14, a proximity switch 17 is arranged on the sensor mounting plate 16, and a corresponding expansion punch 9 and a corresponding spherical punch 10 are arranged on the connecting shaft 8 so as to carry out two processing procedures, so that two groups of proximity switches 17 are correspondingly required to be arranged;

one end of the guide shaft 15 is coaxially connected with the connecting shaft 8, the other end of the guide shaft is provided with a supporting block 18 for supporting the guide shaft 15 to move, the supporting block 18 is connected with the telescopic end of the oil cylinder 11, and the movement of the supporting block 18 is synchronous with the connecting shaft 8 and the guide shaft 15, so that the movement of the supporting block 18 corresponds to the working positions of the expanding mouth male die 9 and the spherical male die 10, and therefore, in order to cooperate with the proximity switch 17, the supporting block 18 is a metal block which can enable the proximity switch 17 to sense, or the supporting block 18 is provided with a corresponding metal block.

Specifically, two positions corresponding to the operation of the expanding mouth punch 9 and the spherical punch 10, namely after the expansion mouth punch 9 is processed and molded, a group of the contact switches 17 sense the metal blocks and trigger the switches, and can preset pause or change of corresponding rows of driving speeds and the like, processing with higher quality, then the spherical male die 10 reaches the working position, and a second group of contact switches 17 are started to make corresponding program changes, for example, the oil cylinder 11 drives the expanding male die 9 and the spherical male die 10 to return to the initial positions or open the die.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims

1. Big pipe diameter sphere mouth forming die that expands, its characterized in that includes:

2. The large-pipe-diameter spherical expansion forming die according to claim 1, further comprising a lower die plate (1), wherein the steel pipe die, the male die assembly and the pushing driving mechanism are all arranged on the lower die plate (1).

3. The large-pipe-diameter spherical expansion forming die according to claim 2, wherein the steel pipe die comprises an upper die plate (2), an upper die cavity (3) and a lower die cavity (4), the lower die cavity (4) is arranged on the lower die plate (1), the upper die cavity (3) is arranged on the upper die plate (2), the upper die cavity (3) is arranged opposite to the lower die cavity (4), and a steel pipe to be processed is clamped between the upper die cavity (3) and the lower die cavity (4);

a movable guide column (5) is arranged between the upper die plate (2) and the lower die plate (1).

4. A large pipe diameter spherical expansion forming die according to claim 3, wherein the inner space of the upper die cavity (3) and the lower die cavity (4) after die assembly corresponds to the processed steel pipe structure.

5. A large-pipe-diameter spherical expansion forming die according to claim 3, wherein a base plate (6) is arranged above the upper die plate (2), and the base plate (6) is connected with the upper die plate (2) through a cushion block (7).

6. A large pipe diameter spherical expansion forming die according to claim 3, wherein the male die assembly comprises a connecting shaft (8), and expansion male dies (9) and spherical male dies (10) coaxially arranged at two ends of the connecting shaft (8).

7. The large-pipe-diameter spherical expansion forming die according to claim 6, wherein the pushing-in driving mechanism comprises an oil cylinder (11) arranged on the lower die plate (1), an oil cylinder vertical plate (12) and an oil cylinder flange (13) arranged on the oil cylinder vertical plate (12) for installing the oil cylinder (11) are arranged on the lower die plate (1).

8. The large-pipe-diameter spherical expansion forming die according to claim 7, wherein a guide seat (14) is arranged on the lower die plate (1), a guide shaft (15) is arranged on the guide seat (14), and the guide shaft (15) penetrates through the guide seat (14) and slides in the guide seat (14);

a sensor mounting plate (16) is arranged on one side of the guide seat (14), and a proximity switch (17) is arranged on the sensor mounting plate (16);

one end of the guide shaft (15) is coaxially connected with the connecting shaft (8), a supporting block (18) is arranged at the other end of the guide shaft to support the guide shaft (15) to move, and the supporting block (18) is connected with the telescopic end of the oil cylinder (11).