CN216804275U

CN216804275U - High-precision spiral rapid forming die

Info

Publication number: CN216804275U
Application number: CN202220244083.9U
Authority: CN
Inventors: 罗焱敏
Original assignee: Guangzhou Seagull Housing Industry Co ltd
Current assignee: Guangzhou Seagull Housing Industry Co ltd
Priority date: 2022-01-29
Filing date: 2022-01-29
Publication date: 2022-06-24
Anticipated expiration: 2032-01-29

Abstract

The utility model discloses a high-precision spiral type rapid forming die which comprises an upper die, a lower die, a core and a core-pulling assembly for die-casting a bent pipe, and is characterized in that the core-pulling assembly comprises a core-pulling main shaft and a sliding block, one end of the core-pulling main shaft is vertically and fixedly arranged in the upper die body, the other end of the core-pulling main shaft is vertically inserted into the lower die body, external threads are arranged on the surface of the core-pulling main shaft, a fan-shaped groove is arranged on one surface of the lower die, which is opposite to the upper die, the fan-shaped groove takes the core-pulling main shaft as an axis, the sliding block is arranged in the fan-shaped groove, one end of the sliding block is provided with a sliding block connecting part connected with the core-pulling main shaft, the center of the sliding block connecting part is provided with a threaded hole matched with the external threads, the sliding block is connected with the core-pulling main shaft through the threaded hole, and the sliding block is connected with the core. According to the utility model, the core-pulling main shaft is utilized to drive the sliding block to rotate through gear transmission, so that the core-pulling forming can be rapidly carried out, the production efficiency is effectively improved, the structure is simple, the space of the mold is effectively saved, and the problem of limitation in the mold is reduced.

Description

High-precision spiral rapid forming die

Technical Field

The utility model relates to the technical field of dies. More specifically, the utility model relates to a high-precision spiral rapid forming die.

Background

Because the die forming part has the advantages of high production efficiency, low manufacturing cost and the like, the part with the die forming structure can be seen everywhere in daily life. Particularly, as the molded parts of the die casting mold have the advantages of good appearance quality, high production efficiency, low manufacturing cost and the like, the die casting mold is more and more favored by consumers, and plays an important role in the production of a plurality of products such as bathroom products, notebook computers, mobile phones, automobiles and the like. However, the common die-casting mold is limited by the internal structure of the part, and the die-casting process of the part with a complex inner cavity may not be realized.

A bending and drawing die is usually used during production of a workpiece with a bending structure, a slide block is usually pulled out by an inclined guide pillar when a common bending and drawing die is opened, the slide block moves in the side direction to finish side core drawing, the slide block is guided into the inclined guide pillar to return when the die is closed, and the guide effect of the slide block is finished by the inclined guide pillar. But the core-pulling structure of the inclined guide post in the die is complex in connection and occupies the internal space of the die, and the guide of the inclined guide post is limited by the internal structure of a part to a certain extent.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high-precision spiral type rapid forming die which can effectively solve the problems.

In order to achieve the purposes and other advantages, the utility model provides a high-precision spiral type rapid forming die, which comprises an upper die, a lower die, a core and a core-pulling assembly for die-casting a bent pipe, wherein the core-pulling assembly comprises a core-pulling main shaft and a sliding block, one end of the core-pulling main shaft is vertically and fixedly arranged in an upper die body, the other end of the core-pulling main shaft is vertically inserted into a lower die body, the surface of the core-pulling main shaft is provided with an external thread, one surface of the lower die, which is opposite to the upper die, is provided with a fan-shaped groove, the fan-shaped groove takes the core-pulling main shaft as an axis, the sliding block is arranged in the fan-shaped groove, one end of the sliding block is provided with a sliding block connecting part connected with the core-pulling main shaft, the center of the sliding block connecting part is provided with a threaded hole matched with the external thread, and the sliding block connecting part is in threaded connection with the core-pulling main shaft through the threaded hole, the sliding block is connected with the core, and when the upper die drives the core-pulling main shaft to be pulled out of the lower die, the sliding block is driven by the movement of the core-pulling main shaft to rotate by taking the core-pulling main shaft as a circle center to pull out the core.

It is preferable that: the upper die comprises an upper die frame and an upper die core embedded on the upper die frame body, and an upper die cavity is arranged on the upper die core; the lower die comprises a lower die frame and a lower die core embedded in the lower die frame body, and a lower die cavity is formed in the lower die core;

the lower mold core is matched with the upper mold core, the lower mold cavity is matched with the upper mold cavity, and the upper mold cavity and the lower mold cavity form a hollow mold cavity for die-casting a workpiece during mold closing.

It is preferable that: the mold core is arranged in the mold cavity and comprises a first mold core of a straight line section and a second mold core of a curve section abutted to the first mold core, the tail end of the second mold core is connected with the sliding block, and the mold cavity is communicated with the fan-shaped groove so that the sliding block drives the second mold core to be drawn out of the mold cavity.

It is preferable that: the second core with the one end that the slider is connected is equipped with outside convex embedding piece, be equipped with on the slider with the embedding piece assorted embedding groove that inwards caves in, the embedding piece inserts in the embedding groove, so that the second core with the slider is fixed.

It is preferable that: and the lower die is provided with a grouting port communicated with the lower die cavity.

It is preferable that: an arc-shaped guide rail matched with the arc of the fan-shaped groove is arranged in the fan-shaped groove, and the sliding block is connected with the arc-shaped guide rail in a sliding mode.

It is preferable that: the core-pulling main shaft penetrates through the upper die, the top of the core-pulling main shaft, which is located at one end of the upper die, is connected with a fixing sleeve, and the fixing sleeve is fixedly installed in a fixing groove formed in the surface of the upper die.

It is preferable that: the lower die is characterized in that a vertical guide pillar is arranged on one surface of the lower die, which is opposite to the upper die, a fixing hole corresponding to the guide pillar is arranged on the upper die, and a guide sleeve is arranged in the fixing hole.

The utility model at least comprises the following beneficial effects:

the core-pulling main shaft of the high-precision spiral type rapid forming die is designed into a spiral structure surface, the surface of the core-pulling main shaft is provided with external threads, the sliding block is provided with a sliding block connecting part, the center of the sliding block connecting part is provided with a threaded hole matched with the external threads on the surface of the core-pulling main shaft, the sliding block connecting part is connected to the core-pulling main shaft through the threaded hole in a threaded manner, when the die is opened, the upper die drives the core-pulling main shaft to do linear motion to be separated from the lower die in the process of separating the upper die from the lower die, and the core-pulling main shaft drives the sliding block to rotate by utilizing the transmission action between the external threads on the surface of the core-pulling main shaft and the spiral teeth of the threads of the threaded hole on the sliding block, so that the guiding core-pulling forming of the sliding block is realized. This structure utilizes the gear drive principle, accomplishes slider guided motion through the main shaft of loosing core, need not to set up oblique guide pillar, effectively saves the mould space to reduce the inside limited problem of mould that the guide of oblique guide pillar brought, increased the manufacturability of complicated work piece die casting technology, its simple structure can effectively improve the shaping rate of loosing core simultaneously, promotes the production efficiency of work piece.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.

Drawings

FIG. 1 is a schematic structural view of a high-precision spiral rapid prototyping mold of the present invention.

FIG. 2 is a schematic sectional view of a high-precision spiral rapid prototyping mold of the present invention.

FIG. 3 is a schematic view of the lower die structure of the high-precision spiral rapid prototyping die of the present invention.

FIG. 4 is a schematic structural view of a core-pulling spindle of the high-precision spiral rapid prototyping mold of the utility model.

FIG. 5 is a schematic view of a slider structure of the high-precision spiral rapid prototyping mold of the present invention.

FIG. 6 is a schematic view A of the high-precision spiral rapid prototyping mold of the present invention.

Description of reference numerals: 1-upper mould; 2-lower mould; 3-a mold core; 4-a core-pulling main shaft; 5-a slide block; 6-fan-shaped grooves; 7-a slider connection; 8-a threaded hole; 9-a mold cavity; 10-grouting port; 11-an arc-shaped guide rail; 12-fixing the sleeve; 13-a fixed groove; 14-guide posts; 15-guide sleeve; 16-a first opening; 17-a second opening; 101-mounting a mold frame; 102-upper mold core; 201-lower mould frame; 202-lower mold core; 301-a first core; 302-a second core; 501-embedded groove; 901-upper mould cavity; 902-lower mold cavity.

Detailed Description

The present invention is further described in detail below with reference to examples so that those skilled in the art can practice the utility model with reference to the description.

It should be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other components or groups thereof.

In the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of description, and do not indicate or imply that the device or assembly referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1-6, the present invention provides an embodiment of a high-precision spiral type rapid forming mold, which includes an upper mold 1, a lower mold 2, a mold core 3 and a core pulling assembly for die-casting a bent pipe, wherein the upper mold 1 is matched with the lower mold 2, the upper mold 1 is detachably connected with the lower mold 2, the core pulling assembly includes a core pulling main shaft 4 and a slider 5, one end of the core pulling main shaft 4 is vertically fixed in the upper mold body, the other end of the core pulling main shaft 4 is vertically inserted into the lower mold 2 body, an external thread is provided on the surface of the core pulling main shaft 4, a fan-shaped groove 6 is provided on the surface of the lower mold 2 opposite to the upper mold 1, the fan-shaped groove 6 takes the core pulling main shaft 4 as an axis, the slider 5 is installed in the fan-shaped groove 6, the slider 5 rotates with the core pulling main shaft 4 as an axis and moves within the range of the fan-shaped groove 6, in order to inject the sliding range of the slider 5, one end of the slider 5 is provided with a slider connecting part 7 connected with the core-pulling main shaft 4, the center of the slider connecting part 7 is provided with a threaded hole 8 matched with the external thread, the slider connecting part 7 is in threaded connection with the core-pulling main shaft 4 through the threaded hole 8, the core-pulling main shaft 4 drives the slider 5 to rotate by utilizing the transmission action between the external thread on the surface of the core-pulling main shaft 4 and the helical tooth of the thread of the threaded hole 8 on the slider 5, the slider 5 is connected with the core 3 so that the slider 5 drives the core 3 to move, and in the process that the upper die 1 drives the core-pulling main shaft 4 to pull out the lower die 2, the slider 5 is driven by the movement of the core-pulling main shaft 4 to rotate by taking the core-pulling main shaft 4 as the center of a circle to pull out the core 3.

According to the technical scheme, when the mold is opened, the upper mold 1 slowly moves along the axis direction of the core-pulling main shaft 4 to be separated from the lower mold 2, in the moving process of the upper mold 1, the upper mold 1 drives the core-pulling main shaft 4 fixed on the upper mold 1 to do linear motion along the axis direction of the core-pulling main shaft 4, in the moving process of the core-pulling main shaft 4, the sliding block 5 connected to the core-pulling main shaft 4 rotates along the spiral direction of the external thread on the surface of the core-pulling main shaft 4, so that the sliding block 5 is driven to rotate by the movement of the core-pulling main shaft 4, the sliding block 5 slides in the fan-shaped groove 6 and drives the mold core 3 to move together, and the elbow core pulling is realized. The core-pulling main shaft 4 of the high-precision spiral type rapid forming die is designed into a spiral structure surface, and the core-pulling main shaft 4 moves to drive the sliding block 5 to rotate by utilizing the gear transmission action between the external threads on the surface of the core-pulling main shaft 4 and the threads of the threaded hole 8 on the sliding block 5, so that the rotation guide core-pulling forming of the sliding block 5 is realized.

In another technical scheme, the upper die 1 comprises an upper die frame 101 and an upper die core 102 embedded on the body of the upper die frame 101, and an upper die cavity 901 is arranged on the upper die core 102; the lower die 2 comprises a lower die frame 201 and a lower die core 202 embedded in the lower die frame 201, and a lower die cavity 902 is arranged on the lower die core 202;

the lower mold core 202 is matched with the upper mold core 201, the lower mold cavity 902 is matched with the upper mold cavity 901, and when the mold is closed, the upper mold cavity 901 and the lower mold cavity 902 form a hollow mold cavity 9.

In the technical scheme, the upper die core 102 is detachably connected with the upper die frame 101 through screws, and the lower die core 202 is detachably connected with the lower die frame 201 through screws, so that the connecting structures of the die are easier to assemble, disassemble and replace; when the dies are closed, a hollow die cavity 9 is formed between the upper die cavity 901 and the lower die cavity 902 as a molding space of the die-casting workpiece.

In another technical solution, the core 3 is disposed in the mold cavity 9, the core 3 includes a first core 301 of a straight line segment and a second core 302 of a curved line segment abutting against the first core 301, a terminal of the second core 302 is connected to the slider 5, and the mold cavity 9 is communicated with the fan-shaped groove 6, so that the slider 5 drives the second core 302 to be extracted from the mold cavity 9.

In the above technical solution, the lower mold cavity 902 is provided with a first opening 16 communicated with the outside and a second opening 17 communicated with the fan-shaped groove 6; when the die is closed, one end of the first core 301 is inserted into the die cavity 9 from the first opening 16, the other end of the first core 301 is closed with the first opening 16, one end of the second core 302 is inserted into the die cavity 9 from the second opening 17 and is abutted against the first core 301, the other end of the second core 302 is closed with the second opening 17, so that the die cavity 9 forms a closed space, and a space of a die-casting die is formed between the die cavity 9 and the core 3; one end of the second core 302, which is located at the second opening 17, is connected with the slider 5, when the mold is opened, the first core 301 is drawn out from the first opening 16, and the second core 302 is led out from the second opening 17 along with the slider 5 under the action of the core-pulling spindle 4 to complete core pulling.

In another technical scheme, the second core 302 with the one end that slider 5 is connected is equipped with outside convex embedded piece, be equipped with on slider 5 with the embedded piece assorted embedding groove 501 of inwards caving, the embedded piece inserts fixed connection in the embedding groove 501, so that second core 302 with slider 5 is fixed firm, makes the slider in-process of loosing core, and second core 302 is difficult for droing.

In another technical scheme, a grouting port 10 communicated with the lower mold cavity 902 is arranged on the lower mold 2, and slurry for manufacturing the workpiece is injected into a gap between the mold cavity 9 and the mold core 3 from the grouting port 10 to form a workpiece blank with a hollow structure.

In another technical scheme, be equipped with two on the bottom surface of fan-shaped recess 6 with the 6 radian of fan-shaped recess matches arc guide rail 11, slider 5 with arc guide rail 11 sliding connection, arc guide rail 11 is used for guiding slider 5 along the motion of fan-shaped recess radian direction.

In another technical scheme, the core-pulling main shaft 4 penetrates through the upper die 1, the top of the core-pulling main shaft 4, which is located at one end of the upper die 1, is connected with a fixing sleeve 12, and the fixing sleeve 12 is fixedly installed in a fixing groove 13 formed in the surface of the upper die 1. The fixing sleeve 12 is used for positioning the core-pulling main shaft 4 so as to ensure that the spiral direction of the external thread of the core-pulling main shaft 4 is correctly installed.

In another technical scheme, four corners of one surface of the lower die 2 opposite to the upper die 1 are provided with vertical guide posts 14, the upper die 1 is provided with fixing holes corresponding to the guide posts 14, and guide sleeves 15 are arranged in the fixing holes. When the upper die 1 and the lower die 2 are matched, the guide post 14 of the lower die 2 is aligned to the position of the fixing hole of the upper die 1, the guide post 14 is inserted into the guide sleeve 15, the upper die 1 and the lower die 2 are accurately matched, and the guide post 14 and the guide sleeve 15 are used for guiding the upper die 1 and the lower die 2 to be matched in the correct position.

While embodiments of the utility model have been described above, it is not intended to be limited to the details shown, described and illustrated herein, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed, and to such extent that such modifications are readily available to those skilled in the art, and it is not intended to be limited to the details shown and described herein without departing from the general concept as defined by the appended claims and their equivalents.

Claims

1. The high-precision spiral type rapid forming die comprises an upper die, a lower die, a core and a core-pulling assembly for die-casting a bent pipe, and is characterized in that the core-pulling assembly comprises a core-pulling main shaft and a sliding block, one end of the core-pulling main shaft is vertically and fixedly arranged in an upper die body, the other end of the core-pulling main shaft is vertically inserted into a lower die body, an external thread is arranged on the surface of the core-pulling main shaft, a fan-shaped groove is arranged on one surface of the lower die opposite to the upper die, the fan-shaped groove takes the core-pulling main shaft as an axis, the sliding block is arranged in the fan-shaped groove, one end of the sliding block is provided with a sliding block connecting part connected with the core-pulling main shaft, a threaded hole matched with the external thread is arranged in the center of the sliding block connecting part, the sliding block connecting part is in threaded connection with the core-pulling main shaft through the threaded hole, the sliding block is connected with the core, and in the process that the upper die drives the core-pulling main shaft to be pulled out of the lower die, the movement of the core-pulling main shaft drives the sliding block to rotate by taking the core-pulling main shaft as a circle center to pull out the core.

2. The high-precision spiral rapid prototyping die of claim 1, wherein said upper die comprises an upper die frame and an upper die core embedded in the upper die frame body, said upper die core having an upper die cavity; the lower die comprises a lower die frame and a lower die core embedded in the lower die frame body, and a lower die cavity is formed in the lower die core;

3. The high-precision spiral rapid prototyping die of claim 2 wherein said core is disposed within said cavity, said core comprising a first core having a straight section and a second core having a curved section abutting said first core, said second core having a distal end connected to said slide, said cavity communicating with said scalloped groove such that said slide causes said second core to be extracted from said cavity.

4. A high-precision spiral rapid prototyping die as claimed in claim 3, wherein an end of said second core connected to said slide block is provided with an outwardly protruding embedding block, said slide block is provided with an inwardly recessed embedding groove matching said embedding block, said embedding block is inserted into said embedding groove to fix said second core to said slide block.

5. The high-precision spiral rapid prototyping die of claim 4, wherein the lower die is provided with a grouting opening communicated with the lower die cavity.

6. The high-precision spiral rapid prototyping die of claim 1, wherein an arc-shaped guide rail matching with the arc of the fan-shaped groove is arranged in the fan-shaped groove, and the sliding block is connected with the arc-shaped guide rail in a sliding manner.

7. The high-precision spiral rapid prototyping die of claim 1, wherein said core-pulling main shaft penetrates through said upper die, a fixing sleeve is connected to the top of said core-pulling main shaft at one end of said upper die, and said fixing sleeve is fixedly mounted in a fixing groove formed on the surface of said upper die.

8. The high-precision spiral rapid prototyping die of claim 1, wherein a vertical guide post is provided on a surface of said lower die opposite to said upper die, a fixing hole corresponding to said guide post is provided on said upper die, and a guide sleeve is provided in said fixing hole.