CN219766785U

CN219766785U - Finishing lower die structure for powder metallurgy helical gear

Info

Publication number: CN219766785U
Application number: CN202321084938.7U
Authority: CN
Inventors: 袁天赐; 徐梦辰
Original assignee: Yangzhou Hualun Cnc Machinery Co ltd
Current assignee: Yangzhou Hualun Cnc Machinery Co ltd
Priority date: 2023-05-08
Filing date: 2023-05-08
Publication date: 2023-09-29
Anticipated expiration: 2033-05-08

Abstract

The utility model discloses a finishing undershoot die structure for a powder metallurgy helical gear, which comprises a fixed table, wherein a fixed component is arranged above the fixed table, a lower punching component is connected above the fixed component, the fixed component arranged on the fixed table can assist in fixing a forming die of a powder metallurgy helical gear material placing box, the real-time stability of the lower punching is improved, the condition that the forming die shakes or deviates is prevented, the follow-up better processing treatment is facilitated, meanwhile, a positioning component arranged on the fixed component can assist in better improvement of the stability of the fixed component, the finishing degree of the powder metallurgy helical gear is facilitated to be improved, and a buffer component arranged on the lower punching component can perform buffer protection on the powder metallurgy helical gear material undershoot forming die, so that the damage of the forming die is reduced.

Description

Finishing lower die structure for powder metallurgy helical gear

Technical Field

The utility model relates to the technical field of stamping dies, in particular to a finishing undershoot die structure for a powder metallurgy helical gear.

Background

Powder metallurgy helical gears are gears manufactured by a powder metallurgy process. The manufacturing process comprises the steps of mixing metal powder with additives, pressing and forming, and finally forming the gear with a certain geometric shape and mechanical properties through the process steps of high-temperature sintering, heat treatment and the like.

The Chinese patent publication No. CN 216370150U discloses a high-precision lower die for powder metallurgy, which belongs to the technical field of powder metallurgy. The utility model provides a die utensil under high-accuracy powder metallurgy, includes the fixing base, and fixing base lower part top surface has set firmly forming die, and forming die inside closely laminates has the preforming, and the preforming inner wall has set firmly the moulding-die, and the expansion groove has been seted up to the moulding-die top surface, and the expansion groove below inner wall has set firmly hard spring, and hard spring upper end has set firmly the joint piece. According to the utility model, the hard spring is designed between the pressing die and the telescopic rod, so that the extrusion time between the pressing die and the forming die can be increased, the forming time of the material is greatly prolonged, and the extrusion forming of the material can be more complete. The utility model not only can make the material better in molding and avoid the residual raw material powder, but also can not increase the time and ensure the production efficiency.

However, the device has a certain defect in actual use, and can better mold materials in use, avoid residual raw material powder, and simultaneously not increase time, and ensure production efficiency, but the finishing undershoot die for the powder metallurgy helical gear can not assist in fixing the molding die in extrusion, so that the shaking or offset of the molding die is easy to occur, the finishing degree of the powder metallurgy helical gear is easy to influence, and the follow-up processing treatment is influenced.

For the problems in the related art, no effective solution has been proposed at present.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a finishing undershoot die structure for a powder metallurgy helical gear, which has the advantages of auxiliary fixing of a forming die and improvement of extrusion stability of the forming die, thereby solving the problems in the prior art.

(II) technical scheme

In order to realize the advantages of auxiliary fixation of the forming die and improvement of the extrusion stability of the forming die, the utility model adopts the following specific technical scheme:

the finishing undershoot die structure for the powder metallurgy helical gear comprises a fixed table, wherein a fixed component is arranged above the fixed table, and a undershoot component is connected above the fixed component;

the surface of lower punching press subassembly is connected with buffer assembly, and the surface of fixed subassembly is kept away from buffer assembly and is provided with locating component.

Further, in order to be convenient for carry out auxiliary fixation to the forming die of powder metallurgy helical gear, fixed subassembly includes the fixing base that sets up with the fixed station top, and the top of fixing base is provided with a plurality of fixed blocks, and the below of a plurality of fixed blocks is connected with the rotation gear through the screw thread dish, and the side of rotation gear is connected with the steering wheel, and the stiff end setting of steering wheel is in the side of fixing base.

Further, in order to reduce the sliding condition when the forming die is fixed, the connecting ends of the fixing blocks are provided with anti-slip pads, the side surfaces of the anti-slip pads are connected with the forming die, and the lower part of the forming die is connected with the upper part of the fixing base.

Further, in order to carry out the real processing of punching press down to forming die's powder metallurgy helical gear material, the punching press subassembly includes the pressure head with forming die inner wall sliding connection down, the top fixedly connected with connecting rod of pressure head, the link of connecting rod is provided with the mount pad, the top of mount pad is provided with electric telescopic handle.

Further, in order to fix electric telescopic handle, improve stability, electric telescopic handle's stiff end is provided with the mount, and the below of mount is connected with the top of fixed station.

Further, in order to carry out buffer protection to forming die when undershoot, buffer assembly includes the restriction piece that sets up with the pressure head surface, and a plurality of buffer holes have been seted up to the mount to the below of restriction piece, and the inner wall of a plurality of buffer holes is provided with the telescopic link, and the flexible end of telescopic link is provided with the buffer board of being connected with forming die top, and the top of buffer board is provided with the buffer spring of being connected with the telescopic link surface, and buffer spring's link and buffer hole inner wall connection.

Further, in order to carry out location processing to the undershoot subassembly, stability when improving the undershoot, the skew condition appears in the prevention, the locating component include with mount pad surface connection's a plurality of locating plates, the buffer board is kept away from to the below of a plurality of locating plates is provided with the reference column, the below of reference column is connected with the positioning tube, the positioning tube is connected with the fixed station top, the side of a plurality of locating plates is provided with the sliding block, sliding end and the mount medial surface sliding connection of sliding block.

(III) beneficial effects

Compared with the prior art, the utility model has the following beneficial effects:

(1) Through the fixed subassembly that sets up at the fixed station, can assist the fixed to powder metallurgy helical gear material and place the forming die of box, improve the real-time stability of punching press down, prevent that forming die from rocking or the skew condition from appearing, be convenient for follow-up better processing, the locating component that simultaneously sets up at the fixed subassembly, can assist the better improvement stability of fixed subassembly, be favorable to improving the finishing degree of powder metallurgy helical gear.

(2) Through the lower punching press subassembly that sets up at fixed subassembly, can carry out compaction shaping to the powder metallurgy helical gear material in the forming die, be convenient for improve the finishing degree of powder metallurgy helical gear, reduce the powder metallurgy helical gear material and remain, the buffer unit who sets up at punching press subassembly simultaneously can carry out buffering protection at powder metallurgy helical gear material undershoot forming die, reduces forming die's damage.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic structural view of a finishing undershoot die structure for a powder metallurgy helical gear according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a buffer assembly of a finishing undershoot die structure for powder metallurgy helical gears according to an embodiment of the present utility model;

fig. 3 is a schematic structural view of a fixing assembly of a finishing undershoot die structure for a powder metallurgy helical gear according to an embodiment of the present utility model.

In the figure:

1. a fixed table; 2. a fixing assembly; 201. a fixing seat; 202. a fixed block; 203. rotating the gear; 204. steering engine; 3. a lower punch assembly; 301. a pressure head; 302. a connecting rod; 303. a mounting base; 304. an electric telescopic rod; 4. a buffer assembly; 401. a limiting block; 402. a telescopic rod; 403. a buffer plate; 404. a buffer spring; 5. a positioning assembly; 501. a positioning plate; 502. positioning columns; 503. a positioning cylinder; 504. a sliding block; 6. an anti-slip pad; 7. a forming die; 8. and a fixing frame.

Detailed Description

For the purpose of further illustrating the concepts of the utility model, there is provided in the drawings, which are a part of the disclosure of the present utility model and are primarily intended to illustrate embodiments and, together with the description, serve to explain the principles of the embodiments, with reference to these, it will be understood by those skilled in the art that other possible embodiments and advantages of the utility model may be made, the components in the drawings not being drawn to scale, and that like reference numerals will generally be used to designate like components.

As shown in fig. 1-3, the utility model provides a finishing lower die structure technical scheme for a powder metallurgy helical gear, which comprises the following steps: the utility model provides a finishing undershoot mould structure for powder metallurgy helical gear, including being the fixed station 1 that the rectangle level set up, be used for placing the required part of powder metallurgy helical gear processing, and the below of fixed station 1 is provided with four support columns that are the cylinder and set up perpendicularly, be used for supporting fixed to fixed station 1, the top of fixed station 1 is provided with fixed subassembly 2, fixed subassembly 2 includes the fixing base 201 that sets up with fixed station 1 top, the top of fixing base 201 is provided with four fixed blocks 202 that are the rectangle structure, and the side of fixed block 202 is the arc structure, be used for fixing forming die 7, and four sliding grooves with fixed block 202 sliding connection have been seted up to the top of fixing base 201, the below of four fixed blocks 202 is connected with rotation gear 203 through the screw thread dish, the side of rotation gear 203 is connected with steering wheel 204, the stiff end setting of steering wheel 204 is in the side of fixing base 201;

the connecting ends of the four fixing blocks 202 are provided with anti-slip pads 6 with arc structures, so as to play a role in anti-slip, the side surfaces of the anti-slip pads 6 are connected with a forming die 7, and the lower part of the forming die 7 is connected with the upper part of the fixing seat 201;

the top of fixed subassembly 2 is connected with down punching press subassembly 3, lower punching press subassembly 3 includes the pressure head 301 that is the perpendicular setting of cylinder with forming die 7 inner wall sliding connection, be used for carrying out the compaction to powder metallurgy helical gear material and handle, the top fixedly connected with of pressure head 301 is the connecting rod 302 that the cylinder set up perpendicularly, the link of connecting rod 302 is provided with the section and is the mount pad 303 of concave style of calligraphy structure, be used for fixing connecting rod 302, the top of mount pad 303 is provided with the electric telescopic handle 304 that is perpendicular setting, and electric telescopic handle 304, steering wheel 204 electric connection has the controller when in actual use, electric telescopic handle 304, steering wheel 204 electric connection has external power supply and switch, electric telescopic handle 304's stiff end is provided with the mount bracket 8 that is the U style of calligraphy structure, the below of mount bracket 8 is connected with the top of mount pad 1.

Specifically, during working, a worker places the forming die 7 on the fixed seat 201, then drives the rotary gear 203 through the steering engine 204, and drives the fixed block 202 to move through the threaded disc by the rotary gear 203, so that the placed forming die 7 is conveniently fixed, and meanwhile, the anti-slip pad 6 arranged on the fixed block 202 is connected with the forming die 7, so that the sliding of the forming die 7 is reduced;

after fixing, a worker places powder metallurgy helical gear materials inside the forming die 7, then is connected with the mounting seat 303 through the connecting rod 302 according to the pressure head 301 matched with the forming die 7, and is mutually matched with the controller through the electric telescopic rod 304 after connection, so that the electric telescopic rod 304 drives the mounting seat 303 and the pressure head 301 to move downwards, and the pressure head 301 is convenient to extrude the powder metallurgy helical gear materials placed in the forming die 7.

As shown in fig. 1-3, the surface of the lower stamping component 3 is connected with a buffer component 4, the buffer component 4 comprises a limiting block 401 which is arranged on the surface of the pressure head 301 and is in a circular structure, four buffer holes are formed below the limiting block 401 and far away from the fixed frame 8, telescopic rods 402 which are vertically arranged are arranged on the inner walls of the four buffer holes, a buffer plate 403 which is connected with the upper part of the forming die 7 and is in a circular structure in section is arranged at the telescopic end of the telescopic rods 402, the center part of the buffer plate 403 is connected with the pressure head 301 in a penetrating way, buffer springs 404 which are vertically arranged and are connected with the surface of the telescopic rods 402 are arranged above the buffer plate 403, and the connecting ends of the buffer springs 404 are connected with the inner walls of the buffer holes;

the surface of fixed subassembly 2 is kept away from buffer unit 4 and is provided with locating component 5, locating component 5 includes two locating plates 501 that are the rectangle level setting that are connected with mount pad 303 surface, the buffer plate 403 is kept away from to the below of two locating plates 501 is provided with the reference column 502 that is the cylinder and set up perpendicularly, the below of reference column 502 is connected with the section and is the positioning tube 503 of concave style of calligraphy structure, positioning tube 503 is connected with fixed station 1 top, the side of two locating plates 501 is provided with the sliding block 504 that is the rectangle structure, the sliding end and the mount 8 medial surface sliding connection of sliding block 504.

Specifically, the downward moving pressure head 301 drives the limiting block 401 to move, and meanwhile, the telescopic rod 402 arranged on the limiting block 401 is matched with the buffer spring 404 and the buffer plate 403, so that auxiliary buffer protection can be performed on the forming die 7;

meanwhile, the installation seat 303 drives the positioning plate 501 and the sliding block 504 to move when moving downwards, the sliding block 504 is in sliding connection with the fixed frame 8, and the positioning column 502 arranged below the positioning plate 501 is connected with the positioning cylinder 503 arranged on the fixed table 1, so that stability in undershoot is improved.

In summary, by means of the above technical scheme of the present utility model, when in operation, a worker places the forming die 7 on the fixing seat 201, then drives the rotating gear 203 through the steering engine 204, so that the rotating gear 203 drives the fixing block 202 through the threaded disc, so as to fix the placed forming die 7, meanwhile, the anti-slip pad 6 arranged on the fixing block 202 is connected with the forming die 7, the forming die 7 is lowered to slide, after fixing, the worker places the powder metallurgy helical gear material inside the forming die 7, then, according to the pressure head 301 matched with the forming die 7, is connected with the mounting seat 303 through the connecting rod 302, and then is mutually matched with the controller through the electric telescopic rod 304, so that when the electric telescopic rod 304 drives the mounting seat 303 and the pressure head 301 to move downwards, the limiting block 401, the positioning plate 501 and the sliding block 504 are driven, and simultaneously, the telescopic rod 402 arranged on the limiting block 401 is mutually matched with the buffer spring 404 and the buffer plate 403, so that auxiliary buffer protection can be carried out on the forming die 7, and the positioning post 502 arranged on the downward moving positioning plate 501 is connected with the positioning cylinder 503 arranged on the fixing table 1, so as to be beneficial to improving the stability during downward punching.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The finishing undershoot die structure for the powder metallurgy helical gear is characterized by comprising a fixed table (1), wherein a fixed assembly (2) is arranged above the fixed table (1), and a lower punching assembly (3) is connected above the fixed assembly (2);

the surface of lower punching press subassembly (3) is connected with buffer assembly (4), the surface of fixed subassembly (2) is kept away from buffer assembly (4) and is provided with locating component (5).

2. The finishing undershoot die structure for powder metallurgy helical gear according to claim 1, wherein the fixing assembly (2) comprises a fixing seat (201) arranged above a fixing table (1), a plurality of fixing blocks (202) are arranged above the fixing seat (201), a rotating gear (203) is connected below the plurality of fixing blocks (202) through a threaded disc, a steering engine (204) is connected to the side face of the rotating gear (203), and the fixed end of the steering engine (204) is arranged on the side face of the fixing seat (201).

3. The finishing undershoot mold structure for powder metallurgy helical gears according to claim 2, wherein the connecting ends of the fixing blocks (202) are provided with anti-slip pads (6), the side surfaces of the anti-slip pads (6) are connected with forming molds (7), and the lower parts of the forming molds (7) are connected with the upper parts of the fixing seats (201).

4. A finishing undershoot die structure for a powder metallurgy helical gear according to claim 3, characterized in that the undershoot die structure (3) comprises a pressure head (301) which is slidably connected with the inner wall of a forming die (7), a connecting rod (302) is fixedly connected to the upper side of the pressure head (301), a mounting seat (303) is arranged at the connecting end of the connecting rod (302), and an electric telescopic rod (304) is arranged above the mounting seat (303).

5. The finishing undershoot die structure for powder metallurgy helical gears according to claim 4, wherein a fixing frame (8) is arranged at a fixed end of the electric telescopic rod (304), and the lower part of the fixing frame (8) is connected with the upper part of the fixing table (1).

6. The finishing undershoot die structure for powder metallurgy helical gear according to claim 5, wherein the buffer component (4) comprises a limiting block (401) which is arranged on the surface of the pressure head (301), a plurality of buffer holes are formed in the lower side of the limiting block (401) away from the fixed frame (8), a plurality of telescopic rods (402) are arranged on the inner walls of the buffer holes, a buffer plate (403) which is connected with the upper side of the forming die (7) is arranged at the telescopic ends of the telescopic rods (402), a buffer spring (404) which is connected with the surface of the telescopic rods (402) is arranged above the buffer plate (403), and the connecting ends of the buffer springs (404) are connected with the inner walls of the buffer holes.

7. The finishing undershoot die structure for powder metallurgy helical gear according to claim 6, wherein the positioning assembly (5) comprises a plurality of positioning plates (501) connected with the surface of the mounting seat (303), positioning columns (502) are arranged below the positioning plates (501) far away from the buffer plate (403), positioning cylinders (503) are connected below the positioning columns (502), the positioning cylinders (503) are connected with the upper side of the fixed table (1), sliding blocks (504) are arranged on the side faces of the positioning plates (501), and sliding ends of the sliding blocks (504) are in sliding connection with the inner side faces of the fixed frame (8).