CN-115921673-B - Irregular inner hole continuous forming die and forming process for robot precise fittings

CN115921673BCN 115921673 BCN115921673 BCN 115921673BCN-115921673-B

Abstract

The invention discloses a robot precision fitting irregular inner hole continuous forming die which comprises an operation table, wherein the top of the operation table is fixedly connected with a lower die set, the top of the lower die set is provided with an upper die set, a first die structure, a second die structure, a third die structure and a fourth die structure are sequentially arranged between the upper die set and the lower die set, and a demoulding structure is arranged on the fourth die structure. According to the invention, the material belt is subjected to preliminary stamping forming through the first convex blocks and the first grooves on the first die structure, then the material belt is subjected to punching through the first stamping rods and the second stamping rods on the third die structure, and then the material belt is brought into the fourth die structure.

Inventors

LI HUIBO
ZHAO ZHIHUAI

Assignees

昆山市华霆精密机械有限公司

Dates

Publication Date: 20260508
Application Date: 20221207

Claims (6)

1. The robot precise fitting irregular inner hole continuous forming die comprises an operation table and is characterized in that the top of the operation table is fixedly connected with a lower die set (1), an upper die set (2) is arranged at the top of the lower die set (1), a first die structure, a second die structure, a third die structure and a fourth die structure are sequentially arranged between the upper die set (2) and the lower die set (1), and a demoulding structure is arranged on the fourth die structure; The first die structure comprises a first upper pressing plate (3), a first lug (4) is fixedly connected to the bottom of the first upper pressing plate (3), a first lower die holder (5) is arranged at the position corresponding to the bottom of the first upper pressing plate (3), and a first groove (6) is formed in the top of the first lower die holder (5); The second die structure comprises a second upper pressing plate (7), a second lug (8) is fixedly connected to the bottom of the second upper pressing plate (7), a second lower die holder (9) is arranged at the position corresponding to the bottom of the second upper pressing plate (7), and a second groove (10) is formed in the top of the second lower die holder (9); The third die structure comprises a third upper pressing plate (11), a third bump (12) is fixedly connected to the bottom of the third upper pressing plate (11), a first punching rod (13) is fixedly connected to the bottom of the third bump (12), second punching rods (14) are fixedly connected to two sides of the bottom of the third upper pressing plate (11), a third lower die holder (15) is arranged at the bottom of the third upper pressing plate (11) and corresponds to the bottom of the third upper pressing plate, a third groove (16) is formed in the top of the third lower die holder (15), a first punching hole (17) is formed in the bottom of the third groove (16) and corresponds to the first punching rod (13), and a second punching hole (18) is formed in the two sides of the top of the third lower die holder (15) and corresponds to the second punching rod (14); The fourth die structure comprises a fourth upper pressing plate (19), a fourth lug (20) is fixedly connected to the bottom of the fourth upper pressing plate (19), folding blocks (21) are fixedly connected to two sides of the bottom of the fourth upper pressing plate (19), a fourth lower die holder (22) is arranged at the bottom of the fourth upper pressing plate (19) and at the corresponding position of the bottom of the fourth upper pressing plate, a fourth groove (23) is formed in the top of the fourth lower die holder (22), folding surfaces (24) are arranged on two sides of the top of the fourth lower die holder (22), a cutting knife (25) is fixedly connected to one side, close to the third upper pressing plate (11), of the fourth upper pressing plate (19), and a cutting plate (26) is fixedly connected to one side, close to the third lower die holder (15), of the fourth lower die holder (22). The demolding structure comprises two connecting plates (27), wherein the two connecting plates (27) are respectively and fixedly connected to two sides of a fourth upper pressing plate (19), a placing groove (28) is formed in a fourth lower die holder (22), a transverse plate (29) is arranged in the placing groove (28), the transverse plate (29) is fixedly connected between the two connecting plates (27), an ejector rod (30) is arranged at the top of the transverse plate (29), a through groove (31) is formed in the top of the fourth lower die holder (22), the through groove (31) is communicated with the placing groove (28), and the ejector rod (30) is arranged in the through groove (31); The first lug (4) is matched with the first groove (6), the second lug (8) is matched with the second groove (10), the third lug (12) is matched with the third groove (16), and the fourth lug (20) is matched with the fourth groove (23); The bottom of the folding block (21) is inclined downwards, the top of the folding surface (24) is inclined downwards, the folding block (21) is matched with the folding surface (24), and when the folding block (21) and the folding surface (24) in the fourth die structure punch the side surface of the material belt, the cutting knife (25) cuts the material belt.
2. The irregular inner hole continuous forming die for the robot precision fitting according to claim 1, wherein the first upper pressing plate (3), the second upper pressing plate (7), the third upper pressing plate (11) and the fourth upper pressing plate (19) are fixedly connected with the upper die set (2), the first lower die holder (5), the second lower die holder (9), the third lower die holder (15) and the fourth lower die holder (22) are fixedly connected with the lower die set (1), the cross section shapes of the first protruding block (4) and the second protruding block (8) are semicircular, and the diameter of the first protruding block (4) is smaller than that of the second protruding block (8).
3. The irregular inner hole continuous forming die for the robot precision fittings, as set forth in claim 1, characterized in that the upper die set (2) is provided with a guide structure, the guide structure comprises a top plate, the top plate is arranged at the top of the upper die set (2), the top plate is fixedly connected with a continuous stamping device, a hydraulic rod (32) is fixedly connected between the top plate and the upper die set (2), a guide column (33) is fixedly connected between the top plate and the lower die set (1), the guide column (33) penetrates through the upper die set (2), and the upper die set (2) is slidably connected with the guide column (33).
4. The irregular inner hole continuous forming die for the robot precision fitting of claim 3, wherein a first spring (34) is fixedly connected between the top plate and the upper die set (2), a second spring (35) is fixedly connected between the upper die set (2) and the lower die set (1), and the first spring (34) and the second spring (35) are both arranged on the outer surface of the guide post (33).
5. The irregular inner hole continuous forming die for the robot precision fitting according to claim 1, wherein a third spring (36) is fixedly connected between the ejector rod (30) and the transverse plate (29), a sliding rod (37) is fixedly connected to the bottom of the ejector rod (30), the sliding rod (37) penetrates through the transverse plate (29), and the sliding rod (37) is in sliding connection with the transverse plate (29).
6. The continuous forming process for the irregular inner hole of the robot precision fitting comprises the continuous forming die for the irregular inner hole of the robot precision fitting according to any one of claims 1 to 5, and is characterized by comprising the following operation steps: s1, conveying a material belt, and conveying the material belt between an upper die set (2) and a lower die set (1); s2, performing first stamping forming, namely primarily stamping forming the material belt through a first die structure; S3, second stamping forming is carried out, and the material belt subjected to first stamping forming is subjected to second stamping forming after passing through a second die structure; s4, punching, wherein the material belt formed by the second punching is punched through a third die structure; s5, third stamping forming, namely stamping the side surface of the punched material belt through a fourth die structure to form a product; S6, shearing, namely shearing the material belt by a cutter (25) while punching the side surface of the material belt; s7, demolding, and separating the product through a demolding structure.

Description

Irregular inner hole continuous forming die and forming process for robot precise fittings Technical Field The invention relates to the technical field of mold design, in particular to a continuous forming mold and a forming process for irregular inner holes of precise fittings of robots. Background The mould is a tool for manufacturing molded articles, the tool is composed of various parts, different moulds are composed of different parts, the processing of the appearance of the articles is realized mainly through the change of the physical state of molded materials, the robot is a robot which acts like a human body, the robot has intelligence and can automatically complete various operations and do various actions, the robot is composed of a computer, a sensor, a manipulator and a walking device, the appearance of the robot is not very similar to that of a human body, but can replace the human body to do things, the manipulator for the robot can assemble the machine, weld workpieces, carry things, engage in agricultural labor and the like, the accessory needed by the robot is mostly a precise accessory in the production process, the shape is irregular, the existing mould cannot meet the requirement of the precise accessory of the robot, and most of the production process is to cut raw materials firstly, then bend the sheet materials, and the extra power source is needed to have influence on the precision of production. Therefore, it is necessary to solve the above problems by inventing a continuous forming die and a forming process for irregular inner holes of a robot precision fitting. Disclosure of Invention The invention aims to provide an irregular inner hole continuous forming die for a robot precision fitting, which solves the problems that the existing die cannot meet the requirements of the robot precision fitting, and most of production processes are that a raw material plate is sheared firstly and then punched and bent, and an additional power source is needed for demolding, so that the production precision and efficiency are affected. In order to achieve the aim, the invention provides the technical scheme that the robot precise fitting irregular inner hole continuous forming die comprises an operation table, wherein the top of the operation table is fixedly connected with a lower die set, the top of the lower die set is provided with an upper die set, a first die structure, a second die structure, a third die structure and a fourth die structure are sequentially arranged between the upper die set and the lower die set, and a demoulding structure is arranged on the fourth die structure; the first die structure comprises a first upper pressing plate, a first lug is fixedly connected to the bottom of the first upper pressing plate, a first lower die holder is arranged at the position corresponding to the bottom of the first upper pressing plate, and a first groove is formed in the top of the first lower die holder; the second die structure comprises a second upper pressing plate, a second lug is fixedly connected to the bottom of the second upper pressing plate, a second lower die holder is arranged at the position corresponding to the bottom of the second upper pressing plate, and a second groove is formed in the top of the second lower die holder; The third die structure comprises a third upper pressing plate, a third bump is fixedly connected to the bottom of the third upper pressing plate, a first punching rod is fixedly connected to the bottom of the third bump, second punching rods are fixedly connected to the two sides of the bottom of the third upper pressing plate, a third lower die holder is arranged at the bottom of the third upper pressing plate and at the corresponding position of the bottom of the third upper pressing plate, a third groove is formed in the top of the third lower die holder, a first punching hole is formed in the bottom of the third groove and at the position corresponding to the first punching rod, and a second punching hole is formed in the two sides of the top of the third lower die holder and at the position corresponding to the second punching rod; The fourth die structure comprises a fourth upper pressing plate, a fourth lug is fixedly connected to the bottom of the fourth upper pressing plate, folding blocks are fixedly connected to two sides of the bottom of the fourth upper pressing plate, a fourth lower die holder is arranged at the bottom of the fourth upper pressing plate and at the corresponding position of the bottom of the fourth upper pressing plate, a fourth groove is formed in the top of the fourth lower die holder, folding surfaces are arranged on two sides of the top of the fourth lower die holder, a cutting knife is fixedly connected to one side, close to the third upper pressing plate, of the fourth upper pressing plate, and a cutting plate is fixedly connected to one side, close to the third lower die holder, of the fourth lower die holder; the