CN215657356U

CN215657356U - High-strength triangular-tooth self-tapping screw forming die

Info

Publication number: CN215657356U
Application number: CN202121695142.6U
Authority: CN
Inventors: 顾洪; 顾晨词
Original assignee: Haiyan Kehong Mould Co ltd
Current assignee: Haiyan Kehong Mould Co ltd
Priority date: 2021-07-24
Filing date: 2021-07-24
Publication date: 2022-01-28
Anticipated expiration: 2031-07-24

Abstract

The utility model discloses a high-strength triangular-tooth self-tapping screw forming die, which belongs to the technical field of dies and comprises a lower die, wherein an upper die is arranged above the lower die, a lower die core is arranged in the middle of the upper end of the lower die, an upper die core is arranged in the lower end of the upper die, and spring fixing pins are arranged on the peripheries of the upper die core and the lower die core; according to the utility model, the bottom of the lower die is provided with the ejection pin, the upper die moves upwards after punch forming, the pin body slides upwards under the elastic action of the ejection spring, the upper end of the pin body ejects the workpiece, so that the workpiece extends out of the lower die core, and the trouble of manual ejection is avoided.

Description

High-strength triangular-tooth self-tapping screw forming die

Technical Field

The utility model belongs to the technical field of dies, and particularly relates to a high-strength triangular-tooth self-tapping screw forming die.

Background

The mould is various moulds and tools for obtaining required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production. In short, a mold is a tool used to make a shaped article, the tool being made up of various parts, different molds being made up of different parts. The processing of the appearance of an article is realized mainly through the change of the physical state of a formed material.

Chinese patent application No. 201220117507.1 discloses a triangle tooth self-tapping screw forming die, and it has the inconvenient problem of mould benevolence fixed mounting, and the installation is wasted time and energy, and ejection pin is unable automatic ejecting simultaneously, influences the screw and takes out, and it is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a high-strength triangular self-tapping screw forming die which has the characteristics of convenience in fixing and mounting and convenience in screw ejection.

In order to achieve the purpose, the utility model provides the following technical scheme: a high-strength triangular-tooth self-tapping screw forming die comprises a lower die, wherein an upper die is arranged above the lower die, a lower die core is arranged in the middle of the upper end of the lower die, an upper die core is arranged inside the lower end of the upper die, spring fixing pins are arranged on the peripheries of the upper die core and the lower die core, and pin holes corresponding to the spring fixing pins are arranged inside the upper die and the lower die;

the spring fixing pin comprises a sliding groove, an adjusting plate, pin heads and a reset spring, wherein the sliding groove is formed in the lower die core, the adjusting plate is arranged in the sliding groove, three pin heads are uniformly arranged at one end, close to the pin hole, of the adjusting plate, and the reset spring is arranged between the adjusting plate and the inner wall of the sliding groove.

Preferably, the lower end side of the upper die core is provided with two spring fixing pins, and the number of the reset springs in the upper die core is two.

Preferably, the surfaces of the lower die kernel and the upper die kernel are uniformly provided with limiting blocks.

Preferably, the pin head always extends out of the side edges of the lower die core and the upper die core under the elastic force of the return spring.

Preferably, the inside of lower mould is provided with ejecting round pin, ejecting round pin includes the round pin body, goes out to use spring, closing cap and activity chamber, wherein, the inside lower extreme of lower mould is provided with the activity chamber, the bottom in activity chamber is provided with the closing cap, the inside of lower mould is run through and is provided with the round pin body, the surface of round pin body is provided with goes out to use the spring.

Preferably, the sealing cover is in threaded engagement with the lower die, the ejection spring is nested on the surface of the pin body, and the lower end of the ejection spring is in snap-fit connection with the sealing cover.

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

1. the spring fixing pin is arranged, the upper die core and the lower die core are arranged in the corresponding upper die and the lower die, the limiting block is clamped into the groove for limiting, the adjusting plate is loosened, the adjusting plate moves back under the elastic action of the reset spring, the pin head is inserted into the pin hole, the lower die core and the upper die core are quickly fixed, the limiting and the fixing are firm, and time and labor are saved;

2. according to the utility model, the ejection pin is arranged at the bottom of the lower die, the upper die moves upwards after punch forming, the pin body slides upwards under the elastic action of the ejection spring, the upper end of the pin body ejects the workpiece, so that the workpiece extends out of the lower die core, the workpiece is convenient to take down, and the trouble of manual ejection is avoided.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a top view of the lower mold core of the present invention

FIG. 4 is a schematic view of a push-out pin according to the present invention;

in the figure: 1. an upper die; 2. a lower die core; 3. a lower die; 4. ejecting a pin; 41. a pin body; 42. a spring for ejection; 43. sealing the cover; 44. a movable cavity; 5. a spring fixing pin; 51. a sliding groove; 52. an adjusting plate; 53. a pin head; 54. a return spring; 6. an upper die core; 7. a pin hole; 8. and a limiting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-4, the present invention provides the following technical solutions: a high-strength triangular-tooth self-tapping screw forming die comprises a lower die 3, an upper die 1 is arranged above the lower die 3, a lower die core 2 is arranged in the middle of the upper end of the lower die 3, an upper die core 6 is arranged inside the lower end of the upper die 1, spring fixing pins 5 are arranged on the peripheries of the upper die core 6 and the lower die core 2, and pin holes 7 corresponding to the spring fixing pins 5 are arranged inside the upper die 1 and the lower die 3;

the spring fixing pin 5 comprises a sliding groove 51, an adjusting plate 52, pin heads 53 and a return spring 54, wherein the sliding groove 51 is formed in the lower die core 2, the adjusting plate 52 is arranged in the sliding groove 51, the three pin heads 53 are uniformly arranged at one end, close to the pin hole 7, of the adjusting plate 52, and the return spring 54 is arranged between the adjusting plate 52 and the inner wall of the sliding groove 51.

Specifically, the side edge of the lower end of the upper mold core 6 is provided with two spring fixing pins 5, the reset springs 54 in the upper mold core 6 are arranged,

through adopting above-mentioned technical scheme, make things convenient for upper die benevolence 6 can fix fast at last mould 1 lower extreme.

In particular, the surface peripheries of the lower mold core 2 and the upper mold core 6 are evenly provided with limiting blocks 8,

through adopting above-mentioned technical scheme, carry on spacingly when realizing that lower mould benevolence 2 and last mould benevolence 6 are fixed, avoid not hard up.

Specifically, the pin head 53 is always extended out of the side edges of the lower mold core 2 and the upper mold core 6 under the elastic force of the return spring 54,

through adopting above-mentioned technical scheme, guarantee that during the fixed time of round pin head 53 inserts pinhole 7 all the time, avoid droing.

When the device is used, the adjusting plate 52 is pressed to enable the pin head 53 to move and retract into the sliding groove 51, the return spring 54 is compressed, the upper mold core 6 and the lower mold core 2 are installed in the corresponding upper mold 1 and lower mold 3, the limiting block 8 is clamped into the groove to limit, the adjusting plate 52 is loosened, the adjusting plate 52 moves back under the elastic force of the return spring 54, the pin head 53 is inserted into the pin hole 7, the lower mold core 2 and the upper mold core 6 are quickly fixed, the limiting and fixing are firm, time and labor are saved, blanks are added into the lower mold core 2, the upper mold 1 is pressed down to be matched with the lower mold 3 to be punched, and the head and the triangular rod of a workpiece are punched and formed;

example 2

The present embodiment is different from embodiment 1 in that: the lower die 3 is internally provided with an ejection pin 4, the ejection pin 4 comprises a pin body 41, an ejection spring 42, a sealing cover 43 and a movable cavity 44, wherein the lower end of the interior of the lower die 3 is provided with the movable cavity 44, the bottom of the movable cavity 44 is provided with the sealing cover 43, the interior of the lower die 3 is provided with the pin body 41 in a penetrating way, the surface of the pin body 41 is provided with the ejection spring 42,

by adopting the technical scheme, the pin body 41 is moved upwards in a sliding manner under the elastic force action of the ejection spring 42, and the upper end of the pin body 41 ejects the workpiece, so that the workpiece extends out of the lower die core 2 and is convenient to take down, and the trouble of manual ejection is avoided.

Specifically, the sealing cover 43 is connected with the lower die 3 in a threaded engagement manner, the spring 42 for ejection is nested on the surface of the pin body 41, the lower end of the spring 42 for ejection is connected with the sealing cover 43 in a snap-fit manner,

by adopting the technical scheme, the pin body 41 is conveniently and fixedly arranged in the lower die 3.

When the mold is used, the ejection pin 4 is arranged at the bottom of the lower mold 3, the upper mold 1 moves upwards after punch forming, the pin body 41 slides upwards under the elastic action of the ejection spring 42, the upper end of the pin body 41 pushes the workpiece, the workpiece extends out of the lower mold core 2, the workpiece is conveniently taken down, the trouble of manual ejection is avoided, and the mold is convenient and fast.

The working principle and the using process of the utility model are as follows: when the utility model is used, the pin head 53 moves into the sliding groove 51 by pressing the adjusting plate 52, the return spring 54 is compressed, the upper die core 6 and the lower die core 2 are arranged in the corresponding upper die 1 and the lower die 3, the limiting block 8 is clamped into the groove for limiting, the adjusting plate 52 is loosened, the adjusting plate 52 moves back under the action of the elastic force of the return spring 54, the pin head 53 is inserted into the pin hole 7, realizes the rapid fixation of the lower mold core 2 and the upper mold core 6, has firm limit fixation, saves time and labor, adding blanks into the lower die core 2, pressing the upper die 1 downwards to be matched with the lower die 3 for punching, punching and forming the head part and the triangular rod part of the workpiece, after punching and forming, the upper die 1 moves upwards, the pin body 41 moves upwards in a sliding manner under the elastic force action of the ejection spring 42, and the upper end of the pin body 41 pushes the workpiece, so that the workpiece extends out of the lower die core 2 and is convenient to take down, the trouble of manual ejection is avoided, and the ejection is convenient and rapid.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high strength triangle tooth self-tapping screw forming die, includes lower mould (3), its characterized in that: an upper die (1) is arranged above the lower die (3), a lower die core (2) is arranged in the middle of the upper end of the lower die (3), an upper die core (6) is arranged inside the lower end of the upper die (1), spring fixing pins (5) are arranged on the peripheries of the upper die core (6) and the lower die core (2), and pin holes (7) corresponding to the spring fixing pins (5) are arranged inside the upper die (1) and the lower die (3);

spring fixed pin (5) are including sliding tray (51), regulating plate (52), round pin head (53) and reset spring (54), wherein, the inside of lower mould benevolence (2) is provided with sliding tray (51), the inside of sliding tray (51) is provided with regulating plate (52), the one end that regulating plate (52) are close to pinhole (7) evenly is provided with three round pin head (53), be provided with reset spring (54) between regulating plate (52) and sliding tray (51) inner wall.

2. The forming die for the high-strength triangular self-tapping screw as claimed in claim 1, wherein: the lower end side of the upper die core (6) is provided with two spring fixing pins (5), and the number of the reset springs (54) in the upper die core (6) is two.

3. The forming die for the high-strength triangular self-tapping screw as claimed in claim 1, wherein: and limiting blocks (8) are uniformly arranged on the periphery of the surfaces of the lower die core (2) and the upper die core (6).

4. The forming die for the high-strength triangular self-tapping screw as claimed in claim 1, wherein: the pin head (53) always extends out of the side edges of the lower die core (2) and the upper die core (6) under the elastic force action of the return spring (54).

5. The forming die for the high-strength triangular self-tapping screw as claimed in claim 1, wherein: the inside of lower mould (3) is provided with ejecting round pin (4), ejecting round pin (4) are including round pin body (41), ejecting spring (42) of using, closing cap (43) and activity chamber (44), wherein, the inside lower extreme of lower mould (3) is provided with activity chamber (44), the bottom in activity chamber (44) is provided with closing cap (43), the inside of lower mould (3) is run through and is provided with round pin body (41), the surface of round pin body (41) is provided with ejecting spring (42) of using.

6. The mold for forming a high-strength triangular self-tapping screw according to claim 5, wherein: the sealing cover (43) is in threaded engagement with the lower die (3), the ejection spring (42) is nested on the surface of the pin body (41), and the lower end of the ejection spring (42) is in snap-fit connection with the sealing cover (43).