CN212703849U

CN212703849U - Thread forming structure in mould

Info

Publication number: CN212703849U
Application number: CN202021025149.2U
Authority: CN
Inventors: 夏斌; 袁叙松
Original assignee: Huangyu Precision Technology Suzhou Co ltd
Current assignee: Huangyu Precision Technology Suzhou Co ltd
Priority date: 2020-06-05
Filing date: 2020-06-05
Publication date: 2021-03-16
Anticipated expiration: 2030-06-05

Abstract

The utility model discloses a screw thread shaping structure in mould, including the shaping punching pin, the below of shaping punching pin even has the gear, the gear is driven by the gear pull rod and is rotated, the gear pull rod even has the piston rod of cylinder, the border direction of shaping punching pin is provided with the shaping and goes into the piece, the shaping is gone into the piece and is even has the front end of spring pull rod, the rear end of spring pull rod is provided with fixed arch, the cover is equipped with second spring and gear on the spring pull rod, the gear is located between piece and the second spring are gone into in the shaping, be provided with the liftout on the shaping punching pin, the border of liftout is provided with the slotting tool, the slotting tool downstream inserts between piece and the gear are gone into in the shaping. The utility model provides a pair of interior screw thread shaping structure of mould increases the internal thread shaping structure inside the mould, can avoid the processing cycle length that product secondary operation caused, machining efficiency hangs down and the higher defect of cost.

Description

Thread forming structure in mould

Technical Field

The utility model relates to a screw thread shaping structure in mould belongs to mould processing technology field.

Background

As shown in fig. 4, the product has a threaded structure on the outside. In the prior art, a die for processing the product generally has no in-die thread forming structure, and the product needs to be processed by a secondary machine after being formed. This has the following disadvantages: the processing period of the product is long; the machining efficiency of the product is low; the quality of the machined product is difficult to ensure and the machining cost is high.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art's defect, provide one kind at the inside internal thread forming structure that increases of mould, can avoid the processing cycle that product secondary operation caused long, the low and mould internal thread forming structure of the higher defect of cost of machining efficiency.

In order to solve the technical problem, the utility model discloses a technical scheme does:

the utility model provides a screw thread shaping structure in mould, includes the shaping punching pin, the below of shaping punching pin even has the gear, the gear is driven by the gear pull rod and is rotated, the gear pull rod even has the piston rod of cylinder, the border direction of shaping punching pin is provided with the shaping and goes into the piece, the shaping is gone into the piece and is even has the front end of spring pull rod, the rear end of spring pull rod is provided with fixed arch, the cover is equipped with second spring and gear on the spring pull rod, the gear is located between piece and the second spring are gone into in the shaping, be provided with the liftout on the shaping punching pin, the border of liftout is provided with the slotting tool, the slotting tool downstream inserts between piece and the gear are gone into in the shaping.

The liftout is connected with a first spring.

The number of the forming inlet blocks is N, the forming inlet blocks are uniformly distributed along the circumference of the forming punch, and N is an integer greater than or equal to 3.

The number of the molding blocks is 4.

The lower part of slotting tool is provided with interior slant structure, shaping income piece upper portion is provided with outer slant structure, interior slant structure with outer slant structure seamless cooperation.

The number of the slotting tools is 4.

The utility model has the advantages that: the utility model provides a pair of thread forming structure in mould, simple structure can drive the shaping punching pin through gear revolve and rotate, adds the cooperation of shaping income piece, spring pull rod and slotting tool etc. and can carry out the thread forming in the mould, possesses product processing cycle is short, product machining efficiency is high, product quality is guaranteed and advantage with low costs.

Drawings

Fig. 1 is a schematic structural view of an in-mold thread forming structure of the present invention;

fig. 2 is a schematic top view of the internal thread forming structure of the present invention;

FIG. 3 is a schematic view of the gear pull rod and the gear of the present invention;

fig. 4 is a schematic structural view of the workpiece to be machined according to the present invention.

The reference numbers in the figures are as follows: 1-gear pull rod; 2-a cylinder; 3-a first spring; 4, slotting tool; 5-ejecting; 6-gear; 7-a second spring; 8-spring pull rod; 9-gear; 10-forming a punch; 11-forming into blocks; 12-a workpiece.

Detailed Description

The present invention will be further described with reference to the accompanying drawings, and the following embodiments are only used to illustrate the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1 to fig. 3, the utility model provides an interior screw thread shaping structure of mould, including shaping punching pin 10, the below of shaping punching pin 10 even has gear 9, and gear 9 is driven by gear pull rod 1 and is rotated, and gear pull rod 1 even has the piston rod of cylinder 2. The utility model discloses a cylinder 2 is flexible, drives gear pull rod 1 side-to-side motion, and sawtooth and gear 9 cooperation on the gear pull rod 1 drive gear 9 clockwise and anticlockwise and rotate.

The forming punch 10 is provided with N forming blocks 11 along the circumference direction, the number of the forming blocks 11 is N, and the N forming blocks are uniformly distributed along the circumference of the forming punch 10, where N is an integer greater than or equal to 3, and is preferably 4 in the present embodiment. The shaping is gone into piece 11 and is linked with the front end of spring pull rod 8, and the rear end of spring pull rod 8 is provided with fixed arch, and the cover is equipped with second spring 7 and gear 6 on the spring pull rod 8, and gear 6 is located the shaping and goes into between piece 11 and the second spring 7. The gear 6 is fixed, and under the normal condition, under the action of the elastic force of the second spring 7, the molded insert 11 is in contact with the gear 6.

The forming punch 10 is provided with a jacking material 5, and the jacking material 5 is connected with a first spring 3. The periphery of the liftout 5 is provided with the slotting tools 4, and the number of the slotting tools 4 is 4. The slotting tool 4 moves downwards to be inserted between the insert block 11 and the gear 6. The lower part of the slotting tool 4 is provided with an inner oblique structure, the upper part of the forming insert 11 is provided with an outer oblique structure, and the inner oblique structure and the outer oblique structure are in seamless fit.

The utility model discloses mainly pass for driving gear 9 for gear pull rod 1 by cylinder 2, gear 9 drives the rotatory material of taking off of shaping drift and the shaping that resets again, and main working process is: when the die is completely opened, the air cylinder 2 transmits force to the gear pull rod 1 to move rightwards, the gear pull rod 1 drives the gear 9, the gear 9 drives the forming punch 10 to move anticlockwise, the forming punch 10 is in a waiting forming state, secondly, when the die moves downwards, the liftout 5 presses the product 12 into the lower die forming punch under the pressure of the spring 3, the punch press continues to move downwards, the forming insert 11 moves towards the circle center under the action of the slotting tool 4, the forming thread is formed, the die completely closes the die, and the forming is finished, thirdly, when the die completely closes the die and the die moves upwards, the slotting tool 3 leaves the lower die forming insert 11, the forming insert 11 is pulled by the spring pull rod 8, the forming insert 11 moves outwards under the action of the spring 7, when the forming insert 11 is contacted with the gear 6, the outward movement is stopped, when the upper die liftout 5 leaves the lower die forming punch 10 for 5-8 mm, the air cylinder 2 transmits force to the gear pull rod 1 to move leftwards, the gear pull rod drives the gear 9, the gear 9 drives the forming punch 10 to move clockwise, and the lower die forming punch 10 rotates to be separated from the machined part 12.

The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims

1. The utility model provides a screw thread shaping structure in mould which characterized in that: comprises a forming punch (10), a gear (9) is connected below the forming punch (10), the gear (9) is driven to rotate by a gear pull rod (1), the gear pull rod (1) is connected with a piston rod of the cylinder (2), a molding insert (11) is arranged in the circumferential direction of the molding punch (10), the molding insert (11) is connected with the front end of the spring pull rod (8), a fixed bulge is arranged at the rear end of the spring pull rod (8), a second spring (7) and a gear (6) are sleeved on the spring pull rod (8), the gear (6) is positioned between the molded insert (11) and the second spring (7), the forming punch (10) is provided with a liftout (5), the periphery of the liftout (5) is provided with a slotting tool (4), the slotting tool (4) moves downwards and is inserted between the forming insert (11) and the gear (6).

2. The in-mold thread forming structure according to claim 1, wherein: the liftout (5) is connected with a first spring (3).

3. The in-mold thread forming structure according to claim 1, wherein: the number of the molding inlet blocks (11) is N, and the molding inlet blocks are uniformly distributed along the circumference of the molding punch (10), wherein N is an integer greater than or equal to 3.

4. An in-mold thread forming structure according to claim 3, wherein: the number of the molding inlet blocks (11) is 4.

5. The in-mold thread forming structure according to claim 1, wherein: the lower part of slotting tool (4) is provided with interior slant structure, shaping income piece (11) upper portion is provided with outer slant structure, interior slant structure with outer slant structure seamless cooperation.

6. The in-mold thread forming structure according to claim 4, wherein: the number of the slotting tools (4) is 4.