CN210617058U

CN210617058U - One-step forming die for product with threaded hole

Info

Publication number: CN210617058U
Application number: CN201921329568.2U
Authority: CN
Inventors: 王善华; 徐连兵; 王细俤; 甘先涵; 刘明英; 王敏敏
Original assignee: Kunshan SHD Precision Molds Co ltd
Current assignee: Kunshan SHD Precision Molds Co ltd
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2020-05-26
Anticipated expiration: 2029-08-16

Abstract

The utility model discloses a one-step forming die for products with threaded holes, which comprises an upper die and a lower die which are correspondingly arranged; a cavity for forming a product is formed between the upper die and the lower die; the lower die is provided with a thread forming block, a rotating assembly and a nut sleeve, the thread forming block is fixed at one end of the rotating assembly and extends into a product threaded hole formed in the die cavity, the circumferential surface of the other end of the rotating assembly is provided with threads and is inserted into the nut sleeve, and a driving rack for driving the rotating assembly to rotate is arranged in the upper die. The utility model discloses can realize the one shot forming of the product that has the screw hole structure, practice thrift manufacturing cost, improve production efficiency.

Description

One-step forming die for product with threaded hole

Technical Field

The utility model relates to a mould shaping technical field, it is specific, its show has the one shot forming mould of screw hole product.

Background

The special-shaped nut 100 shown in fig. 1 has a spiral fixing hole 101, and is prepared by forming a semi-finished product and then spirally processing the fixing hole of the semi-finished product, so that the processing procedure is complicated, and the production efficiency is low.

Therefore, it is necessary to provide a one-step molding die for a product with a threaded hole to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides an one shot forming mould with screw hole product, its one shot forming that can realize the product that has screw hole structure has practiced thrift manufacturing cost, has improved production efficiency.

The utility model discloses a following technical scheme realizes above-mentioned purpose: a one-step forming die for a product with a threaded hole comprises an upper die and a lower die which are correspondingly arranged; a cavity for forming a product is formed between the upper die and the lower die; the lower die is provided with a thread forming block, a rotating assembly and a nut sleeve, the thread forming block is fixed at one end of the rotating assembly and extends into a product threaded hole formed in the die cavity, the circumferential surface of the other end of the rotating assembly is provided with threads and is inserted into the nut sleeve, and a driving rack for driving the rotating assembly to rotate is arranged in the upper die.

Furthermore, the thread forming block, the rotating assembly and the nut sleeve form a rotating thread forming assembly, and a plurality of groups of rotating thread forming assemblies are arranged in the one-step forming die.

Furthermore, a rotary transmission assembly positioned between two adjacent rotary thread forming assemblies and a rotary transmission assembly matched with the driving rack to drive one of the rotary assemblies at the extreme end to rotate are further arranged in the lower die.

Furthermore, the rotating assembly comprises a first rotating shaft, a first gear and a connecting sleeve, wherein the first rotating shaft is rotatably arranged in the lower die, the first gear is fixedly sleeved on the first rotating shaft, and the connecting sleeve is fixed at the end part of the first rotating shaft and is used for connecting the thread forming block.

Further, the thread is arranged at the other end of the first rotating shaft and matched with the internal thread hole of the nut sleeve, and the linear motion of the first rotating shaft is realized through the rotation of the first rotating shaft.

Furthermore, the rotary transmission assembly comprises second gears in meshing transmission with the first gears in the two adjacent rotary assemblies, the second gears are fixed on a second rotating shaft, and two ends of the second rotating shaft are rotatably arranged in the lower die through bearings.

Furthermore, the rotation transmission assembly comprises a third rotating shaft, a third gear and a fourth gear, wherein the third rotating shaft is rotatably arranged in the lower die through a bearing, the third gear is fixedly sleeved on the third rotating shaft and meshed with the first gear at the most end part, and the fourth gear is fixedly sleeved on the third rotating shaft and meshed with the driving rack.

Furthermore, a limit groove which is matched with the connecting sleeve to form screw-in limit is further arranged on the lower die.

Furthermore, the outer peripheral surface of the nut sleeve is provided with an annular anti-skidding toothed ring, so that the nut sleeve is prevented from rotating and dislocating, and the linear moving distance of the thread forming block is changed to influence the forming precision of a product.

Compared with the prior art, the utility model discloses one shot forming mould with screw hole product's beneficial effect lies in: the forming of the spiral inner hole is quickly formed in a multi-item synchronous screwing-in type embedding mode, and the quick embedding block is guaranteed to exit in a screwing-out mode after forming, so that the product preparation efficiency and the product quality are guaranteed; the upper die moves up and down in the process of die assembly and die stripping to provide a power source, forward rotation and reverse rotation of the thread forming block are realized, the process requirements that the thread forming block needs to extend into a cavity before forming and the thread forming block needs to be separated from the cavity after forming are matched, no additional power source is needed, the structural design is ingenious, automatic rotary movement of a plurality of groups of rotary thread forming assemblies is realized through the rotary transmission assembly, a plurality of products are formed at one time, and the forming efficiency is greatly improved; and this scheme forming die can the direct forming go out the screw hole, compares in transmission manufacturing process, has saved follow-up screw hole secondary operation technology, has practiced thrift the cost of manufacture on the one hand, and on the other hand has improved production efficiency.

Drawings

Fig. 1 is a schematic structural diagram of the product of the embodiment.

Fig. 2 is one of the schematic structural diagrams of the present invention.

Fig. 3 is a second schematic structural diagram of the present invention.

Fig. 4 is a third schematic structural diagram of the present invention.

Fig. 5 is a fourth schematic structural diagram of the present invention.

Fig. 6 is a fifth schematic structural diagram of the present invention.

Detailed Description

Example (b):

referring to fig. 2 to 6, the present embodiment is a one-step forming mold for a product with a threaded hole, which includes an upper mold and a lower mold correspondingly disposed; a cavity (not marked in the figure) for molding a product is formed between the upper die and the lower die; be provided with the rotatory screw forming subassembly that a plurality of groups formed by screw forming piece 1, rotating assembly 2 and nut cover 3 on the lower mould, screw forming piece 1 is fixed in rotating assembly 2's one end and is stretched into form the product screw hole in the die cavity, and rotating assembly 2's other end circumference surface is provided with screw 24 and inserts in nut cover 7, still be provided with in the lower mould and be located adjacent two rotatory transmission assembly 3 between the rotatory screw forming subassembly, the drive one of tip 2 rotatory rotation of rotating assembly passes into subassembly 4, be provided with the drive in the last mould and rotate the rotatory drive rack 5 that passes into subassembly 4.

The rotating component 2 comprises a first rotating shaft 21 rotatably arranged in the lower die, a first gear 22 fixedly sleeved on the first rotating shaft 21, and a connecting sleeve 23 fixed at the end of the first rotating shaft 21 and used for connecting the thread forming block 1. The screw 24 is disposed at the other end of the first rotating shaft 21 and is engaged with the internal screw hole of the nut sleeve 7, and the linear motion of the first rotating shaft 21 is realized by the rotation of the first rotating shaft 21.

The rotary transmission assembly 3 comprises a second gear 31 in meshing transmission with the first gears 22 in two adjacent rotary assemblies 2, the second gear 31 is fixed on a second rotating shaft 32, and two ends of the second rotating shaft 32 are rotatably arranged in the lower die through bearings 33.

The rotation transmission assembly 4 comprises a third rotating shaft 41 rotatably arranged in the lower die through a bearing, a third gear 42 fixedly sleeved on the third rotating shaft 41 and meshed with the first gear 22 at the end part, and a fourth gear 43 fixedly sleeved on the third rotating shaft 41 and meshed with the driving rack 5.

In the process of die assembly and forming, the rack 5 is driven to descend along with the descending of the upper die, the third gear 42 in the rotation transmission assembly 4 is driven to rotate, under the action of gear engagement, the first gear 22 at the end part rotates, then the second rotating component 2 is driven to rotate by the rotating transmission component 3, and so on, the rotation of all the rotating components 2 is realized, at this time, under the matching action of the screw thread 24 at the end part of the rotating component 2 and the nut sleeve 7, the screw thread forming block 1 at the end part of the rotating component 2 is screwed into the cavity and matched with the external cavity groove to form a product forming cavity, after the product shaping, go up mould upward movement, drive rack 5 upward movement simultaneously, under the rotatory transmission effect that rotates afferent subassembly 4 and rotatory drive assembly 3, rotating assembly 2 drives screw thread shaping piece 1 and rotates the screw hole of back-out product, and the rethread jacking device is ejecting with the product and is realized the drawing of patterns.

And a limit groove 6 which is matched with the connecting sleeve 23 to form screwing limit is also arranged on the lower die.

The outer peripheral surface of the nut sleeve 7 is provided with an annular anti-slip gear ring 71, so that the nut sleeve 7 is prevented from rotating and dislocating, and the linear moving distance of the thread forming block 1 is changed to influence the forming precision of a product.

The one shot forming mould that this embodiment has screw hole product forms the shaping of spiral hole fast through the embedding mode of the synchronous formula of screwing in of multinomial, and guarantees through the mode of screwing out that the quick embedding piece withdraws from after the shaping, guarantees product preparation efficiency and product quality.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims

1. The utility model provides an one shot forming mould with screw hole product which characterized in that: the device comprises an upper die and a lower die which are correspondingly arranged; a cavity for forming a product is formed between the upper die and the lower die; the lower die is provided with a thread forming block, a rotating assembly and a nut sleeve, the thread forming block is fixed at one end of the rotating assembly and extends into a product threaded hole formed in the die cavity, the circumferential surface of the other end of the rotating assembly is provided with threads and is inserted into the nut sleeve, and a driving rack for driving the rotating assembly to rotate is arranged in the upper die.

2. The one-step forming die for products with threaded holes according to claim 1, wherein: the screw forming block, the rotating assembly and the nut sleeve form a rotating screw forming assembly, and a plurality of groups of rotating screw forming assemblies are arranged in the one-step forming die.

3. The one-step forming die for products with threaded holes according to claim 2, wherein: the lower die is also provided with a rotary transmission assembly positioned between two adjacent rotary thread forming assemblies and a rotary transmission assembly matched with the driving rack to drive one of the rotary assemblies at the extreme end to rotate.

4. The one-shot forming die of a product with a threaded hole according to claim 3, wherein: the rotating assembly comprises a first rotating shaft, a first gear and a connecting sleeve, wherein the first rotating shaft and the first gear are rotatably arranged in the lower die, the first gear is fixedly arranged on the first rotating shaft, and the connecting sleeve is fixed at the end part of the first rotating shaft and is used for being connected with the thread forming block.

5. The one-step forming die for products with threaded holes according to claim 4, wherein: the screw thread is arranged at the other end of the first rotating shaft and matched with the internal thread hole of the nut sleeve, and the linear motion of the first rotating shaft is realized through the rotation of the first rotating shaft.

6. The one-step forming die for products with threaded holes according to claim 4, wherein: the rotary transmission assembly comprises second gears which are in meshing transmission with the first gears in the two adjacent rotary assemblies, the second gears are fixed on a second rotating shaft, and two ends of the second rotating shaft are rotatably arranged in the lower die through bearings.

7. The one-step forming die for products with threaded holes according to claim 4, wherein: the rotation transmission assembly comprises a third rotating shaft and a fixed sleeve, wherein the third rotating shaft and the fixed sleeve are rotatably arranged in the lower die through a bearing, the third rotating shaft is arranged on the third rotating shaft and meshed with the first gear at the most end part, and the fixed sleeve is arranged on the third rotating shaft and meshed with the driving rack.

8. The one-step forming die for products with threaded holes according to claim 4, wherein: and the lower die is also provided with a limit groove which is matched with the connecting sleeve to form screw-in limit.

9. The one-step forming die for products with threaded holes according to claim 1, wherein: the outer peripheral surface of the nut sleeve is provided with an annular anti-skidding toothed ring, so that the nut sleeve is prevented from rotating and dislocating, the linear moving distance of the thread forming block is changed, and the forming precision of a product is influenced.