CN214720418U

CN214720418U - Forging die for duplicate gear blank

Info

Publication number: CN214720418U
Application number: CN202120853886.XU
Authority: CN
Inventors: 杨俊润
Original assignee: Chongqing Chunrun Machinery Manufacturing Co ltd
Current assignee: Chongqing Chunrun Machinery Manufacturing Co ltd
Priority date: 2021-04-25
Filing date: 2021-04-25
Publication date: 2021-11-16
Anticipated expiration: 2031-04-25

Abstract

The utility model belongs to the technical field of duplicate gear forging dies, and discloses a die for duplicate gear blank forging, which comprises a base, wherein a fixed die and a threaded rod are arranged above the base, a movable die is arranged above the fixed die, a top cover is arranged above the movable die, the top cover is fixedly connected with the movable die, through holes are arranged on both sides of the upper surface wall of the top cover, two through holes are internally provided with threaded columns, nuts are welded above the threaded columns, and limit rings are welded below the threaded columns, the utility model is provided with the threaded columns, the nuts are arranged above the threaded columns, the limit rings are arranged below the threaded columns, threaded grooves are arranged inside the threaded columns, when in use, the nuts are welded above the threaded columns, and are placed into the through holes, and the limit rings are welded below the threaded columns, so as to form a nut structure, and the nut mechanism is always positioned in the through hole and cannot fall off, so that the problem that the nut is easy to lose is avoided.

Description

Forging die for duplicate gear blank

Technical Field

The utility model belongs to the technical field of duplicate gear forges mould, concretely relates to be used for duplicate gear blank to forge mould.

Background

Gears are of great importance in industry, and many machines need gears, including duplicate gears, which cannot be directly machined due to the unevenness of the gear structure during manufacturing, so that a mold is usually used to manufacture the approximate appearance of the duplicate gears, and then the duplicate gears are polished to meet the precision requirement.

But at present when using the mould of making the duplicate gear, the nut that is used for fixed movable mould and cover half loses easily, consequently often needs to carry out the condition of supplementing the fixation nut, this certain nut material that can waste, and because gear table wall structure is complicated, the mould that the movable mould cover half was run from opposite directions can produce deckle edge on the gear surface when using, place the die cavity completely at the cover half and then can solve this problem, but behind the cover half was put into completely to the die cavity, need whole the inversion of cover half when the drawing of patterns, gravity is great, the staff produces fatigue easily, is unfavorable for long-time production.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a be used for duplicate gear blank to forge mould to solve the easy tired problem that produces of the condition and the during drawing of patterns that the nut lost when using of current mould easily.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a be used for duplicate gear blank to forge mould, includes the base, cover half and threaded rod are installed to the top of base, and the top of cover half is provided with the movable mould, the top of movable mould is provided with the top cap, top cap and movable mould fixed connection, and the both sides of top cap upper surface wall have all seted up the perforation, two the fenestrate inside all is provided with the screw thread post, and the top welding of screw thread post has the nut, the below welding of screw thread post has the spacing ring.

Preferably, two the thread groove has all been seted up to the inside of screw thread post, the threaded rod is provided with two altogether, and two threaded rods distribute along the axis bilateral symmetry of cover half, threaded rod and thread groove phase-match.

Preferably, the standing groove has been seted up to the upper surface wall of cover half, and the inside of standing groove is provided with places the piece, the gear die cavity has been seted up to the upper surface wall of placing the piece, two pull rings are installed altogether to the top of placing the piece, and two pull rings are along the axis bilateral symmetry distribution of placing the piece.

Preferably, the top of cover half is installed spacing post, and spacing post is provided with four altogether, four spacing post is distributed along the mid point department of cover half is the annular array, four spacing post all with cover half fixed connection.

Preferably, four limiting grooves and two annular grooves are formed in the lower surface wall of the movable die, the limiting grooves are matched with the limiting columns, and the annular grooves are matched with the pull rings.

Preferably, the top cover and the movable die are both provided with liquid injection ports, and the liquid injection ports penetrate through the top cover and the lower surface wall of the movable die from the upper surface wall of the top cover to extend to the lower surface wall of the movable die.

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

(1) the utility model discloses set up the screw thread post, and the nut has been installed to the top of screw thread post, and the spacing ring has been installed to the below of screw thread post, and the thread groove has been seted up to the inside of screw thread post, during the use, in the top welding nut of screw thread post, put into the perforation with it, then at the below welding spacing ring of screw thread post to this constitution nut structure, and nut constructs to be located the perforation all the time, can not drop, has avoided the easy problem of losing of nut.

(2) The utility model discloses seted up the standing groove in the inside of cover half, and the inside of standing groove has set up places the piece, and the gear die cavity is located places the piece, after the melt cooling in the gear die cavity, takes off the movable mould, then handheld pull ring takes off and places the piece, inverts and places the piece and makes the inside gear drawing of patterns under the effect of gravity, need not overturn whole cover half, has reduced staff's intensity of labour, slows down its fatigue rate.

Drawings

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

fig. 2 is a side view of the threaded post of the present invention;

fig. 3 is a side view of the present invention;

FIG. 4 is a top view of the stationary mold of the present invention;

in the figure: 1. a nut; 2. a thread groove; 3. a threaded post; 4. a limiting ring; 5. a threaded rod; 6. a base; 7. fixing a mold; 8. a gear die cavity; 9. placing the blocks; 10. a placement groove; 11. a pull ring; 12. a limiting column; 13. a limiting groove; 14. perforating; 15. moving the mold; 16. a ring groove; 17. a liquid injection port; 18. and a top cover.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides the following technical solutions: the utility model provides a be used for duplicate gear blank to forge mould, the on-line screen storage device comprises a base 6, cover half 7 and threaded rod 5 are installed to the top of base 6, and the top of cover half 7 is provided with movable mould 15, the top of movable mould 15 is provided with top cap 18, top cap 18 and movable mould 15 fixed connection, and the both sides of top cap 18 upper surface wall have all been seted up and have been perforated 14, the inside of two perforation 14 all is provided with screw post 3, and the top welding of screw post 3 has nut 1, the below welding of screw post 3 has spacing ring 4, screw post 3, nut 1 and spacing ring 4 constitute the nut structure jointly, the nut structure passes through nut 1 of top and the spacing ring 4 card of below in perforation 14, can the rotation in perforation 14, when matcing threaded rod 5, communicate base 6 together upwards pulling with threaded rod 5.

Further, thread groove 2 has all been seted up to the inside of two screw posts 3, and threaded rod 5 is provided with two altogether, and two threaded rods 5 distribute along the axis bilateral symmetry of cover half 7, and threaded rod 5 and thread groove 2 phase-matches make movable mould 15 and cover half 7 together fixed through closing soon of threaded rod 5 and screw post 3, avoid producing the gap between movable mould 15 and the cover half 7.

Furthermore, the standing groove 10 has been seted up to the upper surface wall of cover half 7, and the inside of standing groove 10 is provided with places piece 9, and the volume of placing piece 9 is less than the volume of standing groove 10, and is square structure, avoids placing the condition of piece 9 internal rotation in standing groove 10, and the upper surface wall of placing piece 9 has been seted up gear die cavity 8, and two pull rings 11 are installed altogether to the top of placing piece 9, and two pull rings 11 distribute along the axis bilateral symmetry who places piece 9.

Specifically, spacing post 12 is installed to the top of cover half 7, and spacing post 12 is provided with four altogether, and spacing post 12 card is the state that movable mould 15 and cover half 7 aimed at each other when going into spacing groove 13, and spacing cover half 7 and movable mould 15 after the block, prevents to rotate each other, and four spacing posts 12 are distributed along the midpoint department of cover half 7 and are the annular array, and four spacing posts 12 all are with cover half 7 fixed connection.

It is worth to be noted that the lower surface wall of the movable mold 15 is provided with four limiting grooves 13 and two ring grooves 16, the ring grooves 16 are located at the middle position of the lower surface wall of the movable mold 15, the limiting grooves 13 are located at the edge of the lower surface wall of the movable mold 15, the limiting grooves 13 are matched with the limiting columns 12, and the ring grooves 16 are matched with the pull rings 11.

Further, the liquid filling port 17 has all been seted up to the inside of top cap 18 and movable mould 15, and it is the same to annotate liquid mouthful 17 internal diameter, avoids the excessive back of injecting of melt, because the injection port internal diameter is inhomogeneous and the condition that can't the drawing of patterns appears, and annotates liquid mouthful 17 and run through top cap 18 and movable mould 15 by the upper surface wall of top cap 18 and extend to the lower table wall of movable mould 15.

The utility model discloses a theory of operation and use flow: when the utility model is used, the placing block 9 is placed in the placing groove 10, then the top cover 18 and the movable die 15 are covered above the fixed die 7, so that the interior of the gear die groove 8 is sealed, in the sealing process, the threaded rod 5 is placed at the bottom end of the threaded groove 2, then the nut 1 is rotated, under the action of the threaded structure and the spacing ring 4, the threaded rod 5 and the base 6 thereof are moved upwards until the spacing column 12 is clamped into the spacing groove 13, the pull ring 11 is clamped into the annular groove 16, the movable die 15 and the fixed die 7 are completely contacted, sufficient molten liquid is injected from the liquid injection port 17, the molten liquid reaches the gear die groove 8, the gear die groove 8 is filled, the molten liquid becomes the shape of the gear die groove 8, after the molten liquid is cooled, the nut 1 is rotated in the opposite direction, the threaded rod 5 and the threaded column 3 are separated, then the placing block 9 is taken out through the pull ring 11, the placing block 9 is placed upside down, the solidified molten liquid falls under the action of gravity, the demoulding operation is completed, the whole fixed die 7 does not need to be inverted in the process, the working strength is reduced, and the upper side and the lower side of the threaded column 3 are limited by the nut 1 and the limiting ring 4 respectively, so that the threaded column 3 cannot fall off from the through hole 14, and the phenomenon that the fixing nut is lost is avoided.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a be used for duplicate gear blank to forge mould, includes base (6), its characterized in that: cover half (7) and threaded rod (5) are installed to the top of base (6), and the top of cover half (7) is provided with movable mould (15), the top of movable mould (15) is provided with top cap (18), top cap (18) and movable mould (15) fixed connection, and the both sides of top cap (18) upper watch wall have all seted up perforation (14), two the inside of perforation (14) all is provided with screw thread post (3), and the top welding of screw thread post (3) has nut (1), the below welding of screw thread post (3) has spacing ring (4).

2. The die for forging the duplicate gear blank according to claim 1, wherein: two thread groove (2) have all been seted up to the inside of screw thread post (3), threaded rod (5) are provided with two altogether, and two threaded rods (5) distribute along the axis bilateral symmetry of cover half (7), threaded rod (5) and thread groove (2) phase-match.

3. The die for forging the duplicate gear blank as claimed in claim 2, wherein: the upper surface wall of cover half (7) has been seted up standing groove (10), and the inside of standing groove (10) is provided with places piece (9), the upper surface wall of placing piece (9) has been seted up gear die cavity (8), place the top of piece (9) and install two pull rings (11) altogether, two pull rings (11) are along the axis bilateral symmetry distribution of placing piece (9).

4. A die for forging a duplicate gear blank according to claim 3, wherein: spacing post (12) are installed to the top of cover half (7), and are provided with four, four altogether in spacing post (12) the mid point department along cover half (7) is the annular array and distributes, four spacing post (12) all with cover half (7) fixed connection.

5. The die for forging the duplicate gear blank according to claim 4, wherein: four limiting grooves (13) and two annular grooves (16) have been seted up altogether to the lower surface wall of movable mould (15), limiting groove (13) and spacing post (12) phase-match, annular groove (16) and pull ring (11) phase-match.

6. The die for forging the duplicate gear blank according to claim 5, wherein: liquid filling openings (17) are formed in the top cover (18) and the movable die (15), and the liquid filling openings (17) penetrate through the top cover (18) and the lower wall of the movable die (15) from the upper wall of the top cover (18) and extend to the lower wall of the movable die (15).