CN216096226U - Oil pump gear shaft forging die - Google Patents

Abstract

The utility model discloses an oil pump gear shaft forging die which comprises an upper die and a lower die, wherein the upper die and the lower die are respectively provided with a forming module with the same shape and structure, the back sides of the upper die and the lower die are respectively provided with a pouring runner communicated with an inner cavity of the forming module, the inner walls of the forming modules are respectively and fixedly connected with a plurality of inserts with the same structure, the bottom surface of the upper die and the upper surface of the lower die are respectively provided with a die withdrawing groove, and the inner part of the upper die and the inner part of the lower die are jointly clamped with a positioning ring. The positioning ring can play a role in alignment, so that the position of the pouring runner is consistent with that of the material nozzle, and the aim of replacing a mold lock catch is fulfilled, so that the purpose of saving mold materials is fulfilled; the pouring channel is matched with the forming module, so that the function of reducing the flow channel can be achieved, the aim of directly pouring a single flow channel into the forming module is fulfilled, and the problem that materials are wasted in the flow channel due to excessive flow channels is solved; through moving back the die cavity, can play the effect of convenient drawing back of the mould, avoid the overheated and unable problem of taking out of gear shaft forging.

Description

Oil pump gear shaft forging die

Technical Field

The utility model relates to the technical field of oil pumps, in particular to a forging die for a gear shaft of an oil pump.

Background

The oil pump is a light and compact pump, there are three major types of in-line type, distribution type and monomer type, the oil pump can be operated only with the power source, its lower camshaft is driven by the engine gear shaft, the gear shaft supports the rotating part and rotates with it to transmit the movement, the gear shaft is generally a metal round bar, each section can have different diameters, usually adopt and forge the mould to make, forge the mould and is the necessary key technological equipment in the production of die forging, it is the tool that the apparatus needs to use each stroke, play the role of lifting the weight in the production of die forging, forge the mould and use the mould in the course of forging technology, the raw materials produce the plastic deformation in the forging die under the influence of external force, thus get the part of the required shape and size.

The existing oil pump gear shaft generally adopts a closed forging die which is usually provided with a plurality of runners, the runners enter the die cavities again, the longer the runners are, the larger the loss of materials is, the materials are not saved, and the manufacturing cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a forging die for an oil pump gear shaft, which saves forging materials and avoids material loss.

The utility model discloses an oil pump gear shaft forging die which adopts the technical scheme that:

oil pump gear shaft forges mould, including last mould and lower mould, go up mould and lower mould and all set up the shaping module that the shape structure is the same, go up the runner that waters that intercommunication shaping module inner chamber was all set up to mould dorsal part and lower mould dorsal part, the equal fixedly connected with a plurality of structure of the inner wall of shaping module is the same inserts, goes up mould bottom surface and lower mould upper surface and has all seted up the die cavity that moves back, goes up the inside common joint of mould and lower mould and has the location ring.

As the preferred scheme, the inner wall of the die withdrawing groove is movably connected with the outer surface of the forming module, a closing plate is clamped on one side of the die withdrawing groove, which is far away from the forming module, and a pull rod is fixedly connected to the front side of the closing plate.

Preferably, the center of the positioning circular ring is provided with a through hole which is communicated with the pouring channel, and the through hole is in contact with one end of the pouring channel, which is far away from the molding module.

According to the preferable scheme, the back sides of the upper die and the lower die are provided with a set of two threaded holes, the inner wall of each threaded hole is in threaded connection with a screw rod, one end of the screw rod penetrating through the threaded holes is in contact with the back side of the forming module, and one end of the screw rod far away from the forming module is fixedly connected with a knob.

As preferred scheme, go up the mould bottom surface and the lower mould upper surface and all set up about two slots, the slot is seted up in the shaping module outside, goes up the slot of mould bottom surface and the slot of lower mould upper surface upper position correspondence from top to bottom, and the joint key is connected to the inside joint jointly of a set of slot that corresponds from top to bottom.

According to the preferable scheme, through holes are formed in the left side and the right side of the upper surface of the upper die, fixing columns are movably connected to the inner walls of the through holes, nuts are connected to the outer surfaces of the fixing columns exposed out of the upper ends of the through holes in a threaded mode, and the bottom ends of the fixing columns exposed out of the lower ends of the through holes are fixedly connected with the upper surface of the lower die.

Preferably, the upper surface of the lower die is provided with a thread groove matched with the fixing column, and the fixing column is in threaded connection with the upper surface of the lower die.

Preferably, the left side wall and the right side wall of the upper die are both fixedly connected with handles.

According to the utility model, the positioning ring can play a role of alignment, so that the positions of the pouring flow channel and the material nozzle are consistent, the purpose of saving the mold material is achieved by replacing the mold lock catch, the problem of waste of pouring material caused by inconsistent positions of the pouring flow channel and the material nozzle is avoided, and the effect of reducing material leakage at the joint of the nozzle and the pouring flow channel is facilitated; the pouring channel is matched with the forming module, so that the function of reducing the flow channel can be achieved, the aim of directly pouring a single flow channel into the forming module is fulfilled, and the problem that materials are wasted in the flow channel due to excessive flow channels is solved; the insert can play a role in reducing the volume of the inner cavity of the molding module, so that the purpose of reducing die materials is realized, and the problem that the gear shaft cannot be integrally processed and needs to be processed twice is avoided; through moving back the die cavity, can play the effect of convenient drawing back of the mould, avoid the overheated and unable problem of taking out of gear shaft forging.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a sectional structural view of the present invention.

Fig. 3 is a cross-sectional view of a top view of the lower die of the present invention.

Fig. 4 is a cross-sectional view of a side view of the present invention.

In the figure: 1. a lower die; 2. a closing plate; 3. a pull rod; 4. an upper die; 5. a nut; 6. a handle; 7. fixing a column; 8. a through hole; 9. a connecting bond; 10. a slot; 11. forming a module; 12. a threaded hole; 13. a screw; 14. an insert; 15. removing the die cavity; 16. a knob; 17. positioning the circular ring; 18. and (4) pouring a runner.

Detailed Description

The utility model will be further elucidated and described with reference to the embodiments and drawings of the specification:

referring to fig. 1-4, as shown in the figure, the oil pump gear shaft forging die comprises an upper die 4 and a lower die 1, wherein the upper die 4 and the lower die 1 are both provided with a forming module 11 with the same shape and structure, the back side of the upper die 4 and the back side of the lower die 1 are both provided with a pouring channel 18 communicated with the inner cavity of the forming module 11, the inner wall of the forming module 11 is fixedly connected with a plurality of inserts 14 with the same structure, the bottom surface of the upper die 4 and the upper surface of the lower die 1 are both provided with a die withdrawing groove 15, and the inner part of the upper die 4 and the inner part of the lower die 1 are jointly clamped with a positioning ring 17.

The upper die 4 is matched with the lower die 1, so that the connection and matching effects can be achieved, and the purpose of die forging is achieved; the pouring flow channel 18 can play a role in pouring forging liquid, so that the problem of material loss caused by a plurality of flow channels is avoided; the insert 14 can save material and avoid the problem of re-machining gear teeth of the gear shaft.

Wherein, the inner wall of demolding groove 15 and the surface swing joint of shaping module 11, the one side joint that keeps away from the shaping module of demolding groove 15 has closing plate 2, the front fixedly connected with pull rod 3 of closing plate 2.

The die withdrawing groove 15 can play a role of facilitating the withdrawing of the forming module 11, and the problem that the forming module 11 needs to be clamped from the die is avoided; through the cooperation of closing plate 2 and pull rod 3, can play the effect of closed mould, the problem that the air produced the influence to the forging when avoiding the mould to forge.

Wherein, the center of the positioning ring 17 is provided with a through hole which passes through the pouring channel 18, and the through hole is arranged in contact with one end of the pouring channel 18 far away from the molding module 11.

Through the positioning ring 17, the positioning function can be achieved, and the problem that the positions of the pouring channel 18 and the nozzle are not aligned is avoided.

Wherein, go up the dorsal part of mould 4 and all offer a set of two screw hole 12 with lower mould 1 dorsal part, the equal threaded connection of inner wall of every screw hole 12 has screw rod 13, and screw rod 13 runs through into the one end of screw hole 12 and contacts with the dorsal part of shaping module 11, and screw rod 13 keeps away from the one end fixedly connected with knob 16 of shaping module 11.

The threaded hole 12 is matched with the screw 13, so that the forming module 11 can be pushed out, and the problem that the forming module 11 is directly contacted by hands is avoided; the knob 16 can facilitate the rotation of the screw 13, thereby avoiding the problem that the screw 13 is difficult to rotate.

Wherein, go up the slot 10 of two about all seting up of mould 4 bottom surface and lower mould 1 upper surface, the slot 10 is seted up in the shaping module 11 outside, goes up the slot 10 of mould 4 bottom surface and the slot 10 upper and lower position of the 1 upper surface of lower mould and corresponds, and the joint key 9 has been blocked jointly to a set of slot 10 inside that corresponds from top to bottom.

The slot 10 and the connecting key 9 are matched, so that the upper die 4 and the lower die 1 can be connected, and the upper die 4 and the lower die 1 can be positioned.

Wherein, go up the left and right sides of the upper surface of mould 4 and seted up through- hole 8, 8 inner walls swing joint of through-hole have fixed column 7, expose 7 outer surface threaded connection of fixed column of through-hole 8 upper ends have nut 5, expose 7 bottom of fixed column of through-hole 8 lower extreme and the upper surface fixed connection of lower mould 1.

Wherein, the upper surface of lower mould 1 is seted up with fixed column 7 complex thread groove, fixed column 7 passes through threaded connection with the upper surface of lower mould 1.

The through hole 8 can play a role in installing the fixing column 7, and is beneficial to fixing the upper die 4 and the lower die 1; cooperate through fixed column 7 and nut 5, can play the effect of fastening last mould 4 and lower mould 1, the steam that produces when avoiding forging causes the problem of rocking to the mould.

Wherein, the left and right side walls of the upper die 4 are fixedly connected with handles 6.

Through handle 6, can play the effect of conveniently moving last mould 4, avoid being difficult to operate the problem of last mould 4.

The working principle of the utility model is as follows; firstly, when a gear shaft needs to be forged, an upper die 4 is covered on a lower die 1 by a handle 6, the upper die 4 is aligned to a connecting key 9, the connecting key 9 is used for connecting the upper die 4 and the lower die 1, the lower die 1 and the upper die 4 are fastened by a nut 5, a forming module 11 is installed on the upper die 4 and the lower die 1, a pouring channel 18 is aligned to a material nozzle by using a positioning ring 17, the pouring channel 18 is directly communicated with the forming module 11, the flow channel is reduced in the die, so that the waste generated in the material circulation in the flow channel is saved, the upper die 4 and the lower die 1 are positioned by the positioning ring 17, and the transition fit is adopted, so that the lock catch frequently adopted by die guiding can be eliminated, the size of the die is increased, the material cost of the die is increased, the shaft and the gear teeth of the gear shaft need to be processed twice, the insert 14 is matched with the forming module 11, the processing material of the gear shaft is reduced, the forging efficiency is improved, and after the gear shaft is formed in the forming module 11, the forming module 11 in the forging die is very high in temperature and cannot be touched by hands, the sealing plate 2 is pulled out of the die cavity 15, and then the forming module 11 is ejected out of the die cavity 15 by the screw 13.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims (8)

1. Oil pump gear shaft forges mould, including last mould (4) and lower mould (1), go up mould (4) and lower mould (1) and all offer the same forming module (11) of shape structure, its characterized in that: go up mould (4) dorsal part and lower mould (1) dorsal part and all set up the runner (18) that waters that communicates forming module (11) inner chamber, the equal fixedly connected with a plurality of structure of inner wall of forming module (11) inserts (14) the same, go up mould (4) bottom surface and lower mould (1) upper surface and all seted up and move back die cavity (15), go up inside and the inside joint jointly of lower mould (1) of mould (4) and have location ring (17).

2. The oil pump gear shaft forging die of claim 1, wherein: move back the inner wall of die cavity (15) and the surface swing joint of shaping module (11), move back one side joint that keeps away from the shaping module of die cavity (15) and have closing plate (2), the front fixedly connected with pull rod (3) of closing plate (2).

3. The oil pump gear shaft forging die of claim 1, wherein: the center of the positioning circular ring (17) is provided with a through hole which is communicated with the pouring runner (18), and the through hole is arranged in contact with one end of the pouring runner (18) far away from the molding module (11).

4. The oil pump gear shaft forging die of claim 1, wherein: go up mould (4) dorsal part and lower mould (1) dorsal part and all set up a set of two screw hole (12), the equal threaded connection of inner wall of every screw hole (12) has screw rod (13), and screw rod (13) run through into the one end of screw hole (12) and contact with the dorsal part of shaping module (11), and one end fixedly connected with knob (16) of shaping module (11) are kept away from in screw rod (13).

5. The oil pump gear shaft forging die of claim 1, wherein: go up mould (4) bottom surface and lower mould (1) upper surface and all set up about two slot (10), slot (10) are seted up in the shaping module (11) outside, go up slot (10) of mould (4) bottom surface and lower mould (1) upper surface slot (10) upper and lower position correspondence, and the joint key (9) are connected to the joint jointly in a set of slot (10) inside that corresponds from top to bottom.

6. The oil pump gear shaft forging die of claim 1, wherein: through-hole (8) have been seted up to the left and right sides of the upper surface of last mould (4), and through-hole (8) inner wall swing joint has fixed column (7), and fixed column (7) surface screw thread that exposes through-hole (8) upper end has nut (5), exposes fixed column (7) bottom and the upper surface fixed connection of lower mould (1) of through-hole (8) lower extreme.

7. The oil pump gear shaft forging die of claim 6, wherein: the upper surface of the lower die (1) is provided with a thread groove matched with the fixing column (7), and the fixing column (7) is in threaded connection with the upper surface of the lower die (1).

8. The oil pump gear shaft forging die of claim 1, wherein: the left side wall and the right side wall of the upper die (4) are fixedly connected with handles (6).

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