CN210475214U

CN210475214U - Gear ring mold

Info

Publication number: CN210475214U
Application number: CN201921250548.6U
Authority: CN
Inventors: 蔡济宇
Original assignee: Zhejiang Lingyu Machinery Ltd By Share Ltd
Current assignee: Zhejiang Lingyu Machinery Ltd By Share Ltd
Priority date: 2019-08-05
Filing date: 2019-08-05
Publication date: 2020-05-08
Anticipated expiration: 2029-08-05

Abstract

The utility model relates to a technical field of punching press production, wherein disclose a ring gear mould, it is including setting up on the punching machine and relative movement's last mould and lower mould, the upper end of lower mould is provided with the shaping cutter that is used for processing whole outline, the shaping groove that is used for joining in marriage shaping cutter is offered to the lower extreme of going up the mould, the tank bottom in shaping groove is provided with the central cutter that is used for processing the centre bore, is used for processing the ear cutter of mounting hole and is used for processing the circumference cutter in circumference hole, the circumference groove that is used for cooperating the central groove of central cutter, is used for cooperating the ear groove of ear cutter and is used for cooperating the circumference cutter is offered to the upper end of shaping cutter. The utility model discloses have panel and place between last mould and lower mould, go up the mould and once can accomplish the processing of ring gear with the lower mould punching press, need not to divide three processes to process, avoid many times to fix a position and influence the relative position precision in whole outline, centre bore and circumference hole, guarantee the effect of the production machining precision of ring gear.

Description

Gear ring mold

Technical Field

The utility model belongs to the technical field of the technique of punching press production and specifically relates to a ring gear mould is related to.

Background

The punching machine is a device for performing press working on a material, and the working principle of the punching machine is that a machine tool drives an upper die and a lower die to open and close under the action of punching power so as to cut, punch, stretch and the like the raw material between the dies, thereby forming a punching part.

Referring to fig. 1, the ring gear includes that an organic whole sets up to be annular body and along the otic placode of circumference interval setting in the body periphery, has seted up the circumference hole along the circumference interval on the body, has seted up the mounting hole on the otic placode.

When a punching machine is used for producing the gear ring, the first set of die is generally used for punching the whole outline of the gear ring on a raw material to produce a plate-shaped stamping part, then the second set of die is used for machining a central hole and a mounting hole on the plate-shaped stamping part to produce an annular stamping part, and finally the third set of die is used for machining a circumferential hole on the annular stamping part to complete the production of the gear ring.

The above prior art solutions have the following drawbacks: when the plate stamping parts are placed on the second set of die and the annular stamping parts are placed on the third set of die, the plate stamping parts need to be repositioned, and in order to guarantee large-batch production, the positions of parts to be machined are not calibrated in too much time so as to be accurately positioned, so that the relative position precision of the whole outline, the central hole and the circumferential hole is influenced, and the machining precision of the gear ring is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a ring gear mould goes up the processing that the ring gear can once be accomplished in mould and lower mould punching press, need not to divide three processes to process, avoids many times to fix a position and influences the relative position precision in whole outline, centre bore and circumference hole, guarantees the production machining precision of ring gear.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a ring gear mould, is including setting up on the punching machine and relative movement's last mould and lower mould, the upper end of lower mould is provided with the shaping cutter that is used for processing whole outline, the shaping groove that is used for joining in marriage shaping cutter is offered to the lower extreme of going up the mould, the tank bottom in shaping groove is provided with the central cutter that is used for processing the centre bore, is used for processing the ear cutter of mounting hole and is used for processing the circumference cutter in circumference hole, the circumference groove that is used for cooperating the central groove of cutter, is used for cooperating the ear groove of ear cutter and is used for cooperating the circumference cutter is offered to the upper end of shaping.

Through adopting above-mentioned technical scheme, add man-hour, place panel between last mould and lower mould, mould and lower mould relative movement are gone up in the punching machine drive, panel receives the effect of shaping cutter, center cutter, ear's cutter and circumference cutter between last mould and lower mould, realizes going up the mould and once can accomplishing the processing of ring gear with the lower mould punching press, need not to divide three processes to process, avoids many times to fix a position and influences whole outline, the relative position precision in centre bore and circumference hole, guarantees the production machining precision of ring gear.

The utility model discloses further set up to: the lower extreme of circumference cutter and the lower extreme parallel and level of ear's cutter, just the lower extreme of circumference cutter is not parallel and level with the lower extreme of center cutter.

By adopting the technical scheme, the circumferential hole and the mounting hole are simultaneously machined on the plate, and the time difference exists between the circumferential hole and the machining center hole, so that the center hole, the circumferential hole and the mounting hole are machined step by step in the process of machining the gear ring on the upper die and the lower die, the extrusion force between the upper die and the lower die during single punching is reduced, and the high-power punching machine does not need to be replaced.

The utility model discloses further set up to: the distance between the end surface of the lower end of the circumferential cutter and the bottom of the forming groove is smaller than the distance between the end surface of the lower end of the central cutter and the bottom of the forming groove.

Through adopting above-mentioned technical scheme, the terminal surface area of center cutter is great, and the terminal surface area of circumference cutter and ear's cutter is less, therefore the distance between the terminal surface of center cutter lower extreme and the tank bottom in shaping groove is longer, avoids circumference cutter and ear's cutter to adopt the slender rod structure, and circumference cutter and ear's cutter are crooked and make the mould can't use when avoiding batch production, guarantee the machining precision of ring gear and the life of mould.

The utility model discloses further set up to: the distance between the end surface of the lower end of the central cutter and the bottom of the forming groove is smaller than the groove depth of the forming groove.

By adopting the technical scheme, the length of the central cutter, the circumferential cutters and the ear cutters extending out of the bottom of the forming groove is shortened, a long and thin rod structure is prevented from being formed, and the machining precision of the gear ring is ensured; meanwhile, the central cutter, the circumferential cutters and the ear cutters are prevented from being deformed due to impact when extending out of the lower end of the upper die and feeding and discharging, and the machining precision of the gear ring is guaranteed.

The utility model discloses further set up to: the lower end of the lower die is provided with a blanking hole, and the upper end of the blanking hole is communicated with the central groove, the lug grooves and the circumferential grooves.

Through adopting above-mentioned technical scheme, the waste material after cutting out centre bore, circumference hole and mounting hole on panel directly falls into the blanking hole to pile up together, make things convenient for personnel to collect and handle the waste material.

The utility model discloses further set up to: the bottom of the forming groove is provided with a material pressing groove, the material pressing groove extends along the moving direction of the upper die, a material pressing rod is embedded in the material pressing groove in a sliding mode, the end portion, extending out of the material pressing groove, of the material pressing rod abuts against a plate, and when the upper die is separated from the lower die, the end portion, extending out of the material pressing groove, of the material pressing rod is flush with the lower end of the upper die.

By adopting the technical scheme, during processing, the upper die moves downwards, the material pressing rod abuts against the plate, the upper die continues to move downwards, the material pressing rod moves upwards relative to the upper die, and meanwhile, the material pressing rod always abuts against the plate, so that the central position of the plate is prevented from being concave and the periphery of the plate is prevented from tilting in the process of punching the central hole, and the production processing precision of the gear ring is ensured; after the processing is finished, the upper die moves upwards, the material pressing rod moves downwards relative to the upper die, and the plate is separated from the forming groove under the pushing of the material pressing rod, so that the subsequent manual blanking or automatic blanking is facilitated.

The utility model discloses further set up to: the end part of the material pressing rod extending into the material pressing groove is provided with a piston, an oil cavity is formed between the end face of the piston far away from the material pressing rod and the inner wall of the material pressing groove, an oil way communicated with the material pressing groove is formed in the upper die, an overflow valve is connected onto the oil way, and one end, far away from the oil cavity, of the oil way is connected with an oil supply device.

By adopting the technical scheme, the oil supply equipment provides hydraulic oil with certain pressure to the oil path and the oil cavity through the overflow valve, when in processing, the upper die moves downwards, the pressing rod abuts against the plate, the upper die moves downwards continuously, the pressing rod moves upwards relative to the upper die, the working volume of the oil cavity is reduced, the oil pressure in the oil cavity and the oil path is increased, the hydraulic oil in the oil cavity and the oil path pushes the overflow valve away, and the overflow valve is used for oil drainage and pressure stabilization at the moment and ensures that the pressure of the pressing rod on the plate is; after the machining is finished, the upper die moves upwards, the material pressing rod moves downwards relative to the upper die, the working volume of the oil cavity is increased, the oil pressure in the oil cavity and the oil channel is reduced, the overflow valve is closed, the oil supply equipment supplies oil to the oil channel and the oil cavity, so that the oil pressure in the oil cavity and the oil channel is increased to the limit value of the overflow valve, and the overflow valve is used for limiting the oil pressure in the oil cavity and the oil channel.

The utility model discloses further set up to: the tip that presses the material pole to stretch out to press the silo is provided with presses the flitch, press the periphery of flitch and the inner wall butt in shaping groove, set up the center that supplies central cutter to pass on pressing the flitch and dodge the hole, supply the ear that the ear cutter passed to dodge the hole and supply the circumference that the circumference cutter passed to dodge the hole.

Through adopting above-mentioned technical scheme, the pressure flitch is used for increasing the area of contact between pressure pole and the panel, avoids pressing the pressure pole to leave the indentation on panel, guarantees the surface production quality of ring gear.

To sum up, the utility model discloses a beneficial technological effect does:

1. the gear ring can be machined by stamping the upper die and the lower die once without three working procedures, so that the influence on the relative position precision of the whole outline, the central hole and the circumferential hole due to multiple positioning is avoided, and the production machining precision of the gear ring is ensured;

2. in the processing process, the pressure plate always supports against the plate and has stable extrusion force, so that the bending deformation of the plate in the punching process is avoided, and the processing precision of the gear ring is further ensured.

Drawings

Fig. 1 is a schematic view of the structure of a ring gear.

Fig. 2 is a schematic view of the overall structure of the present invention.

Fig. 3 is a sectional structure diagram of the lower mold.

Fig. 4 is a schematic view of an exploded structure of the upper mold.

Fig. 5 is a sectional structure diagram of the upper mold.

In the figure, 0, ring gear; 01. a body; 02. an ear plate; 03. a circumferential hole; 04. mounting holes; 05. overall profile; 06. a central bore; 1. an upper die; 11. forming a groove; 12. a center cutter; 13. an ear cutter; 14. a circumferential cutter; 15. a material pressing groove; 16. a material pressing component; 161. a piston; 162. a material pressing rod; 163. a material pressing plate; 164. a central avoidance hole; 165. an ear avoidance hole; 166. circumferentially avoiding holes; 17. an oil path; 18. an overflow valve; 2. a lower die; 21. forming a cutter; 22. a central slot; 23. an ear slot; 24. a circumferential groove; 25. and (7) blanking holes.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 2, for the utility model discloses a gear ring mold, including setting up on the punching machine and relative movement's last mould 1 and lower mould 2, the upper end of lower mould 2 (refer to fig. 3) is provided with the shaping cutter 21 that is used for processing whole profile 05, the lower extreme of going up mould 1 (refer to fig. 4) is offered and is used for joining in marriage shaping groove 11 of shaping cutter 21, the tank bottom of shaping groove 11 is provided with central cutter 12 that is used for processing centre bore 06, ear's cutter 13 that is used for processing mounting hole 04 and the circumference cutter 14 that is used for processing circumference hole 03, the upper end of shaping cutter 21 is offered and is used for cooperating central groove 22 of central cutter 12, ear's groove 23 that is used for cooperating ear's cutter 13 and the circumference groove 24 that is used for cooperating circumference cutter 14, in man-hour, place panel between last mould 1 and lower mould 2, the punching machine drives last mould 1 and lower mould 2, The effect of central cutter 12, ear's cutter 13 and circumference cutter 14 realizes going up mould 1 and 2 punching presses of lower mould and can accomplishing the processing of ring gear 0 once, need not to divide three processes and process, avoids many times the location and influences the relative position precision of whole outline 05, centre bore 06 and circumference hole 03, guarantees the production machining precision of ring gear 0.

Referring to fig. 4 and 5, a material pressing groove 15 is formed at the bottom of the forming groove 11, the material pressing groove 15 extends along the moving direction of the upper die 1, a material pressing rod 162 is slidably embedded in the material pressing groove 15, a piston 161 is arranged at the end of the material pressing rod 162 extending into the material pressing groove 15, an oil cavity is formed between the end surface of the piston 161 away from the material pressing rod 162 and the inner wall of the material pressing groove 15, an oil path 17 communicating with the material pressing groove 15 is formed in the upper die 1, and (referring to the chinese patent with publication number CN109154262A, an overflow valve 18 (referring to the chinese patent with publication number CN 109154262A) is connected to the oil path 17 (the method for operating the overflow valve, the high-pressure pump and the overflow valve for the high-pressure pump, the valve inlet is communicated with the oil path 17 in the present embodiment, the valve outlet is communicated with an oil return line or an oil tank, etc.), one end of the oil path 17 away from the oil cavity is, the pressing rod 162 is prevented from leaving an impression on the plate, the surface production quality of the gear ring 0 is guaranteed, the periphery of the pressing plate 163 is abutted against the inner wall of the forming groove 11, the pressing plate 163 is provided with a center avoiding hole 164 for the central cutter 12 to pass through, an ear avoiding hole 165 for the ear cutter 13 to pass through and a circumferential avoiding hole 166 for the circumferential cutter 14 to pass through, and the pressing plate 163 is abutted against the plate on one side deviating from the pressing rod 162.

During processing, the upper die 1 moves downwards, the pressure plate 163 abuts against the plate, the upper die 1 continues to move downwards, the pressure plate 163 always abuts against the plate, so that the pressure plate 163 and the pressure rod 162 move upwards relative to the upper die 1, the working volume of the oil cavity is reduced, the oil pressure in the oil cavity and the oil circuit 17 is increased, the hydraulic oil in the oil cavity and the oil circuit 17 pushes away the overflow valve 18, at the moment, the overflow valve 18 is used for oil drainage and pressure stabilization, the pressure of the pressure rod 162 and the pressure plate 163 on the plate is ensured to be stable, the phenomenon that the central position of the plate is concave and the periphery of the plate is tilted in the process of punching the central hole 06; after the processing is finished, the upper die 1 moves upwards, the pressure plate 163 and the pressure rod 162 move downwards relative to the upper die 1, the working volume of the oil cavity is increased, the oil pressure in the oil cavity and the oil channel 17 is reduced, the overflow valve 18 is closed, the oil supply equipment supplies oil to the oil channel 17 and the oil cavity, so that the oil pressure in the oil cavity and the oil channel 17 is increased to the limit value of the overflow valve 18, at the moment, the overflow valve 18 is used for limiting the oil pressure in the oil cavity and the oil channel 17, the plate is separated from the forming groove 11 under the pushing of the pressure plate 163, and the subsequent.

Referring to fig. 2, blanking hole 25 has been seted up to the lower extreme of lower mould 2, and blanking hole 25's upper end intercommunication central slot 22, ear's groove 23 and circumference groove 24 cut out the waste material behind central hole 06, circumference hole 03 and the mounting hole 04 on the panel and directly fall into blanking hole 25 to pile up together, make things convenient for personnel to collect and handle the waste material.

Referring to fig. 4 and 5, the distance between the end surface of the lower end of the central cutter 12 and the bottom of the forming groove 11 is smaller than the depth of the forming groove 11, the distance between the end surface of the lower end of the circumferential cutter 14 and the bottom of the forming groove 11 is smaller than the distance between the end surface of the lower end of the central cutter 12 and the bottom of the forming groove 11, and the lower end of the circumferential cutter 14 and the lower end of the ear cutter 13 are flush, so that a circumferential hole 03 and a mounting hole 04 are simultaneously machined on a plate, and a time difference exists between the circumferential hole 03 and the mounting hole 06 and the central hole 06 is machined, and the circumferential hole 03 and the mounting hole 04 are machined step by step in the process of machining the gear ring 0 on the upper die 1 and the lower die 2, so that; the length of the central cutter 12, the circumferential cutter 14 and the ear cutter 13 extending out of the bottom of the forming groove 11 is shortened, a long and thin rod structure is prevented from being formed, the situation that the die cannot be used due to bending of the circumferential cutter 14 and the ear cutter 13 in batch production is avoided, and the machining precision of the gear ring 0 and the service life of the die are guaranteed; meanwhile, the central cutter 12, the circumferential cutter 14 and the ear cutters 13 are prevented from extending out of the lower end of the upper die 1 and then being impacted and deformed during feeding and discharging, and the machining precision of the gear ring 0 is guaranteed.

The implementation principle of the embodiment is as follows: the upper die 1 and the lower die 2 are provided with a plurality of pairs of matched cutters, so that the gear ring 0 can be machined by stamping the upper die 1 and the lower die 2 once without three working procedures, the influence on the relative position precision of the whole outline 05, the central hole 06 and the circumferential hole 03 caused by multiple positioning is avoided, and the production machining precision of the gear ring 0 is ensured; in the processing process, the pressure plate 163 always supports against the plate and has stable extrusion force, so that the bending deformation of the plate in the punching process is avoided, and the processing precision of the gear ring 0 is further ensured.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A ring gear mould which is characterized in that: including setting up on the punching machine and relative movement's last mould (1) and lower mould (2), the upper end of lower mould (2) is provided with forming tool (21) that is used for processing whole outline (05), forming groove (11) that are used for joining in marriage forming tool (21) are offered to the lower extreme of going up mould (1), forming groove's (11) tank bottom is provided with central cutter (12) that are used for processing centre bore (06), is used for processing ear cutter (13) of mounting hole (04) and is used for processing circumference cutter (14) of circumference hole (03), central groove (22) that are used for cooperating central cutter (12), circumference groove (24) that are used for cooperating ear cutter (13) ear groove (23) and are used for cooperating circumference cutter (14) are offered to the upper end of forming tool (21).

2. The ring gear mold according to claim 1, wherein: the lower extreme of circumference cutter (14) and the lower extreme parallel and level of ear's cutter (13), just the lower extreme of circumference cutter (14) is not parallel and level with the lower extreme of center cutter (12).

3. The ring gear mold according to claim 2, wherein: the distance between the end surface of the lower end of the circumferential cutter (14) and the bottom of the forming groove (11) is smaller than the distance between the end surface of the lower end of the central cutter (12) and the bottom of the forming groove (11).

4. The ring gear mold according to claim 3, wherein: the distance between the end surface of the lower end of the central cutter (12) and the bottom of the forming groove (11) is smaller than the depth of the forming groove (11).

5. The ring gear mold according to claim 1, wherein: blanking hole (25) have been seted up to the lower extreme of lower mould (2), the upper end intercommunication central slot (22), ear groove (23) and circumferential groove (24) of blanking hole (25).

6. The ring gear mold according to claim 1, wherein: the die comprises a forming groove (11), a material pressing groove (15) is formed in the bottom of the forming groove (11), the material pressing groove (15) extends along the moving direction of an upper die (1), a material pressing rod (162) is embedded in the material pressing groove (15) in a sliding mode, the end portion, extending out of the material pressing groove (15), of the material pressing rod (162) abuts against a plate, and when the upper die (1) is separated from a lower die (2), the end portion, extending out of the material pressing groove (15), of the material pressing rod (162) is flush with the lower end of the upper die (1.

7. The ring gear mold according to claim 6, wherein: the end part of the material pressing rod (162) extending into the material pressing groove (15) is provided with a piston (161), an oil cavity is formed between the end face of the piston (161) far away from the material pressing rod (162) and the inner wall of the material pressing groove (15), an oil way (17) communicated with the material pressing groove (15) is formed in the upper die (1), an overflow valve (18) is connected onto the oil way (17), and one end, far away from the oil cavity, of the oil way (17) is connected with an oil supply device.

8. The ring gear mold according to claim 7, wherein: the tip that presses material pole (162) to stretch out to press silo (15) is provided with and presses flitch (163), press the periphery of flitch (163) and the inner wall butt of shaping groove (11), set up the center that supplies central cutter (12) to pass on pressing flitch (163) and dodge hole (166) are dodged to hole (164), the ear that supplies ear cutter (13) to pass and the circumference that supplies circumference cutter (14) to pass and dodge hole (166).