CN213497509U - Gear shaft hole finish machining device - Google Patents
Gear shaft hole finish machining device Download PDFInfo
- Publication number
- CN213497509U CN213497509U CN202022300882.7U CN202022300882U CN213497509U CN 213497509 U CN213497509 U CN 213497509U CN 202022300882 U CN202022300882 U CN 202022300882U CN 213497509 U CN213497509 U CN 213497509U
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- China
- Prior art keywords
- gear
- shaft hole
- hole
- steel ball
- positioning
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- Gears, Cams (AREA)
Abstract
The utility model discloses a gear shaft hole finish machining device, include: the location base, the gear, steel ball and through-hole are gone up the punch, be equipped with the through-hole that is more than or equal to the gear shaft hole on the location base, the top surface of location base is supporting platform, the last constant head tank that is used for fixed gear that is equipped with of supporting platform, the gear setting is on the constant head tank of location base and the shaft hole of gear is corresponding with the through-hole of location base, the mobilizable setting of steel ball is in the shaft hole of gear, the external diameter of steel ball equals with the internal diameter in shaft hole, the bottom of through-hole upper punch is corresponding with the steel ball, the motor is connected on the top of through-hole upper punch, the steel ball can be followed the shaft hole top of gear and moved towards the bottom under the effect of through-hole upper punch, in-process that removes can take away the metal powder or the burr of shaft hole.
Description
Technical Field
The utility model relates to a gear machining's technical field especially indicates a gear shaft hole finish machining device.
Background
Powder metallurgy is a process technology for manufacturing metal materials, composite materials and various products by preparing metal powder or taking the metal powder as a raw material and forming and sintering the metal powder. The powder metallurgy technology is an advanced part manufacturing technology which is energy-saving, material-saving, environment-friendly, high in efficiency, low in cost and near (net) shaping, and products of the powder metallurgy technology are widely applied to the fields of machinery, power electronics, automation, aerospace, automobiles, military and the like.
The gear transmission is the most widely applied transmission mode in mechanical transmission, can ensure stable transmission, and has the advantages of high transmission efficiency and long service life, the production precision of the gear is high, the gear processed by steel parts has the defects of low processing efficiency, high cost and low precision, and the gear manufactured by powder metallurgy has the advantages of low cost, high efficiency and high precision. When utilizing powder metallurgy pressing die suppression synchronous gear, need the extrusion in the lump locate synchronous gear center and run through the shaft hole at synchronous gear both ends, the mold core suppression of pressing die goes out the shaft hole after, can remain some metal powder in the shaft hole to reduce the precision in shaft hole, if not handle the shaft hole and directly calcine the processing, can make the rough unevenness of shaft hole inner wall of gear or form the burr, reduce the off-the-shelf yield of gear.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a precision that can improve powder metallurgy gear shaft hole to improve the gear shaft hole finish machining device of gear yield.
In order to achieve the above purpose, the solution of the present invention is:
a gear shaft hole finishing device, comprising:
the positioning device comprises a positioning base, a positioning mechanism and a positioning mechanism, wherein the positioning base is provided with a through hole which is larger than or equal to a gear shaft hole, the top surface of the positioning base is a supporting platform, and the supporting platform is provided with a positioning groove for fixing a gear;
the center of the gear is provided with a through shaft hole, the gear is arranged on the positioning groove of the positioning base, and the shaft hole of the gear corresponds to the through hole of the positioning base;
the steel ball is movably arranged in the shaft hole of the gear, and the outer diameter of the steel ball is equal to the inner diameter of the shaft hole; and
and the through hole upper punch is arranged, the bottom end of the through hole upper punch corresponds to the steel ball, the top end of the through hole upper punch is connected with the motor, and the longitudinal length of the through hole upper punch is greater than or equal to the height of the shaft hole of the gear.
After the scheme is adopted, the utility model discloses gear shaft hole finish machining device places on the supporting platform of location base through the powder metallurgy gear with press forming, the periphery of gear corresponds the cooperation in the constant head tank of location base, it is corresponding with the through-hole of location base to make the shaft hole of gear, place the steel ball on the shaft hole top of gear again, start the motor on the connecting hole upper punch, make the motor drive through-hole upper punch with the steel ball from the shaft hole top down removal of gear, because the external diameter of steel ball is the same with the shaft hole internal diameter of gear, the in-process that the steel ball removed can take away the metal powder or the burr of shaft hole inner wall, the shaft hole that rolls through the steel ball can form smooth inner wall, thereby improve the precision in shaft hole, and then improve the product yield after the gear machining. When the steel ball rolls out from the bottom end of the shaft hole of the gear under the pushing action of the upper punch of the through hole, the steel ball directly falls into the through hole of the positioning base and slides down from the bottom end of the through hole of the positioning base.
Furthermore, the positioning groove of the positioning base is a U-shaped groove, and the curved arc part of the U-shaped groove is a semicircle corresponding to the outer diameter of the gear, so that the gear can be rightly clamped in the curved arc part of the U-shaped groove for positioning, and the steel ball and the through hole can be conveniently punched. During assembly, the gear can be clamped into the bent arc part of the U-shaped groove from the opening of the U-shaped groove for positioning, and can also be directly inserted into the bent arc part from the upper part of the bent arc part for positioning.
Further, constant head tank detachable fixes on the supporting platform of location base, and the constant head tank can adopt the mode locking of a plurality of screw locks on supporting platform, also can adopt the mode of buckle and location base joint or other connected modes, and the purpose is according to the not unidimensional constant head tank of gear change not, improves gear shaft hole finishing device's suitability.
Furthermore, the positioning base is provided with a drawing box communicated with the through hole, and when the steel ball falls out of the shaft hole of the gear, the steel ball and the metal powder can enter the drawing box through the through hole of the positioning base and can be drawn out of the drawing box.
Drawings
Fig. 1 is an exploded view of the present invention.
Fig. 2 is a schematic structural view of the gear fixed on the positioning base in fig. 1.
Detailed Description
In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following embodiments.
As shown in fig. 1, the utility model discloses a gear shaft hole finish machining device, it includes: the positioning device comprises a positioning base 1, a gear 2, a steel ball 3 and a through hole upper punch 4.
Be equipped with the through-hole 11 that runs through the top surface on the location base 1, the top surface of location base 1 is supporting platform 12, be equipped with the constant head tank 13 that is used for fixed gear 2 on the supporting platform 12, the structure of constant head tank 13 can be multiple, in order to increase the suitability of constant head tank 13, make it can cooperate with multiple size gear 2, this constant head tank 13 preferred can adopt detachable mode to fix on the supporting platform 12 of location base 1, constant head tank 13 can adopt the mode locking of a plurality of screw locks on supporting platform 12, also can adopt the mode of buckle and location base 1 joint or other connected modes, the purpose is according to the not unidimensional constant head tank of gear change, thereby improve the suitability of tooth location base 1. The positioning groove 13 may have various structures, for example, a plurality of components may be fixed on the supporting platform 12 of the positioning base 1 at intervals, as shown in fig. 1, in this embodiment, the positioning groove 13 is a U-shaped groove, and the curved portion 131 of the U-shaped groove is a semicircle corresponding to the outer diameter of the gear 2, so that the gear 2 can be exactly clamped in the curved portion 131 of the U-shaped groove 13 for positioning, so as to facilitate the actions of the steel ball 3 and the through hole punch 4. During assembly, the gear 2 can be clamped into the bent arc part 131 of the U-shaped groove from the opening 132 of the U-shaped groove for positioning, and can also be directly inserted into the bent arc part 131 from the upper part of the bent arc part 131 for positioning.
The center of the gear 2 is provided with a through shaft hole 21, the gear 2 is arranged on the positioning groove 13 of the positioning base 1, the shaft hole 21 of the gear 2 corresponds to the through hole 11 of the positioning base 1, and the through hole 11 of the positioning base 1 is larger than or equal to the shaft hole 21 of the gear 2. The gear 2 is pressed and formed by a powder metallurgy pressing die.
The steel ball 3 is movably arranged in the shaft hole 21 of the gear 2, and the outer diameter of the steel ball 3 is equal to the inner diameter of the shaft hole 21.
The through hole upper punch 4 is provided with a punch rod, the bottom end of the punch rod faces the steel ball 2 and is correspondingly arranged above the shaft hole 21 of the gear 2, the top end of the through hole upper punch 4 is connected with a motor, the longitudinal length of the punch rod of the through hole upper punch 4 is larger than or equal to the height of the shaft hole 21 of the gear 2, and the punch rod of the through hole upper punch 4 can punch the steel ball into the bottom end of the shaft hole from the top end of the shaft hole 21 of the gear.
The utility model discloses gear shaft hole finish machining device's theory of operation is: the powder metallurgy gear 2 that will press forming places on the supporting platform 12 of location base 1, the periphery of gear 2 corresponds the cooperation in the constant head tank 13 of location base 1, make the shaft hole 21 of gear 2 corresponding with the through-hole 11 of location base 1, place steel ball 3 on the shaft hole 21 top of gear 2 again, start the motor of connecting through-hole upper punch 4, make the motor drive through-hole upper punch 4 with steel ball 3 from the shaft hole 21 top of gear 2 down removing, because the external diameter of steel ball 3 is the same with the shaft hole 21 internal diameter of gear 2, the in-process that steel ball 3 removed can take away the metal powder or the burr of shaft hole 3 inner wall, shaft hole 21 that the steel ball 3 rolled through can form smooth inner wall, thereby improve the precision in shaft hole 21, and then improve the product yield after gear 3 processes. When the steel ball 3 rolls out from the bottom end of the shaft hole 21 of the gear under the pushing action of the through hole upper punch 4, the steel ball directly falls into the through hole 11 of the positioning base 1 and slides down from the bottom end of the through hole 11 of the positioning base 1. In order to collect metal powder and steel balls conveniently, a drawing box (not shown in the figure) communicated with the through hole 11 can be arranged on the positioning base 1, when the steel balls 3 fall out from the shaft holes 21 of the gears 2, the steel balls 3 and the metal powder can enter the drawing box through the through holes 11 of the positioning base 1, and the drawing box is drawn out to clean powder scraps and take out the steel balls.
The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications made by those skilled in the art should not be construed as departing from the scope of the present invention.
Claims (4)
1. A gear shaft hole finish machining device is characterized by comprising:
the positioning device comprises a positioning base, a positioning mechanism and a positioning mechanism, wherein the positioning base is provided with a through hole which is larger than or equal to a gear shaft hole, the top surface of the positioning base is a supporting platform, and the supporting platform is provided with a positioning groove for fixing a gear;
the center of the gear is provided with a through shaft hole, the gear is arranged on the positioning groove of the positioning base, and the shaft hole of the gear corresponds to the through hole of the positioning base;
the steel ball is movably arranged in the shaft hole of the gear, and the outer diameter of the steel ball is equal to the inner diameter of the shaft hole; and
and the through hole upper punch is arranged, the bottom end of the through hole upper punch corresponds to the steel ball, the top end of the through hole upper punch is connected with the motor, and the longitudinal length of the through hole upper punch is greater than or equal to the height of the shaft hole of the gear.
2. The gear shaft hole finishing device of claim 1, wherein: the locating slot of the locating base is a U-shaped slot, and the curved arc part of the U-shaped slot is a semicircle corresponding to the outer diameter of the gear.
3. A gear shaft hole finishing device as defined in claim 1 or 2, wherein: the positioning groove is detachably fixed on the supporting platform of the positioning base.
4. The gear shaft hole finishing device of claim 1, wherein: the positioning base is provided with a drawing box communicated with the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022300882.7U CN213497509U (en) | 2020-10-15 | 2020-10-15 | Gear shaft hole finish machining device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022300882.7U CN213497509U (en) | 2020-10-15 | 2020-10-15 | Gear shaft hole finish machining device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213497509U true CN213497509U (en) | 2021-06-22 |
Family
ID=76398308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022300882.7U Active CN213497509U (en) | 2020-10-15 | 2020-10-15 | Gear shaft hole finish machining device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213497509U (en) |
-
2020
- 2020-10-15 CN CN202022300882.7U patent/CN213497509U/en active Active
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