CN218744650U

CN218744650U - Forging mould for bicycle crank

Info

Publication number: CN218744650U
Application number: CN202223321875.0U
Authority: CN
Inventors: 李松
Original assignee: Yangzhou Lisong Mould Co ltd
Current assignee: Yangzhou Lisong Mould Co ltd
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-03-28
Anticipated expiration: 2032-12-12

Abstract

The utility model relates to the technical field of bicycles and discloses a bicycle crank forging and pressing die, which comprises a base, wherein a forging mechanism is fixedly arranged above the base, an auxiliary mechanism is fixedly arranged on the bottom surface of the base, supporting legs are fixedly arranged on the bottom surface of the base, and the number of the supporting legs is four and are uniformly distributed on the peripheral bottom surface of the base; the forging and pressing mechanism comprises a forging and pressing part, an adjusting part and a fixing part, wherein the bottom surface of the adjusting part is fixedly connected with the top surface of the forging and pressing part, and the bottom surface of the forging and pressing part is fixedly connected with the top surface of the fixing part; the forging and pressing portion comprises a device plate A, and the bottom surface of the device plate A is fixedly connected with the upper surface of the left side of the base. This bicycle crank forging mould is through being provided with connecting rod and fixation nut cooperation for moving the mould and can requiring to change according to different crank forging shapes, and easy to assemble dismantles, and can adjust the forging and pressing to different shape cranks, and is nimble changeable, easy operation convenient and fast.

Description

Forging mould for bicycle crank

Technical Field

The utility model relates to a bicycle technical field specifically is bicycle crank forging mould.

Background

The loose crank often produces a clicking sound by either looping the bent portion of the shaft or by a bellcrank attached to the end of the shaft by a chain, which causes it to move in a circular motion, or which converts the reciprocating motion into a circular motion or vice versa. When the crank problem is detected, the crank is firstly rotated to the horizontal position, the cranks at the two sides are pressed downwards by force, then the crank is rotated for 180 degrees, and the same action is repeated. If the crank will shake, the crank fixing bolt should be fastened. The cranks of new bicycles are subjected to such checks frequently. The Chinese patent discloses a forging die with publication number CN207508190U, which comprises an upper die and a lower die, wherein the upper die is provided with a convex punch, the lower die is provided with a die cavity corresponding to the punch, the punch is pressed into the die cavity, the forging die is further provided with a first annular hot sleeve and a second annular hot sleeve, the shape of the inner wall of the first hot sleeve corresponds to the shape of the upper die, the shape of the inner wall of the second hot sleeve corresponds to the shape of the lower die, the inner diameter of the first hot sleeve is slightly smaller than the outer diameter of the upper die, and the inner diameter of the second hot sleeve is slightly smaller than the outer diameter of the lower die. However, the following disadvantages still exist: this forging mould makes the forging mould be difficult for fracture, fracture or deformation on last mould and lower mould through first shrink fit and the tight second shrink fit, but it can't switch the forging according to the mould shape of different types. Therefore, the forging and pressing die for the crank of the bicycle is designed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bicycle crank forging mould to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the bicycle crank forging and pressing die comprises a base, wherein a forging and pressing mechanism is fixedly arranged above the base, an auxiliary mechanism is fixedly arranged on the bottom surface of the base, supporting legs are fixedly arranged on the bottom surface of the base, and the number of the supporting legs is four and are uniformly distributed on the bottom surface of the periphery of the base;

the forging and pressing mechanism comprises a forging and pressing part, an adjusting part and a fixing part, wherein the bottom surface of the adjusting part is fixedly connected with the top surface of the forging and pressing part, and the bottom surface of the forging and pressing part is fixedly connected with the top surface of the fixing part;

the forging and pressing part comprises a device plate A, the bottom surface of the device plate A is fixedly connected with the upper surface of the left side of the base, and a through groove is fixedly formed in the right side surface of the device plate A;

the auxiliary mechanism comprises a cooling part and a heat preservation part, and the top surface of the cooling part is fixedly connected with the bottom surface of the heat preservation part;

the cooling part comprises a temperature guide plate, a through groove is fixedly formed in the top surface of the base, and the side surface of the temperature guide plate is fixedly connected with the inner wall of the through groove of the base.

Preferably, the upper surface of the right side of the base is fixedly provided with a device plate B, the left side of the device plate B is fixedly provided with a through groove, the top surface of the device plate A is fixedly provided with a motor, the bottom end of a motor output rod penetrates through the top surface of the device plate A and extends into the through groove of the device plate A, the bottom end of the motor output rod is fixedly provided with a threaded rod, the bottom end surface of the threaded rod and the bottom surface of the through groove of the device plate A are rotatably connected through a bearing seat, and the threaded rod can enable the connecting plate to move up and down.

Preferably, the driven rod is arranged inside the device plate B, the upper end face and the lower end face of the driven rod are respectively rotatably connected with the inner top face and the inner bottom face of the device plate B through two bearing seats, a connecting plate is sleeved on the surface of the threaded rod and the surface of the driven rod, the inner wall of the connecting plate is in threaded connection with the surface of the threaded rod, the inner wall of the connecting plate is in sliding connection with the surface of the driven rod, and the driven rod limits the connecting plate.

Preferably, threaded rod and driven lever top surface fixed cover respectively are equipped with two belt pulleys, two belt pulley surface winding is provided with the belt, two the belt pulley is connected by belt drive, connecting plate left end surface and device board A lead to the sealed sliding connection of groove inner wall, connecting plate right-hand member surface and device board B lead to the sealed sliding connection of groove inner wall, and belt pulley and belt provide the transmission effect.

Preferably, the bottom face of the connecting plate is provided with a movable die, the bottom face of the movable die is fixedly provided with a crank die groove, the top face of the movable die is fixedly provided with a connecting rod, the top face of the connecting rod penetrates through the bottom face of the connecting plate and extends to the position above the connecting plate, the threaded sleeve is arranged on the surface of the top end of the connecting rod and is provided with a fixing nut, the bottom face of the fixing nut is in sealing contact with the top face of the connecting plate, and the fixing nut facilitates the mounting and dismounting of the movable die.

Preferably, the fixed mould that is provided with of base top surface, the fixed mould top surface is fixed and has been seted up logical groove, the fixed mould leads to inslot wall and moves mould surface sealing contact, fixed mould bottom surface and lead temperature portion top surface fixed connection, lead the temperature board and improve cooling efficiency.

Preferably, the base bottom surface is fixed and is provided with the air-cooler, the fixed base bottom surface that runs through of air-cooler top end extends to the base and leads to inside the groove, decide mould fixed surface and be provided with the heated board, the heated board prevents to decide the inside temperature loss of mould.

Compared with the prior art, the beneficial effects of the utility model are that: the bicycle crank forging and pressing die is provided with the connecting rod and the fixing nut to work in a matched mode, so that the movable die can be exchanged according to different crank forging and pressing shape requirements, the mounting and dismounting are convenient, cranks of different shapes can be adjusted and forged, the operation is flexible and changeable, and the operation is simple, convenient and quick; the cold air blower and the temperature guide plate are arranged to work in a matched mode, so that the crank die in the fixed die is cooled after being formed, the crank die is molded more quickly, and forging and pressing efficiency of the bicycle crank is improved; through being provided with threaded rod and connecting plate cooperation work for the movable mould can adjust from top to bottom, makes when forging and pressing work, and movable mould and the inside space that does not exist of fixed mould, thereby leads to forging and pressing work normally going on, goes wrong.

Drawings

FIG. 1 is a schematic perspective view of the front cross-sectional structure of the present invention;

FIG. 2 is a schematic perspective view of the top view structure of the present invention;

FIG. 3 is a schematic front perspective view of the present invention;

FIG. 4 is a schematic perspective view of the area A shown in FIG. 1 according to the present invention;

fig. 5 is a schematic perspective view of the movable mold structure of the present invention.

In the figure: the device comprises a base 1, support legs 2, a forging mechanism 3, a forging portion 31, an adjusting portion 32, a fixing portion 33, a device plate A301, a device plate B302, a motor 303, a threaded rod 304, a driven rod 305, a belt pulley 306, a belt 307, a connecting plate 308, a movable die 309, a connecting rod 310, a fixing nut 311, a fixed die 312, a crank die groove 313, an auxiliary mechanism 4, a cooling portion 41, a heat preservation portion 42, a heat conducting plate 401, an air cooler 402 and a heat preservation plate 403.

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. 1-5, the present invention provides a technical solution: the bicycle crank forging die comprises a base 1, a device plate B302 is fixedly arranged on the upper surface of the right side of the base 1, a through groove is fixedly formed in the left side surface of the device plate B302, a motor 303 is fixedly arranged on the top surface of a device plate A301, the bottom end of an output rod of the motor 303 penetrates through the top surface of the device plate A301 and extends into the through groove of the device plate A301, a threaded rod 304 is fixedly arranged at the bottom end of the output rod of the motor 303, the bottom end surface of the threaded rod 304 and the bottom surface of the through groove of the device plate A301 are rotatably connected through a bearing seat, a driven rod 305 is arranged inside the device plate B302, the upper end surface and the lower end surface of the driven rod 305 are respectively rotatably connected with the top surface and the inner bottom surface of the device plate B302 through two bearing seats, a connecting plate 308 is sleeved on the surface of the threaded rod 304 and the surface of the threaded rod 304, the inner wall of the connecting plate 308 is in threaded connection with the surface of the threaded rod 304, the inner wall of the connecting plate 308 and the surface of the driven rod 305 are slidably connected, two belt pulleys 306 are respectively fixedly sleeved on the top surface of the top end surface of the driven rod, a belt 309, a belt 307, the surface of the connecting plate 308 and the inner wall of the through groove 309 are in a sealing connection, the groove 309, the connecting plate B302, the groove, the connecting plate 309 is not in a sealing connection, the groove, the connecting plate 309, the working gap is formed, the working gap of the die 309, the die can be adjusted, the die, and the working gap of the die can be adjusted, and the die can be adjusted by the connecting plate 308, and the die, and the working gap can be adjusted by the working gap of the die, and the die can be adjusted by the connecting plate 309, the die, and the working gap can be adjusted by the working gap can be formed in the working gap can be formed between the die; the bottom end face of the movable die 309 is fixedly provided with a crank die groove 313, the top end face of the movable die 309 is fixedly provided with a connecting rod 310, the top end face of the connecting rod 310 penetrates through the bottom face of the connecting plate 308 and extends to the position above the connecting plate 308, a fixing nut 311 is sleeved on the top end face of the connecting rod 310 in a threaded manner, and the movable die 309 and the fixing nut 311 are matched to work, so that the movable die 309 can be changed according to different crank forging shape requirements, the installation and the disassembly are convenient, cranks of different shapes can be adjusted and forged, and the operation is flexible, variable and simple, convenient and rapid; the bottom surface of the fixed nut 311 is in sealing contact with the top surface of the connecting plate 308, the top surface of the base 1 is fixedly provided with a fixed die 312, the top surface of the fixed die 312 is fixedly provided with a through groove, the inner wall of the through groove of the fixed die 312 is in sealing contact with the surface of the movable die 309, the bottom surface of the fixed die 312 is fixedly connected with the top surface of the temperature conducting part 401, the bottom surface of the base 1 is fixedly provided with an air cooler 402, and the air cooler 402 and the temperature conducting plate 401 are arranged to work in a matched manner, so that the crank die in the fixed die 312 is cooled after being formed, the crank die is molded more quickly, and the forging efficiency of the bicycle crank is improved; the top end face of the air cooler 402 fixedly penetrates through the bottom face of the base 1 and extends into the through groove of the base 1, the surface of the fixed die 312 is fixedly provided with an insulation board 403, a forging mechanism 3 is fixedly arranged above the base 1, the bottom face of the base 1 is fixedly provided with an auxiliary mechanism 4, the bottom face of the base 1 is fixedly provided with four support legs 2, and the four support legs 2 are uniformly distributed on the bottom face of the periphery of the base 1; the forging mechanism 3 comprises a forging part 31, an adjusting part 32 and a fixing part 33, wherein the bottom surface of the adjusting part 32 is fixedly connected with the top surface of the forging part 31, and the bottom surface of the forging part 31 is fixedly connected with the top surface of the fixing part 33; the forging and pressing part 31 comprises a device plate A301, the bottom surface of the device plate A301 is fixedly connected with the upper surface of the left side of the base 1, and a through groove is fixedly formed in the right side surface of the device plate A301; the auxiliary mechanism 4 comprises a cooling part 41 and a heat preservation part 42, wherein the top surface of the cooling part 41 is fixedly connected with the bottom surface of the heat preservation part 42; the cooling part 41 comprises a temperature guide plate 401, a through groove is fixedly formed in the top surface of the base 1, and the side surface of the temperature guide plate 401 is fixedly connected with the inner wall of the through groove of the base 1.

During the use, at first after confirming the shape that will forge and press at first, find corresponding movable mould 309, insert connecting rod 310 in the connecting plate 308 through-hole, correspond fixation nut 311 and connecting rod 310 and screw up, make movable mould 309 fix in connecting plate 308 bottom surface, place into inside fixed mould 312 with the molten iron, starter motor 303, make threaded rod 304 begin to rotate, through two belt pulleys 306 and belt 307 cooperation work, make connecting plate 308 remove downwards, make movable mould 309 and fixed mould 312 sealing contact, start air-cooler 402, make the inside quick cooling of fixed mould 312 through leading warm plate 401, the mould shaping promptly.

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 the 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. Bicycle crank forging mould, including base (1), its characterized in that: a forging mechanism (3) is fixedly arranged above the base (1), an auxiliary mechanism (4) is fixedly arranged on the bottom surface of the base (1), supporting legs (2) are fixedly arranged on the bottom surface of the base (1), and the number of the supporting legs (2) is four and is uniformly distributed on the bottom surface of the periphery of the base (1);

the forging and pressing mechanism (3) comprises a forging and pressing part (31), an adjusting part (32) and a fixing part (33), the bottom surface of the adjusting part (32) is fixedly connected with the top surface of the forging and pressing part (31), and the bottom surface of the forging and pressing part (31) is fixedly connected with the top surface of the fixing part (33);

the forging and pressing part (31) comprises a device plate A (301), the bottom surface of the device plate A (301) is fixedly connected with the upper surface of the left side of the base (1), and a through groove is fixedly formed in the right side surface of the device plate A (301);

the auxiliary mechanism (4) comprises a cooling part (41) and a heat preservation part (42), and the top surface of the cooling part (41) is fixedly connected with the bottom surface of the heat preservation part (42);

the cooling part (41) comprises a temperature guide plate (401), a through groove is fixedly formed in the top surface of the base (1), and the side surface of the temperature guide plate (401) is fixedly connected with the inner wall of the through groove of the base (1).

2. The bicycle crank forging die of claim 1, wherein: base (1) right side upper surface is fixed and is provided with device board B (302), device board B (302) left surface is fixed and has been seted up logical groove, device board A (301) top surface is fixed and is provided with motor (303), motor (303) output lever bottom is run through device board A (301) top surface and is extended to device board A (301) and lead to the inslot portion, motor (303) output lever bottom end is fixed and is provided with threaded rod (304), threaded rod (304) bottom face and device board A (301) lead to the inslot portion bottom surface and are rotated by the bearing frame and are connected.

3. The bicycle crank forging die of claim 2, wherein: the device plate B (302) is internally provided with a driven rod (305), the upper end face and the lower end face of the driven rod (305) are respectively rotatably connected with the inner top surface and the inner bottom surface of the device plate B (302) through two bearing seats, the surface of the threaded rod (304) and the surface of the driven rod (305) are sleeved with a connecting plate (308), the inner wall of the connecting plate (308) is in threaded connection with the surface of the threaded rod (304), and the inner wall of the connecting plate (308) is in sliding connection with the surface of the driven rod (305).

4. The bicycle crank forging die of claim 3, wherein: threaded rod (304) and driven lever (305) top surface fixed cover respectively are equipped with two belt pulleys (306), two belt pulley (306) surface winding is provided with belt (307), two belt pulley (306) are connected by belt (307) transmission, connecting plate (308) left end surface and device board A (301) lead to the sealed sliding connection of groove inner wall, connecting plate (308) right-hand member surface and device board B (302) lead to the sealed sliding connection of groove inner wall.

5. The bicycle crank forging die of claim 4, wherein: the bottom end face of the connecting plate (308) is provided with a movable die (309), a crank die-shaped groove (313) is fixedly formed in the bottom end face of the movable die (309), a connecting rod (310) is fixedly arranged on the top end face of the movable die (309), the top end face of the connecting rod (310) penetrates through the bottom face of the connecting plate (308) and extends to the position above the connecting plate (308), a fixing nut (311) is sleeved on the surface of the top end of the connecting rod (310) in a threaded manner, and the bottom face of the fixing nut (311) is in sealing contact with the top face of the connecting plate (308).

6. The bicycle crank forging die of claim 5, wherein: the fixed bed die (312) that is provided with of base (1) top surface, the fixed logical groove of having seted up of bed die (312) top surface, bed die (312) lead to inslot wall and move mould (309) surface seal contact, bed die (312) bottom surface and lead warm board (401) top surface fixed connection.

7. The bicycle crank forging die of claim 6, wherein: the air cooler is fixedly arranged on the bottom surface of the base (1), the top end face of the air cooler (402) fixedly penetrates through the bottom surface of the base (1) and extends into the through groove of the base (1), and the surface of the fixed die (312) is fixedly provided with the heat insulation plate (403).