Forging and pressing die for bicycle crank

Abstract

The utility model relates to the technical field of die forging, and discloses a forging and pressing die for a bicycle crank, which comprises a bottom column, a pressing plate and a pressing plate, the hydraulic assembly is fixedly mounted in the base; wherein the hydraulic assembly comprises an oil cylinder part and a recovery part; the stamping assembly is fixedly mounted at the top of the base; wherein the stamping assembly comprises a temperature control part and a stamping part; and the oil cylinder part comprises an oil storage barrel. The temperature control part is arranged, due to the fact that the temperature of the forging and pressing die of the bicycle crank is too high in the forging and pressing process, a machine body is damaged, meanwhile, the high-temperature environment is not beneficial to actual operation of workers, and potential safety hazards exist, the temperature control part can effectively reduce the high temperature around the forging and pressing die of the bicycle crank through the water cooling system. And the effect of effectively cooling the forging and pressing die of the bicycle crank is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of die forging, in particular to a forging die for a bicycle crank. Background Technique

[0002] A forging die refers to a tool that can form a blank into a die forging. The forging die is an essential key process equipment in the production of die forgings and is a tool that needs to be used in each stroke of the equipment, playing a crucial role in the production of die forgings.

[0003] A forging die is a die used in the forging process. Under the action of external force, the raw material undergoes plastic deformation in the forging die to obtain a part with the required shape and size. Forging dies can be divided into hot forging dies, warm forging dies, and cold forging dies according to different forging temperatures. Hot forging dies can be further divided into hammer forging dies, screw press forging dies, mechanical press forging dies, upsetting dies, and hydraulic press forging dies, etc. according to different equipment. When forging with a press, a die set needs to be designed and processed, and blank-making dies (such as roll forging, cross wedge rolling), trimming dies, punching dies, sizing dies, cold coining dies, etc. are also required in the forging process. These dies and devices also belong to the category of forging dies.

[0004] At present, during the actual production process of the forging die for a bicycle crank, a relatively high temperature will be generated, which is not only not conducive to the long-term use of the forging die for a bicycle crank but also not conducive to the work of the workers, and there is a risk of scalding. Content of the Utility Model

[0005] The purpose of the utility model is to provide a forging die for a bicycle crank to achieve the purpose of solving the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A forging die for a bicycle crank, comprising:

[0007] A bottom column, on the top of which a base is fixedly installed;

[0008] A hydraulic component, which is fixedly installed inside the base;

[0009] Among them, the hydraulic component includes an oil cylinder part and a restoration part;

[0010] A stamping component, which is fixedly installed on the top of the base;

[0011] Among them, the stamping component includes a temperature control part and a stamping part.

[0012] Preferably, the oil cylinder part includes an oil storage cylinder. A support column is fixedly installed inside the base, and an oil cylinder is fixedly installed inside the base. An oil inlet is provided inside the oil cylinder, and a piston is movably installed inside the oil cylinder. An oil inlet hopper is fixedly installed on the right side of the base.

[0013] Preferably, the oil storage cylinder is fixedly installed inside the base. The top of the support column is fixedly installed with the oil cylinder. The oil inlet connects the oil storage cylinder and the oil cylinder. The oil inlet hopper is connected to the oil storage cylinder. An oil leakage port is provided inside the piston.

[0014] Preferably, the restoring part includes a cylindrical weight. Fixed seats are fixedly installed at both ends of the base. A connecting hopper is fixedly installed at the bottom of the fixed seat. The cylindrical weight is movably installed with the fixed seat. The connecting hopper is connected to the oil cylinder.

[0015] Preferably, the temperature control part includes a water tank. Cooling fins are fixedly installed on the inner wall of the bottom of the water tank. A wire mesh is fixedly installed on the top of the water tank. A top cover is provided above the base. A first hydraulic telescopic rod is provided above the base. The output end of the first hydraulic telescopic rod is fixedly installed with a connecting rod. One end of the connecting rod is fixedly connected with a baffle. An outlet and a temperature sensing module are provided above the base.

[0016] Preferably, the cooling fins are electrically connected to the temperature sensing module. The top of the water tank is adapted to the top cover. The first hydraulic telescopic rod is electrically connected to the temperature sensing module.

[0017] Preferably, the stamping part includes a bottom plate. The bottom plate is fixedly installed on the top of the piston. A support rod is fixedly installed on the top of the base. A limiting plate is movably installed in the middle of the support rod. A fixed frame is fixedly installed on the inner wall of the top of the support rod. A second hydraulic telescopic rod is fixedly installed inside the fixed frame. A stamping template is fixedly installed at the bottom of the limiting plate. A fixed template is fixedly installed inside the bottom plate.

[0018] Preferably, the inner wall of the bottom plate is fixedly installed with the water tank. The inner wall of the bottom plate is fixedly installed with the first hydraulic telescopic rod. The outlet is provided inside the bottom plate.

[0019] The utility model provides a forging die for a bicycle crank. It has the following beneficial effects:

[0020] (1). By setting a hydraulic component in the utility model and using a hydraulic system, a part of the impact force generated during the production of the forging die for the bicycle crank is offset, reducing the damage of the impact force to the entire forging die for the bicycle crank, and achieving the effect of extending the service life of the forging die for the bicycle crank.

[0021] (2) By setting a temperature control part in the present utility model, since the forging die of the bicycle crank is too hot during the forging process, it is harmful to the machine body. At the same time, the high-temperature environment is not conducive to the actual operation of workers and there are potential safety hazards. The temperature control part can effectively reduce the high temperature around the forging die of the bicycle crank by using a water cooling system, achieving the effect of effectively cooling the forging die of the bicycle crank. Description of the Drawings

[0022] Figure 1 It is a schematic structural diagram of the present utility model;

[0023] Figure 2 It is a front view of the present utility model;

[0024] Figure 3 For the present utility model Figure 2 A partial enlarged view of A in it;

[0025] Figure 4 For the present utility model Figure 2 A partial enlarged view of B in it.

[0026] In the figure: 1 bottom column, 2 hydraulic components, 21 cylinder part, 211 oil storage cylinder, 212 support column, 213 oil inlet, 214 oil plug, 215 cylinder, 216 oil inlet hopper, 22 restoration part, 221 cylindrical weight, 222 fixed seat, 223 connecting hopper, 3 base, 4 stamping components, 41 temperature control part, 411 water tank, 412 cooling fins, 413 iron net, 414 top cover, 415 first hydraulic extension rod, 416 water outlet, 417 connecting rod, 418 baffle, 419 temperature sensing module, 42 stamping part, 421 bottom plate, 422 support rod, 423 limiting plate, 424 fixing frame, 425 second hydraulic extension rod, 426 stamping template, 427 fixed template. Detailed Implementation Manner

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0028] The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model. Embodiment 1

[0029] A preferred embodiment of a forging die for a bicycle crank provided by the present utility model is as follows Figures 1-4 shown: A forging die for a bicycle crank, comprising:

[0030] A bottom column 1, with a base 3 fixedly installed at the top of the bottom column 1;

[0031] A hydraulic component 2, fixedly installed inside the base 3;

[0032] Among them, the hydraulic component 2 includes an oil cylinder part 21 and a restoration part 22;

[0033] The oil cylinder part 21 includes an oil storage cylinder 211, a support column 212 fixedly installed inside the base 3, an oil cylinder 215 fixedly installed inside the base 3, an oil inlet 213 opened inside the oil cylinder 215, a piston 214 movably installed inside the oil cylinder 215, an oil inlet hopper 216 fixedly installed on the right side of the base 3, the oil storage cylinder 211 fixedly installed inside the base 3, the top of the support column 212 fixedly installed with the oil cylinder 215, the oil inlet 213 connecting the oil storage cylinder 211 and the oil cylinder 215, the oil inlet hopper 216 communicating with the oil storage cylinder 211, and an oil leakage port opened inside the piston 214; The oil storage cylinder 211 is filled with oil, and the oil enters the oil cylinder 215 through the oil inlet 213. When the piston 214 descends, the oil enters the upper half of the oil cylinder 215 through the oil leakage port opened inside the piston 214, using the resistance generated when the liquid enters to offset the impact force;

[0034] The restoration part 22 includes a cylindrical weight 221, fixed seats 222 fixedly installed at both ends of the base 3, a connecting hopper 223 fixedly installed at the bottom of the fixed seat 222, the cylindrical weight 221 movably installed with the fixed seat 222, the cylindrical weight 221 movably installed with the fixed seat 222, and the connecting hopper 223 communicating with the oil cylinder 215; When the oil enters the upper half of the oil cylinder 215, the oil enters the inside of the fixed seat 222 through the connecting hopper 223, and at the same time the cylindrical weight 221 is lifted. When the impact force disappears, the cylindrical weight 221 under the action of gravity sends the oil back to the lower half of the oil cylinder 215 through the connecting hopper 223, and the piston 214 is pushed back to its original position. Embodiment 2

[0035] Based on Embodiment 1, a preferred embodiment of a forging die for a bicycle crank provided by the present utility model is as follows Figures 1-4 shown: A stamping component 4, fixedly installed on the top of the base 3;

[0036] Among them, the stamping component 4 includes a temperature control part 41 and a stamping part 42;

[0037] The temperature control part 41 includes a water tank 411. A cooling fin 412 is fixedly installed on the inner wall of the bottom of the water tank 411. A wire mesh 413 is fixedly installed on the top of the water tank 411. A top cover 414 is arranged above the base 3. A first hydraulic telescopic rod 415 is arranged above the base 3. The output end of the first hydraulic telescopic rod 415 is fixedly installed with a connecting rod 417. One end of the connecting rod 417 is fixedly connected with a baffle 418. A water outlet 416 and a temperature sensing module 419 are arranged above the base 3. The cooling fin 412 is electrically connected with the temperature sensing module 419. The top of the water tank 411 is adapted to the top cover 414. The first hydraulic telescopic rod 415 is electrically connected with the temperature sensing module 419. The water tank 411 is filled with water and is cooled by the cooling fin 412 at the same time to cool the forging die with water. When the temperature outside the water tank 411 is too high, the temperature sensing module 419 receives a signal and controls the cooling fin 412 to work for cooling treatment. When the water temperature inside the water tank 411 no longer decreases under the action of the cooling fin 412, the first hydraulic telescopic rod 415 is controlled to work to open the baffle 418, and the water inside the water tank 411 flows out through the water outlet 416. After the water inside the water tank 411 is emptied, cold water is injected through the wire mesh 413;

[0038] The stamping part 42 includes a bottom plate 421. The bottom plate 421 is fixedly installed on the top of the oil plug 214. A support rod 422 is fixedly installed on the top of the base 3. A limiting plate 423 is movably installed in the middle of the support rod 422. A fixing frame 424 is fixedly installed on the inner wall of the top of the support rod 422. A second hydraulic telescopic rod 425 is fixedly installed inside the fixing frame 424. A stamping template 426 is fixedly installed at the bottom of the limiting plate 423. A fixed template 427 is fixedly installed inside the bottom plate 421. The inner wall of the bottom plate 421 is fixedly installed with the water tank 411. The inner wall of the bottom plate 421 is fixedly installed with the first hydraulic telescopic rod 415. The water outlet 416 is opened inside the bottom plate 421. The second hydraulic telescopic rod 425 works to control the stamping template 426 to stamp downward.

[0039] In use, the oil storage cylinder 211 is filled with oil. The oil enters the oil cylinder 215 through the oil inlet 213. When the oil plug 214 descends, the oil enters the upper half of the oil cylinder 215 through the oil leakage port opened inside the oil plug 214, and the resistance generated when the liquid enters is used to offset the impact force. When the oil enters the upper half of the oil cylinder 215, the oil enters the inside of the fixed seat 222 through the connecting hopper 223, and at the same time, the cylindrical heavy block 221 is lifted. When the impact force disappears, under the action of gravity, the cylindrical heavy block 221 sends the oil back to the lower half of the oil cylinder 215 through the connecting hopper 223, and the oil plug 214 is pushed back to its original position. The water tank 411 is filled with water and is cooled by the cooling fins 412 at the same time to perform water cooling on the forging die. When the temperature outside the water tank 411 is too high, the temperature sensing module 419 receives a signal and controls the cooling fins 412 to work for cooling. When the water temperature inside the water tank 411 no longer decreases under the action of the cooling fins 412, the hydraulic telescopic rod 415 is controlled to work to open the baffle 418, and the water inside the water tank 411 flows out through the water outlet 416. When the water inside the water tank 411 is emptied, cold water is injected through the iron net 413, and the hydraulic telescopic rod 425 works to control the stamping template 426 to stamp downward.

[0040] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A forging die for a bicycle crank, characterized in that, Including: Bottom column (1), with a base (3) fixedly installed at the top of the bottom column (1); Hydraulic component (2), which is fixedly installed inside the base (3); Among them, the hydraulic component (2) includes an oil cylinder part (21) and a restoration part (22); Stamping component (4), which is fixedly installed on the top of the base (3); Among them, the stamping component (4) includes a temperature control part (41) and a stamping part (42).

2. The forging die for a bicycle crank according to claim 1, characterized in that: The oil cylinder part (21) includes an oil storage cylinder (211), a support column (212) is fixedly installed inside the base (3), an oil cylinder (215) is fixedly installed inside the base (3), an oil inlet (213) is opened inside the oil cylinder (215), a piston (214) is movably installed inside the oil cylinder (215), and an oil inlet hopper (216) is fixedly installed on the right side of the base (3).

3. The forging die for a bicycle crank according to claim 2, characterized in that: The oil storage cylinder (211) is fixedly installed inside the base (3), the top of the support column (212) is fixedly installed with the oil cylinder (215), the oil inlet (213) connects the oil storage cylinder (211) and the oil cylinder (215), the oil inlet hopper (216) is connected to the oil storage cylinder (211), and a leakage port is opened inside the piston (214).

4. A forging die for a bicycle crank according to claim 1, characterized in that: The restoration part (22) includes a cylindrical weight (221), fixed seats (222) are fixedly installed at both ends of the base (3), a connecting hopper (223) is fixedly installed at the bottom of the fixed seat (222), the cylindrical weight (221) is movably installed with the fixed seat (222), and the connecting hopper (223) is connected to the oil cylinder (215).

5. A forging die for a bicycle crank according to claim 1, characterized in that: The temperature control part (41) includes a water tank (411), a cooling fin (412) is fixedly installed on the inner wall of the bottom of the water tank (411), an iron net (413) is fixedly installed on the top of the water tank (411), a top cover (414) is arranged above the base (3), a first hydraulic telescopic rod (415) is arranged above the base (3), a connecting rod (417) is fixedly installed at the output end of the first hydraulic telescopic rod (415), a baffle (418) is fixedly connected to one end of the connecting rod (417), and a water outlet (416) and a temperature sensing module (419) are arranged above the base (3).

6. The forging die for a bicycle crank according to claim 5, characterized in that: The cooling fin (412) is electrically connected to the temperature sensing module (419), the top of the water tank (411) is adapted to the top cover (414), and the first hydraulic telescopic rod (415) is electrically connected to the temperature sensing module (419).

7. A forging die for a bicycle crank according to claim 1, characterized in that: The stamping part (42) includes a bottom plate (421), the bottom plate (421) is fixedly installed on the top of the oil plug (214), a support rod (422) is fixedly installed on the top of the base (3), a limiting plate (423) is movably installed in the middle of the support rod (422), a fixing frame (424) is fixedly installed on the inner wall at the top of the support rod (422), a second hydraulic telescopic rod (425) is fixedly installed inside the fixing frame (424), a stamping template (426) is fixedly installed at the bottom of the limiting plate (423), and a fixed template (427) is fixedly installed inside the bottom plate (421).

8. A forging die for a bicycle crank according to claim 7, characterized in that: The inner wall of the bottom plate (421) is fixedly installed with the water tank (411), the inner wall of the bottom plate (421) is fixedly installed with the first hydraulic telescopic rod (415), and the water outlet (416) is opened inside the bottom plate (421).

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