Belt pulley forging device and forging process

Abstract

The invention provides a belt pulley forging device and process, and belongs to the technical field of belt pulley production. Comprising a machining platform, the machining platform comprises a pressure-bearing platform, a material preparation platform and a hydraulic machine, the pressure-bearing platform is provided with a bottom die located at the vertical center position of the hydraulic machine, softened blanks are placed outside the material preparation platform, and the softened blanks are machined to form a formed component and then stand outside the bottom die. According to the device, the composite die is arranged, so that the die assembled by the device can be in an unfolded state in a to-be-machined state, the whole covering of the die on a softened blank is facilitated, and in the forging and pressing descending process, the die is mutually closed and assembled and horizontally and automatically demolded after forging and pressing are completed; according to the device, the three actions of feeding, discharging and collecting can be combined in the same circumferential operation range, the number of carrying equipment is reduced, meanwhile, the occupied area of the equipment is reduced, and the carrying efficiency of the device is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of pulley production, and in particular to a pulley forging device and a forging process. Background Art

[0002] A pulley is a mechanical transmission device that transmits power via a belt and is widely used in industry, agriculture, and transportation. Pulleys typically consist of a hub, spokes, and rim. Materials include cast iron, aluminum alloy, and engineering plastics, depending on the load and environment. During operation, the driving and driven pulleys are connected by a belt, using friction or meshing to transfer torque, achieving power transmission and speed regulation.

[0003] Pulley forging is a core method for manufacturing high-performance transmission components through plastic deformation, a process that dates back to the early days of metalworking technology. Forging utilizes impact or pressure to plastically deform the metal blank, forming the hub, spokes, and rim structure. This process refines the grain size through recrystallization, significantly improving the material's density and mechanical properties. Compared to casting, forged pulleys offer advantages such as continuous fiber structure, the absence of shrinkage and porosity defects, and a 30%-50% increase in tensile strength. These forged pulleys are particularly well-suited for high-load, high-speed applications, such as those in construction machinery, wind power equipment, and heavy-duty vehicles.

[0004] Most existing pulley forging dies are assembled to complete the internal space structure. After the parts are fixed by bolts, softened forging raw materials are filled into the interior. Finally, the raw materials are squeezed by a hydraulic press to fill the internal space to form the component shape. After the hydraulic press is separated from the mold, the molds are disassembled one by one and the pulley components are taken out. Finally, the pulley is moved to other areas to naturally dissipate heat and return to normal temperature. Each time forging, the mold needs to be disassembled repeatedly, which is time-consuming. In addition, the wear of the mold connection during the repeated disassembly process will also affect the mold accuracy. In addition, if manual handling is not required, the handling robot arm of the corresponding step will also increase the corresponding cost. Therefore, the present application provides a pulley forging device and forging process to meet the needs. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a pulley forging device and a forging process to solve the existing problems.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A pulley forging device includes a processing platform, the processing platform including a pressure-bearing platform, a material preparation platform, and a hydraulic press. The pressure-bearing platform is provided with a bottom die at the vertical center of the hydraulic press. Softened rough stock is placed outside the material preparation platform. After the softened rough stock is processed into a formed component, it stands outside the bottom die.

[0008] A composite die, which is used to forge and form the softened raw material, and is expanded and demoulded through its own structure after processing. The composite die is detachably connected to the outside of the hydraulic press;

[0009] A conveying assembly is used to transfer the softened raw material to the composite die for forging and forming a formed component, and to transfer and collect the formed component again after the formed component is formed. A collection bin is provided on the outside of the processing platform, and guide rails are evenly distributed on the outside of the collection bin.

[0010] Optionally, the composite mold includes a base, an inner straight portion, an outer wheel portion, an inner ring portion and a combination unit. The base is detachably connected to the end of the hydraulic press. There are multiple groups of combination units that are distributed circumferentially outside the base.

[0011] Optionally, the bottom of the base is in a truncated cone shape, the inner straight portion is arranged at the bottom of the base, the outer wheel portion is arranged at the bottom of the inner straight portion, and the inner ring portion is arranged at the inner center of the inner straight portion and the outer wheel portion.

[0012] Optionally, a guide groove is provided at the inclined surface of the base cone, a connecting portion is provided at the inner wall of the inclined surface of the combination unit, the connecting portion is detachably connected to the guide groove, an outer straight portion is provided on the inner side of the combination unit, a wheel edge portion is provided at the bottom of the combination unit, and an inner wheel portion is provided between the outer straight portion and the wheel edge portion.

[0013] Optionally, the forming component includes an outer groove and an inner groove, the inner ring portion is used to forge the center of the softened raw material to form the inner groove, and the outer wheel portion and the inner wheel portion are used to forge to form the outer groove.

[0014] Optionally, the transport assembly includes a transfer motor, a hydraulic push rod, a clamp and a column. The transfer motor is disassembled and connected to the outside of the pressure platform, the hydraulic push rod is disassembled and connected to the end of the transfer motor, the clamp is disassembled and connected to the end of the hydraulic push rod, a slider is provided at the bottom of the column, and the column is slidably connected to the inside of the guide rail through the slider.

[0015] Optionally, there are multiple groups of sliders that are evenly distributed inside the guide rail, the lifting height of the transfer motor is greater than the plane of the pressure platform, and the height of the column is lower than the plane of the pressure platform.

[0016] Optionally, the clamping claw is used to clamp the outer groove for lifting and transfer, the hydraulic push rod is used for positioning and adjustment, and the transfer motor is used for movement direction adjustment.

[0017] Optionally, the method includes the following steps: in the initial state, the transport component faces the material preparation platform, after the softened wool material is placed outside the material preparation platform, the clamping claws are opened to clamp the softened wool material, the transfer motor is turned on to rotate it toward the bottom mold and the clamping claws are loosened to place it after it is aligned, and the hydraulic press is turned on to drive the composite mold to descend as a whole. In the initial state, the combination unit expands outward along the inclined surface of the base under the action of gravity. During the descent of the composite mold, the combination unit contacts the pressure platform and gradually retracts toward the center. At the same time, the inner straight part, the outer wheel part and the inner ring part are forged, and a restricted space is formed after the combination unit is closed. The initial shape of the formed component is formed by forging, and then the inner ring is opened to continue extrusion to completely fill the softened raw material to complete the forging and forming. The hydraulic press is turned on again to lift. At this time, the base is lifted first, and the combined unit radiates outward along the inclined surface of the base under the pull of gravity and completes the horizontal demolding. After the connecting part reaches the bottom of the guide groove, it follows the base to lift and expose the processed formed component. The hydraulic push rod and clamp are turned on again to clamp the formed component, and the transfer motor is turned on to transfer the formed component to the top of the empty column and then the clamp is released to collect the formed component outside the column. Finally, the transfer motor is turned on to rotate to the preparation platform to complete the reset.

[0018] Compared with the prior art, the present invention has at least the following beneficial effects:

[0019] In the above scheme, by setting up a composite mold, the mold assembled by the device can be in an expanded state when waiting to be processed, which facilitates the mold to cover the entire softened raw material, and enables the mold to complete the mutual closing assembly during the forging process and the horizontal automatic demolding after the forging is completed.

[0020] By setting up the handling components, the device can combine the three actions of "loading-unloading-collecting" within the same circular operating range, reducing the number of handling equipment and the equipment footprint, thereby greatly improving the handling efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable one skilled in the art to make and use the invention.

[0022] Figure 1 It is a schematic diagram of the loading action of the processing device;

[0023] Figure 2 It is a schematic diagram of the forging action of the processing device and the composite die;

[0024] Figure 3 The exploded diagram of the internal structure of the processing device;

[0025] Figure 4 It is a partial structural schematic diagram of the processing device;

[0026] Figure 5 The exploded diagram of the internal structure of the composite mold;

[0027] Figure 6 This is a schematic diagram of the overall appearance of the column;

[0028] Figure 7 is a schematic diagram of the overall appearance of the formed component;

[0029] 1. Processing platform; 101. Pressure platform; 102. Material preparation platform; 103. Hydraulic press; 104. Softened raw material; 105. Bottom mold; 2. Composite mold; 201. Base; 202. Guide groove; 203. Inner straight part; 204. Outer wheel part; 205. Inner ring part; 206. Combination unit; 207. Connecting part; 208. Outer straight part; 209. Inner wheel part; 210. Wheel edge part; 3. Handling assembly; 301. Transfer motor; 302. Hydraulic push rod; 303. Clamp; 304. Collection bin; 305. Guide rail; 306. Slider; 307. Column; 4. Forming component; 401. Outer groove; 402. Inner groove.

[0030] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0031] The following describes a medical transport bed provided by the present invention in detail with reference to the accompanying drawings and specific embodiments. It is also noted that, for the sake of completeness, the following embodiments are best and preferred embodiments, and those skilled in the art may employ alternative implementations for known technologies. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0032] It should be noted that references in the specification to "one embodiment," "an embodiment," "an exemplary embodiment," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not every embodiment necessarily includes such specific features, structures, or characteristics. In addition, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of persons skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0033] In general, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending at least in part on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0034] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” means not only “directly on” something but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” means not only “on” or “above” something but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0035] Additionally, spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as illustrated in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein should be similarly interpreted accordingly.

[0036] like Figures 1 to 7 As shown, an embodiment of the present invention provides a pulley forging device and forging process, including a processing platform 1, the processing platform 1 including a pressure platform 101, a material preparation platform 102 and a hydraulic press 103, the pressure platform 101 is located at the vertical center of the hydraulic press 103 and is provided with a bottom die 105, a softened raw material 104 is placed outside the material preparation platform 102, and the softened raw material 104 is processed to form a formed component 4 and then stands outside the bottom die 105;

[0037] The composite die 2 is used to forge the softened raw material 104 and expand and demould after processing through its own structure. The composite die 2 is detachably connected to the outside of the hydraulic press 103;

[0038] The conveying assembly 3 is used to transfer the softened raw material 104 to the composite mold 2 for forging to form a formed component 4, and to transfer and collect it again after the formed component 4 is formed. A collection bin 304 is provided on the outside of the processing platform 1, and guide rails 305 are evenly distributed on the outside of the collection bin 304.

[0039] After the material 104 is placed on the outside of the material preparation platform 102, the hydraulic push rod 302 is turned on to adjust the clamping jaws 303 to be concentric with the softened material 104, and then the clamping jaws 303 are opened to clamp the softened material 104, and then the transfer motor 301 is turned on to rotate it toward the bottom die 105 and release the clamping jaws 303 after the alignment position is completed. The hydraulic press 103 is turned on to drive the composite die 2 to descend as a whole. During the forging and descending process, the combination unit 206 expands outward along the inclined surface of the base 201 under the action of gravity. During the descending process of the composite die 2, the combination unit 206 contacts the pressure platform 101 and gradually retracts toward the center. At the same time, the inner straight portion 203, the outer wheel portion 204 and the inner ring portion 205 are forged, and after the combination unit 206 is closed, a restricted space is formed to cooperate with the forging to form the initial shape of the forming component 4. Finally, the inner ring portion 205 continues to descend along the outer straight portion 208 to extrude the softened raw material 104 to completely fill the forging forming, and the hydraulic press 103 is turned on again to lift. At this time, the base 201 is lifted first, and the combination unit 206 radiates outward along the inclined surface of the base 201 under the pull of gravity and completes the horizontal demolding. At the same time, the base 201 is located at the bottom edge of the wheel rim of the forming component 4 to lift and block the forming component 4 to prevent the forming component 4 from following the lifting due to friction. After the connecting portion 207 reaches the bottom end of the guide groove 202, it follows the base 201 to lift and expose the processed forming component 4, and the hydraulic push rod 302 and the clamping jaw 303 are turned on again to clamp the forming component 4, and the transfer motor 301 is turned on to transfer the forming component 4 to the top of the empty column 307, and then the clamping jaw 303 is released to allow the forming component 4 to fall freely and be collected outside the column 307. Finally, the transfer motor 301 is turned on to rotate to the material preparation platform 102 to complete the reset.

[0040] In this embodiment, if Figures 1 to 7 It is shown that when processing softened wool materials 104 of different sizes and models, the base 201 and the combination unit 206 are disassembled and replaced, and the columns 307 outside the guide rail 305 are reasonably arranged according to the diameter of the forming component 4 to prevent collision and dislocation during subsequent loading and collection, and the installation is stopped when the loading is about to reach the smooth end of the top of the column 307. After each batch of columns 307 is filled, the top of the column 307 is grasped and slid outward along the guide rail 305 through the slider 306 to complete the disassembly and separation, and the empty guide rail 305 is installed with the column 307 again for subsequent operations.

[0041] The present invention encompasses any alternatives, modifications, equivalents, and solutions that fall within the spirit and scope of the present invention. To provide a thorough understanding of the present invention, specific details are described in detail below in connection with the preferred embodiments of the present invention, but those skilled in the art will be able to fully understand the present invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of the present invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0042] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A pulley forging device, characterized in that: The invention comprises a processing platform (1), wherein the processing platform (1) comprises a pressure-bearing platform (101), a material preparation platform (102), and a hydraulic press (103); the pressure-bearing platform (101) is provided with a bottom mold (105) at a vertical center position of the hydraulic press (103); a softened rough material (104) is placed outside the material preparation platform (102); the softened rough material (104) is processed to form a formed component (4) and then stands outside the bottom mold (105); A composite die (2) is used for forging and forming the softened raw material (104), and is expanded and demoulded through its own structure after processing, and the composite die (2) is detachably connected to the outside of the hydraulic press (103); A transport assembly (3) is provided, wherein the transport assembly (3) is used to transfer the softened raw material (104) to the composite die (2) for forging to form a formed component (4), and to transfer and collect the raw material again after the formed component (4) is formed. A collection bin (304) is provided outside the processing platform (1), and guide rails (305) are evenly distributed outside the collection bin (304).

2. A pulley forging device according to claim 1, characterized in that: The composite mold (2) comprises a base (201), an inner straight portion (203), an outer wheel portion (204), an inner ring portion (205), and a combination unit (206); the base (201) is detachably connected to the end of the hydraulic press (103); and the combination units (206) are provided in multiple groups and are circumferentially distributed outside the base (201).

3. A pulley forging device according to claim 2, characterized in that: The bottom of the base (201) is in a truncated cone shape, the inner straight portion (203) is arranged at the bottom of the base (201), the outer wheel portion (204) is arranged at the bottom of the inner straight portion (203), and the inner ring portion (205) is arranged at the inner center of the inner straight portion (203) and the outer wheel portion (204).

4. A pulley forging device according to claim 2, characterized in that: A guide groove (202) is provided on the oblique surface of the truncated cone of the base (201); a connecting portion (207) is provided on the inner wall of the oblique surface of the combination unit (206); the connecting portion (207) is detachably connected to the guide groove (202); an outer straight portion (208) is provided on the inner side of the combination unit (206); a wheel edge portion (210) is provided on the bottom of the combination unit (206); and an inner wheel portion (209) is provided between the outer straight portion (208) and the wheel edge portion (210).

5. A pulley forging device according to claim 3 or 4, characterized in that: The forming component (4) comprises an outer groove (401) and an inner groove (402); the inner ring portion (205) is used to forge the center of the softened raw material (104) to form the inner groove (402); and the outer wheel portion (204) and the inner wheel portion (209) are used to forge to form the outer groove (401).

6. A pulley forging device according to claim 1, characterized in that: The transport assembly (3) comprises a transfer motor (301), a hydraulic push rod (302), a clamping claw (303) and a column (307); the transfer motor (301) is detachably connected to the outside of the pressure-bearing platform (101); the hydraulic push rod (302) is detachably connected to the end of the transfer motor (301); the clamping claw (303) is detachably connected to the end of the hydraulic push rod (302); a slider (306) is provided at the bottom of the column (307); and the column (307) is slidably connected to the inside of the guide rail (305) via the slider (306).

7. A pulley forging device according to claim 6, characterized in that: The sliders (306) are provided in multiple groups and are evenly distributed inside the guide rail (305). The lifting height of the transfer motor (301) is greater than the plane of the pressure platform (101), and the height of the column (307) is lower than the plane of the pressure platform (101).

8. A pulley forging device according to claim 6, characterized in that: The clamping claw (303) is used to clamp the outer groove (401) for lifting and transferring, the hydraulic push rod (302) is used for positioning and adjustment, and the transfer motor (301) is used for movement direction adjustment.

9. A pulley forging process according to claims 1-8, characterized in that: The method comprises the following steps: in an initial state, the transport component (3) faces the material preparation platform (102); after the softened raw material (104) is placed outside the material preparation platform (102), the clamping claw (303) is opened to clamp the softened raw material (104); the transport motor (301) is turned on to rotate it toward the bottom mold (105); after the position is aligned, the clamping claw (303) is released to place it; the hydraulic press (103) is turned on to drive the composite mold (2) to descend as a whole; in the initial state, the combination unit (206) expands outward along the inclined surface of the base (201) under the action of gravity; during the descending process of the composite mold (2), the combination unit (206) contacts the pressure platform (101) and gradually retracts toward the center; at the same time, the inner straight portion (203), the outer wheel portion (204) and the inner ring portion (205) are forged; at the same time, a restricted space is formed after the combination unit (206) is closed to cooperate with the forging The initial shape of the formed component (4) is formed, and then the inner ring portion (205) is opened to continue extrusion to completely fill the softened raw material (104) to complete the forging forming. The hydraulic press (103) is opened again to lift. At this time, the base (201) is lifted first, and the combination unit (206) is pulled by gravity to radiate and diffuse outward along the inclined surface of the base (201) and complete the horizontal demoulding. After the connecting portion (207) reaches the bottom end of the guide groove (202), it follows the base (201) to lift and expose the processed formed component (4). The hydraulic push rod (302) and the clamping claw (303) are opened again to clamp the formed component (4). The transfer motor (301) is opened to transfer the formed component (4) to the top of the empty column (307) and then the clamping claw (303) is released to allow the formed component (4) to be loaded and collected outside the column (307). Finally, the transfer motor (301) is opened to rotate to the material preparation platform (102) to complete the reset.

Images