End face blanking device of clutch hub

Abstract

The utility model discloses a clutch hub end face blanking device which comprises an upper die assembly, a working part assembly and a lower die assembly, the upper die assembly and the lower die assembly are connected with an upper table top and a lower table top of a punching machine respectively, and the working part assembly comprises a punch, a guide block, a nitrogen spring and a pressing plate. A nitrogen spring connected with the upper die assembly is correspondingly arranged at the end of one side of the punch, a connecting rod is arranged at the end of the side of the punch, the connecting rod is movably connected with the upper die assembly to form a movable suspension structure, in addition, the guide block and the punch are correspondingly arranged, the end face of one side of the guide block makes contact with the punch, and the guide block is connected with the upper die assembly. The lower die assembly comprises a lower cutter block corresponding to the upper ejector block, and the lower cutter block corresponds to the punch. By means of the end face blanking device of the clutch hub, the number of annular edge cutting procedures can be effectively reduced, the production efficiency is improved, a cut is smoother after edge cutting is completed, and then the product quality is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of clutch hub manufacturing equipment, specifically a clutch hub end face punching device. Background Technology

[0002] The clutch hub is an important component in a dual-clutch automatic transmission for passenger cars, playing a role in transmitting torque and providing fixation and support during power transmission.

[0003] Currently, domestic automotive powertrain component manufacturers often use stamping and deep drawing processes to form cup-shaped hub structures, and combine these with extrusion or bulging processes to create internal and external toothed structures to produce clutch hubs with internal and external toothed sidewalls. During the internal and external toothing process, due to material anisotropy, uneven thickness, inaccurate positioning, or uneven die clearance, the top of the formed workpiece will be uneven. Therefore, for parts requiring flush and aesthetically pleasing ends, a trimming process is necessary. Currently, the trimming process uses ordinary trimming methods, such as trimming flash with simple dies or trimming on lathes or spinning machines, which have drawbacks such as failing to meet tolerance requirements, poor burr quality, uneven joints, and low work efficiency. Utility Model Content

[0004] The purpose of this invention is to provide an end face punching device for a clutch hub to solve one or more of the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model discloses an end face blanking device for a clutch hub. The end face blanking device is mounted on a punch press and includes an upper die assembly, a working part assembly, and a lower die assembly. The upper die assembly and the lower die assembly are respectively connected to the upper and lower table surfaces of the punch press. The working part assembly is connected to the upper die assembly and is correspondingly arranged with the lower die assembly.

[0006] The working component includes a punch, a guide block, a nitrogen spring, and a pressure plate. One side of the punch is provided with a nitrogen spring that is connected to the upper die assembly, and a connecting rod is provided on the side of the punch. The connecting rod is movably connected to the upper die assembly. The guide block is provided with a corresponding punch, and one side of the guide block is in contact with the punch. The guide block is connected to the upper die assembly.

[0007] The lower die assembly includes a lower cutting block that is corresponding to the upper top block, and the lower cutting block is corresponding to the punch.

[0008] In some embodiments, the punch is provided with four guide blocks on its outer side, the four guide blocks corresponding to the front, rear, left and right outer surfaces of the punch respectively.

[0009] In some embodiments, the upper mold assembly includes a fixed base, an upper template, a pad, and an upper base plate. The fixed base is connected to the upper template, the upper template is connected to the pad, the pad is connected to the upper base plate, the upper base plate is connected to the upper platform, the nitrogen spring is connected to the upper base plate, the guide block is connected to the fixed base, the top of the connecting rod passes through the upper template and is connected to the pressure plate, the pressure plate is sleeved on the guide rod, and the guide rod is connected to the upper template.

[0010] In some embodiments, the guide rod is a stripper screw.

[0011] In some embodiments, the working part assembly further includes an upper push block connected to the other end of the punch, the lower die assembly includes a lower float block, the lower float block is correspondingly arranged with the upper push block, a lower cutter block is arranged outside the lower float block, and an elastic element is provided at the bottom of the lower float block.

[0012] In some embodiments, the lower die assembly further includes a lower base plate, a lower fixed plate, and a baffle. The lower base plate is connected to the lower table surface of the punch press, the lower fixed plate is connected to the lower base plate, and the baffle, the cutting block, and the lower floating block are all disposed on the lower fixed plate. The baffle is sleeved on the outside of the lower floating block, the cutting block is disposed between the baffle and the lower floating block, and the elastic element is disposed between the lower floating block and the lower base plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are: through the corresponding design of the punch and the outer surface of the punch and the outer surface of the guide block, the trajectory of the punch movement is effectively changed, the edge trimming process is reduced, the production efficiency is improved, and the cut end face after the edge trimming operation is completed is flatter, which effectively improves the quality of the product. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the end face punching device of the clutch hub in some embodiments of this utility model.

[0015] Figure 2 This is a schematic diagram of the guide block structure in some embodiments of this utility model;

[0016] Figure 3 This is a schematic diagram of the punch structure in some embodiments of this utility model. Detailed Implementation

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] See also Figures 1 to 3 The figure shows a preferred embodiment of the present invention, which discloses an end face punching device for a clutch hub. The end face punching device for the clutch hub is installed on a punch press. The end face punching device for the clutch hub includes an upper die assembly, a working part assembly, and a lower die assembly. The upper die assembly and the lower die assembly are respectively connected to the upper table and the lower table of the punch press. The working part assembly is connected to the upper die assembly and is correspondingly arranged with the lower die assembly.

[0019] The upper mold assembly includes a fixed base 10, an upper template 11, a pad 15, and an upper base plate 16. The fixed base 10 is connected to the upper template 11, the upper template 11 is connected to the pad 15, the pad 15 is connected to the upper base plate 16, and the upper base plate 16 is connected to the upper table of the punch press.

[0020] The lower die assembly includes a lower base plate 1, a lower fixed plate 3, a baffle 4, a cutting block 5, and a lower floating block 6. The lower base plate 1 is connected to the lower table of the punch press, and the lower fixed plate 3 is connected to the lower base plate 1. The baffle 4, the cutting block 5, and the lower floating block 6 are all mounted on the lower fixed plate 3. The baffle 4 is sleeved on the outside of the lower floating block 6, and the cutting block 5 is located between the baffle 4 and the lower floating block 6. An elastic element, which can be a spring, is provided between the lower floating block 6 and the lower base plate 1.

[0021] In some specific implementations, a pad 2 is provided between the lower fixed plate 3 and the lower base plate 1.

[0022] The working components include an upper top block 7, a punch 8, a guide block 9, and a nitrogen spring 14. The upper top block 7 is connected to one end of the punch 8, and the nitrogen spring 14 is correspondingly provided on the other end of the punch 8. The nitrogen spring 14 is connected to the upper base plate 16. The guide block 9 is correspondingly provided to the punch 8, and one end face of the guide block 9 is in contact with the punch 8. The guide block 9 is connected to the fixed seat 10. A connecting rod is movably connected to the top of the punch 8. The upper template 11 is provided with a mounting hole. The top of the connecting rod passes through the mounting hole and connects to the pressure plate 13. The guide rod 12 passes through the pressure plate 13 and connects to the upper template 11. The guide rod 12 described here can be a stripper screw.

[0023] In some specific implementations, the outer side of the punch 8 is provided with four guide blocks 9 corresponding to the punch 8. The four guide blocks 9 correspond to the front, rear, left, and right outer surfaces of the punch 8, respectively. These four outer surfaces are designed with irregularly shaped guide surfaces in different height directions. For example, the outer surface of the punch 8 is a concave V-shaped groove 801; the outer surface of the guide blocks 9 is provided with corresponding irregularly shaped surfaces, such as a convex V-shaped block 901. Through the structural design of this working part component, when the punch 8 comes into contact with the guide blocks 9, the outer surface of the punch 8 will cooperate with the outer surface of the corresponding guide block 9 to guide and change the running trajectory of the punch.

[0024] The working principle of the above-mentioned end face punching device for the clutch hub is as follows:

[0025] The clutch hub, which requires trimming, is placed on the lower float 6. The lower float 6, under the action of the elastic element, pushes the clutch hub upwards. The press table moves the upper die assembly and the working parts connected to the upper die assembly downwards. The upper push block 7, connected to the bottom of the punch 8, first contacts the clutch hub. The upper table continues to move downwards with the upper die assembly and the working parts. The nitrogen spring 14, in contact with the punch 8, begins to be compressed. Simultaneously, the clutch hub and the lower float 6 are compressed, and the elastic element below the lower float 6 begins to contract and move downwards. As the upper platform continues to descend, the elastic element contracts continuously, and the clutch hub moves to the lower die limit point (at which point the elastic element stops contracting). The clutch hub and the lower float 6 stop moving, and the upper platform continues to descend. The guide block 9 continues to descend with the upper die assembly. Because the punch 8 is designed with concave V-shaped guide surfaces at different positions in the height direction, the left guide block 9 (convex V-shaped block 901) meshes with the punch 8 (concave V-shaped groove 801), while the right guide block 9 has a gap with the punch 8. Through the V-shaped meshing on the left, the punch 8 will move to the right. The four sides mesh in sequence, forming a circular motion trajectory.

[0026] This creates a circular motion trajectory, thereby removing the annular waste material from the clutch hub.

[0027] All of the above-mentioned undisclosed matters can be implemented using existing technologies, so they will not be elaborated here.

[0028] The aforementioned end face punching device for clutch hubs can also be used for the removal of annular scrap from other similar parts. It is only necessary to change the design of the lower floating block 6, upper top block 7, etc., according to different needs of products requiring annular scrap removal, so as to avoid damage to the original structure of the product during the annular scrap removal process.

[0029] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set", "install", "connect", and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0031] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A clutch hub end face punching device, wherein the clutch hub end face punching device is mounted on a punch press, characterized in that: The end face punching device for the clutch hub includes an upper die assembly, a working part assembly, and a lower die assembly. The upper die assembly and the lower die assembly are respectively connected to the upper table and the lower table of the punch press. The working part assembly is connected to the upper die assembly and is correspondingly arranged with the lower die assembly. The working component includes a punch, a guide block, a nitrogen spring, and a pressure plate. One side of the punch is provided with a nitrogen spring that is connected to the upper die assembly, and a connecting rod is provided on the side of the punch. The connecting rod is movably connected to the upper die assembly. The guide block is provided with a corresponding punch, and one side of the guide block is in contact with the punch. The guide block is connected to the upper die assembly. The lower die assembly includes a lower cutting block that is corresponding to the upper top block, and the lower cutting block is corresponding to the punch.

2. The end face punching device for a clutch hub according to claim 1, characterized in that: The punch has four guide blocks on its outer side, which correspond to the front, back, left and right outer surfaces of the punch, respectively.

3. The end face punching device for a clutch hub according to claim 1, characterized in that: The upper mold assembly includes a fixed base, an upper template, pads, and an upper base plate. The fixed base is connected to the upper template, the upper template is connected to the pads, the pads are connected to the upper base plate, and the upper base plate is connected to the upper platform. The nitrogen spring is connected to the upper base plate, the guide block is connected to the fixed base, the top of the connecting rod passes through the upper template and is connected to the pressure plate, the pressure plate is sleeved on the guide rod, and the guide rod is connected to the upper template.

4. The end face punching device for a clutch hub according to claim 3, characterized in that: The guide rod is a material unloading screw.

5. A clutch hub end face punching device according to any one of claims 1-4, characterized in that: The working part assembly also includes an upper push block connected to the other end of the punch, and the lower die assembly includes a lower floating block, which is correspondingly arranged with the upper push block. The lower cutting block is arranged outside the lower floating block, and the bottom of the lower floating block is provided with an elastic element.

6. The end face punching device for a clutch hub according to claim 5, characterized in that: The lower die assembly also includes a lower base plate, a lower fixed plate, and a baffle. The lower base plate is connected to the lower table surface of the punch press, and the lower fixed plate is connected to the lower base plate. The baffle, the cutting block, and the lower floating block are all disposed on the lower fixed plate. The baffle is sleeved on the outside of the lower floating block, the cutting block is disposed between the baffle and the lower floating block, and the elastic element is disposed between the lower floating block and the lower base plate.

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