Trimming, punching and chambering composite die for automobile aluminum hub machining

Abstract

The utility model provides a trimming, punching and chambering composite die for machining an automobile aluminum hub, which belongs to the technical field of automobile hubs and comprises a chambering lower base, a trimming, punching and chambering composite component and a crushed material storage component. The trimming, punching and chambering composite assembly comprises an untrimmed forge piece movably connected to the top of the chambering lower die, a trimming cutter is correspondingly arranged at the top of the untrimmed forge piece, a chambering upper die is arranged at the top of the trimming cutter, a plurality of damping rod springs are arranged at the bottom of the inner wall of the chambering upper die, and pressing plates are arranged at the bottoms of the damping rod springs. A plurality of window grooves are formed in the pressing plate, a plurality of connecting rods are arranged at the bottom of the inner wall of the upper reaming die, window trimming cutters are arranged at the bottoms of the connecting rods, the outer walls of the window trimming cutters are slidably connected with the window grooves, and a punch is arranged at the bottom of the inner wall of the upper reaming die.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile wheels, and particularly relates to a trimming, punching and expanding composite die for machining automobile aluminum wheels. Background Art

[0002] The forged aluminum alloy wheel hub is an aluminum alloy bar that undergoes a forging process to become a straight barrel-shaped forging blank. The straight barrel-shaped forging blank is then expanded in a 600-ton to 800-ton hydraulic press to obtain a trumpet-shaped conical barrel-shaped forging blank. The blank is then subjected to a spinning process to obtain the final forged blank of the aluminum alloy wheel hub. After searching, the application number "CN201620184620.X" discloses "a die for expanding, trimming and punching of forged aluminum alloy wheel hubs". It records that "this set of dies integrates the expanding process of forged aluminum alloy wheel hubs, the trimming process for removing burrs or flash generated on the rim of the forged aluminum alloy wheel hub forging blank, and the de-hole process for removing the aluminum alloy sealing layer with a center hole thickness of more than 8mm of the forged aluminum alloy wheel hub forging blank, and forms a forged aluminum alloy wheel hub forging blank expanding, trimming and punching process, thereby completing the expanding process of forged aluminum alloy wheel hubs, the trimming process for removing burrs or flash generated on the rim of the forged aluminum alloy wheel hub forging blank, and the removal process. The punching process of the aluminum alloy sealing layer of the forged aluminum alloy wheel forging blank with a center hole thickness of more than 8mm is used; it greatly improves the production efficiency of the existing forged aluminum alloy wheel and reduces the previous cost. The set die is used to integrate the expansion process of the forged aluminum alloy wheel, the trimming process for removing the flash or burr generated by the wheel rim of the forged aluminum alloy wheel forging blank, and the de-hole process for removing the aluminum alloy sealing layer of the forged aluminum alloy wheel forging blank with a center hole thickness of more than 8mm into a forged aluminum alloy wheel forging blank expansion, trimming and punching process. The expansion process of the forged aluminum alloy wheel, the trimming process for removing the flash or burr generated by the wheel rim of the forged aluminum alloy wheel forging blank, and the punching process for removing the aluminum alloy sealing layer of the forged aluminum alloy wheel forging blank with a center hole thickness of more than 8mm are indeed completed at one time; it greatly improves the production efficiency of the existing forged aluminum alloy wheel and reduces the previous cost. However, the above comparative documents still have the following problems in actual use:

[0003] In actual use, the operation is rather complicated, resulting in poor work efficiency, and the scraps generated after trimming cannot be processed.

[0004] Based on this, it is extremely practical to provide a composite mold that can be easily operated and quickly process scraps after trimming. Utility Model Content

[0005] The purpose of the utility model is to provide a composite die for trimming, punching and expanding holes for processing automobile aluminum wheels, aiming to solve the above technical problems.

[0006] The embodiment of the utility model provides a trimming, punching and expanding composite die for processing automobile aluminum wheel hubs, comprising an expanding lower base, a trimming, punching and expanding composite component and a scrap storage component.

[0007] Wherein, a hole enlarging lower die is provided on the top of the hole enlarging lower base;

[0008] A trimming, punching and reaming composite component, the trimming, punching and reaming composite component includes an untrimmed forging movably connected to the top of the reaming lower die, a flash knife is correspondingly provided on the top of the untrimmed forging, a reaming upper die is provided on the top of the flash knife, a plurality of damping rod springs are provided at the bottom of the inner wall of the reaming upper die, a plurality of damping rod springs are provided at the bottom of the damping rod springs, a plurality of window grooves are opened inside the pressure plate, a plurality of connecting rods are provided at the bottom of the inner wall of the reaming upper die, a plurality of window trimming knives are provided at the bottom of the connecting rods, the outer walls of the plurality of window trimming knives are slidably connected to the window grooves, and a punch is provided at the bottom of the inner wall of the reaming upper die;

[0009] The scrap material storage assembly includes a feed pipe sealed and connected to the bottom of the reaming lower base, the bottom of the feed pipe is sealed and connected to a connecting seat, the bottom of the connecting seat is provided with two supporting legs, the two supporting legs are internally slidably connected to a storage box, one end of the storage box is provided with a gripping handle, one side of one of the supporting legs is provided with a hinged seat, one side of the hinged seat is hinged to a connecting frame, the bottom of the connecting frame is provided with a cutting knife, and one side of the connecting frame is provided with a gripping rod.

[0010] In one embodiment of the present invention, the hole-expanding lower die and the hole-expanding upper die are both cast from metal chromium.

[0011] In one embodiment of the present invention, the interiors of the reaming lower base and the reaming lower die are both provided with window grooves identical to those in the interior of the pressing plate.

[0012] In one embodiment of the present invention, the interiors of the plurality of damping rod springs are coated with lubricating oil.

[0013] In one embodiment of the present invention, the burring knife, the window trimming knife and the cutting knife are all made of metal tungsten.

[0014] In one embodiment of the present invention, the outer wall of the gripping rod is provided with anti-slip grooves.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1) The flash cutter is provided to facilitate the user to place the untrimmed forging on the reaming lower die. The entire reaming upper die is fixed to the upper limit of the external machine. At this time, the user drives the reaming upper die downward through the external machine, and then presses the entire reaming upper die downward quickly. When the distance to the forging is -mm, the downward pressing speed changes from fast to slow. At this time, the pressing plate first contacts the untrimmed forging, and the entire reaming upper die continues to press down slowly. The damping rod spring is compressed, and the punch, flash cutter, and window trimming cutter successively contact the forging to cut off the corresponding parts. After the trimming is completed, the entire reaming upper die starts to return, and the damping rod spring recovers its deformation, exerting force on the pressing plate to push the trimmed forging out of the die, thereby achieving the purpose of simple operation and trimming and punching;

[0017] 2) By providing a storage box, after the cutting and punching is completed, the scraps will fall into the storage box through the window slot for storage. The subsequent user will pull out the storage box by holding the handle and then clean the internal scraps. The ring cut by the burring knife will fall on the connecting seat. At this time, the user will hold the holding rod and lift the holding rod upward, thereby driving the connecting frame to pass through the hinged seat so that its end is downward, and then driving the cutting knife to move downward to cut the ring so that the user can take out the ring, thereby facilitating the subsequent collection and processing of the scraps. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the partially exploded structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the hole expansion upper die of the present invention.

[0022] In the figure: 100, reaming lower base; 110, reaming lower die; 200, trimming, punching and reaming composite assembly; 210, untrimmed forging; 220, flash knife; 230, reaming upper die; 240, damping rod spring; 250, pressure plate; 260, connecting rod; 270, window trimming knife; 280, punch; 300, scrap material storage assembly; 310, feeding pipe; 320, connecting seat; 330, supporting leg; 340, storage box; 350, gripping handle; 360, hinged seat; 370, connecting frame; 380, cutting knife; 390, gripping rod. DETAILED DESCRIPTION

[0023] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments 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. Example

[0024] See also Figure 1-3 A trimming, punching and expanding composite die for processing automobile aluminum wheel hubs includes an expanding lower base 100, a trimming, punching and expanding composite component 200 and a scrap storage component 300.

[0025] For details, please refer to Figure 1 A reaming lower die 110 is provided on the top of the reaming lower base 100 .

[0026] See also Figure 1-3 , a trimming, punching and reaming composite component 200, the trimming, punching and reaming composite component 200 includes an untrimmed forging 210 movably connected to the top of the reaming lower die 110, the top of the reaming lower die 110 is movably connected with the untrimmed forging 210, the top of the untrimmed forging 210 is correspondingly provided with a flash knife 220, the top of the flash knife 220 is provided with a reaming upper die 230, the bottom of the inner wall of the reaming upper die 230 is provided with several damping rod springs 240, the bottom of the several damping rod springs 240 is provided with a pressure plate 250, the inside of the pressure plate 250 is provided with several window grooves, the bottom of the inner wall of the reaming upper die 230 is provided with several connecting rods 260, the bottom of the several connecting rods 260 are all provided with window trimming knives 270, the outer walls of the several window trimming knives 270 are all slidably connected to the window groove, and the bottom of the inner wall of the reaming upper die 230 is provided with a punch 280.

[0027] In a specific embodiment, the flash cutter 220 is provided to facilitate the user to place the untrimmed forging 210 on the reaming lower die 110, and the entire reaming upper die 230 is fixed to the upper limit of the external machine. At this time, the user drives the reaming upper die 230 downward through the external machine, and then presses the entire reaming upper die 230 downward quickly. When the distance from the forging is 50-80 mm, the pressing speed changes from fast to slow. At this time, the pressure plate 250 first contacts the untrimmed forging 210, and the entire reaming upper die 230 continues to press down slowly, the damping rod spring 240 is compressed, the punch 280, the flash cutter 220, and the window trimming knife 270 successively contact the forging to cut off the corresponding parts. After the trimming is completed, the entire reaming upper die 230 starts to return, the damping rod spring 240 recovers its deformation, and applies force to the pressure plate 250 to push the trimmed forging out of the die, thereby achieving the purpose of trimming and punching.

[0028] See also Figure 1 The scrap material storage assembly 300 includes a feed pipe 310 sealed and connected to the bottom of the reaming lower base 100, and the bottom of the feed pipe 310 is sealed and connected to a connecting seat 320. Two supporting legs 330 are provided at the bottom of the connecting seat 320. The two supporting legs 330 are internally slidably connected to a storage box 340. A gripping handle 350 is provided at one end of the storage box 340, and a hinged seat 360 is provided on one side of one of the supporting legs 330. A connecting frame 370 is hinged on one side of the hinged seat 360. A cutting knife 380 is provided at the bottom of the connecting frame 370, and a gripping rod 390 is provided on one side of the connecting frame 370.

[0029] In a specific embodiment, a storage box 340 is provided so that after the cutting and punching is completed, the scraps will fall into the storage box 340 through the window slot for storage. The subsequent user pulls out the storage box 340 through the gripping handle 350 and then cleans the internal scraps. The ring cut by the burring knife 220 will fall on the connecting seat 320. At this time, the user grips the gripping rod 390 to lift the gripping rod 390 upward, and then drives the connecting frame 370 to pass through the hinged seat 360 so that its end is downward, and then drives the cutting knife 380 to move downward to cut the ring so that the user can take out the ring, thereby facilitating the subsequent collection and processing of the scraps.

[0030] See also Figure 3 The hole-expanding lower die 110 and the hole-expanding upper die 230 are both made of metal chromium.

[0031] In a specific embodiment, by providing metal chromium, when using the hole-expanding lower die 110 and the hole-expanding upper die 230, the sturdy and durable properties of metal chromium can be utilized to increase the service life of the hole-expanding lower die 110 and the hole-expanding upper die 230.

[0032] See also Figure 3 The interiors of the reaming lower base 100 and the reaming lower die 110 are both provided with window grooves identical to those inside the pressing plate 250 .

[0033] In a specific embodiment, a window groove is provided so that the scraps cut by the window trimming knife 270 can fall into the storage box 340 through the window groove for storage, thereby improving work efficiency and increasing convenience during use.

[0034] See also Figure 3 , the interiors of the plurality of damping rod springs 240 are coated with lubricating oil.

[0035] In a specific embodiment, the provided lubricating oil can facilitate the use of the damping rod spring 240 by utilizing the characteristics of the lubricating oil to reduce wear of the damping rod spring 240 during use, thereby increasing the service life of the damping rod spring 240.

[0036] See also Figure 1-3 The flash knife 220, the window trimming knife 270 and the cutting knife 380 are all made of metal tungsten.

[0037] In a specific embodiment, the metal tungsten is provided to facilitate the use of the burring knife 220, the window trimming knife 270 and the cutting knife 380, making the burring knife 220, the window trimming knife 270 and the cutting knife 380 more sturdy and durable when used.

[0038] See also Figure 1 The outer wall of the gripping rod 390 is provided with anti-slip grooves.

[0039] In a specific embodiment, the anti-slip grooves are provided to facilitate the use of the gripping rod 390 , thereby effectively preventing the user from slipping when gripping the handle, thereby improving stability.

[0040] When in use, first, the flash cutter 220 is provided, which facilitates the user to place the untrimmed forging 210 on the reaming lower die 110, and the entire reaming upper die 230 is fixed to the upper limit of the external machine. At this time, the user drives the reaming upper die 230 downward through the external machine, and then presses the entire reaming upper die 230 downward quickly. When the distance to the forging is 50-80mm, the pressing speed changes from fast to slow. Then, at this time, the pressing plate 250 first contacts the untrimmed forging 210, and the entire reaming upper die 230 continues to press down slowly, the damping rod spring 240 is compressed, the punch 280, the flash cutter 220, and the window trimming knife 270 successively contact the forging to cut off the corresponding parts. After the trimming is completed, the entire reaming upper die 230 starts to return, and the damping rod spring 240 recovers its deformation. A force is applied to the pressure plate 250 to push the trimmed forging out of the die, thereby achieving the purpose of trimming and punching. Then, a storage box 340 is provided, so that after the cutting and punching is completed, the scraps will fall into the storage box 340 through the window slot for storage. Subsequent users pull out the storage box 340 by holding the handle 350, and then clean up the internal scraps. The ring cut by the flash knife 220 will fall on the connecting seat 320. At this time, the user holds the holding rod 390 to lift the holding rod 390 upward, and then drives the connecting frame 370 to make the connecting frame 370 pass through the hinge seat 360 so that its end faces downward, and finally drives the cutting knife 380 to move downward to cut the ring so that the user can take out the ring, thereby facilitating the subsequent collection and processing of the scraps.

[0041] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A composite die for trimming, punching and expanding holes for processing automobile aluminum wheels, characterized in that: include: A hole-reaming lower base (100), wherein a hole-reaming lower die (110) is provided on the top of the hole-reaming lower base (100); A trimming, punching and expanding composite component (200) is provided, wherein the trimming, punching and expanding composite component (200) comprises an untrimmed forging (210) movably connected to the top of an expanding lower die (110), a flash cutter (220) is provided on the top of the untrimmed forging (210), an expanding upper die (230) is provided on the top of the flash cutter (220), and a plurality of damping rod springs (240) are provided on the bottom of the inner wall of the expanding upper die (230). A pressure plate (250) is provided at the bottom of the spring (240), and a plurality of window grooves are opened inside the pressure plate (250). A plurality of connecting rods (260) are provided at the bottom of the inner wall of the reaming upper die (230), and a window trimming knife (270) is provided at the bottom of the plurality of connecting rods (260). The outer walls of the plurality of window trimming knives (270) are slidably connected to the window grooves. A punch (280) is provided at the bottom of the inner wall of the reaming upper die (230). A scrap material storage assembly (300) includes a feed pipe (310) sealed and connected to the bottom of the reaming lower base (100), the bottom of the feed pipe (310) is sealed and connected to a connecting seat (320), the bottom of the connecting seat (320) is provided with two supporting legs (330), the interiors of the two supporting legs (330) are slidably connected to a storage box (340), one end of the storage box (340) is provided with a gripping handle (350), one side of one of the supporting legs (330) is provided with a hinged seat (360), one side of the hinged seat (360) is hinged to a connecting frame (370), the bottom of the connecting frame (370) is provided with a cutting knife (380), and one side of the connecting frame (370) is provided with a gripping rod (390).

2. The composite die for trimming, punching and expanding automobile aluminum wheel hub according to claim 1, characterized in that: The hole-expanding lower die (110) and the hole-expanding upper die (230) are both cast from metal chromium.

3. The composite die for trimming, punching and expanding automobile aluminum wheel hub according to claim 1, characterized in that: The interiors of the reaming lower base (100) and the reaming lower die (110) are both provided with window grooves identical to those in the interior of the pressing plate (250).

4. The composite die for trimming, punching and expanding automobile aluminum wheel hub according to claim 1, characterized in that: The interiors of the plurality of damping rod springs (240) are coated with lubricating oil.

5. The composite die for trimming, punching and expanding automobile aluminum wheel hub according to claim 1, characterized in that: The flash knife (220), the window trimming knife (270) and the cutting knife (380) are all made of metal tungsten.

6. The composite die for trimming, punching and expanding automobile aluminum wheel hub according to claim 1, characterized in that: The outer wall of the gripping rod (390) is provided with anti-slip grooves.

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