Aluminum alloy profile and stamping die thereof

Abstract

The invention discloses an aluminum alloy profile and a stamping die thereof. The sectional material comprises a rod sleeve part and a plate connecting part, the rod sleeve part is provided with a pin hole, and connecting holes are formed in the four corners of the plate connecting part. The die comprises a stamping table, an upper pressing die set, a lower pressing die set and a driving die set. The upper pressing die set and the lower pressing die set are provided with an upper sliding die set and a lower sliding die set which are driven by an adjusting mechanism and can adjust the distance respectively, the adjusting mechanism comprises a worm and gear assembly and a gear and rack assembly, and precise stepless adjustment of the punching distance is achieved. The mold adopts wedge-shaped matching of the side push plate and the sliding lower mold head to realize closing of a mold cavity during profiling. The lower die head is provided with a material cutting guide pipe and a slag pushing rod capable of being inserted for waste removal, and automatic waste removal is achieved. The die is further provided with a reset mechanism linked by an L-shaped angle rod and an automatic discharging device driven by an air cylinder. According to the die, profiles of various hole pitch specifications can be machined through one set of die, the universality is high, the automatic waste removing and discharging functions are integrated, the production flexibility and efficiency are remarkably improved, and the cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of metal profile processing technology, specifically to an aluminum alloy profile for rod installation, and an adjustable hole spacing stamping die for processing the profile. Background Technology

[0002] Aluminum alloys are widely used in construction, transportation, electronics, and machinery due to their low density, high strength, good corrosion resistance, and ease of processing and forming. In structural connectors, aluminum alloy profiles are often used as fixing intermediaries between rods and frames. These profiles typically have a rod sleeve for attaching rods and a plate connecting part for connecting frames. Connecting holes in the plate connecting part allow fasteners such as bolts to pass through.

[0003] In practical applications, due to the diversity of installation locations and frame structures, the hole spacing requirements for connecting holes on these aluminum alloy profiles vary greatly. The traditional processing method involves designing and manufacturing a separate stamping die for each profile with a specific hole spacing. This method results in a large number of dies, high costs, poor production flexibility, and a heavy burden on warehousing and management, making it particularly inconvenient for small-batch, multi-specification production needs.

[0004] Therefore, there is an urgent need for a stamping die that can flexibly adapt to different hole spacing processing requirements in order to improve the versatility of the die, reduce production costs, and increase production efficiency. Summary of the Invention

[0005] One of the objectives of this invention is to provide a structurally sound aluminum alloy profile for rod installation.

[0006] Another objective of this invention is to provide an adjustable hole spacing stamping die for processing the aforementioned aluminum alloy profiles. This die can easily adjust the punching position to adapt to the processing requirements of different connecting hole spacings, thereby improving the applicability and economy of the die. To achieve the above objectives, the present invention adopts the following technical solution: An aluminum alloy profile for fixing rods onto a corresponding plate frame includes a rod sleeve and a plate connecting part. The rod sleeve has a pin hole in the middle for bolting to the rod, and the plate connecting part has connecting holes at the four corners for connecting to the corresponding plate frame.

[0007] A stamping die for processing the aforementioned aluminum alloy profiles includes a stamping table, an upper pressing die, a lower pressing die, and a stamping drive die.

[0008] The upper pressing module is connected to the stamping drive module via an upper template, and the lower pressing module is slidably mounted on the stamping platform via a movable slide. The upper template is connected to the stamping platform via a guide rod assembly and a guide slide, and is located above the lower pressing module. The upper template is connected to the movable slide via an L-shaped angle rod, which is hinged to the stamping platform, with one end connected to the movable slide and the other end abutting against the upper template via a foot rod.

[0009] The upper pressing module includes an upper die base, an upper die head fixed below the upper die base, a side push plate, and two sets of upper sliding modules slidably installed inside the upper die head. Both sets of upper sliding modules are driven by an adjustment mechanism to adjust the distance between them. A punch for punching aluminum alloy profiles is provided in the middle of the upper die head and within each upper sliding module. The punch is connected to the corresponding upper sliding module and the upper die head by a spring, enabling the punch to slide up and down. The upper end of the punch is connected to the punching drive part of the stamping drive module via an end plate.

[0010] The pressing module includes a lower die base, two lower die heads that can slide relative to each other, and two sets of lower sliding modules. The two lower die heads are slidably mounted on a movable slide table via the lower die base. Both sets of lower sliding modules are driven by an adjustment mechanism to adjust the distance between them, so that the lower sliding modules can be aligned with the corresponding upper sliding modules during stamping.

[0011] Both the first and second adjustment mechanisms include a worm gear assembly and a rack and pinion assembly. The worm gear assembly drives the rack and pinion assembly to move, which in turn drives the corresponding sliding modules to move in opposite directions, thereby achieving distance adjustment.

[0012] During the pressing and forming process of the stamping drive module, the side pusher plate abuts against the corresponding lower die head, forming a wedge-shaped side push. This forces the two lower die heads to come together to form a complete pressing mold cavity, which, together with the upper die head, completes the pressing and forming of the aluminum alloy sheet. After the pressing is completed, the punching drive part of the stamping drive module pushes the end plate and punch downward to complete the punching of the connecting hole.

[0013] The lower die head is equipped with a cutting guide tube, which passes through and slides down to connect with the corresponding lower sliding module. The top of the lower sliding module has a discharge hole for the aluminum alloy slag to be punched to fall into the cutting guide tube. A slag pusher is provided on the side of the stamping platform away from the L-shaped angle bar, and the slag pusher is aligned with and can be inserted into the corresponding cutting guide tube. The slag pusher is preferably a hollow tube connected to an external air source.

[0014] The support rod is provided with a discharge channel, which is fixed to the support rod by a mounting bracket and faces the upper pressing module after resetting. A pusher is provided below the upper die head, which is slidably connected to the mounting bracket and driven by a cylinder. It is used to push the profile away from the upper die head after forming, so that it falls into the discharge channel. Beneficial effects

[0015] 1. The stamping die provided by the present invention, by setting independently adjustable upper sliding module and lower sliding module, and equipped with a precision worm gear and rack and pinion composite adjustment mechanism, can accurately and stably adjust the distance between multiple punching stations, so that aluminum alloy profiles with different connecting hole spacings can be processed using the same set of dies, which greatly improves the versatility and applicability of the die and reduces the die manufacturing and management costs.

[0016] 2. The mold adopts a wedge-shaped locking mechanism that combines a side push plate with a sliding lower die head. During the pressing process, the separated lower die head automatically closes to form a complete cavity, ensuring the pressing quality. After the stamping is completed, it can automatically separate, which facilitates demolding and subsequent waste cleaning.

[0017] 3. An efficient waste cleaning system is integrated. It collects punching waste through the cutting guide pipe and automatically inserts the slag pusher into the guide pipe using the mold reset action. The waste is then blown out by air pressure, realizing automatic collection and cleaning of waste, keeping the mold working area clean and improving production efficiency.

[0018] 4. An automatic unloading mechanism is set up, which uses a cylinder-driven pusher to push the molded part out of the mold head and slide it down through the unloading channel, realizing automatic demolding and unloading of the part, further improving the level of automation and operational safety.

[0019] 5. The overall structure is ingeniously designed, organically integrating functions such as forming, punching, adjustment, waste removal, and material feeding. It has a high degree of automation, is easy to adjust, and is suitable for flexible production needs of multiple varieties and small batches. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure One ; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure Two ; Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure Three ; Figure 4 This is a three-dimensional structural diagram of the upper pressure module of the present invention. Figure One ; Figure 5 This is a three-dimensional structural diagram of the pressing module of the present invention. Figure One ; Figure 6 This is a front view of the upper pressure module of the present invention; Figure 7 This is a three-dimensional structural diagram of the pressing module of the present invention. Figure Two ; Figure 8 This is an exploded view of the present invention; Figure 9 This is a three-dimensional structural diagram of the aluminum alloy profile of the present invention; The diagram is labeled as follows: 1-Rod sleeve, 2-Sheet metal connection, 3-Pin hole, 4-Connecting hole, 100-Punching table, 200-Upper pressing module, 201-Upper template, 202-Upper die base, 203-Upper die head, 204-Side push plate, 205-Upper sliding module, 206-Punch, 207-Spring, 208-End plate, 210-Adjusting mechanism one, 211-Worm gear assembly, 212-Gear and rack assembly, 213-Drive shaft one, 214-Main gear, 215-Driven gear, 2 16-Transmission gear, 217-Rack, 300-Pressing module, 301-Moving slide, 302-Lower die base, 303-Lower die head, 304-Lower sliding module, 305-Cutting guide tube, 306-Discharge hole, 310-Adjustment mechanism two, 311-Transmission shaft two, 400-Pressing drive module, 500-L-shaped angle rod, 501-Reset spring, 600-Foot stop rod, 601-Discharge channel, 602-Mounting bracket, 603-Pusher, 604-Cylinder, 700-Slag pusher rod. Detailed Implementation

[0021] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0022] Example 1: Aluminum alloy profile like Figure 9 As shown, the aluminum alloy profile in this embodiment is formed by stamping sheet metal using a subsequent die. It mainly includes an integrally formed rod sleeve portion 1 and a sheet metal connecting portion 2. A pin hole 3 is machined in the center of the rod sleeve portion 1 for inserting bolts to fix the rod. A connecting hole 4 is machined at each of the four corners of the sheet metal connecting portion 2 for installing the entire profile onto the corresponding frame using bolts or other fasteners. This profile has a simple structure and is easy to install; it can be used for fixing rods or as a connecting component such as a hinge seat.

[0023] Example 2: Adjustable hole spacing stamping die like Figures 1 to 8 As shown, this embodiment provides a stamping die for processing the aluminum alloy profile described in Embodiment 1.

[0024] The mold is mounted on the stamping table 100. The stamping drive module 400 is mounted on the upper part of the stamping table 100 and has two actuation parts: a pressing and forming drive part and a punching drive part.

[0025] The upper pressing module 200 is connected to the drive end of the stamping drive module 400 via the upper template 201. The lower pressing module 300 is slidably mounted on the table surface of the stamping table 100 via the movable slide 301. The upper template 201 and the frame of the stamping table 100 are connected by a guide rod assembly and a guide slide (simplified in the diagram), ensuring that the upper pressing module 200 moves stably in the vertical direction.

[0026] The movement between the upper template 201 and the movable slide 301 is linked by an L-shaped angle rod 500. The middle of the L-shaped angle rod 500 is hinged to the stamping table 100. One end of the L-shaped angle rod 500 is hinged to the movable slide 301, and the other end abuts against the lower surface of the upper template 201 via an adjustable foot rod 600. When the upper template 201 moves downward, the foot rod 600 presses down this end of the L-shaped angle rod 500, causing the L-shaped angle rod 500 to rotate around its central hinge point. Its other end pulls the movable slide 301 to slide away from the push rod 700. When the upper template 201 moves upward to reset, under the action of the reset spring 501 installed on the L-shaped angle rod 500, the L-shaped angle rod 500 rotates in the opposite direction, pushing the movable slide 301 to reset and slide to the left.

[0027] The upper pressing module 200 includes an upper die base 202, an upper die head 203, a side push plate 204, and two sets of upper sliding modules 205. The upper die base 202 is fixed below the upper template 201, and the upper die head 203 and the side push plate 204 are fixed to the bottom of the upper die base 202. The two sets of upper sliding modules 205 are slidably embedded in the sliding grooves formed inside the upper die head 203. A fixed punch 206 is provided in the middle of the upper die head 203, and each upper sliding module 205 also has a punch 206 inside. The upper ends of all punches 206 abut against a common end plate 208, which is connected to the punching drive part of the stamping drive module 400. A spring 207 is installed between each punch 206 and the corresponding upper die head 203 or upper sliding module 205, so that in the non-punching state, the cutting edge of the punch 206 is slightly higher than the bottom surface of the die head.

[0028] Adjustment mechanism 210 is used to adjust the distance between the two upper sliding modules 205. It includes a worm gear assembly 211 and a gear and rack assembly 212. The worm gear is mounted on the upper mold base 202 via a drive shaft 213, and the worm meshes with it. Manually rotating the worm drives the worm gear. A main gear 214 is mounted on the drive shaft 213. A driven gear 215 is mounted on the top of the upper mold head 203, which meshes with the main gear 214 as simplified by the intermediate gear diagram. The driven gear 215 is coaxial with a transmission gear 216 or connected via a short shaft. The transmission gear 216 simultaneously meshes with two parallel racks 217, with the tooth surfaces of the two racks 217 facing each other. The lower end of each rack 217 is fixedly connected to an upper sliding module 205. When the worm gear rotates, power is transmitted through the worm wheel, drive shaft 213, main gear 214, driven gear 215, and transmission gear 216, driving the two racks 217 to move in opposite or opposite directions in a linear motion. This causes the two upper sliding modules 205 to move closer or further apart synchronously, achieving stepless adjustment of the distance between their upper punches 206. The self-locking characteristic of the worm gear ensures that the adjusted position is firmly locked.

[0029] The pressing module 300 includes a lower die base 302, two lower die heads 303, and two sets of lower sliding modules 304. The lower die base 302 is fixed on a movable slide 301. The two lower die heads 303 are slidably mounted on the lower die base 302, with an initial gap between them. Each set of lower sliding modules 304 is slidably fitted onto the top of one lower die head 303.

[0030] Adjustment mechanism 2 310 is used to adjust the distance between the two sets of lower sliding modules 304, and its principle and structure are similar to adjustment mechanism 1 210. A worm gear is mounted on the lower die base 302 via transmission shaft 2 311, and the worm meshes with it. A main gear 214 is slidably mounted on transmission shaft 2 311 and can slide with the lower die head. A driven gear 215 and a transmission gear 216 linked to it are mounted at the bottom of the lower die head 303. The transmission gear 216 meshes with two racks 217 fixed on the lower die head 303, and the upper end of each rack 217 is fixed to one lower sliding module 304. By rotating the worm, the two lower sliding modules 304 can be driven to slide on their respective lower die heads 303, adjusting the distance between them and ensuring that the blanking hole at their top is aligned with the punch position of the upper sliding module 205 above.

[0031] Each lower die head 303 is vertically fixed with a cutting guide tube 305, which passes through and slides with the corresponding lower sliding module 304. The lower sliding module 304 has a discharge hole 306 at its top, corresponding to the projection of the punch 206. A slag pusher 700 is fixedly installed on the right side of the stamping table 100, away from the hinge point of the L-shaped angle bar, and its position is aligned with the axis of the cutting guide tube 305. The slag pusher 700 is a hollow metal tube connected to an external compressed air source via a flexible hose.

[0032] A mounting bracket 602 is fixed on the foot bar 600. The mounting bracket 602 has an inclined feed channel 601, the high end of which faces the lower part of the upper die head 203 after resetting. A pusher 603 driven by a cylinder 604 is slidably mounted on the mounting bracket 602, and its initial position is located on the side of the upper die head 203.

[0033] Work process: 1. Preparation and adjustment: According to the hole spacing requirements of the connecting holes of the profile to be processed, operate the worm gears of adjustment mechanism 1 210 and adjustment mechanism 2 310 respectively to drive the upper sliding module 205 and the lower sliding module 304 to move to the predetermined position and lock them.

[0034] 2. Loading and Forming: The aluminum alloy sheet is placed on the lower pressing die 300, located between the two lower die heads 303. The pressing and forming drive part of the stamping drive module 400 is activated, driving the upper pressing die 200 to descend as a whole. During the descent, the inclined surfaces of the side push plates 204 fixed on both sides of the upper die base 202 first contact the inclined surfaces on the outer sides of the two lower die heads 303, generating a lateral force that forces the two lower die heads 303 to slide towards the center along the lower die base 302 and close tightly, forming a complete, closed lower die cavity. At the same time, the upper die head 203 presses into the closed lower die cavity, pressing the sheet into the required profile shape, initially forming the sleeve part and the sheet metal connection part. During this process, the L-shaped corner rod 500 is pressed down, causing the moving slide 301 and the entire lower pressing die 300 to move to the left a certain distance.

[0035] 3. Punching: After the forming process is completed, the punching drive unit 400 actuates, pushing the end plate 208 and all punches 206 further downward. Overcoming the force of the spring 207, the cutting edges of the punches 206 protrude from the bottom surface of the die head, punching the formed profile, including the central pin hole and the connecting holes at the four corners. The circular waste material generated by punching falls through the discharge hole 306 of the lower sliding module 304 into the lower cutting guide 305 and accumulates.

[0036] 4. Reset and Waste Removal: After punching, the punching drive part resets first, causing the punch 206 to retract under the action of the spring 207. Then, the pressing and molding drive part resets, causing the upper pressing module 200 to move upward as a whole. In the initial stage of upward movement, the side push plate 204 disengages from the lower die head 303, and the two lower dies 303 separate under the elastic restoring force of their internal elastic elements (which connect the lower die base 302 and the moving slide 301). At the same time, the upper die plate 201 moves upward, the pressure of the foot rod 600 is released, and the L-shaped corner rod 500 rotates under the action of the reset spring 501, pushing the moving slide 301 and the entire lower pressing module 300 to the right, i.e., towards the slag pusher 700, to reset and move. When the molded part moves upward with the demolding of the upper die head 203, and the lower pressing module 300 resets to a certain position, the end of the slag pusher 700 is inserted into the cutting guide 305. Compressed air is blown into the cutting conduit 305 through the slag pusher 700, blowing the accumulated punching waste material inside the conduit upwards and out of the conduit, thus completing the automatic waste removal.

[0037] 5. Automatic Unloading: After the upper pressure die 200 is fully reset, the formed aluminum alloy profile is stuck on the upper die head 203. At this time, the control cylinder 604 is activated, pushing the pusher 603 to move horizontally, pushing the profile off the die head. The falling profile falls into the unloading channel 601 below and slides down the ramp onto the collection box or conveyor belt, completing the automatic unloading.

[0038] 6. Cycle: Place a new sheet material and repeat the above process to process the next workpiece.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. An aluminum alloy profile for fixing rods onto corresponding plate frames, characterized in that: It includes an integrally formed rod sleeve (1) and a plate connecting part (2). The rod sleeve (1) has a pin hole (3) in the middle for bolting with a rod, and the plate connecting part (2) has connecting holes (4) at the four corners for connecting with the corresponding plate frame.

2. A stamping die for processing aluminum alloy profiles as described in claim 1, comprising a stamping table (100), an upper pressing die (200), a lower pressing die (300), and a stamping drive die (400), characterized in that: The upper pressing module (200) is connected to the stamping drive module (400) through the upper template (201); The pressing module (300) is slidably mounted on the stamping table (100) via a movable slide (301); The upper pressing module (200) includes an upper die base (202), an upper die head (203) fixed below the upper die base (202), and a side push plate (204), as well as two sets of upper sliding modules (205) slidably installed in the upper die head (203); both sets of upper sliding modules (205) are driven by an adjustment mechanism (210) to adjust the distance between them; a punch (206) is provided in the middle of the upper die head (203) and in each upper sliding module (205), and the punch (206) is connected to the corresponding upper sliding module (205) and the upper die head (203) by a spring (207); the upper end of the punch (206) is connected to the punching drive part of the stamping drive module (400) through an end plate (208); The pressing module (300) includes a lower die base (302), two lower die heads (303) that can slide relative to each other, and two sets of lower sliding modules (304); the two lower die heads (303) are slidably mounted on the movable slide table (301) through the lower die base (302), and the two sets of lower sliding modules (304) are driven by the second adjustment mechanism (310) to adjust the distance between them; Both the first adjustment mechanism (210) and the second adjustment mechanism (310) include a worm gear assembly (211) and a gear and rack assembly (212) for driving the corresponding sliding module to move in order to achieve distance adjustment.

3. The stamping die according to claim 2, characterized in that: The upper template (201) and the movable slide (301) are connected by an L-shaped corner bar (500). The L-shaped corner bar (500) is hinged on the stamping table (100), with one end connected to the movable slide (301) and the other end abutting against the upper template (201) through a foot bar (600).

4. The stamping die according to claim 3, characterized in that: A return spring (501) is provided on the L-shaped angle rod (500).

5. The stamping die according to claim 2, characterized in that: The worm gear of the worm gear assembly (211) of the first adjustment mechanism (210) is mounted on the upper mold base (202) via the first transmission shaft (213); the gear and rack assembly (212) includes a gear set that is connected to the first transmission shaft (213), a transmission gear (216) driven by the gear set, and two racks (217) that mesh with the transmission gear (216). The two racks (217) are respectively fixedly connected to two sets of upper sliding modules (205).

6. The stamping die according to claim 2, characterized in that: The worm gear of the worm gear assembly (211) of the second adjustment mechanism (310) is mounted on the lower mold base (302) via the second transmission shaft (311); the gear and rack assembly (212) includes a gear set that is connected to the second transmission shaft (311), a transmission gear (216) driven by the gear set, and two racks (217) that mesh with the transmission gear (216). The two racks (217) are respectively fixedly connected to two sets of lower sliding modules (304).

7. The stamping die according to claim 2, characterized in that: The lower die head (303) is provided with a cutting guide (305), which passes through the corresponding lower sliding module (304) and is slidably connected to it; the top of the lower sliding module (304) is provided with a discharge hole (306); the stamping table (100) is provided with a slag pusher (700) on the side away from the L-shaped corner bar (500), which is aligned with the corresponding cutting guide (305) and can be inserted into the cutting guide (305).

8. The stamping die according to claim 7, characterized in that: The pusher rod (700) is a hollow tube and is connected to an external gas source.

9. The stamping die according to claim 3, characterized in that: The foot bar (600) is provided with a discharge channel (601), which is fixed by the mounting bracket (602) and faces the reset upper pressure module (200); a pusher (603) is provided below the upper die head (203), which is slidably connected to the mounting bracket (602) and driven by the cylinder (604).

10. The stamping die according to claim 2, characterized in that: During the pressing and forming drive part of the stamping drive module (400) pushes the upper pressing module (200) down, the side push plate (204) abuts against the corresponding lower die head (303) to form a wedge-shaped side push, forcing the two lower die heads (303) to move closer to each other.

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