Air conditioner fin stamping device with quick-change die

Abstract

The utility model provides a kind of air conditioner fin stamping device of quick replacement mould, including bearing box, the upper end of bearing box is placed with stamping die, the upper end of bearing box is provided with mounting plate, the inside of mounting plate is slidably provided with punch, the inside of bearing box is provided with multiple guide posts, one clamping plate is slidably provided between the outer arc surface of multiple guide posts adjacent in front and back respectively, multiple clamping slots are respectively opened in the left and right sides of stamping die, multiple clamping plates are respectively inserted with adjacent clamping slot, the inside of bearing box is provided with adjusting mechanism that adjusts the movement of two sides clamping plate. Through the air conditioner fin stamping device of quick replacement mould of the utility model, the clamping slot on stamping die can be cooperated by using the clamping plate of two sides moving towards each other, the mould of air conditioner fin stamping device can be quickly disassembled, the replaced stamping die is preliminarily positioned and quickly replaced, the quick disassembly, accurate positioning, safety locking of mould can be realized, and the efficiency of die changing is significantly improved.

Description

Technical Field

[0001] This utility model belongs to the field of air conditioner fin production technology, and specifically relates to an air conditioner fin stamping device with quick mold replacement. Background Technology

[0002] Air conditioner fin stamping equipment is a highly specialized precision pressure processing device, widely used in the heat exchanger manufacturing field of air conditioning, refrigeration, heat pump and other industries. It is mainly used to process thin metal sheet materials such as aluminum foil or copper foil with a thickness of only 0.07 to 0.15 mm into air conditioner heat exchanger fins with specific geometric structures through stamping process. These fins are the core components of the condenser and evaporator in the outdoor and indoor units of air conditioners, and their performance directly affects the heat exchange efficiency, wind resistance characteristics, energy consumption level and noise performance of the whole machine.

[0003] Existing air conditioner fin stamping equipment places the metal sheet to be stamped between an upper and lower die, then drives the upper die to contact the lower die to punch holes in the metal sheet and form air conditioner fins. However, the stamping die used for stamping is fixed to the stamping worktable by multiple bolts. When it is necessary to disassemble and replace the die with a different size to stamp the air conditioner fins, it is necessary for personnel to use tools to loosen and tighten multiple high-strength bolts (often more than 10) one by one. The whole process is very time-consuming. In addition, the stamping die is heavy, and the operator needs to use a torque wrench, which is easy to get tired. Moreover, the bolts often rust or jam due to vibration, making disassembly difficult. Each time it is reinstalled, it is necessary to manually align it, which makes it difficult to ensure that the die is aligned with the stamping centerline, affecting the stamping quality of the air conditioner fins. Utility Model Content

[0004] In view of this, this utility model addresses the shortcomings of the prior art by providing an air conditioner fin stamping device with a quick mold change capability. It utilizes two opposing moving clamping plates in conjunction with the slots on the stamping die to quickly disassemble the mold of the air conditioner fin stamping device. After the mold is initially positioned and quickly replaced, it can achieve quick mold disassembly, precise positioning, and safe locking, significantly improving mold change efficiency.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an air conditioner fin stamping device with quick mold replacement, including a carrier box, a stamping mold placed on the upper end of the carrier box, an mounting plate provided on the upper end of the carrier box, a punch block slidably arranged inside the mounting plate, multiple guide pillars provided inside the carrier box, a locking plate slidably arranged between the outer arc surfaces of multiple adjacent guide pillars, multiple locking slots opened on the left and right sides of the stamping mold, multiple locking plates respectively inserted into adjacent locking slots, an adjustment mechanism for adjusting the movement of the locking plates on both sides provided inside the carrier box, and a hydraulic push rod provided on the upper end of the carrier box, the telescopic end of the hydraulic push rod being connected to the upper end of the punch block.

[0006] The adjustment mechanism includes a rotating column rotatably mounted inside the bearing box. A rotating plate is fixedly mounted on the outer arc surface of the rotating column. Rotating connecting rods are rotatably mounted on both sides of the lower end of the rotating plate. A fixed seat is provided on the inner side of each plate. The ends of the two rotating connecting rods away from the fixed seats are rotatably connected to the interior of the adjacent fixed rotating seats. A self-locking drive unit for locking the rotating column is provided inside the bearing box. The self-locking drive unit includes a worm gear rotatably mounted inside the bearing box. A worm wheel is fixedly sleeved in the middle of the outer arc surface of the rotating column. The worm wheel is meshed with the worm gear. An auxiliary rotating component, which is a handwheel, is provided on the front side of the worm gear.

[0007] As a further improvement of this utility model, the lower end of the carrier box is provided with multiple support feet, and the carrier box and the support feet are fixed by welding. The lower ends of the multiple support feet are all provided with anti-slip pads.

[0008] As a further improvement of this utility model, the upper end of the carrier box is provided with multiple positioning protrusions, the two positioning protrusions are positioned in the left and right corresponding positions, and the lower side of the stamping die is provided with multiple positioning slots that are adapted to the positioning protrusions.

[0009] As a further improvement of this utility model, a collection box is slidably arranged inside the carrier box, a handle is provided on the front side of the collection box, and a material discharge port is opened at the upper end of the carrier box.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] Firstly, by placing a metal sheet into a stamping die, the punch, guided by a mounting plate, precisely presses down, pushing the upper and lower dies to close, achieving efficient stamping of the metal sheet to form air conditioning fins with structures such as flanged holes and bridge plates. After stamping, the hydraulic push rod retracts, moving the punch upwards. Simultaneously, the upper die quickly springs back to its original position under the action of a fatigue-resistant return spring, ensuring reliable die opening, avoiding jamming, and preparing for the next stamping. This structure not only achieves stable, precise, and controllable stamping action, improving forming accuracy and consistency, but also shortens the return time through spring-assisted reset, increasing stamping cycle time and production efficiency. It also reduces reliance on reverse control of the hydraulic system, lightening system load, extending equipment life, ensuring safe and reliable operation, and facilitating automated continuous production.

[0012] Secondly, by rotating the handwheel counterclockwise, the worm gear rotates, which in turn rotates the rotating column on the worm wheel, causing the rotating plate to rotate. This causes the rotating connecting rods on both sides to rotate and expand, causing the clamping plates on both rotating seats to move away from each other under the constraint of the guide column, thus disengaging them from the clamping slots on both sides of the stamping die. Then, the operator moves the stamping die upwards, causing its positioning slot to disengage from the positioning protrusion, thus disassembling it. The operator then aligns the positioning slot at the lower end of the replacement stamping die with the positioning protrusion for initial positioning. At this point, the clamping slots on both sides of the replacement stamping die correspond to the positions of the clamping blocks on both sides. Then, rotating the handwheel clockwise causes the clamping plates on both sides to engage with the sliding grooves, thereby achieving rapid installation of the stamping die. By using the clamping plates that move in opposite directions on both sides in conjunction with the clamping slots on the stamping die, the mold of the air conditioner fin stamping device can be quickly disassembled, and the replacement stamping die can be initially positioned and quickly replaced. This achieves rapid mold disassembly, precise positioning, and safe locking, significantly improving mold changing efficiency.

[0013] Thirdly, due to the self-locking characteristic between the worm gear and the worm, when the drive mechanism drives the locking block to insert into the slots on the left and right sides of the stamping die through the worm gear transmission, it can automatically lock in the current position. Even if it is subjected to strong vibration, impact or reverse force during the stamping process, it will not loosen or retract, thereby ensuring that the locking block can stably and reliably fix the die and effectively prevent the die from displacement, loosening or misalignment during high-speed stamping.

[0014] Fourth, the waste generated from stamping metal holes can automatically fall into the collection box through the discharge port, avoiding the accumulation of waste on the mold or workbench, which affects the stamping accuracy and equipment operation. Personnel can pull the collection box out of the carrier box at any time by the handle to clean up the waste in time, keep the working environment clean, prevent waste from slipping and causing safety hazards or scratching the material surface, reduce downtime for cleaning, improve production continuity and ease of operation, and effectively ensure the stability, safety and efficiency of the stamping process. Attached Figure Description

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a bottom sectional view of the bearing box of this utility model;

[0018] Figure 3 This is an enlarged structural diagram of point A in this utility model;

[0019] Figure 4 This is a front sectional view of the present invention.

[0020] In the diagram: 101, bearing box; 102, support foot; 103, collection box; 201, stamping die; 202, mounting plate; 203, hydraulic push rod; 204, punch block; 205, positioning protrusion; 301, handwheel; 302, guide column; 303, clamping plate; 304, rotating column; 305, rotating connecting rod; 306, fixed seat; 307, worm gear; 308, rotating plate; 309, worm wheel. Detailed Implementation

[0021] To better understand this utility model, the following embodiments further illustrate its content, but the scope of protection of this utility model is not limited to the embodiments described below. Numerous specific details are set forth in the following description to provide a more thorough understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without one or more of these details.

[0022] like Figure 1 , 2 As shown in Figure 4, an air conditioner fin stamping device with quick mold replacement includes a carrier box 101. A stamping mold 201 is placed on the upper end of the carrier box 101. An mounting plate 202 is provided on the upper end of the carrier box 101. A punch block 204 is slidably arranged inside the mounting plate 202. Multiple guide posts 302 are provided inside the carrier box 101. A retaining plate 303 is slidably arranged between the outer arc surfaces of multiple adjacent guide posts 302. Multiple slots are opened on the left and right sides of the stamping mold 201. The multiple retaining plates 303 are respectively inserted into the adjacent slots. The box 101 is equipped with an adjustment mechanism for adjusting the movement of the side plates 303. The upper end of the bearing box 101 is equipped with a hydraulic push rod 203, the telescopic end of which is connected to the upper end of the punch block 204. The lower end of the bearing box 101 is equipped with multiple support feet 102, and the lower end of each support foot 102 is equipped with an anti-slip pad. The multiple support feet 102 and the anti-slip pads at the lower end of the bearing box 101 can effectively increase the friction between the stamping device and the ground, prevent slippage during stamping operation, distribute the load, protect the ground, and improve overall stability.

[0023] First, connect the inlet and outlet oil pipes of the hydraulic push rod 203 to the external hydraulic control cabinet. Then, place the metal plate to be stamped inside the stamping die 201. Next, control the hydraulic control cabinet to make the extension end of the hydraulic push rod 203 drive the punch block 204 to contact the upper end of the stamping die 201 under the restriction of the mounting plate 202. Then, the upper die contacts the upper end of the metal plate and cooperates with the lower die to stamp the metal plate to form air conditioner fins. Then, control the hydraulic control cabinet to make the extension end of the hydraulic push rod 203 drive the punch block 204 to move upward. Then, the upper die of the stamping die 201 is returned to its original position by the fatigue-resistant return spring. Then, the personnel can take out the stamped air conditioner fins.

[0024] like Figure 2 , 3 As shown in Figure 4, the adjustment mechanism includes a rotating column 304 rotatably disposed inside the bearing box 101. A rotating plate 308 is fixedly disposed on the outer arc surface of the rotating column 304. Rotating connecting rods 305 are rotatably disposed on both sides of the lower end of the rotating plate 308. A fixed seat 306 is disposed on the inner side of each clamping plate 303. The ends of the two rotating connecting rods 305 away from the fixed seat 306 are respectively rotatably connected to the interior of the adjacent fixed rotating seat. The bearing box 101 is provided with a mechanism for adjusting the rotating column 304. The locking self-locking drive unit includes a worm gear 307 rotatably disposed inside the bearing box 101. A worm wheel 309 is fixedly sleeved in the middle of the outer arc surface of the rotating column 304. The worm wheel 309 is meshed with the worm gear 307. An auxiliary rotating component is provided on the front side of the worm gear 307. The auxiliary rotating component is a handwheel 301. Multiple positioning protrusions 205 are provided on the upper end of the bearing box 101. Multiple positioning slots that are adapted to the positioning protrusions 205 are opened on the lower side of the stamping die 201.

[0025] When the stamping die 201 needs to be replaced, the handwheel 301 is rotated counterclockwise to drive the worm gear 307 to drive the rotating column 304 on the worm wheel 309 to rotate. This causes the rotating plate 308 to expand in conjunction with the rotating connecting rods on both sides, pushing the retaining plates 303 on the rotating seat away from each other under the constraint of the guide column 302, thereby disengaging them from the retaining slots on both sides of the original stamping die 201. Then, the stamping die 201 is lifted up so that its positioning slots disengage from the positioning protrusions 205 to complete the disassembly. When replacing with a new die, its lower positioning slots are aligned with the positioning protrusions 205 fixed on the carrier box 101 and placed vertically to achieve rapid initial positioning. At this time, the new stamping die 201 is positioned with its sides... The slots are precisely aligned with the positions of the two clamping plates 303. Then, the handwheel 301 is rotated clockwise, and the two clamping plates 303 move synchronously towards the center in the slide groove through the same transmission mechanism and are firmly inserted into the clamping slots of the stamping die 201, thus completing the locking. Furthermore, due to the self-locking characteristics of the worm gear 309 and the worm 307, even if subjected to strong vibration and impact during the stamping process, the clamping plates 303 will not loosen or move back, ensuring that the stamping die 201 is always stably clamped. This effectively prevents displacement, loosening, or misalignment during operation, ensuring stamping accuracy, product consistency, and the safety and stability of equipment operation, and significantly improving production efficiency and automation level.

[0026] According to another embodiment of the present invention, such as Figure 2 , 4 As shown, a collection box 103 is slidably disposed inside the carrier box 101. A handle is provided on the front side of the collection box 103. A material discharge port is provided at the upper end of the carrier box 101. The waste generated by stamping the metal hole can fall into the collection box 103 through the material discharge port. Then, the personnel can take the collection box 103 out of the carrier box 101 through the handle and process the waste collected inside. Due to the weight of the collection box 103 and the inner wall of the carrier box 101 and the effect of frictional damping, the collection box 103 can be prevented from running out of the carrier box 101 during stamping.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. An air conditioner fin stamping device with quick mold change capability, comprising a carrier box (101), wherein a stamping mold (201) is placed on the upper end of the carrier box (101), characterized in that: The upper end of the carrier box (101) is provided with a mounting plate (202), and a punch block (204) is slidably arranged inside the mounting plate (202). Multiple guide posts (302) are provided inside the carrier box (101). A card plate (303) is slidably arranged between the outer arc surfaces of multiple adjacent guide posts (302). Multiple slots are opened on the left and right sides of the stamping die (201). Multiple card plates (303) are inserted into the adjacent slots respectively. An adjustment mechanism for adjusting the movement of the card plates (303) on both sides is provided inside the carrier box (101).

2. The air conditioner fin stamping device with quick mold change capability as described in claim 1, characterized in that: The upper end of the bearing box (101) is provided with a hydraulic push rod (203), and the telescopic end of the hydraulic push rod (203) is connected to the upper end of the punch block (204).

3. The air conditioner fin stamping device with quick mold change capability as described in claim 1, characterized in that: The adjustment mechanism includes a rotating column (304) rotatably disposed inside the bearing box (101), a rotating plate (308) fixedly disposed on the outer arc surface of the rotating column (304), rotating connecting rods (305) rotatably disposed on both sides of the lower end of the rotating plate (308), a fixed seat (306) is disposed on the inner side of each card plate (303), and the ends of the two rotating connecting rods (305) away from the fixed seat (306) are respectively rotatably connected to the interior of the adjacent fixed rotating seat. The bearing box (101) is provided with a self-locking drive unit for locking the rotating column (304).

4. The air conditioner fin stamping device with quick mold change capability as described in claim 3, characterized in that: The self-locking drive unit includes a worm (307) rotatably disposed inside the bearing box (101), a worm wheel (309) fixedly sleeved on the middle of the outer arc surface of the rotating column (304), the worm wheel (309) meshing with the worm (307), and an auxiliary rotating component provided on the front side of the worm (307).

5. The air conditioner fin stamping device with quick mold change capability as described in claim 4, characterized in that: The auxiliary rotating component is a handwheel (301).

6. The air conditioner fin stamping device with quick mold change capability as described in claim 1, characterized in that: The upper end of the bearing box (101) is provided with a plurality of positioning protrusions (205), and the lower side of the stamping die (201) is provided with a plurality of positioning slots that are adapted to the positioning protrusions (205).

7. The air conditioner fin stamping device with quick mold change capability as described in claim 1, characterized in that: The carrying box (101) has a collection box (103) that is slidably disposed inside. The collection box (103) has a handle on the front side, and the carrying box (101) has a discharge port at the top.

8. The air conditioner fin stamping device with quick mold change capability as described in claim 1, characterized in that: The lower end of the carrier box (101) is provided with multiple support feet (102), and the lower end of each support foot (102) is provided with an anti-slip pad.

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