Air conditioner fin stamping positioning device

Abstract

The utility model provides a kind of air conditioner fin stamping positioning device, and positioning device is set on the workbench of punch press, including the drive mechanism being set on the workbench of punch press, two mounting plates are provided on drive mechanism, drive mechanism can drive two mounting plates to move towards each other, positioning clamping plate is provided on each mounting plate, and the workpiece to be punched is located between two positioning clamping plates, positioning clamping plate includes horizontal bearing part and horizontal compression part, wherein, the workpiece to be punched is placed in the upper portion of horizontal bearing part, and the lower portion of horizontal compression part is contacted with the upper portion of the workpiece to be punched, the utility model can be driven by drive assembly at least two mutually matched positioning clamping plates on horizontal bearing part cooperate horizontal compression part to realize mutual approaching movement, to support and compression fixed operation of various specifications of the workpiece to be punched, greatly improve the stability of stamping operation and the quality of stamping product, more convenient and efficient.

Description

Technical Field

[0001] This utility model relates to the field of stamping and positioning equipment technology, specifically to an air conditioner fin stamping and positioning device. Background Technology

[0002] With the improvement of people's living standards, air conditioners have become an essential household appliance. As an important component of air conditioners, air conditioner fins play a vital role in the heat exchange efficiency of air conditioners. Therefore, the production of air conditioner fins is particularly important.

[0003] Air conditioner fins are made by adding highly thermally conductive metal to the surface of heat exchangers, increasing the heat exchange surface area and improving heat exchange efficiency. Currently, air conditioner fins require stamping during production. Traditional positioning devices use fixed-size fixtures, with one set of fixtures corresponding to only one type of fin. When changing fin specifications for different air conditioner models, the old fixtures must be disassembled and new fixtures installed, a process that takes 15-30 minutes, severely impacting production line efficiency. Furthermore, multiple fixture specifications require separate storage, consuming space and increasing costs. Utility Model Content

[0004] In view of this, the present invention provides an air conditioner fin stamping positioning device, which can drive at least two mutually cooperating positioning plates to move closer to each other through a drive mechanism to achieve the support and clamping and fixing of workpieces of various specifications to be stamped, greatly improving production efficiency and reducing space occupation and production and storage costs.

[0005] To solve the above-mentioned technical problems, this utility model provides an air conditioner fin stamping positioning device. The positioning device is set on the worktable of the stamping machine and includes a drive mechanism set on the worktable of the stamping machine. The drive mechanism is equipped with two mounting plates and can drive the two mounting plates to move towards each other. Each mounting plate is equipped with a positioning clamping plate. The workpiece to be stamped is located between the two positioning clamping plates. The positioning clamping plate includes a horizontal bearing part and a horizontal pressing part. The workpiece to be stamped is placed on the upper part of the horizontal bearing part, and the lower part of the horizontal pressing part is in contact with the upper part of the workpiece to be stamped. This utility model can drive the horizontal bearing parts and horizontal pressing parts on at least two mutually cooperating positioning clamping plates to move closer to each other through the drive assembly to achieve the support and pressing and fixing of workpieces of various specifications to be stamped, which greatly improves the stability of the stamping operation and the quality of the stamped products, and is more convenient and efficient.

[0006] There are four positioning clamps, and they are arranged in pairs. Each mounting plate is equipped with a set of positioning clamps. The horizontal bearing part and the horizontal pressing part of each set of positioning clamps are oriented towards the geometric center of the workpiece to be punched. This utility model can achieve a firm and stable clamping and fixing operation of the four corners of the workpiece to be punched through the four positioning clamps, which greatly improves the stability of the punching operation.

[0007] The driving mechanism includes a guide rail mounted on the worktable, guide blocks slidably mounted at both ends of the guide rail, a bidirectional telescopic push rod between the two guide blocks, a fixed plate mounted on the upper part of the guide blocks, and a mounting plate mounted on the upper part of the fixed plate. This utility model can push the guide blocks and the fixed plate above them to move in opposite directions by extending and retracting the output rod of the bidirectional telescopic push rod, which is convenient for punching workpieces of different specifications.

[0008] The bidirectional telescopic push rod can be either an electric bidirectional push rod or a hydraulic bidirectional push rod.

[0009] A vertical plate is provided on the upper part of the fixed plate, and a driving component is provided on the vertical plate. The output shaft end of the driving component is located on the outside of the mounting plate.

[0010] The driving component is an electric actuator or a hydraulic actuator.

[0011] A telescopic protective cover is also provided on the guide rail located on the outside of the bidirectional telescopic push rod. The telescopic protective cover is a bellows cover. This utility model can protect the bidirectional telescopic push rod through the telescopic protective cover, preventing stamping debris from entering the fixed cylinder of the bidirectional telescopic push rod, thus making it safer.

[0012] The fixed plate is provided with slide rails at both ends of the driving component, and a slider is slidably mounted on the slide rail. The lower part of the mounting plate is positioned above the slider. This utility model can achieve the further pressing and fixing of the workpiece to be stamped by the further pressing and fixing operation of the mounting plate by the extension of the output rod of the driving component, under the guidance of the slider by the slide rail.

[0013] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects: 1. Solving the problem of poor adaptability and improving changeover efficiency: This utility model can quickly adjust the distance between two sets of positioning clamps through a bidirectional telescopic push rod to adapt to fins of different widths; the drive component adjusts the fit between the positioning clamps and the fins through a slide rail slider to adapt to fins of different thicknesses. The entire process does not require disassembling the clamps, only controlling the extension and retraction of the push rod, greatly shortening the changeover time and increasing efficiency by more than double. Moreover, it eliminates the need to store multiple sets of clamps, saving space and cost.

[0014] 2. Solving the problem of insecure clamping and reducing scrap rate: The four positioning clamps in this invention exert force from the four corners of the fins, with a horizontal bearing part for bottom support and a horizontal pressing part for top pressing, forming a multi-directional fixation that prevents fin warping and movement. Actual tests show that the hole position deviation during fin stamping is greatly reduced, the scrap rate is greatly reduced, and product quality is significantly improved.

[0015] 3. Solving the problem of easy drive wear and tear, reducing maintenance costs: The accordion-style telescopic protective cover in this utility model fully encloses the bidirectional telescopic push rod, effectively preventing metal debris from entering. Statistical data shows that the drive mechanism of this device only requires routine cleaning once every 12 months on average, and no parts need to be replaced within 24 months, reducing maintenance costs by more than 80% and extending the overall service life of the device.

[0016] 4. Solving the problem of insufficient precision and improving positioning accuracy: This utility model can achieve secondary clamping by driving the mounting plate along the slide rail slider through the driving component. The clamping force can be finely adjusted according to the actual flatness of the fins, eliminating the gap in the initial positioning. At the same time, the clearance between the slide rail and the slider is ≤0.02mm, ensuring the straightness of the mounting plate movement, further improving the positioning accuracy and meeting the processing requirements of high-precision fins, such as the fins of variable frequency air conditioner heat exchangers. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the air conditioner fin stamping and positioning device of this utility model; Figure 2 This utility model Figure 1 Enlarged view of point A in the middle; Figure 3 This is a front view of the air conditioner fin stamping and positioning device of this utility model; Figure 4 This is a top view of the air conditioner fin stamping and positioning device of this utility model.

[0018] Explanation of reference numerals in the attached drawings: 100, drive mechanism; 101, guide rail; 102, guide block; 103, bidirectional telescopic push rod; 104, fixing plate; 200, mounting plate; 300, positioning clamping plate; 301, horizontal bearing part; 302, horizontal pressing part; 400, vertical plate; 500, drive component; 600, protective cover; 700, slide rail; 800, slider. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-4The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0020] like Figure 1-4 As shown: This embodiment provides an air conditioner fin stamping positioning device. The positioning device is set on the worktable of the stamping machine and includes a drive mechanism 100 set on the worktable of the stamping machine. The drive mechanism 100 is provided with two mounting plates 200. The drive mechanism 100 can drive the two mounting plates 200 to move towards each other. Each mounting plate 200 is provided with a positioning clamping plate 300. The positioning clamping plate 300 is made of 65Mn steel. The steel forging and finishing support allows the workpiece to be stamped to be positioned between two positioning clamps 300. Each positioning clamp 300 includes a horizontal bearing portion 301 and a horizontal clamping portion 302. The workpiece to be stamped is placed on the upper part of the horizontal bearing portion 301, and the lower part of the horizontal clamping portion 302 contacts the upper part of the workpiece. The horizontal bearing portion 301 and the horizontal clamping portion 302 are an integrated structure, and their contact surfaces are polished to prevent scratching the surface of the air conditioning fins and improve wear resistance. This invention can drive at least two cooperating positioning clamps 300 to move closer together, thereby supporting and clamping various specifications of workpieces to be stamped. This greatly improves the stability of the stamping operation and the quality of the stamped products, making it more convenient and efficient.

[0021] According to one embodiment of the present invention, such as Figure 1-4 As shown, there are four positioning clamps 300, which are distributed along the four corners of the fins and are arranged in pairs. Each mounting plate 200 is provided with a set of positioning clamps 300. The horizontal bearing part 301 and the horizontal pressing part 302 of each set of positioning clamps 300 are oriented towards the geometric center of the workpiece to be punched. This utility model can achieve a firm and stable clamping and fixing operation of the four corners of the workpiece to be punched through the four positioning clamps 300, which greatly improves the stability of the punching operation.

[0022] According to another embodiment of the present invention, such as Figure 1 and Figure 2The drive mechanism 100 shown includes a guide rail 101 mounted on a workbench, with guide blocks 102 slidably mounted at both ends of the guide rail 101. The guide rail 101 is a THK SR15V linear guide rail 101. The slide rail 700 has a T-shaped structure. The T-shaped groove on the inner side of the slider 800 has a gap of 0.01mm with the slide rail 700 to ensure the straightness of the movement of the mounting plate 200. The surface of the slider 800 is plated with hard chrome. A bidirectional telescopic push rod 103 is provided between the two guide blocks 102. A fixing plate 104 is provided on the upper part of the guide block 102. The mounting plate 200 is located on the upper part of the fixing plate 104. This utility model can push the guide block 102 and the fixing plate 104 above it to move in opposite directions by extending and retracting the output rod of the bidirectional telescopic push rod 103, which is convenient for punching workpieces of different specifications.

[0023] The bidirectional telescopic push rod 103 can be an electric bidirectional push rod or a hydraulic bidirectional push rod. If the bidirectional telescopic push rod 103 is electric, the KL-TGD series electric bidirectional push rod of Wuxi Kailai Pneumatic Components Co., Ltd., model KL-TGD-500, is selected; if it is hydraulic, the DYTZ series hydraulic bidirectional push rod of Dezhou Taili Machinery Co., Ltd., model DYTZ-1000, is selected.

[0024] According to another embodiment of the present invention, such as Figure 1 and Figure 3 A vertical plate 400 is provided on the upper part of the fixed plate 104 shown, and a driving component 500 is provided on the vertical plate 400. The output shaft end of the driving component 500 is located on the outside of the mounting plate 200.

[0025] The drive component 500 is either an electric push rod or a hydraulic push rod. If the drive component 500 is electric, the KL-TGD series electric push rod of Wuxi Kailai Pneumatic Components Co., Ltd., model KL-TGD-200, is selected; if it is hydraulic, the DYTZ series hydraulic push rod of Dezhou Taili Machinery Co., Ltd., model DYTZ-300, is selected to ensure that the positioning clamp 300 fits tightly with the fins.

[0026] According to another embodiment of the present invention, such as Figure 1 and Figure 4 A telescopic protective cover 600 is also provided on the guide rail 101 located outside the bidirectional telescopic push rod 103. The telescopic protective cover 600 is a bellows cover made of polyurethane coated canvas, and its two ends are fixed to the guide block 102 and the fixed end on the left side of the worktable respectively by bolts, completely covering the bidirectional telescopic push rod 103. This utility model can protect the bidirectional telescopic push rod 103 through the telescopic protective cover 600, preventing stamping debris from entering the fixed cylinder of the bidirectional telescopic push rod 103, thus making it safer.

[0027] A slide rail 700 is provided on the fixed plate 104 at both ends of the driving component 500. A slider 800 is slidably mounted on the slide rail 700. The lower part of the mounting plate 200 is located on the upper part of the slider 800. Both the slide rail 700 and the slider 800 are made of 45 steel and heat treated. The inner side of the slider 800 and the mating surface with the slide rail 700 are plated with hard chrome to reduce sliding friction and improve wear resistance. The guide rail 101, guide block 102, fixed plate 104 and vertical plate 400 are all made of Q235 steel. The fixed plate 104 and guide block 102, and the vertical plate 400 and fixed plate 104 are fixedly connected by arc welding. The weld is ground to ensure structural strength. This utility model can use the guide effect of the slide rail 700 on the slider 800 to push the mounting plate 200 along the slide rail 700 under the action of the output rod of the driving component 500, so as to achieve further pressing and fixing of the workpiece to be stamped.

[0028] Working principle and usage of this utility model: First, it needs to be clarified that the positioning device involved in this utility model is mainly used for pressing and fixing stamped workpieces. This utility model takes the positioning in the stamping process of air conditioner fins as an example to explain its working principle and usage method in detail. The working principle is as follows: This invention achieves precise positioning through the coordinated operation of "multi-directional drive - double clamping - full-process protection," and the specific principle is as follows: The multi-specification adaptability driving principle uses a bidirectional telescopic push rod 103 as the primary drive, which drives the guide block 102 to slide along the guide rail 101 through telescopic movement, adjusting the distance between the two mounting plates 200 so that the two sets of positioning clamps 300 are initially aligned with both sides of the fin; the driving component 500 acts as the secondary drive, which pushes the mounting plate 200 to slide along the slide rail 700 and the slider 800 to adjust the contact distance between the positioning clamps 300 and the fin, adapting to fins of different thicknesses and flatness, and achieving multi-specification compatibility without changing the clamps.

[0029] The multi-directional clamping and fixing principle positions the fins by using a horizontal bearing portion 301 on the positioning clamp 300 to support the bottom of the fins, providing vertical support and preventing the fins from sagging due to their own weight. A horizontal pressing portion 302 presses down on the top of the fins, forming an "upper and lower constraint" in conjunction with the bearing portion. Simultaneously, four clamps exert force from the four corners of the fins towards the geometric center, forming a "horizontal constraint." Under this dual constraint, the fins cannot warp or move during the stamping process, ensuring the accuracy of the hole positions.

[0030] The telescopic protective cover 600, such as a bellows cover, extends and retracts synchronously with the movement of the guide block 102. Its fixed end is connected to the worktable, and its movable end is connected to the guide block 102, always completely enclosing the bidirectional telescopic push rod 103. Metal shavings generated during stamping are blocked by the protective cover 600 and cannot enter the gap between the piston rod and cylinder of the push rod, thus avoiding wear of the seals and movement jamming caused by the shavings.

[0031] The secondary clamping accuracy control principle states that after initial positioning, if slight warping of the fins causes local gaps, the drive component 500 can push the mounting plate 200 to move slowly along the slide rail 700 and slider 800, causing the positioning clamp 300 to gradually conform to the fin surface until the gaps are completely eliminated. The high-precision fit between the slide rail 700 and slider 800 ensures the straightness of the mounting plate 200's movement, avoiding additional offsets during secondary adjustment and further improving positioning accuracy.

[0032] The usage method is as follows: The specific steps for using this device are as follows; it is simple to operate and can be adapted to automated control: Equipment preparation and parameter setting: Check the status of each component of the equipment: confirm that the bidirectional telescopic push rod 103 and drive component 500 are not stuck, the telescopic protective cover 600 is not damaged, and the surface of the slide rail 700 and slider 800 is free of debris; according to the specifications of the air conditioner fins to be stamped, input parameters into the PLC control system of the stamping machine, such as the clamping plate spacing and clamping force, and the system will automatically match the stroke of the bidirectional telescopic push rod 103 and drive component 500.

[0033] Workpiece Placement and Preliminary Positioning: The air conditioner fins to be stamped can be placed individually or stacked, and stably placed in the center of the workbench, ensuring that the edge of the fin is aligned with the horizontal bearing part 301 of the positioning clamping plate 300; Activate the bidirectional telescopic push rod 103, whose extension and retraction drive the guide block 102 to slide along the guide rail 101, thereby driving the two mounting plates 200 to move towards each other until the horizontal bearing part 301 of the two sets of positioning clamping plates 300 supports the bottom of the fin and the horizontal pressing part 302 is close to the top of the fin, then stop the push rod, completing the preliminary positioning.

[0034] The drive unit 500 on the starting vertical plate 400 is pressed and fixed in the secondary clamping. Its output shaft slowly extends and pushes the mounting plate 200 to slide along the slide rail 700 and slider 800 towards the fins. The positioning clamping plate 300 gradually presses the fins. The clamping force is monitored by the PLC system connected to the pressure sensor. When the set value is reached, the drive unit 500 automatically stops, completing the secondary clamping. At this time, the fins are completely fixed.

[0035] The stamping operation and reset process involves starting the stamping machine to stamp the firmly positioned fins. After stamping, the output shaft of the drive unit 500 is retracted, moving the mounting plate 200 away from the fins and releasing the secondary clamping. Then, the bidirectional telescopic push rod 103 is extended in the opposite direction, moving the guide block 102 and the mounting plate 200 away from the fins and releasing the initial positioning. Finally, the stamped fins are removed manually or by a robotic arm, the device is reset, and the device is ready for the next batch of processing.

[0036] Daily maintenance: After each day's processing, turn off the power and hydraulic power of the device, and use compressed air to clean the debris from the worktable and positioning clamp 300. Check the integrity of the telescopic protective cover 600 weekly, and replace it promptly if any damage is found. Apply lithium-based grease to the surface of the slide rail 700 and slider 800 monthly to ensure smooth sliding. Check the seals of the bidirectional telescopic push rod 103 and drive component 500 quarterly, and replace them promptly if any leakage is found.

[0037] This invention enables the horizontal bearing portion 301 and the horizontal pressing portion 302 on at least two cooperating positioning clamps 300 to move closer to each other via the driving mechanism 100, thereby achieving the support and pressing and fixing of workpieces of various specifications to be stamped, which greatly improves production efficiency and reduces space occupation and production and storage costs.

[0038] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. An air conditioner fin stamping positioning device, wherein the positioning device is mounted on the worktable of a stamping machine, characterized in that: The device includes a drive mechanism (100) mounted on the worktable of the stamping machine. The drive mechanism (100) has two mounting plates (200) and can drive the two mounting plates (200) to move toward each other. Each mounting plate (200) is provided with a positioning clamping plate (300). The workpiece to be stamped is located between the two positioning clamping plates (300). The positioning clamping plate (300) includes a horizontal bearing part (301) and a horizontal pressing part (302). The workpiece to be stamped is placed on the upper part of the horizontal bearing part (301), and the lower part of the horizontal pressing part (302) is in contact with the upper part of the workpiece to be stamped.

2. The air conditioner fin stamping and positioning device as described in claim 1, characterized in that: There are four positioning clamps (300), and each pair is a group. Each mounting plate (200) is provided with a group of positioning clamps (300). The horizontal bearing part (301) and the horizontal pressing part (302) of each group of positioning clamps (300) are oriented toward the geometric center of the workpiece to be stamped.

3. The air conditioner fin stamping and positioning device as described in claim 2, characterized in that: The drive mechanism (100) includes a guide rail (101) mounted on a workbench. Guide blocks (102) are slidably mounted at both ends of the guide rail (101). A bidirectional telescopic push rod (103) is mounted between the two guide blocks (102). A fixing plate (104) is mounted on the upper part of the guide block (102). The mounting plate (200) is mounted on the upper part of the fixing plate (104).

4. The air conditioner fin stamping and positioning device as described in claim 3, characterized in that: The bidirectional telescopic push rod (103) is an electric bidirectional push rod or a hydraulic bidirectional push rod.

5. The air conditioner fin stamping and positioning device as described in claim 3, characterized in that: The upper part of the fixing plate (104) is provided with a vertical plate (400), and a driving member (500) is provided on the vertical plate (400). The output shaft end of the driving member (500) is located on the outside of the mounting plate (200).

6. The air conditioner fin stamping and positioning device as described in claim 5, characterized in that: The drive component (500) is an electric push rod or a hydraulic push rod.

7. The air conditioner fin stamping and positioning device as described in claim 4, characterized in that: A telescopic protective cover (600) is also provided on the guide rail (101) located outside the bidirectional telescopic push rod (103).

8. The air conditioner fin stamping and positioning device as described in claim 5, characterized in that: The fixed plate (104) is provided with slide rails (700) at both ends of the drive member (500), and a slider (800) is slidably disposed on the slide rail (700). The lower part of the mounting plate (200) is disposed on the upper part of the slider (800).

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