Flexible processing and punching die for water heater shell

Abstract

The utility model relates to a kind of for water heater shell flexible processing punch die, including rack;Die guide rail, the die guide rail is installed on the rack;Upper die assembly and lower die assembly are installed on the die guide rail of the described and slide;Servo power component, the servo power component is connected with the upper die assembly and lower die assembly transmission by connecting rod, for driving the upper die assembly and lower die assembly along the die guide rail moves;The space for placing board is formed between the upper die assembly and lower die assembly.The utility model has the advantages that: high flexible production is realized, and upper die assembly and lower die assembly are accurately moved on guide rail by servo power system drive, and the punch processing of hundreds of different specifications water heater shell can be completed on a set of device without replacing die, equipment utilization and production flexibility are greatly improved.

Description

Technical Field

[0001] This utility model relates to a punching die for flexible processing of water heater shells, belonging to the technical field of metal sheet stamping. Background Technology

[0002] Water heater casings are typically made of sheet metal, requiring different locations, sizes, and numbers of holes to be punched depending on the product model to meet functional requirements such as installation, ventilation, and wiring. Traditional stamping dies usually employ a fixed guide post and guide sleeve structure, with the punch and die positions fixed. A single die set can only be used for a few products with similar specifications, failing to meet the flexible production needs of multiple varieties and small batches. This results in high die development costs, low changeover efficiency, and poor production flexibility.

[0003] While existing technologies can achieve partial punching by adding cylinders, they still cannot arbitrarily adjust the hole positions, making it difficult to cope with the production realities of diverse water heater casing models and frequent hole position changes. Therefore, there is an urgent need for a mold structure that can achieve highly flexible, high-precision, and high-efficiency punching processing to improve production adaptability and economic benefits. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, this utility model provides a punching die for flexible processing of water heater shells. The technical solution of this utility model is as follows: A punching die for flexible processing of water heater housings, comprising: Rack (7); A mold guide rail (3) is mounted on the frame (7); an upper mold assembly (1) and a lower mold assembly (2) are slidably mounted on the mold guide rail (3). Servo power assembly (4), which is connected to the upper mold assembly (1) and the lower mold assembly (2) via a connecting rod (5) for driving the upper mold assembly (1) and the lower mold assembly (2) to move along the mold guide rail (3); The upper mold assembly (1) and the lower mold assembly (2) form a space for placing the sheet metal (6).

[0005] The servo power assembly (4) includes a servo motor (401), a slide block (402), a linear slider (403), a gear (404), and a mold connecting rod (405). The gear (404) is mounted on the output shaft of the servo motor (401). The slider (403) is slidably mounted on the mold guide rail (3). The slide block (402) is mounted on the slider (403). The slide block (402) meshes with the gear (404). The mold connecting rod (405) is arranged along the length direction of the frame (7). One end of the mold connecting rod (405) is hinged to the slide block (402), and the other end is hinged together with the upper mold assembly (1) and the lower mold assembly (2).

[0006] The upper die assembly (1) includes a hydraulic cylinder assembly and a punch assembly arranged sequentially from top to bottom; the hydraulic cylinder assembly is used to provide the power required for punching; the punch assembly is used to perform the punching action under the drive of the hydraulic cylinder assembly; the hydraulic cylinder assembly includes a hydraulic cylinder mounting plate (104), a hydraulic cylinder (101), a horizontal guide wheel (102), and a vertical guide wheel (103). Several hydraulic cylinders (101) are mounted on the hydraulic cylinder mounting plate (104), and a vertical guide wheel (103) that rolls with the mold guide rail (3) is mounted on the side of the hydraulic cylinder mounting plate (104). A horizontal guide wheel (102) is installed on the upper part of the cylinder mounting plate (104) and is arranged in the horizontal direction. The punch assembly includes a punch mounting plate (107), a punch (105) and a punch linear slider (106). Several punches (105) are mounted on the punch mounting plate (107) in a liftable manner. The piston rod of each cylinder (101) is connected to the corresponding punch (105) to drive the punch (105) to move downward. Punch linear sliders (106) that slide in cooperation with the mold guide rail (3) are respectively installed on both sides of the punch mounting plate (107).

[0007] The lower mold assembly (2) includes a die fixing plate (202), a die (201) and a die linear slider (203). The die fixing plate (202) is provided with a die linear slider (203) that slides in cooperation with the mold guide rail (3). The die fixing plate (202) is provided with a die (201) corresponding to the punch (105).

[0008] The mold guide rail (3) includes a horizontal guide rail (301), a vertical guide rail (302), an upper mold guide linear guide rail (303), and a lower mold guide linear guide rail (304). The horizontal guide rail (301) is used to guide the cylinder assembly of the upper mold assembly (1) to move horizontally; the vertical guide rail (302) is used to guide the cylinder assembly of the upper mold assembly (1) to move vertically; the upper mold guide linear guide rail (303) is used to guide the upper mold assembly (1) to move as a whole; and the lower mold guide linear guide rail (304) is used to guide the lower mold assembly (2) to move as a whole.

[0009] The punch linear slider (106) of the upper mold assembly (1) is slidably engaged with the upper mold guide linear guide (303); the die linear slider (203) of the lower mold assembly (2) is slidably engaged with the lower mold guide linear guide (304).

[0010] The servo power component (4) controls the positions of the upper mold component (1) and the lower mold component (2) on the mold guide rail (3) to achieve punching at any position on the plate (6).

[0011] The advantages of this utility model are: (1) It achieves highly flexible production. The upper and lower mold components are driven by the servo power system to move precisely on the guide rail. Without changing the mold, hundreds of different specifications of water heater shells can be punched on one set of equipment, which greatly improves the equipment utilization rate and production flexibility. (2) The use of a track-guided structure to replace the traditional guide post and guide sleeve allows the upper and lower dies to move independently along the guide rail, which not only expands the relative position adjustment range between the sheet metal and the die, but also improves the punching positioning accuracy and the stability of the die operation. (3) The overall structure is compact and reasonable, and the operation and control are simple. It can greatly reduce downtime and mold development costs caused by product changeover, and is particularly suitable for modern flexible manufacturing needs with multiple varieties and small batches. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0013] Figure 2 yes Figure 1 The main view.

[0014] Figure 3 yes Figure 2 AA sectional view.

[0015] Figure 4 yes Figure 1 A schematic diagram of the hydraulic cylinder assembly of the upper mold component.

[0016] Figure 5 yes Figure 1 Top view.

[0017] Figure 6 yes Figure 1 A schematic diagram of the structure of the punch assembly of the upper die assembly.

[0018] Figure 7 yes Figure 6 Top view.

[0019] Figure 8 yes Figure 1 A schematic diagram of the structure of the lower and middle mold components.

[0020] Figure 9 yes Figure 1 A schematic diagram of the servo power component.

[0021] Figure 10 yes Figure 9 The main view.

[0022] Figure 11 yes Figure 10 BB cross-sectional view. Detailed Implementation

[0023] The present invention will be further described below with reference to specific embodiments, and the advantages and features of the present invention will become clearer as a result of the description. However, these embodiments are merely exemplary and do not constitute any limitation on the scope of the present invention. Those skilled in the art should understand that modifications or substitutions can be made to the details and form of the technical solution of the present invention without departing from the spirit and scope of the present invention, but all such modifications and substitutions fall within the protection scope of the present invention.

[0024] See Figures 1 to 11 This utility model relates to a punching die for flexible processing of water heater shells, including a frame 7; a die guide rail 3, which is mounted on the frame 7; and an upper die assembly 1 and a lower die assembly 2 slidably mounted on the die guide rail 3. Servo power assembly 4 is connected to the upper mold assembly 1 and the lower mold assembly 2 via a connecting rod 5, and is used to drive the upper mold assembly 1 and the lower mold assembly 2 to move along the mold guide rail 3. The upper mold assembly 1 and the lower mold assembly 2 form a space for placing the sheet material 6.

[0025] By precisely driving the upper and lower die components along the die guide track using servo power components, the punching station can be adjusted quickly and accurately. It can adapt to the punching needs of any position on different specifications of sheet metal without changing the die, which greatly improves production flexibility and equipment utilization.

[0026] The guide method, which uses multiple sets of dedicated linear guides (such as horizontal and vertical guide rails and upper and lower die guide linear guides) in conjunction with linear sliders, replaces the traditional guide post and guide sleeve structure, significantly improving the rigidity and stability of the die during movement and stamping, and ensuring the accuracy of the punching position.

[0027] Both the upper and lower mold components integrate multiple execution units (cylinders, punches, dies, etc.) through mounting plates, and cooperate with the rails on the overall frame through linear sliders. The force transmission path is clear, the structure is compact and reasonable, and the overall rigidity and service life of the mold are effectively improved.

[0028] One set of molds can meet the processing needs of multiple products, saving a lot of costs associated with the development, manufacturing, storage and replacement of special molds, while also reducing the space occupied by equipment, resulting in significant overall economic benefits.

[0029] The servo power assembly 4 includes a servo motor 401, a slide block 402, a linear slider 403, a gear 404, and a mold connecting rod 405. The gear 404 is mounted on the output shaft of the servo motor 401. The slider 403 is slidably mounted on the mold guide rail 3. The slide block 402 is mounted on the slider 403 and meshes with the gear 404. The mold connecting rod 405 is arranged along the length direction of the frame 7. One end of the mold connecting rod 405 is hinged to the slide block 402, and the other end is hinged to the upper mold assembly 1 and the lower mold assembly 2.

[0030] The design of this servo power component structure achieves the following advantages: The transmission method using a servo motor to drive the gear and slide can achieve high-precision position control, ensuring the accuracy of movement and positioning of the upper and lower die components. At the same time, the gear and rack meshing transmission is smooth and has good rigidity, which helps to ensure the punching quality.

[0031] By directly mounting the linear slider on the mold guide rail and integrating the slide block, gear, and mold connecting rod together, the power transmission path is optimized, the structure is compact, energy loss in intermediate links is reduced, and transmission efficiency and response speed are improved.

[0032] The mold connecting rod is connected to the slide and the upper and lower mold components by a hinge. This floating connection design can effectively transmit servo power and compensate for minor deviations that may occur during installation and movement.

[0033] The upper die assembly 1 includes a hydraulic cylinder assembly and a punch assembly arranged sequentially from top to bottom; the hydraulic cylinder assembly provides the power required for punching; the punch assembly performs the punching action under the drive of the hydraulic cylinder assembly; the hydraulic cylinder assembly includes a hydraulic cylinder mounting plate 104, hydraulic cylinders 101, horizontal guide wheels 102, and vertical guide wheels 103. Several hydraulic cylinders 101 are mounted on the hydraulic cylinder mounting plate 104, and vertical guide wheels 103 that roll in cooperation with the die guide rail 3 are mounted on the side of the hydraulic cylinder mounting plate 104. A horizontal guide wheel 102 arranged in a horizontal direction is installed on the upper part of the cylinder mounting plate 104; the punch assembly includes a punch mounting plate 107, a punch 105 and a punch linear slider 106. Several punches 105 are mounted on the punch mounting plate 107 in a height-reducible manner. The piston rod of each cylinder 101 is connected to the corresponding punch 105 to drive the punch 105 to move downward; punch linear sliders 106 that slide in cooperation with the mold guide rail 3 are respectively installed on both sides of the punch mounting plate 107.

[0034] It adopts a layered structure of "cylinder assembly and punch assembly". The cylinder assembly provides the punching force, while the punch assembly is dedicated to performing the punching action. This separate design makes the force path clear, the structure rigid, and can effectively ensure the stability and accuracy during punching.

[0035] Multiple guiding mechanisms are implemented. The hydraulic cylinder assembly, through horizontal and vertical guide wheels, rolls in conjunction with the mold guide rail, ensuring smooth and precise movement of the entire upper mold. The punch assembly, through a linear slider, slides in conjunction with the guide rail, ensuring the verticality of the punch during high-speed up-and-down movement, effectively preventing uneven loading and wear, and greatly improving the positional accuracy of punching and the life of the mold.

[0036] Multiple hydraulic cylinders and punches are integrated and mounted on their respective mounting plates (hydraulic cylinder mounting plate, punch mounting plate), forming a modular unit. This design not only facilitates batch processing, assembly, and maintenance, but also allows for flexible adjustment and replacement of specific modules according to different product hole position requirements, enhancing the adaptability and economy of the entire mold set.

[0037] The lower mold assembly 2 includes a die fixing plate 202, a die 201, and a die linear slider 203. The die linear slider 203, which slides and engages with the mold guide rail 3, is provided at the lower part of the die fixing plate 202. The die 201, which corresponds to the punch 105, is provided on the die fixing plate 202.

[0038] By sliding the die linear slider located at the bottom of the die fixing plate with the die guide rail, the entire lower die assembly can move smoothly and flexibly along the rail under the drive of the servo power assembly and remain stable at the target position, providing a reliable foundation for flexible processing.

[0039] The modular design makes the installation, debugging, or replacement of the die very easy, reducing the later maintenance costs and time.

[0040] The mold guide rail 3 includes a horizontal guide rail 301, a vertical guide rail 302, an upper mold guide linear guide rail 303, and a lower mold guide linear guide rail 304. The horizontal guide rail 301 is used to guide the cylinder assembly of the upper mold assembly 1 to move horizontally; the vertical guide rail 302 is used to guide the cylinder assembly of the upper mold assembly 1 to move vertically; the upper mold guide linear guide rail 303 is used to guide the overall movement of the upper mold assembly 1; and the lower mold guide linear guide rail 304 is used to guide the overall movement of the lower mold assembly 2.

[0041] Horizontal and vertical guide rails are specifically designed to guide the fine-tuning movement of the upper mold cylinder assembly, ensuring precise positioning of the power source; while the upper and lower mold guide linear rails guide the overall large-range movement of the upper and lower molds respectively. This division of labor avoids motion interference and greatly improves the motion accuracy and stability of the overall system.

[0042] Multiple independent linear guides and track systems provide ample and reliable support and guidance for the upper and lower die assemblies. This design gives the die rigidity and anti-tipping ability during movement and stamping, effectively withstanding the huge impact and lateral forces brought by stamping, ensuring smooth processing and consistent hole positions.

[0043] By configuring independent guide rails for the upper and lower mold components, they can be independently driven by servo power and move flexibly on the rails.

[0044] The punch linear slider 106 of the upper mold assembly 1 is slidably engaged with the upper mold guide linear guide rail 303; the die linear slider 203 of the lower mold assembly 2 is slidably engaged with the lower mold guide linear guide rail 304.

[0045] The linear sliders of the punch and die slide in conjunction with high-precision upper and lower die guide rails, providing precise guidance for the independent movement of the upper and lower die assemblies. This high-precision guidance ensures that the upper die (punch) and lower die (die) maintain extremely high alignment during final die closing and stamping, thereby guaranteeing punching quality and avoiding problems such as die chipping and burrs.

[0046] The upper and lower mold components each have their own independent guiding systems, which allows them to be driven by servo power components and move independently on the track to any position set by the program.

[0047] It adopts a linear slider and linear guide rail combination, which has a large contact area and strong load-bearing capacity. It can effectively withstand the huge vertical impact force and lateral force generated during stamping. The rolling or sliding friction mode has low wear, long service life and low maintenance cost.

[0048] The servo power component 4 controls the positions of the upper mold component 1 and the lower mold component 2 on the mold guide rail 3 to achieve punching at any position on the plate 6.

[0049] The working principle of this utility model is as follows, and its working process mainly includes two stages: positioning and punching: Step 1: Servo drive positioning The servo power unit 4 is activated upon receiving a command from the control system. The servo motor 401 rotates, driving the gear 404 on its output shaft to rotate. The gear meshes with the slide block 402 mounted on the linear slider 403, thereby converting the rotational motion into precise linear motion of the slide block 402 along the mold guide rail 3. The slide block 402 pushes or pulls the upper mold assembly 1 and the lower mold assembly 2 via the hinged mold connecting rod 405. The upper mold assembly engages with the upper mold guide linear guide rail 303 via its punch linear slider 106, and the lower mold assembly engages with the lower mold guide linear guide rail 304 via its die linear slider 203. Both can move independently or synchronously under the drive of the servo power until they reach the punching target position set in the program.

[0050] Step 2: Upper die action and punching execution Once the upper and lower dies are precisely positioned, the punching action begins. Multiple cylinders 101 in the cylinder assembly of the upper die assembly 1 operate simultaneously, their piston rods extending downwards to push the connected punch 105 downwards, overcoming the guiding constraint of the punch linear slider 106. At this time, the sheet metal 6 placed in the space between the upper and lower dies is supported by the lower die 201, and the high-speed punch 105 and die 201 work together to complete the punching operation.

[0051] Step 3: Resetting and preparing for the next punching operation After punching is completed, the piston rod of the hydraulic cylinder 101 retracts, causing the punch 105 to return to its original position and detach from the sheet metal. Subsequently, the servo power unit 4 drives the upper and lower die assemblies to move to the next punching position according to the command, repeating the above cycle of "positioning, punching and resetting" until all holes on the entire sheet metal are processed.

[0052] Flexible positioning is achieved by controlling the mold movement through a servo system, and precise punching is achieved by driving the punch with a hydraulic cylinder. This enables efficient and high-precision flexible punching of different positions on sheet metal using a single mold.

[0053] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A punching die for flexible processing of water heater shells, characterized in that, include: Rack (7); A mold guide rail (3) is mounted on the frame (7); an upper mold assembly (1) and a lower mold assembly (2) are slidably mounted on the mold guide rail (3). Servo power assembly (4), which is connected to the upper mold assembly (1) and the lower mold assembly (2) via a connecting rod (5) for driving the upper mold assembly (1) and the lower mold assembly (2) to move along the mold guide rail (3); The upper mold assembly (1) and the lower mold assembly (2) form a space for placing the sheet metal (6).

2. The punching die for flexible processing of water heater shells according to claim 1, characterized in that... The servo power assembly (4) includes a servo motor (401), a slide block (402), a linear slider (403), a gear (404), and a mold connecting rod (405). The gear (404) is mounted on the output shaft of the servo motor (401). The slider (403) is slidably mounted on the mold guide rail (3). The slide block (402) is mounted on the slider (403). The slide block (402) meshes with the gear (404). The mold connecting rod (405) is arranged along the length direction of the frame (7). One end of the mold connecting rod (405) is hinged to the slide block (402), and the other end is hinged to the upper mold assembly (1) and the lower mold assembly (2).

3. The punching die for flexible processing of water heater shells according to claim 1 or 2, characterized in that, The upper die assembly (1) includes a hydraulic cylinder assembly and a punch assembly arranged sequentially from top to bottom; the hydraulic cylinder assembly is used to provide the power required for punching; the punch assembly is used to perform the punching action under the drive of the hydraulic cylinder assembly; The hydraulic cylinder assembly includes a hydraulic cylinder mounting plate (104), a hydraulic cylinder (101), a horizontal guide wheel (102), and a vertical guide wheel (103). Several hydraulic cylinders (101) are mounted on the hydraulic cylinder mounting plate (104). A vertical guide wheel (103) that rolls with the mold guide rail (3) is mounted on the side of the hydraulic cylinder mounting plate (104). A horizontal guide wheel (102) that is arranged in the horizontal direction is mounted on the upper part of the hydraulic cylinder mounting plate (104). The punch assembly includes a punch mounting plate (107), a punch (105), and a punch linear slider (106). Several punches (105) are mounted on the punch mounting plate (107) in a height-reducible manner. The piston rod of each cylinder (101) is connected to the corresponding punch (105) to drive the punch (105) to move downward. Punch linear sliders (106) that slide in cooperation with the mold guide rail (3) are respectively mounted on both sides of the punch mounting plate (107).

4. The punching die for flexible processing of water heater shells according to claim 3, characterized in that, The lower mold assembly (2) includes a die fixing plate (202), a die (201) and a die linear slider (203). The die fixing plate (202) is provided with a die linear slider (203) that slides in cooperation with the mold guide rail (3). The die fixing plate (202) is provided with a die (201) corresponding to the punch (105).

5. The punching die for flexible processing of water heater shells according to claim 4, characterized in that, The mold guide rail (3) includes a horizontal guide rail (301), a vertical guide rail (302), an upper mold guide linear guide rail (303), and a lower mold guide linear guide rail (304). The horizontal guide rail (301) is used to guide the cylinder assembly of the upper mold assembly (1) to move horizontally; the vertical guide rail (302) is used to guide the cylinder assembly of the upper mold assembly (1) to move vertically; the upper mold guide linear guide rail (303) is used to guide the upper mold assembly (1) to move as a whole; and the lower mold guide linear guide rail (304) is used to guide the lower mold assembly (2) to move as a whole.

6. The punching die for flexible processing of water heater shells according to claim 5, characterized in that, The punch linear slider (106) of the upper mold assembly (1) is slidably engaged with the upper mold guide linear guide (303); the die linear slider (203) of the lower mold assembly (2) is slidably engaged with the lower mold guide linear guide (304).

7. The punching die for flexible processing of water heater shells according to claim 1, characterized in that, The servo power component (4) controls the positions of the upper mold component (1) and the lower mold component (2) on the mold guide rail (3) to achieve punching at any position on the plate (6).

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