Bending and stretching integrated die for water pan of large unit
By designing the bending and stretching integrated mold for large unit water connection trays, the high difficulty and high cost problems caused by step-by-step processes in the existing technology are solved, and efficient and low-cost water connection tray processing is achieved.
Patent Information
- Application Number
- CN202422526065.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-18
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-10-18
AI Technical Summary
In the prior art, when making large unit water connection trays, stretching and bending processes need to be completed in steps, resulting in high production difficulty, low efficiency and high cost.
An integrated mold is designed, combining the tensile mold and the bending mold together, and the bending and stretching process is completed by clamping and connecting the water tray undermates at one time through a hydraulic press to ensure that the shape and size meet the requirements of the drawings.
The shape and size of the water-connecting tray are achieved at one time to meet the requirements, reducing production difficulty, saving time and reducing costs.
Smart Images
Figure CN223277060U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a mould used in processing a water receiving tray of a large unit. Background Art
[0002] The large unit water tray is a component of Zhongxue refrigerator products. Its function is to collect condensed water. Since the middle of the water tray needs to collect water and the two sides need to overlap with the refrigerator, it has a special shape such as Figure 1 As shown, the entire plate is thin, concave in the middle, and bent on both sides. The current production method involves multiple steps, such as stretching the concave in the middle and stamping and rolling the left and right sides. This method is difficult to produce, and CNC bending cannot effectively guarantee the accuracy of the workpiece dimensions and angles. The process consumes a lot of man-hours, is inefficient, and the production cost per piece is high. Summary of the Invention
[0003] The problem to be solved by this utility model is to provide an integrated bending and stretching die for a large unit water tray. This allows the hydraulic press to clamp the water tray blank at one time and complete the bending and stretching processes at one time. This ensures that the shape and size of the water tray meet the requirements of the drawing and reduces the difficulty of production. At the same time, this utility model saves processing time, improves efficiency, and reduces production costs.
[0004] The utility model discloses a bending and stretching integrated die for a water receiving tray of a large unit, which comprises a stretching die and a bending die; the bending die comprises a bottom plate, a limiting block, a lower left bending die, a lower right bending die, a left welding bracket, an upper left bending die, and an upper right bending die; the bottom plate is fixed on a workbench of a hydraulic press, the limiting block is fixed in the middle of the bottom plate, and the lower left bending die and the lower right bending die are located on the left and right sides thereof; the left welding bracket is fixed under the left part of an upper frame of a press machine, the upper left bending die is fixed under the left welding bracket, and the upper right bending die is fixed under the right part of an upper frame of a press machine, the upper left bending die and the lower left bending die correspond to each other up and down and form a left bending die, and the upper right bending die and the lower right bending die correspond to each other up and down and form a right bending die; the stretching die is located in the middle of the left and right bending dies.
[0005] Furthermore, the top of the lower left bending die is tilted downward from the inside to the outside, and the bottom of the upper left bending die is tilted downward from the inside to the outside, and the bending surface shapes and sizes of the upper left bending die and the lower left bending die are consistent; the inner part of the top of the lower right bending die is a downward bevel, and the outer part is a horizontal plane higher than the lowest point of the bevel, the lower part of the upper right bending die is a downward bevel, and the bevel sizes and shapes of the upper right bending die and the lower right bending die are consistent; the left and right lower bending dies are close to the limit blocks.
[0006] Furthermore, the bending die also includes a positioning plate, which is fixed above the horizontal plane of the lower right bending die.
[0007] Furthermore, the stretching die includes a die and a punch. The die is fixed under the unloading guide column in the middle of the upper part of the press and moves up and down in the space formed between the left and right upper bending dies; the punch is connected to the telescopic rod of the oil cylinder at the lower part of the press, and the limit block and the base plate are both hollow and correspond to the hollow part of the press workbench up and down; the punch moves up and down in the hollow part of the press workbench, the base plate and the limit block; the die and the punch correspond to each other up and down.
[0008] Furthermore, the lower surface of the concave mold is concave inward, the upper surface of the convex mold is convex upward, and the shapes and sizes of the stretching surfaces of the concave mold and the convex mold are consistent.
[0009] The advantages of the bending and stretching integrated mold of the present invention are that the stretching mold and the bending mold are combined together: the middle is the stretching mold, and the left and right ends are respectively the left and right bending molds. In this way, after the hydraulic press clamps the water receiving pan blank at one time, the bending of the left and right sides and the stretching of the concave part in the middle are completed in succession, that is, the bending and stretching processes are completed at one time, ensuring that the shape and size of the water receiving pan meet the requirements of the drawing and reducing the difficulty of production. At the same time, since the stretching and bending are combined, time is saved, efficiency is improved, and production costs are reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 This is a schematic diagram of the water tray of a large unit.
[0011] Figure 2 It is a three-dimensional diagram of the bending and stretching integrated mold of the utility model.
[0012] Figure 3 It is the main view of the bending and stretching integrated mold of the utility model.
[0013] Figure 4 yes Figure 5 Top view of .
[0014] Figure 5 It is along Figure 4 Sectional view along line AA.
[0015] Figure 6 It is a schematic diagram of the process of processing using the utility model. DETAILED DESCRIPTION
[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0017] Example 1
[0018] from Figure 2 、 Figure 3 、 Figure 4 、 Figure 5It can be seen that the bending and stretching integrated mold of the water receiving tray of the large unit of the present invention includes a stretching mold and a bending mold; the bending mold includes a base plate 11, a limit block 12, a lower left bending mold 13, a lower right bending mold 14, a left welding bracket 15, an upper left bending mold 16, and an upper right bending mold 17; the base plate 11 is fixed on the hydraulic press workbench 31, the limit block 12 is fixed in the middle of the base plate 11, and the lower left bending mold 13 and the lower right bending mold 14 are located on its left and right sides; the left welding bracket 15 is fixed to the bottom of the left part of the press upper frame 32, the upper left bending mold 16 is fixed to the bottom of the left welding bracket 15, and the upper right bending mold 17 is fixed to the bottom of the right part of the press upper frame 32, the upper left bending mold 16 and the lower left bending mold 13 correspond to each other up and down and constitute a left bending mold, and the upper right bending mold 17 and the lower right bending mold 14 correspond to each other up and down and constitute a right bending mold; the stretching mold is located in the middle of the left and right bending molds.
[0019] The integrated mold of the utility model combines a stretching mold and a bending mold together, wherein the middle part is a stretching mold and the left and right ends are left and right bending molds respectively. In this way, a hydraulic press can clamp the blank of the water receiving pan at one time and complete the processes of stretching the middle concave and bending the left and right sides at one time, thereby ensuring that the shape and size of the water receiving pan meet the requirements of the drawing and reducing the difficulty of production. At the same time, since the stretching and bending are combined, time is saved, efficiency is improved and production cost is reduced.
[0020] Considering that the overall size of the mold is too large, from the perspective of process optimization, the upper and lower integral molds are made separately and connected together by welding supports, etc. Among them, the upper plane of the limit block 12 is the parting surface of the upper and lower molds, that is, the workpiece.
[0021] Example 2
[0022] from Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 It can be seen that the bending and stretching integrated mold of the present invention: the top of the lower left bending mold 13 is tilted downward from the inside to the outside, and the bottom of the upper left bending mold 16 is tilted downward from the inside to the outside, and the bending surface shapes and sizes of the upper left bending mold 13 and the lower left bending mold 16 are consistent; the inner part of the upper right bending mold 14 is a downward bevel, and the outer part is a horizontal plane higher than the lowest point of the bevel, the lower part of the upper right bending mold 17 is a downward bevel, and the bevel sizes and shapes of the upper right bending mold 17 and the lower right bending mold 14 are consistent; the left and right lower bending molds are close to the limit block 12.
[0023] The lower left bending die 13 and the upper left bending die 16 form the left bending die, which bends the left portion of the water tray blank into its final left shape. The lower right bending die 14 and the upper right bending die 17 form the right bending die, which bends the right portion of the water tray blank into its final right shape. Because the bending shape is controlled by the shape of the bending die itself, the accuracy of the workpiece dimensions and angles can be guaranteed.
[0024] Example 3
[0025] from Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 It can be seen that the bending and stretching integrated mold of the present invention: the bending mold also includes a positioning plate 18, and the positioning plate 18 is fixed above the horizontal surface of the lower right bending mold 14.
[0026] When the water tray blank is placed on the limiting block 12, it is further positioned in the left and right directions by the positioning plate 18, thereby ensuring reliability during bending.
[0027] Example 4
[0028] from Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 It can be seen that the bending and stretching integrated mold of the utility model: the stretching mold includes a die 21 and a punch 22, the die 21 is fixed under the unloading guide column 33 in the middle of the upper part of the press, and moves up and down in the space formed between the left and right upper bending molds; the punch 22 is connected to the telescopic rod 34 of the lower cylinder of the press, and the limit block 12 and the base plate 11 are both hollow and correspond to the hollow part of the press workbench 31 up and down; the punch 22 moves up and down in the hollow part of the press workbench 31, the base plate 11 and the limit block 12; the die 21 and the punch 22 correspond to each other up and down.
[0029] The die 21 and the punch 22 form a stretching die, and the middle of the blank is stretched under the joint action of the two: after the left and right ends of the blank are bent and formed, the lower cylinder of the press works, and its telescopic rod 34 drives the punch 22 to move upward, and the upper middle unloading guide column 33 of the press drives the die 21 to move downward. The die 21 stops when it contacts the blank, and the punch 22 continues to move upward to stretch the middle part of the blank. Since the left and right bent parts are fixed at this time, the relative position of the stretched part and the bent part is guaranteed, so that the size of the final water receiving tray meets the requirements of the drawing.
[0030] Example 5
[0031] from Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 It can be seen that the bending and stretching integrated mold of the present invention has the following features: the lower surface of the female mold 21 is concave inward, the upper surface of the male mold 22 is convex upward, and the shapes and sizes of the stretching surfaces of the female mold 21 and the male mold 22 are consistent.
[0032] The shape and size of the stretching surfaces of the concave die 21 and the convex die 22 are consistent with the final shape and size of the middle of the water receiving tray, thereby ensuring the shape and size of the final product.
[0033] The utility model discloses a bending and stretching integrated die: a bottom plate, a lower left bending die, a lower right bending die, and a punch form a lower die, the lower die is mounted on a T-slot workbench of a hydraulic press through the bottom plate, and is tightened by a pressure plate screw; a limit block is fixedly connected to the bottom plate by bolts; the punch is connected to the telescopic rod of the lower oil cylinder of the press; the upper left bending die, the left welding bracket, the upper right bending die, and the die form an upper die, and the upper die is connected to the lower side of the upper frame of the hydraulic press by bolts; wherein the die is connected to a discharge guide column in the middle of the upper part of the hydraulic press.
[0034] The working principle of the utility model bending and stretching integrated die is as follows Figure 6 As shown: Figure 6 a: Start the motor, and the upper mold moves up 100mm along with the middle slide; place the laser blanking part (0.3mm aluminum plate) of the water receiving tray on the limit block and position it left and right using the positioning plate; Figure 6 b: Then the hydraulic press drives the left and right upper bending dies to the parting surface of the workpiece at the limit block, and bends the left and right ends of the water tray to form the connection; Figure 6 c: Then the unloading guide column in the middle of the upper part of the press drives the die to move downward, and the telescopic rod of the oil cylinder in the lower part of the press drives the punch to move upward. When the die contacts the blank, it stops moving, and the punch continues to move upward to stretch the middle part of the blank. Since the left and right bending parts are fixed at this time, the relative position of the stretched part and the bending part is guaranteed, so that the size of the final water receiving tray meets the requirements of the drawing; finally, open the upper slide and take out the water receiving tray workpiece.
[0035] The advantages of the bending and stretching integrated mold of the present invention are that the stretching mold and the bending mold are combined together: the middle is the stretching mold, and the left and right ends are respectively the left and right bending molds. In this way, after the hydraulic press clamps the water receiving pan blank at one time, the bending of the left and right sides and the stretching of the concave part in the middle are completed in succession, that is, the bending and stretching processes are completed at one time, which ensures that the shape and size of the water receiving pan meet the requirements of the drawing and reduces the difficulty of production. At the same time, since the stretching and bending are combined, time is saved, efficiency is improved, and production costs are reduced.
[0036] The bending and stretching integrated mold of the utility model is not limited to the processing of large unit water receiving trays. It can be used when thin plate parts need to be stretched and bent, etc., as long as the shapes and sizes of the stretching mold and the bending mold are changed.
Claims
1. The bending and stretching integrated die for the water tray of large units is characterized by: The invention comprises a stretching die and a bending die; the bending die comprises a bottom plate (11), a limiting block (12), a lower left bending die (13), a lower right bending die (14), a left welding bracket (15), an upper left bending die (16), and an upper right bending die (17); the bottom plate (11) is fixed on a hydraulic press workbench (31); the limiting block (12) is fixed in the middle of the bottom plate (11); the lower left bending die (13) and the lower right bending die (14) are located on the left and right sides thereof; the left welding bracket (15) is fixed on the left and right sides of the bottom plate (11); the lower left bending die (13) and the lower right bending die (14) are located on the left and right sides of the bottom plate (11); the lower left bending die (13) and the lower right bending die (14) are located on the left and right sides of the bottom plate (11); the lower left welding bracket (15) is fixed on the left and right sides of the bottom plate (11); the lower left bending die (13) and the lower right bending die (14) are located on the left and right sides of the bottom plate (11); the lower left welding bracket (15) is fixed on the left and right sides of the bottom plate (11); the lower left bending die (13) and the lower right bending die (14) are located on the left and right sides of the bottom plate (11); the lower left welding bracket (15) is fixed on the left and right sides of the bottom plate (11); the upper left bending die (16) and the upper right bending die (17) are located on the left and right sides of the bottom plate (11); the upper ... The connecting bracket (15) is fixed on the lower side of the left portion of the press upper frame (32); the upper left bending die (16) is fixed on the lower side of the left welding bracket (15); the upper right bending die (17) is fixed on the lower side of the press upper frame (32); the upper left bending die (16) and the lower left bending die (13) correspond to each other up and down and form a left bending die; the upper right bending die (17) and the lower right bending die (14) correspond to each other up and down and form a right bending die; and the stretching die is located in the middle of the left and right bending dies.
2. The bending and stretching integrated die according to claim 1, characterized in that: The upper surface of the left lower bending die (13) is tilted downward from the inside to the outside, and the lower surface of the left upper bending die (16) is tilted downward from the inside to the outside. The bending surface shapes and sizes of the upper left bending die (16) and the lower left bending die (13) are consistent. The upper surface of the right lower bending die (14) is internally inclined downward and externally formed as a horizontal plane higher than the lowest point of the inclined angle. The lower portion of the right upper bending die (17) is an inclined downward. The inclined angle sizes and shapes of the upper right bending die (17) and the lower right bending die (14) are consistent. The left and right lower bending dies are close to the limit block (12).
3. The bending and stretching integrated die according to claim 1, characterized in that: The bending die also includes a positioning plate (18), which is fixed above the horizontal plane of the lower right bending die (14).
4. The bending and stretching integrated die according to claim 1, characterized in that: The stretching die comprises a die (21) and a punch (22). The die (21) is fixed below a discharge guide column (33) in the middle of the upper part of the press and moves up and down in the space formed between the left and right upper bending dies. The punch (22) is connected to the telescopic rod (34) of the oil cylinder at the lower part of the press. The limit block (12) and the bottom plate (11) are both hollow and correspond to the hollow part of the hydraulic press workbench (31) in the upper and lower parts. The punch (22) moves up and down in the hollow parts of the hydraulic press workbench (31), the bottom plate (11) and the limit block (12). The die (21) and the punch (22) correspond to each other in the upper and lower parts.
5. The bending and stretching integrated die according to claim 4, characterized in that: The lower surface of the concave die (21) is concave inward, and the upper surface of the convex die (22) is convex upward. The shapes and sizes of the stretching surfaces of the concave die (21) and the convex die (22) are consistent.