A tool structure for improving flatness of a magnesium alloy thin-walled part

Abstract

The application relates to the technical field of thin-walled part machining, and discloses a tool structure for improving flatness of a magnesium alloy thin-walled part, which comprises a flattening device for flattening treatment of the magnesium alloy thin-walled part, the flattening device is respectively provided with an upper die plate and a lower die plate, a plurality of detection pieces for detecting the thick positions of the pressed workpieces are arranged in the upper die plate, and a plurality of heating blocks for heating the workpieces at different positions are arranged in the lower die plate; the application effectively solves the problem that, when the planar shaping device heats the thin-walled part, the thin-walled part has different positions and thicknesses, the thin-walled part cannot be heated in a differentiated manner according to the requirements of different areas, the heating efficiency is low when heating, and energy is wasted.

Description

Technical Field

[0001] This invention relates to the field of thin-walled part processing technology, and in particular to a tooling structure for improving the flatness of magnesium alloy thin-walled parts. Background Technology

[0002] Thin-walled automotive components are an important type of automotive parts. They typically have thinner walls, reducing the overall weight of the vehicle while maintaining strength and functionality, thus contributing to improved fuel efficiency and vehicle performance. Common thin-walled automotive components include body panels (such as door panels and engine hoods), interior trim (such as dashboard frames), and some structural components.

[0003] Most thin-walled automotive parts are made of magnesium alloy. Magnesium alloy has excellent shock absorption properties, effectively absorbing and reducing vibrations and noise during vehicle operation, improving ride comfort. It also boasts high strength, providing better strength and rigidity support, ensuring the stability and reliability of the vehicle during operation. During the processing and forming of magnesium alloy thin-walled automotive parts, localized unevenness or deformation may occur. To improve the flatness accuracy of these parts, they are flattened using planar forming equipment after production. Furthermore, internal stress is generated during the forming process; planar forming and flattening can eliminate or homogenize this internal stress to some extent, enhancing the structural stability and durability of the parts.

[0004] Currently, when flattening thin-walled magnesium alloy parts using planar forming equipment, the thin-walled parts need to be placed on the clamping fixture on the planar forming machine first. After the thin-walled parts are placed, the planar forming machine is started to flatten them. During the flattening process, the thin-walled parts need to be heated to release and redistribute the residual stress inside the workpiece, reducing uneven deformation and dimensional errors caused by residual stress during the forming process. This also makes the thin-walled parts easier to deform, reducing the risk of fracture during the forming process and improving the formability of the workpiece. However, the thickness of the thin-walled parts varies in different locations, and the heating cannot be differentiated according to the needs of different areas, resulting in low heating efficiency and energy waste. Summary of the Invention

[0005] The purpose of this invention is to solve the problem mentioned in the background art that when the existing planar shaping equipment heats thin-walled parts, the thickness of the thin-walled parts varies at different locations, and the heating cannot be differentiated according to the needs of different areas, resulting in low heating efficiency and easy energy waste.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A tooling structure for improving the flatness of thin-walled magnesium alloy parts includes a flattening device for flattening the thin-walled magnesium alloy parts. The flattening device is provided with an upper template and a lower template. The upper template is provided with a number of detection pieces for detecting the thickness of the pressed workpiece. The lower template is provided with a number of heating blocks for heating the workpiece at different temperatures. The detection pieces are provided with connecting pieces that allow for quick installation and disassembly.

[0007] Preferably, the upper template further includes a pressing plate, a movable plate is provided below the pressing plate, a pressing plate is provided below the movable plate, and a plurality of the detection components are disposed in the pressing plate. Each detection component includes a mounting block and a pressure sensor is provided in the mounting block. When the lower pressing plate contacts the workpiece and presses it, the pressure value data at each position can be detected in real time through the plurality of pressure sensors, and the detected pressure value can be fed back to the controller so as to control the heating temperature at different positions.

[0008] Preferably, the pressing plate includes a lower pressing plate, the lower pressing plate is provided with a connecting groove, the connecting groove is provided with a connecting plate, one side of the connecting plate is located in the connecting groove, and is provided with a plurality of mounting grooves, the plurality of the detection components are all located in the mounting grooves, and the connecting plate and the lower pressing plate are connected by bolts.

[0009] Preferably, the connector includes a spring and a rotating rod. The upper end of the rotating rod is provided with a lever, the spring is provided with a positioning bead, the inner end of the rotating rod is provided with a connecting block, and the end of the connecting block away from the rotating rod is provided with a positioning block that can quickly cooperate with the positioning bead.

[0010] Preferably, there are two connectors, which are symmetrically located on both sides of the mounting block. The rotating rod is rotatably mounted on the connecting plate. The mounting block has a movable cavity and a second connecting groove. The spring and the positioning bead are both located in the movable cavity. The second connecting groove has a movable hole communicating with the movable cavity. The positioning bead corresponds to the movable hole. The second movable cavity allows the spring to have sufficient space to deform. The positioning bead can abut against the positioning block through the movable hole. The positioning block can move into the second connecting groove, so that the positioning block and the positioning bead can be connected.

[0011] Preferably, the mounting groove is symmetrically provided with a storage groove one, the positioning block is located in the connecting groove two, and a positioning groove is provided above the positioning block to cooperate with the positioning bead. The positioning groove allows the positioning block to cooperate with the positioning bead, so that the positioning bead can press the positioning block, and the mounting block can be stably installed in the mounting groove one.

[0012] Preferably, the mounting groove is provided with a through hole, and the connecting plate is provided with a plurality of wiring grooves on the side away from the mounting groove. The data line and power line of the pressure sensor pass through the through hole and are in the wiring groove. The pressure sensor on the mounting block passes through the through hole and the data line and power line are arranged in the wiring groove. The wiring groove can be used to route the data line and power line to the outside of the lower pressure plate for connection with the controller.

[0013] Preferably, the lower template further includes a heating groove, in which a heating plate is provided. The heating plate has several mounting slots on one side of the heating groove, and each of the mounting slots has a heating block. The heating block is equipped with a heating wire and a temperature sensor. The heating wire is located on the side of the heating block that contacts the lower template. The heating block can heat the lower template, thereby heating the workpiece to be flattened. The temperature sensor can detect the stability of the heating, and the controller can control the temperature of the heating wire.

[0014] Preferably, the heating block is provided with a through hole II, and the heating plate is provided with a plurality of wiring grooves II on the side away from the heating tank. The power line on the heating wire passes through the through hole II and is in the wiring grooves II. The data line and power line on the temperature sensor also pass through the through hole II and are in the wiring grooves II. The power line and data line on the heating block that pass through the through hole II can be routed through the wiring grooves II. The data line and power line can be routed to the outside of the heating plate through the wiring grooves II for connection with the controller.

[0015] Preferably, two connectors are symmetrically provided on both sides of the heating block. The connectors on the heating block are used for quick installation and disassembly between the heating block and the heating groove. The heating groove is provided with a second storage slot for storing the positioning block. The connectors enable the heating block to be quickly removed or installed from the heating plate. The pressure sensor and temperature sensor are both connected to the controller via data cables. The pressure sensor can transmit the detected pressure value to the controller. The controller analyzes the pressure at different locations to determine the thicker parts of the product, thereby increasing the temperature generated by the heating wire at that location. The temperature sensor can detect the heating temperature of the heating block.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This invention, through the setting of multiple detection components, enables the upper template to detect pressure data at various positions in real time during the flattening process of the product. Thicker parts of the workpiece will produce a smaller amount of deformation under pressure, resulting in a relatively higher pressure value detected by the pressure sensor at that position. The data detected by several pressure sensors are transmitted to the controller. The controller uses an algorithm to analyze and determine the thicker parts of the product, and through the setting of heating blocks, it can perform different temperature treatments on different thicknesses of the product, thereby achieving heating temperature for different parts of the workpiece. This makes the heating process more flexible and accurate, and can perform differentiated heating according to the needs of different areas. It also improves the heating efficiency of the workpiece while reducing energy waste. The modular design allows maintenance personnel to quickly remove damaged components when pressure sensors, temperature sensors, or heating wires are damaged, facilitating the replacement and installation of new parts. Furthermore, the modular design effectively reduces equipment maintenance costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a structural view of the upper and lower templates of the present invention; Figure 3 This is a structural view of the pressing plate of the present invention; Figure 4 This is a view showing the position of the detection element in this invention; Figure 5 This is a cross-sectional view of the pressing plate portion of the present invention; Figure 6 For the present invention Figure 5 Enlarged view at point A in the middle; Figure 7 This is a positional view of the connecting groove of the present invention; Figure 8 This is a structural view of the detection element of the present invention; Figure 9 This is a cross-sectional view of the mounting block of the present invention; Figure 10 This is a view showing the positions of the movable cavity, movable hole, and connecting groove of the present invention. Figure 11 This is a structural view of the connector of the present invention; Figure 12This is an exploded view of the connector structure of the present invention; Figure 13 This is a view showing the position of the heating block according to the present invention; Figure 14 For the present invention Figure 13 Enlarged view at point B; Figure 15 This is a sectional view of the lower template of the present invention; Figure 16 For the present invention Figure 15 Enlarged view at point C; Figure 17 This is a view showing the positions of the wiring groove 2 and the heating groove of the present invention.

[0019] Drawing number descriptions: 1. Upper template; 11. Pressing plate; 12. Moving plate; 13. Pressing plate; 131. Lower pressing plate; 1311. Connecting groove one; 132. Connecting plate; 133. Mounting groove one; 1331. Storage groove one; 134. Through hole one; 135. Inspection piece; 1351. Mounting block; 13511. Movable cavity; 13512. Movable hole; 13513. Connecting groove two; 135 2. Pressure sensor; 1353. Spring; 1354. Positioning bead; 1355. Rotating rod; 1356. Toggle block; 1357. Connecting block; 1358. Positioning block; 1359. Positioning groove; 136. Wiring groove one; 2. Lower template; 21. Heating groove; 22. Heating plate; 221. Mounting groove two; 222. Storage groove two; 23. Heating block; 24. Through hole two; 25. Wiring groove two. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings.

[0021] The following description is intended to disclose the invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the invention.

[0022] Those skilled in the art should understand that, in the disclosure of this invention, the terms "longitudinal," "lateral," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing this invention and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this invention.

[0023] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number. Example

[0024] Please see Figures 1-17 A tooling structure for improving the flatness of thin-walled magnesium alloy parts includes a flattening device for flattening the thin-walled magnesium alloy parts. The flattening device is provided with an upper template 1 and a lower template 2. The upper template 1 is provided with several detection elements 135 for detecting the thickness of the workpiece during pressing. The lower template 2 is provided with several heating blocks 23 for heating the workpiece at different positions. The detection elements 135 are provided with connecting parts that can be quickly installed and disassembled. The upper template 1 also includes a pressing plate 11. A moving plate 12 is provided below the pressing plate 11. A pressing plate 13 is provided below the moving plate 12. The detection elements 135 are all set in the pressing plate 13. The detection elements 135 include mounting blocks 1351. Pressure sensors 1352 are provided in the mounting blocks 1351. When the lower pressing plate 131 contacts the workpiece and presses it, the pressure value data at each position can be detected in real time by the pressure sensors 1352, and the detected pressure value can be fed back to the controller to control the heating temperature at different positions.

[0025] The pressing plate 13 includes a lower pressing plate 131, a connecting groove 1311 on the lower pressing plate 131, a connecting plate 132 inside the connecting groove 1311, one side of the connecting plate 132 being in the connecting groove 1311, and having several mounting grooves 133, with several detection pieces 135 all located in the mounting grooves 133. The connecting plate 132 and the lower pressing plate 131 are connected by bolts. The connecting piece includes a spring piece 1353 and a rotating rod 1355. The upper end of the rotating rod 1355 has a lever 1356, the spring piece 1353 has a positioning bead 1354, the inner end of the rotating rod 1355 has a connecting block 1357, and the end of the connecting block 1357 away from the rotating rod 1355 has a positioning block 1358 that can quickly engage with the positioning bead 1354.

[0026] Two connectors are provided, symmetrically located on both sides of the mounting block 1351. The rotating rod 1355 is rotatably mounted on the connecting plate 132. The mounting block 1351 has a movable cavity 13511 and a second connecting groove 13513. The spring piece 1353 and the positioning bead 1354 are both located in the movable cavity 13511. The second connecting groove 13513 has a movable hole 13512 communicating with the movable cavity 13511. The positioning bead 1354 is positioned corresponding to the movable hole 13512. The second movable cavity 13511 allows the spring piece 1353 to have sufficient space to deform. The positioning bead 1354 can abut against the positioning block 1358 through the movable hole 13512. The positioning block 1358 can move into the second connecting groove 13513, so that the positioning block 1358 and the positioning bead 1354 can be connected.

[0027] The mounting slot is symmetrically provided with a first storage slot 1331. A positioning block 1358 is located in a second connecting slot 13513. Above the positioning block 1358 is a positioning groove 1359 that mates with a positioning bead 1354. The positioning groove 1359 allows the positioning block 1358 to engage with the positioning bead 1354, enabling the positioning bead 1354 to press down on the positioning block 1358. This ensures that the mounting block 1351 is stably installed in the first mounting slot 133. The first mounting slot 133 has a through hole 134, and a connecting plate... On the side away from the mounting slot 133, there are several wiring slots 136. The data lines and power lines of the pressure sensor 1352 pass through the through hole 134 in the wiring slots 136. The pressure sensor 1352 on the mounting block 1351 passes through the through hole 134 to pass through the data lines and power lines, and the data lines and power lines are arranged in the wiring slots 136. The data lines and power lines can be routed to the outside of the lower pressure plate 131 through the wiring slots 136 for connection with the controller.

[0028] The lower template 2 also includes a heating groove 21, within which a heating plate 22 is provided. Several mounting slots 221 are located on one side of the heating plate 22 within the heating groove 21. Each mounting slot 221 contains a heating block 23, which is equipped with a heating wire and a temperature sensor. The heating wire is located on the side of the heating block 23 that contacts the lower template 2. The heating block 23 heats the lower template 2, thereby heating the workpiece undergoing flattening. The temperature sensor detects the stability of the heating, allowing the controller to control the temperature of the heating wire. The heating block 23 has through holes 24. Several wiring slots 25 are located on the side of the heating plate 22 away from the heating groove 21. The power wire of the heating wire passes through the through holes 24 and into the wiring slots 25. The data wire and power wire of the temperature sensor also pass through the through holes 24 and into the wiring slots 25. The power and data cables passing through the through hole 24 can be routed through the cable tray 25. The cable tray 25 allows the data and power cables to be routed to the outside of the heating plate 22 for connection with the controller. Two connectors are also symmetrically provided on both sides of the heating block 23. The connectors on the heating block 23 are used for quick installation and removal between the heating block 23 and the heating groove 21. The heating groove 21 is provided with a storage slot 222 for storing the positioning block 1358. The connectors allow the heating block 23 to be quickly removed or installed from the heating plate 22. The pressure sensor 1352 and the temperature sensor are both connected to the controller through the data cable. The pressure sensor 1352 can transmit the detected pressure value to the controller. The controller analyzes the pressure at different locations to determine the thicker part of the product, thereby increasing the temperature generated by the heating wire at that location. The temperature sensor can detect the heating temperature of the heating block 23.

[0029] In use, the workpiece is placed on the lower template 2. The flattening device is activated and moves the upper template 1 downward, so that the upper template 1 contacts the workpiece placed on the lower template 2. As the upper template 1 moves downward, the pressure applied to the workpiece causes the lower pressure plate 131 to press against the workpiece. Several pressure sensors 1352 located in the lower pressure plate 131 can detect the pressure value data at each position in real time. The thicker part of the workpiece will produce a smaller deformation when subjected to pressure, resulting in a relatively higher pressure value detected by the pressure sensor 1352 at that position. The data detected by the pressure sensors 1352 is transmitted to the controller. The controller analyzes the thicker part of the product through an algorithm and increases the heating temperature of the heating block 23 corresponding to the thicker part of the workpiece. This allows for higher heating of the thicker part of the workpiece. Each heating block 23 can independently control the heating temperature and heating time, enabling heating of different parts of the workpiece. This makes the heating process more flexible and accurate, allowing for differentiated heating according to the needs of different areas, improving the heating efficiency of the workpiece while reducing energy waste. When the pressure sensor 1352 on a certain detection component 135 is damaged, first remove the lower pressure plate 131, and then remove the connecting plate 132, so that the detection component 135 inside the connecting plate 132 can be exposed. The maintenance personnel can rotate the rotating rod 1355 by turning the lever. The rotating rod 1355 can drive the connecting block 1357 to rotate, and then drive the positioning block 1358 to rotate, rotating the positioning block 1358 towards the storage slot 1331. When the positioning block 1358 rotates, it can push the positioning bead 1354 towards the spring piece 1353. The positioning bead 1354 is moved out of the positioning groove 1359 on the positioning block 1358, allowing the positioning block 1358 to rotate into the storage groove 1331. After the positioning blocks 1358 on both sides of the mounting block 1351 are rotated into the storage groove 1331, the maintenance personnel can directly remove the mounting block 1351 from the connecting plate 132, allowing the maintenance personnel to replace the damaged pressure sensor 1352 inside the mounting block 1351, thus facilitating the maintenance personnel to quickly disassemble and replace the damaged pressure sensor 1352. When a heating wire or temperature sensor on a heating block 23 is damaged, first remove the lower template 2, then remove the heating plate 22 so that the heating block 23 inside the heating plate 22 can be exposed. Then, by rotating the lever 1356 in the above manner, the positioning blocks 1358 on both sides of the heating block 23 can be rotated into the corresponding storage slot 222, so that maintenance personnel can easily replace the damaged heating wire or temperature sensor.

[0030] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments, and any modifications or variations of the embodiments of the present invention may be made without departing from the stated principles.

Claims

1. A method for using a tooling structure to improve the flatness of thin-walled magnesium alloy parts, characterized in that, Its tooling structure includes a flattening device for flattening thin-walled magnesium alloy parts; The flattening device is provided with an upper template (1) and a lower template (2). The upper template (1) is provided with a number of detection pieces (135) for detecting the thickness of the pressed workpiece. The lower template (2) is provided with a number of heating blocks (23) for heating the workpiece at different temperatures. The detection pieces (135) are provided with connecting pieces that can be quickly installed and disassembled. The upper template (1) also includes a pressing plate (11), a movable plate (12) is provided below the pressing plate (11), a pressing plate (13) is provided below the movable plate (12), and a plurality of the detection components (135) are all arranged in the pressing plate (13). The detection component (135) includes a mounting block (1351), and a pressure sensor (1352) is provided in the mounting block (1351). The lower template (2) also includes a heating groove (21), a heating plate (22) is provided in the heating groove (21), and the heating plate (22) has a plurality of mounting slots (221) on one side of the heating groove (21). Each of the mounting slots (221) is provided with a heating block (23), and the heating block (23) is provided with a heating wire and a temperature sensor. The workpiece is placed on the lower template (2). The flattening device is started and the upper template (1) is moved down so that the upper template (1) contacts the workpiece placed on the lower template (2). As the upper template (1) moves down, the pressure applied to the workpiece causes the lower pressure plate (131) to press against the workpiece. Several pressure sensors (1352) inside the lower pressure plate (131) can detect the pressure value data of each position in real time. The thicker part of the workpiece will produce a small amount of deformation when subjected to pressure, which will cause the pressure sensor (1352) at that position to detect a relatively high pressure value. The data detected by several pressure sensors (1352) is transmitted to the controller. The controller analyzes the thicker part of the product through the algorithm and increases the heating temperature of the heating block (23) corresponding to the thicker part of the workpiece. Each heating block (23) can independently control the heating temperature and heating time.

2. The method of using a tooling structure for improving the flatness of thin-walled magnesium alloy parts according to claim 1, characterized in that, The pressing plate (13) includes a lower pressing plate (131), the lower pressing plate (131) is provided with a connecting groove (1311), the connecting groove (1311) is provided with a connecting plate (132), one side of the connecting plate (132) is in the connecting groove (1311), and is provided with a plurality of mounting grooves (133), and a plurality of the detection pieces (135) are all in the mounting grooves (133).

3. The method of using a tooling structure for improving the flatness of thin-walled magnesium alloy parts according to claim 2, characterized in that, The connector includes a spring piece (1353) and a rotating rod (1355). The upper end of the rotating rod (1355) is provided with a lever (1356). The spring piece (1353) is provided with a positioning bead (1354). The inner end of the rotating rod (1355) is provided with a connecting block (1357). The end of the connecting block (1357) away from the rotating rod (1355) is provided with a positioning block (1358) that can quickly cooperate with the positioning bead (1354).

4. The method of using a tooling structure for improving the flatness of thin-walled magnesium alloy parts according to claim 3, characterized in that, Two connectors are provided, which are symmetrically located on both sides of the mounting block (1351). The rotating rod (1355) is rotatably mounted on the connecting plate (132). The mounting block (1351) is provided with a movable cavity (13511) and a second connecting groove (13513). The spring piece (1353) and the positioning bead (1354) are both located in the movable cavity (13511). The second connecting groove (13513) is provided with a movable hole (13512) that communicates with the movable cavity (13511). The positioning bead (1354) and the movable hole (13512) are positioned correspondingly.

5. The method of using a tooling structure for improving the flatness of thin-walled magnesium alloy parts according to claim 4, characterized in that, The mounting slot is symmetrically provided with a storage slot one (1331), the positioning block (1358) is located in the connecting slot two (13513), and the positioning block (1358) is provided with a positioning slot (1359) above it that cooperates with the positioning bead (1354).

6. The method of using a tooling structure for improving the flatness of thin-walled magnesium alloy parts according to claim 5, characterized in that, The mounting slot (133) is provided with a through hole (134), and the connecting plate (132) is provided with several wiring slots (136) on the side away from the mounting slot (133). The data line and power line on the pressure sensor (1352) pass through the through hole (134) and are in the wiring slots (136).

7. The method of using a tooling structure for improving the flatness of thin-walled magnesium alloy parts according to claim 6, characterized in that, The heating block (23) is provided with a through hole (24), and the heating plate (22) is provided with several wiring grooves (25) on the side away from the heating groove (21). The power line on the heating wire passes through the through hole (24) and is located in the wiring groove (25). The data line and power line on the temperature sensor also pass through the through hole (24) and are located in the wiring groove (25).

8. The method of using a tooling structure for improving the flatness of thin-walled magnesium alloy parts according to claim 7, characterized in that, Two connectors are also symmetrically provided on both sides of the heating block (23). The connectors on the heating block (23) are used for quick installation and disassembly between the heating block (23) and the heating groove (21). The heating groove (21) is provided with a second storage groove (222) for storing the positioning block (1358).

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