Quick-change type modular ECAP rivet mold equipment

Abstract

The utility model discloses quick-change modular ECAP rivet mold equipment, and relates to the technical field of ECAP molds, the quick-change modular ECAP rivet mold equipment comprises a mold mechanism, the mold mechanism comprises a base, a mounting groove is formed in the center of the upper side of the base, and a lower mold matched with the mounting groove is arranged in the mounting groove; the fixing mechanism is matched with a self-locking motor to work according to the clamping principle, the self-locking motor is used for driving a clamping piece to be clamped into a clamping groove or moved out of the clamping groove to fix or release fixation, professional tools and operation steps are not needed, the labor amount of workers is reduced, meanwhile, the replacement time of the lower die is shortened, and the production efficiency is improved. And the sealing mechanism is further arranged and matched with the fixing mechanism to open the two ports of the L-shaped channel in the process of fixing the lower die, and in the process of taking down the lower die, the sealing mechanism can be used for sealing the two ports, so that external dust or solid impurities are prevented from entering the L-shaped channel in the process of not using the lower die for a long time.

Description

Technical Field

[0001] This utility model relates to the field of ECAP mold technology, specifically a quick-change modular ECAP rivet mold device. Background Technology

[0002] ECAP (Equal Channel Angle Extrusion) is a typical SPD (Self-Proofing Process) pure shear deformation technique. The principle of the ECAP process is as follows: a block of material with a cross-sectional size almost equal to that of the die channel is placed into a well-lubricated channel inlet. Under the action of an external load, when the specimen is pressed into the intersection of the channels, near-ideal pure shear deformation occurs inside the specimen structure. Since the cross-sectional shape and area of ​​the specimen do not change before and after extrusion, a large cumulative strain can be obtained after multiple extrusion passes.

[0003] Patent CN209222912U discloses a replaceable equal channel corner extrusion die. The die fixing device is separate from the equal channel corner die. Once the die is damaged, the die can be replaced simply by loosening the fixing device. The die's extrusion die hole pattern can be designed independently, which avoids economic waste and does not delay the experimental process.

[0004] However, some shortcomings still exist:

[0005] This existing technology uses fixing bolts and fixing sleeves to fix the mold, which requires disassembling the fixing bolts when changing the mold. However, disassembling the fixing bolts not only requires the use of professional tools (wrench, screwdriver), but also generally requires multiple fixing bolts for mold stability, resulting in many disassembly and subsequent installation steps, which is time-consuming and makes mold replacement troublesome.

[0006] Therefore, those skilled in the art have proposed a quick-change modular ECAP rivet mold device. Utility Model Content

[0007] To address the shortcomings of existing technologies, this utility model provides a quick-change modular ECAP rivet mold device, which solves the problems mentioned above.

[0008] To achieve the above objectives, this utility model is implemented through the following technical solution: a quick-change modular ECAP rivet mold equipment, including a mold mechanism, the mold mechanism including a base, an installation groove is provided in the center of the upper side of the base, a lower mold adapted to it is provided in the installation groove, an L-shaped channel is provided on the upper side and the front side of the lower mold, and an inverted cavity is provided inside the base around the installation groove.

[0009] It also includes a fixing mechanism and a sealing mechanism. The fixing mechanism includes a bidirectional screw that is rotatably installed in the inner cavity and arranged laterally. Each thread of the bidirectional screw is provided with a thread seat. An installation plate is installed on the side of the thread seat. A set of slots is opened on both sides of the lower mold. Each slot is provided with a clip that extends into the inner cavity and connects with the installation plate on the same side.

[0010] The sealing mechanism includes two sealing plates located at and adapted to the two ports of the L-shaped channel, and also includes a moving component that works in conjunction with the fixing mechanism to drive the sealing plates to move.

[0011] As a further technical solution of this utility model, a self-locking motor with a drive end connected to one end of the bidirectional screw is installed on the side of the base.

[0012] As a further technical solution of this utility model, a strip groove communicating with the inner cavity is opened on one of the mounting plates on the upper side of the base, and a strip plate extending through the mounting plate to the outside of the base is installed on the upper side of the mounting plate near the strip groove.

[0013] As a further technical solution of this utility model, the moving mechanism includes a side plate installed on one side of the lower mold, a set of crossbars symmetrically installed on the side of the side plate, and a limit plate installed at the end of the crossbars.

[0014] As a further technical solution of this utility model, all crossbars in the assembly are slidably equipped with sliding plates on one side of the strip plate, and multiple evenly distributed springs are connected between the sliding plates and the side plates.

[0015] As a further technical solution of this utility model, the sides of the two sealing plates are jointly equipped with a connecting bracket that connects to the sliding plate.

[0016] As a further technical solution of this utility model, the mold mechanism also includes four rectangular guide telescopic rods installed on the upper side of the base. All the guide telescopic rods have a top plate installed on their upper ends. A top rod aligned with the top plate is installed on the lower side of the top plate directly above the upper port of the L-shaped channel.

[0017] Beneficial effects

[0018] This invention provides a quick-change modular ECAP rivet mold device. Compared with the prior art, it has the following advantages:

[0019] 1. A quick-change modular ECAP rivet mold equipment, wherein the fixing mechanism adopts the snap-fit ​​principle and works in conjunction with a self-locking motor. The self-locking motor drives the clip to snap into or out of the slot to fix or release the fixation. No special tools are required, the operation steps are simple, reducing the workload of the staff, while reducing the time for changing the lower mold and increasing work efficiency.

[0020] 2. A quick-change modular ECAP rivet mold equipment is also equipped with a sealing mechanism, which, in conjunction with the fixing mechanism, allows the two ports of the L-shaped channel to open during the fixing of the lower mold, and during the removal of the lower mold, the sealing mechanism can be used to seal the two ports to prevent external dust or solid impurities from entering the L-shaped channel during long-term non-use. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of a quick-change modular ECAP rivet mold equipment.

[0022] Figure 2 This is a side view of a quick-change modular ECAP rivet mold device.

[0023] Figure 3 This is a cross-sectional view of the mold mechanism of a quick-change modular ECAP rivet mold equipment.

[0024] Figure 4 This is a schematic diagram of the main disassembled structure of a quick-change modular ECAP rivet mold equipment.

[0025] Figure 5 This is a schematic diagram of the fixing mechanism of a quick-change modular ECAP rivet mold equipment.

[0026] Figure 6 This is a schematic diagram of the sealing mechanism of a quick-change modular ECAP rivet mold equipment.

[0027] Figure 7 This is a schematic diagram of the installation components of a quick-change modular ECAP rivet mold equipment.

[0028] In the diagram: 1. Mold mechanism; 101. Base; 102. Mounting slot; 103. Lower mold; 104. L-shaped channel; 105. Guide telescopic rod; 106. Top plate; 107. Top rod; 2. Fixing mechanism; 201. Bidirectional screw; 202. Threaded seat; 203. Slide rod; 204. Slider; 205. Mounting plate; 206. Clip; 207. Slot; 208. Self-locking motor; 209. Strip groove; 210. Strip plate; 3. Sealing mechanism; 301. Side plate; 302. Crossbar; 303. Limiting plate; 304. Slide plate; 305. Spring; 306. Sealing plate; 307. Connecting bracket; 4. Through hole; 5. Threaded hole; 6. Bolt. Detailed Implementation

[0029] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present disclosure are shown in the accompanying drawings.

[0030] like Figure 1-7 As shown, a quick-change modular ECAP rivet mold device disclosed herein may include:

[0031] Example 1:

[0032] like Figures 1-3 As shown, the device includes a mold mechanism 1, which includes a base 101. A mounting groove 102 is provided at the center of the upper side of the base 101. A lower mold 103 adapted to the mounting groove 102 is provided in the mounting groove 102. An L-shaped channel 104 is provided on the upper and front sides of the lower mold 103. The rivet workpiece can be subjected to the ECAP process in the L-shaped channel 104 on the lower mold 103. At the same time, the lower mold 103 adopts a modular approach and can be removed from the base 101. In this way, the L-shaped channel 104 with different rotation angles can be replaced. The lower mold 103 can also be replaced when the inner wall of the L-shaped channel 104 is severely worn.

[0033] like Figure 3 As shown, the mold mechanism 1 also includes four rectangular guide telescopic rods 105 installed on the upper side of the base 101. All the guide telescopic rods 105 have a top plate 106 installed on their upper ends. The top plate 106 is connected to the hydraulic rod. After the hydraulic rod extends or retracts, it can drive the top plate 106 to rise or fall. The guide telescopic rods 105 guide the rising and falling top plate 106.

[0034] like Figure 3 As shown, a top rod 107 is installed on the lower side of the top plate 106 directly above the upper port of the L-shaped channel 104, and aligned with it. The descending top plate 106 drives the top rod 107 to descend, and the descending top rod 107 pushes the rivet workpiece in the L-shaped channel 104 to move and deform, and then pushes it out from the lower port of the L-shaped channel 104.

[0035] In summary, before use, connect the top plate 106 to the hydraulic rod, place the rivet workpiece into the L-shaped channel 104, extend the hydraulic rod and drive the top rod 107 to descend through the top plate 106, the descending top rod 107 pushes the rivet workpiece in the L-shaped channel 104 to move and deform until it is pushed out from the lower end, and perform ECAP operation on the rivet workpiece. After that, the hydraulic rod shortens and drives the top rod 107 to rise, and the next operation can be repeated.

[0036] Meanwhile, a modular design is adopted. When different L-shaped channels 104 with different corner angles are needed, the original lower mold 103 can be removed from the mounting groove 102, and then the lower mold 103 with the corresponding L-shaped channel 104 can be installed in the mounting groove 102. At the same time, when the inner wall of the L-shaped channel 104 is worn, the lower mold 103 can also be replaced without scrapping the entire mold.

[0037] like Figure 4 and Figure 5As shown, the base 101 has an open-shaped inner cavity around the mounting groove 102, and also includes a fixing mechanism 2. The fixing mechanism 2 includes a bidirectional screw 201 that is rotatably installed in the inner cavity and arranged laterally. Each thread of the bidirectional screw 201 is provided with a thread seat 202. When the bidirectional screw 201 rotates, it drives the two thread seats 202 to move closer to each other. When the bidirectional screw 201 reverses, it drives the two thread seats 202 to move away from each other.

[0038] like Figure 4 and Figure 5 As shown, a mounting plate 205 is installed on the side of the threaded seat 202. A set of slots 207 are provided on both sides of the lower mold 103. Each slot 207 is provided with a clip 206 that extends into the inner cavity and connects to the mounting plate 205 on the same side. When the clip 206 is inserted into the slot 207 of the lower mold 103, the lower mold 103 can be fixed on the base 101. Otherwise, it cannot be fixed.

[0039] like Figure 5 As shown, a slide bar 203 is installed on one side of the bidirectional screw 201 on the inner wall of the inner cavity, and a slider 204 that slides on the slide bar 203 is installed on the end of the mounting plate 205. The moving threaded seat 202 drives the slide bar 203 to slide on the slider 204 through the mounting plate 205, thereby enhancing the stability of the mounting plate 205 when it moves.

[0040] like Figure 5 As shown, a self-locking motor 208 is installed on one side of the base 101 on one side of the bidirectional screw 201. The drive end of the self-locking motor 208 is connected to one end of the bidirectional screw 201. The self-locking motor 208 drives the bidirectional screw 201 to rotate in both directions. At the same time, when the self-locking motor 208 stops working, it suppresses the rotation of the bidirectional screw 201.

[0041] In summary, when installing the lower mold 103, place the lower mold 103 into the mounting slot 102, and align the two sets of slots 207 on both sides of the lower mold 103 with the corresponding two sets of clips 206. Then, the self-locking motor 208 drives the bidirectional screw 201 to rotate, driving the two threaded seats 202 to move closer to each other. Through the two mounting plates 205, the two sets of clips 206 move closer to each other until the two sets of clips 206 are fully inserted into the matching slots 207, thus fixing the lower mold 103 onto the base 101.

[0042] During disassembly, simply drive the self-locking motor 208 to reverse the bidirectional screw 201, causing the two threaded seats 202 to move away from each other, allowing the two sets of clips 206 to move out of the clipped slots 207, thus releasing the fixation on the lower mold 103. Then the lower mold 103 can be removed from the base 101.

[0043] like Figure 4 and Figure 6As shown, it also includes a sealing mechanism 3, which includes two sealing plates 306 located at the two ports of the L-shaped channel 104 and adapted to them. When the lower mold 103 is removed from the device, the two sealing plates 306 can be used to seal the two ports of the L-shaped channel 104 to prevent dust or impurities from entering the L-shaped channel 104 and scratching the inner wall of the L-shaped channel 104 or the surface of the workpiece during operation.

[0044] like Figure 6 As shown, the moving mechanism includes a side plate 301 installed on one side of the lower mold 103. A set of crossbars 302 are symmetrically installed on the side of the side plate 301. Limiting plates 303 are installed at the ends of the crossbars 302. Slide plates 304 are slidably arranged on all the crossbars 302 in the set. The slide plates 304 can slide on all the crossbars 302, while the limiting plates 303 limit the slide plates 304 on the crossbars 302.

[0045] like Figure 6 As shown, the two sealing plates 306 are connected by a connecting bracket 307 that connects to the slide plate 304. Multiple evenly distributed springs 305 are connected between the slide plate 304 and the side plate 301. The moving slide plate 304 can drive the two sealing plates 306 to move through the connecting bracket 307, so that the two ends of the L-shaped channel 104 can be opened or closed. The slide plate 304 moving towards the spring 305 will compress the spring 305. Afterwards, when the spring 305 rebounds, it will drive the slide plate 304 to return to its original position.

[0046] like Figure 4 As shown, a strip groove 209 communicating with the inner cavity is provided on the upper side of one of the mounting plates 205 on the upper side of the base 101. A strip plate 210 extending through the mounting plate 205 to the outside of the base 101 and located on one side of the slide plate 304 is installed on the upper side of the mounting plate 205 near the strip groove 209. During the fixing process of the lower mold 103, the two mounting plates 205 close to each other will drive the strip plate 210 to move. The moving strip plate 210 pushes the slide plate 304 to move, which in turn drives the two sealing plates 306 to move, opening the two ends of the L-shaped channel 104.

[0047] In summary, during the installation of the lower mold 103, the mounting plates 205 that are close to each other will cause the strip plate 210 to press against the slide plate 304 on the same side. The moving slide plate 304 compresses the spring 305 and at the same time causes the sealing plate 306 to move in the same direction, opening the two ends of the L-shaped channel 104. Afterwards, during the disassembly of the lower mold 103, the two mounting plates 205 move away from each other, causing the strip plate 210 to move in the opposite direction to release the pressure on the slide plate 304. The spring 305 rebounds and causes the slide plate 304 to return to its original position, thereby causing the two sealing plates 306 to return to their original position and seal the two ends of the L-shaped channel 104, preventing external dust or solid impurities from entering the interior of the L-shaped channel 104 during long-term non-use.

[0048] Example 2:

[0049] Based on Example 1, such as Figure 7 As shown, through holes 4 are provided at the corners of the side plate 301, and threaded holes 5 aligned with each through hole 4 are provided on the side of the lower mold 103. Bolts 6 are provided between the through holes 4 and the corresponding threaded holes 5.

[0050] When the L-shaped channel 104 is damaged and the lower mold 103 is scrapped, the four bolts 6 can be unscrewed from the four threaded holes 5 of the lower mold 103 to release the fixation between the side plate 301 and the sealing mechanism 3. Then, align the four through holes 4 on the side plate 301 of the sealing mechanism 3 with the four threaded holes 5 on the new lower mold 103, and screw in the bolts 6 one by one to install the sealing mechanism 3 on the new lower mold 103, thus avoiding the scrapping of the sealing mechanism 3.

[0051] The working principle of this utility model:

[0052] Before use, connect the top plate 106 to the hydraulic rod. Place the rivet workpiece into the L-shaped channel 104. The hydraulic rod extends and drives the top rod 107 to descend through the top plate 106. The descending top rod 107 pushes the rivet workpiece in the L-shaped channel 104 to move and deform until it is pushed out from the lower end. Perform ECAP operation on the rivet workpiece. Afterward, the hydraulic rod shortens and drives the top rod 107 to rise, and the next operation can be repeated.

[0053] When replacing the L-shaped channel 104 with different rotation angles, the self-locking motor 208 drives the bidirectional screw 201 in reverse to move the two mounting plates 205 away from each other, causing the two sets of clips 206 to move out of the slots 207 to release the fixation of the lower mold 103. The old lower mold 103 is removed, and the lower mold 103 with the corresponding L-shaped channel 104 is installed in the mounting groove 102, aligning the two sets of slots 207 with the clips 206. The self-locking motor 208 drives the bidirectional screw 201 to rotate, causing the two mounting plates 205 to move closer to each other, causing the two sets of clips 206 to be inserted into the slots 207 and fixed. The replacement is then complete.

[0054] During the installation of the lower mold 103, the mounting plates 205 that are close to each other will cause the strip plate 210 to squeeze the slide plate 304 on the same side. The moving slide plate 304 compresses the spring 305 and at the same time causes the sealing plate 306 to move in the same direction, opening the two ends of the L-shaped channel 104. Afterwards, during the disassembly of the lower mold 103, the two mounting plates 205 move away from each other, causing the strip plate 210 to move in the opposite direction to release the compression on the slide plate 304. The spring 305 rebounds and causes the slide plate 304 to return to its original position, thereby causing the two sealing plates 306 to return to their original position and seal the two ends of the L-shaped channel 104, preventing external dust or solid impurities from entering the interior of the L-shaped channel 104 during long-term non-use.

[0055] In the description of this specification, the references to terms such as "one embodiment / mode," "some embodiments / modes," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment / mode or example is included in at least one embodiment / mode or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment / mode or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments / modes or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments / modes or examples described in this specification, as well as the features of different embodiments / modes or examples.

[0056] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0057] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.

Claims

1. A quick-change modular ECAP rivet mold device, comprising a mold mechanism (1), the mold mechanism (1) comprising a base (101), a mounting groove (102) being provided at the center of the upper side of the base (101), a lower mold (103) adapted thereto being provided in the mounting groove (102), an L-shaped channel (104) being provided on the upper side and the front side of the lower mold (103), and an incision-shaped inner cavity being provided inside the base (101) around the mounting groove (102), characterized in that: It also includes a fixing mechanism (2) and a sealing mechanism (3). The fixing mechanism (2) includes a bidirectional screw (201) that is rotatably installed in the inner cavity and arranged laterally. Each thread of the bidirectional screw (201) is provided with a thread seat (202). An mounting plate (205) is installed on the side of the thread seat (202). A set of slots (207) are opened on both sides of the lower mold (103). Each slot (207) is provided with a clip (206) that extends into the inner cavity and connects to the mounting plate (205) on the same side. The sealing mechanism (3) includes two sealing plates (306) located at the two ports of the L-shaped channel (104) and adapted thereto. The sealing mechanism (3) also includes a moving component that works in conjunction with the fixing mechanism (2) to drive the sealing plates (306) to move.

2. The quick-change modular ECAP rivet mold equipment according to claim 1, characterized in that, A self-locking motor (208) with its drive end connected to one end of the bidirectional screw (201) is installed on the side of the base (101) on one side of the bidirectional screw (201).

3. The quick-change modular ECAP rivet mold equipment according to claim 2, characterized in that, The upper side of the base (101) has a strip groove (209) that communicates with the inner cavity on the upper side of one of the mounting plates (205). A strip plate (210) that extends through the mounting plate (205) to the outside of the base (101) is installed on the upper side of the mounting plate (205) near the strip groove (209).

4. The quick-change modular ECAP rivet mold equipment according to claim 3, characterized in that, The moving mechanism includes a side plate (301) installed on one side of the lower mold (103), a set of crossbars (302) symmetrically installed on the side of the side plate (301), and a limit plate (303) installed at the end of the crossbars (302).

5. The quick-change modular ECAP rivet mold equipment according to claim 4, characterized in that, All crossbars (302) in the group are equipped with sliding plates (304) that slide together on one side of the strip plate (210). Multiple evenly distributed springs (305) are connected between the sliding plates (304) and the side plates (301).

6. The quick-change modular ECAP rivet mold equipment according to claim 5, characterized in that, The two sealing plates (306) are mounted together on the sides with a connecting bracket (307) that connects to the slide plate (304).

7. The quick-change modular ECAP rivet mold equipment according to claim 6, characterized in that, The mold mechanism (1) also includes four rectangular guide telescopic rods (105) mounted on the upper side of the base (101). All the guide telescopic rods (105) are mounted on the upper end of a top plate (106). The lower side of the top plate (106) is mounted with an upper rod (107) aligned with it, directly above the upper port of the L-shaped channel (104).

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