A clamping tool and hot pressing apparatus

Abstract

The application discloses a clamping tool and a hot-pressing device. The clamping tool comprises a base, a clamping piece and a connecting rod assembly. The base comprises a bearing part and a connecting part which are connected. The bearing part is used for bearing a pin part. The connecting part is provided with a movable gap. The clamping piece is movably arranged in the movable gap. A clamping space is formed between the clamping piece and the bearing part. The connecting rod assembly is connected with the connecting part and the clamping piece respectively, so as to control the clamping piece to move close to or away from the bearing part, thereby adjusting the size of the clamping space. The clamping tool drives the clamping piece to clamp the pin part through the connecting rod assembly, so that the position of the pin part is prevented from deviating in the hot-pressing process, and the hot-pressing qualification rate of the part product is effectively ensured. Furthermore, the clamping tool drives the clamping piece to move away from the bearing part through the connecting rod assembly, so as to release the pin part, and the clamping tool is convenient to assemble and disassemble.

Description

Technical Field

[0001] This application relates to the field of hot pressing equipment technology, and more particularly to a clamping fixture and hot pressing equipment. Background Technology

[0002] Some parts require an insulating PET film coating during production, typically achieved through hot pressing. Traditional hot pressing techniques directly bond the part to the insulating PET film using heat and pressure. However, this method fails to effectively position and fix the part during hot pressing, leading to misalignment at the bonding surfaces and hindering proper adhesion. Summary of the Invention

[0003] The purpose of this invention is to provide a clamping fixture that can clamp and fix pin parts so that hot pressing equipment can hot press and coat the pin parts.

[0004] To achieve the above objectives, this application adopts the following technical solution:

[0005] On the one hand, the present invention proposes a clamping fixture, comprising:

[0006] The base includes a support portion and a connecting portion connected to each other; the support portion is used to support the pin parts; the connecting portion has a movable notch.

[0007] A clamping member is movably mounted within the movable notch, and a clamping space is formed between the clamping member and the bearing portion;

[0008] A linkage assembly connects the connecting part and the clamping member respectively, so as to control the clamping member to move closer to or further away from the bearing part, thereby adjusting the size of the clamping space.

[0009] In one embodiment of the present invention, the connecting part includes two pillars, which are spaced apart from each other on the bearing part to form an installation space. Each pillar has the movable notch. One end of the clamping member is placed on one of the pillars, and the other end is placed on the other pillar. The connecting rod assembly is connected to one of the pillars.

[0010] In one embodiment of the present invention, the linkage assembly includes:

[0011] A first link, one end of which is rotatably connected to the support column via a first fixed shaft;

[0012] The second link, one end of which is movably connected to the first link;

[0013] The third link has one end rotatably connected to the support column via a second fixed shaft, and the third link is movably connected to the end of the second link away from the first link. The third link has a sliding groove that extends along the length of the third link.

[0014] A connector, which passes through the sliding groove and connects to the clamping member.

[0015] In one embodiment of the present invention, the support column is provided with a positioning groove, which is used to accommodate and limit the second connecting rod. When the clamping member approaches the bearing part, the second connecting rod gradually abuts against the inner wall of the positioning groove.

[0016] In one embodiment of the present invention, the bearing portion is provided with a bearing surface, the bearing surface and the clamping member are located on the top side of the base, and the connecting rod assembly is connected to the connecting portion.

[0017] In one embodiment of the present invention, the surface of the bearing portion is recessed to form a plurality of receiving grooves, the receiving grooves being used to receive pin parts, and the bottom wall of the receiving grooves being provided with a plurality of partition plates to divide the receiving grooves into a plurality of fixing grooves.

[0018] In one embodiment of the present invention, the clamping fixture further includes an elastic layer, which is attached to the bearing portion.

[0019] In one embodiment of the present invention, a portion of the elastic layer is attached to the upper surface of the bearing portion, and one end of the elastic layer passes through the clamping space and is attached to the lower surface of the bearing portion. The clamping fixture further includes a fixing piece, which is disposed on the lower surface of the bearing portion and presses the elastic layer.

[0020] In one embodiment of the present invention, the base includes two connecting portions, which are respectively disposed at opposite ends of the bearing portion;

[0021] The clamping fixture includes two clamping members and two connecting rod assemblies. One clamping member and one connecting rod assembly are mounted on one end of the connecting portion, and the other clamping member and the other connecting rod assembly are mounted on the other end of the connecting portion.

[0022] On the other hand, the present invention also proposes a hot pressing device, which includes an upper mold, a lower mold, and a clamping fixture as described above, wherein the clamping fixture is disposed between the upper mold and the lower mold.

[0023] The beneficial effects of this application are as follows: The base supports the pin parts for hot-pressing and film coating by a hot-pressing device. The connecting part has a movable notch for mounting a clamping member. The clamping member moves within the movable notch to adjust the distance between itself and the supporting part, thereby adjusting the size of the clamping space. Thus, a portion of the pin part extends into the clamping space and is clamped and fixed by the clamping member, facilitating hot-pressing and film coating by the hot-pressing device. The movement of the clamping member is driven by a linkage assembly, which connects the connecting part and the clamping member, allowing the clamping member to move closer to or away from the supporting part to clamp or release the pin parts. Specifically, the linkage assembly drives the clamping member to clamp the pin parts, preventing positional displacement during hot pressing and effectively ensuring the hot-pressing pass rate of the parts. Furthermore, the linkage assembly drives the clamping member away from the supporting part to release the pin parts, facilitating assembly and disassembly. Attached Figure Description

[0024] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0025] Figure 1 This is a first-view schematic diagram of the overall structure of the clamping fixture of the present invention;

[0026] Figure 2 This is a second-view schematic diagram of the overall structure of the clamping fixture of the present invention;

[0027] Figure 3 This is an exploded view of the clamping fixture of the present invention;

[0028] Figure 4 This is a schematic diagram of the clamping member placed on the side of two pillars in one embodiment of the clamping fixture of the present invention;

[0029] Figure 5 This is a schematic diagram of the base structure in the clamping fixture of the present invention;

[0030] Figure 6 This is a schematic diagram of the overall structure of the clamping tool for assembling the pin parts of the present invention.

[0031] Figure 7 This is a longitudinal sectional view of the clamping fixture for assembling the pin parts of the present invention.

[0032] Figure 8 This is a side sectional view of the clamping fixture for assembling the pin parts of the present invention;

[0033] Figure 9 This is a bottom view of the clamping fixture assembling the pin parts according to the present invention;

[0034] Figure 10 for Figure 9 A magnified view of a section at point A in the middle;

[0035] Figure 11 This is a partial structural diagram of the clamping fixture of the present invention during the clamping of the pin parts;

[0036] Figure 12 This is a partial structural diagram of the clamping tool used in this invention to lock the pin parts;

[0037] Figure 13 This is a partial structural diagram of the clamping fixture during the process of loosening the pin part according to the present invention;

[0038] Figure 14 This is a schematic diagram of the hot pressing device of the present invention.

[0039] In the picture:

[0040] 100. Clamping fixture; 1. Base; 11. Bearing part; 111. Receiving groove; 112. Divider; 113. Fixing groove; 12. Connecting part; 121. Support column; 1211. Movable notch; 1212. Limiting block; 1213. Positioning groove; 2. Clamping part; 3. Linkage assembly; 31. First link; 32. Second link; 33. Third link; 331. Sliding groove; 34. Connecting part; 35. First fixed shaft; 36. Second fixed shaft; 4. Clamping space; 5. Elastic layer; 6. Fixing piece; 7. Installation space; 200. Pin part; 300. Upper mold; 400. Lower mold; 500. PET film; 600. Hot press plate. Detailed Implementation

[0041] To make the technical problems solved, the technical solutions adopted, and the technical effects achieved by this application clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0042] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0043] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0044] Please refer to the reference. Figure 1 and Figure 5 The present invention proposes a clamping fixture 100, including a base 1, a clamping member 2, and a connecting rod assembly 3. The base 1 includes a support portion 11 and a connecting portion 12 connected to each other. The support portion 11 is used to support the pin part 200. The connecting portion 12 has a movable notch 1211. The clamping member 2 is movably installed in the movable notch 1211. A clamping space 4 is formed between the clamping member 2 and the support portion 11. The connecting rod assembly 3 connects the connecting portion 12 and the clamping member 2 respectively to control the clamping member 2 to move closer to or away from the support portion 11, thereby adjusting the size of the clamping space 4.

[0045] Understandably, the support portion 11 has a flat plate structure to support the pin part 200, facilitating hot-pressing and film coating. The connecting portion 12 is located at one end of the support portion 11. The connection between the connecting portion 12 and the support portion 11 can be a fixed connection method such as integral molding, bonding, or welding to improve the connection stability. Alternatively, the connecting portion 12 and the support portion 11 can be connected by a detachable connection method such as threaded connection, snap-fit ​​connection, or pin connection, facilitating assembly and disassembly, allowing for the repair or replacement of certain components without replacing the entire assembly. It should be noted that the movable notch 1211 is connected to the side of the support portion 11. That is, when the clamping member 2 is installed at the movable notch 1211, at least one side of the clamping member 2 faces the side of the support portion 11, allowing these two opposing sides to clamp the pin part 200.

[0046] The movable notch 1211 and the bearing surface of the bearing portion 11 are located on the same side. When the clamping member 2 is installed in the movable notch 1211, the surface of the clamping member 2 is flush with the bearing surface of the bearing portion 11, preventing the clamping member 2 from protruding from the bearing portion 11 and thus preventing the clamping member 2 from obstructing the hot pressing equipment from performing the hot pressing operation. At the same time, the clamping member 2 can also be used to support part of the structure of the pin part 200. For example, part of the pin part 200 is inserted into the clamping space 4, another part is supported by the bearing portion 11, and another part is supported by the clamping member 2, so as to better fix the pin part 200, prevent the pin part 200 from shifting during the hot pressing process, and effectively improve the hot pressing coating effect.

[0047] The clamping member 2 can be a block, sheet, or roller structure, and is not limited thereto. It can be adjusted as needed, as long as it can clamp the pin part 200. To better clamp the pin part 200, the clamping member 2 can be made of materials such as rubber, plastic, or silicone, allowing for elastic deformation during clamping and resulting in a good clamping effect. Simultaneously, it can prevent the clamping member 2 from excessively compressing the pin part 200, thereby avoiding damage to the pin part 200. Of course, in other embodiments, an elastic layer 5 can be applied to the surfaces of the clamping member 2 and the bearing portion 11 to achieve pressure buffering and improve locking force. This application can also be used to clamp other parts or products to be processed, and is not limited to the pin part 200.

[0048] The connecting rod assembly 3 is rotatably connected to the connecting part 12 and the clamping member 2, respectively. Specifically, the connection can be made via a pivot shaft, allowing the connecting rod assembly 3 to be movable. For example, the clamping member 2 is connected to one end of the connecting rod assembly 3. Thus, when one end of the connecting rod assembly 3 is moved, the clamping member 2 at the other end of the connecting rod assembly 3 moves with the connecting rod assembly 3, thereby adjusting the distance between the clamping member 2 and the bearing part 11, and clamping or releasing the pin part 200 that extends into the clamping space 4.

[0049] This application uses the support portion 11 of the base 1 to support the plug part 200 for hot pressing and film coating by a hot press equipment. The connecting portion 12 has a movable notch 1211 for mounting the clamping member 2. The clamping member 2 moves within the movable notch 1211 to adjust the distance between itself and the support portion 11, thereby adjusting the size of the clamping space 4. In this way, a portion of the plug part 200 extends into the clamping space 4 and is clamped and fixed by the clamping member 2 to facilitate hot pressing and film coating by the hot press equipment. The movement of the clamping member 2 is driven by the linkage assembly 3, which connects the connecting portion 12 and the clamping member 2 respectively, so that the clamping member 2 moves closer to or away from the support portion 11 to clamp or release the plug part 200. That is, the clamping member 2 is driven by the linkage assembly 3 to clamp the pin part 200, so as to prevent the pin part 200 from shifting its position during the hot pressing process, effectively ensuring the hot pressing qualification rate of the part product. Furthermore, the clamping member 2 is driven away from the bearing part 11 by the linkage assembly 3 to loosen the pin part 200, which facilitates assembly and disassembly.

[0050] Please refer to the reference. Figure 2 and Figure 5 In one embodiment of the present invention, the connecting part 12 includes two pillars 121, which are spaced apart from the bearing part 11 to form an installation space 7. Each pillar 121 has an movable notch 1211. One end of the clamping member 2 is placed on one pillar 121 and the other end is placed on the other pillar 121. The connecting rod assembly 3 is connected to one of the pillars 121.

[0051] In this embodiment, both support columns 121 extend from the end face of the bearing portion 11 in a direction away from the bearing portion 11, and the two support columns 121 are parallel to each other to support the two ends of the clamping member 2 respectively, so that the two ends of the clamping member 2 are subjected to uniform force and have a good support effect. It can be understood that an installation space 7 is formed between the two support columns 121 to facilitate the installation of the clamping member 2. At the same time, the installation space 7 can form a clamping space 4 between the clamping member 2 and the bearing portion 11, so that the pin part 200 can pass through the clamping space 4 and the clamping is more stable. For example, the two ends of the clamping member 2 are respectively attached to the two support columns 121, and the two support columns 121 have movable notches 1211 corresponding to the clamping member 2. When the clamping member 2 is installed in the movable notch 1211, the upper surface of the clamping member 2 is flush with the upper surface of the bearing portion 11 to improve the bearing effect. Understandably, one end of the linkage assembly 3 is connected to one of the support pillars 121, and the linkage assembly 3 is connected to the clamping member 2 so as to drive the clamping member 2 to move within the movable notch 1211 via the linkage assembly 3.

[0052] Specifically, such as Figure 3 As shown, the clamping member 2 has mounting notches at both ends to overlap with the support column 121. Specifically, one wall of the mounting notch abuts against the upper surface of the support column 121, and the other wall abuts against the side wall of the support column 121. The bottom of the clamping member 2 protrudes to form a step, which is inserted between the two support columns 121 to prevent displacement of the clamping member 2 along the line connecting the two support columns 121. Simultaneously, the step increases the contact area with the bearing portion 11, thereby better clamping the pin part 200. It should be noted that the two support columns 121, the side of the clamping member 2 facing the bearing portion 11, and the side of the bearing portion 11 facing the clamping member 2 enclose a clamping space 4. A portion of the pin part 200 can be inserted between the two support columns 121 and clamped by the clamping member 2 and the bearing portion 11. Of course, if there is not much space at the bottom of the support part 11, the part of the pin part 200 inserted into the clamping space 4 shall not exceed the support column 121, that is, the bottom of the pin part 200 shall not protrude from the bottom surface of the support part 11 after being inserted into the clamping space 4.

[0053] In other embodiments, such as Figure 4 As shown, the clamping member 2 may be provided with hook structures at both ends. The hook structure at one end is located on the side of one support column 121 facing away from the installation space 7, and the hook structure at the other end is located on the side of another support column 121 facing away from the installation space 7. In this way, the clamping member 2 can only be displaced in the extension direction of the support column 121, thereby effectively limiting the clamping member 2 and facilitating the clamping of the pin part 200.

[0054] Optionally, a limiting block 1212 is provided at the end of the support column 121 away from the bearing part 11. The limiting block 1212 is used to stop the clamping member 2 installed in the movable notch 1211 to prevent the clamping member 2 from disengaging from the movable notch 1211 and to prevent the linkage assembly 3 from moving too much.

[0055] Please refer to the reference. Figure 2 and Figure 3 In one embodiment of the present invention, the linkage assembly 3 includes a first linkage 31, a second linkage 32, a third linkage 33, and a connector 34. One end of the first linkage 31 is rotatably connected to the support column 121 via a first fixed shaft 35. One end of the second linkage 32 is movably connected to the first linkage 31. One end of the third linkage 33 is rotatably connected to the support column 121 via a second fixed shaft 36, and the third linkage 33 is movably connected to the end of the second linkage 32 away from the first linkage 31. The third linkage 33 has a sliding groove 331 that extends along the length of the third linkage 33. The connector 34 passes through the sliding groove 331 and is connected to the clamping member 2.

[0056] Understandably, the first connecting rod 31 can rotate relative to the support column 121 via the first fixed shaft 35, and the third connecting rod 33 can also rotate relative to the support column 121 via the second fixed shaft 36. Furthermore, the third connecting rod 33 is provided with a sliding groove 331, through which a connecting member 34 passes and connects to the clamping member 2. When the third connecting rod 33 rotates, the clamping member 2 changes from rotation to sliding via the connecting member 34 and the sliding groove 331, thereby causing the clamping member 2 to move closer to or further away from the bearing portion 11. It should be noted that the sliding groove 331 extends along the length of the third connecting rod 33, and both the third connecting rod 33 and the clamping member 2 are fixedly connected to the connecting member 34. When the connecting member 34 slides in the sliding groove 331, the sidewall of the sliding groove 331 abuts against the connecting member 34, meaning that the third connecting rod 33 pushes the connecting member 34 to move, causing the clamping member 2 to follow the displacement of the connecting member 34.

[0057] Specifically, the two ends of the second link 32 are connected to the first link 31 and the third link 33 respectively, so that the first link 31 drives the third link 33 to rotate. That is to say, the link assembly 3 and the clamping member 2 combine to form a four-bar linkage and a crank-slider mechanism, and the rotation of the link assembly 3 is converted into the sliding of the clamping member 2.

[0058] The clamping or releasing of the pin part 200 can be achieved manually by the linkage assembly 3, without the need for additional energy drive, thus realizing energy saving and emission reduction. In other embodiments, the linkage assembly 3 can also be driven by other drive structures, which are not limited here. In order to facilitate the gripping of the first link 31 for operation, a handle is provided at the end of the first link 31 away from the second link 32.

[0059] In one embodiment, the second link 32 includes two sub-links, which are respectively located on both sides of the first link 31. That is, one end of the first link 31 is sandwiched between the two sub-links, and one end of the third link 33 is also sandwiched between the two sub-links, so that the forces on both sides of the first link 31 and the third link 33 are evenly distributed, and the connection is more stable than a single-sided connection.

[0060] Please refer to the reference. Figure 5 , Figure 9 and Figure 10 In one embodiment of the present invention, the support column 121 is provided with a positioning groove 1213, which is used to accommodate and limit the second connecting rod 32. When the clamping member 2 approaches the bearing part 11, the second connecting rod 32 gradually abuts against the inner wall of the positioning groove 1213.

[0061] Optionally, the positioning groove 1213 is formed in the side wall of the support 121 facing another support 121, such as... Figure 11 As shown, when the first link 31 drives the third link 33 to rotate, the second link 32 moves along with the first link 31 and the third link 33. Figure 12 As shown in the figure, F1 indicates the force direction of the second connecting rod 32, F2 indicates the force direction of the third connecting rod 33, and F3 indicates the force direction of the clamping member 2. When the clamping member 2 moves to clamp the pin part 200, the second connecting rod 32 moves to abut against the inner wall of the positioning groove 1213 to limit the continued movement of the second connecting rod 32, thereby preventing the clamping member 2 from excessively squeezing the pin part 200. For example, when the third connecting rod 33 rotates to be parallel to the end face of the bearing part 11, one side of the second connecting rod 32 abuts against the inner wall of the positioning groove 1213 to stop the second connecting rod 32 from continuing to rotate, that is, to prevent the clamping member 2 from continuing to move towards the bearing part 11. Specifically, when clamping the pin part 200, the force analysis of the second connecting rod 32 is as follows: Figure 12 As shown, the second link 32 is connected to the first link 31 and the third link 33 via a rotating shaft. The second link 32 is subjected to a negative torque relative to the rotating shaft from the third link 33 and a positive torque relative to the rotating shaft from the limiting surface of the base 1. Therefore, the second link 32 is in a stable equilibrium state, and the entire locking mechanism is locked. When the driving clamping member 2 moves away from the bearing part 11, as... Figure 13 As shown, the second link 32 gradually exits the positioning groove 1213.

[0062] It should be noted that the positioning groove 1213 is formed on the support column 121 where the connecting rod assembly 3 is located, to be adapted to abut against the second connecting rod 32. The positioning groove 1213 is a U-shaped groove, and its groove angle and depth can be determined according to the movement trajectory of the second connecting rod 32 to ensure that the second connecting rod 32 can be stopped and limited at a designated position.

[0063] like Figure 5As shown, in one embodiment of the present invention, the bearing portion 11 is provided with a bearing surface, the bearing surface and the clamping member 2 are located on the top side of the base 1, and the connecting rod assembly 3 is connected to the bottom side of the connecting portion 12. The top side is one side of the upper surface of the bearing portion 11, and the bottom side is one side of the lower surface of the bearing portion 11.

[0064] In this embodiment, the bearing surface is used to place the pin part 200 to facilitate hot pressing operation by the hot pressing equipment. Simultaneously, the clamping member 2 and the bearing surface are located on the same side. When the clamping member 2 clamps the pin part 200, a portion of the pin part 200 can also be supported on the upper surface of the clamping member 2, expanding the bearing area and improving the installation stability of the pin part 200. Optionally, when the clamping member 2 is installed in the movable notch 1211, the upper surface of the clamping member 2 is flush with the bearing surface to better support the pin part 200. Of course, in other embodiments, to avoid obstructing the pin part 200, a clearance groove can be formed on the clamping member 2 to facilitate the installation and fixation of the pin part 200.

[0065] Meanwhile, in order to avoid the linkage assembly 3 interfering with the hot-pressing coating of the pin part 200 placed on the bearing surface, the linkage assembly 3 is located on the side of the connecting part 12 facing away from the clamping member 2, that is, the clamping member 2 is located on the upper surface of the base 1, while the linkage assembly 3 is located on the lower surface of the base 1.

[0066] like Figure 3 As shown, in one embodiment of the present invention, a plurality of receiving grooves 111 are recessed on the surface of the support portion 11 for accommodating the pin parts 200. Thus, when the pin parts 200 are placed on the support portion 11, the receiving grooves 111 accommodate and limit the pin parts 200, preventing the pin parts 200 from shifting position and improving the coating effect. Optionally, the shape of the receiving grooves 111 is adapted to the pins of the pin parts 200 to better limit the pin parts 200. It is understood that a plurality of receiving grooves 111 can accommodate a plurality of pin parts 200, facilitating the clamping of more pin parts 200 and improving production efficiency.

[0067] In one embodiment of the present invention, a plurality of partition plates 112 protrude from the bottom wall of the receiving groove 111 to divide the receiving groove 111 into a plurality of fixing grooves 113. The plurality of fixing grooves 113 are used to accommodate a plurality of pins of the pin part 200 to improve adaptability. It is understood that the partition plates 112 extend in a straight line along the bottom wall of the receiving groove 111 to divide and form a plurality of elongated fixing grooves 113. The partition plates 112 can be an integral structure directly processed from the bearing part 11, or it can be a non-integral partition plate 112 made of metal or non-metal sheets inserted after the bearing part 11 is first processed to form the receiving groove 111. The function of the partition plates 112 is to constrain the pin part 200 and the film before hot pressing. Furthermore, since the pin part 200 has various styles (single pin, double pin, triple pin), a single partition plate 112 can also adapt to various pin combinations, including non-full load conditions. For example, a single-pin component 200 can be placed in one fixing slot 113, while a double-pin component 200 can be placed in two fixing slots 113 for fixing, and so on.

[0068] Please refer to the reference. Figure 6 and Figure 8 It should be noted that the height of the separator 112 should be lower than the height of the pin part 200 so that the pin part 200 can partially protrude from the fixing groove 113 when it is installed in the fixing groove 113, so as to facilitate the hot pressing equipment to perform hot pressing and film coating.

[0069] Please refer to the reference. Figure 2 , Figure 7 and Figure 8 In one embodiment of the present invention, the clamping fixture 100 further includes an elastic layer 5, which is attached to the bearing portion 11. The elastic layer 5 can be a silicone layer, a rubber layer, etc. To ensure that the pin part 200 is subjected to uniform force and heat when heated and pressurized, an elastic layer 5 is placed between the contact surface of the pin part 200 and the bearing portion 11, providing pressure buffer for the pin part 200 and also serving as the source of locking force for the clamping mechanism. In one embodiment, the elastic layer 5 can also extend into the clamping space 4 and be attached to the bearing portion 11. When the pin part 200 extends into the clamping space 4, the clamping member 2 clamps the pin part 200, causing the pin part 200 to abut against the elastic layer 5, thereby achieving a pressure buffering effect and improving the locking force of the clamping member 2 on the pin part 200. That is to say, the elastic layer 5 can be attached to the upper or lower surface of the bearing portion 11, or it can be attached to the surface of the bearing portion 11 in the clamping space 4, which is not limited here.

[0070] like Figure 7As shown, in one embodiment of the present invention, a portion of the elastic layer 5 is attached to the upper surface of the support portion 11, and one end of the elastic layer 5 passes through the clamping space 4 and is attached to the lower surface of the support portion 11. The clamping fixture 100 also includes a fixing piece 6, which is disposed on the lower surface of the support portion 11 and presses the elastic layer 5. Specifically, the elastic layer 5 can be pressed and fixed to the support portion 11 by the fixing piece 6. The connection method between the fixing piece 6 and the support portion 11 includes, but is not limited to, threaded connection, adhesive connection, or snap-fit ​​connection. For example, the elastic layer 5 is attached to the upper surface of the support portion 11 and extends to one side of the clamping space, passes through the clamping space 4 and is attached to the lower surface of the support portion 11, and is pressed and fixed by the fixing piece 6. That is, the fixing piece 6 is located on the side of the support portion 11 away from the receiving groove 111 to avoid obstructing the hot-pressing coating of the pin part 200.

[0071] like Figure 6 As shown, in one embodiment of the present invention, the base 1 includes two connecting portions 12, which are respectively disposed at opposite ends of the bearing portion 11. The clamping fixture 100 also includes two clamping members 2 and two connecting rod assemblies 3, one clamping member 2 and one connecting rod assembly 3 being mounted on one end of the connecting portion 12, and the other clamping member 2 and the other connecting rod assembly 3 being mounted on the other connecting portion 12. It can be understood that clamping spaces 4 are formed at both ends of the base 1, which can respectively clamp the pin parts 200, allowing more pin parts 200 to be produced in a single hot-pressing coating operation, effectively improving production efficiency. Optionally, the two connecting portions 12 are symmetrically arranged about the bearing portion 11, the two clamping members 2 are symmetrically arranged about the bearing portion 11, and the two connecting rod assemblies 3 are symmetrically arranged about the bearing portion 11, so that the two ends of the bearing portion 11 are subjected to uniform force.

[0072] In one embodiment, the support portion 11 has connecting portions 12 on both sides in the x-direction. Correspondingly, clamping members 2 and connecting rod assemblies 3 are provided on both sides of the base 1 in the x-direction. The receiving groove 111 on the top side of the support portion 11 extends in the x-direction, and several receiving grooves 111 are arranged in the y-direction. It should be noted that the x-direction is perpendicular to the y-direction. That is to say, the pin parts 200 can be placed and clamped on both sides of the support portion 11 in the x-direction, so that the force on both sides of the support portion 11 is uniform. The arrangement of several receiving grooves 111 in the y-direction improves the clamping capacity of the clamping fixture 100, which can clamp more pin parts 200.

[0073] like Figure 14As shown, the present invention also proposes a hot pressing device, which includes an upper mold 300, a lower mold 400, and a clamping fixture 100 as described above, with the clamping fixture 100 positioned between the upper mold 300 and the lower mold 400. Specifically, after the pin part 200 is wrapped with a PET film 500, it is mounted on the clamping fixture 100. Then, the upper mold 300 is heated and driven by the hot press plate 600 to press it towards the lower mold 400, thereby realizing the hot pressing process of the pin part 200 on the clamping fixture 100. Optionally, an elastic layer 5 is also provided below the upper mold 300 to provide cushioning force and prevent damage to the pin part 200. Understandably, the clamping fixture 100 is designed with a base 1 to support the pin part 200 and the film. By clamping the pin part 200 in the clamping space 4, the pin part 200 is reliably fixed on the clamping fixture 100 to ensure the first-pass yield of hot pressing and the ease of disassembly and assembly.

[0074] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0075] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0076] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0077] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. A clamping fixture, characterized in that, include: The base (1) includes a support part (11) and a connecting part (12) connected to each other. The support part (11) is used to support the pin part (200), and the connecting part (12) has a movable notch (1211). A clamping member (2) is movably installed in the movable notch (1211), and a clamping space (4) is formed between the clamping member (2) and the bearing part (11); Linkage assembly (3), which connects the connecting part (12) and the clamping member (2) respectively, to control the clamping member (2) to move closer to or further away from the bearing part (11), thereby adjusting the size of the clamping space (4); The clamping fixture further includes an elastic layer (5), which is attached to the bearing portion (11). The elastic layer (5) is partially attached to the upper surface of the bearing part (11), and one end of the elastic layer (5) passes through the clamping space (4) and is attached to the lower surface of the bearing part (11). The clamping fixture also includes a fixing piece (6), which is located on the lower surface of the bearing part (11) and presses the elastic layer (5). The elastic layer (5) extends into the clamping space (4) and fits against the bearing part (11). When the pin part (200) extends into the clamping space (4), the clamping member (2) clamps the pin part (200), so that the pin part (200) abuts against the elastic layer (5) to achieve a pressure buffering effect and increase the clamping force of the clamping member (2) on the pin part (200).

2. The clamping fixture according to claim 1, characterized in that, The connecting part (12) includes two support columns (121), which are spaced apart from the bearing part (11) to form an installation space (7). Each support column (121) has an movable notch (1211). One end of the clamping member (2) is placed on one of the support columns (121), and the other end is placed on the other support column (121). The connecting rod assembly (3) is connected to one of the support columns (121).

3. The clamping fixture according to claim 2, characterized in that, The linkage assembly (3) includes: The first link (31) has one end rotatably connected to the support column (121) via a first fixed shaft (35); The second link (32) is movably connected at one end to the first link (31); The third link (33) has one end rotatably connected to the support column (121) via the second fixed shaft (36), and the third link (33) is movably connected to the end of the second link (32) away from the first link (31). The third link (33) has a sliding groove (331) that extends along the length of the third link (33). A connector (34) passes through the sliding groove (331) and is connected to the clamping member (2).

4. The clamping fixture according to claim 3, characterized in that, The support column (121) has a positioning groove (1213) for accommodating and limiting the second connecting rod (32). When the clamping member (2) approaches the bearing part (11), the second connecting rod (32) gradually abuts against the inner wall of the positioning groove (1213).

5. The clamping fixture according to any one of claims 1 to 4, characterized in that, The bearing part (11) is provided with a bearing surface, the bearing surface and the clamping member (2) are located on the top side of the base (1), and the connecting rod assembly (3) is connected to the connecting part (12).

6. The clamping fixture according to any one of claims 1 to 4, characterized in that, The surface of the bearing part (11) is recessed to form a plurality of receiving grooves (111), which are used to receive pin parts. The bottom wall of the receiving groove (111) is provided with a plurality of partition pieces (112) to divide the receiving groove (111) into a plurality of fixing grooves (113).

7. The clamping fixture according to any one of claims 1 to 4, characterized in that, The base (1) includes two connecting parts (12), which are respectively located at opposite ends of the supporting part (11); The clamping fixture includes two clamping members (2) and two connecting rod assemblies (3), one of the clamping members (2) and one of the connecting rod assemblies (3) is mounted on one end of the connecting part (12), and the other clamping member (2) and the other connecting rod assembly (3) are mounted on the other end of the connecting part (12).

8. A hot pressing device, characterized in that, The hot pressing equipment includes an upper mold, a lower mold, and a clamping fixture as described in any one of claims 1 to 7, wherein the clamping fixture is disposed between the upper mold and the lower mold.

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