Automatic rapid clamping device

Abstract

The utility model relates to the field of mechanical clamping devices, in particular to an automatic rapid clamping device. Comprising a base arranged on a mounting platform, a shell is arranged on the base, the base and the shell define a containing cavity, a through hole is formed in the shell, a clamping block is arranged on the base, an elastic piece is arranged between the clamping block and the cavity wall of the containing cavity, and the clamping block is matched with the cavity wall of the containing cavity to extrude or release the elastic piece, so that the clamping block retracts into or extends out of the containing cavity from the through hole. A clamping gap is formed between the clamping block and the mounting platform and used for containing, clamping and fixing the printing platform. According to the printing platform clamping device, rapid and stable clamping of the printing platform is achieved, and the working efficiency and stability are improved.

Description

Technical Field

[0001] This application relates to the field of mechanical clamping devices, and in particular to an automatic rapid clamping device. Background Technology

[0002] With the rapid development of 3D printing technology, its applications in manufacturing, medical, construction, and other fields are becoming increasingly widespread. To meet the needs of different application scenarios, improving the speed and accuracy of 3D printing has become a key research focus. However, in actual production, frequent changes to the printing platform are a common operation, which not only consumes a significant amount of time and manpower but can also lead to inaccurate positioning, affecting the quality and consistency of the final product. This problem is particularly pronounced in large-scale production and multi-batch operations, severely impacting production efficiency and cost control.

[0003] In existing technologies, there are two main methods for fixing 3D printing platforms: one is physical fixing using screws or other tools. While this method is simple and reliable, it requires manually tightening or loosening screws each time the platform is changed, which is time-consuming and cannot achieve rapid replacement. The second method is magnetic fixing. This method is more convenient, but for large or heavy platforms, insufficient magnetic force can lead to unstable fixing, and the platform is prone to wear after prolonged use, reducing the lifespan of the equipment. Furthermore, neither of these methods effectively solves the problem of errors introduced by manual operation, further affecting the quality and stability of printing.

[0004] The aforementioned existing technologies generally suffer from problems such as cumbersome operation, poor fixation effect, and easy damage when facing mass production and high precision requirements. There is an urgent need for an automated solution that can quickly and stably fix the printing platform. Utility Model Content

[0005] The purpose of this application is to provide an automatic and rapid clamping device.

[0006] The above-mentioned technical objective of this application is achieved through the following technical solution: an automatic quick clamping device, including a base disposed on an installation platform, a housing disposed on the base, the base and the housing together forming a receiving cavity, the housing being provided with a through hole, a clamping block disposed on the base, an elastic element being disposed between the clamping block and the cavity wall of the receiving cavity, the clamping block cooperating with the cavity wall of the receiving cavity to squeeze or release the elastic element, the clamping block retracting or extending from the receiving cavity through the through hole, a clamping gap being formed between the clamping block and the installation platform for accommodating a printing platform, the clamping block cooperating with the installation platform to clamp and fix the printing platform.

[0007] By adopting the above technical solutions, automatic and rapid clamping of the printing platform is achieved, greatly shortening the time required to change the printing platform and improving the overall production efficiency of 3D printing equipment. It is especially suitable for large-scale production and multi-batch operation scenarios. The use of elastic components to provide stable clamping force ensures the stability of the platform during the printing process, effectively reducing printing errors and improving printing accuracy and product quality consistency. It avoids the cumbersome operation of existing screw fixing methods and the problems of poor fixing effect and easy wear of magnetic fixing methods for large and heavy platforms, thus extending the service life of the equipment. It reduces manual operation links and labor intensity, reduces human operation errors, improves working comfort and operational accuracy, and at the same time reduces equipment failure rate and overall operating costs.

[0008] Optionally, the clamping block is provided with a guide surface.

[0009] By adopting the above technical solution, the presence of the guide surface allows the printing platform to make smoother contact with the clamping block when placed into the clamping device, providing excellent guidance and effectively reducing resistance during the placement process. This avoids potential damage to the equipment due to jamming or forced placement. It also improves operational convenience, reduces the difficulty for operators, and further accelerates the installation speed of the printing platform. Combined with the overall device, it enables a more efficient automated operation process, improving the overall working efficiency of the 3D printing equipment.

[0010] Optionally, the clamping block is provided with a guide post, and the elastic element is fitted with the guide post at one end near the clamping block.

[0011] By adopting the above technical solution, the guide post provides a precise guiding path for the extension and retraction of the elastic element, ensuring that the elastic element maintains a stable direction during compression and rebound, effectively preventing abnormal deformation such as twisting and displacement caused by uneven force, thereby ensuring the accuracy and stability of the clamping block's movement. This allows the clamping block to retract or extend from the receiving cavity more reliably from the through hole, thus stably clamping and fixing the printing platform in conjunction with the mounting platform, significantly improving the overall reliability and clamping accuracy of the clamping device.

[0012] Optionally, the elastic element may be provided in multiple forms.

[0013] By adopting the above technical solution, the clamping force is enhanced, enabling the clamping block to hold the printing platform more securely. This effectively prevents the platform from loosening or shifting due to vibration or other factors during printing, greatly improving the stability of the printing platform and thus enhancing printing accuracy and product quality. The combined action of multiple elastic components distributes the stress during clamping, reducing the load on individual elastic components and minimizing the risk of fatigue damage due to excessive force. This extends the service life of the elastic components and reduces equipment maintenance frequency and costs.

[0014] Optionally, the base is provided with a first limiting insertion hole, and the housing is provided with a second limiting insertion hole. The first limiting insertion hole and the second limiting insertion hole are used to insert a limiting pin to restrict the clamping block from retracting into the receiving cavity.

[0015] By employing the above technical solution, a limiting pin is inserted after the printing platform is installed, preventing it from being directly removed. This enhances the stability of the printing platform during printing, effectively preventing the clamping block from extending or retracting due to accidental collisions, vibrations, or other external factors. It ensures that the printing platform maintains precise positioning throughout the entire printing operation, significantly improving printing accuracy and guaranteeing high-quality output. The limiting measure prevents the printing platform from accidentally detaching during printing due to misoperation, providing reliable safety for the printing operation, reducing the risk of equipment damage and printing failures, and minimizing economic losses caused by equipment malfunctions and material waste.

[0016] Optionally, the clamping block is provided with a clearance groove and a mounting groove. A rotating block is provided in the mounting groove. The rotating block is provided with a guide surface and a rotating shaft. The housing is provided with a through hole. The rotating shaft passes through the through hole. When the rotating shaft is rotated, the rotating component drives the clamping block to move into the receiving cavity. The clamping block avoids the rotating block through the clearance groove.

[0017] By adopting the above technical solution, when encountering special situations (such as slight deviations in the installation of the printing platform or the need for fine-tuning of the clamping force), rotating the shaft causes the rotating block to rotate within the mounting slot. Its guide surface interacts with the slot wall, moving the clamping block into the receiving cavity, facilitating the removal or installation of the printing platform and improving the device's adaptability and flexibility to different working conditions. Simultaneously, the clearance groove on the clamping block cleverly solves the spatial interference problem during the rotating block's movement, ensuring the smoothness and reliability of the entire mechanism's movement. This design not only enhances the device's ability to cope with complex operating scenarios but also improves the convenience and accuracy of printing platform installation and adjustment.

[0018] Optionally, a handle is provided at the end of the rotating shaft away from the rotating block.

[0019] By adopting the above technical solution, the handle provides the operator with a convenient part to apply force, making the operation of rotating the shaft easier and more convenient. The operator can more accurately control the force and angle of rotation, thereby more effectively adjusting the position of the clamping block and achieving fine adjustment of the clamping state of the printing platform.

[0020] Optionally, a spring is fitted onto the shaft.

[0021] By adopting the above technical solution, the spring plays a buffering and resetting role in this structure. When the rotating shaft is rotated to adjust the position of the clamping block, the spring can absorb part of the impact force generated by the rotation, avoiding damage to the internal structure of the device caused by sudden force or excessive rotation. This effectively protects the rotating block, clamping block, and related components, extending the service life of the equipment. Simultaneously, after adjustment, the spring, with its own elastic restoring force, causes the rotating shaft and rotating block to return to their initial position or remain in the set position, ensuring the stability and reliability of the clamping state. This reduces the possibility of the clamping block's position changing due to external interference or vibration, further enhancing the clamping effect on the printing platform and improving the stability and accuracy during the printing process.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. Significantly reduces the time required to change printing platforms, improving the overall efficiency of 3D printing. The automated clamping mechanism eliminates the need for manual tightening or loosening of screws, enabling rapid replacement.

[0024] 2. It eliminates human error and enhances the stability of the printing platform. The elastic element design between the clamping block and the cavity wall ensures a uniform distribution of clamping force, guaranteeing that the printing platform remains stable throughout the printing process;

[0025] 3. Improved equipment durability and reliability. The design of the guide surface and guide pillars reduces friction between mechanical parts, extending the equipment's service life. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of an automatic rapid clamping device;

[0027] Figure 2 This is a cross-sectional view of an automatic quick-clamping device;

[0028] Figure 3 This is a schematic diagram of an automatic rapid clamping device.

[0029] Figure 4 This is a schematic diagram of the clamping block structure;

[0030] Figure 5 This is a schematic diagram of the state of the rotating block.

[0031] Figure Labels

[0032] 1. Mounting platform; 2. Base; 3. Housing; 4. Receiving cavity; 5. Through hole; 6. Clamping block; 7. Elastic element; 8. Clamping gap; 9. Printing platform; 10. Guide surface; 11. Guide post; 12. First limit insertion hole; 13. Second limit insertion hole; 14. Clearance groove; 15. Mounting groove; 16. Rotating block; 17. Guide curved surface; 18. Rotating shaft; 19. Through hole; 20. Handle. Detailed Implementation

[0033] The present application will be further described in detail below with reference to the accompanying drawings.

[0034] Example 1

[0035] In this embodiment, refer to Figure 1-3 An automatic quick clamping device includes a base 2 mounted on a mounting platform 1, a housing 3 on the base 2, and a receiving cavity 4 formed by the base 2 and housing 3. The housing 3 has a through hole 5. A clamping block 6 is mounted on the base 2. An elastic element 7 is provided between the clamping block 6 and the cavity wall of the receiving cavity 4. By the clamping block 6 cooperating with the cavity wall of the receiving cavity 4 to compress or release the elastic element 7, the clamping block 6 retracts from or extends from the receiving cavity 4 through the through hole 5. A clamping gap 8 is formed between the clamping block 6 and the mounting platform 1 to accommodate a printing platform 9. The clamping block 6 cooperates with the mounting platform 1 to clamp and fix the printing platform 9. This design effectively solves the problem of time-consuming and laborious manual replacement of the printing platform 9 in the prior art, achieving rapid and stable platform fixation.

[0036] Specifically, the base 2 can be made of metal materials, such as aluminum alloy or steel, to ensure its structural strength and durability. The housing 3 can also be made of metal materials, such as stainless steel or aluminum-magnesium alloy, which have good corrosion resistance and lightweight characteristics. The base 2 and housing 3 can be fixed together by bolts or welding to ensure a tight fit between them. The housing 3 is provided with a through hole 5, through which the clamping block 6 can enter and exit the receiving cavity 4. The diameter of this through hole 5 is slightly larger than the maximum width of the clamping block 6 to allow the clamping block 6 to move freely without obstruction. In addition, the edges of the through hole 5 can be chamfered to reduce friction and extend service life.

[0037] Reference Figure 4 The clamping block 6 can be made of high-strength plastic or metal materials, such as nylon or cast iron, possessing a certain degree of wear resistance and pressure resistance. The clamping block 6 is provided with a guide surface 10, which can be a smooth inclined surface, allowing the printing platform 9 to be placed on it and smoothly guide the clamping block 6 to move backward. Additionally, a guide post 11 can be provided on the clamping block 6, with one end of the elastic element 7 near the clamping block 6 fitted onto the guide post 11. This increases the stability of the system and prevents the clamping block 6 from shifting during movement.

[0038] The elastic element 7 can be a spring or other form of elastic element, such as a rubber pad or air bladder. In this case, a helical spring can be selected as the elastic element 7, with its two ends contacting the clamping block 6 and the cavity wall of the receiving cavity 4, respectively. When the clamping block 6 is subjected to pressure, the spring is compressed; when the pressure is removed, the spring returns to its original shape, pushing the clamping block 6 to reset. To enhance the reliability of the system, multiple elastic elements 7 can be provided between the clamping block 6 and the cavity wall of the receiving cavity 4, such as two helical springs evenly distributed at both ends of the clamping block 6, to ensure the stable operation of the entire system.

[0039] Reference Figure 1 The clamping gap 8 formed between the clamping block 6 and the mounting platform 1 can be adjusted in size according to actual needs, generally ranging from a few millimeters to more than ten millimeters, in order to accommodate printing platforms 9 of different thicknesses. When the printing platform 9 is placed into the clamping gap 8, the clamping block 6 will move forward under the action of the elastic element 7, tightly gripping the edge of the printing platform 9, ensuring that it remains stable throughout the printing process.

[0040] Reference Figure 1 and Figure 4 The base 2 is provided with a first limiting insertion hole 12, and the housing 3 is provided with a second limiting insertion hole 13. These two limiting insertion holes are used to insert limiting pins to restrict the clamping block 6 from retracting into the receiving cavity 4. This design can lock the position of the clamping block 6 in certain specific situations, such as locking the installation of the printing platform 9, to prevent the printing platform 9 from falling off due to the extension and retraction of the clamping block 6.

[0041] The implementation principle of this embodiment is as follows: This automatic rapid clamping device achieves rapid and stable fixation of the 3D printing platform 9 through the unique cooperative design of the clamping block 6 and the elastic element 7. When the printing platform 9 is placed on the clamping block 6, due to gravity or pressure, the clamping block 6 will move backward (towards the receiving cavity 4), making room for the printing platform 9 to be placed on the mounting platform 1; once the platform is fully in place, the elastic element 7 pushes the clamping block 6 to reset, cooperating with the mounting platform 1 to firmly fix the printing platform 9. This automated mechanism not only significantly shortens the time required to change the printing platform 9, but also eliminates human operation errors, improving printing quality and production efficiency. In addition, the multi-point support and multi-spring design further enhance the stability and reliability of the system, making it suitable for various complex working environments.

[0042] Example 2

[0043] Reference Figure 4 and Figure 5The difference between this embodiment and the previous embodiment is that an avoidance groove 14 and a mounting groove 15 are added to the clamping block 6. A rotating block 16 is provided in the mounting groove 15, and a guide curved surface 17 is provided on the rotating block 16. A rotating shaft 18 is provided on the rotating block 16, and a through hole 19 is provided on the housing 3. The rotating shaft 18 passes through the through hole 19. When the rotating shaft 18 is rotated, the rotating component drives the clamping block 6 to move into the receiving cavity 4. The clamping block 6 avoids the rotating block 16 through the avoidance groove 14. This design further improves the flexibility and adjustability of the clamping device.

[0044] Specifically, the clearance groove 14 can be a rectangular recess located in the center of the clamping block 6, used to clear the rotating block 16 when the clamping block 6 moves. The mounting groove 15 is used to mount the rotating block 16. The rotating block 16 can be made of rigid plastic or metal materials, such as polyoxymethylene or brass, possessing high strength and toughness. The guide surface 17 can be an arc surface, allowing the rotating block 16 to smoothly guide the movement of the clamping block 6 during rotation.

[0045] The pivot 18 can be a slender metal rod, such as stainless steel or carbon fiber, possessing high rigidity and bending resistance. One end of the pivot 18 is fixed to the rotating block 16, and the other end passes through the through hole 19 on the housing 3 and extends to the outside. A handle 20 is provided at the end of the pivot 18 away from the rotating block 16, allowing the operator to control the movement of the clamping block 6 by rotating the handle 20. To increase ease of operation, the handle 20 can be engraved with anti-slip textures or coated with an anti-slip coating.

[0046] A spring can also be fitted onto the rotating shaft 18, which acts as a buffer and reset mechanism. When the rotating shaft 18 is rotated, the spring is stretched or compressed, storing energy; when rotation stops, the spring releases energy, helping the clamping block 6 to reset. This design reduces the amount of force required and improves work efficiency.

[0047] The implementation principle of this embodiment is as follows: By adding a rotating block 16 and a rotating shaft 18, the automatic quick-clamping device further improves the flexibility and adjustability of the clamping mechanism. When it is necessary to release the clamping state, simply turn the handle 20 to easily retract the clamping block 6 back into the receiving cavity 4, facilitating the removal or replacement of the printing platform 9. This flexible operation method can not only cope with complex usage scenarios, but also greatly reduce the burden on operators and improve the overall work efficiency and safety.

[0048] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic rapid clamping device, characterized in that, The device includes a base (2) mounted on a mounting platform (1), a housing (3) on the base (2), and a receiving cavity (4) formed by the base (2) and the housing (3). A through hole (5) is provided on the housing (3). A clamping block (6) is provided on the base (2). An elastic element (7) is provided between the clamping block (6) and the cavity wall of the receiving cavity (4). The clamping block (6) cooperates with the cavity wall of the receiving cavity (4) to squeeze or release the elastic element (7). The clamping block (6) retracts or extends from the receiving cavity (4) through the through hole (5). A clamping gap (8) is formed between the clamping block (6) and the mounting platform (1) to accommodate a printing platform (9). The clamping block (6) cooperates with the mounting platform (1) to clamp and fix the printing platform (9).

2. The automatic rapid clamping device according to claim 1, characterized in that, The clamping block (6) is provided with a guide surface (10).

3. The automatic rapid clamping device according to claim 1, characterized in that, The clamping block (6) is provided with a guide post (11), and the elastic member (7) is fitted with the guide post (11) at one end near the clamping block (6).

4. The automatic rapid clamping device according to claim 1, characterized in that, The elastic element (7) is provided in several parts.

5. The automatic rapid clamping device according to claim 1, characterized in that, The base (2) is provided with a first limiting insertion hole (12), and the housing (3) is provided with a second limiting insertion hole (13). The first limiting insertion hole (12) and the second limiting insertion hole (13) are used to insert a limiting pin to restrict the clamping block (6) from retracting into the receiving cavity (4).

6. The automatic rapid clamping device according to claim 1, characterized in that, The clamping block (6) is provided with a clearance groove (14) and a mounting groove (15). A rotating block (16) is provided in the mounting groove (15). A guide surface (17) is provided on the rotating block (16). A rotating shaft (18) is provided on the rotating block (16). A through hole (19) is provided on the housing (3). The rotating shaft (18) passes through the through hole (19). When the rotating shaft (18) is rotated, the rotating component drives the clamping block (6) to move into the receiving cavity (4). The clamping block (6) avoids the rotating block (16) through the clearance groove (14).

7. An automatic rapid clamping device according to claim 6, characterized in that, A handle (20) is provided at the end of the rotating shaft (18) away from the rotating block (16).

8. An automatic rapid clamping device according to claim 6, characterized in that, A spring is fitted onto the rotating shaft (18).

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