Quick pre-clamping device for metal parts

Abstract

The utility model relates to metal spare clamping technical field, concretely to a kind of quick pre-clamping device of metal spare, including support frame, the outside of support frame is provided with first connecting seat, the inside sliding connection of first connecting seat has moving column, the inside of moving column is opened with empty slot, the inside of empty slot is provided with buffer assembly, by buffer assembly, avoid to cause damage to metal part in the process of applying self-down pressure to metal part by compacting disc, by the cooperation setting of compacting disc, second spring, connecting column, empty slot, first spring and moving disc, it is realized to avoid compacting head directly rigid contact component surface and cause indentation, scratch and other damage, it is favorable to keep the surface integrity and finish of component, reduce instantaneous impact force, effectively prevent component from deforming due to clamping force being too large, ensure its dimensional accuracy and shape accuracy.

Description

Technical Field

[0001] This utility model relates to the field of metal parts clamping technology, and in particular to a rapid pre-clamping device for metal parts. Background Technology

[0002] When machining metal parts, it is necessary to first clamp them using clamping fixtures to ensure stability during the machining process. Existing pre-clamping devices for metal parts mostly use simple mechanical structures to achieve the clamping function. For example, they utilize the cooperation of a screw and nut, and manually rotating the screw drives the clamping block to move, clamping the parts on one or both sides.

[0003] A quick pre-clamping device for metal parts, with authorized publication number CN221755397U, includes a clamping base. A fixed clamping block is installed on one side of the upper end of the clamping base, and a movable clamping block is installed on the other side of the upper end of the clamping base. An mounting seat is installed on one side of the clamping base, and an electric cylinder is installed on the mounting seat. A force sensor is installed at one end of the electric cylinder. Both the fixed clamping block and the movable clamping block include a fixed seat and an adjusting block. Multiple sets of adjusting columns are arranged on the inner surface of the adjusting block. The force sensor of this invention can monitor the clamping force in real time, thereby controlling the clamping position of the movable clamping block and regulating the clamping force to keep it within the optimal range. The adjusting block can automatically deflect according to the side shape of the metal parts, so that the clamping angle of the clamping surface adapts to the side shape of the metal parts. The clamping surface formed by the multiple sets of adjusting columns is adjustable. The overall device is suitable for clamping and fixing irregularly shaped metal parts.

[0004] Regarding the aforementioned technologies, existing rapid pre-clamping devices for metal parts suffer from a deficiency due to the lack of effective cushioning measures. When the pressure plate contacts the metal part, it often generates a large instantaneous impact force. This not only easily leaves indentations, scratches, and other damage on the surface of the metal part, but also causes irreversible deformation of thin-walled, easily deformable metal parts, making it difficult to guarantee the dimensional accuracy of the parts. Therefore, this utility model provides a rapid pre-clamping device for metal parts. Utility Model Content

[0005] The purpose of this application is to provide a quick pre-clamping device for metal parts to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] A quick pre-assembly clamping device for metal parts includes a support frame. A first connecting seat is provided on the outer side of the support frame. A movable column is slidably connected inside the first connecting seat. A slot is formed inside the movable column. A buffer assembly is provided inside the slot. The buffer assembly includes a first spring fixedly connected to the top of the slot. A movable disk is fixedly connected to the other end of the first spring. The movable disk slides inside the slot. A connecting column is fixedly connected to the bottom of the movable disk. A pressure plate is fixedly connected to the bottom of the connecting column. A second spring is sleeved on the outer side of the connecting column. One end of the second spring is fixedly connected to the bottom of the movable column, and the other end of the second spring is fixedly connected to the top of the pressure plate.

[0008] Preferably, one end of the support frame is fixedly connected to a placement platform, the placement platform is hollow, and a bidirectional threaded rod is rotatably connected inside the placement platform.

[0009] Preferably, a motor is provided on the outside of the placement platform, and the output end of the motor is fixedly connected to one end of the bidirectional threaded rod.

[0010] Preferably, both sides of the bidirectional threaded rod are threadedly connected to movable blocks, the movable blocks all penetrate the placement platform, and the side walls of the movable blocks are fixedly connected to clamping plates.

[0011] Preferably, one end of the movable column is fixedly connected to a limiting plate, a first connecting rod is rotatably connected to the side wall of the first connecting seat, one end of the first connecting rod is rotatably connected to a linkage seat, and a push rod is fixedly connected to the side wall of the linkage seat.

[0012] Preferably, a second connecting rod is fixedly connected to the side wall of the linkage seat, and one end of the second connecting rod is rotatably connected to the side wall of the moving column.

[0013] Preferably, a second connecting seat is fixedly connected to the side wall of the support frame, the movable column passes through the second connecting seat, and the movable column slides inside the second connecting seat.

[0014] In summary, the technical effects and advantages of this utility model are as follows:

[0015] The buffer assembly prevents damage to the metal parts during the top-down clamping process of the clamping plate. The coordinated arrangement of the clamping plate, second spring, connecting column, slot, first spring and moving plate avoids direct rigid contact between the clamping head and the surface of the parts, thus preventing damage such as indentations and scratches. This helps maintain the surface integrity and smoothness of the parts, reduces instantaneous impact force, and effectively prevents the parts from deforming due to excessive clamping force, ensuring their dimensional and shape accuracy. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a first-view axial side view of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the mobile disk of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the placement platform of this utility model;

[0020] Figure 4 This is a schematic diagram of the linkage seat of this utility model.

[0021] In the diagram: 1. Support frame; 2. Limiting plate; 3. First connecting seat; 4. Push rod; 5. Motor; 6. Placement platform; 7. Moving block; 8. Clamping plate; 9. Second connecting seat; 10. First spring; 11. Empty slot; 12. Moving plate; 13. Second spring; 14. Connecting column; 15. Pressing plate; 16. Moving column; 17. Bidirectional threaded rod; 18. First connecting rod; 19. Linkage seat; 20. Second connecting rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example 1: Reference Figure 1-4The device shown is a rapid pre-assembly clamping device for metal parts, including a support frame 1. The support frame 1 serves as the basic support structure for the entire device, providing a platform for the installation and fixing of other components and ensuring the overall stability of the device. A first connecting seat 3 is provided on the outer side of the support frame 1. The first connecting seat 3 is used to guide and limit the moving column 16, enabling the moving column 16 to slide stably in a specific direction, ensuring the accuracy and reliability of the movement of the moving column 16. The moving column 16 is slidably connected inside the first connecting seat 3. The moving column 16 is the key component for realizing the top-down clamping action of the metal part. Its up-and-down movement drives the clamping plate 15 connected to the bottom to clamp the metal part. The moving column 16 has a slot 11 inside for the clamping operation of the components. The slot 11 provides installation space for the buffer assembly, allowing it to function. The buffer assembly is installed inside the slot 11. The buffer assembly acts as a buffer when the clamping plate 15 comes into contact with the metal component, preventing damage to the metal component from the impact force generated by rigid contact. The buffer assembly includes a first spring 10 fixedly connected to the top of the slot 11. The first spring 10 is compressed during the pressing of the clamping plate 15, absorbing the impact force through its own elastic deformation, slowing down the pressing speed, and dispersing the force. The other end of the first spring 10 is fixedly connected to the moving plate. 12. The movable disk 12 slides within the empty groove 11, transmitting the force of the first spring 10 to the connecting post 14. During sliding, it engages with the inner wall of the empty groove 11 to ensure the stability of force transmission. This sliding connection allows the movable disk 12 to move flexibly with the extension and retraction of the first spring 10, achieving force buffering and adjustment. The bottom of the movable disk 12 is fixedly connected to the connecting post 14, which connects the movable disk 12 and the pressure plate 15, transmitting the buffering force generated by the buffer assembly to the pressure plate 15. The bottom of the connecting post 14 is fixedly connected to the pressure plate 15. The pressure plate 15 directly contacts the metal parts and applies a clamping force to them, achieving a top-down clamping and fixing effect. A second spring 13 is sleeved on the outside of the connecting column 14. The second spring 13 undergoes compression deformation when the pressure plate 15 contacts the metal parts, further buffering the downward pressing process. It works in conjunction with the first spring 10 to enhance the buffering effect. One end of the second spring 13 is fixedly connected to the bottom of the moving column 16, and the other end of the second spring 13 is fixedly connected to the top of the pressure plate 15. This connection method allows the second spring 13 to effectively limit the downward pressing stroke of the pressure plate 15, while generating a reaction force when pressed, thus buffering and protecting the metal parts.

[0025] Example 2: Reference Figure 1-4Based on the same concept as Embodiment 1 above, this embodiment further proposes that one end of the support frame 1 is fixedly connected to a placement platform 6. The placement platform 6 is used to support the metal parts to be clamped, providing a placement plane for the metal parts and ensuring that the metal parts have a stable support foundation during clamping. The placement platform 6 is hollow, which provides space for the installation and rotation of the bidirectional threaded rod 17, allowing the bidirectional threaded rod 17 to rotate inside and drive other parts to move. The bidirectional threaded rod 17 is rotatably connected inside the placement platform 6. Through its own rotation, the bidirectional threaded rod 17 drives the moving blocks 7 on both sides to move in opposite directions or away from each other using the thread transmission principle, realizing the horizontal clamping operation of the metal parts. An electric... Motor 5 serves as the power source, providing power for the rotation of the bidirectional threaded rod 17. The forward and reverse rotation of motor 5 controls the rotation direction of the bidirectional threaded rod 17, thereby controlling the movement direction of the moving block 7. The output end of motor 5 is fixedly connected to one end of the bidirectional threaded rod 17, ensuring that the power of motor 5 can be stably transmitted to the bidirectional threaded rod 17, causing the bidirectional threaded rod 17 to rotate according to the drive of motor 5. Moving blocks 7 are threadedly connected to both sides of the bidirectional threaded rod 17. Driven by the bidirectional threaded rod 17, the moving blocks 7 move linearly along the guide structure of the placement platform 6, serving as the direct actuator for horizontal clamping of metal parts. The moving blocks 7 penetrate the placement platform 6; this through-hole design allows the moving blocks 7 to move stably under the guidance of the placement platform 6. The movement is transmitted to the clamping plate 8 on the outside of the placement platform 6. The side walls of the moving block 7 are all fixedly connected to the clamping plate 8. The clamping plate 8 directly contacts the side of the metal part. Through the opposite movement of the two clamping plates 8, the metal part is clamped and fixed at both ends in the horizontal direction, ensuring that the position of the metal part is fixed in the horizontal direction. One end of the moving column 16 is fixedly connected to the limit plate 2. The limit plate 2 is used to limit the movement range of the moving column 16, prevent the moving column 16 from leaving the predetermined track during the movement, and ensure the safety and accuracy of the movement of the moving column 16. The side wall 3 of the first connecting seat is rotatably connected to the first connecting rod 18. Under the push of the push rod 4, the first connecting rod 18 transmits force and movement through rotation, converting the linear movement of the push rod 4 into a moving rod. The linear motion of the moving column 16 is achieved by rotatably connecting one end of the first connecting rod 18 to a linkage seat 19. The linkage seat 19, as an intermediate component connecting the first connecting rod 18, the push rod 4, and the second connecting rod 20, acts as a pivot for force transmission and motion conversion, enabling coordinated work among the components. A push rod 4 is fixedly connected to the side wall of the linkage seat 19. The push rod 4 is manually operated; pushing the push rod 4 moves the linkage seat 19, which in turn drives the first connecting rod 18 and the second connecting rod 20, thus moving the moving column 16 downwards. A second connecting rod 20 is also fixedly connected to the side wall of the linkage seat 19. The second connecting rod 20 cooperates with the first connecting rod 18 to transmit the motion of the linkage seat 19 to the moving column 16, ensuring that the moving column 16 moves downwards along a predetermined trajectory.To achieve top-down clamping of the metal component, one end of the second connecting rod 20 is rotatably connected to the side wall of the moving column 16. This rotatable connection allows the second connecting rod 20 to rotate flexibly during the transmission of motion and force, adapting to the movement requirements of the moving column 16. A second connecting seat 9 is fixedly connected to the side wall of the support frame 1. The second connecting seat 9 provides auxiliary support and guidance for the moving column 16, cooperating with the first connecting seat 3 to maintain stability during the up-and-down movement of the moving column 16, improving movement accuracy. The moving column 16 passes through the second connecting seat 9 and slides inside the second connecting seat 9. Through this sliding connection, the second connecting seat 9 restricts the direction of movement of the moving column 16, ensuring that the moving column 16 can only move up and down vertically, achieving precise clamping of the metal component.

[0026] The working principle of this utility model is as follows: First, place the metal part to be clamped on the placement platform 6, start the motor 5, and the motor 5 rotates the bidirectional threaded rod 17, so that the moving blocks 7 on both sides drive the clamping plate 8 to clamp and fix the metal part horizontally at both ends. Then, manually push the push rod 4 upward, and through the cooperation of the first connecting rod 18 and the second connecting rod 20, the moving column 16 moves downward, and the pressing plate 15 presses and fixes the metal part from top to bottom. At the same time as the pressing plate 15 contacts the metal part, the second spring 13 is compressed and deformed to buffer the downward pressing process. At the same time, the connecting column 14 squeezes the first spring 10 through the moving plate 12 to disperse the force during the buffering process and avoid damage to the metal part.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rapid pre-clamping device for metal parts, comprising a support frame (1), characterized in that: The support frame (1) is provided with a first connecting seat (3) on its outer side. A movable column (16) is slidably connected inside the first connecting seat (3). A slot (11) is opened inside the movable column (16). A buffer component is provided inside the slot (11). The buffer assembly includes a first spring (10) fixedly connected to the top of the inner cavity (11), and a movable disk (12) fixedly connected to the other end of the first spring (10). The movable disk (12) slides inside the cavity (11). A connecting post (14) is fixedly connected to the bottom of the movable disk (12). A pressing disk (15) is fixedly connected to the bottom of the connecting post (14). A second spring (13) is sleeved on the outside of the connecting post (14). One end of the second spring (13) is fixedly connected to the bottom of the movable post (16), and the other end of the second spring (13) is fixedly connected to the top of the pressing disk (15).

2. The rapid pre-clamping device for metal parts according to claim 1, characterized in that: One end of the support frame (1) is fixedly connected to a placement platform (6), which is hollow, and a bidirectional threaded rod (17) is rotatably connected inside the placement platform (6).

3. The rapid pre-clamping device for metal parts according to claim 2, characterized in that: A motor (5) is provided on the outside of the placement platform (6), and the output end of the motor (5) is fixedly connected to one end of the bidirectional threaded rod (17).

4. The rapid pre-clamping device for metal parts according to claim 3, characterized in that: The two-way threaded rod (17) has moving blocks (7) threadedly connected to both sides. The moving blocks (7) all pass through the placement platform (6). The side walls of the moving blocks (7) are fixedly connected to clamping plates (8).

5. The rapid pre-clamping device for metal parts according to claim 4, characterized in that: One end of the movable column (16) is fixedly connected to a limiting plate (2), the side wall of the first connecting seat (3) is rotatably connected to a first connecting rod (18), one end of the first connecting rod (18) is rotatably connected to a linkage seat (19), and the side wall of the linkage seat (19) is fixedly connected to a push rod (4).

6. The rapid pre-clamping device for metal parts according to claim 5, characterized in that: The side wall of the linkage seat (19) is fixedly connected to a second connecting rod (20), and one end of the second connecting rod (20) is rotatably connected to the side wall of the moving column (16).

7. The rapid pre-clamping device for metal parts according to claim 1, characterized in that: The support frame (1) is fixedly connected to a second connecting seat (9) on its side wall. The movable column (16) passes through the second connecting seat (9) and slides inside the second connecting seat (9).

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