Novel material clamping device

By designing a structure with adjustable fixed and movable clamping blocks, the problem that existing clamping devices cannot simultaneously clamp large and small area boards is solved, thus improving the space utilization and processing efficiency of woodworking equipment.

CN224074559UActive Publication Date: 2026-04-03FOSHAN SHUNDE WEIZHICHENG CNC INTELLIGENT TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-26
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

The existing clamping device has a fixed clamping block structure, which means that the worktable cannot simultaneously meet the clamping needs of large and small area boards of different sizes. In addition, the feeding device needs to transport materials over a long distance, resulting in a waste of space and energy.

Method used

The structure employs a liftable fixed clamping block and a movable clamping block, combined with a support spring and a guide slope, to achieve automatic descent and reset of the movable clamping block when the plate passes through. The design of the guide shaft and drive belt allows multiple clamping components to be flexibly arranged on the worktable to adapt to the processing needs of plates of different sizes.

Benefits of technology

It enables the simultaneous processing of both large and small-area boards on the workbench, improving space utilization and processing efficiency, and avoiding interference when boards pass through.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a novel material clamping device, which belongs to the field of woodworking processing equipment and comprises a plurality of groups of clamping components, each clamping component comprises a fixed clamping seat and a movable clamping seat, each fixed clamping seat comprises a telescopic cylinder and a fixed clamping block, each movable clamping seat comprises a movable sliding block, and a movable clamping block is rotatably mounted at the top of each movable sliding block. The movable sliding block is further provided with a supporting spring used for supporting the movable clamping block, one side of the movable clamping block is a pressure guiding inclined face used for making contact with the movable clamping block and pressing the movable clamping block to descend, the fixed clamping block can ascend and descend to avoid passing of plates so as to avoid influences, and the movable clamping block is installed on the movable clamping base in an elastic up-and-down swinging mode. The movable clamping blocks can automatically descend and reset when the plates pass through the movable clamping blocks under the action of the pressure guide slopes, passing of the plates can be prevented from being affected, the multiple clamping assemblies can be arranged, the machining and clamping requirements for the large-area plates are met, the space of the workbench can be fully utilized when the small-area plates are machined, and the machining efficiency is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of woodworking equipment, and in particular relates to a novel clamping device. Background Technology

[0002] Automatic woodworking drilling equipment features clamping devices on both sides of the worktable to hold and secure the wood panels from the side. However, existing clamping devices have fixed clamping blocks, which, while performing their clamping function, inevitably obstruct the passage of the wood panels. This limits the number of clamping components that can be installed on the worktable. When the worktable is small, it cannot handle large areas of wood panels for drilling. While larger worktables can handle smaller areas, they don't fully utilize the worktable area, and the feeding device requires a long transport distance, resulting in a waste of space and energy. Summary of the Invention

[0003] Based on the aforementioned problems in the existing technology, this utility model provides a novel clamping device, which includes several sets of clamping components. The clamping components include a fixed clamping seat and a movable clamping seat. The fixed clamping seat includes a telescopic cylinder and a fixed clamping block that is driven and lifted by the telescopic cylinder. The movable clamping seat includes a movable slider that is driven and connected to a driving structure. The driving structure drives the movable clamping seat to move closer to or away from the fixed clamping seat. The movable clamping block is mounted on the top of the movable slider and rotates up and down. A support spring for supporting the movable clamping block is installed on one side of the movable clamping block on the top of the movable slider. One side of the movable clamping block is a clamping surface, and the other side of the movable clamping block is a pressure guide slope for contacting and pressing the movable clamping block to descend.

[0004] The movable slider has a limit block at its top and a limit groove at its bottom that matches and is nested with the limit block. One end of the movable clamping block is fitted over the limit block and is mounted to the limit block by rotating through a pivot. The support spring is mounted on the top of the limit block and supports the other end of the movable clamping block away from the limit block.

[0005] The novel clamping device further includes a mounting base, on which several guide optical shafts are fixedly mounted horizontally. The movable slider is slidably mounted on the guide optical shafts. Pulleys are rotatably mounted on one side of both ends of the guide optical shafts on the mounting base. The same transmission belt is meshed between the two pulleys. The transmission belt is parallel to the guide optical shafts. One end of the transmission belt is fixedly connected to the movable slider. One of the pulleys is drive-connected to a clamping motor fixedly mounted on the mounting base.

[0006] The mounting base also includes a position adjustment assembly, which comprises an adjustment slide rail and an adjustment motor fixedly mounted to the mounting base. The fixed clamp also includes an adjustment slide block slidably mounted to the adjustment slide rail via a slider. The telescopic cylinder is fixedly mounted to the adjustment slide block, with its telescopic end extending downwards and passing through the adjustment slide block. A connecting block is fixedly mounted on the telescopic end of the telescopic cylinder, and a stabilizing shaft is fixedly mounted on the upward-extending connecting block. A stabilizing block that matches and slides with the stabilizing shaft is fixedly mounted on the adjustment slide block, and the fixed clamp block is fixedly mounted after the stabilizing shaft passes through the stabilizing block. The power shaft of the adjustment motor is driven to an adjustment lead screw, which is rotatably connected to the mounting base. A lead screw sleeve is installed on the adjustment lead screw via a threaded connection, and the lead screw sleeve is fixedly connected to the adjustment slide block of one set of clamping assemblies. The adjustment slide blocks of adjacent clamping assemblies are fixedly connected by a limiting rod.

[0007] The novel clamping device further includes a lifting assembly, which includes several connecting seats. A lifting electric telescopic rod is fixedly installed on the connecting seats. The telescopic end of the lifting electric telescopic rod is fixedly connected to the mounting seat. The mounting seat is also fixedly installed with a vertically extending lifting guide column. A lifting sleeve that slides in cooperation with the lifting guide column is fixedly installed on the connecting seats.

[0008] The telescopic end of the lifting electric telescopic rod is provided with synchronous teeth, and synchronous gears are installed through the meshing of the synchronous teeth. The synchronous gears of all connecting seats are fixedly installed on the same synchronous shaft.

[0009] The beneficial effects of this utility model are as follows: the fixed clamping block is driven to rise and fall by a telescopic cylinder, which can avoid the passage of the plate by raising and lowering to avoid causing any impact. At the same time, the movable clamping block is installed on the movable clamping seat by elastic up and down swinging with the help of the support spring. Combined with the action of the guide pressure inclined surface, the movable clamping block can automatically descend and reset when the plate passes through, which can also avoid affecting the passage of the plate. Thus, multiple sets of clamping components can be set on the worktable, which can not only meet the processing and clamping needs of large-area plates, but also perform multi-station simultaneous processing when processing small-area plates, thereby improving the space utilization and processing efficiency of the worktable. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of a novel clamping device.

[0011] Figure 2 yes Figure 1 Enlarged view of point A.

[0012] Figure 3 This is a schematic diagram of the three-dimensional structure of the movable clamp and the guide optical axis.

[0013] Figure 4 yes Figure 3 Enlarged view of point B.

[0014] Figure 5 This is a three-dimensional structural diagram of the position adjustment component.

[0015] Figure 6 yes Figure 5 Enlarged view of point C.

[0016] Figure 7 This is a three-dimensional structural diagram of the position adjustment component from another angle.

[0017] Figure 8 yes Figure 7 Enlarged view of point D.

[0018] Figure 9 This is a 3D structural diagram of the lifting assembly, which hides a connecting base.

[0019] Figure 10 This is a schematic diagram showing the interaction between the clamping device and the sheet metal. Detailed Implementation

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

[0021] As attached Figure 1-9 The novel clamping device shown includes a lifting assembly, which comprises two connecting seats 1. Each connecting seat 1 has a fixedly installed electric lifting telescopic rod 2. The telescopic ends of both electric lifting telescopic rods 2 point downwards and are fixedly installed on the same mounting seat 3. Two vertically extending lifting guide columns 4 are fixedly installed on the mounting seat 3 and the connecting seat 1 respectively. Each connecting seat 1 has a fixedly installed lifting sleeve that slides in cooperation with the corresponding lifting guide column 4. Synchronous teeth 5 are provided on the outer surface of the telescopic ends of the electric lifting telescopic rods 2, and synchronous gears 6 are installed through the meshing of the synchronous teeth 5. The synchronous gears 6 of both connecting seats 1 are fixedly installed on the same synchronous shaft 7. The telescopic movement of the electric lifting telescopic rods 2 drives the mounting seat 3 to rise and fall. Due to the constraints of the synchronous teeth 5, synchronous gears 6, and synchronous shaft 7, the telescopic amount and speed of the two electric lifting telescopic rods 2 are completely synchronized, ensuring the parallelism of the mounting seat 3.

[0022] Two parallel guide optical shafts 8 are horizontally fixedly mounted on the mounting base 3. Two movable clamps 9 are slidably mounted on the guide optical shafts 8. Each movable clamp 9 includes a sliding slider 10, and each sliding slider 10 is slidably connected to the two guide optical shafts 8. A limit block 11 is provided at the top of the sliding slider 10. A movable clamping block 12 is mounted on the limit block 11 and rotates up and down via a rotating shaft. A limit groove 13 that matches and nests with the limit block 11 is provided at the bottom of the movable clamping block 12. One end of the movable clamping block 12 is fitted over the limit block 11 and is mounted to the limit block 11 and rotates via a rotating shaft. A support spring 14 for supporting the movable clamping block 12 is installed on one side of the limit block 11 at the top of the sliding slider 10. The other end of the support spring 14 supporting the movable clamping block 12 is away from the limit block 11. One side of the movable clamping block 12 is a clamping surface 15, and the other side of the movable clamping block 12 is a pressure guide slope 16 for contacting and pressing the movable clamping block 12 to descend. The mounting base 3 has a pulley 17 rotatably mounted on the outer side of both ends of the guide optical shaft 8. The two pulleys 17 are meshed with the same transmission belt 18, which is parallel to the guide optical shaft 8. The lower section of the transmission belt 18 is fixedly connected to the bottom of the two movable sliders 10. One of the pulleys 17 is connected to the clamping motor 19 fixedly mounted on the mounting base 3. The clamping motor 19 drives the two movable clamps 9 to move closer to or away from the fixed clamp 20 through the transmission of the pulleys 17 and the transmission belt 18.

[0023] Mounting base 3 also includes a position adjustment assembly, which comprises an adjustment slide rail 21 fixedly mounted to mounting base 3 and an adjustment motor 22. Two fixed clamps 20 are slidably mounted on the adjustment slide rail 21. The two fixed clamps 20 and two movable clamps 9 are paired one-to-one to form two sets of clamping assemblies. The fixed clamps 20 include an adjustment slide block 23 slidably mounted to the adjustment slide rail 21 via a slider. A telescopic cylinder 24 is fixedly mounted on the adjustment slide block 23. The telescopic end of the telescopic cylinder 24 extends downwards and passes through the adjustment slide block 23. A connecting block 25 is fixedly mounted on the telescopic end of the telescopic cylinder 24. Two parallel stabilizing shafts 26 are fixedly mounted on the connecting block 25 extending upwards. Two stabilizing blocks 27 are fixedly mounted on the adjustment slide block 23, each slidingly engaging with one of the two stabilizing shafts 26. The stabilizing shafts 26 pass through the stabilizing blocks 27 and are then fixedly mounted. The device is equipped with a fixed clamping block 28, which is driven to rise and fall by a telescopic cylinder 24. The power shaft of the adjusting motor 22 is connected to the adjusting screw 29. The adjusting screw 29 is rotatably connected to the mounting base 3. The adjusting screw 29 is threadedly connected to a screw sleeve 30. The screw sleeve 30 is fixedly connected to the adjusting slide 23 of one of the clamping components. The adjusting slides 23 of the two clamping components are fixedly connected by a limiting rod 31. The adjusting motor 22 synchronously drives the two fixed clamping bases 20 to slide along the adjusting slide rail 21 and adjust their positions.

[0024] The clamping device provided in this embodiment is a clamping device applied to a woodworking CNC automatic five-sided drilling machine. It is used in conjunction with the conventional feeding structure on the five-sided drilling machine. The feeding structure transports the board to the worktable and is clamped by the clamping device before drilling.

[0025] Before use, adjust the height of the entire clamping device by lifting the electric telescopic rod 2 according to the actual processing requirements. Then, adjust the position of the fixed clamp 20 by adjusting the motor 22 so that the fixed clamp 20 can be used as a positioning structure for the plate. If processing small-area plates, it is also necessary to replace the limit rod 31 of the corresponding length according to the size of the plate so that the distance between two or more sets of fixed clamps 20 is adapted to the size of the plate.

[0026] During use, when processing large-area sheets, only one set of clamping components is used. Specifically, the telescopic cylinder 24 of one of the fixed clamping seats 20 is not activated. The sheet material is conveyed by the conveying structure and contacts the guide slope 16. With the cooperation of the conveying structure and the pressing structure, the continued movement of the sheet material presses down the movable clamping block 12 and allows it to continue passing through. After the sheet material crosses the movable clamping block 12, the movable clamping block 12 resets under the action of the support spring 14. The sheet material continues to move until it contacts the fixed clamping block 28 and stops. At this time, the clamping motor 19 starts and drives the movable clamping seat 9 to move towards the fixed clamping seat 20 until the movable clamping block 12 contacts the sheet material. The movable clamping block 12 and the fixed clamping block 28 cooperate to clamp and fix the sheet material, allowing drilling to proceed. This utilizes the function of a traditional clamping device. Because only one set of clamping components is used, the movable clamping blocks 12 of the other clamping components are continuously pressed down by the sheet material with the cooperation of the pressing structure.

[0027] When processing small-area boards, two sets of clamping components can be used to form a dual-station worktable. Similar to the above process, during the conveying process, the first board presses down two movable clamping blocks 12 and contacts the downstream fixed clamping block 28. Then, during the conveying process, the second board presses down one movable clamping block 12 and contacts the upstream fixed clamping block 28. Finally, the clamping motor 19 starts and drives two movable clamping seats 9 to clamp the two boards towards the fixed clamping seat 20. This can realize dual-station processing, make full use of the worktable space, and improve drilling efficiency.

[0028] The above-described embodiments are merely one implementation of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A novel material clamping device, characterized by, It includes several groups of clamping assemblies, the clamping assembly includes fixed clamp seat (20) and movable clamp seat (9), the fixed clamp seat (20) includes telescopic cylinder (24) and fixed clamp block (28) driven by the telescopic cylinder (24) and transmission connection with the telescopic cylinder (24), the movable clamp seat (9) includes moving slider (10) transmission connection with the driving structure, the driving structure drives the movable clamp seat (9) close to or away from the fixed clamp seat (20), the top of the moving slider (10) is rotatably mounted with movable clamp block (12), the top of the moving slider (10) is mounted with supporting spring (14) for supporting the movable clamp block (12) on one side of the movable clamp block (12), one side of the movable clamp block (12) is clamping surface (15), the other side of the movable clamp block (12) is guide pressure inclined plane (16) for contacting and pressing the movable clamp block (12) to descend.

2. A novel clamping device as claimed in claim 1, wherein, The top of the moving slider (10) is provided with limiting block (11), the bottom of the movable clamp block (12) is provided with limiting groove (13) matched with the limiting block (11), one end of the movable clamp block (12) is rotatably mounted to the limiting block (11) by being sleeved outside the limiting block (11), and the supporting spring (14) is mounted to the top of the limiting block (11) and supports the other end of the movable clamp block (12) away from the limiting block (11).

3. A novel material clamping device as claimed in claim 2, wherein, It further includes mounting seat (3), the mounting seat (3) is horizontally fixedly mounted with several guide light shafts (8), the moving slider (10) is slidably mounted to the guide light shaft (8), the mounting seat (3) is rotatably mounted with belt pulley (17) on one side of both ends of the guide light shaft (8), the two belt pulleys (17) are engagedly mounted with the same transmission belt (18), the transmission belt (18) is parallel with the guide light shaft (8), one section of the transmission belt (18) is fixedly connected with the moving slider (10), and one of the belt pulleys (17) is in transmission connection with the clamping motor (19) fixedly mounted to the mounting seat (3).

4. A novel material clamping device as claimed in claim 3, wherein, The mounting base (3) is further provided with a position adjusting assembly, which comprises an adjusting slide rail (21) and an adjusting motor (22) fixed to the mounting base (3), the fixed clamping base (20) further comprises an adjusting slide base (23) fixed to the adjusting slide rail (21) and sliding through a sliding block, the telescopic cylinder (24) is fixed to the adjusting slide base (23) and has a telescopic end extending downward and penetrating through the adjusting slide base (23), the telescopic end of the telescopic cylinder (24) is fixed with a connecting block (25), the connecting block (25) is fixed with a stabilizing shaft (26) extending upward, the adjusting slide base (23) is fixed with a stabilizing block (27) slidingly matched with the stabilizing shaft (26), and the stabilizing shaft (26) is fixed with the fixed clamping block (28) after penetrating through the stabilizing block (27); the power shaft of the adjusting motor (22) is connected to an adjusting lead screw (29), the adjusting lead screw (29) is rotationally connected to the mounting base (3), the adjusting lead screw (29) is fixed with a lead screw sleeve (30) through thread connection, the lead screw sleeve (30) is fixedly connected to the adjusting slide base (23) of one set of clamping assemblies, and the adjusting slide bases (23) of adjacent clamping assemblies are fixedly connected through a limiting rod (31).

5. A novel material clamping device as claimed in claim 4, wherein, The lifting assembly further comprises a plurality of connecting bases (1), the connecting bases (1) are fixedly provided with lifting electric telescopic rods (2), the telescopic ends of the lifting electric telescopic rods (2) are fixedly connected to the mounting base (3), the mounting base (3) is further fixedly provided with lifting guide columns (4) extending upward and downward, and the connecting bases (1) are fixedly provided with lifting sliding sleeves slidingly matched with the lifting guide columns (4).

6. A novel clamping device as claimed in claim 5, wherein, The outer surface of the telescopic end of the lifting electric telescopic rod (2) is provided with a synchronous gear (6) engaged through a synchronous gear (5), and all the synchronous gears (6) of the connecting bases (1) are fixedly connected to the same synchronous shaft (7).