Mechanical arm for nail shooting of foot pier
By optimizing the structure of the robotic arm and adopting a floating platform, fixed pressure arm, and quick-release components, the problems of unstable clamping force and damage to the pallet were solved, achieving stable nailing and improved construction efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING BENEL TECHNOLOGY CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-05-01
AI Technical Summary
The robotic arm's clamping force is unstable during nail firing, causing foot displacement, and the lack of cushioning design may damage the pallet surface.
A robotic arm structure was designed, comprising a floating platform assembly, a fixed pressure arm assembly, and a quick-release assembly. The floating platform assembly allows for slight floating, the fixed pressure arm assembly provides stable clamping force through flexible contact pads and rebound springs, and the quick-release assembly secures the assembly through studs and lugs, adapting to pallets of different thicknesses and protecting the pallet surface.
This technology enables the robotic arm to stably press the support plate during nailing, preventing displacement and surface damage, and improving nailing accuracy and construction efficiency.
Smart Images

Figure CN224183063U_ABST
Abstract
Description
A robotic arm for nailing on foot blocks Technical Field
[0001] This utility model relates to the field of robotic arm technology, specifically a robotic arm for nailing on foot blocks. Background Technology
[0002] The foot-mounted nail-shooting robotic arm is a specialized device used for pallet positioning and nail-shooting operations in construction. Through the floating platform component at the end of the robotic arm and the nail gun working together, it achieves the clamping of the pallet and the firing of the nail gun. This device is widely used in scenarios where the installation accuracy of the pallet is required, improving construction efficiency and quality.
[0003] When the robotic arm body is used for nailing, insufficient clamping force may cause displacement of the foot block, affecting the positioning accuracy of the nail gun. If the clamping force of the robotic arm body is increased, the rigid contact due to the lack of buffer design may cause damage to the surface of the pallet. To address the above problems, we propose a robotic arm for nailing with foot block that can adapt the clamping force. Summary of the Invention
[0004] The purpose of this invention is to provide a robotic arm for nailing foot blocks, in order to solve the problems mentioned in the background art, such as unstable clamping force and displacement of the foot block during nailing.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a robotic arm for shooting nails on foot blocks, comprising: a robotic arm body, a floating platform assembly at the end of the robotic arm body, a fixed pressure arm assembly connected to the floating platform assembly, the floating platform assembly causing the fixed pressure arm assembly to float slightly in the vertical direction, the fixed pressure arm assembly pressing the foot block support plate, and a quick-release assembly connected to the fixed pressure arm assembly.
[0006] The floating platform assembly includes a nail gun mounting base fixed to the floating platform plate, which is used to support the nail gun and allow it to change position within a preset range. The floating platform plate, through linkage with the fixed pressure arm assembly, ensures that the foot position is stable when the nail gun is fired.
[0007] The fixed pressure arm assembly includes a pressure arm limiting sleeve fixedly connected to the floating platform plate. A pressure arm telescopic rod is slidably connected inside the pressure arm limiting sleeve. One end of the pressure arm telescopic rod is fixedly connected to the support plate pressure arm. A flexible contact pad is attached to the bottom of the support plate pressure arm. One end of the support plate pressure arm is fixedly connected to a pressure arm return spring. The other end of the pressure arm return spring is fixedly connected to the pressure arm limiting sleeve. The pressure arm return spring and the pressure arm telescopic rod are coaxially arranged.
[0008] The quick-release assembly includes a fixed limiting plate fixed to the bottom of the floating platform plate, a sliding groove on the outside of the pressure arm limiting sleeve, the sliding groove being slidably connected to the fixed limiting plate, four ear plates fixedly connected to the outside of the pressure arm limiting sleeve, a stud threadedly connected to the middle of the ear plate, and a hand-tightening sleeve fitted at both ends of the stud. The inner wall of the hand-tightening sleeve has an internal thread matching the external thread of the stud. By rotating the hand-tightening sleeve, the stud clamps the ear plate and the floating platform plate, thereby restricting the axial movement and rotation of the pressure arm fixing assembly.
[0009] This utility model has at least the following beneficial effects:
[0010] In use, this utility model optimizes the end structure of the robotic arm body, thus improving the problems of low disassembly and assembly efficiency and foot displacement during nailing of traditional devices. The fixed pressure arm assembly can automatically adapt to the needs of pallets of different thicknesses through the linkage of the pressure arm height adjustment stud and the pressure arm limit sleeve, avoiding overpressure damage or insufficient clamping. At the same time, the flexible contact pad at the bottom of the pallet pressure arm buffers the clamping force and protects the integrity of the pallet surface. Attached Figure Description
[0011] Figure 1 is a schematic diagram of the overall structure of this utility model;
[0012] Figure 2 is a rear oblique view of the structure of this utility model;
[0013] Figure 3 is a schematic diagram of the fixed pressure arm assembly of this utility model;
[0014] Figure 4 is a schematic diagram of the quick-release component of this utility model.
[0015] In the diagram: 1. Main body of the robotic arm; 2. Floating platform assembly; 20. Floating platform plate; 21. Nail gun mounting base; 3. Fixed pressure arm assembly; 30. Flexible contact pad; 31. Support plate pressure arm; 32. Pressure arm telescopic rod; 33. Pressure arm limiting sleeve; 34. Pressure arm return spring; 4. Quick release assembly; 40. Fixed limiting plate; 41. Slide groove; 42. Ear plate; 43. Stud; 44. Hand-tightening sleeve. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.
[0017] Example 1
[0018] Please refer to Figures 1-4. This utility model provides a technical solution: a robotic arm for foot-mounted nailing, comprising: a robotic arm body 1, a floating platform assembly 2 connected to the end of the robotic arm body 1, the robotic arm body 1 positioning and driving the floating platform assembly 2 and the fixed pressure arm assembly 3 through the end, ensuring the accurate pressing of the support plate and the stable firing of the nail gun in foot-mounted nailing operations.
[0019] The floating platform assembly 2 includes a floating platform plate 20 fixedly connected to the front end of the robotic arm body 1. The floating platform plate 20 supports the weight of the nail gun and pressure arm assembly, while allowing slight vertical floating. A nail gun mounting base 21 is fixed to the top of the floating platform plate 20 to support the nail gun and allow it to be repositioned within a predetermined range. Through the slight vertical floating design, it can adapt to foot support plates of different thicknesses or uneven surfaces, ensuring that the pressure arm assembly 3 is always in contact with the workpiece surface, avoiding insufficient clamping or nail gun displacement due to workpiece deviation.
[0020] The fixed pressure arm assembly 3 includes a pressure arm limiting sleeve 33 fixedly connected to the floating platform plate 20. A pressure arm telescopic rod 32 is slidably connected inside the pressure arm limiting sleeve 33. One end of the pressure arm telescopic rod 32 is fixedly connected to the pallet pressure arm 31. A flexible contact pad 30 is attached to the bottom of the pallet pressure arm 31. The flexible contact pad 30 (such as rubber or polyurethane material) at the bottom of the pallet pressure arm 31 can buffer the clamping force, prevent the indentation from damaging the workpiece surface, and maintain a uniform pressure distribution. One end of the pallet pressure arm 31 is fixedly connected to a pressure arm return spring 34. The other end of the pressure arm return spring 34 is fixedly connected to the pressure arm limiting sleeve 33. The pressure arm return spring 34 and the pressure arm telescopic rod 32 are coaxially arranged.
[0021] The quick-release assembly 4 includes a fixed limiting plate 40 fixed to the bottom of the floating platform plate 20. The pressure arm limiting sleeve 33 has a sliding groove 41 on its outside. The sliding groove 41 is slidably connected to the fixed limiting plate 40. Four ear plates 42 are fixedly connected to the outside of the pressure arm limiting sleeve 33. A stud 43 is threadedly connected to the middle of the ear plate 42. Hand-tightening sleeves 44 are sleeved at both ends of the stud 43. The inner wall of the hand-tightening sleeve 44 is provided with an internal thread that matches the external thread of the stud 43. By rotating the hand-tightening sleeve 44, the stud 43 clamps the ear plate 42 and the floating platform plate 20, thereby restricting the axial movement and rotation of the pressure arm fixing assembly 3.
[0022] During use, the main body 1 of the robotic arm moves to the position of the foot support plate. The end of the main body 1 of the robotic arm drives the floating platform assembly 2 to press down. The vertical floating function of the floating platform plate 20 automatically compensates for the slight undulations on the surface of the workpiece, ensuring that the fixed pressure arm assembly 3 is in contact with the support plate. The pressure arm telescopic rod 32 in the pressure arm limiting sleeve 33 moves downward under the elastic force of the pressure arm return spring 34, driving the support plate pressure arm 31 to press the support plate. The flexible contact pad 30 fits against the surface of the support plate, providing a stable pressing force while avoiding scratching the workpiece. The nail gun (installed on the nail gun mounting base 21) completes the nailing and firing actions under the drive of the robotic arm. Since the pressure arm assembly 3 has fixed the support plate, no additional clamping device is needed during the nailing process, reducing the impact of vibration on positioning accuracy. After the nailing is completed, the pressure arm return spring 34 pushes the pressure arm telescopic rod 32 back to its original position, and the support plate pressure arm 31 automatically detaches from the workpiece, preparing for the next operation. If the position of the pressure arm assembly 3 needs to be adjusted, the operator can loosen the stud 43 by rotating the hand-tightening sleeve 44, slide the pressure arm limit sleeve 33 to the new position, and then re-lock it.
[0023] Example 2
[0024] In this second embodiment, the other structures remain unchanged. The difference from the first embodiment is that the hand-tightening sleeve 44 is provided with an arc-shaped transition 5 on the outside. The design of the arc-shaped transition 5 makes the rotation operation of the hand-tightening sleeve 44 smoother and reduces the fatigue of the operator.
[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A robotic arm for driving nails onto foot blocks, comprising: The main body of the robotic arm is characterized in that: a floating platform assembly is provided at the end of the main body of the robotic arm, the floating platform assembly is connected to a fixed pressure arm assembly, the floating platform assembly causes the fixed pressure arm assembly to float slightly in the vertical direction, the fixed pressure arm assembly presses against the foot support plate, and the fixed pressure arm assembly is connected to a quick-release assembly.
2. A mechanical arm for use in foot peg pin shooting according to claim 1, characterized in that: The floating platform assembly includes a floating platform plate fixedly connected to the front end of the robotic arm body, and a nail gun mounting base is fixed on the floating platform plate.
3. The robotic arm for driving nails onto foot blocks according to claim 2, characterized in that: The fixed pressure arm assembly includes a pressure arm limiting sleeve fixedly connected to the floating platform plate. A pressure arm telescopic rod is slidably connected inside the pressure arm limiting sleeve. One end of the pressure arm telescopic rod is fixedly connected to the support plate pressure arm. A flexible contact pad is attached to the bottom of the support plate pressure arm. A pressure arm return spring is fixedly connected to one end of the support plate pressure arm. The other end of the pressure arm return spring is fixedly connected to the pressure arm limiting sleeve. The pressure arm return spring and the pressure arm telescopic rod are coaxially arranged.
4. The robotic arm for driving nails onto foot blocks according to claim 1, characterized in that: The quick-release assembly includes a fixed limiting plate fixed to the bottom of the floating platform plate. The pressure arm limiting sleeve has a sliding groove on its outside, which is slidably connected to the fixed limiting plate. Multiple ear plates are fixedly connected to the outside of the pressure arm limiting sleeve. A stud is threadedly connected to the middle of the ear plate. Hand-tightening sleeves are fitted at both ends of the stud. The inner wall of the hand-tightening sleeve has an internal thread that matches the external thread of the stud. By rotating the hand-tightening sleeve, the stud is fixed between the ear plate and the floating platform plate.
5. The robotic arm for driving nails into foot blocks according to claim 4, characterized in that: The outside of the hand-tightening sleeve has an arc-shaped transition.