CNC general fixture with anti-falling structure
By introducing anti-drop components and disassembly structures into the CNC universal fixture, the problems of watches easily falling off and poor adaptability are solved, achieving stable clamping and multi-specification adaptability, thus improving the fixture's performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN HUAXIN PRECISION CO LTD
- Filing Date
- 2024-12-30
- Publication Date
- 2026-06-16
AI Technical Summary
Existing general-purpose CNC fixtures lack a watch-proof structure, which makes watches prone to falling off the machining table during processing. Furthermore, they are not suitable for watches of different lengths, thus limiting the scope of use and practicality of the fixtures.
An anti-drop assembly was designed, comprising a base plate, a placement plate, an electric telescopic rod, a screw, and an L-shaped pressure plate. The watch is stably clamped by a threaded connection, and the pressure plate can be easily replaced by disassembling the assembly to accommodate watches of different lengths.
It achieves stable clamping of watches during the processing, preventing them from falling off and getting damaged, and can adapt to watches of different lengths, thus improving the practicality and range of applications of the clamp.
Smart Images

Figure CN224359750U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of watch manufacturing technology, specifically relating to a CNC universal fixture with an anti-drop structure. Background Technology
[0002] A watch, also known as a wristwatch, is an instrument worn on the wrist to tell time. Watches typically use straps made of materials such as leather, rubber, nylon, and stainless steel to fasten the watch head that displays the time on the wrist. During the watch manufacturing process, CNC universal fixtures are usually used to clamp and fix the watch.
[0003] Currently, when watches are clamped using CNC universal fixtures, both ends of the watch are typically clamped. However, because existing CNC universal fixtures lack a structure to prevent the watch from falling off, if one end of the watch becomes loose, the entire watch can easily fall off the machining table, causing damage and hindering the normal use of the CNC universal fixture. In addition, existing CNC universal fixtures have difficulty clamping and fixing watches of different lengths, increasing their limitations, greatly affecting their application range, and reducing their practicality. Utility Model Content
[0004] The purpose of this utility model is to provide a CNC universal fixture with an anti-detachment structure to solve the problems of watches easily detaching from the machining table and the difficulty in clamping and fixing watches of different lengths on existing CNC universal fixtures.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a CNC universal fixture with an anti-drop structure, comprising: a base plate and a placement plate, wherein two electric telescopic rods are installed between the base plate and the placement plate, and the output ends of the two electric telescopic rods are connected to rod members, the output ends of the rod members passing through the top of the placement plate, and one end of the rod member passing through the placement plate is connected to a pressure plate; an anti-drop component, wherein the anti-drop component is disposed between the base plate and the placement plate, the anti-drop component includes a screw, the screw is rotatably connected between the base plate and the placement plate through a bearing, and the outer wall of the screw is penetrated by a connecting plate, the screw is threadedly connected to the connecting plate, and two L-shaped pressure plates are symmetrically connected to the top two sides of the connecting plate, the vertical ends of the four L-shaped pressure plates all passing through the top of the placement plate.
[0006] Preferably, a disassembly assembly is provided between the rod and the pressure plate. The disassembly assembly includes a docking block and a docking groove. Two docking blocks are respectively connected to the top of the rod. The docking groove is opened through both sides of the pressure plate. The docking block is inserted into the interior of the docking groove and has a through hole. A rod is inserted through one side of the pressure plate. One end of the rod is inserted through the through hole. A matching insertion hole is opened on one side of the inner wall of the docking groove.
[0007] Preferably, a rubber pad is provided on one side of the bottom of both pressure plates.
[0008] Preferably, the outer wall of the screw is connected to a torsion plate, and the edge of the torsion plate is provided with multiple arc grooves.
[0009] Preferably, an arc-shaped block is connected to the top side of the inner wall of each of the two L-shaped pressure plates.
[0010] Preferably, one end of the insertion rod is connected to a pull ring, and the inside of the insertion hole is provided with a filling pad.
[0011] Compared with the prior art, this utility model has the following advantages:
[0012] (1) By setting an anti-drop component, when it is necessary to prevent the watch from falling off, after clamping the watch on the placement plate, the screw is turned so that the screw rotates between the base plate and the placement plate. Since the screw is threadedly connected to the connecting plate, the L-shaped pressure plate moves downward on the screw through the connecting plate, so that the inner top side of the L-shaped pressure plate presses down on both sides of the top of the watch, thus keeping the watch stable on the placement plate and preventing the watch from easily falling off the processing table and being damaged. This is beneficial to the normal use of CNC general-purpose fixtures.
[0013] (2) By setting up a disassembly and assembly component, when it is necessary to change the specification of the pressure plate, pull the insertion rod outward so that one end of the insertion rod is disengaged from the insertion hole and the through hole, thereby releasing the pressure plate from the limit on the rod. Then, pull the pressure plate upward so that the pressure plate is separated from the docking block, thereby allowing the pressure plate to be replaced. This realizes the replacement of the pressure plate specification, which is convenient for clamping and fixing watches of different lengths, reducing the limitations of CNC universal fixtures and improving the practicality of CNC universal fixtures. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a right-side sectional view of the present invention;
[0016] Figure 3 for Figure 1 Enlarged view of point A;
[0017] In the diagram: 1. Base plate; 2. Placement plate; 3. Electric telescopic rod; 4. Rod; 5. Pressure plate; 6. Rubber pad; 7. Screw; 8. Connecting plate; 9. L-shaped pressure plate; 10. Torsion plate; 11. Arc groove; 12. Arc block; 13. Butt joint block; 14. Butt joint groove; 15. Insert rod; 16. Through hole; 17. Insertion hole; 18. Filler pad; 19. Pull ring. Detailed Implementation
[0018] 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.
[0019] Reference Figures 1-3 As shown, this utility model provides the following technical solution: a CNC universal fixture with an anti-drop structure, comprising: a base plate 1 and a placement plate 2, with two electric telescopic rods 3 installed between the base plate 1 and the placement plate 2, the output ends of the two electric telescopic rods 3 being connected to rods 4, the output ends of the rods 4 penetrating through the top of the placement plate 2, and a pressure plate 5 connected to one end of the rods 4 penetrating through the placement plate 2; an anti-drop component, the anti-drop component being disposed between the base plate 1 and the placement plate 2, the anti-drop component including a screw 7, the screw 7 being rotatably connected between the base plate 1 and the placement plate 2 via a bearing, and a connecting plate 8 penetrating through the outer wall of the screw 7, the screw 7 being threadedly connected to the connecting plate 8, and two L-shaped pressure plates 9 being symmetrically connected on both sides of the top of the connecting plate 8, the vertical ends of the four L-shaped pressure plates 9 penetrating through the top of the placement plate 2.
[0020] Through the above technical solution:
[0021] Specifically, when it is necessary to prevent the watch from falling off, after clamping the watch on the placement plate 2, screw 7 is turned so that screw 7 rotates between the base plate 1 and the placement plate 2. Since screw 7 is threadedly connected to connecting plate 8, L-shaped pressure plate 9 moves downward on screw 7 through connecting plate 8, so that the top side of the inner wall of L-shaped pressure plate 9 presses down on both sides of the top of the watch, thereby keeping the watch stable on the placement plate 2.
[0022] Further embodiments are provided in this utility model, see reference. Figure 1 and Figure 3A disassembly assembly is provided between the rod 4 and the pressure plate 5. The disassembly assembly includes a docking block 13 and a docking groove 14. The two docking blocks 13 are respectively connected to the top of the rod 4. The docking groove 14 is opened through both sides of the pressure plate 5. The docking block 13 is inserted into the interior of the docking groove 14, and the docking block 13 is opened through a through hole 16. A rod 15 is inserted through one side of the pressure plate 5. One end of the rod 15 is inserted through the through hole 16. A hole 17 matching the rod 15 is opened on one side of the inner wall of the docking groove 14.
[0023] Through the above technical solution:
[0024] Specifically, when it is necessary to change the specifications of the pressure plate 5, pull the insertion rod 15 outward so that one end of the insertion rod 15 is disengaged from the insertion hole 17 and the through hole 16, thereby releasing the pressure plate 5 from the limit on the rod 4. Then pull the pressure plate 5 upward so that the pressure plate 5 is separated from the mating block 13, thereby replacing the pressure plate 5 and completing the change of the specifications of the pressure plate 5.
[0025] Reference Figures 1-3 Rubber pads 6 are provided on one side of the bottom of the two pressure plates 5. A torsion plate 10 is connected to the outer wall of the screw 7. Multiple arc grooves 11 are provided at the edge of the torsion plate 10. Arc blocks 12 are connected to the top side of the inner wall of the two L-shaped pressure plates 9. A pull ring 19 is connected to one end of the insertion rod 15. A filling pad 18 is provided inside the insertion hole 17.
[0026] Through the above technical solution:
[0027] Specifically, the rubber pad 6 reduces the wear of the pressure plate 5 on the watch, the arc groove on the edge of the torsion plate 10 facilitates the screw 7, the arc block 12 increases the pressure of the L-shaped pressure plate 9 on the watch, the pull ring 19 facilitates the outward pulling of the insertion rod 15, and the filling pad 18 increases the friction between the insertion rod 15 and the insertion hole 17.
[0028] 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.
[0029] 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 CNC general-purpose clamp having a fall-preventing structure, characterized by , including: The bottom plate (1) and the placement plate (2), two electric telescopic rods (3) are installed between the bottom plate (1) and the placement plate (2), the output end of two electric telescopic rods (3) is connected with the rod (4), the output end of the rod (4) penetrates the top of the placement plate (2), and the end of the rod (4) penetrating the placement plate (2) is connected with the pressing plate (5); The anti-falling assembly is arranged between the bottom plate (1) and the placement plate (2), the anti-falling assembly comprises a screw rod (7), the screw rod (7) is rotatably connected between the bottom plate (1) and the placement plate (2) through a bearing, and the outer wall of the screw rod (7) penetrates the connecting plate (8), the screw rod (7) is in threaded connection with the connecting plate (8), and the top of the connecting plate (8) is symmetrically connected with two L-shaped pressing plates (9) on both sides, the vertical end of the four L-shaped pressing plates (9) penetrates the top of the placement plate (2).
2. The CNC general fixture with anti-falling structure according to claim 1, characterized in that: The dismounting assembly is arranged between the rod (4) and the pressing plate (5), the dismounting assembly comprises a butt joint block (13) and a butt joint groove (14), two butt joint blocks (13) are connected to the top end of the rod (4) respectively, and the butt joint groove (14) penetrates the two sides of the pressing plate (5).
3. The CNC general fixture with anti-falling structure according to claim 2, characterized in that: The butt joint block (13) is inserted into the butt joint groove (14), and the butt joint block (13) penetrates the through hole (16), one side of the pressing plate (5) penetrates the plug rod (15).
4. The CNC general fixture with anti-falling structure according to claim 3, characterized in that: One end of the plug rod (15) penetrates the through hole (16), and the inner wall of the butt joint groove (14) is provided with a plug hole (17) matched with the plug rod (15) on one side.
5. The CNC general fixture with anti-falling structure according to claim 1, characterized in that: The bottom of the two pressing plates (5) is provided with a rubber pad (6) on one side.
6. The CNC general fixture with anti-falling structure according to claim 1, characterized in that: The outer wall of the screw rod (7) is connected with a torsion plate (10), and a plurality of arc grooves (11) are formed in the edge of the torsion plate (10).
7. The CNC general fixture with anti-falling structure according to claim 1, characterized in that: The inner wall of the two L-shaped pressing plates (9) is connected with an arc block (12) on the top side.
8. The CNC general fixture with anti-falling structure according to claim 3, characterized in that: One end of the plug rod (15) is connected with a pull ring (19).
9. The CNC general fixture with anti-falling structure according to claim 4, characterized in that: The plug hole (17) is provided with a filling pad (18) in the inside.