Quick assembling and disassembling mechanism for numerical control cutter

Abstract

A quick assembling and disassembling mechanism for a numerical control tool relates to the technical field of numerical control tools and comprises a square tool rest, the square tool rest comprises a bottom plate, a central supporting block is mounted on the bottom plate, a top plate is arranged on the central supporting block, a guide mechanism is arranged on the square tool rest, and a lower pressing plate is mounted on the guide mechanism. A hard rubber block is arranged on the lower pressing plate, a center bolt is connected to the top plate in a threaded mode, and the lower end of the center bolt can abut against the top of the lower pressing plate so as to drive the hard rubber block to abut against the turning tool. According to the turning tool clamping device, efficient and stable clamping of a turning tool is achieved, accurate movement of the lower pressing plate is guaranteed through cooperation of the top plate and the guide mechanism, firm clamping of the turning tool is guaranteed through elastic deformation of the hard rubber block, damage is prevented, threaded connection of the center bolt is easy and convenient to operate, the lower pressing plate can reset automatically through the flexible spring, and rapid assembling and disassembling of the turning tool are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control tools, in particular to a quick assembly and disassembly mechanism for numerical control tools. Background Art

[0002] The clamping mechanism for machine tool tools traditionally relies on manual tightening of fixing bolts, a process that is particularly tedious and time-consuming during tool changes. Operators must exert considerable physical effort to loosen the bolts before removing and installing the tool, which not only prolongs the cycle time but also significantly reduces production efficiency.

[0003] Chinese patent CN209773492U discloses a quick-change tool device for CNC machine tools. This device features an electric drive unit built into the upper base housing. The use of a built-in motor directly increases overall manufacturing costs. Furthermore, the addition of the motor inevitably increases the size and weight of the device, compromising the compactness and flexibility of the machine tool and potentially interfering with other moving parts. This limits its practicality and popularity in various application scenarios. Utility Model Content

[0004] The purpose of the present invention is to solve the problems raised in the above background technology, and then proposes a CNC tool quick loading and unloading mechanism.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A CNC tool quick loading and unloading mechanism includes a square tool holder, the square tool holder includes a base plate, a central support block is installed on the base plate, a top plate is provided on the central support block, a guide mechanism is provided on the square tool holder, a lower pressure plate is installed on the guide mechanism, a hard rubber block is provided on the lower pressure plate, a center bolt is threadedly connected to the top plate, and the lower end of the center bolt can abut against the top of the lower pressure plate to drive the hard rubber block to abut against the turning tool.

[0007] Furthermore, when the lower end of the central bolt presses the lower pressing plate so that the hard rubber block abuts against the turning tool, the hard rubber block undergoes elastic deformation.

[0008] Furthermore, the guide mechanism includes a guide rod, a guide hole is provided on the top plate, a guide rod is slidably fitted in the guide hole, and the lower end of the guide rod is fixedly connected to the top of the lower pressure plate.

[0009] Furthermore, a limiting plate is provided on the top of the guide rod.

[0010] Furthermore, a flexible spring is provided between the top plate and the lower pressure plate.

[0011] Furthermore, the flexible spring can drive the lower pressing plate to move toward the direction close to the top plate.

[0012] Furthermore, the guide mechanism includes a slider, the central support block is provided with a guide groove, the slider is slidably fitted in the guide groove, and the slider is fixedly connected to the lower pressure plate.

[0013] Compared with existing technologies, the present invention offers the following advantages: It achieves efficient and stable clamping of turning tools. The coordination of the top plate and the guide mechanism ensures precise vertical movement of the lower pressure plate, preventing deviation. The elastic deformation of the hard rubber block ensures secure clamping of the turning tool while preventing damage. Furthermore, the threaded connection of the center bolt allows for simple and quick operation, and the presence of a flexible spring allows the lower pressure plate to automatically reset in the absence of external force, facilitating rapid assembly and disassembly of the turning tool and further enhancing the mechanism's automation and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of the first embodiment of the present utility model;

[0015] Figure 2 This is a schematic structural diagram of the second embodiment of the present utility model;

[0016] Among them: 1 bottom plate, 2 center support block, 3 top plate, 4 guide rod, 5 lower pressure plate, 6 hard rubber block, 7 center bolt, 8 slider, 9 guide groove. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. The present invention is further described in conjunction with the drawings and embodiments:

[0018] like Figure 1-Figure 2As shown, a CNC tool quick-loading and unloading mechanism comprises a square tool holder. The square tool holder comprises a base plate 1, a central support block 2 mounted on the base plate, a top plate 3 mounted on the central support block, and a guide mechanism mounted on the square tool holder. The guide mechanism ensures stable vertical movement of a lower pressure plate 5, preventing deviation or shaking. The guide mechanism mounts a lower pressure plate 5, a key component for transmitting clamping force, whose stability directly affects the clamping effect of the turning tool. A hard rubber block 6 is mounted on the lower pressure plate. The hard rubber block 6 has both a certain hardness to provide sufficient clamping force and a certain elasticity to accommodate turning tools of different shapes and sizes. A central bolt 7 is threadedly connected to the top plate. The threaded connection allows for easy adjustment of the distance between its lower end and the lower pressure plate 5, thereby enabling quick loading and unloading of the turning tool. The lower end of the central bolt can abut against the top of the lower pressure plate, driving the hard rubber block against the turning tool. This design makes operation easy and convenient. The turning tool can be clamped or loosened by simply rotating the center bolt 7.

[0019] In a more detailed solution, when the lower end of the center bolt presses the lower pressure plate, causing the hard rubber block to rest against the turning tool, the hard rubber block undergoes elastic deformation. This elastic deformation ensures that the turning tool is firmly clamped while preventing damage to the turning tool due to excessive clamping force.

[0020] In at least one embodiment, Figure 1 As shown, the guide mechanism includes a guide rod 4, which cooperates with a guide hole provided in the top plate. The guide rod slidably fits within the guide hole, and the lower end of the guide rod is fixedly connected to the top of the lower pressure plate. The cooperation between the guide rod 4 and the guide hole ensures stable vertical movement of the lower pressure plate 5, improving the accuracy and reliability of the mechanism.

[0021] Furthermore, a limit plate (not shown) is provided on the top of the guide rod. The existence of the limit plate limits the downward movement distance of the guide rod 4.

[0022] In some embodiments, a flexible spring is provided between the top plate and the lower pressing plate. The flexible spring can drive the lower pressing plate toward the top plate. The presence of the flexible spring allows the lower pressing plate 5 to automatically return to its original position when no external force is applied, facilitating quick assembly and disassembly of the turning tool.

[0023] In at least one embodiment, Figure 2 As shown, the guide mechanism includes a slider 8, which cooperates with a guide groove 9 provided on the central support block. A slider slidably engages within the guide groove, and the lower pressure plate is fixedly connected to the slider. The cooperation between the slider 8 and the guide groove 9 not only ensures stable vertical movement of the lower pressure plate 5, but also makes the structure of the mechanism more compact, saving space.

[0024] To work, ensure that the square tool holder is correctly assembled and installed in the appropriate position. Check that the guide mechanism (the guide rod 4 or the combination of the slider 8 and the guide slot 9) is smooth and free of jamming. Confirm that the hard rubber block 6 is properly installed on the lower pressure plate 5 and that the flexible spring (if applicable) is installed between the top plate 3 and the lower pressure plate 5. Place the turning tool in the appropriate position on the square tool holder, usually around the center support block 2. Ensure that the position of the turning tool corresponds to the abutment surface of the hard rubber block 6.

[0025] Rotate the center bolt 7 until its lower end gradually rests against the top of the lower pressure plate 5. As the center bolt 7 is pressed downward, the lower pressure plate 5 moves downward along the guide mechanism (guide rod 4 or slider 8), and the hard rubber block 6 elastically deforms, pressing tightly against the turning tool. Continue rotating the center bolt 7 until the turning tool is securely fixed to the square tool holder.

[0026] During use, regularly check the tightness of each component and the smoothness of the guide mechanism. If the hard rubber block 6 is found to be severely worn or its elasticity has decreased, it should be replaced promptly. The flexible spring (if applicable) should maintain a good elastic state to ensure that the lower pressure plate 5 can be stably pressed against the turning tool.

[0027] Rotate the center bolt 7 in the opposite direction, gradually moving its lower end away from the lower pressure plate 5. As the center bolt 7 moves upward, the lower pressure plate 5 moves upward under the action of the flexible spring (if applicable) or gravity, while the hard rubber block 6 returns to its original shape, releasing the clamping force on the turning tool. When the turning tool is fully released, remove it from the square tool holder.

[0028] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A CNC tool quick loading and unloading mechanism, characterized in that: It includes a square tool holder, which includes a base plate, a central support block is installed on the base plate, a top plate is provided on the central support block, a guide mechanism is provided on the square tool holder, a lower pressure plate is installed on the guide mechanism, a hard rubber block is provided on the lower pressure plate, a center bolt is threadedly connected to the top plate, and the lower end of the center bolt can abut against the top of the lower pressure plate to drive the hard rubber block to abut against the turning tool.

2. The CNC tool quick loading and unloading mechanism according to claim 1, characterized in that: When the lower end of the central bolt presses the lower pressing plate so that the hard rubber block abuts against the turning tool, the hard rubber block undergoes elastic deformation.

3. The CNC tool quick loading and unloading mechanism according to claim 1, characterized in that: The guide mechanism includes a guide rod. A guide hole is provided on the top plate. The guide rod is slidably fitted in the guide hole. The lower end of the guide rod is fixedly connected to the top of the lower pressure plate.

4. The CNC tool quick loading and unloading mechanism according to claim 3, characterized in that: A limiting plate is provided on the top of the guide rod.

5. The CNC tool quick loading and unloading mechanism according to claim 1, characterized in that: A flexible spring is provided between the top plate and the lower pressing plate.

6. The CNC tool quick loading and unloading mechanism according to claim 1, characterized in that: The flexible spring can drive the lower pressing plate to move toward the top plate.

7. The CNC tool quick loading and unloading mechanism according to claim 1, characterized in that: The guide mechanism includes a slider. The central support block is provided with a guide groove. The slider is slidably fitted in the guide groove. The slider is fixedly connected to a lower pressure plate.

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