Numerical control tool protection mechanism

Abstract

A numerical control cutter protection mechanism relates to the technical field of cutters, is mounted on a cutter bar and comprises a downward pressing assembly and a locking assembly, a clamping groove is formed in the front end of the cutter bar, an alloy blade is inserted into the clamping groove and locked and fixed through a fixing bolt, the downward pressing assembly comprises a fixing pressing plate and a first bolt, an insertion notch is formed in the cutter bar, and the first bolt is fixedly connected with the clamping groove. A fixed pressing plate is placed in the inserting groove opening and fixedly connected to the cutter bar through a first bolt. According to the utility model, the downward pressing assembly is arranged, so that the alloy blade is effectively prevented from loosening and falling off in the working process; the additional safety guarantee is provided for the cutter by adding the locking assembly, the cutter is effectively prevented from being loosened or damaged due to vibration or external force impact, the self-locking function is achieved, and the stable locking state can be kept even under strong vibration or impact.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting tools, and particularly relates to a numerical control tool protection mechanism. Background Technique

[0002] In the current technical field, the turning tool used in a numerical control lathe usually depends on installing and fixing a cutting blade on a tool shank to perform the cutting task. During the cutting operation, the cutting blade directly contacts the surface of the workpiece to be machined, and the material is removed through rotational and feeding movements. However, a common problem is that due to the cutting blade being under high load operation for a long time and frequent contact with the workpiece, it is extremely prone to breakage, that is, the so-called cutting blade chipping phenomenon, which seriously affects the machining efficiency and the quality of the workpiece.

[0003] To address this problem, the industry has adopted the method of adding a fixed pressing plate on the tool shank and applying pressure to the rear end of the alloy cutting blade using a pressing plate screw, in order to achieve the purpose of stabilizing the cutting blade and preventing it from shifting or falling off during cutting. In practical applications, when the turning tool interacts with the workpiece, continuous and opposite reaction forces will be generated. These forces act not only on the cutting blade but also on the tool shank and the fixing components. Over time, this continuous reverse force will cause the screws of the fixed pressing plate to gradually loosen, which may then lead to the rotation or displacement of the pressing plate itself. Once the position of the fixed pressing plate is no longer stable, its original function of fixing the cutting blade will be greatly reduced, and the stability and safety of the cutting blade during the cutting process will also be seriously threatened. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problems raised in the above background technique, and then a numerical control tool protection mechanism is proposed.

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

[0006] A numerical control tool protection mechanism is installed on a tool shank, and includes a pressing component. A clamping groove is provided at the front end of the tool shank, an alloy cutting blade is inserted into the clamping groove and locked and fixed by a fixing bolt. The pressing component includes a fixed pressing plate and a first bolt. A plugging slot opening is provided on the tool shank, and the fixed pressing plate is placed in the plugging slot opening, and the fixed pressing plate is fixedly connected to the tool shank by the first bolt.

[0007] Further, the end of the fixed pressing plate abuts against the surface of the alloy cutting blade.

[0008] Further, a positioning threaded hole is provided in the middle of the plugging slot opening, and a locking bolt is threadedly connected in the positioning threaded hole.

[0009] Further, it further includes a locking assembly. A locking threaded hole is provided on the tool shank. The locking threaded hole horizontally penetrates through the positioning threaded hole. A through hole is provided on the locking bolt. The locking assembly includes a flexible spring, a pin and a locking bolt. A flexible spring is provided at the bottom of the locking bolt hole. When the locking bolt is threadedly connected to the positioning threaded hole, the end of the pin can sequentially insert into the locking threaded hole and the through hole and then abut against the flexible spring.

[0010] Further, the locking bolt is threadedly connected to the locking threaded hole and presses the pin to cause elastic deformation of the flexible spring.

[0011] Further, the end of the pin is provided with a rounded corner.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: Through the setting of the pressing-down assembly, the present utility model effectively prevents the alloy blade from loosening and falling off during the working process; the addition of the locking assembly provides additional safety protection for the tool, effectively preventing the tool from loosening or being damaged due to vibration or external impact, and has a self-locking function, and can maintain a stable locking state even under strong vibration or impact; the rounded corner design at the end of the pin reduces the friction and resistance during the insertion of the pin, making the installation smoother, and at the same time reducing the damage to the surrounding components. Description of the Drawings

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 is a schematic structural diagram of the locking assembly;

[0015] Wherein: 1 tool shank, 11 card slots, 12 positioning threaded holes, 13 insertion slot openings, 2 alloy blades, 21 fixing bolts, 3 pressing-down assembly, 31 fixing pressing plate, 32 first bolt, 321 through hole, 4 locking assembly, 41 locking threaded hole, 42 flexible spring, 43 pin, 44 locking bolt. Detailed Embodiment

[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model. The present utility model will be further described in conjunction with the drawings and embodiments:

[0017] Such as Figure 1 - Figure 2As shown in the figure, a numerical control tool protection mechanism is installed on the tool shank 1 and includes a pressing component 3. A clamping groove 11 is provided at the front end of the tool shank. An alloy blade 2 is inserted into the clamping groove and locked and fixed by a fixing bolt 21. Such a design facilitates the quick replacement and stable installation of the alloy blade, improving work efficiency and the stability of the blade. The pressing component includes a fixed pressing plate 31 and a first bolt 32. A plugging notch 13 is provided on the tool shank. The fixed pressing plate is placed in the plugging notch, and the fixed pressing plate is fixedly connected to the tool shank by the first bolt. The setting of the pressing component effectively prevents the alloy blade from loosening and falling off during the working process and enhances the overall rigidity of the tool.

[0018] Furthermore, the end of the fixed pressing plate abuts against the surface of the alloy blade.

[0019] Furthermore, a positioning threaded hole 12 is provided in the middle of the plugging notch, and a locking bolt is threadedly connected in the positioning threaded hole.

[0020] In at least one embodiment, a locking component 4 is further included. A locking threaded hole 41 is provided on the tool shank. The locking threaded hole horizontally penetrates the positioning threaded hole. A through hole 321 is provided on the first bolt. The locking component includes a flexible spring 42, a plug pin 43 and a locking bolt 44. A flexible spring is provided at the bottom of the locking bolt hole. When the locking bolt is threadedly connected in the positioning threaded hole, the end of the plug pin can sequentially insert into the locking threaded hole and the through hole and then abut against the flexible spring. The addition of the locking component provides additional safety protection for the tool and effectively prevents the tool from loosening or being damaged due to vibration or external force impact.

[0021] Furthermore, the locking bolt is threadedly connected in the locking threaded hole and presses the plug pin to cause the flexible spring to undergo elastic deformation. This design enables the locking component to have a self-locking function and can maintain a stable locking state even under strong vibration or impact.

[0022] Furthermore, the end of the plug pin is provided with a rounded corner. The rounded corner design at the end of the plug pin reduces the friction and resistance during the insertion process of the plug pin, making the installation smoother and also reducing the damage to surrounding components.

[0023] Working method: First, accurately insert the alloy blade 2 into the clamping groove 11 at the front end of the tool shank 1 to ensure a tight fit between the blade and the clamping groove without any shaking. Then, use the fixing bolt 21 to lock the alloy blade in the clamping groove and rotate the bolt until the blade is stable and immovable to ensure that the blade will not fall off or move during the machining process. Place the fixed pressing plate 31 in the plugging notch 13 of the tool shank 1 to ensure that the position of the pressing plate is correct and it fits tightly with the tool shank. Use the first bolt 32 to fasten the fixed pressing plate to the tool shank, and at the same time ensure that the end of the fixed pressing plate tightly abuts against the surface of the alloy blade to provide additional support and fixing force.

[0024] If the locking component 4 is included in this embodiment, thread the locking bolt 44 into the positioning threaded hole 12, and at the same time ensure that the through hole 321 on the locking bolt is aligned with the locking threaded hole 41 for subsequent insertion of the pin. Place the flexible spring 42 at the bottom of the locking threaded hole to ensure that the spring is in the correct position and not damaged. Insert the end of the pin 43 into the locking threaded hole 41 and the through hole 321 in sequence until the end of the pin abuts against the flexible spring 42. The rounded guide angle design of the pin helps to reduce friction and resistance, making the installation smoother. Continue to rotate the locking bolt 44 so that it is fully threaded into the locking threaded hole 41 and presses the pin 43, causing the flexible spring 42 to undergo elastic deformation. In this way, the locking component can provide additional locking force and stability for the tool.

[0025] The above has shown and described 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 by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and all these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A CNC tool protection mechanism, mounted on a tool bar, characterized in that: It includes a pressing component, the front end of the knife rod is provided with a slot, an alloy blade is inserted in the slot and is locked and fixed by a fixing bolt, the pressing component includes a fixed pressure plate and a first bolt, the knife rod is provided with an insertion slot, a fixed pressure plate is placed in the insertion slot, and the fixed pressure plate is fixedly connected to the knife rod by a first bolt.

2. The CNC tool protection mechanism according to claim 1, characterized in that: The end of the fixed pressing plate abuts against the surface of the alloy blade.

3. The CNC tool protection mechanism according to claim 1 or 2, characterized in that: A positioning threaded hole is provided in the middle of the inserting slot, and a locking bolt is threadedly connected to the inner thread of the positioning threaded hole.

4. The CNC tool protection mechanism according to claim 3, characterized in that: It also includes a locking assembly, a locking threaded hole is provided on the knife rod, the locking threaded hole horizontally passes through the positioning threaded hole, a through hole is provided on the locking bolt, the locking assembly includes a flexible spring, a latch and a locking bolt, a flexible spring is provided at the bottom of the locking bolt hole, when the locking bolt is threadedly connected to the positioning threaded hole, the end of the latch can be inserted into the locking threaded hole and the through hole in turn and then rest against the flexible spring.

5. The CNC tool protection mechanism according to claim 4, characterized in that: The locking bolt is threadedly connected in the locking threaded hole and squeezes the latch pin to cause elastic deformation of the flexible spring.

6. The CNC tool protection mechanism according to claim 4, characterized in that: The end of the latch pin is rounded.

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