Shockproof carving tool head with replaceable blade

Abstract

The utility model discloses a shockproof carving tool head with a replaceable blade, and relates to the technical field of carving. The anti-vibration cutter comprises a cutter handle, a cavity is formed in the central axis in the cutter handle, a top anti-vibration mechanism is arranged in the cavity and comprises an elastic piece, the top of the elastic piece is fixedly connected with the cutter handle, a damping fin is fixedly installed at the bottom end of the elastic piece, a containing hole is formed in the damping fin, and the top of the containing hole is fixedly connected with the cutter handle. An opening of the placing hole faces downwards, the bottom of the knife handle is fixedly connected with an external thread pipe, and an internal thread mounting pipe is mounted on the outer wall of the external thread pipe in a threaded mode. Part of vibration generated by the blade is absorbed through elastic deformation of the elastic piece, the cylindrical damping fin dissipates vibration energy through the damping performance, meanwhile, the first gasket, the protruding block, the second gasket and the annular gasket which are made of polyurethane materials are adopted, vibration is absorbed and buffered through good elasticity and damping performance, and the service life of the blade is prolonged. And vibration transmission from the blade to the knife handle and equipment is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of carving technology, and specifically relates to a shockproof carving tool head with replaceable blades. Background Technology

[0002] In the field of carving, the carving tool head, as a core component that directly acts on the processed material, plays a decisive role in the carving quality and efficiency. From the delicate texture shaping of handicrafts to the precise cutting and shaping of building decoration materials, and the carving of precision parts in the field of machining, different industries have put forward stringent requirements for carving tool heads. With the deep integration of modern industrial technology and artistic creation concepts, carving technology is rapidly developing towards high precision, high efficiency, and high complexity, which puts forward higher standards for the functionality, durability, and operability of carving tool heads.

[0003] During the carving process, the contact state between the blade and the material being processed is constantly changing, and the cutting force fluctuates accordingly. For example, when carving wood, the wood grain is uneven, and the cutting force will change abruptly when the blade cuts into areas of wood with different densities. When carving stone, the impurities and differences in hardness of the particles inside the stone will also cause the cutting force to be unstable. This periodic change in cutting force can easily induce forced vibration of the tool, which will then be transmitted to the tool head, causing the overall vibration of the tool head to intensify.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a shockproof engraving tool head with replaceable blades to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a shockproof carving tool head with replaceable blades, including a handle, and a cavity is formed on the central axis inside the handle;

[0008] The cavity is provided with a top shock-absorbing mechanism, which includes an elastic element. The top of the elastic element is fixedly connected to the knife handle, and a damping plate is fixedly installed at the bottom of the elastic element. The damping plate has a placement hole inside, and the placement hole faces downward.

[0009] The bottom of the handle is fixedly connected to an external threaded tube, and the internal part of the external threaded tube has a frustum-shaped cavity.

[0010] An internally threaded mounting tube is installed on the outer wall of the externally threaded tube;

[0011] The internally threaded mounting tube is equipped with a spring collet, which has an annular cavity. The inner wall of the spring collet is inlaid with a number of first washers, and the inner walls of the first washers are fixedly connected with protrusions from top to bottom. The outer wall of the spring collet is fixedly installed with a number of second washers.

[0012] The annular cavity is equipped with a blade, and a circular washer is installed between the bottom of the spring collet and the bottom of the internally threaded mounting tube.

[0013] Furthermore, the first gasket, the protrusion, the plurality of second gaskets, and the annular gasket are all made of polyurethane.

[0014] Furthermore, the spring collet has a placement groove inside for placing a plurality of the first pads, and the protrusion protrudes from the inner wall of the spring collet.

[0015] Furthermore, the damping plate is cylindrical and is located within the cavity.

[0016] Furthermore, the top diameter of the frustum cavity is larger than the bottom diameter, and several second gaskets are located inside the frustum cavity.

[0017] Furthermore, the tip of the blade is located within the placement hole.

[0018] This utility model has the following beneficial effects:

[0019] This invention uses an elastic element to absorb part of the vibration generated by the blade through elastic deformation, and a cylindrical damping sheet to dissipate the vibration energy through damping performance. At the same time, a first gasket, a protrusion, a second gasket, and a circular gasket made of polyurethane material are used to absorb and buffer vibrations by utilizing their good elasticity and damping properties, thereby reducing the transmission of vibration from the blade to the tool holder and the equipment.

[0020] When the blade needs to be replaced, the internal threaded mounting tube is rotated in the opposite direction to gradually loosen it from the external threaded tube. As the threads loosen, the axial pressure of the external threaded tube on the second washer is gradually released. The spring collet recovers its deformation due to its own elasticity, and the first washer and protrusion on the inner wall spring back, and the clamping force between them and the blade disappears. At this time, the old blade can be easily removed from the annular cavity of the spring collet, and the new blade can be installed into the annular cavity of the spring collet to complete the blade replacement.

[0021] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a partial cross-sectional view of the middle part of this utility model;

[0025] Figure 3 This is a schematic diagram of the first partial structure of the present invention;

[0026] Figure 4 This is a schematic diagram of the second partial structure of the present invention;

[0027] Figure 5 This is an overall structural diagram of the top shock-absorbing mechanism of this utility model;

[0028] Figure 6 This is a schematic diagram of the third partial structure of the present utility model;

[0029] Figure 7 for Figure 6 Enlarged view of point A in the middle.

[0030] The attached diagram lists the components represented by each number as follows:

[0031] 1. Handle; 2. Cavity; 3. Top anti-vibration mechanism; 301. Elastic element; 302. Damping plate; 303. Placement hole; 4. External threaded tube; 401. Frustum-shaped cavity; 5. Internal threaded mounting tube; 6. Spring collet; 601. Annular cavity; 602. Placement groove; 603. First washer; 604. Protrusion; 605. Second washer; 7. Circular washer; 8. Blade. Detailed Implementation

[0032] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.

[0033] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0034] Please see Figures 1-7 As shown, this utility model is a shockproof carving tool head with replaceable blades, including a handle 1, and a cavity 2 is provided on the central axis inside the handle 1.

[0035] The cavity 2 is provided with a top shock-absorbing mechanism 3. The top shock-absorbing mechanism 3 includes an elastic element 301. The top of the elastic element 301 is fixedly connected to the handle 1, and a damping plate 302 is fixedly installed at the bottom of the elastic element 301. The damping plate 302 has a placement hole 303 inside, and the placement hole 303 opens downward.

[0036] The bottom of the handle 1 is fixedly connected to an external threaded tube 4, and the external threaded tube 4 has a frustum cavity 401 inside;

[0037] An internally threaded mounting pipe 5 is installed on the outer wall of the externally threaded pipe 4;

[0038] A spring collet 6 is installed inside the internally threaded mounting tube 5. An annular cavity 601 is opened inside the spring collet 6. A plurality of first washers 603 are embedded in the inner wall of the spring collet 6. A protrusion 604 is fixedly connected to the inner wall of the plurality of first washers 603 from top to bottom. A plurality of second washers 605 are fixedly installed on the outer wall of the spring collet 6.

[0039] The annular cavity 601 is provided with a blade 8, and a circular gasket 7 is installed between the bottom of the spring collet 6 and the bottom of the internal threaded mounting tube 5.

[0040] The first gasket 603, the protrusion 604, the plurality of second gaskets 605 and the annular gasket 7 are all made of polyurethane.

[0041] After the blade 8 is placed into the annular cavity 601 of the spring collet 6, the internal threaded mounting tube 5 is rotated to tighten it with the external threaded tube 4. During this process, the external threaded tube 4 applies axial pressure to several second washers 605 on the outer wall of the spring collet 6. The pressure is transmitted to the spring collet 6 through the second washers 605. Because the spring collet 6 is elastic, it gradually contracts under pressure, tightly fitting and holding the blade 8. During this process, the first washer 603 and the protrusion 604 on the inner wall of the spring collet 6 deform under pressure, making the spring collet 6 firmly clamp the blade 8. At the same time, the second washers 605 can increase the friction with the inner wall of the external threaded tube 4, improving the connection. For stability, the bottom annular gasket 7 acts as a buffer, further ensuring the stability of the blade 8. When the blade 8 needs to be replaced, rotate the internal threaded mounting tube 5 in the opposite direction to gradually loosen it from the external threaded tube 4. As the threads loosen, the axial pressure of the external threaded tube 4 on the second gasket 605 is gradually released. The spring collet 6 recovers its deformation due to its own elasticity, and the first gasket 603 and the protrusion 604 on the inner wall rebound accordingly, and the clamping force between them and the blade 8 disappears. At this time, the old blade 8 can be easily removed from the annular cavity 601 of the spring collet 6, and the new blade 8 can be installed into the annular cavity 601 of the spring collet 6 to complete the replacement of the blade 8.

[0042] The tool holder 1 is connected to the spindle of the engraving equipment. When the spindle rotates, the tool holder 1 rotates accordingly. Since the blade 8 is fixed by the spring collet 6, the tool holder 1 transmits the rotational motion of the spindle to the blade 8, enabling the blade 8 to perform cutting and engraving operations. During the engraving process, the unstable cutting force on the blade 8 can cause vibration. At this time, the elastic element 301 (preferably a spring) absorbs some of the vibration energy through its own elastic deformation, reducing the vibration amplitude of the tool holder 1. The damping plate 302 can dissipate the vibration energy through its internal damping characteristics, further weakening the vibration. In addition, the first washer 603, the protrusion 604, the second washer 605, and the annular washer 7 are all made of polyurethane. Polyurethane has good elasticity and damping properties, and absorbs and buffers vibration, reducing the transmission of vibration from the blade 8 to the tool holder 1 and the equipment, thereby improving the engraving accuracy and the service life of the blade 8.

[0043] In one embodiment, for the spring collet 6 described above, the spring collet 6 has an internal placement groove 602 for placing a plurality of the first pads 603, and the protrusion 604 protrudes from the inner wall of the spring collet 6.

[0044] The placement groove 602 on the inner wall of the spring collet 6 provides an installation position for the first washer 603. When the spring collet 6 is compressed by pressure, the placement groove 602 restricts the displacement of the first washer 603, ensuring that it will not slide sideways due to uneven force, thereby maintaining the stability of the clamping force. The protrusion 604 protrudes from the inner wall of the spring collet 6 and can deform during the clamping process to better contact the blade 8. In addition, the top and bottom of the inner wall of the spring collet 6 are made of its own rigid material to contact and clamp the blade 8.

[0045] In one embodiment, the damping plate 302 is cylindrical and located within the cavity 2.

[0046] The damping plate 302 is cylindrical in shape and fits the spatial shape of the cavity 2 inside the tool holder. It can be stably placed in the cavity 2, ensuring that the damping plate 302 will not shift or misalign due to insufficient space during the vibration of the tool holder.

[0047] In one embodiment, for the aforementioned frustum cavity 401, the top diameter of the frustum cavity 401 is larger than the bottom diameter, and a plurality of the second gaskets 605 are located inside the frustum cavity 401.

[0048] The truncated cone cavity 401 has a large top and a small bottom, which fits with the second washer 605 on the outer wall of the spring collet 6. When the internal threaded mounting tube 5 is tightened to the external threaded tube 4, the second washer 605 can better accept the axial pressure. Due to the converging structural characteristics of the truncated cone, the second washer 605 is forced to drive the spring collet 6 to produce radial contraction.

[0049] In one embodiment, for the blade 8 described above, the top of the blade 8 is located within the placement hole 303.

[0050] The tip of the blade 8 extends into the placement hole 303 of the damping plate 302, forming a barrier, which allows some of the vibration energy to be transmitted to the inner wall of the placement hole 303. The damping plate 302 uses its own damping characteristics to consume this part of the vibration energy.

[0051] Working principle: After placing the blade 8 in the annular cavity 601 of the spring collet 6, rotate the internal threaded mounting tube 5 to tighten it with the external threaded tube 4. The external threaded tube 4 applies axial pressure to several second washers 605 on the outer wall of the spring collet 6. Due to the influence of the large top and small bottom of the frustum cavity 401, the second washers 605 drive the spring collet 6 to retract radially and contact the outer wall of the blade 8. During this process, the first washers 603 and the protrusions 604 are deformed by pressure and tightly clamp the blade 8.

[0052] When the blade needs to be replaced, rotate the internal threaded mounting tube 5 in the opposite direction. The spring collet 6 will return to its elastic state, and the old blade 8 can be removed and the new blade 8 can be installed.

[0053] The elastic element 301 absorbs part of the vibration generated by the blade 8 through elastic deformation, and the cylindrical damping plate 302 dissipates the vibration energy by using damping performance. At the same time, the first gasket 603, the protrusion 604, the second gasket 605 and the annular gasket 7, made of polyurethane, absorb and buffer the vibration by utilizing their good elasticity and damping performance, reducing the transmission of vibration from the blade 8 to the tool holder 1 and the equipment.

[0054] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0055] The preferred embodiments of the utility model disclosed above are merely illustrative of the utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize it. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A shockproof engraving tool head with replaceable blades, comprising a handle (1), characterized in that: A cavity (2) is provided on the central axis inside the handle (1); The cavity (2) is provided with a top shock-absorbing mechanism (3). The top shock-absorbing mechanism (3) includes an elastic element (301). The top of the elastic element (301) is fixedly connected to the knife handle (1), and a damping plate (302) is fixedly installed at the bottom of the elastic element (301). A placement hole (303) is opened inside the damping plate (302), and the placement hole (303) faces downward. The bottom of the handle (1) is fixedly connected to an external threaded tube (4), and the internal part of the external threaded tube (4) is provided with a frustum cavity (401). An internally threaded mounting pipe (5) is installed on the outer wall of the externally threaded pipe (4); The internal threaded mounting tube (5) is equipped with a spring collet (6), and the spring collet (6) has an annular cavity (601) inside. The inner wall of the spring collet (6) is inlaid with a number of first washers (603). The inner walls of the number of first washers (603) are fixedly connected with protrusions (604) from top to bottom. The outer wall of the spring collet (6) is fixedly installed with a number of second washers (605). The annular cavity (601) is provided with a blade (8), and a circular gasket (7) is installed between the bottom of the spring collet (6) and the bottom of the inner threaded mounting tube (5).

2. The shockproof engraving tool head with replaceable blades according to claim 1, characterized in that, The first gasket (603), the protrusion (604), the several second gaskets (605) and the annular gasket (7) are all made of polyurethane.

3. The shockproof engraving tool head with replaceable blades according to claim 2, characterized in that, The spring collet (6) has a placement groove (602) for placing a plurality of the first pads (603), and the protrusion (604) protrudes from the inner wall of the spring collet (6).

4. The shockproof engraving tool head with replaceable blades according to claim 1, characterized in that, The damping plate (302) is cylindrical and is located inside the cavity (2).

5. A shockproof engraving tool head with replaceable blades according to claim 1, characterized in that, The top diameter of the frustum cavity (401) is larger than the bottom diameter, and a plurality of the second gaskets (605) are located inside the frustum cavity (401).

6. The shockproof engraving tool head with replaceable blades according to claim 1, characterized in that, The top of the blade (8) is located inside the placement hole (303).

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