A PCD forming tool

Abstract

The present application relates to the technical field of forming tools, and provides a PCD forming tool, which includes a tool shank part and a blade part; the tool shank includes a tool shank portion and a connecting portion; the connecting portion is installed at one end of the tool shank portion, and the connecting portion is provided with an inclined surface; a connecting groove is formed in the top surface of the connecting portion along the inclined direction of the inclined surface, and a clamping portion is provided at one end of the inclined surface close to the tool shank portion; two accommodating cavities are formed on both sides at the bottom of the connecting groove, and locking members are arranged in both accommodating cavities; the blade part includes a blade portion and a plug-in portion; the blade portion is connected to the plug-in portion, and a reserved opening is arranged between the blade portion and the plug-in portion, and the plug-in portion is matched with the connecting groove; the blade portion moves along the inclined surface and is clamped with the clamping portion; the plug-in portion moves synchronously and is inserted into the connecting groove to be connected with the locking member. The present application has the effect that the tool does not need to be rigidly connected and is convenient for assembly.

Description

Technical Field

[0001] This application relates to the technical field of forming tools, and particularly to a PCD forming tool. Background Art

[0002] PCD tools are mainly divided into integral PCD tools and welded PCD inserts in terms of structure. In recent years, welded shank PCD tools have developed rapidly in the automotive and its parts industries. For PCD tools, the welding of PCD composite sheets to carbide or steel substrates is very important. The main welding methods of PCD are as follows: laser welding, vacuum diffusion welding, vacuum brazing, high-frequency induction brazing, etc. The brazing process of PCD composite sheets is one of the key technologies restricting the application of PCD tools.

[0003] Generally, high-temperature brazing processes (brazing temperature is about 1000 °C) are mostly used for the brazing of carbide, while PCD composite sheets must be brazed at low temperature, otherwise it will cause thermal damage to the PCD composite sheets and affect their cutting performance. However, the joint strength of low-temperature brazing is often low, and it is very easy to cause desoldering during the tool processing, which will directly affect the strength of PCD welded forming tools.

[0004] When some PCD tools and PCD inserts are connected by welding, due to the rigid connection method, when the PCD composite sheet is subjected to excessive force during use, the rigid connection is prone to breakage, affecting the subsequent use safety. Summary of the Invention

[0005] In order to improve the above problems, this application provides a PCD forming tool.

[0006] The PCD forming tool provided by this application adopts the following technical solutions:

[0007] A PCD forming tool includes a tool shank part and a blade part; the tool shank includes a tool shank portion and a connecting portion; the connecting portion is installed at one end of the tool shank portion, and the connecting portion is provided with an inclined surface; a connecting groove is opened along the inclined direction of the inclined surface on the top surface of the connecting portion, and a clamping portion is provided at one end of the inclined surface close to the tool shank portion; two accommodating cavities are opened on both sides at the bottom of the connecting groove, and locking members are arranged in both accommodating cavities; the blade part includes a blade portion and a plugging portion; the blade portion is connected to the plugging portion, and a reserved opening is provided between the blade portion and the plugging portion, and the plugging portion is matched with the connecting groove; the blade portion moves along the inclined surface and is clamped with the clamping portion; the plugging portion moves synchronously and is inserted into the connecting groove to be connected with the locking member.

[0008] By adopting the above technical solution, when it is necessary to install the tool holder part and the blade part, the blade part moves along the inclined surface until the blade part moves to the clamping part and is clamped with the clamping part. The plugging part moves synchronously with the blade part. The plugging part is inserted into the connecting groove and moves along the connecting groove. When it moves to the locking part, it presses against the locking part. After the blade part is clamped with the clamping part, the plugging part is clamped with the locking part synchronously, so that the whole tool holder part and the blade part are connected to each other, and a convenient and stable connection can be achieved without using welding method.

[0009] Optionally, the locking part includes an elastic part and a wedge part; the elastic part is connected to the inner wall surface of the accommodating cavity; the wedge part is located in the accommodating cavity and is connected to the elastic part. The wedge surface of the wedge part is inclined from the notch of the connecting groove to the bottom of the connecting groove, and a locking groove is provided in the wedge part; wedge-shaped protrusions are arranged on both sides of the plugging part. When the plugging part is inserted into the connecting groove, the wedge-shaped protrusions move along the surface of the wedge part until the wedge-shaped protrusions enter the locking groove and are clamped with the wedge part.

[0010] By adopting the above technical solution, by using the elastic part to provide elastic force for the wedge part, after the wedge part is pushed by the wedge-shaped protrusion, it can retract into the accommodating cavity. Until the locking groove is aligned with the wedge-shaped protrusion, the wedge part moves towards the wedge-shaped protrusion under the action of elastic force, so that the wedge-shaped protrusion is clamped into the locking groove. The plugging part is locked in the connecting groove by using the wedge-shaped protrusion and the locking groove, and the blade part is clamped and fixed synchronously by the action of the clamping part outside the inclined surface, so that the blade part and the tool holder part are firmly connected.

[0011] Optionally, the locking part further includes a limiting part; a limiting groove is provided at the inner wall of the accommodating cavity; the wedge part is slidably connected to the limiting groove through the limiting part.

[0012] By adopting the above technical solution, the limiting part is restricted in the limiting groove and can only move along the limiting groove, so as to limit the position of the wedge part, which can avoid the position deviation of the wedge part when it is pushed by the wedge-shaped protrusion, and improve the fixed-point movement and stability of the wedge part during the movement process.

[0013] Optionally, the locking part further includes a locking portion; the locking portion is located at one end of the wedge part close to the notch of the connecting groove and extends in a direction away from the elastic part; the locking portion is clamped with the plugging part.

[0014] By adopting the above technical solution, the secondary locking effect is provided by the locking part and the plugging part, which further improves the stability between the plugging part and the connecting groove.

[0015] Optionally, one end of the locking portion close to the plugging part is a hemispherical arc surface.

[0016] By adopting the above technical solution, when the locking part is pushed by the wedge-shaped protrusion by using the arc surface, it can adapt to different force directions, avoiding the wedge-shaped protrusion from being stuck and unable to continue moving towards the bottom of the connection groove.

[0017] Optionally, the insertion part has three sections. A section close to the bottom of the connection groove is provided with the wedge-shaped protrusion, a section close to the opening of the connection groove is provided with a fitting part, and a fitting groove matching the locking part is formed on the fitting part. The fitting part is clamped with the locking part through the fitting groove; the middle section between the fitting part and the wedge-shaped protrusion is a hollow section.

[0018] By adopting the above technical solution, when the insertion part is inserted into the connection groove, the wedge-shaped protrusion first moves along the connection groove. When it moves to the locking part, it pushes the locking part towards the elastic part until the wedge-shaped protrusion disengages from the locking part, causing the locking part to reset to the hollow section. As the wedge-shaped protrusion contacts the wedge part, it then pushes the wedge part towards the elastic part, and the locking part moves along the accommodation cavity or the limiting groove again until the wedge-shaped protrusion moves to the locking groove and the locking part is flush with the fitting groove, so that the wedge-shaped protrusion is clamped with the locking groove and the locking part is clamped with the fitting groove. Through the two clamping effects, the installation stability of the insertion part and the connection groove is ensured.

[0019] Optionally, a buffer layer is provided on the fitting part.

[0020] By adopting the above technical solution, the buffer layer is mainly used to provide the compression resistance and buffering ability of the fitting part. When the blade part is under excessive pressure during use, it will exert pressure on the fitting part and the connecting part. If the fitting part and the connecting part are in direct rigid contact, it is easy to break the fitting part. Therefore, after setting the buffer layer, the buffer force can be increased, and the force when the fitting part contacts the connecting part can be dispersed and offset to protect the fitting part and reduce the situation of breaking due to excessive force.

[0021] Optionally, it further includes an adsorbent; the adsorbent is connected to the handle part; the wedge part is further provided with a magnetic attraction part; the adsorbent is magnetically connected to the magnetic attraction part, and the magnetic force of the adsorbent is greater than the elastic force of the elastic part.

[0022] By adopting the above technical solution, when the blade part is worn or damaged, the blade part can be separated from the handle part for replacing with a new blade part. When replacement is needed, due to the clamping state between the wedge part and the insertion part, the insertion part cannot be separated from the connection groove. Therefore, the adsorbent and the magnetic attraction part are provided to separate the clamping state between the wedge part and the insertion part.

[0023] Optionally, the adsorbent and the handle part are detachably connected.

[0024] By adopting the above technical solution, the adsorption part can be conveniently connected to the handle part through a detachable connection, while not affecting the use of the handle part in daily processes, and also preventing the adsorption part from being lost, which would affect the subsequent replacement of the blade part and prevent the adsorption effect from being provided.

[0025] Optionally, a snap-in groove is provided on the inclined surface, and the blade portion is plugged into the snap-in groove.

[0026] By adopting the above technical solution, the clamping groove can provide a limiting effect for the blade portion, so that each direction of the blade portion is limited, further avoiding deviation during use.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. When the handle and the blade need to be installed, the blade moves along the inclined surface until the blade moves to the clamping portion and clamps with the clamping portion, and the plug-in portion moves synchronously with the blade, and the plug-in portion is inserted into the connecting groove and moves along the connecting groove, and when it moves to the locking member, it presses against the locking member, and when the blade is clamped with the clamping portion, the plug-in portion is clamped with the locking member synchronously, so that the handle and the blade are connected to each other, and a convenient and stable connection can be achieved without welding;

[0029] 2. The elastic part is used to provide elastic force to the wedge-shaped part, so that the wedge-shaped part can be retracted into the accommodating cavity after being pushed by the wedge-shaped protrusion, until the locking groove is consistent with the wedge-shaped protrusion, and the wedge-shaped part is moved toward the wedge-shaped protrusion by the elastic force, so that the wedge-shaped protrusion is clamped into the locking groove, and the plug-in part is locked in the connecting groove by the wedge-shaped protrusion and the locking groove, and the blade part is synchronously clamped and fixed by the clamping part outside the inclined surface, so that the blade part and the handle part are firmly connected;

[0030] 3. When the plug-in part is inserted into the connecting groove, the wedge-shaped protrusion first moves along the connecting groove. When it moves to the locking part, the locking part is pushed toward the elastic part until the wedge-shaped protrusion is separated from the locking part, so that the locking part is reset to the hollow section. As the wedge-shaped protrusion contacts the wedge-shaped part, the wedge-shaped part is pushed toward the elastic part, and the locking part moves along the accommodating cavity or the limiting groove again until the wedge-shaped protrusion moves to the locking groove. The locking part is flush with the fitting groove, so that the wedge-shaped protrusion is engaged with the locking groove, and the locking part is engaged with the fitting groove. The two-point engagement effect ensures the stable installation of the plug-in part and the connecting groove.

[0031] 4. When the blade is worn or damaged, the blade can be separated from the handle to be replaced with a new one. When replacement is needed, due to the clamping state between the wedge-shaped part and the plug-in part, the plug-in part cannot be separated from the connecting groove. Therefore, an adsorption part and a magnetic part are provided to separate the clamping state between the wedge-shaped part and the plug-in part. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is the first three-dimensional structure schematic diagram of the forming tool in an embodiment of the present application;

[0033] Figure 2 It is the first cross-sectional structure schematic diagram of the connecting part in some embodiments of the present application;

[0034] Figure 3 It is the side view structure schematic diagram of the blade part in some embodiments of the present application;

[0035] Figure 4 It is the second cross-sectional structure schematic diagram of the connecting part in some embodiments of the present application;

[0036] Figure 5 It is the third cross-sectional structure schematic diagram of the connecting part in some embodiments of the present application;

[0037] Figure 6 It is the first cross-sectional structure schematic diagram of the change state of the connecting part in some embodiments of the present application;

[0038] Figure 7 It is the second cross-sectional structure schematic diagram of the change state of the connecting part in some embodiments of the present application;

[0039] Figure 8 It is the second three-dimensional structure schematic diagram of the forming tool in some embodiments of the present application;

[0040] Figure 9 It is the fourth cross-sectional structure schematic diagram of the connecting part in some embodiments of the present application;

[0041] Figure 10 It is the three-dimensional structure schematic diagram of the connecting part and the blade part in some embodiments of the present application;

[0042] Figure 11 It is the top view structure schematic diagram of the clamping state of the blade part and the clamping groove in some embodiments of the present application;

[0043] The reference signs in the drawings are: 1. Handle part, 11. Handle portion, 12. Connecting part, 13. Clamping part, 121. Inclined surface, 122. Connecting groove, 123. Accommodating cavity, 124. Limiting groove, 125. Clamping groove, 2. Blade part, 21. Blade portion, 22. Insertion part, 221. Wedge-shaped protrusion, 222. Fitting groove, 23. Reserved opening, 24. Fitting part, 241. Buffer layer, 3. Locking part, 31. Elastic part, 32. Wedge-shaped part, 321. Locking groove, 33. Limiting part, 34. Locking portion, 35. Magnetic attracting part, 4. Magnetic attracting member. Detailed implementation manners

[0044] The following describes the embodiments of the present application through specific specific examples. Those skilled in the art can easily understand other advantages and effects of the present application from the information disclosed in the present application. The present application can also be implemented or applied through other different specific embodiments. The details in the present application can also be modified or changed according to different viewpoints and application systems without departing from the spirit of the present application. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0045] The following takes the drawings as a reference and details the embodiments of the present application so that those skilled in the technical field to which the present application belongs can easily implement it. The present application can be embodied in many different forms and is not limited to the embodiments described herein.

[0046] In the description of the present application, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc., mean that the specific features, structures, materials, or characteristics represented in connection with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials, or characteristics represented can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples represented in the present application and the features of different embodiments or examples.

[0047] In addition, the terms "first" and "second" are only used for indication purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include at least one of such features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0048] Throughout the specification, when it is said that a device is "connected" to another device, this includes not only the case of "direct connection", but also the case of "indirect connection" in which other elements are placed therebetween. In addition, when it is said that a certain device "includes" a certain component, unless there is a particularly contrary record, it does not exclude other components, but means that other components can also be included.

[0049] The following combines the attached Figure 1 - attached Figure 11 , and further details the present application.

[0050] The embodiments of the present application disclose a PCD forming tool.

[0051] A PCD forming tool, referring to Figure 1, including a handle member 1 and a blade member 2; the handle includes a handle portion 11 and a connecting portion 12; the connecting portion 12 is installed at one end of the handle portion 11, and the connecting portion 12 is provided with an inclined surface 121; the handle portion 11 can be in the shape of a rectangular strip, the connecting portion 12 is installed at the top end of the handle portion 11, the connecting portion 12 can be a T-shaped block, and an inclined surface 121 is opened on the right side (the right side in the figure) of the T-shaped block, and this inclined surface 121 is used to install the blade member 2.

[0052] A connecting groove 122 is opened on the top surface of the connecting portion 12 along the inclined direction of the inclined surface 121. A clamping portion 13 is provided at one end of the inclined surface 121 close to the handle portion 11. The connecting groove 122 is also inclined, and the inclination is parallel to the inclined surface 121. The clamping portion 13 is provided at the bottom end of the outer wall of the inclined surface 121. The clamping portion 13 can be in the shape of an inverted hook and is used to clamp the blade member 2 to limit the outer surface of the blade member 2.

[0053] Reference Figure 2 As shown, two accommodating cavities 123 are opened on both sides at the bottom of the groove of the connecting groove 122. Locking members 3 are provided in both accommodating cavities 123, that is, there are two locking members 3, which are respectively located in the two accommodating cavities 123. The locking members 3 can be locking blocks with reset elasticity.

[0054] Reference Figure 3 As shown, the blade member 2 includes a blade portion 21 and a plugging portion 22; the blade portion 21 is connected to the plugging portion 22, and a reserved opening 23 is provided between the blade portion 21 and the plugging portion 22. The length of the reserved opening 23 is the same as the length from the notch of the connecting groove 122 to the end of the inclined surface 121. The plugging portion 22 matches the connecting groove 122. The blade portion 21 is a PCD composite sheet, and hereinafter it is simply referred to as the blade portion 21.

[0055] The plugging portion 22 can be a plugging plate or a plugging frame. The plugging portion 22 and the blade portion 21 can be fixedly connected, and the plugging portion 22 and the blade portion 21 are parallel to each other. When installation is required, the plugging portion 22 moves closely along the connecting groove 122, and the blade portion 21 moves closely along the inclined surface 121. The reserved opening 23 is the space for the part of the connecting portion 12 located between the plugging portion 22 and the blade portion 21 to be inserted when the plugging portion 22 is inserted into the connecting groove 122.

[0056] Specifically, when it is necessary to install the handle member 1 and the blade member 2, the blade portion 21 moves along the inclined surface 121 until the blade portion 21 moves to the clamping portion 13 and is clamped with the clamping portion 13. The plugging portion 22 moves synchronously with the blade portion 21. The plugging portion 22 is inserted into the connecting groove 122 and moves along the connecting groove 122. When it moves to the locking member 3, it presses against the locking member 3. After the blade portion 21 is clamped with the clamping portion 13, the plugging portion 22 is synchronously clamped with the locking member 3, so that the overall handle member 1 and the blade member 2 are connected to each other, and a firm connection can be achieved without using welding.

[0057] Further, referring to Figure 2 and Figure 4 as shown, the locking member 3 includes an elastic portion 31 and a wedge portion 32; the elastic portion 31 is connected to the inner wall surface of the accommodation cavity 123. The elastic portion 31 can be a compression spring, which is located in the accommodation cavity 123 to provide elastic force supply.

[0058] The wedge portion 32 is located in the accommodation cavity 123 and is connected to the elastic portion 31. The wedge surface of the wedge portion 32 inclines from the notch of the connection groove 122 to the bottom of the connection groove 122. And a locking groove 321 is formed in the wedge portion 32. The wedge portion 32 can be a wedge plate or a wedge block. After the wedge portion 32 is connected to the elastic portion 31, the elastic portion 31 provides an elastic force for the wedge portion 32 to move towards the connection groove 122.

[0059] Wedge-shaped protrusions 221 are arranged on both sides of the insertion portion 22. When the insertion portion 22 is inserted into the connection groove 122, the wedge-shaped protrusions 221 move towards the bottom of the connection groove 122. Due to the action of the elastic portion 31 on the wedge portion 32, the wedge portion 32 is located in the connection groove 122 to block the insertion portion 22 from moving towards the bottom of the connection groove 122.

[0060] When the insertion portion 22 continues to move under the action of force, the wedge-shaped protrusions 221 move along the surface of the wedge portion 32. During the movement, the wedge portion 32 will be pushed along the accommodation cavity 123 towards the elastic portion 31. The insertion portion 22 abuts against the bottom of the connection groove 122. When the wedge-shaped protrusions 221 move to the locking groove 321 on the wedge portion 32, the wedge-shaped protrusions 221 and the wedge portion 32 are in a hollow state. After the wedge portion 32 loses the push of the wedge-shaped protrusions 221, it moves along the accommodation cavity 123 towards the insertion portion 22 under the action of the elastic force of the elastic portion 31, so that the wedge-shaped protrusions 221 are snapped into the locking groove 321, thus completing the clamping connection between the insertion portion 22 and the wedge portion 32.

[0061] By using the elastic portion 31 to provide elastic force for the wedge portion 32, when the wedge portion 32 is pushed by the wedge-shaped protrusions 221, it can retract into the accommodation cavity 123. Until the locking groove 321 is aligned with the wedge-shaped protrusions 221, the wedge portion 32 moves towards the wedge-shaped protrusions 221 under the action of the elastic force, so that the wedge-shaped protrusions 221 are snapped into the locking groove 321. The insertion portion 22 is locked in the connection groove 122 by the wedge-shaped protrusions 221 and the locking groove 321, and the blade portion 21 is synchronously clamped and fixed under the action of the clamping portion 13 outside the inclined surface 121, so that the blade member 2 is firmly connected to the handle member 1.

[0062] Furthermore, referring to Figure 5As shown, the locking member 3 further includes a limiting portion 33; a limiting groove 124 is formed in the inner wall at the accommodating cavity 123; the wedge portion 32 is slidably connected to the limiting groove 124 through the limiting portion 33. The limiting portion 33 can be a limiting block, and the limiting groove 124 can be a special-shaped groove, such as a T-shaped groove, an I-shaped groove or an inverted triangular groove, etc. The shape of the corresponding limiting block matches the shape of the inner groove of the limiting groove 124.

[0063] The limiting portion 33 is connected to the wedge portion 32, so that the limiting portion 33 is restricted within the limiting groove 124 and can only move along the limiting groove 124, so as to limit the position of the wedge portion 32, and avoid the position of the wedge portion 32 shifting under the push of the wedge protrusion 221, so as to improve the fixed-point movement of the wedge portion 32 and the stability of the movement process.

[0064] In some embodiments, as shown in Figure 6 As shown, the locking member 3 further includes a locking portion 34; the locking portion 34 is located at the notch end of the wedge portion 32 close to the connecting groove 122 and extends away from the elastic portion 31. The locking portion 34 is snap-connected to the inserting portion 22. The locking portion 34 can be a locking column, a locking frame or a locking plate.

[0065] Divided by the top and bottom ends of the wedge portion 32, the top end of the wedge portion 32 is close to the notch of the connecting groove 122, the bottom end of the wedge portion 32 is close to the bottom of the connecting groove 122, and the length of the top end of the wedge portion 32 is less than the length of the bottom end, so that a wedge surface or an inclined surface is formed from the top end to the bottom end of the wedge portion 32. The installation position of the locking portion 34 is located at the top end of the wedge portion 32.

[0066] At the same time, the length of the locking portion 34 extending out of the wedge surface is equal to the vertical position of the bottom end or longer than the length of the bottom of the wedge surface, so that the locking portion 34 and the inserting portion 22 can provide a secondary locking effect.

[0067] For example, a socket is formed on the inserting portion 22. When the wedge protrusion 221 moves to the locking groove 321, the socket synchronously moves to a position horizontal to the locking portion 34. When the wedge portion 32 moves towards the inserting portion 22 under the elastic force of the elastic portion 31, the wedge protrusion 221 is snap-connected to the locking groove 321, and the locking portion 34 is inserted into the socket, also playing a snap-connection effect.

[0068] Wherein, one end of the locking portion 34 close to the inserting portion 22 is a hemispherical arc surface, so that when the wedge protrusion 221 moves to the locking portion 34, the wedge protrusion 221 can push the locking portion 34 along the arc surface, so that the locking portion 34 drives the wedge portion 32 to move towards the elastic portion 31 until the locking portion 34 disengages from the wedge protrusion 221, and then the wedge protrusion 221 contacts the wedge surface of the wedge portion 32. The arc surface enables the locking portion 34 to adapt to different force directions when being pushed by the wedge protrusion 221, and avoids the wedge protrusion 221 from being stuck and unable to continue moving towards the bottom of the connecting groove 122.

[0069] Further, referring to Figure 7 As shown, the insertion part 22 is divided into three sections. A wedge-shaped protrusion 221 is provided at a section close to the bottom of the connection groove 122, and a fitting part 24 is provided at a section close to the opening of the connection groove 122. The fitting part 24 is snap-fitted with the locking part 34; the middle section between the fitting part 24 and the wedge-shaped protrusion 221 is a hollow section. After setting the hollow section, when the insertion part 22 descends along the connection groove 122, it will not be stuck by the locking part 34, and at the same time, the length of the locking part 34 is not limited to being flush with the vertical position at the bottom end or longer than the length of the bottom of the wedge surface.

[0070] At the same time, the fitting part 24 matches the opening of the connection groove 122, so that when the insertion part 22 moves to the bottom of the connection groove 122, the fitting part 24 blocks the opening of the connection port, preventing sundries from entering the connection groove 122. A fitting groove 222 for inserting the locking part 34 and matching the size and shape of the locking part 34 is provided on the fitting part 24.

[0071] The setting of the wedge-shaped protrusion 221 is basically the same as that in the above embodiment, and will not be repeated here.

[0072] Specifically, when the insertion part 22 is inserted into the connection groove 122, the wedge-shaped protrusion 221 first moves along the connection groove 122. When it moves to the locking part 34, it pushes the locking part 34 towards the elastic part 31 until the wedge-shaped protrusion 221 disengages from the locking part 34, causing the locking part 34 to reset to the hollow section. As the wedge-shaped protrusion 221 contacts the wedge part 32, it then pushes the wedge part 32 towards the elastic part 31, and the locking part 34 moves along the accommodation cavity 123 or the limiting groove 124 again until the wedge-shaped protrusion 221 moves to the locking groove 321 and the locking part 34 is flush with the fitting groove 222, so that the wedge-shaped protrusion 221 is snap-fitted with the locking groove 321 and the locking part 34 is snap-fitted with the fitting groove 222. Through the two snap-fitting effects, the installation stability of the insertion part 22 and the connection groove 122 is ensured.

[0073] Further, a buffer layer 241 is provided on the fitting part 24, and the buffer layer 241 can be made of a rubber material layer or a plastic material layer.

[0074] The main function of the buffer layer 241 is to provide the compression resistance and buffering ability of the fitting part 24. When the blade part 21 is under excessive pressure during use, the fitting part 24 and the connection part 12 will be compressed. If the fitting part 24 and the connection part 12 are in direct rigid contact, it is easy to break the fitting part 24. Therefore, after setting the buffer layer 241, the buffer force can be increased, and the force when the fitting part 24 contacts the connection part 12 can be dispersed and offset to protect the fitting part 24 and reduce the situation of breaking due to excessive force.

[0075] In some embodiments, referring to Figure 8As shown in the figure, it further includes an adsorbing member 4; the adsorbing member 4 is connected to the tool handle member 1; the wedge portion 32 is further provided with a magnetic attracting portion 35; the adsorbing member 4 is magnetically connected to the magnetic attracting portion 35, and the magnetic force of the adsorbing member 4 is greater than the elastic force of the elastic portion 31. The adsorbing member 4 can be a permanent magnet, and the number of permanent magnets is two, which are respectively used to separate the two locking members 3. The magnetic attracting portion 35 can be made of a magnetic attracting block or a magnetic attracting ring made of a ferromagnetic metal or a metal material that can be magnetically attracted.

[0076] When the blade member 2 is worn or damaged, the blade member 2 can be separated from the tool handle member 1 for replacing with a new blade member 2. When replacement is needed, due to the clamping state of the wedge portion 32 and the insertion portion 22, the insertion portion 22 cannot be separated from the connection groove 122. Therefore, the adsorbing member 4 and the magnetic attracting portion 35 are provided to separate the clamping state of the wedge portion 32 and the insertion portion 22.

[0077] The magnetic attracting portion 35 can be arranged at the end where the wedge portion 32 contacts the elastic portion 31. When it is necessary to separate the insertion portion 22 from the wedge portion 32, the adsorbing member 4 is placed on the outer wall of the connecting portion 12 close to the magnetic attracting portion 35. The magnetic attraction force of the adsorbing member 4 is greater than the elastic force provided by the elastic portion 31, so that the magnetic attracting portion 35 is attracted by the adsorbing member 4 to drive the wedge portion 32 to move along the accommodating cavity 123 or the limiting groove 124 towards the elastic portion 31 and squeeze the elastic portion 31.

[0078] During the movement of the wedge portion 32, the wedge protrusion 221 is separated from the locking groove 321, and the locking portion 34 is separated from the fitting groove 222. The insertion portion 22 loses the locking effect of the locking portion 34 and the locking groove 321, and can be pulled out along the connection groove 122, and the blade portion 21 is separated from the engaging portion 13, so as to detach the blade member 2 as a whole from the tool handle member 1, facilitating the replacement of the blade member 2.

[0079] Furthermore, the detachable connection between the adsorbing member 4 and the tool handle member 1 can be a screw connection. For example, at the end of the tool handle member 1 away from the connecting portion 12, that is, at the bottom of the tool handle member 1, a threaded groove is provided, and a threaded rod is provided on the adsorbing member 4. The threaded rod is screwed into the threaded groove of the tool handle member 1 to achieve stable installation. When the adsorbing member 4 needs to be used, the adsorbing member 4 is rotated to separate it from the threaded groove.

[0080] The detachable connection method enables the adsorbing member 4 to be conveniently connected to the tool handle member 1, and at the same time does not affect the use of the tool handle member 1 in the daily process, and also prevents the loss of the adsorbing member 4, which may affect the adsorption effect when the blade member 2 needs to be replaced subsequently.

[0081] In some embodiments, refer to Figure 10 and Figure 11As shown, the inclined surface 121 is provided with a clamping groove 125. The blade part 21 is in an I-shaped sheet structure. The blade part 21 is inserted into the clamping groove 125. After the inclined surface 121 is provided with the clamping groove 125, the blade part 21 can be inserted into the clamping groove 125.

[0082] The blade part 21 can adopt an I-shaped sheet structure or a single sheet structure. When adopting an I-shaped sheet structure, the centers of both sides of the blade part 21 are hollowed out, so that the connecting part 12 at the clamping groove 125 is stuck at the hollowed-out positions at the centers of both sides of the blade part 21, thus realizing the limiting effect. The attached drawings of this embodiment take the I-shaped sheet structure as an example.

[0083] If a single sheet structure is adopted, the blade part 21 is directly inserted into the clamping groove 125 and reaches the bottom of the clamping groove 125 to limit the blade part 21. Compared with the I-shaped sheet structure, the single sheet structure can save more consumables. Compared with the single sheet structure, the I-shaped sheet structure has an increased thickness and a longer service life.

[0084] The embodiments of this specific implementation manner are all preferred embodiments of this application, and do not limit the protection scope of this application accordingly. The same components are denoted by the same reference numerals. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A PCD forming tool, comprising a tool shank member (1) and a blade member (2); the tool shank includes a tool shank portion (11) and a connecting portion (12); the connecting portion (12) is mounted at one end of the tool shank portion (11), and the connecting portion (12) is provided with an inclined surface (121), characterized in that, A connecting groove (122) is formed in the top surface of the connecting portion (12) along the inclination direction of the inclined surface (121). A clamping portion (13) is arranged at one end of the inclined surface (121) close to the handle portion (11). The clamping portion (13) has an inverted hook-shaped structure and is used for clamping the blade member (2) to limit the outer surface of the blade member (2). At the bottom of the connecting groove (122), two accommodating cavities (123) are formed on both sides. Locking members (3) are arranged in both accommodating cavities (123). The blade member (2) includes a blade portion (21) and a plugging portion (22). The blade portion (21) is connected to the plugging portion (22), and a reserved opening (23) is arranged between the blade portion (21) and the plugging portion (22). The plugging portion (22) is matched with the connecting groove (122). When the plugging portion (22) is inserted into the connecting groove (122), the portion of the connecting portion (12) between the connecting groove (122) and the inclined surface (121) is limited in the reserved opening (23). The blade portion (21) moves along the inclined surface (121) and is clamped with the clamping portion (13). The plugging portion (22) moves synchronously and is inserted into the connecting groove (122) to be connected with the locking member (3). The locking member (3) includes an elastic portion (31) and a wedge portion (32). The elastic portion (31) is connected to the inner cavity wall surface of the accommodating cavity (123). The wedge portion (32) is located in the accommodating cavity (123) and is connected to the elastic portion (31). The wedge surface of the wedge portion (32) inclines from the notch of the connecting groove (122) to the bottom of the connecting groove (122), and a locking groove (321) is formed in the wedge portion (32). Wedge-shaped protrusions (221) are arranged on both sides of the plugging portion (22). When the plugging portion (22) is inserted into the connecting groove (122), the wedge-shaped protrusions (221) move along the surface of the wedge portion (32) until the wedge-shaped protrusions (221) enter the locking groove (321) and are clamped with the wedge portion (32). The locking member (3) further includes a locking portion (34). The locking portion (34) is located at one end of the wedge portion (32) close to the notch of the connecting groove (122) and extends in a direction away from the elastic portion (31). The locking portion (34) is clamped with the plugging portion (22). An adsorbing member (4) is further included. The adsorbing member (4) is connected to the handle member (1). The wedge portion (32) is further provided with a magnetic attracting portion (35). The adsorbing member (4) is magnetically connected to the magnetic attracting portion (35), and the magnetic force of the adsorbing member (4) is greater than the elastic force of the elastic portion (31).

2. The PCD forming tool according to claim 1, wherein, The locking member (3) further includes a limiting portion (33). A limiting groove (124) is formed in the inner wall of the accommodating cavity (123). The wedge portion (32) is slidably connected to the limiting groove (124) through the limiting portion (33).

3. A PCD formed cutting tool according to claim 2, wherein, One end of the locking portion (34) close to the plugging portion (22) is a hemispherical arc surface.

4. A PCD forming tool according to claim 3, characterized in that, The plugging part (22) is divided into three sections. A wedge-shaped protrusion (221) is provided at a section near the bottom of the connecting groove (122), and a fitting part (24) is provided at a section near the notch of the connecting groove (122). A fitting groove (222) matching the locking part (34) is formed on the fitting part (24), and the fitting part (24) is clamped with the locking part (34) through the fitting groove (222); the middle section between the fitting part (24) and the wedge-shaped protrusion (221) is a hollow section.

5. A PCD forming tool according to claim 4, characterized in that, A buffer layer (241) is provided on the fitting part (24).

6. A PCD forming tool according to claim 1, characterized in that, The adsorbing part (4) and the tool handle part (1) are detachably connected.

7. A PCD forming tool according to claim 1, characterized in that, A clamping groove (125) is formed at the inclined surface (121), and the blade part (21) is inserted into the clamping groove (125).

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