A filled damping cutter bar and a machining process thereof

Abstract

The present application relates to a kind of filled damping cutter bars, including fixing part, cutter bar, tool bit and blade, cutter bar includes hard alloy rod and steel piece on hard alloy rod, damping space is left between hard alloy rod and steel piece, copper solder is plated on the surface of hard alloy rod, a plurality of increment grooves are set in the surface of hard alloy rod, copper solder is filled in increment groove, copper solder is filled in the part of damping space close to tool bit by heating mode, damping layer is formed, the problem that damping effect is poor in the actual use of existing cutter bar is solved;It also includes step one, cleaning preparation process;Step two, copper plating process;Step three, installation positioning process;Step four, heating process;Step five, cooling and cleaning process;Step five is completed, and still set up taking material process;Artificially cool and clean after cutter bar is boxed, is transported to next equipment and is processed next step.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of damping cutter production, in particular to a filling type damping cutter bar and a processing technology thereof. BACKGROUND

[0002] The damping principle of the damping cutter bar is to reduce vibration through the damping structure inside the bar body, so as to maintain the stability and precision of the cutter. A hollow damping cutter bar is disclosed in a Chinese patent application with the application publication number CN208945190U, which comprises a cutter bar body, a cutter bar clamp arranged at one end of the cutter bar body, a cutter bar seat arranged at the other end of the cutter bar body, a turning tool fixedly arranged on the cutter bar seat, and the cutter bar clamp and the cutter bar seat being connected with the cutter bar body through detachable structures respectively. The cutter bar body is a hollow structure, and a counterweight is arranged between one end of the cutter bar body and the cutter bar seat. The counterweight is made of hard alloy.

[0003] However, the inventor finds that the damping effect of the cutter bar is general in actual use, and the hollow structure inside the cutter bar is prone to breakage when machining workpieces with high hardness. SUMMARY

[0004] The purpose of the present application is to solve the problems of the above-mentioned cutter bar in actual use, that is, the damping effect is general, and the hollow structure inside the cutter bar is prone to breakage when machining workpieces with high hardness, by leaving a damping space between the hard alloy rod and the steel piece, plating copper solder on the surface of the hard alloy rod, and filling the damping space with the copper solder by heating.

[0005] In view of the above technical problems, the technical scheme adopted by the present application is as follows:

[0006] A filling type damping cutter bar comprises a fixing piece, a cutter bar, a cutter head and a cutter blade. The cutter bar comprises a hard alloy rod and a steel piece sleeved on the hard alloy rod. A damping space is left between the hard alloy rod and the steel piece. Copper solder is plated on the surface of the hard alloy rod. A plurality of increment grooves are arranged on the surface of the hard alloy rod. The increment grooves are filled with copper solder. The copper solder is melted to fill the part close to the cutter head of the damping space by heating, so as to form a damping layer.

[0007] As a preferred, one side of the increment groove close to the cutter head is arranged as an inclined surface, and the inclined surface is arranged at an angle of 60° with the left end of the damping space.

[0008] As a preferred, the distance between the hard alloy rod and the steel piece is 2-3 wires.

[0009] A processing technology of a filling type damping cutter bar comprises the following steps:

[0010] Step one, cleaning preparation process, determine the copper solder used for heating filling, and clean the surface of the hard alloy rod, and prepare the tools and materials needed for heating;

[0011] Step two, copper plating process, copper solder is plated on the surface of the hard alloy rod, and the surface of the hard alloy rod is polished flat with a polishing tool;

[0012] Step three, installation and positioning process, the tool bar is assembled on a special container and placed vertically with the tool bit downward, and a plurality of assembled tool bars are placed in the heating furnace for heating;

[0013] Step four, heating process, the tool bar is heated by the heating furnace, so that the copper solder on the surface of the hard alloy rod is melted, and the damping space is filled.

[0014] Step five, cooling and cleaning process, the heated tool bar is taken out of the heating furnace and naturally cooled to room temperature, and the opening of the damping space is cleaned after cooling.

[0015] As a preferred, in the step one, the surface of the hard alloy rod is cleaned by cleaning agent to remove grease, oxide and dirt.

[0016] As a preferred, in the step two, a part of copper flux is added when the copper solder is plated on the surface of the hard alloy rod, so that the fluidity and filling property of the melted copper solder are better, and the surface of the hard alloy rod is polished to leave a distance of 2-3 wires between the hard alloy rod and the steel part.

[0017] As a preferred, in the step four, the temperature in the furnace is heated to 1083-1090 DEG C by the heating furnace, so that the copper solder on the surface of the hard alloy rod is melted, and under the action of the increment tank, the copper solder fills the part near the tool bit of the damping space, forming a damping layer.

[0018] As a preferred, after the step five is completed, a material taking process is further provided.

[0019] As another preferred, in the material taking process, the tool bar after cooling and cleaning is boxed by artificial and transported to the next equipment for next step processing.

[0020] The beneficial effects of the present application are:

[0021] 1. In the present application, a damping space is left between the hard alloy rod and the steel part, copper solder is plated on the surface of the hard alloy rod, and the copper solder is filled in the damping space by heating, so that the filled and tight damping layer plays a damping role, which is beneficial to improve the damping effect.

[0022] 2. The application has the advantages of improving the damping effect, and is especially suitable for the technical field of damping tool production.

[0023] In summary, the device has the advantages of improving the damping effect, and is especially suitable for the technical field of damping tool production. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings described below are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0025] Figure 1 Figure 1 is a structural schematic diagram of the filling type damping tool rod;

[0026] Figure 2 Figure 2 is a sectional view of the filling type damping tool rod;

[0027] Figure 3 Figure 3 is a process flow diagram of the filling type damping tool rod. Figure 2 A is an enlarged view of A;

[0028] Figure 4 Figure 4 is an enlarged view of B; Figure 3 B;

[0029] Figure 5 Figure 5 is a process flow diagram of the filling type damping tool rod.

[0030] 1. fixing part; 2. tool rod; 3. tool head; 4. blade; 5. copper solder; 21. hard alloy rod; 22. steel part; 23. annular groove; 24. drainage groove; 241. inclined surface. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings. Embodiment one

[0032] As Figures 1 to 5As shown, a filling-type vibration damping tool holder includes a fixing member 1, a tool holder 2, a tool head 3, and a cutting blade 4. The tool holder 2 includes a cemented carbide rod 21 and a steel part 22 sleeved on the cemented carbide rod 21. A vibration damping space 23 is left between the cemented carbide rod 21 and the steel part 22. The surface of the cemented carbide rod 21 is plated with copper solder 5. Several incremental grooves 24 are formed on the surface of the cemented carbide rod 21. The incremental grooves 24 are filled with copper solder 5. By heating, the copper solder 5 melts and fills the part of the vibration damping space 23 near the tool head 3, forming a vibration damping layer.

[0033] It is worth mentioning that by leaving a damping space 23 between the carbide rod 21 and the steel part 22, and by plating copper solder 5 on the surface of the carbide rod 21, and by heating the copper solder 5 to fill the damping space 23, the tightly filled damping layer plays a damping role, which is beneficial to improving the damping effect.

[0034] like Figure 4 As shown, the incremental groove 24 is set as an inclined surface 241 on the side near the cutter head 3, and the inclined surface 241 is set at a 60° angle with the left end of the vibration damping space 23.

[0035] It is worth mentioning that by opening several incremental grooves 24 on the surface of the cemented carbide rod 21, and setting the side of the incremental groove 24 near the cutter head 3 as an inclined surface 241, and setting the inclined surface 241 at a 60° angle with the left end of the incremental groove 24, the molten copper solder 5 will flow more easily to the vibration damping space 23 near the cutter head 3 under the action of the incremental groove 24, which is beneficial to improve its fluidity and make the vibration damping space 23 near the cutter head 3 more tightly filled.

[0036] like Figure 2 , 3 As shown, there is a distance of 2-3 mils between the carbide rod 21 and the steel part 22.

[0037] In this example, by leaving a distance of 2-3 mils between the carbide rod 21 and the steel part 22, the copper solder 5 melts and forms a damping layer, thereby enabling the tool rod 2 to play a damping role.

[0038] A machining process for a filler-type vibration damping tool holder includes:

[0039] Step 1, cleaning and preparation process: determine the copper solder 5 to be used for heating and filling, clean the surface of the carbide rod 21, and prepare the tools and materials required for heating.

[0040] Step 2, copper plating process: copper solder 5 is plated onto the surface of carbide rod 21, and the surface of carbide rod 21 is polished smooth with a polishing tool.

[0041] Step three, installation positioning process, the knife bar 2 is assembled on a specific container, and is placed vertically with the cutter head direction downward, and several assembled knife bars 2 are placed in a heating furnace for heating;

[0042] Step four, heating process, the copper solder 5 on the surface of the hard alloy rod 21 is melted by heating the knife bar 2 in the heating furnace, and the damping space 23 is filled.

[0043] Step five, cooling and cleaning process, the heated knife bar 2 is taken out of the heating furnace and naturally cooled to room temperature, and the opening of the damping space 23 is cleaned after cooling.

[0044] In the step one, the surface of the hard alloy rod 21 is cleaned by the cleaning agent to remove grease, oxides and dirt.

[0045] In the step two, a part of copper flux is added while plating the copper solder 5 on the surface of the hard alloy rod 21, so that the fluidity and filling property of the melted copper solder 5 are better, and the surface of the hard alloy rod 21 is polished to leave a distance of 2-3 wires between the hard alloy rod 21 and the steel part 22.

[0046] In the present example, a part of copper flux is added while filling the copper solder 5, which helps to improve the fluidity and filling property of the molten copper and provide oxidation protection.

[0047] In the step four, the temperature in the furnace is heated to 1083-1090°C by the heating furnace, so that the copper solder 5 on the surface of the hard alloy rod 21 is melted, and under the action of the increment groove 24, the copper solder 5 fills the part of the damping space 23 close to the cutter head 3 to form a damping layer.

[0048] In the present example, the melting point of copper is about 1083°C, so the copper solder needs to be heated to near or slightly higher than this temperature.

[0049] After the completion of the step five, a material taking process is further provided.

[0050] In the material taking process, the cooled and cleaned knife bar 2 is boxed by hand and transported to the next equipment for further processing.

[0051] The working process is as follows:

[0052] The copper solder 5 used for heating and filling is determined, the surface of the hard alloy rod 21 is cleaned, and the tools and materials needed for heating are prepared, the copper solder 5 is plated on the surface of the hard alloy rod 21, and the surface of the hard alloy rod 21 is polished flat, and a part of copper flux is added while plating the copper solder 5 on the surface of the hard alloy rod 21;

[0053] The knife rod 2 is assembled on a specific container, and is placed vertically with the knife head direction downward, a plurality of assembled knife rods 2 are placed in a heating furnace, the temperature in the furnace is heated to 1083-1090 DEG C through the heating furnace, so that the copper solder 5 on the surface of the hard alloy rod 21 is melted, and the damping space 23 is filled;

[0054] The heated knife rod 2 is taken out from the heating furnace and naturally cooled to room temperature, after cooling, the opening of the damping space 23 is cleaned, and the cooled and cleaned knife rod 2 is manually packed and transported to the next equipment for further processing.

[0055] Of course, in the technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, and the term "one" cannot be understood as a limitation on the number.

[0056] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any changes or replacements that can be easily thought of by those skilled in the art under the technical hints of the present application should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A filler-type vibration damping tool bar, comprising a fixing member (1), a tool bar (2), a tool head (3), and a blade (4), characterized in that: The tool holder (2) includes a carbide rod (21) and a steel part (22) sleeved on the carbide rod (21). A vibration damping space (23) is left between the carbide rod (21) and the steel part (22). The surface of the carbide rod (21) is plated with copper solder (5). Several incremental grooves (24) are opened on the surface of the carbide rod (21). The incremental grooves (24) are filled with copper solder (5). By heating, the copper solder (5) melts and fills the part of the vibration damping space (23) near the tool head (3) to form a vibration damping layer. The side of the incremental groove (24) near the tool head (3) is set as an inclined surface (241). The inclined surface (241) is set at a 60° angle with the left end of the vibration damping space (23).

2. The filled vibration damping tool bar according to claim 1, characterized in that, A distance of 2-3 mils is left between the carbide rod (21) and the steel part (22).

3. A processing method for the filling-type vibration damping tool bar according to any one of claims 1-2, characterized in that, include: Step 1, cleaning and preparation process: determine the copper solder (5) to be used for heating and filling, clean the surface of the carbide rod (21), and prepare the tools and materials required for heating. Step 2, copper plating process, copper solder (5) is plated onto the surface of the carbide rod (21), and the surface of the carbide rod (21) is polished smooth with a polishing tool; Step 3, installation and positioning process: assemble the tool bar (2) on a specific container and place it with the vertical tool head facing down. Put several assembled tool bars (2) into the heating furnace for heating. Step four, heating process: The tool bar (2) is heated in a heating furnace to melt the copper solder (5) on the surface of the carbide rod (21) and fill the vibration damping space (23); Step 5, cooling and cleaning process: take the heated knife bar (2) out of the heating furnace and let it cool naturally to room temperature. After cooling, clean the opening of the vibration damping space (23).

4. The processing technology of a filler-type vibration damping tool bar according to claim 3, characterized in that, In step one, the surface of the carbide rod (21) is cleaned with a cleaning agent to remove grease, oxides and dirt.

5. The processing technology of a filler-type vibration damping tool bar according to claim 3, characterized in that, In step two, while plating the copper solder (5) onto the surface of the carbide rod (21), a portion of copper flux is added to improve the fluidity and filling properties of the molten copper solder (5). The surface of the carbide rod (21) is then polished to leave a distance of 2-3 mils between it and the steel part (22).

6. The processing technology of a filler-type vibration damping tool bar according to claim 3, characterized in that, In step four, the furnace temperature is heated to 1083℃-1090℃ by heating furnace, so that the copper solder (5) on the surface of the cemented carbide rod (21) melts, and under the action of the incremental groove (24), the copper solder (5) fills the part of the vibration damping space (23) near the cutter head (3) to form a vibration damping layer.

7. The processing technology of a filler-type vibration damping tool bar according to claim 3, characterized in that, After step five is completed, a material handling process is also set up.

8. The processing technology of a filler-type vibration damping tool bar according to claim 7, characterized in that, In the material handling process, the knife bar (2) after cooling and cleaning is manually packed into a box and transported to the next equipment for further processing.

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