Machining device for spiral groove of hard alloy drill bit

Abstract

The invention discloses a machining device for a spiral groove of a hard alloy drill bit, and belongs to the technical field of drill bit machining. A machining device for a spiral groove of a hard alloy drill bit comprises a bottom plate and further comprises an installation column fixedly connected to the bottom plate, a connecting column is fixedly connected to the installation column, a limiting block is fixedly connected to the top of the connecting column, a limiting hole is formed in the limiting block, and the outer diameter of the inner wall of the limiting hole is the same as that of the alloy drill bit to be machined; the mounting box is fixedly connected to the top of the bottom plate, and a machining part used for machining alloy is arranged on the mounting box; in the groove milling process, a limiting block is used for supporting an alloy bar, gaps in the bottom of the alloy bar are reduced, vibration of the alloy bar during machining is reduced, the machining stability is improved, and the precision of a machined alloy drill bit is improved; during processing, the bending deformation of the alloy bar can be effectively avoided, and the condition that the alloy bar is broken when a thinner alloy bar is processed is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of drill bit processing, and particularly relates to a processing device for the spiral groove of a cemented carbide drill bit. Background Art

[0002] During drill bit processing, a turning and milling process needs to be performed on the spiral groove of the drill bit.

[0003] In the prior art, a four-axis horizontal milling machine is usually used to turn and mill the drill bit. The tail end of the drill bit is clamped by the claw chuck of the horizontal spindle box, and then the center of the front end of the drill bit is abutted by the top cone on the tailstock. Then, the horizontal spindle is started to drive the drill bit to rotate and move horizontally, and the displaced drill bit is milled by the milling cutter device on the machine tool to machine a spiral groove on the side of the drill bit. During the above processing method, since the processed position of the drill bit is suspended, when the milling cutter machines it, the drill bit itself will generate strong vibrations, thereby reducing the processing accuracy. Moreover, when processing a thinner drill bit, it is easy to cause the drill bit to break. To solve the above problems, a processing device for the spiral groove of a cemented carbide drill bit is proposed here. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that the drill bit is prone to break during processing in the prior art, and to propose a processing device for the spiral groove of a cemented carbide drill bit.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A processing device for the spiral groove of a cemented carbide drill bit includes a bottom plate, and further includes: a mounting column fixedly connected to the bottom plate, a connecting column fixedly connected to the mounting column, a limiting block fixedly connected to the top of the connecting column, a limiting hole opened in the limiting block, and the inner wall of the limiting hole has the same outer diameter as the cemented carbide drill bit to be processed; a mounting box fixedly connected to the top of the bottom plate, a processing part for processing the alloy is arranged on the mounting box; a fixing part for fixing the alloy, movably arranged on the bottom plate; a driving part arranged on the mounting box for driving the fixing part to move.

[0007] To facilitate the processing of the alloy bar, preferably, the processing part includes a mounting guide rail fixedly connected to the inner wall of the top of the mounting box, a mounting frame slidably connected to the mounting guide rail, an electric telescopic rod fixedly connected to the mounting frame, a driving seat fixedly connected to the output end of the electric telescopic rod, a milling cutter for drilling and milling the spiral groove fixedly connected to the bottom of the driving seat, a second lead screw rotatably connected to the mounting guide rail, the second lead screw is threadedly connected to the mounting frame, and a third motor is fixedly connected to the outer wall of the mounting box, and the output end of the third motor is fixedly connected to the second lead screw.

[0008] Preferably, two sets of the limiting blocks are provided, the two sets of the limiting holes are coaxial, and a space for the milling cutter to process the alloy is provided between the two sets of the limiting blocks.

[0009] Preferably, one set of the limiting blocks is provided, and a processing groove hole communicating with the limiting hole is formed at the top of the limiting block.

[0010] To facilitate the fixation of the alloy rod, preferably, the fixing portion includes a mounting seat, a supporting wheel is rotatably connected to the bottom of the mounting seat, and a three-jaw chuck for fixing the alloy is rotatably connected to the mounting seat.

[0011] Preferably, a supporting seat is fixedly connected to the mounting seat, a semi-circular groove is formed in the supporting seat, and a roller is rotatably connected in the groove, and the roller abuts against the side wall of the three-jaw chuck.

[0012] To facilitate the driving of the alloy rod to rotate and translate, preferably, the driving portion includes a threaded cylinder rotatably connected to the inner wall of the mounting box, a first lead screw is threadedly connected to the threaded cylinder, the first lead screw is fixedly connected to the mounting seat, a limiting telescopic rod is fixedly connected to the inner wall of the mounting box, an output end of the limiting telescopic rod is fixedly connected to the mounting seat, a second motor is fixedly connected to the inner wall of the mounting box, an output shaft of the second motor is synchronously rotated with the threaded cylinder through a second gear set, a first motor is fixedly connected to the mounting seat, and an output shaft of the first motor is synchronously rotated with the three-jaw chuck through a first gear set.

[0013] Preferably, it further includes: a water tank fixedly connected to the bottom of the bottom plate, a through hole communicating with the water tank is formed in the bottom plate; a water pump fixedly connected to the top of the bottom plate, a water inlet pipe extending into the water tank is fixedly connected to an input end of the water pump; a flow dividing box fixedly connected to the side wall of the limiting block, a control valve is arranged on the flow dividing box, a drain pipe communicating with the flow dividing box is fixedly connected to an output end of the water pump; a flow dividing cavity is formed in the limiting block, the flow dividing cavity is communicated with an output end of the flow dividing box, and a plurality of groups of water spraying holes are formed in an inner wall of the limiting hole.

[0014] To facilitate the recycling of waste metal, preferably, an inclined filter plate is fixedly connected in the water tank, and a storage box for receiving waste materials is inserted into the water tank.

[0015] Preferably, a slide rail is fixedly connected to the mounting box, and a box door is slidably connected to the slide rail.

[0016] Compared with the prior art, the present invention provides a processing device for a spiral groove of a cemented carbide drill bit, and has the following beneficial effects:

[0017] 1. The processing device for the spiral groove of the cemented carbide drill bit supports the alloy rod by using a limit block during the milling groove process, reducing the gap at the bottom of the alloy rod, thereby reducing the vibration of the alloy rod during processing, improving the processing stability and the accuracy of the processed cemented carbide drill bit. Moreover, due to the support at the bottom of the alloy rod, the bending deformation of the alloy rod can be effectively avoided during processing, and the fracture of the alloy rod can be avoided when processing a thinner alloy rod.

[0018] 2. The processing device for the spiral groove of the cemented carbide drill bit has two processing methods. One is to drive the milling cutter to move, which is convenient for processing large workpieces. The other is to drive the alloy rod to move, which is suitable for processing small and complex workpieces. Thus, it is convenient to select the corresponding processing method according to the model of the processed drill bit, so as to achieve the flexibility and diversity of processing.

[0019] 3. The processing device for the spiral groove of the cemented carbide drill bit, through the design of the support seat and the groove, the roller in the groove abuts against the side wall of the three-jaw chuck and cooperates with the support wheel to act as an additional support point. When the alloy rod moves left and right, the support seat and the roller provide additional stability, reducing the swaying and offset of the alloy rod, thereby improving the stability and processing accuracy during the processing process.

[0020] 4. The processing device for the spiral groove of the cemented carbide drill bit, under the restriction of the hole wall of the limit hole, the coolant can only flow in the spiral groove, thereby increasing the pressure of the coolant inside the spiral groove, flushing away the metal chips inside the spiral groove, improving the accuracy of secondary milling and reducing the wear of the milling cutter by the iron chips. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic three-dimensional structure of a processing device for the spiral groove of a cemented carbide drill bit proposed by the present invention Figure 1 ;

[0022] Figure 2 is a schematic three-dimensional structure of a processing device for the spiral groove of a cemented carbide drill bit proposed by the present invention Figure 2 ;

[0023] Figure 3 is a schematic three-dimensional cross-section of a processing device for the spiral groove of a cemented carbide drill bit proposed by the present invention Figure 1 ;

[0024] Figure 4 is a schematic three-dimensional cross-section of a processing device for the spiral groove of a cemented carbide drill bit proposed by the present invention Figure 2 ;

[0025] Figure 5 is a processing device for the spiral groove of a cemented carbide drill bit proposed by the present invention Figure 4Schematic diagram of part A

[0026] Figure 6 Stereoscopic cross-section of a processing device for the spiral groove of a cemented carbide drill bit proposed by the present invention Figure 3 ;

[0027] Figure 7 Schematic diagram of the structure of the support base of a processing device for the spiral groove of a cemented carbide drill bit proposed by the present invention

[0028] In the figure: 1, bottom plate; 2, mounting column; 3, connecting column; 4, limiting block; 401, limiting hole; 402, processing slot hole; 403, water spraying hole; 5, mounting seat; 6, three-jaw chuck; 7, first motor; 8, first gear set; 9, threaded barrel; 10, first lead screw; 11, second motor; 12, second gear set; 13, filter plate; 14, support base; 1401, groove; 1402, roller; 15, support wheel; 16, mounting guide rail; 17, second lead screw; 18, third motor; 19, mounting frame; 20, electric telescopic rod; 21, drive seat; 22, milling cutter; 23, water pump; 24, water inlet pipe; 25, water tank; 26, drain pipe; 27, shunt box; 28, control valve; 29, through hole; 30, mounting box; 31, storage box; 32, slide rail; 33, box door; 34, limiting telescopic rod. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0030] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0031] Embodiment:

[0032] Refer to Figures 1-7, A processing device for the spiral groove of a cemented carbide drill bit, including a bottom plate 1, and further including: a mounting post 2 fixedly connected to the bottom plate 1, a connecting post 3 fixedly connected to the mounting post 2, a limiting block 4 fixedly connected to the top of the connecting post 3, a limiting hole 401 is opened in the limiting block 4, and the inner wall of the limiting hole 401 is the same as the outer diameter of the alloy drill bit to be processed. In the present invention, there are two groups of limiting blocks 4, the two groups of limiting holes 401 are coaxial, and there is a space for the milling cutter 22 to process the alloy between the two groups of limiting blocks 4. The milling cutter 22 mills out a spiral groove on the alloy rod at the space, or one group of limiting blocks 4 is provided, and a processing groove hole 402 communicating with the limiting hole 401 is opened at the top of the limiting block 4. The milling cutter 22 can mill out a spiral groove on the alloy rod through the processing groove hole 402. During the milling process, the limiting block 4 supports the alloy rod, reduces the gap at the bottom of the alloy rod, thereby reducing the vibration of the alloy rod during processing, improving the stability of processing and the accuracy of the processed cemented carbide drill bit. And because the bottom of the alloy rod has support, it can effectively avoid the bending deformation of the alloy rod and the fracture of the alloy rod when processing a thinner alloy rod during processing.

[0033] It should be noted that when processing drill bits of different thicknesses, the limiting block 4 can be replaced, and the limiting block 4 adapted to the limiting hole 401 can be selected.

[0034] Such as Figure 4 and Figure 6As shown in the figure, an installation box 30 is fixedly connected to the top of the bottom plate 1. A processing part for processing alloys is provided on the installation box 30. Among them, the processing part includes an installation guide rail 16 fixedly connected to the inner wall of the top of the installation box 30. An installation frame 19 is slidably connected to the installation guide rail 16. An electric telescopic rod 20 is fixedly connected to the installation frame 19. The output end of the electric telescopic rod 20 is fixedly connected to a driving seat 21. When the driving seat 21 is started, the driving seat 21 drives the milling cutter 22 to rotate. The milling cutter 22 is fixedly connected to the bottom of the driving seat 21. A second lead screw 17 is rotatably connected to the installation guide rail 16. The second lead screw 17 is threadedly connected to the installation frame 19. A third motor 18 is fixedly connected to the outer wall of the installation box 30. The output end of the third motor 18 is fixedly connected to the second lead screw 17. In the above structure, when the third motor 18 is started, the third motor 18 drives the second lead screw 17 to rotate. When the second lead screw 17 rotates, it drives the installation frame 19 to slide on the installation guide rail 16 by means of the thread. It should be noted that in order to improve stability, a chute with a "T" - shaped cross - section is opened on the installation guide rail 16. When the installation frame 19 moves left and right, the driving seat 21 moves left and right, thereby driving the milling cutter 22 to move left and right to control the position of the milling cutter 22. When the electric telescopic rod 20 is started, the electric telescopic rod 20 drives the driving seat 21 to lift and lower, thereby driving the milling cutter 22 to lift and lower to control the depth of the spiral groove being milled. To sum up, in the present invention, not only can the alloy rod be fixed and the milling cutter 22 be driven to move to process the corresponding alloy drill bit, but also the position of the milling cutter 22 can be fixed and the alloy rod can be driven to move left and right, and the alloy rod can be processed by the milling cutter 22, so as to facilitate the processing of alloy drill bits with different requirements, such as:

[0035] The moving mode of the milling cutter 22 is suitable for the processing of large - sized workpieces because it can move within a large range, the processing speed of the spiral groove is relatively fast, high - efficiency production can be achieved, and the movement of the milling cutter 22 is convenient for adjustment and control. Different processing requirements can be achieved by adjusting the cutting parameters. The moving mode of the milling cutter 22 can not only make the processed surface of the spiral groove smooth with high surface quality, but also maintain small offsets and errors, improving the processing accuracy.

[0036] The moving of the alloy drill bit is suitable for the processing of small - sized and complex workpieces, which can move within a small range. Its processing process is relatively simple, without the need for complex equipment and adjustment, and spiral grooves with a larger depth can be processed. Therefore, when using the moving mode of the alloy drill bit for processing, the surface finish of the spiral groove is relatively high.

[0037] To sum up, when processing different drill bits, a suitable processing method can be selected, so as to facilitate the processing of different types of alloy drill bits.

[0038] Such as Figure 5 and Figure 6As shown, it further includes a fixing part for fixing the alloy, which is movably arranged on the base plate 1. Among them, the fixing part includes a mounting seat 5. A supporting wheel 15 is rotatably connected to the bottom of the mounting seat 5, and a three-jaw chuck 6 for fixing the alloy is rotatably connected to the mounting seat 5. In the above structure, the jaws of the three-jaw chuck 6 are controlled to open and close by a rotating tool, so as to facilitate fixing the metal rod on the three-jaw chuck 6 for processing. Among them, the supporting wheel 15 rolls on the base plate 1 to support the mounting seat 5.

[0039] As Figure 5 and Figure 7 shown, furthermore, a supporting seat 14 is fixedly connected to the mounting seat 5. A semi-circular groove 1401 is formed in the supporting seat 14. A roller 1402 is rotatably connected in the groove 1401. The roller 1402 abuts against the side wall of the three-jaw chuck 6 and cooperates with the supporting wheel 15 to support the three-jaw chuck 6, thereby improving the stability of the three-jaw chuck 6, improving the stability when the alloy rod moves left and right, and improving the precision of the processed alloy drill bit. In summary, through the design of the supporting seat 14 and the groove 1401, the roller 1402 in the groove 1401 abuts against the side wall of the three-jaw chuck 6 and cooperates with the supporting wheel 15 to act as an additional support point. When the alloy rod moves left and right, the supporting seat 14 and the roller 1402 provide additional stability, reduce the swaying and offset of the alloy rod, and thus improve the stability and processing precision during the processing.

[0040] As Figure 4 and Figure 5As shown in the figure, it further includes a driving part arranged on the installation box 30 for driving the fixed part to move. The driving part includes a threaded cylinder 9 rotatably connected to the inner wall of the installation box 30. A first lead screw 10 is threadedly connected to the threaded cylinder 9. The first lead screw 10 is fixedly connected to the mounting seat 5. A limit telescopic rod 34 is fixedly connected to the inner wall of the installation box 30. The output end of the limit telescopic rod 34 is fixedly connected to the mounting seat 5. A second motor 11 is fixedly connected to the inner wall of the installation box 30. The output shaft of the second motor 11 is synchronously rotated with the threaded cylinder 9 through a second gear set 12. A first motor 7 is fixedly connected to the mounting seat 5. The output shaft of the first motor 7 is synchronously rotated with the three-jaw chuck 6 through a first gear set 8. When the second motor 11 is started, the output shaft of the second motor 11 drives the threaded cylinder 9 to rotate through the second gear set 12. Under the action of the two limit telescopic rods 34, the threaded cylinder 9 drives the first lead screw 10 to expand and contract through the thread, thereby driving the mounting seat 5 to move left and right, and then driving the alloy rod to move left and right. When the first motor 7 is started, the output shaft of the first motor 7 drives the three-jaw chuck 6 to rotate through the first gear set 8, thereby driving the alloy rod to rotate. Cooperating with the second motor 11, it drives the alloy rod to rotate and slide left and right at the same time, so as to facilitate the milling cutter 22 to mill a groove on the alloy rod to process an alloy drill bit. To sum up, in the present invention, the first lead screw 10 and the threaded cylinder 9 cooperate to drive the mounting seat 5 to move left and right, thereby improving the movement accuracy, and further improving the accuracy of the processed alloy drill bit.

[0041] As Figure 3 shown, it further includes a water tank 25 fixedly connected to the bottom of the bottom plate 1. A through hole 29 communicating with the water tank 25 is opened on the bottom plate 1; a water pump 23 fixedly connected to the top of the bottom plate 1. An inlet pipe 24 extending into the water tank 25 is fixedly connected to the input end of the water pump 23; a flow dividing box 27 fixedly connected to the side wall of the limit block 4. A control valve 28 is arranged on the flow dividing box 27. A drain pipe 26 communicating with the flow dividing box 27 is fixedly connected to the output end of the water pump 23; a flow dividing cavity is opened in the limit block 4. The flow dividing cavity is communicated with the output end of the flow dividing box 27. And a plurality of spray holes 403 are opened on the inner wall of the limit hole 401. When the water pump 23 is started, the water pump 23 sucks the coolant inside the water tank 25 through the inlet pipe 24, and then discharges it into the flow dividing box 27 through the drain pipe 26. By opening the corresponding control valve 28, the coolant enters the flow dividing cavity, and then sprays out through the spray holes 403, spraying into the spiral groove inside the alloy drill bit in the limit hole 401. While using the coolant to cool the alloy drill bit and the milling cutter 22, it increases the lubrication degree between the alloy and the limit block 4, reduces the friction, and under the limitation of the hole wall of the limit hole 401, the coolant can only flow in the spiral groove, thereby increasing the pressure of the coolant inside the spiral groove, flushing out the metal chips inside the spiral groove, and improving the accuracy of secondary milling.

[0042] As Figure 6As shown, a filter plate 13 which is inclined is fixedly connected inside the water tank 25. A storage box 31 for receiving waste is inserted into the water tank 25. The filter plate 13 is preferably a zeolite molecular sieve plate, which adsorbs and filters the coolant, thereby improving the cleaning effect of the coolant, facilitating the recycling of the coolant, and saving processing costs.

[0043] As Figure 2 shown, a slide rail 32 is fixedly connected to the installation box 30, and a box door 33 is slidably connected to the slide rail 32. Such a design can save the space occupied when opening the door.

[0044] In summary, the present invention has the following advantages:

[0045] During the process of milling the groove, the alloy rod is supported by the limit block 4, reducing the gap at the bottom of the alloy rod, thereby reducing the vibration of the alloy rod during processing, improving the stability of processing and the accuracy of the processed alloy drill bit. And because the bottom of the alloy rod has support, the alloy rod can be effectively prevented from bending and deforming during processing, and the situation of alloy rod fracture when processing a thinner alloy rod can be avoided;

[0046] And there are two processing methods. One is to drive the milling cutter 22 to move, which is convenient for processing large workpieces. The other is to drive the alloy rod to move, which is suitable for processing small and complex workpieces. Thus, it is convenient to select the corresponding processing method according to the model of the processing drill bit, so as to achieve the flexibility and diversity of processing;

[0047] Through the design of the support seat 14 and the groove 1401, the roller 1402 in the groove 1401 abuts against the side wall of the three-jaw chuck 6 and cooperates with the support wheel 15 to act as an additional support point. When the alloy rod moves left and right, the support seat 14 and the roller 1402 provide additional stability, reducing the swaying and offset of the alloy rod, thereby improving the stability and processing accuracy during the processing;

[0048] Under the restriction of the hole wall of the limit hole 401, the coolant can only flow in the spiral groove, thereby increasing the pressure of the coolant inside the spiral groove, flushing away the metal chips inside the spiral groove, improving the accuracy of secondary milling and reducing the loss of the milling cutter 22 caused by iron chips.

[0049] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A processing device for the spiral groove of a cemented carbide drill bit, comprising a bottom plate (1), characterized in that, it further comprises: a mounting post (2) fixedly connected to the bottom plate (1), a connecting post (3) fixedly connected to the mounting post (2), a limiting block (4) fixedly connected to the top of the connecting post (3), a limiting hole (401) opened in the limiting block (4), and the inner wall of the limiting hole (401) is the same as the outer diameter of the alloy drill bit to be processed; a mounting box (30) fixedly connected to the top of the bottom plate (1), and a processing part for processing the alloy is arranged on the mounting box (30); a fixing part for fixing the alloy, movably arranged on the bottom plate (1); a driving part arranged on the mounting box (30) for driving the fixing part to move.

2. The processing device for the spiral groove of a cemented carbide drill bit according to claim 1, characterized in that, the processing part comprises a mounting guide rail (16) fixedly connected to the inner wall of the top of the mounting box (30), a mounting frame (19) slidably connected to the mounting guide rail (16), an electric telescopic rod (20) fixedly connected to the mounting frame (19), a driving seat (21) fixedly connected to the output end of the electric telescopic rod (20), a milling cutter (22) for drilling and milling the spiral groove fixedly connected to the bottom of the driving seat (21), a second lead screw (17) rotatably connected to the mounting guide rail (16), the second lead screw (17) being threadedly connected to the mounting frame (19), and a third motor (18) fixedly connected to the outer wall of the mounting box (30), the output end of the third motor (18) being fixedly connected to the second lead screw (17).

3. The processing device for the spiral groove of a cemented carbide drill bit according to claim 2, characterized in that, there are two groups of the limiting blocks (4), the two groups of limiting holes (401) are coaxial, and there is a space for the milling cutter (22) to process the alloy between the two groups of limiting blocks (4).

4. The processing device for the spiral groove of a cemented carbide drill bit according to claim 2, characterized in that, there is one group of the limiting blocks (4), and a processing groove hole (402) communicating with the limiting hole (401) is opened at the top of the limiting block (4).

5. The processing device for the spiral groove of a cemented carbide drill bit according to claim 3 or 4, characterized in that, the fixing part comprises a mounting seat (5), a supporting wheel (15) is rotatably connected to the bottom of the mounting seat (5), and a three-jaw chuck (6) for fixing the alloy is rotatably connected to the mounting seat (5).

6. The processing device for the spiral groove of a cemented carbide drill bit according to claim 5, characterized in that, a supporting seat (14) is fixedly connected to the mounting seat (5), a semi-circular groove (1401) is opened in the supporting seat (14), and a roller (1402) is rotatably connected in the groove (1401), and the roller (1402) abuts against the side wall of the three-jaw chuck (6).

7. The processing device for the spiral groove of a cemented carbide drill bit according to claim 5, It is characterized in that the driving part includes a threaded cylinder (9) rotatably connected to the inner wall of the mounting box (30), a first lead screw (10) is threadedly connected to the threaded cylinder (9), the first lead screw (10) is fixedly connected to the mounting seat (5), a limit telescopic rod (34) is fixedly connected to the inner wall of the mounting box (30), the output end of the limit telescopic rod (34) is fixedly connected to the mounting seat (5), a second motor (11) is fixedly connected to the inner wall of the mounting box (30), the output shaft of the second motor (11) rotates synchronously with the threaded cylinder (9) through a second gear set (12), a first motor (7) is fixedly connected to the mounting seat (5), and the output shaft of the first motor (7) rotates synchronously with the three-jaw chuck (6) through a first gear set (8).

8. The processing device for the spiral groove of a cemented carbide drill bit according to claim 7, It is characterized in that further comprising: a water tank (25) fixedly connected to the bottom of the base plate (1), and a through hole (29) communicating with the water tank (25) is formed in the base plate (1); a water pump (23) fixedly connected to the top of the base plate (1), and a water inlet pipe (24) extending into the water tank (25) is fixedly connected to the input end of the water pump (23); a flow dividing box (27) fixedly connected to the side wall of the limit block (4), a control valve (28) is arranged on the flow dividing box (27), and a drain pipe (26) communicating with the flow dividing box (27) is fixedly connected to the output end of the water pump (23); a flow dividing cavity is formed in the limit block (4), the flow dividing cavity is communicated with the output end of the flow dividing box (27), and a plurality of groups of water spraying holes (403) are formed in the inner wall of the limit hole (401).

9. The processing device for the spiral groove of a cemented carbide drill bit according to claim 8, It is characterized in that an inclined filter plate (13) is fixedly connected in the water tank (25), and a storage box (31) for receiving waste is inserted into the water tank (25).

10. The processing device for the spiral groove of a cemented carbide drill bit according to claim 1, It is characterized in that a slide rail (32) is fixedly connected to the mounting box (30), and a box door (33) is slidably connected to the slide rail (32).

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