A thread cutting tool bit machining method integrating thread cutting, deburring and sealing surface machining

Abstract

The application discloses a thread turning tool bit machining method integrating thread turning, deburring and sealing surface machining, which comprises a tool bit body, a thread turning blade is detachably embedded at the left front end of the tool bit body, and a deburring blade is detachably embedded at the left end middle position of the tool bit body. The three-blade integrated tool bit can complete three machining procedures in one station through single clamping, so that the machining process is simplified, the working hours are compressed, the production is increased, the cost of tool purchase and management is reduced, and the tool bit is suitable for large-batch production of sleeves. Single clamping eliminates the cumulative positioning error, the positioning and independent cooling structure of the blade are matched, the tool wear, thermal deformation and quality deviation caused by human and tools are reduced, the coaxiality of the workpiece, the matching precision and the consistency of the finished product are improved, the built-in multi-channel directional cooling assembly accurately takes away the cutting heat, delays the tool wear and deformation, prolongs the tool life, eliminates the high-temperature machining defects, and guarantees the stable and reliable machining.

Description

Technical Field

[0001] This invention relates to the field of oil casing processing technology, specifically to a threading cutter head processing method that integrates threading, deburring, and sealing surface processing. Background Technology

[0002] In the manufacturing process of oil casing, threading of the pipe ends, machining of the metal sealing surface, and deburring are three key processes to ensure the sealing performance and reliability of the casing connection. Existing technology typically uses multiple specialized cutting tools to complete these processes in steps, which has the following technical drawbacks:

[0003] 1. Cumbersome process and low production efficiency: It requires multiple clamping of workpieces and changing of tool holders and cutting tools, resulting in long processing cycles and low equipment processing efficiency, making it difficult to meet the needs of large-scale production.

[0004] 2. Accumulated positioning errors limit machining accuracy: Multiple clamping and tool changes introduce accumulated positioning errors, affecting the coaxiality and fit accuracy of the thread and sealing surface, thereby reducing the sealing performance and fatigue strength of the sleeve.

[0005] 3. High tooling and management costs: Multiple sets of specialized tools are required, which increases the costs of tool procurement, inventory management and maintenance, and the wear status of different tools is difficult to control uniformly.

[0006] 4. Poor machining quality stability: Variations in tool wear, replacement, and operator skills can easily lead to fluctuations in machining quality, making it difficult to guarantee product consistency. Therefore, there is an urgent need to develop an integrated threading head capable of completing threading, deburring, and sealing surface machining in a single setup and pass to solve the aforementioned problems in existing technologies. Summary of the Invention

[0007] The purpose of this invention is to provide a threading cutter head processing method that integrates threading, deburring, and sealing surface processing to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a threading cutter head processing method integrating threading, deburring, and sealing surface processing, comprising a cutter head body, wherein a threading blade is detachably embedded at the left front end of the cutter head body, a deburring blade is detachably embedded at the middle position of the left end of the cutter head body, a sealing surface blade is detachably embedded at the upper left end of the cutter head body, and a cooling component is provided inside the cutter head body.

[0009] As a preferred embodiment of the present invention, a first mounting groove adapted for mounting a thread cutting blade is provided on the left front end of the cutter head body, and a positioning groove is also provided on the left front end face of the cutter head body. The thread cutting blade is slidably embedded in the first mounting groove, and a fixing wedge is embedded in the positioning groove. The fixing wedge is detachably fixed by fastening bolts.

[0010] As a preferred embodiment of the present invention, a first fastening bolt is fitted on the left side of the fixing wedge, the screw end of the first fastening bolt extends into the first mounting groove and passes through the thread cutting blade, and the tail end of the first fastening bolt is threadedly connected to the inside of the cutting head body. A second fastening bolt is fitted on the right side of the fixing wedge, and the tail end of the second fastening bolt is threadedly connected to the inside of the cutting head body.

[0011] As a preferred embodiment of the present invention, a positioning post is integrally formed in the middle of the bottom end of the fixed wedge, and a positioning hole matching the positioning post is opened at the right end of the thread cutting blade, and the positioning post is fitted into the positioning hole with a gap fit.

[0012] As a preferred embodiment of the present invention, a second mounting groove is provided at the middle of the left end of the cutter head body, the deburring blade is embedded in the second mounting groove, and a bolt is threadedly embedded at the middle of the left end of the cutter head body, the tail end of the bolt passing through the deburring blade and extending into the interior of the cutter head body.

[0013] As a preferred embodiment of the present invention, a third mounting groove adapted for mounting the sealing surface blade is provided at the left rear end of the cutter head body, and the sealing surface blade is embedded and fixed inside the third mounting groove; a fourth fastening bolt is threadedly fitted at the left rear end of the cutter head body, and the screw end of the fourth fastening bolt passes through the sealing surface blade and extends into the interior of the cutter head body.

[0014] As a preferred embodiment of the present invention, the cutter head body is provided with two sets of symmetrically arranged positioning and fastening bolts at the installation positions of the deburring blade and the sealing blade, and the two sets of positioning and fastening bolts respectively lock and fix the deburring blade and the sealing blade.

[0015] As a preferred embodiment of the present invention, the cooling assembly includes a coolant inlet, a main channel, and branch channels. The coolant inlet is located at the middle of the front right side of the cutter head body. A rubber sealing plug is detachably and sealed inside the coolant inlet. The inner end of the coolant inlet is connected to the main channel. The main channel is located inside the left side of the cutter head body. The left end of the main channel is connected to several evenly distributed branch channels.

[0016] As a preferred embodiment of the present invention, the left ends of the plurality of branch channels are respectively arranged corresponding to the cutting processing areas of the threading blade, the deburring blade, and the sealing surface blade, and a gap is reserved between the left end of the branch channel and the inner end of the corresponding blade. The threading blade, the deburring blade, and the sealing surface blade are all made of cemented carbide material.

[0017] As a preferred embodiment of the present invention, the following steps are included:

[0018] S1. Blade assembly: The threading blade, deburring blade, and sealing blade are respectively installed in the first mounting groove, second mounting groove, and third mounting groove of the blade body. All blades are locked and positioned by fixing wedges and fastening bolts. The assembly accuracy of the threading blade is ensured by the cooperation of the positioning pin and the positioning hole.

[0019] S2. Cooling pretreatment: Remove the rubber sealing plug inside the coolant inlet and inject cutting coolant into the main channel of the cooling assembly. The coolant is then distributed to each branch channel through the main channel to complete the cooling path pretreatment.

[0020] S3, Integrated processing: Align the assembled cutter head body with the workpiece to be processed, and sequentially complete the thread cutting of the workpiece by using the thread cutting blade (2), remove the burrs on the edges of the workpiece by using the deburring blade, and complete the fine finishing of the sealing surface of the workpiece by using the sealing surface blade. During the processing, the coolant in each branch channel cools and dissipates heat in real time on the cutting area of ​​each blade.

[0021] S4. Finishing and Resetting: After machining is completed, clean the residual debris and coolant from the cutter head body and workpiece surface, check the tightness of each cutting tool, and complete the overall machining operation.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. This invention employs a three-blade integrated cutting head structure, enabling a single workpiece clamping to complete three processes—threading, deburring, and sealing surface finishing—in one operation. This eliminates the cumbersome steps of multiple clamping and frequent tool changes required in traditional processes, effectively shortening processing time and improving production efficiency. Simultaneously, it reduces the costs of purchasing, maintaining, and managing multiple sets of specialized cutting tools, simplifies tool control processes, and is suitable for large-scale mass production.

[0024] 2. This invention employs an integrated machining method, completing all machining in a single clamping and positioning operation. This eliminates the cumulative positioning errors caused by multiple tool changes and clamping operations in traditional methods, effectively improving the coaxiality of the thread and sealing surface, as well as the machining fit accuracy. Combined with a precise insert positioning structure and independent cooling structure, it reduces tool wear and machining thermal deformation, avoids quality fluctuations caused by human error and tool variations, and significantly improves product machining accuracy and quality consistency.

[0025] 3. This invention incorporates a dedicated cooling component that uses a main channel in conjunction with multiple branch channels to precisely and directionally cool the cutting areas of each blade. This removes cutting heat in real time, effectively reducing high-temperature wear and thermal deformation of the blades, extending tool life, avoiding machining defects caused by high temperatures, and ensuring a stable and reliable machining process. Attached Figure Description

[0026] Figure 1 This is the overall front view of the present invention;

[0027] Figure 2 This is a schematic diagram of a partial connection structure between the cutting head and the thread cutting blade of the present invention;

[0028] Figure 3 This is a partially exploded structural diagram of the cutting head and thread cutting blade of the present invention;

[0029] Figure 4 This is a front view of the internal connection structure between the cutting head and the thread cutting blade of the present invention;

[0030] Figure 5 This is a schematic diagram of a partial connection structure between the cutting head and the deburring blade of the present invention;

[0031] Figure 6 This is an exploded structural diagram of the cutting head and deburring blade of the present invention;

[0032] Figure 7 This is a schematic diagram of a partial connection structure between the cutting head and the sealing surface blade of the present invention;

[0033] Figure 8 This is a partially exploded structural diagram of the cutting head and sealing surface blade of the present invention;

[0034] Figure 9 This is a front view of the overall internal structure of the present invention;

[0035] Figure 10 This is a schematic diagram of the cooling component structure of the present invention.

[0036] In the diagram: 1. Cutting head; 2. Threading blade; 3. Deburring blade; 4. Sealing surface blade; 5. Fixing wedge; 6. Positioning groove; 7. First mounting groove; 8. Positioning post; 9. Second mounting groove; 10. Third mounting groove; 11. Cooling assembly; 1101. Coolant inlet; 1102. Main channel; 1203. Branch channel. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0038] In the description of this invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, in the description of this invention, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances. "Multiple" means two or more, and unless otherwise explicitly limited, all such meanings fall within the scope of protection of this invention.

[0040] Example 1

[0041] like Figure 1-8 As shown, the present invention provides a technical solution: a threading cutter head integrating threading, deburring, and sealing surface processing, including a cutter head body 1, a threading blade 2 detachably embedded at the front left side of the cutter head body 1, a deburring blade 3 detachably embedded at the middle left side of the cutter head body 1, and a sealing surface blade 4 detachably embedded at the upper left side of the cutter head body 1. By arranging three functional blades in different areas of the cutter head body, the integrated processing of three processes—threading, deburring, and sealing surface finishing—is achieved, eliminating the need for frequent blade changes required by traditional single-function cutter heads.

[0042] The cutter head body 1 has a first mounting groove 7 on the left front end for mounting the thread cutting blade 2. The cutter head body 1 also has a positioning groove 6 on the left front end face. The thread cutting blade 2 is slidably embedded in the first mounting groove 7. A fixing wedge 5 is embedded in the positioning groove 6. The fixing wedge 5 is detachably fixed by fastening bolts. The assembly structure of sliding embedding + double bolt locking is adopted to facilitate the quick disassembly, replacement and maintenance of the thread cutting blade 2.

[0043] The left side of the fixing wedge 5 is equipped with a first fastening bolt. The screw end of the first fastening bolt extends into the first mounting groove 7 and passes through the thread cutting blade 2. The tail end of the first fastening bolt is threaded into the inside of the cutter head body 1. The right side of the fixing wedge 5 is equipped with a second fastening bolt. The tail end of the second fastening bolt is threaded into the inside of the cutter head body 1. The fixing wedge 5 is equipped with the first fastening bolt and the second fastening bolt to achieve detachable locking and fixing.

[0044] The bottom center of the fixed wedge 5 is integrally formed with a positioning post 8. The right end of the thread cutting tool 2 is provided with a positioning hole that matches the positioning post 8. The positioning post 8 is fitted into the positioning hole with a suitable gap. The precise fit between the positioning post 8 and the positioning hole can effectively limit the displacement and offset of the thread cutting tool 2 during the machining process, ensuring the machining accuracy of thread cutting. The double bolt structure further improves the stability of the tool assembly and avoids the tool from loosening during high-speed cutting.

[0045] A second mounting groove 9 is provided at the middle of the left end of the cutter head body 1. The deburring blade 3 is embedded in the second mounting groove 9. A bolt is threaded into the middle of the left end of the cutter head body 1. The tail end of the bolt passes through the deburring blade 3 and extends into the interior of the cutter head body 1.

[0046] The cutter head body 1 has a third mounting groove 10 on the left rear end for mounting the sealing surface blade 4. The sealing surface blade 4 is embedded and fixed inside the third mounting groove 10. The cutter head body 1 has a fourth fastening bolt threaded on the left rear end. The threaded end of the fourth fastening bolt passes through the sealing surface blade 4 and extends into the cutter head body 1. The independent second mounting groove 9 and third mounting groove 10 provide dedicated mounting positions for the deburring blade 3 and the sealing surface blade 4, realizing independent assembly of each blade without interference. The locking method of the double set of symmetrical fastening bolts ensures that the blade is evenly stressed, effectively resisting the cutting impact force during deburring and sealing surface finishing, preventing the blade from shaking, and ensuring the flatness of the workpiece edge trimming and sealing surface processing.

[0047] The cutter head body 1 is equipped with two sets of symmetrically arranged positioning and fastening bolts at the mounting positions of the deburring blade 3 and the sealing surface blade 4. The two sets of positioning and fastening bolts lock and fix the deburring blade 3 and the sealing surface blade 4 respectively. The locking method of the double sets of symmetrical fastening bolts ensures that the blades are subjected to uniform force, effectively resists the cutting impact force during the deburring and sealing surface finishing process, prevents the blades from shaking, and ensures the flatness of the workpiece edge trimming and sealing surface processing.

[0048] Example 2

[0049] like Figure 1 , 9As shown in Figure 10, the present invention provides a technical solution: a threading cutter head integrating threading, deburring, and sealing surface processing, comprising a cutter head body 1, a threading blade 2 detachably embedded at the left front end of the cutter head body 1, a deburring blade 3 detachably embedded at the middle position of the left end of the cutter head body 1, a sealing surface blade 4 detachably embedded at the upper left end of the cutter head body 1, and a cooling component 11 is provided inside the cutter head body 1. The built-in cooling component provides a structural basis for heat dissipation during overall processing, greatly improving processing continuity and processing efficiency.

[0050] The cooling assembly 11 includes a coolant inlet 1101, a main channel 1102, and branch channels 1103. The coolant inlet 1101 is located at the middle of the front right side of the cutter head body 1. A rubber sealing plug is removably and sealed inside the coolant inlet 1101. The rubber sealing plug can seal the cooling channel in the non-machining state to prevent dust and iron filings from entering the channel and causing blockage. The inner end of the coolant inlet 1101 is connected to the main channel 1102. The main channel 1102 is located inside the left side of the cutter head body 1. The left end of the main channel 1102 is connected to several evenly distributed branch channels 1103. The coolant is uniformly collected in the main channel 1102 and then precisely distributed to each cutting station through the branch channels 1103 to achieve simultaneous cooling of the three machining processes, quickly remove the high temperature generated by cutting, and avoid high temperature wear of the cutting tool and thermal deformation of the workpiece.

[0051] The left ends of several branch channels 1103 are respectively arranged in the cutting areas of the threading blade 2, the deburring blade 3, and the sealing blade 4. A gap is reserved between the left end of the branch channel 1103 and the inner end of the corresponding blade. The threading blade 2, the deburring blade 3, and the sealing blade 4 are all made of cemented carbide. The cemented carbide material greatly improves the hardness, wear resistance, and high temperature resistance of the blades, extends the overall service life of the cutting head, and ensures the stability of long-term processing.

[0052] A processing method that integrates threading, deburring, and sealing surface machining includes the following steps:

[0053] S1. Blade assembly: The threading blade 2, deburring blade 3, and sealing surface blade 4 are respectively embedded in the first mounting groove 7, the second mounting groove 9, and the third mounting groove 10 of the blade body 1. All blades are locked and positioned by fixing wedge 5 and fastening bolts. The assembly accuracy of the threading blade 2 is ensured by the cooperation of positioning pin 8 and positioning hole.

[0054] S2. Cooling pretreatment: Pull out the rubber sealing plug inside the coolant inlet 1101 and inject cutting coolant into the main channel 1102 of the cooling assembly 11. The coolant is then diverted through the main channel 1102 to each branch channel 1103 to complete the cooling path pretreatment.

[0055] S3, Integrated machining: The assembled cutter head body 1 is aligned with the workpiece to be processed. The workpiece is threaded by the threading cutter 2, the workpiece is deburred by the deburring cutter 3, and the workpiece is sealed by the sealing cutter 4. During the processing, the coolant in each branch channel 1103 cools and dissipates heat in real time to the cutting area of ​​each cutter.

[0056] S4. Finishing and Resetting: After machining is completed, clean the residual debris and coolant on the cutter head body 1 and the workpiece surface, check the tightness of each blade, and complete the overall machining operation.

[0057] Working principle:

[0058] Step 1: Precise Assembly and Positioning

[0059] The operator slides the thread cutting blade 2 into the first mounting groove 7 on the left front end of the cutter head body 1. The positioning pin 8 at the bottom of the fixing wedge 5 aligns and engages with the positioning hole of the thread cutting blade 2, completing the initial positioning. The operator then tightens the first fastening bolt on the left side and the second fastening bolt on the right side of the fixing wedge 5 in sequence to lock and fix the thread cutting blade 2. Subsequently, the deburring blade 3 and the sealing surface blade 4 are respectively inserted into the second mounting groove 9 and the third mounting groove 10, and locked using the symmetrical positioning fastening bolts. The operator then checks the assembly firmness and positional accuracy of all blades to ensure there are no offset or loosening issues.

[0060] Step 2: Cooling System Pretreatment

[0061] Pull out the rubber sealing plug inside the coolant inlet 1101, and inject special cutting coolant into the main channel 1102 inside the cutter body 1 through the coolant inlet 1101. After the coolant fills the main channel 1102, it is evenly distributed to each branch channel 1103, so that the cooling medium fills all cooling passages, completing the pre-processing cooling treatment before machining, and ensuring that the subsequent machining can dissipate heat in real time.

[0062] Step 3: Integrated Continuous Processing

[0063] Align the assembled cutter head body 1 with the workpiece to be processed, start the processing equipment, and first use the thread cutting blade 2 to perform thread cutting on the workpiece. After the threading is completed, as the tool holder moves, the deburring blade 3 removes and trims the residual burrs and flash at the thread ends and machined edges of the workpiece. Finally, the sealing surface blade 4 performs fine finishing and leveling on the sealing surface of the workpiece. Throughout the entire processing, the coolant in the main channel 1102 fills all the branch channels 1103, providing cooling for the cutting areas of the thread cutting blade 2, deburring blade 3, and sealing surface blade 4, and carrying away the high temperature of cutting in real time, achieving simultaneous processing and cooling.

[0064] Step 4: Equipment Cleaning and Reset Inspection

[0065] After the integrated machining of the workpiece is completed, stop the equipment and clean the surface of the cutter head body 1, the iron filings, impurities and residual coolant on the cutting edges of each blade. At the same time, clean the machining debris on the surface of the workpiece. Check the tightness of each fastening bolt, the wear of the blades and the unobstructed passage of the cooling component 11 one by one. After confirming that there are no faults and no looseness, reinstall the rubber sealing plug in the coolant inlet 1101 to complete the entire machining process. Reset the equipment and wait for the next operation.

[0066] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A threading cutter head integrating threading, deburring, and sealing surface processing, comprising a cutter head body (1), characterized in that: The cutting head body (1) is detachably fitted with a thread cutting blade (2) at the front left side, and a deburring blade (3) is detachably fitted at the middle left end of the cutting head body (1). A sealing surface blade (4) is detachably fitted at the upper left side of the cutting head body (1). A cooling assembly (11) is provided inside the cutting head body (1).

2. The threading cutter head that integrates threading, deburring, and sealing surface processing according to claim 1, characterized in that: The cutter head body (1) has a first mounting groove (7) on the left front end that is adapted to the installation of the thread cutting blade (2). The cutter head body (1) also has a positioning groove (6) on the left front end face. The thread cutting blade (2) is slidably embedded in the first mounting groove (7). A fixing wedge (5) is embedded in the positioning groove (6). The fixing wedge (5) is detachably fixed by fastening bolts.

3. The threading cutter head that integrates threading, deburring, and sealing surface processing according to claim 2, characterized in that: The left side of the fixed wedge (5) is equipped with a first fastening bolt. The screw end of the first fastening bolt extends into the first mounting groove (7) and passes through the thread cutting blade (2). The tail end of the first fastening bolt is threaded into the inside of the cutter head body (1). The right side of the fixed wedge (5) is equipped with a second fastening bolt. The tail end of the second fastening bolt is threaded into the inside of the cutter head body (1).

4. The threading cutter head that integrates threading, deburring, and sealing surface processing according to claim 3, characterized in that: The fixed wedge (5) has a positioning post (8) integrally formed at the bottom center. The right end of the thread cutting blade (2) has a positioning hole that matches the positioning post (8). The positioning post (8) is fitted into the positioning hole with a suitable gap.

5. The threading cutter head that integrates threading, deburring, and sealing surface processing according to claim 1, characterized in that: The left end of the cutter head body (1) is provided with a second mounting groove (9), the deburring blade (3) is embedded in the second mounting groove (9), and the left end of the cutter head body (1) is threaded with a bolt, the tail end of the bolt passes through the deburring blade (3) and extends into the interior of the cutter head body (1).

6. The threading cutter head that integrates threading, deburring, and sealing surface processing according to claim 1, characterized in that: The cutter head body (1) has a third mounting groove (10) on the left rear end for mounting the sealing surface blade (4), and the sealing surface blade (4) is embedded and fixed inside the third mounting groove (10); the cutter head body (1) has a fourth fastening bolt threaded on the left rear end, and the screw end of the fourth fastening bolt passes through the sealing surface blade (4) and extends into the cutter head body (1).

7. The threading cutter head that integrates threading, deburring, and sealing surface processing according to claim 1, characterized in that: The cutter head body (1) is provided with two sets of symmetrically arranged positioning and fastening bolts at the installation positions of the deburring blade (3) and the sealing surface blade (4), respectively. The two sets of positioning and fastening bolts are respectively used to lock and fix the deburring blade (3) and the sealing surface blade (4).

8. The threading cutter head that integrates threading, deburring, and sealing surface processing according to claim 1, characterized in that: The cooling assembly (11) includes a coolant inlet (1101), a main channel (1102), and branch channels (1103). The coolant inlet (1101) is located at the middle of the front right side of the cutter head body (1). A rubber sealing plug is removably and sealed inside the coolant inlet (1101). The inner end of the coolant inlet (1101) is connected to the main channel (1102). The main channel (1102) is located inside the left side of the cutter head body (1). The left end of the main channel (1102) is connected to several evenly distributed branch channels (1103).

9. The threading cutter head that integrates threading, deburring, and sealing surface processing according to claim 8, characterized in that: The left ends of several branch channels (1103) are respectively arranged in the cutting processing areas of the thread cutting blade (2), the deburring blade (3), and the sealing surface blade (4), and a gap is reserved between the left end of the branch channel (1103) and the inner end of the corresponding blade. The thread cutting blade (2), the deburring blade (3) and the sealing surface blade (4) are all made of cemented carbide material.

10. A processing method integrating threading, deburring, and sealing surface processing, characterized in that, The thread-cutting cutter head applied to any one of claims 1-9 comprises the following steps: S1. Blade assembly: The thread cutting blade (2), deburring blade (3), and sealing blade (4) are respectively embedded in the first mounting groove (7), the second mounting groove (9), and the third mounting groove (10) of the blade body (1). All blades are locked and positioned by fixing wedges (5) and fastening bolts. The assembly accuracy of the thread cutting blade (2) is ensured by the cooperation between the positioning pin (8) and the positioning hole. S2, Cooling pretreatment: Pull out the rubber sealing plug inside the coolant inlet (1101), inject cutting coolant into the main channel (1102) of the cooling assembly (11), and the coolant is diverted to each branch channel (1103) through the main channel (1102) to complete the cooling path pretreatment; S3, Integrated machining: Align the assembled cutter head body (1) with the workpiece to be machined, and sequentially complete the workpiece threading by the threading cutter (2), remove the workpiece edge burrs by the deburring cutter (3), and complete the workpiece sealing surface finishing by the sealing surface cutter (4). During the machining process, the coolant in each branch channel (1103) cools and dissipates heat in real time on the cutting area of ​​each cutter. S4. Finishing and resetting: After the machining is completed, clean the cutter head body (1) and the workpiece surface of any remaining debris and coolant, check the tightness of each blade and complete the overall machining operation.

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