A cutting head for machining threads

Abstract

The embodiment of the present application discloses a cutter head for processing threads, which is used in the field of automated processing technology, comprising: a cutter body, a blade sleeve, a sliding sleeve and an adjusting screw sleeve; the adjusting screw sleeve is sleeved on the outer side of the drive shaft mounting hole away from the driving member, and the adjusting screw sleeve is provided with a protrusion on the outer side away from the driving member; one end of the blade sleeve is sleeved on the outer side of the blade mounting groove, and the other end is arranged on the outer side of the adjusting screw sleeve away from the driving member and is provided with a groove; the sliding sleeve is sleeved on the outer side of the blade sleeve away from the driving member, and the sliding sleeve is used to drive the blade sleeve to move to the groove of the blade sleeve when sliding; the adjusting screw sleeve is used to maintain the position outside the drive shaft mounting hole when the protrusion of the adjusting screw sleeve is embedded in the groove of the blade sleeve, and lock the blade sleeve so that when the driving member drives the cutter head to rotate, the blade sleeve presses the threaded blade installed in the blade mounting groove, and the driving member drives the cutter head to be processed and formed in one go, which can improve the efficiency of thread processing.

Description

Technical Field

[0001] The present application relates to the field of automated machining technology, and in particular to a cutter head for machining threads. Background Art

[0002] When processing threads of 1 / 4 inch, 3 / 8 inch, 9 / 16 inch, 3 / 4 inch or 1 inch pipe fittings with pressure above 140 MPa with existing technology, lathe turning is mainly used for thread processing of pipe fittings in the connection of medium and high pressure pipe fittings, while manual die tools can be used for 1 / 4 inch, 3 / 8 inch and 9 / 16 inch.

[0003] Among them, when the existing manual die tool is used to process threads, when the diameter of the pipe fitting exceeds 9 / 16 inches, it is difficult for manpower to provide the torque required for thread processing, and the manual die tool is difficult to process. In addition, the processing steps of the manual die tool are to cut in, process two circles each time, and then rotate in the opposite direction for one circle to discharge the internal iron chips before processing the next circle of thread. The manual die processing time is long and the processing efficiency is low. The existing lathe turning processing includes: ordinary lathe thread processing and CNC lathe thread processing; when ordinary lathe thread processing, it is necessary to perform tool setting and manual feeding, and one thread needs to be turned several times, so the processing time is long, and it takes a long time to complete the processing of a section of thread, and the processing efficiency is low; when using a CNC lathe to process threads, it is necessary to perform programming and tool setting, and one thread needs to be turned several times, so the processing time is long and the processing efficiency is low.

[0004] It can be seen that the existing manual die tool thread processing and lathe thread turning processing require relatively complicated steps and the thread processing efficiency is low. Summary of the Invention

[0005] An embodiment of the present application provides a cutter head for machining threads, which can effectively improve the efficiency of machining threads.

[0006] The embodiment of the present application provides a cutter head for machining threads, comprising: a cutter body, a blade pressing sleeve, a sliding sleeve, and an adjusting screw sleeve;

[0007] One end of the cutter body is provided with a blade mounting slot, and the other end is provided with a drive shaft mounting hole, the blade mounting slot is used to mount a threaded blade, and the drive shaft mounting hole is used to mount a drive member that drives the cutter head to rotate;

[0008] The adjusting screw sleeve is sleeved on the outer side of the drive shaft mounting hole away from the driving member, and the adjusting screw sleeve can move on the outer side of the drive shaft mounting hole based on the extension direction of the drive shaft mounting hole, and the outer side of the adjusting screw sleeve away from the driving member is provided with a protrusion;

[0009] One end of the blade pressing sleeve is sleeved on the outside of the blade mounting groove, and the other end is arranged on the outside of the adjusting screw sleeve away from the driving member and is provided with a groove;

[0010] The sliding sleeve is sleeved on the outer side of the blade pressing sleeve away from the driving member, and the sliding sleeve is used to drive the blade pressing sleeve to move until the protrusion of the adjusting screw sleeve is embedded in the groove of the blade pressing sleeve when sliding;

[0011] The adjusting screw sleeve is used to maintain a position outside the drive shaft mounting hole when the protrusion of the adjusting screw sleeve is embedded in the groove of the blade pressing sleeve, and lock the blade pressing sleeve so that when the driving member drives the cutter head to rotate, the blade pressing sleeve presses the threaded blade installed in the blade mounting groove.

[0012] Furthermore, the blade body further comprises: a spring pin mounting hole, a blade spring pin, a blade spring, a combination screw and a screw hole;

[0013] The spring pin mounting hole is provided at a first end of the blade mounting slot close to the drive shaft mounting hole, the screw hole is provided through the first end, and an extending direction of the spring pin mounting hole is perpendicular to a penetrating direction of the screw hole;

[0014] The blade spring is installed in the spring pin installation hole, with one end abutting against the inner wall of the spring pin installation hole and the other end abutting against the guide hole of the blade spring pin;

[0015] The combination screw is screwed into the screw hole, and the protrusion of the combination screw passing through the screw hole abuts against the groove of the blade spring pin.

[0016] Furthermore, the blade body further comprises: a first spring mounting hole, and the blade pressing sleeve further comprises: a second spring mounting hole;

[0017] The first spring mounting hole and the second spring mounting hole are correspondingly arranged, and a compression sleeve spring is provided between the first spring mounting hole and the second spring mounting hole;

[0018] The compression sleeve spring has one end abutting against the inner wall of the first spring mounting hole, and the other end abutting against the inner wall of the second spring mounting hole, and is used for ejecting the blade compression sleeve from the cutter body.

[0019] Furthermore, a first thread is provided on the outer side of the drive shaft mounting hole of the cutter body, and a second thread is provided on the inner side of the adjusting screw sleeve close to the drive shaft mounting hole;

[0020] The first thread cooperates with the second thread to enable the adjusting screw sleeve to move on the outer side of the drive shaft mounting hole by screwing in and out of the thread.

[0021] Furthermore, the blade pressing sleeve further comprises: a bevel;

[0022] The bevel is provided at one end of the blade pressing sleeve close to the blade mounting groove;

[0023] The bevel is used to abut the threaded blade when the threaded blade is installed in the blade mounting groove. When the blade sleeve moves in a direction close to the blade mounting groove, the bevel applies an extrusion force to the threaded blade, driving the threaded blade to move close to the first rotation axis. The first rotation axis is the central axis of the rotational motion of the cutter head when processing the pipe to be processed.

[0024] Furthermore, the adjusting screw sleeve includes: a guide piece, a fixing piece, a fixing piece spring and a mounting groove;

[0025] The guide plate and the fixing plate are installed in the installation groove;

[0026] The guide plate is provided with a third spring mounting hole, the fixing plate is provided with a fourth spring mounting hole, and the fixing plate spring is arranged between the third spring mounting hole and the fourth spring mounting hole;

[0027] The fixing plate spring is used to pop out the fixing plate when the blade pressing sleeve slides to the point where the groove of the blade pressing sleeve corresponds to the raised step of the fixing plate, so that the raised step of the fixing plate is embedded in the groove of the blade pressing sleeve.

[0028] Furthermore, it further comprises: a sphere, the blade pressing sleeve further comprises: a tapered hole, and the sliding sleeve comprises: a slope;

[0029] The sphere is arranged between the tapered hole and the slope, the tapered hole is arranged in the groove of the blade pressing sleeve, and the top of the tapered hole is close to the fixing plate;

[0030] The ramp is used to push the ball to move toward the top of the tapered hole when the sliding sleeve slides, so that the ball pushes the raised step of the fixing plate away from the groove of the blade pressing sleeve.

[0031] Furthermore, a first jackscrew mounting hole is provided on the wall of the drive shaft mounting hole, and the first jackscrew mounting hole is used to install a first tightening screw, and a protruding portion of the first tightening screw is pressed against the drive member to tighten the cutter body to the drive member;

[0032] The sleeve wall of the adjusting screw sleeve is provided with a second jackscrew mounting hole, and the second jackscrew mounting hole is used to install a second tightening screw, and the protrusion of the second tightening screw is in contact with the outer wall of the drive shaft mounting hole to tighten the adjusting screw sleeve to the drive shaft mounting hole.

[0033] Furthermore, the adjusting screw sleeve further comprises: a pressing sleeve stopper, a stopper mounting groove, a stopper fixing pin, a fixing pin mounting hole, a stopper spring and a stopper spring mounting hole;

[0034] The stopper mounting groove is provided at one end of the adjusting screw sleeve away from the blade pressing sleeve, the fixing pin mounting hole is provided on the side wall of the stopper mounting groove, and the stopper fixing pin is installed in the fixing pin mounting hole;

[0035] The pressing sleeve stopper is arranged in the stopper mounting groove and is rotatably mounted on the stopper fixing pin;

[0036] The stopper spring mounting hole is provided at one end of the stopper mounting groove, one end of the stopper spring is mounted in the stopper spring mounting hole, and the other end is connected to the pressing sleeve stopper;

[0037] The stopper spring is used to apply elastic force to the pressing sleeve stopper, driving one end of the pressing sleeve stopper to rotate axially away from the stopper mounting groove with the stopper fixing pin as the center, so that one end of the pressing sleeve stopper protrudes from the stopper mounting groove.

[0038] Furthermore, the blade body further comprises: a blade body pressing block and a pressing block screw;

[0039] The blade body pressing block is installed on a side of the blade mounting slot away from the drive shaft mounting hole;

[0040] The pressing block screw is arranged on the cutter body pressing block and is used to lock the cutter body pressing block to the cutter body.

[0041] It can be seen from the above technical solutions that the embodiments of the present application have the following advantages:

[0042] The cutter head of the embodiment of the present application includes: a cutter body, a blade pressing sleeve, a sliding sleeve and an adjusting screw sleeve; the adjusting screw sleeve is sleeved on the outer side of the drive shaft mounting hole away from the driving member, and the adjusting screw sleeve is provided with a protrusion on the outer side away from the driving member; one end of the blade pressing sleeve is sleeved on the outer side of the blade mounting groove, and the other end is arranged on the outer side of the adjusting screw sleeve away from the driving member and is provided with a groove; the sliding sleeve is sleeved on the outer side of the blade pressing sleeve away from the driving member, and the sliding sleeve is used to drive the blade pressing sleeve to move until the protrusion of the adjusting screw sleeve is embedded in the groove of the blade pressing sleeve when sliding; the adjusting screw sleeve is used to maintain the position outside the drive shaft mounting hole when the protrusion of the adjusting screw sleeve is embedded in the groove of the blade pressing sleeve, and lock the blade pressing sleeve so that when the driving member drives the cutter head to rotate, the blade pressing sleeve presses the threaded blade installed in the blade mounting groove, and the driving member drives the cutter head to be processed and formed in one time, which can realize the processing of one thread in a short time, and can improve the efficiency of thread processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0044] Figure 1 A schematic structural diagram of a cutter head disclosed in an embodiment of the present application;

[0045] Figure 2 A BB cross-sectional view of a cutter head disclosed in an embodiment of the present application;

[0046] Figure 3 AA cross-sectional view of a cutter head disclosed in an embodiment of the present application;

[0047] Figure 4 A CC cross-sectional view of a cutter head disclosed in an embodiment of the present application;

[0048] Figure 5 A schematic structural diagram of a blade body disclosed in an embodiment of the present application;

[0049] Figure 6 This is a schematic structural diagram of another blade body disclosed in an embodiment of the present application;

[0050] Figure 7 This is a schematic structural diagram of a blade pressing sleeve disclosed in an embodiment of the present application;

[0051] Figure 8 This is a schematic structural diagram of a sliding sleeve disclosed in an embodiment of the present application;

[0052] Figure 9 This is a schematic structural diagram of an adjusting screw sleeve disclosed in an embodiment of the present application;

[0053] Figure 10 This is a schematic structural diagram of another adjusting screw sleeve disclosed in an embodiment of the present application;

[0054] Figure 11 This is a schematic structural diagram of a blade spring pin disclosed in an embodiment of the present application;

[0055] Figure 12 A schematic structural diagram of a guide plate disclosed in an embodiment of the present application;

[0056] Figure 13 A schematic structural diagram of a fixing plate disclosed in an embodiment of the present application;

[0057] Figure 14 This is a structural schematic diagram of a sleeve pressing block disclosed in an embodiment of the present application;

[0058] Figure 15This is a schematic diagram of the assembly of a cutter head and a threaded blade disclosed in an embodiment of the present application. DETAILED DESCRIPTION

[0059] In order to help those skilled in the art better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0060] In the description of the embodiments of the present application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the embodiments of the present application.

[0061] In the description of the embodiments of the present application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present application based on the specific circumstances.

[0062] When processing threads of pipe fittings with a diameter of 1 / 4 inch, 3 / 8 inch, 9 / 16 inch, 3 / 4 inch or 1 inch at a pressure of more than 140Mpa with existing technology, the thread processing of pipe fittings in the connection of medium and high pressure pipe fittings is mainly done by lathe turning, and 1 / 4 inch, 3 / 8 inch and 9 / 16 inch can be processed by manual die tools. However, the existing manual die tool and lathe turning thread processing require relatively complicated steps, and the efficiency of thread processing is low. Therefore, the embodiment of the present application provides a tool head for processing threads, which can improve the efficiency of thread processing, such as Figure 1 As shown, the details are as follows:

[0063] The cutter head provided in the embodiment of the present application comprises: a cutter body 1, a blade pressing sleeve 2, a sliding sleeve 3 and an adjusting screw sleeve 4; one end of the cutter body 1 is provided with a blade mounting groove, and the other end is provided with a drive shaft mounting hole, the blade mounting groove is used to install a threaded blade, and the threaded blade can slide in the blade mounting groove; the drive shaft mounting hole is used to install a driving member that drives the cutter head to rotate. It is understood that the drive shaft mounting hole can be used to install the drive shaft or can be directly installed on the motor shaft, that is, the driving member can be the drive shaft or the motor shaft, which is not limited to the specific details here. The adjusting screw sleeve 4 is sleeved on the outside of the drive shaft mounting hole away from the driving member, that is, the adjusting screw sleeve 4 is sleeved on the outside of the cutter body 1; the adjusting screw sleeve 4 can move on the outside of the drive shaft mounting hole based on the extension direction of the drive shaft mounting hole. It is understood that the adjusting screw sleeve 4 can slide and move on the outside of the cutter body 1, and the adjusting screw sleeve 4 can stop moving and lock at any position. Specifically, the adjusting screw sleeve 4 can be locked by a screw or a block, which is not limited to the specific details here. The adjusting screw sleeve 4 is provided with a raised portion on the outer side away from the drive member, that is, the side of the adjusting screw sleeve 4 away from the drive shaft mounting hole is provided with a raised portion. One end of the blade pressing sleeve 2 is sleeved on the outer side of the blade mounting groove, which can also be understood as a notch formed by the blade body 1 and the blade pressing sleeve 2. The other end of the blade pressing sleeve 2 is arranged on the outer side of the adjusting screw sleeve 4 away from the drive member and is provided with a groove. The other end of the blade pressing sleeve 2 is placed in close contact with the adjusting screw sleeve 4 and can slide on the adjusting screw sleeve 4. The sliding sleeve 3 is mounted on the outer side of the blade pressing sleeve away from the driving member, and the sliding sleeve 3 is used to drive the blade pressing sleeve 2 to move to the groove of the blade pressing sleeve 2 in the convex portion of the adjusting screw sleeve 4 when sliding; it is understandable that the convex portion of the adjusting screw sleeve 4 is closer to the blade mounting notch of the cutter body 1 relative to the groove of the blade pressing sleeve 2. When the sliding sleeve 3 is pushed to move toward the blade mounting notch side (the threaded blade side), when the sliding sleeve 3 and the blade pressing sleeve 2 are in close contact, the sliding sleeve 3 and the blade pressing sleeve 2 can be pushed simultaneously. When the groove of the blade pressing sleeve 2 moves to the convex portion of the adjusting screw sleeve 4, the convex portion of the adjusting screw sleeve 4 will be embedded in the groove of the blade pressing sleeve 2, so that the blade pressing sleeve 2 is locked to the adjusting screw sleeve 4. The adjusting screw sleeve 4 is used to, when the convex portion of the adjusting screw sleeve 4 is embedded in the groove of the blade pressing sleeve 2, remain in the position outside the drive shaft mounting hole, lock the blade pressing sleeve 2, so that when the driving member drives the cutter head to rotate, the blade pressing sleeve 2 is pressed against the threaded blade installed in the blade mounting groove. It is understandable that when the position of the adjustment screw sleeve 4 is not changed, the position of the blade pressing sleeve 2 will not change. After the blade pressing sleeve 2 presses the thread blade, during the use of the thread cutter head, the blade is subjected to force acting on the cutter body 1 and the blade pressing sleeve 2, and the position of the blade pressing sleeve 2 will not change when the position of the adjustment screw sleeve 4 is not changed, so as to achieve thread processing.

[0064] It can be seen that the cutter head of the embodiment of the present application includes: a cutter body, a blade pressing sleeve, a sliding sleeve and an adjusting screw sleeve; the adjusting screw sleeve is sleeved on the outer side of the drive shaft mounting hole away from the driving member, and the adjusting screw sleeve is provided with a protrusion on the outer side away from the driving member; one end of the blade pressing sleeve is sleeved on the outer side of the blade mounting groove, and the other end is arranged on the outer side of the adjusting screw sleeve away from the driving member and is provided with a groove; the sliding sleeve is sleeved on the outer side of the blade pressing sleeve away from the driving member, and the sliding sleeve is used to drive the blade pressing sleeve to move until the protrusion of the adjusting screw sleeve is embedded in the groove of the blade pressing sleeve when sliding; the adjusting screw sleeve is used to maintain the position outside the drive shaft mounting hole when the protrusion of the adjusting screw sleeve is embedded in the groove of the blade pressing sleeve, locking the blade pressing sleeve so that when the driving member drives the cutter head to rotate, the blade pressing sleeve presses the threaded blade installed in the blade mounting groove, and the driving member drives the cutter head to be processed and formed at one time, which can realize the processing of one thread in a short time, and can improve the efficiency of thread processing. In one feasible way, it is mainly used for the processing of 1 / 4", 3 / 8", 9 / 16", 3 / 4, and 1" pipe connection threads at pressures above 140Mpa. When installed on the corresponding equipment, it can realize automatic thread processing. After being installed on the corresponding equipment, it can complete the processing of a high-pressure pipe thread in a short time, which can greatly improve efficiency. Different from the existing manual die tools and lathe turning processing, the main components of the special processing equipment, after being assembled into a complete set of equipment, can effectively solve the problem of low processing efficiency of special CT threads in the existing industry. When used on the equipment, it can realize the use of motor-driven rapid thread processing, one-time processing and forming, greatly improving production efficiency, and can realize the processing of a section of thread within the preset time. The preset time is relatively short, generally 5 seconds or 6 seconds, which greatly shortens the production time.

[0065] Further, combined Figure 2 、 Figure 5 、 Figure 6 as well as Figure 11The blade body 1 also includes: a spring pin mounting hole 20, a blade spring pin 7, a blade spring 8, a combination screw 6 and a screw hole 24; the spring pin mounting hole 20 is arranged at the first end of the blade mounting slot 19 close to the drive shaft mounting hole 25, the screw hole 24 is arranged through the first end, and the extension direction of the spring pin mounting hole 20 is perpendicular to the penetration direction of the screw hole 24; the blade spring 8 is installed in the spring pin mounting hole 20, one end abuts against the inner wall of the spring pin mounting hole 20, and the other end abuts against the guide hole 38 of the blade spring pin 7; the combination screw 6 is screwed into the screw hole 24, and the protrusion of the combination screw 6 passing through the screw hole 24 abuts against the groove mouth 39 of the blade spring pin 8. When the threaded blade is installed in the blade mounting slot 19, the threaded blade also abuts against the groove mouth 39 of the blade spring pin 8. It is understood that the combination screw 6 is installed in the screw hole 24 to prevent the blade spring pin 7 from falling. The blade spring pin 7 has a guide hole 38 for the blade spring 8, which is used to install the blade spring 8, and a groove 39 is opened to lock the combination screw 6 and the pin of the threaded blade. The blade spring 8 is installed in the guide hole 38, and after the blade pressing sleeve 2 is withdrawn, the threaded blade can be ejected. A blade spring pin installation hole 20 is designed below the blade installation slot 19. After installing the blade spring pin 7 and the blade spring 8, the combination screw 6 is screwed into the screw hole 24 to press one side of the blade spring pin 7 to prevent the blade spring pin 7 from falling. After the whole is installed, the blade automatically pops open in the blade installation slot 19 and constrains the blade to prevent it from sliding in the other direction when the blade is locked.

[0066] Further, combined Figure 7 The blade body 1 further includes: a first spring mounting hole 23, and the blade pressing sleeve 2 further includes: a second spring mounting hole 26; the first spring mounting hole 23 and the second spring mounting hole 26 are arranged correspondingly, and a pressing sleeve spring 9 is provided between the first spring mounting hole 23 and the second spring mounting hole 26; one end of the pressing sleeve spring 9 abuts against the inner hole wall of the first spring mounting hole 23, and the other end abuts against the inner hole wall of the second spring mounting hole 26. It can be understood that the blade body 1 has a first spring mounting hole 23 for mounting the pressing sleeve spring 9, and the blade pressing sleeve 2 has a second spring mounting hole 26 that cooperates with the blade body 1. The pressing sleeve spring 9 is installed on the first spring mounting hole 23 of the blade body 1 and the second spring mounting hole 26 of the blade pressing sleeve 2. After the pressing sleeve spring 9 is installed, the blade pressing sleeve 2 can automatically pop open under the action of the pressing sleeve spring 9. It can be understood that the pressing sleeve spring 9 is installed in the first spring mounting hole 23 of the blade body 1 and the second spring mounting hole 26 of the blade pressing sleeve 2, which can automatically pop open the blade pressing sleeve 2.

[0067] Further, combined Figure 9The drive shaft mounting hole 25 of the cutter body 1 is provided with a first thread 21 on the outside, and the adjusting screw sleeve 4 is provided with a second thread 33 on the inside, near the drive shaft mounting hole 25. The first thread 21 and the second thread 33 cooperate to allow the adjusting screw sleeve 4 to move on the outside of the drive shaft mounting hole 25 by screwing in and out of the thread. It is understood that the cutter body 1 is designed with the first thread 21 that cooperates with the adjusting screw sleeve 4, and the adjusting screw sleeve 4 is designed with the second thread 33 that cooperates with the cutter body 1, so that the adjusting screw sleeve 4 can be moved on the cutter body 1 by screwing in and out of the thread.

[0068] Furthermore, the existing lathe turning process also includes thread rolling machine thread rolling process, however, when the thread rolling machine thread rolling process, the thread surface quality is poor, the processing accuracy is not high, and it is inconvenient to replace the blade, and the blade is large and the cost is high. Figure 7 The blade pressing sleeve 2 also includes: a bevel 27; the bevel 27 is arranged at one end of the blade pressing sleeve 2 near the blade mounting groove 19; the blade pressing sleeve 2 is provided with a bevel 27 that cooperates with the blade, which can ensure that the threaded blade is bounced or tightened on the blade mounting groove 19 of the cutter body 1 when the blade pressing sleeve 2 slides on the cutter body 1. Specifically, the bevel 27 is used to abut the threaded blade when the threaded blade is installed in the blade mounting groove 19. When the blade pressing sleeve 2 moves in the direction close to the blade mounting groove 19, the bevel 27 applies an extrusion force to the threaded blade, driving the threaded blade to move close to the first rotation axis, and the first rotation axis is the central axis of the rotational motion of the cutter head when processing the pipe to be processed; when the blade pressing sleeve 2 moves in the direction away from the blade mounting groove 19, the threaded blade moves away from the first rotation axis based on the force applied by the blade spring 8. When the adjusting screw sleeve 4 can be moved on the cutter body 1 by screwing in and out of the thread, the position of the blade pressing sleeve 2 when tightening the thread blade can be fixed, and the position of the bevel 27 of the blade pressing sleeve 2 when tightening the thread blade can be adjusted, thereby adjusting the depth of the thread processed by the thread blade. Since the thread processing depth of the thread cutter head can be adjusted, the processing accuracy of the overall installation dimension of the thread blade can be greatly reduced, which can significantly reduce the production cost of consumable blades.

[0069] Further, combined Figure 3 、 Figure 9 、 Figure 12 as well as Figure 13The adjusting screw sleeve 4 includes: a guide piece 10, a fixing piece 11, a fixing piece spring 12 and a mounting groove 32; the guide piece 10 and the fixing piece 11 are installed in the mounting groove 32; the guide piece is provided with a third spring mounting hole 41, the fixing piece is provided with a fourth spring mounting hole 43, and the fixing piece spring 12 is arranged between the third spring mounting hole 41 and the fourth spring mounting hole 43; it can be understood that the adjusting screw sleeve 4 is provided with a mounting groove 32 for the guide piece 10 and the fixing piece 11, so that the adjusting screw sleeve 4 can pass through the inner hole 29-1 of the blade pressing sleeve 2 after the guide piece 10 and the fixing piece 11 are installed; the blade pressing sleeve 2 is provided with a groove 28 for making the fixing piece 11 bounce open, so that the fixing piece 11 can bounce into the groove 28 of the blade pressing sleeve 2 under the action of the fixing piece spring 12. The fixed leaf spring 12 is used to eject the fixed leaf 11 when the blade pressing sleeve 2 slides to the point where the groove 28 of the blade pressing sleeve 2 corresponds to the raised step 42 of the fixed leaf 11, so that the raised step 42 of the fixed leaf 11 is embedded in the groove 28 of the blade pressing sleeve 2. At this time, the blade pressing sleeve 2 is locked to the adjusting screw sleeve 4. Specifically, after the guide piece 10 is installed in the installation groove 32 of the adjusting screw sleeve 4, it is integrally installed with the adjusting screw sleeve 4 into the inner hole 29-1 of the blade pressing sleeve 2; and a third spring installation hole 41 is formed in the guide piece 10, and the fixed leaf spring 12 is installed in this third spring installation hole 41. The guide piece 10 is also provided with a raised portion 40 for guiding and positioning when the guide piece 10 is installed. The fixing plate (11) is provided with a fourth spring mounting hole 43, and the fixing plate spring 12 is mounted in the fourth spring mounting hole 43; a raised step 42 is designed, and when the blade pressing sleeve 2 slides, when the groove 28 of the blade pressing sleeve 2 is directly below the raised step 42 of the fixing plate 11, the fixing plate spring 12 can pop out the fixing plate 11, so that the raised step 42 of the fixing plate 11 is embedded in the groove 28 of the blade pressing sleeve 2, thereby locking the sliding of the blade pressing sleeve 2. The fixing plate spring 12 is mounted in the third spring mounting hole 41 and the fourth spring mounting hole 43, and is used to pop up the fixing plate 11.

[0070] Further, combined Figure 7 as well as Figure 8The cutter head of the embodiment of the present application further includes: a ball 5, the blade sleeve 2 further includes: a tapered hole 29, and the sleeve 3 includes: a ramp 31; the ball 5 can be a steel ball or an iron ball, and the specific details are not limited here. The ball 5 is arranged between the tapered hole 29 and the ramp 31, and the tapered hole 29 is arranged in the groove 28 of the blade sleeve 2. Specifically, the tapered hole 29 is arranged at the end of the groove 28 away from the blade body 1, and the top of the tapered hole 29 is close to the fixed plate 11. The ramp 31 is used to push the ball 5 toward the top of the tapered hole 29 when the sleeve 3 slides, so that the ball 5 pushes the raised step 42 of the fixed plate 11 away from the groove 28 of the blade sleeve 2. At this time, the blade sleeve 2 is separated from the adjusting screw sleeve 4. It is understood that the sleeve 3 has a slope 31 for sliding the ball 5. When the sleeve 3 slides, the ball 5 is pushed by the slope 31 of the sleeve 3 in the tapered hole 29, moving up and down along the tapered hole 29, thereby causing the ball 5 to move up and down within the tapered hole 29 of the blade pressing sleeve 2. When the ball 5 is pushed by the slope 31 of the sleeve 3 and moves upward along the tapered hole 29 of the blade pressing sleeve 2, it can lift the fixed plate 11, compress the fixed plate spring 12, and reset the fixed plate 11. It is understood that the sleeve 3 also has a sliding groove 30 for connecting to the automatic thread processing equipment, which allows the sleeve 3 to slide when the automatic thread processing equipment is operated; when the sleeve 3 slides along the blade pressing sleeve 2 toward the blade side, it can drive the blade pressing sleeve 2 to slide toward the blade side, thereby tightening the thread blade.

[0071] In one feasible method, when the slope 31 of the sleeve 3 moves to just below the tapered hole 29 of the blade sleeve 2, the steel ball 5 in the tapered hole 29 falls on the slope 31 of the sleeve 3, and the blade sleeve 2 and the sleeve 3 continue to move toward the blade side. When the groove 28 of the blade sleeve 2 moves to the raised step 42 of the fixed plate 11, the fixed plate spring 12 pops up the fixed plate 11, so that the raised step 42 of the fixed plate 11 is embedded in the groove 28 of the blade sleeve 2. Most of the fixed plate 11 is installed on the mounting groove 32 of the adjusting screw sleeve 4. When the position of the adjusting screw sleeve 4 is unchanged, the position of the blade sleeve 2 will not change either, and the threaded blade is subjected to force by the blade sleeve 2 to be locked, so as to realize the processing of threads and tighten the threaded blade. The rational structure of the equipment enables, when the thread blade is in the processing state, the rotation of the thread blade can drive the workpiece to move, so that the clamping part of the workpiece presses against the sliding sleeve 3 and moves toward the opposite side of the blade (i.e., the opposite direction of the blade mounting notch), or the rotation of the blade drives the cutter head to move, so that the sliding sleeve 3 presses against the clamping side part of the workpiece, so that the sliding sleeve moves relative to the thread blade in the opposite direction of the blade. When the sliding sleeve 3 often moves in the opposite direction of the blade, the steel ball 5 is lifted by the slope 31 of the sliding sleeve 3, moves upward along the tapered hole 29 of the blade pressing sleeve 2, and lifts the fixed plate 11. When the raised step 42 of the fixed plate 11 disengages the groove 28 of the blade pressing sleeve 2, the blade pressing sleeve 2 exits the state locked in the adjustment screw sleeve 4; the blade pressing sleeve 2 will be opened toward the opposite side of the blade under the spring force of the pressing sleeve spring 9. After the blade pressing sleeve 2 is opened, the thread blade is opened under the action of the blade spring 8, and the thread blade is ejected after the workpiece thread processing is completed. It can be seen that the tool head of the embodiment of the present application can realize rapid processing of CT threads and one-time turning and forming. After turning and forming, the tool head can automatically pop open at the designed length, and the automatic pop-up function can be realized after the thread processing is completed.

[0072] Furthermore, in order to make the structure more stable during driving, Figure 5 as well as Figure 10As shown, the wall of the drive shaft mounting hole 25 is provided with a first jackscrew mounting hole 22, which is used to install a first tightening screw, and the protrusion of the first tightening screw is connected to the driving member to tighten the cutter body 1 to the driving member; it is understood that when the driving member is a motor, after the first tightening screw is installed in the first jackscrew mounting hole 22 to tighten, the motor can be used to directly drive the cutter head to rotate. The sleeve wall of the adjustment screw sleeve 4 is provided with a second jackscrew mounting hole 37, which is used to install a second tightening screw 16, and the protrusion of the second tightening screw 16 is connected to the outer wall of the drive shaft mounting hole 25 to tighten the adjustment screw sleeve 4 to the drive shaft mounting hole 25. It is understood that the thread position of the adjustment screw sleeve 4 is designed with the second jackscrew mounting hole 37. After the position of the adjustment screw sleeve 4 is determined, the second tightening screw 16 is installed in the second jackscrew mounting hole 37 to tighten the outer wall of the cutter body 1, so that the adjustment screw sleeve 4 is locked to the outer wall of the cutter body 1 when it is not displaced. It can be understood that the second tightening screw 16 is installed in the second jackscrew installation hole 37 of the adjusting screw sleeve 4, which can prevent the adjusting screw sleeve 4 from slipping during use of the thread processing tool head.

[0073] Further, combined Figure 4 、 Figure 10 as well as Figure 14The adjusting screw sleeve 4 also includes: a pressing sleeve stopper 13, a stopper mounting groove 34, a stopper fixing pin 15, a fixing pin mounting hole 35, a stopper spring 14 and a stopper spring mounting hole 36; the stopper mounting groove 34 is arranged at the end of the adjusting screw sleeve 4 away from the blade pressing sleeve 2, the fixing pin mounting hole 35 is arranged on the side wall of the stopper mounting groove 34, and the stopper fixing pin 15 is installed in the fixing pin mounting hole 35; the pressing sleeve stopper 13 is arranged in the stopper mounting groove 34 and is rotatably mounted on the stopper fixing pin 15, that is, the pressing sleeve stopper 13 can rotate around the stopper fixing pin 15. The block fixing pin 15 can be an ordinary cylindrical pin, which can make the pressing sleeve stopper 13 rotate around the block fixing pin 15 after installation, and will not fall off after being installed in the fixing pin mounting hole 35 of the adjusting screw sleeve 4; the pressing sleeve stopper 13 can be designed as an arc-shaped piece with a block fixing pin hole 44. After the block fixing pin 15 is installed, the pressing sleeve stopper 13 rotates on the pressing sleeve stopper mounting groove 34 of the adjusting screw sleeve 4, and after reasonable size design, the pressing sleeve stopper 13 cannot rotate away from the adjusting screw sleeve 4 as a whole when rotating. A stopper spring mounting hole 36 is provided at one end of the stopper mounting slot 34. One end of the stopper spring 14 is mounted in the stopper spring mounting hole 36, and the other end is connected to the press sleeve stopper 13. The stopper spring 14 is mounted in the stopper spring mounting hole 36 of the adjusting screw 4 and is used to eject the press sleeve stopper 13. Since the press sleeve stopper 13 is designed to be unable to be completely ejected when the adjusting screw 4 is engaged, the stopper spring 14 can eject the press sleeve stopper 13 to partially block the ejection of the blade press sleeve 2. The stopper spring 14 is used to apply an elastic force to the press sleeve stopper 13, driving one end of the press sleeve stopper 13 to rotate axially away from the stopper mounting slot 34 about the stopper fixing pin 15, so that one end of the press sleeve stopper 13 protrudes out of the stopper mounting slot 34. It is understood that after the stopper spring 14 is installed, the press sleeve stopper 13 can be ejected and rotated axially about the stopper fixing pin 15 in the direction of the elastic force of the stopper spring 14. The sleeve stopper 13 is used to, when the cutter head does not need to replace the threaded blade, the blade sleeve 2 ejected by the sleeve spring 9 will abut against the protruding end of the sleeve stopper 13, limiting the position where the blade sleeve 2 is ejected by the sleeve spring 9.

[0074] In one practicable manner, when the cutter head needs to disassemble and assemble the thread blade, when the thread blade is in the state of being ejected, the portion of the sleeve stopper 13 that is ejected by the stopper spring 14 is pressed, and the blade sleeve 2 will continue to expand under the spring force of the sleeve spring 9 until it stops. In this state, the blade sleeve 2 is separated from the blade mounting groove 19, and the thread blade can be easily removed. When reinstalling the thread blade, the blade sleeve 2 can be reset to the blade ejected state by pushing the cutter sleeve 3. Due to the inconsistency in the processing accuracy of each pair of blades, the thread depth of the reinstalled thread blade will be shallower or deeper. At this time, pushing the sliding sleeve 3 can put the cutter head in the blade locking state, loosen the second tightening screw 16, and the adjustment screw sleeve 4 can be rotated. When adjusting screw sleeve 4 away from the blade side, blade pressing sleeve 2 is locked in adjusting screw sleeve 4 by fixed plate 11, and blade pressing sleeve 2 will also be away from the blade side. Since blade pressing sleeve 2 is fixed at an angle with the bevel 27 of blade matching, the thread blade pressing amount decreases, so the thread depth becomes shallower; when adjusting screw sleeve 4 closes to the blade side, the position where blade pressing sleeve 2 is fixed by fixed plate 11 will also be close to the blade side. Blade pressing sleeve 2 will also be close to the blade side. Since blade pressing sleeve 2 is fixed at an angle with the bevel 27 of blade matching, the thread blade pressing amount increases, so the thread depth becomes deeper. After the depth is adjusted appropriately, the second tightening screw 16 is locked to prevent the adjusting screw sleeve 4 from slipping during use of the thread processing cutter head. Since the thread depth can be adjusted, the processing accuracy of the blade can be significantly reduced, effectively reducing the production cost of the consumable blade.

[0075] Further, such as Figure 15 As shown, the blade body 1 further includes: a blade body pressure block 17 and a pressure block screw 18; the blade body pressure block 17 is mounted on the side of the blade mounting slot 19 away from the drive shaft mounting hole 25; the pressure block screw 18 is provided on the blade body pressure block 17 and is used to lock the blade body pressure block 17 to the blade body 1. It can be understood that the blade body pressure block 17 is mounted on the top of the blade mounting slot of the blade body 1 and is locked using the pressure block screw 18.

[0076] In the embodiment of the present application, one cutter head can be adapted to a variety of thread cutters. When in use, only the blade needs to be changed to process threads of different specifications, which can reduce the production cost of the equipment, reduce the size of the equipment and the number of parts; and the function is realized in the form of a fully mechanical structure, and has no impact on harsh environments.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, rather than to limit them. Although the embodiments of the present application have been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and description of the embodiments of the present application.

Claims

1. A cutter head for processing threads, characterized in that: include: Cutter body, blade pressing sleeve, sliding sleeve and adjusting screw sleeve; One end of the cutter body is provided with a blade mounting slot, and the other end is provided with a drive shaft mounting hole, the blade mounting slot is used to mount a threaded blade, and the drive shaft mounting hole is used to mount a driving member that drives the cutter head to rotate; the driving member includes a motor shaft; The adjusting screw sleeve is sleeved on the outer side of the drive shaft mounting hole away from the driving member, and the adjusting screw sleeve can move on the outer side of the drive shaft mounting hole based on the extension direction of the drive shaft mounting hole, and the outer side of the adjusting screw sleeve away from the driving member is provided with a protrusion; One end of the blade pressing sleeve is sleeved on the outside of the blade mounting groove, and the other end is arranged on the outside of the adjusting screw sleeve away from the driving member and is provided with a groove; The sliding sleeve is sleeved on the outer side of the blade pressing sleeve away from the driving member, and the sliding sleeve is used to drive the blade pressing sleeve to move until the protrusion of the adjusting screw sleeve is embedded in the groove of the blade pressing sleeve when sliding; The adjusting screw sleeve is used to maintain a position outside the drive shaft mounting hole when the protrusion of the adjusting screw sleeve is embedded in the groove of the blade pressing sleeve, and lock the blade pressing sleeve so that when the driving member drives the cutter head to rotate, the blade pressing sleeve presses the threaded blade installed in the blade mounting groove.

2. The cutter head according to claim 1, characterized in that The blade body further comprises: a spring pin mounting hole, a blade spring pin, a blade spring, a combination screw and a screw hole; The spring pin mounting hole is provided at a first end of the blade mounting slot close to the drive shaft mounting hole, the screw hole is provided through the first end, and an extending direction of the spring pin mounting hole is perpendicular to a penetrating direction of the screw hole; The blade spring is installed in the spring pin installation hole, with one end abutting against the inner wall of the spring pin installation hole and the other end abutting against the guide hole of the blade spring pin; The combination screw is screwed into the screw hole, and the protrusion of the combination screw passing through the screw hole abuts against the groove of the blade spring pin.

3. The cutter head according to claim 1, wherein: The blade body further comprises: a first spring mounting hole, and the blade pressing sleeve further comprises: a second spring mounting hole; The first spring mounting hole and the second spring mounting hole are correspondingly arranged, and a compression sleeve spring is provided between the first spring mounting hole and the second spring mounting hole; The compression sleeve spring has one end abutting against the inner wall of the first spring mounting hole, and the other end abutting against the inner wall of the second spring mounting hole, and is used for ejecting the blade compression sleeve from the cutter body.

4. The cutter head according to claim 1, wherein: The outer side of the drive shaft mounting hole of the cutter body is provided with a first thread, and the inner side of the adjusting screw sleeve close to the drive shaft mounting hole is provided with a second thread; The first thread cooperates with the second thread to enable the adjusting screw sleeve to move on the outer side of the drive shaft mounting hole by screwing in and out of the thread.

5. The cutter head according to claim 1, wherein: The blade pressing sleeve further comprises: a bevel; The bevel is provided at one end of the blade pressing sleeve close to the blade mounting groove; The bevel is used to abut the threaded blade when the threaded blade is installed in the blade mounting groove. When the blade sleeve moves in a direction close to the blade mounting groove, the bevel applies an extrusion force to the threaded blade, driving the threaded blade to move close to the first rotation axis. The first rotation axis is the central axis of the rotational motion of the cutter head when processing the pipe to be processed.

6. The cutter head according to claim 1, wherein: The adjusting screw sleeve comprises: a guide piece, a fixing piece, a fixing piece spring and a mounting groove; The guide plate and the fixing plate are installed in the installation groove; The guide plate is provided with a third spring mounting hole, the fixing plate is provided with a fourth spring mounting hole, and the fixing plate spring is arranged between the third spring mounting hole and the fourth spring mounting hole; The fixing plate spring is used to pop out the fixing plate when the blade pressing sleeve slides to the point where the groove of the blade pressing sleeve corresponds to the raised step of the fixing plate, so that the raised step of the fixing plate is embedded in the groove of the blade pressing sleeve.

7. The cutter head according to claim 6, characterized in that Also includes: The blade pressing sleeve further comprises: a tapered hole, and the sliding sleeve comprises: a slope; The sphere is arranged between the tapered hole and the slope, the tapered hole is arranged in the groove of the blade pressing sleeve, and the top of the tapered hole is close to the fixing plate; The ramp is used to push the ball to move toward the top of the tapered hole when the sliding sleeve slides, so that the ball pushes the raised step of the fixing plate away from the groove of the blade pressing sleeve.

8. The cutter head according to claim 1, wherein: A first jackscrew mounting hole is provided on the wall of the drive shaft mounting hole, and the first jackscrew mounting hole is used to install a first tightening screw, and the protruding portion of the first tightening screw is pressed against the drive member to tighten the cutter body to the drive member; The sleeve wall of the adjusting screw sleeve is provided with a second jackscrew mounting hole, and the second jackscrew mounting hole is used to install a second tightening screw, and the protrusion of the second tightening screw is in contact with the outer wall of the drive shaft mounting hole to tighten the adjusting screw sleeve to the drive shaft mounting hole.

9. The cutter head according to claim 1, wherein: The adjusting screw sleeve further comprises: a pressing sleeve stopper, a stopper mounting groove, a stopper fixing pin, a fixing pin mounting hole, a stopper spring and a stopper spring mounting hole; The stopper mounting groove is provided at one end of the adjusting screw sleeve away from the blade pressing sleeve, the fixing pin mounting hole is provided on the side wall of the stopper mounting groove, and the stopper fixing pin is installed in the fixing pin mounting hole; The pressing sleeve stopper is arranged in the stopper mounting groove and is rotatably mounted on the stopper fixing pin; The stopper spring mounting hole is provided at one end of the stopper mounting groove, one end of the stopper spring is mounted in the stopper spring mounting hole, and the other end is connected to the pressing sleeve stopper; The stopper spring is used to apply elastic force to the pressing sleeve stopper, driving one end of the pressing sleeve stopper to rotate axially away from the stopper mounting groove with the stopper fixing pin as the center, so that one end of the pressing sleeve stopper protrudes from the stopper mounting groove.

10. The cutter head according to claim 1, wherein: The cutter body further comprises: a cutter body pressing block and a pressing block screw; The blade body pressing block is installed on a side of the blade mounting slot away from the drive shaft mounting hole; The pressing block screw is arranged on the cutter body pressing block and is used to lock the cutter body pressing block to the cutter body.

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