CN219310171U

CN219310171U - Profiling milling cutter bar taking existing curved surface of to-be-machined part as profiling

Info

Publication number: CN219310171U
Application number: CN202223339502.6U
Authority: CN
Inventors: 周湘衡; 谢琴
Original assignee: SINOSTEEL HENGYANG MACHINERY CO Ltd
Current assignee: SINOSTEEL HENGYANG MACHINERY CO Ltd
Priority date: 2022-12-14
Filing date: 2022-12-14
Publication date: 2023-07-07
Anticipated expiration: 2032-12-14

Abstract

The utility model relates to a profiling milling cutter bar taking the existing curved surface of a workpiece to be processed as a profiling, which comprises a cutter bar, a milling cutter and a round roller, wherein the cutter bar, the milling cutter and the round roller are combined into a whole by a driving end connected with a milling machine main shaft and a large and small head variable-diameter extending end, and under the action of external force, the outer cylindrical surface of the round roller is tightly contacted with the existing curved surface of the workpiece to be processed, so that the profiling milling cutter bar winds the existing curved surface of the workpiece to be processed, and makes autorotation and feeding movement by taking the radius of the outer cylindrical surface of the round roller as an equidistant line, thereby the milling cutter cuts the workpiece to be processed. That is to say, the outer cylindrical surface of the round roller on the profiling milling cutter bar is tightly attached to the existing special-shaped curved surface of the workpiece to be machined for rotary rolling, and a proper pressure is always applied to the existing curved surface of the workpiece to be machined, so that the milling cutter is carried out with the follow-up profiling motion along the equidistant line of the special-shaped curved surface of the workpiece to be machined, and the milling cutter is cut in a planetary motion around the track of the existing special-shaped curved surface of the workpiece to be machined.

Description

Profiling milling cutter bar taking existing curved surface of to-be-machined part as profiling

Technical Field

The utility model relates to a profiling milling cutter bar taking the existing curved surface of a workpiece to be machined as a profiling, which is mainly used for cutting and processing chamfer angles, grooves, step surfaces and the like on a special-shaped curved surface.

Background

The chamfering, grooves and equidistant curved surfaces (step surfaces) on the prior special-shaped curved surfaces are generally processed after the special-shaped curved surfaces are processed in a numerical control mode, so that the purposes of solving the bottleneck of a numerical control machine tool relatively less and reducing the production cost are achieved, the large-batch processing can be generally achieved by adopting a profiling milling method, and the single-piece small-batch production is directly processed in the numerical control mode. The main disadvantages are: for direct processing on numerical control, the cost is high because a key numerical control machine tool is occupied, and operators need to master numerical control skills; for profiling processing, the cylindrical rolling working surface of the cutter neck is easy to wear and slide on the profiling at high speed for a long time, so that the rapid processing precision of the worn working surface of the profiling is difficult to ensure, the cylindrical rolling working surface of the cutter and the working surface of the profiling are subjected to hardening treatment for prolonging the service life, and finally the cutter and the profiling are invalid due to wear and cannot be used; in order to ensure the hardness of the cylindrical rolling surface of the cutter neck, the cutter is generally manufactured by adopting integral alloy steel; the production cycle of the profiling and the cutter is longer, the cost is higher, the abrasion consumption of the cutter is large, and the labor intensity is high.

The profile milling method is to make a profile identical or similar to the shape of the workpiece, by means of which the end mill is always fed along its profile line, so that an accurate curve profile is obtained. The profiling milling can be carried out on the vertical milling machine by adopting manual feeding and also can be carried out by adopting motor feeding. The hand feed profile milling is a method of milling by mounting a workpiece and a profile together on a fixture body and by hand feed so that the outer circle of a tool neck is in close contact with the curved profile of the profile.

Disclosure of Invention

The utility model aims to provide the profiling milling cutter bar which is long in service life, low in cost, flexible and convenient to use, high in production efficiency and strong in universality and is used for processing the chamfer angle, the groove and the equidistant curved surface on the special-shaped curved surface, and the existing curved surface of a workpiece to be processed is used as a profiling.

The technical scheme of the utility model is as follows: the profiling milling cutter bar comprises a cutter bar, a milling cutter and a round roller, wherein the cutter bar is combined with a driving end connected with a main shaft of a machine tool and an extending end with a variable diameter of a large head into a whole, the outer cylindrical surface of the round roller is tightly contacted with the existing curved surface of a workpiece to be machined under the action of external force, so that the profiling milling cutter bar winds the existing curved surface of the workpiece to be machined, and rotates and moves in a feeding way by taking the radius of the outer cylindrical surface of the round roller as an equidistant line, thereby the milling cutter cuts the workpiece to be machined.

By adopting the technical scheme, the cutter bar is preferably a reducing rod at the extending end of the cutter bar so as to improve the rigidity and the bending resistance of the cutter bar because the cutter bar is subjected to the cutting force and the force of tightly contacting the outer cylindrical surface of the round roller with the existing curved surface of the workpiece to be machined; the radius of the outer cylindrical surface of the round roller is required to be smaller than the minimum radius of curvature of the concave part of the existing curved surface of the workpiece to be machined, otherwise, the concave part of the curved surface of the workpiece to be machined has the phenomenon that part of cutting amount is not cut or is cut less, the radius of the outer cylindrical surface of the round roller cannot be too large, and the cutting part of the milling cutter extends out too long in the radial direction, so that the jumping amount of the milling cutter is increased, and the bending strength is influenced.

By adopting the technical scheme, the to-be-machined workpiece is provided with the curved surface as the profiling, the round roller is the neck of the milling cutter, the round roller is replaceable after being worn, compared with a general profiling method, the neck and the outer circle of the profiling end milling cutter are worn, the edge part is good, in order to ensure the shape precision of a workpiece, the neck and the edge part of the profiling end milling cutter are required to be ground together, the service life of the profiling end milling cutter is shortened, the profiling, a clamp body and the profiling end milling cutter are obviously not required, only the edge part of the milling cutter and a supporting body (cutter bar) thereof are required, the to-be-machined workpiece is not required to be provided with a pin hole connected with the profiling because of the absence of the profiling, when the to-be-machined workpiece is longer (beyond the length of a workbench), the profiling is not limited by the length of the profiling, a sectional movement and sectional machining mode can be adopted, so that a large and long workpiece can be machined by a small machine tool, and the profiling is a plate-shaped tool, and the too large long machining and the stock tube process are easy to deform, and the manufacturing is difficult; saving special labor, clamps and cutting tools and reducing manufacturing cost; because the corresponding special equipment is not needed, the device is flexible to use and convenient to adjust, saves auxiliary time, has high work efficiency, is suitable for single-piece and batch production, and can respond quickly.

By adopting the technical scheme, as the method is the same as a general profiling method, the training of operators is not needed, so the operation is simple, the grasping is easy, and other special technological equipment and skill requirements are not needed.

By adopting the technical scheme, the existing curved surface of the workpiece to be machined is used as a profiling, so that the application range of the profiling milling cutter rod can be further extended in technology, namely, the technological curved surface is prefabricated in technology, for example, the residual part which needs to be removed in the post-breaking procedure can be utilized, the curved surface is machined by a numerical control machine tool, and the numerical control machine tool is used as the profiling of the pre-machined (technological) curved surface of the workpiece to be machined, so that a large number of final curved surfaces needing to be machined are finished by a common milling machine, and the machining load of the numerical control machine tool is reduced; the machine tool can also be matched with Z-axis feeding to obtain equidistant curved surfaces (step surfaces) of the curved surfaces of the workpieces to be machined and widened grooves, so that the function of the machine tool is played, the application range of the profiling milling cutter bar is enlarged, the production rhythm of the machine tool is balanced, and the manufacturing cost is reduced.

The utility model further adopts the technical scheme that: the round roller is a radial contact bearing or an inner concentric disc and an outer concentric disc.

By adopting the technical scheme, the radial contact bearing is a standard part for hardening treatment, is convenient to obtain, can roll between the inner ring and the outer ring, has small friction resistance, almost has no abrasion to the curved surface of a formed (finished) workpiece, has high durability, can use higher cutting dosage so as to improve the cutting efficiency, and can be embedded with a hardened sleeve if necessary; the self-made part with the outer circles of the inner and outer concentric discs needing hardening treatment has the advantages that the outer circle size can be matched according to a cutter, such as a multi-tooth disc milling cutter; in order to avoid the adverse effect of the chips falling into the circular roller and the existing curved surface of the workpiece to be machined, the circular roller is preferably arranged above the cutter.

The utility model further adopts the technical scheme that: the radial contact bearing is a deep groove ball bearing.

By adopting the technical scheme, the deep groove ball bearing is preferably a deep groove ball bearing with a dust cover or a deep groove ball bearing with a sealing ring, so that chips are prevented from falling into the bearing to cause failure; the deep groove ball bearing belongs to standard components, is convenient to obtain materials, is resistant to abrasion, is less in maintenance, is low in price, can reduce abrasion to a machined curved surface of a workpiece by adopting the rolling bearing, and can prolong the service life.

The utility model further adopts the technical scheme that: the milling cutter is a multi-tooth disc milling cutter or a strip single-tooth cutter.

By adopting the technical scheme, the multi-tooth disc milling cutter can be regrinded for a plurality of times, the cutter has high durability, small roughness of a processing surface and stable quality, but the production period is longer and the price is more expensive, standard outsourcing parts or old (residual) parts can be utilized for remanufacturing, the outer diameter size of the cutter is certain, and the size of the cutter is reduced after regrinding for a plurality of times; the strip-shaped single-tooth knife is convenient and cheap in material taking, can be used for outsourcing GB4211-84 high-speed steel turning tool strips to be reformed, and can also be used by utilizing strip-shaped knife residues or tails and the like, the radial extension of the knife on the knife bar can be adjusted after the strip-shaped single-tooth knife is regrinded (such as a traditional skill knife is knocked, namely, after the knife is pre-screwed, the knife is knocked to move and then screwed again for use), and the workpiece geometry and the knife utilization rate are ensured to be high so as to reduce the knife consumption.

The utility model further adopts the technical scheme that: the tooth edges of the multi-tooth disc milling cutter are provided with the chip dividing grooves, and the positions of the adjacent tooth edge chip dividing grooves are staggered with each other and the number of the chip dividing grooves is different.

By adopting the technical scheme, the profiling milling cutter rod has relatively smaller diameter, is influenced by cutting force, can cause chatter and even break when the cutting force is larger, and can divide wide cutting chips into narrow cutting chips to reduce the deformation of the cutting chips, reduce the cutting force and chatter, facilitate chip removal, heat dissipation and cooling, process with higher cutting quantity and improve the cutting efficiency, the cutter durability and the surface quality; the positions of the adjacent tooth edge chip dividing grooves are staggered, so that the chip dividing grooves are conveniently arranged, the number of grooves on each tooth edge is reduced, the concave-convex cutting tooth is guaranteed to have certain strength, the cutting edge is convenient to grind, the continuity of machining surfaces such as grooves or chamfers can be guaranteed, wider chips are divided into narrower chips, and the cutting condition is further improved; because the number of the tooth edge chip-dividing grooves is different, the cutting force and vibration on the tooth edges are different, resonance is avoided, the cutting condition is further improved, and the processing with large cutting quantity and the processing surface quality improvement are facilitated.

The utility model further adopts the technical scheme that: when the milling cutter is the multi-tooth disc milling cutter, the profiling milling cutter bar further comprises a key, a space ring, a gasket and a compression nut which are matched with the multi-tooth disc milling cutter;

when the milling cutter is the bar-shaped single-tooth cutter, the profiling milling cutter bar further comprises a square through hole which is radially arranged on the cutter bar along the cutter bar rotation center line and is matched with the cross section of the bar-shaped single-tooth cutter, one end of the square through hole is provided with an internal thread which is provided with an adjusting stop screw, the internal thread through hole is perpendicular to the square through hole and is radially provided with a setting screw for tool compression on the cutter bar rotation center line, the adjusting stop screw and the head end face are centripetally inscribed with an equally dividing indication straight line, a number and the setting screw for tool compression, as shown in fig. 1 and 2, a datum indication straight line is inscribed at the internal thread inlet of one end of the square through hole along the cutter bar center line axial direction, and the equally dividing indication straight line and the number are inscribed with the adjusting stop screw and the head end face centripetally to form a marking, reading and stopping device for adjusting the radial extension of the tool.

The adjusting stop screw (comprising inscription equal division indication straight line, number and the like) in the technical scheme is adopted, so that the radial extension of the cutter on the cutter bar is convenient to finely adjust, and meanwhile, the cutter can be machined by using larger cutting quantity; when the diameter of the cutter bar is smaller, the traditional skill of 'knocking the cutter' can be adopted to finely adjust the radial extension of the cutter on the cutter bar when the adjusting stop screw is inconvenient to set, and the 'knocking the cutter' process is adopted, namely, after the cutter is pre-screwed, the cutter is knocked to move in the square through hole, and then the cutter is screwed again for use.

The utility model further adopts the technical scheme that: the adjusting stop screw is a hexagon socket head cylinder end set screw with fine threads, and the set screw is a square head cylinder end set screw with fine threads.

By adopting the technical scheme, the fine thread has good self-locking property, and the radial elongation precision of the adjusting tool for adjusting the stop screw is higher; the exposed heads of the set screw and the adjustment set screw cannot pass beyond the body portion of the milling cutter to avoid interference.

The beneficial effects of the utility model are as follows: the machining bottleneck of the numerical control machine tool is solved, and the large and long workpieces can be machined in a sectional moving and sectional machining mode because the machining bottleneck is not limited by the length of the profiling die, so that the production operation of the machine tool is balanced, and the cost is reduced; the milling machine has the advantages of flexible and convenient use, simple structure, high work efficiency, strong universality and long service life, can be operated mechanically and manually, and expands the functions of the milling machine. As the method is the same as a general profiling milling method, the method is simple to operate and easy to master, does not need other special technological equipment and skills, and simultaneously saves a special tool profiling tool, a clamp body and a profiling end mill.

Drawings

FIG. 1 is a schematic view of the chamfering and grooving of the existing curved surface of a workpiece to be machined according to the present utility model

FIG. 2 is a schematic view in the k-direction of the square through-hole of FIG. 1 where the adjusting stop screw is located

Detailed Description

Description of the embodiments

The profiling milling cutter bar 1 comprises a cutter bar 11, a milling cutter 12 and a round roller 13, wherein the cutter bar 11, the milling cutter 12 and the round roller 13 are combined into a whole by a driving end connected with a milling machine main shaft and an extending end with a variable diameter of a large head, and under the action of external force, an outer cylindrical surface 131 of the round roller 13 is tightly contacted with the existing curved surface of the workpiece, so that the profiling milling cutter bar 1 winds the existing curved surface of the workpiece, and performs autorotation and feeding movement by taking the radius of the outer cylindrical surface 131 of the round roller 13 as an equidistant line, thereby the milling cutter 12 cuts the workpiece. The external force drives the workbench or the main shaft to move, so that the outer cylindrical surface 131 of the round roller 13 on the profiling milling cutter bar 1 is clung to the existing special-shaped curved surface of the workpiece to be processed to rotate and roll, and a proper pressure is always applied to the existing curved surface of the workpiece to be processed, and the milling cutter 12 is carried along with the profiling motion of the 'follow-up' along the equidistant line of the special-shaped curved surface of the workpiece to be processed, so that the milling cutter 12 carries out 'planetary' motion around the track of the existing special-shaped curved surface of the workpiece to be processed to cut.

The further technical scheme is as follows: the round roller 13 is a radial contact bearing or an inner concentric disc and an outer concentric disc.

The further technical scheme is as follows: the radial contact bearing is a deep groove ball bearing.

The further technical scheme is as follows: the milling cutter 12 is a multi-tooth disc milling cutter 12A or a bar-shaped single-tooth cutter 12B.

The further technical scheme is as follows: the tooth edges of the multi-tooth disc milling cutter 12A are provided with chip dividing grooves, and the positions of the chip dividing grooves of adjacent tooth edges are staggered with each other and the number of the chip dividing grooves is different.

The further technical scheme is as follows: when the milling cutter 12 is the multi-tooth disc milling cutter 12A, the profiling milling cutter bar 1 further comprises a key 14, a space ring 15, a gasket 16 and a compression nut 17 which are matched with the multi-tooth disc milling cutter on the cutter bar 11;

when the milling cutter 12 is the bar-shaped single-tooth cutter 12B, the profiling milling cutter bar 1 further comprises a square through hole 18 which is radially arranged in the middle of the cutter bar 11 along the cutter bar rotation center line and is matched with the cross section of the bar-shaped single-tooth cutter 12B, one end of the square through hole is provided with an internal thread 112 which is provided with an adjusting stop screw 19, a through internal thread through hole 113 which is perpendicular to the square through hole 18 and is radially provided with a fastening screw 20 for pressing the cutter on the cutter bar 11 rotation center line, the adjusting stop screw 19 and the head end face centripetal nameplate are provided with 12 equal indication straight lines 191, arabic numerals 192, the fastening screw 20 for pressing the cutter is provided with 12 equal division indication straight lines 192, and the movement amount of each scale adjusting cutter is the pitch t of the adjusting stop screw 19 divided by 12, so as to facilitate the accurate adjustment of the radial extension of the cutter and stop the cutter, and a reference indication straight line 111 is engraved at the inlet of the internal thread 112 at one end of the square through hole 18 along the axial direction of the center line, and a equal division of 12 equal division of the adjusting straight lines 191 and the equal division of the cutter radial extension of the Arabic numerals 192 and the equal division of the adjustment straight lines for the cutter.

In the single tooth bar cutter, the direction of the force applied by the set screw is toward the front face of the front corner of the cutter, so that the internal thread of the set screw for pressing the cutter is arranged on the rotation center line of the cutter bar, and penetrates through the internal thread through hole of the whole cutter bar to adapt to the direction of the force applied by the set screw. In this embodiment, 12 equal-division indication lines are marked on the end face of the head of the adjusting stop screw 19 in the center for clarity of illustration.

Still further technical scheme is: the adjusting stop screw 19 is a hexagon socket head cylinder end set screw with fine thread, and the set screw 20 is a square head cylinder end set screw with fine thread.

The specific implementation steps are as follows: as shown in fig. 1, according to the minimum radius of curvature of the concave portion of the existing curved surface of the workpiece to be machined, the chamfer or groove to be machined, etc., a milling cutter and a round roller 13 are selected, firstly, a strip-shaped single-tooth cutter 12B is adjusted to an appropriate radial extension on the cutter bar 11 according to the outer diameter 131 and the cutting depth of the outer cylindrical surface of the round roller 13 (preferably a bearing), or the outer diameter of a multi-tooth disc milling cutter 12A is matched according to the round roller and the cutting depth, the length of a spacer 15 is selected to enable the distance between the two milling cutters to meet the drawing requirement, a screw and a nut are screwed to fix the cutter, then the profiling cutter bar 1 is fixed in an inner cone hole of a main shaft of a milling head of a vertical milling machine (such as an X52K type) and then is clamped and fixed on a milling machine table, the cutting edge of the strip-shaped single-tooth cutter and the chamfering part of the workpiece are positioned at an appropriate position, according to the shape (trend) and the technological requirement of the existing curved surface to be machined, and feeding of a longitudinal (X axis) and transverse (Y axis) feeding is controlled to enable the vertical working table to move horizontally, so that the profiling cutter bar 1 is enabled to rotate along with the curved surface of the profiled cutter bar to roll along the profiled curved surface of the cutter to be profiled along with the profiled surface of the profiled cutter. According to the trial cutting condition, the lifting handle (Z axis) is properly rotated to vertically move the workbench or the stop screw 19 is adjusted to finely adjust the feeding amount and the distance between the two milling cutters, or the feeding amount and the distance between the two milling cutters are adjusted at the same time, so that the machining geometric dimension is ensured. When the workpiece is longer, the workpiece can be processed in a sectional manner by sectional movement.

The following four modes are adopted for controlling the feeding of the machine tool:

1. the two hands simultaneously rotate the longitudinal (X-axis) handle and the transverse (Y-axis) handle to horizontally move the workbench, so that the labor intensity is high.

2. The manual operation handle and the motor-driven feeding feed enable the workbench to move horizontally, so that the labor intensity is high.

3. The longitudinal (X axis) or transverse (Y axis) feed screw in the vertical milling machine is removed and extracted, one end of a rope is fixedly connected with the workbench in the moving direction of the extracted feed screw workbench, the other end of the rope passes through the fixed pulley and is fixedly connected with a pre-tightening mechanism (such as a heavy object), the pre-tightening mechanism applies constant force and drives the workbench to move, and the other direction can be fed by a motorized feeding or manual operation handle so as to lighten the labor intensity and ensure the product quality.

4. If the machining part of the strip-shaped single-tooth cutter is an equidistant curved surface of the existing curved surface of the workpiece to be machined, as shown in fig. 1, when the workbench is horizontally moved in the longitudinal direction (X axis) and the transverse direction (Y axis), the equidistant curved surface can be obtained by being matched with the lifting (Z axis) to mechanically feed upwards, and in the same way, the multi-tooth disc milling cutter can widen the groove, namely, a narrow cutter is used for machining a wide groove, so that the cutting load of the cutter is reduced, and the vibration of the cutter bar is reduced. The main shaft structure of the common vertical milling machine is fully developed, and the main shaft structure of the milling machine has some characteristics of the main shaft structure of the boring machine, namely, the main shaft structure can bear axial force, the function of the boring machine of the milling machine is expanded, and the application range of the profiling milling cutter bar is expanded.

In addition, the profiling milling cutter can be used for profiling (profiling) vertical milling machines, and the main difference between the profiling vertical milling machine and a common vertical milling machine is that feeding is driven by hydraulic force, and profiling is also used, but the profile curve is similar to the shape of the curved surface of a workpiece, and a profiling tool is not needed after the profiling milling cutter rod is used.

The present embodiment is described by taking the simultaneous combined machining of the multi-tooth disc milling cutter and the bar-shaped single-tooth cutter as an example, and does not represent that the multi-tooth disc milling cutter and the bar-shaped single-tooth cutter cannot be independently machined or can be simultaneously machined in other combined forms, and the neck outer circle of the end milling cutter or the T-shaped groove milling cutter is provided with a deep groove ball bearing (or a bushing, i.e. an inner concentric disc) and the outer circle of the neck of the end milling cutter or the T-shaped groove milling cutter is not only the cutter bar of the present utility model, but also the milling cutter is taken as a special example of the present utility model. In addition, as in the traditional skill 'knife-knocking' process, no adjusting stop screw and the like can be arranged, and the utility model is a special case.

The above embodiments are provided for illustrating the present utility model and not for limiting the present utility model, and various changes and modifications may be made by one skilled in the relevant art without departing from the spirit and scope of the present utility model, so that all equivalent technical solutions shall fall within the scope of the present utility model, and the scope of the present utility model shall be defined by the claims.

Claims

1. The profiling milling cutter bar (1) is characterized by comprising a cutter bar (11), a milling cutter (12) and a round roller (13), wherein the cutter bar is combined with a driving end connected with a milling machine main shaft and an extending end with a variable diameter of a large end and a small end, the outer cylindrical surface (131) of the round roller (13) is tightly contacted with the existing curved surface of the workpiece to be machined under the action of external force, so that the profiling milling cutter bar (1) winds the existing curved surface of the workpiece to be machined, and rotates and feeds by taking the radius of the outer cylindrical surface (131) of the round roller (13) as an equidistant line, thereby the milling cutter (12) cuts the workpiece to be machined.

2. A profiling milling cutter bar with the existing curved surface of the workpiece to be machined as a profiling according to claim 1, characterized in that the circular roller (13) is a radial contact bearing or an inner and outer concentric disc.

3. A profiling cutter bar with the existing curved surface of the workpiece to be machined as a profiling tool according to claim 2, characterized in that the radial contact bearing is a deep groove ball bearing.

4. A profiling milling cutter bar with the existing curved surface of the workpiece to be machined as a profiling according to claim 1, characterized in that the milling cutter (12) is a multi-tooth disc milling cutter (12A) or a bar-shaped single-tooth cutter (12B).

5. A profiling milling cutter bar with the existing curved surface of the workpiece to be machined as a profiling tool according to claim 4, characterized in that the tooth edges of the multi-tooth disc milling cutter (12A) are provided with chip-dividing grooves, and the positions of the adjacent tooth edge chip-dividing grooves are staggered with each other and the number of the chip-dividing grooves is different.

6. A profiling milling cutter arbor with the existing curved surface of the workpiece to be machined as a profiling tool according to claim 4, characterized in that when the milling cutter (12) is the multi-tooth disc milling cutter (12A), the profiling milling cutter arbor (1) further comprises a key (14), a space ring (15), a washer (16) and a compression nut (17) which are matched with the multi-tooth disc milling cutter (12A) on the cutter arbor (11);

when the milling cutter (12) is a strip-shaped single-tooth cutter (12B), the profiling milling cutter rod (1) further comprises a square through hole (18) which is radially arranged on the cutter rod (11) along the cutter rod rotation center line and is matched with the strip-shaped single-tooth cutter (12B), one end of the square through hole is provided with an internal thread (112) for installing an adjusting stop screw (19), a penetrating internal thread through hole (113) of the setting screw (20) for pressing the cutter is perpendicular to the square through hole (18) and is radially arranged on the cutter rod (11) rotation center line, the adjusting stop screw (19) and the head end face are marked with an equally-dividing indicating straight line (191) and a number (192) in a centripetal manner, the setting screw (20) for pressing the cutter is marked with a reference indicating straight line (111) in the axial direction of the cutter rod center line at the inlet of the internal thread (112) at one end of the square through hole (18), and the equally-dividing indicating straight line (191) and the head end face are marked with the equally-dividing indicating straight line (192) and the number (192) in a centripetal manner, and the cutter length is marked with a radial extension adjusting stop device.

7. A profiling milling cutter bar with the existing curved surface of the workpiece to be machined as a profiling according to claim 6, characterized in that the adjusting stop screw (19) is a hexagon cylinder end set screw of a fine thread, and the set screw (20) is a square cylinder end set screw of a fine thread.