Composite clamp and method for adjusting geometric angle of turning tool

Abstract

The invention relates to the technical field of cutting machining, in particular to a composite clamp and method for adjusting the geometric angle of a turning tool. The composite clamp comprises a base, a rotating shaft sleeve, a sleeve base and a turning tool rotating shaft. The turning tool rotating shaft is rotatably installed on the rotating shaft sleeve. The turning tool is mounted on the turning tool rotating shaft; a main cutting edge of the turning tool coincides with the center line of the turning tool rotating shaft. The side, facing the sleeve base, of the rotating shaft sleeve is a first arc face, and the middle of the first arc face protrudes downwards to form a protruding block. The side, facing the rotating shaft sleeve, of the sleeve base is a second arc face matched with the first arc face. An arc groove is formed in the middle of the second arc face, and the rotating shaft sleeve and the sleeve base are connected in a matched mode through the protruding block and the arc groove. The bottom of the sleeve base is rotatably installed on the base. According to the composite clamp, independent adjustment or composite adjustment of the front angle, the cutting edge inclination angle and the cutting edge angle of the turning tool can be achieved, replacement or grinding of an existing blade is avoided, the manufacturing cost is reduced, and the machining efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cutting machining, and particularly relates to a composite fixture and method for adjusting the geometric angles of a turning tool. Background Art

[0002] Cutting refers to a machining method in which excess material layers on a blank or workpiece are cut off using cutting tools (including cutting tools, abrasives, and grinding materials) to form chips, so that the workpiece obtains the specified geometric shape, dimensions, and surface quality. During the cutting process, the magnitudes of the rake angle, the edge inclination angle, and the main cutting edge angle of the cutting tool will directly affect the cutting force, cutting temperature, and cutting efficiency during the cutting process. At the same time, it will also affect the shape of the cutting layer, the cutting morphology, the chip breaking and chip evacuation effect, and the quality of the machined surface. In addition, the edge strength, sharpness, and cutting flow direction of the cutting tool are also related to the rake angle and the edge inclination angle, and these factors such as the edge strength of the cutting tool will greatly affect the service life and machining efficiency of the cutting tool. Therefore, it is particularly important to explore the influence of the geometric angles of the cutting tool on the cutting machining process and select appropriate geometric angles of the cutting tool for cutting machining.

[0003] However, in the current cutting machining process, the methods for adjusting the geometric angles of the cutting tool mainly rely on replacing or grinding the existing cutting tool. Even when adjusting through a turning tool angle adjustment device, the existing turning tool angle adjustment device can only adjust the value of a certain geometric angle in the cutting tool: for example, it can only adjust the rake angle, or the edge inclination angle, or the main cutting edge angle singly. This not only increases the manufacturing cost but also prolongs the preparation time before cutting, thereby reducing the production efficiency. Summary of the Invention

[0004] In order to solve the technical problem that the existing turning tool angle adjustment device can only adjust a certain geometric angle value in the cutting tool singly, the present invention provides a composite fixture and method for adjusting the geometric angles of a turning tool.

[0005] The present invention is implemented by the following technical solutions: A composite fixture for adjusting the geometric angles of a turning tool, which is used to mount the turning tool for cutting machining. The composite fixture includes a base, a rotating shaft sleeve, a sleeve base, and a turning tool rotating shaft. The turning tool rotating shaft is rotatably mounted on the rotating shaft sleeve along the horizontal direction. The turning tool is fixedly mounted at one end of the turning tool rotating shaft, and the main cutting edge of the turning tool coincides with the center line of the turning tool rotating shaft. The turning tool rotating shaft drives the turning tool to rotate through self-rotation to adjust the rake angle of the turning tool. One side of the rotating shaft sleeve facing the sleeve base is a first arc surface. A circular arc-shaped convex block protrudes downward in the middle of the first arc surface, so that the lower end of the rotating shaft sleeve forms a convex-shaped cross-section structure. The sleeve base is arranged below the rotating shaft sleeve, and one side of the sleeve base facing the rotating shaft sleeve is a second arc surface that coincides with the first arc surface. An arc groove is recessed inward in the middle of the second arc surface. The rotating shaft sleeve and the sleeve base are connected by matching the convex block with the arc groove, so that the rotating shaft sleeve can slide relative to the sleeve base along the trajectory corresponding to the arc groove to adjust the edge inclination angle of the turning tool. The bottom of the sleeve base is rotatably mounted above the base, and the sleeve base rotates along the vertical direction of the base to adjust the main deflection angle of the turning tool.

[0006] As a further improvement of the present invention, the composite fixture further includes a first driving member, a second driving member, and a third driving member. The first driving member is mounted on the sleeve base and is used to drive the sleeve base to rotate around the vertical direction of the base. The second driving member is mounted on the sleeve base and is connected to the rotating shaft sleeve. The second driving member is used to drive the sleeve base to slide in the arc groove. The third driving member is mounted on the turning tool rotating shaft and is used to drive the turning tool rotating shaft to rotate along the horizontal direction of the rotating shaft sleeve.

[0007] As a further improvement of the present invention, a first limiting sliding hole with an arc-shaped structure is provided on the side wall of the sleeve base. The bending degree of the first limiting sliding hole is the same as that of the second arc surface, and its arc length is less than the arc length of the second arc surface. The first limiting sliding hole communicates with the arc groove. At least two threaded grooves are provided on the convex block. The two threaded grooves are symmetrically arranged on the two side walls of the convex block in contact with the side wall of the arc groove and are not communicated with each other. The threaded grooves are aligned with the first limiting sliding hole. Two first locking bolts are provided on the sleeve base. Each first locking bolt passes through the first limiting sliding hole and is threadedly installed in the threaded groove. The rotating shaft sleeve and the sleeve base are fixed or loosened by loosening or tightening the first locking bolts.

[0008] As a further improvement of the present invention, at least one first through hole is further provided on the convex block. The first through hole is aligned with the first limiting sliding hole when the convex block is installed in the arc groove. The second driving member includes at least one first rotating handle. The first rotating handle passes through the first limiting sliding hole and is inserted into the first through hole. The first rotating handle can slide along the first limiting sliding hole under the drive of the outside world when the first locking bolt is loosened, so as to drive the rotating shaft sleeve to slide along the arc groove.

[0009] As a further improvement of the present invention, the base includes a bottom plate and an annular connecting plate, and the connecting plate is fixed on the bottom plate. A chute is provided on the connecting plate, a turntable is fixedly installed at the bottom of the sleeve base, and an annular slider is fixed on the side of the turntable facing the connecting plate. The sleeve base is rotated along the vertical direction of the bottom plate by sliding the slider along the chute.

[0010] As a further improvement of the present invention, a T-shaped plate is fixedly installed on the bottom plate, the connecting plate is sleeved outside the T-shaped plate, and a first baffle equal in height to the T-shaped plate is provided on the side of the connecting plate facing the T-shaped plate. A first limiting groove is formed among the first baffle, the bottom plate and the T-shaped plate. At least one through hole II communicating with the first limiting groove is provided on the turntable along its axial direction. The driving member I includes a bolt and a nut; the head of the bolt is installed in the first limiting groove, the rod body of the bolt extends out of the first limiting groove and passes through one of the through holes II and is connected with the nut.

[0011] As a further improvement of the present invention, an inner ring and an outer ring arranged in a stepped shape are fixed on the side wall of the rotating shaft sleeve opposite to the side where the turning tool is installed. A circular boss is provided on the turning tool shaft, the boss is installed in the outer ring, and the bottom of the boss abuts against the surface of the inner ring. At least two threaded holes are provided on the inner ring, at least two symmetrically arranged arc-shaped limiting holes are also provided on the boss, and each threaded hole is respectively aligned with each limiting hole. Two locking bolts II are also provided on the boss, each locking bolt II passes through the limiting hole and is threadedly fixed in the threaded hole, and the rake angle of the turning tool is adjusted by loosening the locking bolt II and rotating the boss.

[0012] As a further improvement of the present invention, a tool setting block is also fixedly installed on the turning tool shaft, and a centering scale line is provided on the tool setting block. The centering scale line and the main cutting edge of the turning tool both coincide with the central axis of the turning tool shaft.

[0013] As a further improvement of the present invention, the composite fixture further includes a controller, and the controller is electrically connected to the driving member I, the driving member II and the driving member III respectively; the controller drives the sleeve base to rotate by itself through the driving member I to adjust the main cutting edge angle of the turning tool; the controller drives the sleeve base to rotate in the arc groove with the center of the circle formed by the arc of the convex block as the rotation axis through the driving member II to adjust the edge inclination angle of the turning tool; the controller drives the turning tool shaft to rotate by itself through the driving member III to adjust the rake angle of the turning tool.

[0014] The present invention also includes a method for adjusting the geometric angles of a turning tool, which is adjusted by using the composite fixture for adjusting the turning tool angles described above. The method for adjusting the geometric angles of a turning tool includes the following steps:

[0015] S1: Calibrate the main cutting edge of the turning tool and the centering scale line of the tool setting block so that the main cutting edge of the turning tool coincides with the centering scale line.

[0016] S2: Rotate the rotating shaft sleeve with the center of the circle formed by the arc of the bump as the rotating shaft, so that the rotating shaft sleeve can rotate clockwise or counterclockwise in the arc groove to adjust the edge inclination angle of the turning tool. Then, rotate the turning tool shaft with the center line of the turning tool shaft in the horizontal direction as the rotating shaft, so as to adjust the rake angle of the turning tool on the premise that the edge inclination angle remains unchanged.

[0017] S3: Adjust the principal cutting edge angle of the turning tool by rotating the sleeve base along the vertical direction of the base.

[0018] The technical solution provided by the present invention has the following beneficial effects:

[0019] (1) The composite fixture for adjusting the geometric angles of a turning tool provided by the present invention can independently adjust the rake angle, edge inclination angle, and principal cutting edge angle of the turning tool or perform a combined adjustment of the rake angle, edge inclination angle, and principal cutting edge angle by adjusting the position of the turning tool shaft relative to the rotating shaft sleeve, the position of the rotating shaft sleeve relative to the sleeve base, and the position of the sleeve base relative to the base, avoiding replacing or grinding the existing cutting blade, reducing the manufacturing cost, and improving the processing efficiency. At the same time, it effectively solves the problem that the adjustment device in the prior art can only adjust a single geometric angle, resulting in poor practicability.

[0020] (2) For the composite fixture for adjusting the geometric angles of a turning tool provided by the present invention, the adjustment methods of the rake angle, edge inclination angle, and principal cutting edge angle of the turning tool are simple and have a large adjustable range, which is beneficial to studying the influence of tool angles in a large range on the cutting process and is also beneficial to the selection of various tool angle schemes in actual processing. Brief Description of the Drawings

[0021] Figure 1 It is a three-dimensional schematic diagram of the composite fixture for adjusting the geometric angles of a turning tool provided in Embodiment 1 of the present invention.

[0022] Figure 2 It is an exploded schematic diagram of the composite fixture for adjusting the geometric angles of a turning tool provided in Embodiment 1 of the present invention.

[0023] Figure 3 It is a top view of the composite fixture for adjusting the geometric angles of a turning tool provided in Embodiment 1 of the present invention.

[0024] Figure 4 For the present invention Figure 3 The sectional schematic diagram along A-A in.

[0025] Figure 5 For the present invention Figure 3 The sectional schematic diagram along B-B in.

[0026] Figure 6 It is a structural schematic diagram when the rotating shaft sleeve and the sleeve base are separated in Embodiment 1 of the present invention.

[0027] Figure 7 This is a schematic structural diagram when the sleeve base and the base are separated in Embodiment 1 of the present invention.

[0028] Figure 8 This is a schematic structural diagram of the composite fixture for adjusting the geometric angle of the turning tool provided in Embodiment 1 of the present invention from another perspective.

[0029] Figure 9 This is a schematic structural diagram of the turning tool rotating shaft in Embodiment 1 of the present invention.

[0030] The markings in the figure are: 1, base; 11, bottom plate; 12, connecting plate; 121, chute; 122, first baffle; 123, first limiting groove; 13, T-shaped plate; 2, rotating shaft sleeve; 21, first arc surface; 22, convex block; 221, threaded groove; 222, first through hole; 23, inner ring; 231, threaded hole; 24, outer ring; 3, sleeve base; 31, second arc surface; 32, arc groove; 33, first limiting sliding hole; 34, first locking bolt; 35, turntable; 351, slider; 352, second through hole; 4, turning tool rotating shaft; 41, boss; 411, limiting hole; 412, second locking bolt; 42, tool setting block; 43, second turning handle; 5, first turning handle; 6, bolt; 7, nut; 8, turning tool. Detailed implementation manners

[0031] Next, in combination with the detailed implementation manners, the present invention will be further described. It should be noted that, on the premise of no conflict, any combination of the following described embodiments or technical features can form a new embodiment.

[0032] In the description of the present invention, it should be noted that for the orientation terms, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation and position relationship are based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention. The terms "first", "second", etc. in the description and claims of the present invention are used to distinguish similar objects and do not necessarily need to describe a specific order or sequence. The terms "comprising" and "having" in the description and claims of the present invention and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0033] During the cutting process, the rake angle, edge inclination angle and main cutting edge angle of the cutting tool will directly affect the cutting force, cutting temperature and cutting efficiency during the cutting process. In the current cutting process, if it is necessary to adjust the geometric angle of the cutting tool, it generally relies on replacing or grinding the existing cutting blade to achieve. However, the above adjustment method is relatively complex in operation and requires a lot of cutting blades, resulting in a relatively high replacement cost. When using the existing 8-angle adjustment device for turning tools to adjust the geometric angle of the cutting tool, the existing 8-angle adjustment device for turning tools can only adjust the value of a certain geometric angle in the cutting tool: for example, it can only adjust a certain geometric angle value of the rake angle of the cutting tool, or the edge inclination angle of the cutting tool, or the main cutting edge angle of the cutting tool. Therefore, how to achieve flexible adjustment of the rake angle, edge inclination angle and main cutting edge angle of the cutting tool without replacing or grinding the existing cutting blade has become a difficult problem to be solved urgently. The present invention provides a composite fixture for adjusting the geometric angle of a turning tool 8, which is used to install the turning tool 8 for cutting processing and can independently adjust the angles of the rake angle, edge inclination angle and main cutting edge angle of the turning tool 8 to solve the above problem. The following describes the specific structure of the composite fixture for adjusting the geometric angle of the turning tool 8 provided by the present invention.

[0034] Embodiment 1

[0035] This embodiment provides a composite fixture for adjusting the geometric angle of a turning tool, which is used to install the turning tool 8 for cutting processing. Please refer to Figure 1 and Figure 2 , the composite fixture includes a base 1, a rotating shaft sleeve 2, a sleeve base 3 and a turning tool rotating shaft 4.

[0036] Please refer to Figures 2 to 4 , on one side of the rotating shaft sleeve 2 facing the sleeve base 3 is a first arc surface 21. In the middle of the first arc surface 21, a circular arc-shaped convex block 22 protrudes downward, so that the lower end of the rotating shaft sleeve 2 forms a convex-shaped cross-section structure. In this embodiment, the central angle of the arc length of the convex block 22 can be the same as the central angle of the arc length of the first arc surface 21. The sleeve base 3 is arranged below the rotating shaft sleeve 2, and one side of it facing the rotating shaft sleeve 2 is a second arc surface 31 that coincides with the first arc surface 21. In the middle of the second arc surface 31, a circular arc groove 32 is recessed inward. The rotating shaft sleeve 2 and the sleeve base 3 are connected in a matching manner through the convex block 22 and the circular arc groove 32. When the rotating shaft sleeve 2 is installed on the sleeve base 3, the convex block 22 is inserted into the circular arc groove 32. During the adjustment process, the convex block 22 on the sleeve base 3 can slide relative to the rotating shaft sleeve 2 along the corresponding trajectory of the circular arc groove 32, so as to adjust the edge inclination angle of the turning tool 8.

[0037] Please refer to Figure 4 , the turning tool rotating shaft 4 is rotatably installed on the rotating shaft sleeve 2 along the horizontal direction. The turning tool 8 is fixedly installed at one end of the turning tool rotating shaft 4, and the main cutting edge of the turning tool 8 coincides with the center line of the turning tool rotating shaft 4. In this embodiment, by installing the turning tool rotating shaft 4 on the rotating shaft sleeve 2 along the horizontal direction and making the main cutting edge of the turning tool 8 coincide with the center line of the turning tool rotating shaft 4, it can be realized that when adjusting the rake angle of the turning tool 8 by rotating the turning tool rotating shaft 4 after adjusting the edge inclination angle, the edge inclination angle remains unchanged. Therefore, the composite fixture of this embodiment can realize the separate adjustment of the edge inclination angle and the rake angle of the turning tool 8 through the rotating shaft sleeve 2. And during the adjustment process, by adjusting the edge inclination angle of the turning tool 8 first and then adjusting the rake angle of the turning tool 8, it is ensured that the adjusted edge inclination angle of the turning tool 8 will not be affected when adjusting the rake angle of the tool.

[0038] The bottom of the sleeve base 3 is rotatably installed above the base 1, and the sleeve base 3 rotates along the vertical direction of the base 1 to adjust the main deflection angle of the turning tool 8.

[0039] In this embodiment, the composite fixture further includes a first driving member, a second driving member and a third driving member. The first driving member is installed on the sleeve base 3 and is used to drive the sleeve base 3 to rotate around the vertical direction of the base 1 to adjust the main deflection angle of the turning tool 8. The second driving member is installed on the sleeve base 3 and is connected to the rotating shaft sleeve 2. The second driving member is used to drive the sleeve base 3 to slide in the circular arc groove 32 to adjust the edge inclination angle of the turning tool 8. The third driving member is installed on the turning tool rotating shaft 4 and is used to drive the turning tool rotating shaft 4 to rotate along the horizontal direction of the rotating shaft sleeve 2 to adjust the rake angle of the turning tool 8.

[0040] Please refer to Figure 1 , Figure 2 andFigure 4 On the side wall of the sleeve base 3, there is a limiting sliding hole one 33 with an arc-shaped structure. The bending degree of the limiting sliding hole one 33 is the same as that of the second arc surface 31, and the arc length of the limiting sliding hole one 33 is less than the arc length of the second arc-shaped surface. The limiting sliding hole one 33 communicates with the arc groove 32. On the convex block 22, there are at least two threaded grooves 221, and the two threaded grooves 221 are symmetrically arranged on the two side walls of the convex block 22 that are in contact with the side wall of the arc groove 32. The two threaded grooves 221 are not communicated with each other and are respectively aligned with the limiting sliding hole one 33. Preferably, the threaded groove 221 can be arranged at the middle position of the convex block 22 so that the distances from the threaded groove 221 to the left and right ends of the convex block 22 are equal. There are two first locking bolts 34 on the sleeve base 3, and each first locking bolt 34 passes through the limiting sliding hole one 33 and is threadedly installed in the threaded groove 221. By loosening or tightening the first locking bolt 34, the fixing or loosening between the rotating shaft sleeve 2 and the sleeve base 3 is realized. In the actual application process, the first locking bolt 34 is always in threaded connection with the threaded groove 221. By setting the first locking bolt 34, the sliding of the rotating shaft sleeve 2 relative to the sleeve base 3 can be further limited, and the stability of the sliding of the rotating shaft sleeve 2 relative to the sleeve base 3 along the corresponding trajectory of the arc groove 32 can be further improved, thereby improving the stability of adjusting the edge inclination angle of the turning tool 8.

[0041] Next, describe how to adjust the edge inclination angle of the turning tool 8 through the above structure: First, loosen the first locking bolt 34 so that the first locking bolt 34 loses the function of fixing the convex block 22 and the sliding groove. Subsequently, drive the rotating shaft sleeve 2 through the first driving member so that the rotating shaft sleeve 2 can slide relative to the sleeve base 3 along the corresponding trajectory of the arc groove 32, thereby achieving the purpose of adjusting the edge inclination angle of the turning tool 8. After adjusting the edge inclination angle of the turning tool 8, when the first locking bolt 34 is tightened again, the first locking bolt 34 will move into the threaded groove 221 and the head of the first locking bolt 34 abuts against the outer side wall of the sleeve base 3, thereby realizing the fixing of the convex block 22 in the sliding groove. At this time, the convex block 22 and the sliding groove are fixed and will not undergo relative sliding, so as to fix the rotating shaft sleeve 2 on the sleeve base 3.

[0042] In this embodiment, please refer to Figure 2 、 Figure 5 and Figure 6 In addition, on the convex block 22, there may be at least one first through hole 222. When the convex block 22 is installed in the arc groove 32, the first through hole 222 is aligned with the limiting sliding hole one 33. The second driving member includes at least one first rotating handle 5, and the first rotating handle 5 passes through the limiting sliding hole one 33 and is inserted into the first through hole 222. When the first locking bolt 34 is loosened, the first rotating handle 5 can slide along the limiting sliding hole one 33 under the external drive, thereby driving the rotating shaft sleeve 2 to slide along the arc groove 32.

[0043] In this embodiment, the number of the first through holes 222 can be two, and the two first through holes 222 are symmetrically arranged on both sides of the thread groove 221 along the sliding direction of the bump 22. And in the actual design process, the two first through holes 222 can be arranged along both sides of the bump 22, so that the distance between the first through holes 222 and the thread groove 221 is the largest, thereby increasing the sliding angle of the bump 22 in the arc groove 32, that is, increasing the adjustment angle range of the edge inclination angle of the turning tool 8. And in the actual operation process, by arranging the two first through holes 222 symmetrically arranged on both sides of the thread groove 221, the bidirectional adjustment of the edge inclination angle of the turning tool 8 can be realized. When the first handle 5 is rotated and inserted into the first through hole 222 on the left side, and the first handle 5 is rotated to drive the rotating shaft sleeve 2 to slide to the right along the corresponding track of the arc groove 32, at this time, the edge inclination angle of the turning tool 8 can be adjusted in the reverse direction, that is, the edge inclination angle of the adjusted turning tool 8 is negative. When the first handle 5 is inserted into the first through hole 222 on the right side, and the first handle 5 is rotated to drive the rotating shaft sleeve 2 to slide to the left along the corresponding track of the arc groove 32, at this time, the edge inclination angle of the turning tool 8 can be adjusted in the positive direction, that is, the edge inclination angle of the adjusted turning tool 8 is positive.

[0044] It can be understood that, please refer to Figure 1 and Figure 6 , there is an edge inclination reference scale line on the side wall of the bottom of the rotating shaft sleeve 2, and there is an edge inclination adjustment scale line on the sleeve base 3. When the edge inclination reference scale line is aligned with the midline position on the inclination adjustment scale line, the edge inclination angle of the turning tool 8 is in the zero state. If it is necessary to adjust the edge inclination angle, the first locking bolt 34 can be loosened first, so that the rotating shaft sleeve 2 can slide relative to the sleeve base 3. Then the first handle 5 is passed through the first limiting sliding hole 33 and inserted into the first through hole 222, and then by pushing the first handle 5, the first handle 5 can drive the rotating shaft sleeve 2 to slide relative to the sleeve base 3 along the corresponding track of the arc groove 32 through the bump 22, and at the same time, the position of the edge inclination reference scale line is observed to judge the edge inclination adjustment angle. When the edge inclination reference scale line rotates to the edge inclination adjustment scale line corresponding to the required adjusted edge inclination angle, stop rotating. And by tightening the first locking bolt 34, the two first locking bolts 34 fix the bump 22 in the arc groove 32 to fix the rotating shaft sleeve 2. Thus, the adjustment of the edge inclination angle of the turning tool 8 is completed. And in this embodiment, the adjustment angle range of the edge inclination angle can be increased by increasing the diameter of the first limiting sliding hole 33. At the same time, through the mutual cooperation of the first locking bolt, the first limiting sliding hole 33 and the arc groove 32, the bump 22 can slide along the corresponding track of the arc groove 32 to the greatest extent, so as to avoid the situation that some angles within the limited edge inclination angle adjustment range cannot be adjusted while realizing the large-range adjustment of the edge inclination angle of the turning tool.

[0045] In this embodiment, for each rotation of the cutting edge inclination reference scale line around the cutting edge inclination adjustment scale line by one scale, the cutting edge inclination of the turning tool 8 is adjusted by 1°. Therefore, during actual operation, the angle of the cutting edge inclination of the turning tool 8 can be defined by observing how many scales the cutting edge inclination reference scale line rotates around the midline of the cutting edge inclination adjustment scale line.

[0046] When installing the rotating shaft sleeve 2 on the sleeve base 3, it is necessary to align the cutting edge inclination reference scale line with the midline position on the cutting edge inclination adjustment scale line. At this time, the cutting edge inclination angle of the turning tool 8 is zero. If the cutting edge inclination angle needs to be adjusted, only the rotating shaft sleeve 2 needs to be rotated so that the rotating shaft sleeve 2 can slide relative to the sleeve base 3 along the trajectory corresponding to the arc groove 32, thereby realizing the adjustment of the cutting edge inclination angle of the turning tool 8.

[0047] Please refer to Figures 5 to 7 , the base 1 includes a bottom plate 11 and an annular connecting plate 12. The connecting plate 12 can be fixed to the bottom plate 11 by means of screw fixation. A sliding groove 121 is provided on the connecting plate 12. A turntable 35 is fixedly installed at the bottom of the sleeve base 3. An annular slider 351 is fixed on the side of the turntable 35 facing the connecting plate 12. By rotating the slider 351 within the sliding groove 121, the sleeve base 3 can be rotated along the vertical direction of the bottom plate 11, so as to achieve the adjustment of the main cutting edge angle of the turning tool 8 by the self-rotation of the sleeve base 3.

[0048] Please refer to Figures 5 to 7 , a T-shaped plate 13 is fixedly installed on the bottom plate 11. The connecting plate 12 is sleeved outside the T-shaped plate 13, and a first baffle 122 with the same height as the T-shaped plate 13 is provided on the side of the connecting plate 12 facing the T-shaped plate 13. A first limiting groove 123 is formed among the first baffle 122, the bottom plate 11 and the T-shaped plate 13. The first limiting groove 123 is circular and the cross-section of the first limiting groove 123 is a convex structure. At least one through hole two 352 communicating with the first limiting groove 123 is provided on the turntable 35 along its radial direction. The first driving member includes a bolt 6 and a nut 7. The head of the bolt 6 is installed in the limiting groove, and the rod body of the bolt 6 extends out of the first limiting groove 123 and passes through one of the through holes two 352 to be connected with the nut 7. By setting the bolt 6 in the above manner, it can not only ensure that the bolt 6 can drive the sliding between the turntable 35 and the connecting plate 12, but also ensure the fixation and locking between the turntable 35 and the connecting plate 12 after adjusting the required angle of the main cutting edge rotation, realizing the fixation between the sleeve base 3 and the base 1.

[0049] In this embodiment, a gasket can also be provided in the first limiting groove 123. The gasket can reduce the friction of the bolt 6 during rotation, so that the bolt 6 can rotate smoothly in the first limiting groove 123.

[0050] The turntable 35 may be provided with a main cutting edge angle reference scale line, and the annular connecting plate 12 is provided with a main cutting edge angle adjustment scale line. During the installation process, when the sleeve base 3 is installed on the connecting plate 12 on the base 1 through the turntable 35, it is necessary to align the main cutting edge angle reference scale line on the turntable 35 with the midline of the main cutting edge angle adjustment scale line, thereby realizing the zero adjustment operation of the main cutting edge angle of the turning tool 8. In this embodiment, for each rotation of the main cutting edge angle reference scale line around the main cutting edge angle adjustment scale line by one scale, the main cutting edge angle of the turning tool 8 is adjusted by 1°. Therefore, during the actual operation, the angle of adjustment of the main cutting edge angle of the turning tool 8 can be defined by observing how many scales the main cutting edge angle reference scale line rotates around the midline of the main cutting edge angle adjustment scale line.

[0051] The assembly process between the sleeve base 3 and the base 1 is as follows: First, place the head of the bolt 6 on the bottom plate 11 and outside the T-shaped plate 13, and then sleeved the connecting plate 12 outside the T-shaped plate 13, so that under the action of the T-shaped plate 13, the bolt 6 can be placed in the limiting groove 123 formed among the baffle plate 122, the bottom plate 11 and the T-shaped plate 13. Then align the slider 351 on the turntable 35 with the sliding groove 121, and align the through hole 352 on the turntable 35 with the bolt 6. When the slider 351 on the turntable 35 is inserted into the sliding groove 121, the bolt 6 can pass through the through hole 352 and extend above the turntable 35. Then drive the turntable 35 to rotate through the bolt 6, so that the main cutting edge angle reference scale line on the turntable 35 is aligned with the main cutting edge angle adjustment scale line on the connecting plate 12, and then fix the turntable 35 and the connecting plate 12 by tightening the nut 7, thereby realizing the fixed installation of the sleeve base 3 on the base 1 and the zero adjustment operation of the main cutting edge angle of the turning tool 8. And through the mutual cooperation of the bolt 6 and the limiting groove 123 provided in the present invention, the locking between the sleeve base 3 and the base 1 can be realized within the entire main cutting edge angle adjustment range, and as much as possible to avoid the waste situation caused by the inability to adjust some of the main cutting edge angle ranges within the set main cutting edge angle adjustment range.

[0052] Please refer to Figure 6, on the side wall of the rotating shaft sleeve 2 opposite to the side where the turning tool 8 is installed, there are fixed an inner ring 23 and an outer ring 24 arranged in a stepped shape. The axial length of the inner ring 23 is less than the axial length of the outer ring 24. There is a circular boss 41 on the turning tool rotating shaft 4. The boss 41 is installed inside the outer ring 24 and the bottom of the boss 41 abuts against the surface of the inner ring 23. There are at least two threaded holes 231 on the inner ring 23. There are also at least two symmetrically arranged arc-shaped limiting holes 411 on the boss 41. Each threaded hole 231 is respectively aligned with each limiting hole 411. There are also two second locking bolts 412 on the boss 41. Each second locking bolt 412 respectively passes through the limiting hole 411 and is threadedly fixed in the threaded hole 231. By loosening the second locking bolt 412 and rotating the boss 41, the rake angle of the turning tool 8 can be adjusted. The driving member three can be a second turning handle 43, and the turning handle can be of a T-shaped structure. The second turning handle 43 is fixedly installed on the boss 41. It can be understood that there is a rake angle reference scale line on the boss 41 and a rake angle adjustment scale line on the outer ring 24. When installing the turning tool rotating shaft 4, it is necessary to rotate the turning tool rotating shaft 4 so that the rake angle reference scale line on the boss 41 is aligned with the midline of the rake angle adjustment scale line on the outer ring 24, thereby realizing the zeroing operation of the rake angle of the turning tool 8.

[0053] In this embodiment, for every rotation of the rake angle reference scale line around the rake angle adjustment scale line by one scale, the rake angle of the turning tool 8 is adjusted by 1°. Therefore, in the actual operation process, the amount of adjustment of the rake angle of the turning tool 8 can be defined by observing how many scales the rake angle reference scale line rotates around the midline of the rake angle adjustment scale line. The adjustment method of the rake angle of the turning tool 8 can be as follows: First, zero the rake angle of the turning tool, and then rotate the second turning handle 43 and observe the angle by which the rake angle reference scale line on the boss 41 rotates relative to the midline of the rake angle adjustment scale line on the outer ring 24, thereby achieving the purpose of adjusting the rake angle of the turning tool 8.

[0054] In this embodiment, in order to increase the adjustment angle of the rake angle, the arc length of the limiting hole 411 can be appropriately increased to meet the purpose of adjusting the rake angle of the turning tool 8 within a larger range. In addition, in this embodiment, by setting the second locking bolt 412, the stability of the turning tool rotating shaft 4 during rotation can be improved, and at the same time, the maximum rotation range of the turning tool rotating shaft can be the arc length of the limiting hole 411. Therefore, while increasing the adjustment range of the rake angle of the turning tool 8, the turning tool rotating shaft 4 can also rotate to both sides of the limiting hole 411, so that the turning tool rotating shaft 4 can perform full-scale adjustment of the rake angle of the turning tool 8.

[0055] It can be understood that for the composite fixture in this embodiment, the adjustment methods of the rake angle, edge inclination angle, and main cutting edge angle of the turning tool are simple and have a relatively large adjustable range, which is beneficial to studying the influence of tool angles within a large range on the cutting process and is also beneficial to the selection of various tool angle schemes in actual processing.

[0056] In this embodiment, the number of the limiting holes 411 can be three. The three arc-shaped limiting holes 411 are all on the same circumference. During the actual adjustment process, the bolt 6 II can be loosened, and then by rotating the rotating handle II 43, the rotating handle II 43 can drive the turning tool rotating shaft 4 to rotate self, so as to adjust the rake angle of the turning tool 8. After adjustment, the locking bolt II 412 can be tightened, and the locking bolt II 412 can fix between the boss 41 and the inner ring 23, so that the convex block 22 cannot drive the turning tool rotating shaft 4 to rotate self.

[0057] It can be understood that, please refer to Figure 8 and Figure 9 , a tool setting block 42 with an L-shaped rod structure is also fixedly installed on the turning tool rotating shaft 4. A square long hole is provided on the turning tool rotating shaft 4. The long rod end of the tool setting block 42 is fixed in the square long hole. A centering scale line is provided on the short rod end face of the tool setting block 42. The centering scale line of the tool setting block 42 installed on the turning tool rotating shaft 4 coincides with the central axis of the turning tool rotating shaft 4. The main cutting edge of the turning tool 8 installed on the turning tool rotating shaft 4 also coincides with the central axis of the turning tool rotating shaft 4. During the installation process of the turning tool 8, the tool setting block 42 can be installed first, and the centering scale line of the tool setting block 42 is made to coincide with the central axis of the turning tool rotating shaft 4 (i.e., the rotation center of the turning tool rotating shaft 4). Then, the main cutting edge of the turning tool 8 can be adjusted to coincide with the central axis of the tool setting block 42 by adding a wedge-shaped gasket, so that the main cutting edge of the turning tool 8 can coincide with the rotation center of the turning tool rotating shaft 4, that is, it can be ensured that the edge inclination angle will not change when adjusting the rake angle of the turning tool 8.

[0058] It can be understood that, before adjusting the geometric angles of the turning tool, it is necessary to perform a zeroing operation on the rake angle, edge inclination angle and main deflection angle of the turning tool first. And since the turning tool rotating shaft in this embodiment is installed on the rotating shaft sleeve, when adjusting these two geometric angles of the rake angle and edge inclination angle of the turning tool, it is necessary to adjust the edge inclination angle of the turning tool first, and after adjusting the edge inclination angle of the turning tool, the rake angle needs to be zeroed before adjusting the rake angle of the turning tool. And the main deflection angle of the turning tool is adjusted independently and is not affected by the other two geometric angles. Therefore, when it is necessary to adjust multiple geometric angles of the turning tool, the main deflection angle of the turning tool can be adjusted first or finally.

[0059] The turning tool rotating shaft 4 can be integrally distributed in a stepped shape. The cross section of its left end is fan-shaped and a square hole groove is opened inside. Two threaded holes 231 are opened at the upper end of the square hole groove. The turning tool 8 is installed in the square hole groove and fixed by screws passing through the threaded holes 231. A boss 41 is provided at the right end of the turning tool rotating shaft 4. A rake angle reference scale line is provided on the convex block 22.

[0060] Through the above description, it is possible to adjust the edge inclination angle, rake angle, and principal cutting edge angle of the turning tool 8 on a fixture through a pure mechanical structure. The pure mechanical structure can improve the reliability and stability of the composite fixture during adjustment and reduce the production cost of the composite fixture. The present invention can realize the function of separately adjusting the rake angle, edge inclination angle, and principal cutting edge angle of the tool without replacing or grinding the existing blade, explore the influence law of the tool geometric angle on the cutting process, and provide a reliable method for optimizing the tool geometric angle in industrial production.

[0061] Embodiment 2

[0062] Based on Embodiment 1 of the present invention, a method for adjusting the geometric angle of the turning tool 8 based on a composite fixture is further provided, which includes the following steps:

[0063] S1: Calibrate the main cutting edge of the turning tool 8 and the centering scale line of the tool setting block 42 so that the main cutting edge of the turning tool 8 coincides with the centering scale line. The purpose of this operation is to ensure that when adjusting the rake angle of the turning tool 8 after adjusting the edge inclination angle of the turning tool 8, the edge inclination angle of the turning tool 8 will not change due to the adjustment of the rake angle of the turning tool 8, so as to realize the adjustment of the rake angle of the turning tool 8 under the condition that the edge inclination angle of the turning tool 8 remains unchanged.

[0064] S2: Take the center of the circle formed by the arc of the convex block 22 as the rotation axis and rotate the rotating shaft sleeve 2 through the driving member, so that the rotating shaft sleeve 2 can rotate clockwise or counterclockwise along the corresponding trajectory of the arc groove 32 to adjust the edge inclination angle of the turning tool 8. After adjusting the edge inclination angle of the turning tool 8, first zero the rake angle of the turning tool, and then rotate the turning tool shaft 4 with the center line of the turning tool shaft 4 in the horizontal direction as the rotation axis, so as to adjust the rake angle of the turning tool 8 on the premise that the edge inclination angle remains unchanged.

[0065] S3: Rotate the sleeve base 3 along the vertical direction of the base 1 to adjust the principal cutting edge angle of the turning tool 8 on the premise that the edge inclination angle and rake angle of the turning tool 8 remain unchanged.

[0066] Embodiment 3

[0067] In addition, based on Embodiment 1, the composite fixture of the present invention can also adopt an automatic control method to adjust the rake angle, edge inclination angle, and principal cutting edge angle of the turning tool 8. During the automatic adjustment process, the composite fixture includes a base 1, a sleeve base 3, a rotating shaft sleeve 2, a turning tool shaft 4, a controller, and multiple angle measuring instruments. Among them, the structures of the base 1, the sleeve base 3, the rotating shaft sleeve 2, and the turning tool shaft 4 are basically the same as those of the composite fixture in Embodiment 1, and can be referred to Figures 1 to 5, the differences are as follows: (1) The first driving part in the automatic control process can be the first driving motor. The first driving motor is connected to the turntable 35. By driving the first driving motor, the turntable 35 can be driven to rotate, so as to drive the sleeve base 3 to rotate automatically, thereby adjusting the main cutting edge angle of the turning tool 8. (2) The third driving part in the automatic control process can be the third driving motor. By connecting the third driving motor to the boss 41 and driving the boss 41 to rotate automatically, the rake angle of the turning tool 8 can be adjusted. (3) The second driving part in the automatic control process can be the second driving motor. By connecting the second driving motor to the rotating shaft sleeve 2 and driving the rotating shaft sleeve 2 to slide along the trajectory corresponding to the arc groove 32, the edge inclination angle of the turning tool 8 can be adjusted.

[0068] When the first driving part, the second driving part and the third driving part all select driving motors, it is necessary to consider that one driving motor will not be interfered by the other two driving motors during driving. Therefore, in this embodiment, the second driving motor can be installed on the turntable 35 and can drive the rotating shaft sleeve 2 to rotate along the arc groove 32 alone, and can also rotate with the turntable 35 when the first driving motor drives the turntable 35 to rotate. For the third driving motor, it can be fixed on the rotating shaft sleeve 2 and connected to the boss 41. So that the second driving motor can drive the turning tool rotating shaft 4 to rotate alone and can also rotate with the turntable 35 when the first driving motor drives the turntable 35 to rotate. For the first driving motor, it can be installed on the base 1 and connected to the turntable 35, and the main cutting edge angle of the turning tool 8 is adjusted by driving the turntable 35 to rotate. The above description is only an installation method of the first driving part, the second driving part and the third driving part. In the actual installation design process, as long as the first driving part, the second driving part and the third driving part can be driven respectively and are not interfered with each other.

[0069] When selecting an automatic control compound fixture to adjust the geometric angle of the turning tool 8, angle measuring instruments can be installed at corresponding positions of the compound fixture to measure the rake angle, the edge inclination angle and the main cutting edge angle of the turning tool 8 respectively. And the angle measuring instruments are electrically connected to the controller respectively. The controller is electrically connected to the first driving part, the second driving part and the third driving part respectively. The controller adjusts the main cutting edge angle of the turning tool 8 by controlling the first driving part to drive the sleeve base 3 to rotate; the controller adjusts the edge inclination angle of the turning tool 8 by controlling the second driving part to drive the rotating shaft sleeve 2 to rotate with the center of the circle formed by the arc of the convex block 22 as the rotating shaft in the arc groove 32; the controller adjusts the rake angle of the turning tool 8 by controlling the third driving part to drive the turning tool rotating shaft 4 to rotate with its center line in the horizontal direction as the rotating shaft.

[0070] The operation steps of the composite fixture to automatically adjust the geometric angle of the turning tool 8 can be described according to the above structure as follows: (1) First, calibrate the main cutting edge of the turning tool 8 and the centering scale line of the tool setting block 42 so that the main cutting edge of the turning tool 8 coincides with the centering scale line; and zero the edge inclination angle, rake angle, and main cutting edge angle of the turning tool 8. (2) Control the driving motor two through the controller to drive the rotating shaft sleeve 2 to rotate within the arc groove 32 with the center of the circle formed by the arc of the convex block 22 as the rotating shaft to adjust the edge inclination angle of the turning tool 8. The angle measuring instrument simultaneously collects the adjusted edge inclination angle of the turning tool 8, and then feeds the collected data back to the controller. When the adjusted edge inclination angle reaches the preset value of the controller, the controller stops driving the driving motor two. (3) After adjusting the edge inclination angle of the turning tool 8, first zero the rake angle of the turning tool, and then control the driving motor three through the controller to drive the turning tool rotating shaft 4 to rotate around its center line in the horizontal direction to adjust the rake angle of the turning tool 8. At the same time, another angle measuring instrument can collect the adjusted rake angle value of the turning tool 8 and feed the collected adjusted rake angle value back to the controller. When the adjusted rake angle reaches the preset value of the controller, the controller stops driving the driving motor three. (4) After adjusting the edge inclination angle and rake angle of the turning tool 8, the controller then controls the driving motor one so that the driving motor one drives both the sleeve base 3 and the rotating shaft sleeve 2 to rotate along the vertical direction of the base 1 to adjust the main cutting edge angle of the turning tool 8 while keeping the edge inclination angle and rake angle of the turning tool 8 unchanged.

[0071] Among them, the zeroing operation in step (1) can refer to the description in Embodiment 1.

[0072] The above describes the basic principle, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A composite fixture for adjusting the geometric angle of a turning tool, which is used to install a turning tool (8) for cutting processing; characterized in that: The composite fixture comprises a base (1), a rotating shaft sleeve (2), a sleeve base (3) and a turning tool rotating shaft (4); The turning tool rotating shaft (4) is rotatably mounted on the rotating shaft sleeve (2) along the horizontal direction; the turning tool (8) is fixedly mounted on one end of the turning tool rotating shaft (4), and the main cutting edge of the turning tool (8) coincides with the center line of the turning tool rotating shaft (4); the turning tool rotating shaft (4) drives the turning tool (8) to rotate by self-rotation to adjust the front angle of the turning tool (8); The side of the rotating shaft sleeve (2) facing the sleeve base (3) is an arc surface one (21), and a circular arc-shaped convex block (22) protrudes downward in the middle of the circular arc surface one (21), so that the lower end of the rotating shaft sleeve (2) forms a convex structure in cross section; the sleeve base (3) is arranged below the rotating shaft sleeve (2) and the side thereof facing the rotating shaft sleeve (2) is an arc surface two (31) matching the circular arc surface one (21), and the middle of the circular arc surface two (31) is recessed inward to form an arc groove (32); the rotating shaft sleeve (2) and the sleeve base (3) are connected to each other through the convex block (22) and the arc groove (32), so that the rotating shaft sleeve (2) can slide relative to the sleeve base (3) along the trajectory corresponding to the arc groove (32) to adjust the blade inclination angle of the turning tool (8); The bottom of the sleeve base (3) is rotatably mounted above the base (1), and the sleeve base (3) can adjust the main deflection angle of the turning tool (8) by rotating along the vertical direction of the base (1).

2. The composite fixture for adjusting the geometric angle of a turning tool as claimed in claim 1, characterized in that: The composite clamp further comprises a driving member 1, a driving member 2 and a driving member 3, wherein the driving member 1 is mounted on the sleeve base (3) and is used to drive the sleeve base (3) to rotate in the vertical direction around the base (1); the driving member 2 is mounted on the sleeve base (3) and is connected to the rotating shaft sleeve (2), and the driving member 2 is used to drive the sleeve base (3) to slide in the circular arc groove (32); the driving member 3 is mounted on the turning tool rotating shaft (4) and is used to drive the turning tool rotating shaft (4) to rotate in the horizontal direction of the rotating shaft sleeve (2).

3. The composite fixture for adjusting the geometric angle of a turning tool as claimed in claim 2, characterized in that: A limiting sliding hole (33) with an arc-shaped structure is provided on the side wall of the sleeve base (3); the curvature of the limiting sliding hole (33) is the same as that of the arc surface (31) and its arc length is less than that of the arc surface (31); the limiting sliding hole (33) is connected to the arc groove (32); at least two thread grooves (221) are provided on the protrusion (22); the two thread grooves (221) are symmetrically arranged on the protrusion (22) and on the side wall of the arc groove (32). On two side walls that are in contact and not connected to each other, the thread groove (221) is aligned with the limiting sliding hole (33); two locking bolts (6) (34) are provided on the sleeve base (3), and each of the locking bolts (6) (34) passes through the limiting sliding hole (33) and is threadedly installed in the thread groove (221); the rotating shaft sleeve (2) and the sleeve base (3) are fixed or loosened by loosening or tightening the locking bolts (6) (34).

4. The composite fixture for adjusting the geometric angle of a turning tool as claimed in claim 3, characterized in that: The protrusion (22) is also provided with at least one through hole (222), and the through hole (222) is aligned with the limiting sliding hole (33) when the protrusion (22) is installed in the circular arc groove (32); the driving member (2) includes at least one rotating handle (5), and the rotating handle (5) passes through the limiting sliding hole (33) and is inserted into the through hole (222); when the locking bolt (6) (34) is loosened, the rotating handle (5) can slide along the limiting sliding hole (33) under external drive, thereby driving the rotating shaft sleeve (2) to slide along the circular arc groove (32).

5. The composite fixture for adjusting the geometric angle of a turning tool as claimed in claim 2, characterized in that: The base (1) comprises a bottom plate (11) and an annular connecting plate (12), wherein the connecting plate (12) is fixed on the bottom plate (11), and a slide groove (121) is provided on the connecting plate (12). A turntable (35) is fixedly mounted on the bottom of the sleeve base (3), and an annular sliding block (351) is fixed on the side of the turntable (35) facing the connecting plate (12), and the sleeve base (3) is rotated in the vertical direction of the bottom plate (11) by sliding the sliding block (351) along the slide groove (121).

6. The composite fixture for adjusting the geometric angle of a turning tool as claimed in claim 5, characterized in that: A T-shaped plate (13) is fixedly mounted on the bottom plate (11); the connecting plate (12) is sleeved on the outside of the T-shaped plate (13); and a baffle plate (122) having the same height as the T-shaped plate (13) is provided on the side of the connecting plate (12) facing the T-shaped plate (13); a limiting groove (123) is formed between the baffle plate (122), the bottom plate (11) and the T-shaped plate (13); and at least one through hole (352) communicating with the limiting groove (123) is provided on the rotating disk (35) along its axial direction; the driven member (1) comprises a bolt (6) and a nut (7); the head of the bolt (6) is mounted in the limiting groove (123) and the rod of the bolt (6) extends out of the limiting groove (123) and passes through one of the through holes (352) and is connected to the nut (7).

7. The composite fixture for adjusting the geometric angle of a turning tool as claimed in claim 1, characterized in that: An inner ring (23) and an outer ring (24) arranged in a stepped manner are fixed on the side wall of the rotating shaft sleeve (2) opposite to the side where the turning tool (8) is installed; a circular boss (41) is provided on the turning tool rotating shaft (4); the boss (41) is installed in the outer ring (24) and the bottom of the boss (41) abuts against the surface of the inner ring (23); at least two threaded holes (231) are provided on the inner ring (23), and at least two pairs of threaded holes (231) are provided on the boss (41). The boss (41) is provided with an arc-shaped limiting hole (411), and each of the threaded holes (231) is respectively aligned with each of the limiting holes (411); the boss (41) is also provided with two locking bolts (6) (412), and each of the locking bolts (6) (412) passes through the limiting hole (411) and is threadedly fixed in the threaded hole (231). The front angle of the turning tool (8) can be adjusted by loosening the locking bolts (6) (412) and rotating the boss (41).

8. The composite fixture for adjusting the geometric angle of a turning tool as claimed in claim 1, characterized in that: A tool setting block (42) is also fixedly mounted on the turning tool rotating shaft (4), and a centering scale line is provided on the tool setting block (42), and the centering scale line and the main cutting edge of the turning tool (8) are both coincident with the central axis of the turning tool rotating shaft (4).

9. The composite fixture for adjusting the geometric angle of a turning tool as claimed in claim 2, characterized in that: The composite fixture also includes a controller, which is electrically connected to the driving member 1, the driving member 2 and the driving member 3 respectively; the controller controls the driving member 1 to drive the sleeve base (3) to rotate, thereby adjusting the main deflection angle of the turning tool (8); the controller controls the driving member 2 to drive the sleeve base (3) to rotate in the circular arc groove (32) with the center of the circle formed by the arc of the protrusion (22) as the rotation axis, thereby adjusting the blade inclination angle of the turning tool (8); the controller controls the driving member 3 to drive the turning tool rotating shaft (4) to rotate, thereby adjusting the front angle of the turning tool (8).

10. A method for adjusting the geometric angle of a turning tool, characterized in that: The method adopts the composite fixture for adjusting the geometric angle of the turning tool as described in any one of claims 1 to 9 for adjustment; the method for adjusting the geometric angle of the turning tool comprises the following steps: S1: calibrating the main cutting edge of the turning tool (8) and the centering scale line of the tool setting block (42) so that the main cutting edge of the turning tool (8) and the centering scale line coincide with each other; S2: The rotating shaft sleeve (2) is rotated with the center of the circle formed by the arc line of the protrusion (22) as the rotating shaft, so that the rotating shaft sleeve (2) can rotate clockwise or counterclockwise in the circular arc groove (32) to adjust the cutting edge inclination angle of the turning tool (8); and the turning tool rotating shaft (4) is rotated with the center line of the turning tool rotating shaft (4) in the horizontal direction as the rotating shaft, so as to adjust the front angle of the turning tool (8) under the premise of keeping the cutting edge inclination angle unchanged; S3: The main deflection angle of the turning tool (8) is adjusted by rotating the sleeve base (3) along the vertical direction of the base (1).

Images