Cutting tool easy to set

Abstract

The utility model relates to the technical field of machine tool cutters, in particular to a cutting tool easy to set, which comprises a cutter bar, a sliding hole is arranged at the front end of the cutter bar, an included angle alpha is formed between the sliding hole and the bottom surface of the cutter bar, and the alpha is an acute angle; the rear part of the rod adjusting part is provided with a sliding rod, and the rod adjusting part is provided with a blade; the sliding rod is axially installed in the sliding hole in a sliding mode, the position, relative to the sliding hole, of the sliding rod can be fixed, the sliding rod and the tool bar can slide relative to each other through the rod adjusting part, and after the cutting tool is installed on the tool rest, the rod adjusting part can be directly adjusted according to the height difference between the tool nose of a turning tool after trial cutting of a workpiece and the rotation center of the workpiece without disassembling the cutting tool. And when the rod adjusting part is adjusted, the blade can be closer to the rotation center of the workpiece, the tool nose height of the blade can be more accurately adjusted, the position of the rod adjusting part can be finely adjusted by rotating the adjusting bolt through the arrangement of the adjusting bolt, and the tool nose height of the blade can be more accurately controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool cutters, in particular to a cutting tool which is easy to align. Background Art

[0002] Ordinary lathes are horizontal lathes that can process various types of workpieces such as shafts, disks, rings, etc. in various processes. They are often used to process internal and external rotating surfaces, end faces, and various internal and external threads of workpieces. With corresponding tools and accessories, they can also perform drilling, reaming, tapping, knurling, etc. Ordinary lathes are the most widely used type of lathes, accounting for about 65% of the total number of lathes. Because their spindles are placed horizontally, they are called horizontal lathes.

[0003] When installing a turning tool (cutting tool), the turning tool tip needs to be aligned with the workpiece rotation center (set at the same height). The common method for the tool tip to align the center height is: install the turning tool, test cut the workpiece, and determine whether the turning tool tip height is aligned with the workpiece rotation center height based on the cutting end face. If not, loosen the turning tool bar, add a shim to the shim or remove the shim, install the turning tool on the tool holder again, test cut the workpiece again, and determine whether the turning tool tip height is aligned with the workpiece rotation center height. If not, repeat the above steps and adjust the shim again. Therefore, a certain thickness of shim is required to adjust the turning tool height, and the turning tool may need to be set with multiple shims. Therefore, in actual operation, lathe beginners generally need to align the tool multiple times and adjust the shims multiple times to complete the adjustment of the turning tool tip height, which is inefficient. Multiple test cuts of workpieces also cause material waste. Moreover, due to the limited number of shim thickness types, in most cases, the tool tip cannot be completely aligned with the workpiece rotation center height, resulting in reduced workpiece processing quality, workpiece size deviation or inaccurate shape, reduced tool cutting force and tool life, etc.

[0004] Therefore, a cutting tool that is easy to align is now provided, which can achieve efficient tool alignment of the cutting tool and better align the cutting tool tip height with the workpiece rotation center height. Utility Model Content

[0005] The utility model aims to provide a cutting tool which is easy to align, so as to solve the problem of cutting tool alignment mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a cutting tool that is easy to align, comprising:

[0007] A knife bar, wherein a sliding hole is provided at the front end of the knife bar, and an angle α is formed between the sliding hole and the bottom surface of the knife bar, wherein α is an acute angle;

[0008] A rod adjusting part, wherein a sliding rod is provided at the rear of the rod adjusting part, and a blade is provided at the rod adjusting part;

[0009] A slide rod is axially slidably installed in the slide hole, and the position of the slide rod relative to the slide hole can be fixed.

[0010] As a preferred solution, the angle 30°≤α≤60°.

[0011] As a preferred solution, a key groove I is provided on the side of the slide rod, a key groove II is provided on the inner side of the slide hole, the positions of the key groove I and the key groove II correspond, and sliding keys are provided on the inner sides of the key groove I and the key groove II.

[0012] As a preferred solution, a clamping bolt is threadedly connected to the side surface of the knife rod, and the clamping bolt extends into the sliding hole.

[0013] As a preferred solution, a threaded through hole is provided in the middle of the slide rod, an adjusting bolt is provided in the threaded through hole, and a screw end of the adjusting bolt is rotatably connected to the bottom of the slide hole and is axially fixed.

[0014] As a preferred embodiment, a stepped shaft is provided at the end of the screw of the adjusting bolt, the stepped shaft diameter D is smaller than the minor diameter d1 of the screw of the adjusting bolt, the stepped shaft is rotatably mounted in the rotating hole, the rotating hole diameter is the same as the stepped shaft diameter, the rotating hole is arranged at the bottom of the sliding hole, and a front shaft is arranged at the front end of the stepped shaft, and a locking piece is axially fixedly installed on the front shaft.

[0015] As a preferred solution, the locking member includes a locking nut, the front axle has an external thread, the front axle is installed with a locking nut, and an end bearing is provided between the locking nut and the rotating hole.

[0016] As a preferred solution, the rod adjustment portion is provided with a countersunk hole, the head of the adjustment bolt is located in the countersunk hole, a concave annular groove is provided on the outer side of the head, and a rubber ring is installed in the concave annular groove.

[0017] As a preferred embodiment, a vertical end face I is provided on the inner side of the rod adjustment portion, and a vertical end face II is provided on the end of the knife rod. The vertical end face II corresponds to the vertical end face I in position, and the vertical end faces I and II are perpendicular to the axis of the sliding hole. A shock-absorbing spring pad is provided between the vertical end faces I and II.

[0018] As a preferred solution, a side plate is provided at the lower part of the rod adjusting part, a long hole is provided in the middle of the side plate, a fastening bolt is provided in the long hole, the fastening bolt is threadedly connected to the side sliding surface, the side sliding surface corresponds to the side plate, and the side sliding surface is parallel to the axis of the sliding hole.

[0019] Compared with the prior art, the utility model provides a cutting tool that is easy to align.

[0020] Beneficial effects:

[0021] 1. The rod adjustment part and the tool rod can slide relative to each other. After the cutting tool is installed on the tool holder, the rod adjustment part can be directly adjusted according to the height difference between the tool tip (blade tip) and the workpiece rotation center after trial cutting of the workpiece, without disassembling the cutting tool, that is, there is no need to install shims multiple times, which improves efficiency. Moreover, when adjusting the rod adjustment part, the blade can be closer to the workpiece rotation center (because it does not need to be disassembled), and the blade tip height can be adjusted more accurately.

[0022] 2. By adjusting the setting of the bolt, the position of the fine-tuning rod of the bolt can be rotated to adjust the position, so that the height of the blade tip can be controlled more accurately without being limited by the thickness, type and quantity of the gasket. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is an illustration of the structure of this application Figure Ⅰ ;

[0024] Figure 2 This is a cross-sectional view of this application;

[0025] Figure 3 This is an illustration of the structure of this application Figure II ;

[0026] Figure 4 This is a schematic structural diagram of an embodiment of a knife bar of the present application;

[0027] Figure 5 The structure diagram of the rod adjustment part for this application Figure Ⅰ ;

[0028] Figure 6 The structure diagram of the rod adjustment part for this application Figure II ;

[0029] Figure 7 Adjust the bolt structure diagram for this application;

[0030] Figure 8 Adjust the bolt front view for this application;

[0031] Fig. 9 This is a cross-sectional view of the tool bar for this application;

[0032] Fig.10 This is a schematic diagram of the tool bar structure of this application;

[0033] Fig.11 Exploded view for this application;

[0034] Fig.12 This is a schematic diagram of the upward movement of the adjustment part of the adjustment rod in this application;

[0035] Fig.13 This is a schematic diagram of the downward movement of the adjustment part of the adjustment rod in this application;

[0036] Fig.14 Schematic diagram of the rotary workpiece processed for this application.

[0037] In the figure: 1, tool bar, 101, sliding hole, 1011, keyway II, 102, rotating hole, 103, vertical end surface II, 104, side sliding surface,

[0038] 2. Rod adjustment part, 201, slide rod, 2011, threaded through hole, 2012, keyway Ⅰ, 202, vertical end face Ⅰ, 203, countersunk hole,

[0039] 3. Blade,

[0040] 4. Pressing block,

[0041] 5. Adjusting bolt, 501, screw, 502, stepped shaft, 503, front shaft, 504, head, 5041, concave ring groove,

[0042] 6. Slide keys,

[0043] 7. Rubber ring,

[0044] 8. Shock-absorbing pads,

[0045] 9. Locking piece, 901. Locking nut, 902. End bearing,

[0046] 10. Side panel, 1001, long holes,

[0047] 11. Tighten the bolts.

[0048] 12. Tighten the bolts. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0050] In the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "fixation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral structure; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0052] See also Figure 1-14 The utility model provides a technical solution: a cutting tool that is easy to align, comprising:

[0053] The tool bar 1 is used to fix the cutting tool on the lathe tool holder. The front end of the tool bar 1 is provided with a sliding hole 101. Figure 2 As shown, the sliding hole 101 and the bottom surface of the shank 1 have an angle α, and the angle α is an acute angle;

[0054] The rod adjusting part 2 can be adjusted in position. A sliding rod 201 is provided at the rear of the rod adjusting part 2. The rod adjusting part 2 is provided with a blade 3. The blade 3 is preferably detachably mounted on the rod adjusting part 2. The blade 3 is mounted at a specific position at the front end of the rod adjusting part 2 and fixed by a knife pressing block 4. The blade 3 is mounted on the rod adjusting part 2 by adopting a common technical means in the art, which will not be described in detail here.

[0055] In order to adjust the position of the rod adjusting portion 2, the sliding rod 201 is axially slidably installed in the sliding hole 101, that is, the sliding rod 201 can slide axially relative to the sliding hole 101, but cannot rotate relatively. The position of the rod adjusting portion 2 is adjusted by changing the position of the sliding rod 201 relative to the sliding hole 101, and the position of the sliding rod 201 relative to the sliding hole 101 can be fixed, so that the position of the rod adjusting portion 2 remains unchanged after adjustment.

[0056] In some embodiments, the included angle α between the sliding hole 101 and the bottom surface of the shank 1 is defined as follows: Fig.14As shown, when the blade 3 (cutting tool) is processing a workpiece, the blade 3 will be subjected to a downward force F. If the angle α is too large, the contact side of the slide hole 101 and the slide rod 201 cannot provide a larger upward force component. On the contrary, if the angle α is too small, although the contact side of the slide hole 101 and the slide rod 201 can provide a larger upward force component, when the height of the blade 3 is adjusted by sliding the slide rod 201 relative to the slide hole 101, due to the small angle α, the slide rod 201 extends or retracts a long distance relative to the slide hole 101. The height adjustment of the blade 3 is relatively short, resulting in a reduction in the height adjustment range of the cutting tool. Therefore, it is better that 30°≤α≤60°, for example 35°, 40°, 50°, 55°, etc., and more preferably, α=45°. At this time, when the adjustment slide bar 201 slides relative to the slide hole 101, the horizontal movement distance of the rod adjustment part 2 relative to the tool rod 1 is the same as the vertical movement distance. At this time, the movement path of the tip of the blade 3 is easier to predict and grasp, which effectively improves the efficiency and accuracy of the height adjustment of the blade 3.

[0057] In some embodiments, a structure is provided in which a sliding rod 201 is axially slidably installed in a sliding hole 101. In order to reduce the difficulty of processing, a key groove I 2012 is provided on the side of the sliding rod 201, and a key groove II 1011 is provided on the inner side of the sliding hole 101. The key groove I 2012 corresponds to the position of the key groove II 1011. A sliding key 6 is provided on the inner side of the key groove I 2012 and the key groove II 1011, and the sliding key 6 is slidably connected to at least one of the key groove I 2012 and the key groove II 1011.

[0058] One embodiment: The rod adjustment part 2 is adjusted by tightening the bolt 12 on the side of the knife rod 1:

[0059] The present embodiment provides a fixing mechanism for a slide rod 201 and a slide hole 101: a clamping bolt 12 is threadedly connected to the side surface of the knife rod 1, and the clamping bolt 12 extends into the slide hole 101. By rotating the clamping bolt 12, when the clamping bolt 12 moves away from the slide hole 101, the slide rod 201 can slide axially in the slide hole 101. When the rod adjustment part 2 reaches the desired position, the clamping bolt 12 is rotated to move toward the slide hole 101 and press the slide rod 201, so that the slide rod 201 cannot move axially relative to the slide hole 101, thereby fixing the position of the rod adjustment part 2.

[0060] One embodiment: adjusting the rod adjustment part 2 by adjusting the bolt 5:

[0061] In the previous embodiment, the lever adjusting portion 2 is adjusted by the clamping bolt 12. First, the above embodiment cannot achieve fine adjustment of the lever adjusting portion 2, that is, directly pushing and pulling the lever adjusting portion 2. For a smaller height difference between the tip of the blade 3 and the center of rotation of the workpiece, the adjustment is difficult. Secondly, the clamping bolt 12 is in pressing contact with the slide bar 201, and it is easy for the slide bar 201 to slide relative to the slide hole 101 when the blade 3 and / or the rod adjusting portion 2 are subjected to force, resulting in failure of the fixation of the slide bar 201 and the slide hole 101. Therefore, in this example, a better fixing mechanism of the slide bar 201 and the slide hole 101 is provided: a threaded through hole 2011 is provided in the middle of the slide bar 201, and the thread An adjusting bolt 5 is provided in the through hole 2011, and the end of the screw rod 501 of the adjusting bolt 5 is rotatably connected to the bottom of the sliding hole 101 and is axially fixed, that is, the adjusting bolt 5 can only rotate, but the axial position will not change, so that when the adjusting bolt 5 is rotated, its screw rod 501 will push the sliding rod 201 to move axially, and the threadedly connected adjusting bolt 5 and the sliding rod 201 can always control the position of the sliding rod 201 during the entire adjustment process of the sliding rod 201, and can achieve precise adjustment of the sliding rod 201, and the threaded through hole 201 is provided inside the sliding rod 201 to cooperate with the adjusting bolt 5 threadedly, which effectively prevents the fixing failure of the sliding rod 201 and the sliding hole 101.

[0062] Furthermore, a structure is provided in which the adjusting bolt 5 is rotatably connected to the bottom of the sliding hole 101 and is axially fixed: Figure 2 , Figure 7 to Figure 9 As shown, the end of the screw rod 501 of the adjusting bolt 5 is provided with a stepped shaft 502, the diameter D of the stepped shaft 502 is smaller than the minor diameter d1 of the screw rod 501 of the adjusting bolt 5, the stepped shaft 502 is rotatably mounted on the rotating hole 102, the diameter of the rotating hole 102 is the same as the diameter of the stepped shaft 502, at this time the diameter of the screw rod 501 is larger than the diameter of the rotating hole 102, so that the screw rod 501 cannot enter the rotating hole 102, the rotating hole 102 is arranged at the bottom of the sliding hole 101, that is, through the end of the screw rod 501 and the sliding hole 101 A support is formed at the bottom, thereby generating an axial supporting force for the adjusting bolt 5. A front shaft 503 is arranged at the front end of the stepped shaft 502. The front shaft 503 may be a part of the stepped shaft 502, and the diameter of the front shaft 503 may be the same as the diameter of the stepped shaft 502. A locking member 9, such as a retaining spring, is axially fixedly installed on the front shaft 503. The locking member 9 limits the movement of the front shaft 503 in the direction of the stepped shaft 502. Through the above arrangement, the adjusting bolt 5 is limited to only circumferential rotation but not axial movement.

[0063] Furthermore, in order to prevent the adjusting bolt 5 from axially shaking, a locking piece 9 structure is provided, wherein the locking piece 9 includes a locking nut 901, and the front shaft 503 has an external thread. The locking nut 901 is installed on the front shaft 503, and the end of the screw rod 501 is pressed against the bottom of the sliding hole 101 by tightening the locking nut 901, thereby preventing the adjusting bolt 5 from axially shaking. Since the adjusting bolt 5 needs to rotate the adjusting rod adjusting part 2, in order to prevent the locking nut 901 from directly contacting the knife rod 1 and causing the locking nut 901 to loosen due to the friction force, an end face bearing 902 is provided between the locking nut 901 and the rotating hole 102.

[0064] Furthermore, in order to prevent the adjusting bolt 5 from rotating automatically during the processing. Figure 2 , Figure 5 As shown, the rod adjustment portion 2 is provided with a countersunk hole 203, the head 504 of the adjusting bolt 5 is located in the countersunk hole 203, a concave annular groove 5041 is provided on the outer side of the head 504, a rubber ring 7 is installed in the concave annular groove 5041, and the friction between the head 504 of the adjusting bolt 5 and the countersunk hole 203 is increased by the rubber ring 7, so that the adjusting bolt 5 can be effectively prevented from rotating by itself.

[0065] One embodiment: Setting the shock-absorbing spring pad 8:

[0066] The tool bar 1 and the rod adjustment part 2 are connected to the slide bar 201 through the slide hole 101. During the turning process of the lathe, the rod adjustment part 2 is subjected to force, and the rod adjustment part 2 is easy to vibrate relative to the tool bar 1. Therefore, a vertical end surface Ⅰ202 is provided on the inner side of the rod adjustment part 2, and a vertical end surface Ⅱ103 is provided on the end of the tool bar 1. The vertical end surface Ⅱ103 corresponds to the position of the vertical end surface Ⅰ202. The vertical end surface Ⅰ202 and the vertical end surface Ⅱ103 are perpendicular to the axis of the slide hole 101. That is, during the adjustment process of the rod adjustment part 2, the vertical end surface Ⅰ202 Only the vertical distance between the vertical end surface Ⅰ202 and the vertical end surface Ⅱ103 changes, and the two will not slide relative to each other. A shock-absorbing spring pad 8 is arranged between the vertical end surface Ⅰ202 and the vertical end surface Ⅱ103. The shock-absorbing spring pad 8 can effectively absorb vibration. The shock-absorbing spring pad 8 has elasticity and can be thickened or thinned with the adjustment of the rod adjustment part 2, that is, the size of the gap between the vertical end surface Ⅰ202 and the vertical end surface Ⅱ103. The shock-absorbing spring pad 8 is always in contact with the vertical end surface Ⅰ202 and the vertical end surface Ⅱ103. Further, as Fig.11 The shock-absorbing spring pad 8 shown in the figure is provided with a plurality of grooves so as to make the compression of the shock-absorbing spring pad 8 more flexible, so as to accommodate the deformed portion of the shock-absorbing spring pad 8 during the compression process of the shock-absorbing spring pad 8.

[0067] One embodiment: side panel 10 is provided:

[0068] In order to further enhance the connection strength between the tool rod 1 and the rod adjustment part 2 and prevent the rod adjustment part 2 from vibrating relative to the tool rod 1, a side plate 10 is provided at the lower part of the rod adjustment part 2, and a long hole 1001 is provided in the middle of the side plate 10. A fastening bolt 11 is provided in the long hole 1001, and the fastening bolt 11 is threadedly connected to the side sliding surface 104. The side sliding surface 104 corresponds to the side plate 10, and the side sliding surface 104 is parallel to the axis of the sliding hole 101. When it is necessary to adjust the rod adjustment part 2, the fastening bolt 11 is loosened. After the adjustment of the rod adjustment part 2 is completed, the fastening bolt 11 is tightened, which effectively increases the connection strength between the tool rod 1 and the rod adjustment part 2 and increases the overall strength of the cutting tool of the present application.

[0069] Instructions for use: When using the cutting tool of the present application, a certain gap is adjusted between the adjusting rod portion 2 and the tool rod 1 to ensure that the tip of the blade 3 can be adjusted upward and / or downward in the later stage. The cutting tool is mounted on the tool holder, the lathe is started and a workpiece is cut for trial. After that, the height difference between the tip of the blade 3 and the rotation center of the workpiece is observed, and the tool holder is adjusted to drive the cutting tool to move so that the blade 3 is away from the workpiece by a certain distance. The fastening bolt 11 is loosened, and the adjusting bolt 5 is rotated to adjust the adjusting rod portion 2 upward and / or downward according to the height difference between the tip of the blade 3 and the rotation center of the workpiece, thereby driving the tip of the blade 3 to be adjusted upward and / or downward. Fig.13 As shown, the tip of the blade 3 is higher than the rotation center of the workpiece, and the rod adjustment part 2 is adjusted downward. Fig.12 As shown, the tip of the blade 3 is lower than the center of rotation of the workpiece. The rod adjusting part 2 is adjusted upward. After the adjustment of the rod adjusting part 2 is completed, the fastening bolt 11 is tightened, and the workpiece is cut again. The height difference between the tip of the blade 3 and the center of rotation of the workpiece is continued to be observed to determine whether it is necessary to adjust the rod adjusting part 2 and the blade 3 again. If necessary, repeat the above adjustment action. If not, the next workpiece processing step can be carried out. During the entire height adjustment process of the cutting tool, there is no need to loosen and / or remove the cutting tool from the tool holder.

[0070] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cutting tool that is easy to align, characterized in that: include: A knife bar (1), wherein a sliding hole (101) is provided at the front end of the knife bar (1), wherein an angle α is formed between the sliding hole (101) and the bottom surface of the knife bar (1), wherein α is an acute angle; a rod adjustment portion (2), wherein a sliding rod (201) is provided at the rear of the rod adjustment portion (2), wherein the rod adjustment portion (2) is provided with a blade (3); the sliding rod (201) is axially slidably installed in the sliding hole (101), and the position of the sliding rod (201) relative to the sliding hole (101) can be fixed.

2. The easy-to-align cutting tool according to claim 1, characterized in that: The 30°≤α≤60°.

3. The easy-to-align cutting tool according to claim 1, characterized in that: A key groove I (2012) is provided on the side of the slide rod (201), a key groove II (1011) is provided on the inner side of the slide hole (101), the key groove I (2012) corresponds to the position of the key groove II (1011), and sliding keys (6) are provided on the inner sides of the key groove I (2012) and the key groove II (1011).

4. The easy-to-align cutting tool according to claim 1, characterized in that: The side surface of the knife rod (1) is threadedly connected to install a clamping bolt (12), and the clamping bolt (12) extends into the sliding hole (101).

5. The easy-to-align cutting tool according to claim 1, characterized in that: A threaded through hole (2011) is provided in the middle of the slide rod (201), an adjusting bolt (5) is provided in the threaded through hole (2011), and the end of the screw rod (501) of the adjusting bolt (5) is rotatably connected to the bottom of the slide hole (101) and axially fixed.

6. The easy-to-align cutting tool according to claim 5, characterized in that: The end of the screw rod (501) of the adjusting bolt (5) is provided with a stepped shaft (502), the diameter D of the stepped shaft (502) is smaller than the minor diameter d1 of the screw rod (501) of the adjusting bolt (5), the stepped shaft (502) is rotatably mounted on the rotating hole (102), the diameter of the rotating hole (102) is the same as the diameter of the stepped shaft (502), the rotating hole (102) is arranged at the bottom of the sliding hole (101), the front end of the stepped shaft (502) is provided with a front shaft (503), and the front shaft (503) is axially fixedly mounted with a locking member (9).

7. The easy-to-align cutting tool according to claim 6, characterized in that: The locking member (9) comprises a locking nut (901), the front shaft (503) has an external thread, the locking nut (901) is installed on the front shaft (503), and an end face bearing (902) is provided between the locking nut (901) and the rotating hole (102).

8. The easy-to-align cutting tool according to claim 5, characterized in that: The rod adjustment portion (2) is provided with a countersunk hole (203), the head (504) of the adjustment bolt (5) is located in the countersunk hole (203), a concave annular groove (5041) is provided on the outside of the head (504), and a rubber ring (7) is installed in the concave annular groove (5041).

9. The easy-to-align cutting tool according to any one of claims 1 to 8, characterized in that: A vertical end surface I (202) is arranged on the inner side of the rod adjustment portion (2), and a vertical end surface II (103) is arranged on the end of the knife rod (1). The vertical end surface II (103) corresponds to the vertical end surface I (202) in position. The vertical end surface I (202) and the vertical end surface II (103) are perpendicular to the axis of the sliding hole (101), and a shock-absorbing spring pad (8) is arranged between the vertical end surface I (202) and the vertical end surface II (103).

10. The easy-to-align cutting tool according to any one of claims 1 to 8, characterized in that: A side plate (10) is provided at the lower part of the rod adjustment part (2), a long hole (1001) is provided in the middle part of the side plate (10), a fastening bolt (11) is provided in the long hole (1001), the fastening bolt (11) is threadedly connected to a side sliding surface (104), the side sliding surface (104) corresponds to the side plate (10), and the side sliding surface (104) is parallel to the axis of the sliding hole (101).

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