Adjustable grooving tool

Abstract

The utility model belongs to the technical field of blades, and relates to an adjustable grooving cutter which comprises a cutter bar and a blade, the cutter bar is detachably connected with the blade, the cutter bar comprises a first bar body and a second bar body, a first spring is arranged between the first bar body and the second bar body, the two ends of the first spring are fixedly connected with the first bar body and the second bar body respectively, and a fixing piece is arranged at the end close to the first spring. A fastening hole for fixing the blade is formed in the outer wall of the first rod body, a groove cavity for placing the blade is formed between the first rod body and the second rod body, a plurality of convex teeth distributed at equal intervals are arranged on the inner wall of the groove cavity, the convex teeth and the inner wall of the groove cavity are integrally formed, the blade is provided with a cutting edge part, and the outer wall of the blade corresponds to the convex teeth and is provided with a groove for the convex teeth to extend into. The forming position of the groove does not affect cutting of the blade part; compared with the prior art, the blade does not need to be replaced frequently, only the extending length of the blade needs to be adjusted, a plurality of blades of different specifications do not need to be prepared either, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of blades, and more specifically to an adjustable grooving tool. Background Art

[0002] Grooving tools are cutting tools used for turning (when machining cylindrical metals). Grooving tools are basically defined as tools used to make narrow cavities of a certain depth on the cone, cylinder or surface of a part. In this case, the specific shape of the groove cutting tool is selected according to whether the groove cut on the edge is square, round, etc.

[0003] For example, the grooving tool disclosed in the authorization announcement number CN212285896U adopts a split design of a shank and a blade, adopts a design in which the fixed part at the rear end of the blade is clamped and positioned in the shank clamping part connection structure, and adopts a pressure plate to prevent the blade from being misplaced, thereby ensuring the connection strength between the blade and the shank. At the same time, compared with traditional tools with an integrated blade and shank design, the tool connection structure of the utility model is detachable and flexible, and blades of different lengths can be selected according to different processing techniques to meet grooving requirements of various depths.

[0004] During use, blades of different specifications need to be replaced according to different grooving depths. During the replacement process, a lot of time is wasted, which affects work efficiency. In addition, multiple blades need to be prepared for replacement, which increases production costs. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an adjustable grooving tool that can be adjusted accordingly according to the grooving depth.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An adjustable grooving tool comprises a knife bar and a blade, wherein the knife bar and the blade are detachably connected, the knife bar comprises a rod body 1 and a rod body 2, a spring 1 is arranged between the rod body 1 and the rod body 2, two ends of the spring 1 are respectively fixedly connected to the rod body 1 and the rod body 2, a fixing piece is arranged near one end of the spring 1 for fixing the rod body 1 and the rod body 2, and a fastening hole for fixing the blade is arranged on the outer wall of the rod body 1.

[0008] A groove cavity for inserting a blade is formed between the first rod body and the second rod body.

[0009] The inner wall of the groove cavity is provided with a plurality of equidistantly arranged convex teeth, and the convex teeth are integrally formed with the inner wall of the groove cavity.

[0010] The blade has a blade portion, and a groove for the convex teeth to extend into is opened on the outer wall of the blade corresponding to the convex teeth, and the opening position of the groove does not affect the cutting of the blade portion, and the length of the blade is greater than the length of the groove cavity.

[0011] The utility model is further configured as follows: the fixing part includes a connecting rod and two clamping plates, a sliding groove is provided on the side wall of the connecting rod, the cross-section of the sliding groove is in the shape of a "convex" character, one end of the two clamping plates respectively extends into the sliding groove, and the two outer walls of the clamping plates are provided with protrusions for embedding into the sliding groove, a through hole is provided on the clamping plate, a screw is provided in the through hole, a spring 2 is sleeved on the outer wall of the screw, the two ends of the spring 2 are respectively fixedly connected to the outer wall of the clamping plate and the screw nut, and a docking hole for the screw to pass through is provided on the rod body 1 and the rod body 2.

[0012] The utility model is further configured as follows: a screw is arranged in the fastening hole, and the blade is fixed in the groove cavity by tightening and squeezing the blade through the screw.

[0013] The utility model is further configured as follows: a plurality of convex points are adhered in the groove, and the convex points are made of rubber material.

[0014] The utility model is further configured as follows: a plurality of fastening holes are provided.

[0015] Compared with the shortcomings of the prior art, the beneficial effects of the utility model are:

[0016] By setting the blade and the tool rod as a detachable connection, the length of the blade placed in the groove cavity can be freely adjusted in the groove cavity, so as to achieve corresponding adjustment according to the requirements of different groove depths, thereby enhancing the maneuverability of the same grooving tool. There is no need to frequently replace the blade, only to adjust the extended length of the blade. There is no need to prepare multiple blades of different specifications, thereby reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A cross-sectional view of an embodiment of the utility model;

[0018] Figure 2 A top view of a fixing member according to an embodiment of the utility model;

[0019] Figure 3 It is an enlarged view of part A of an embodiment of the present utility model.

[0020] The knife bar 1, the blade 2, the rod body 1, the rod body 2, the spring 1, the fixing part 6, the fastening hole 7, the groove cavity 8, the convex tooth 9, the groove 10, the connecting rod 11, the pressing plate 12, the slide groove 13, the protrusion 14, the through hole 15, the spring 2 16, and the docking hole 17. DETAILED DESCRIPTION

[0021] Reference Figures 1 to 3 The utility model is further described in detail.

[0022] 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.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0024] The adjustable grooving tool comprises a tool bar 1 and a blade 2. The tool bar 1 and the blade 2 are detachably connected, so that the length of the blade 2 used for grooving can be adjusted according to needs.

[0025] The knife bar 1 includes a rod body 1 3 and a rod body 2 4, and a spring 1 5 is arranged between the rod body 1 3 and the rod body 2 4. The two ends of the spring 1 5 are respectively fixedly connected to the rod body 1 3 and the rod body 2 4, and are used to connect the rod body 1 3 and the rod body 2 4, and can make the rod body 1 3 and the rod body 2 4 fix the blade 2 more firmly.

[0026] A fixing piece 6 is provided near one end of the spring 1 5 for fixing the rod body 1 and the rod body 2 4. The fixing piece 6 comprises a connecting rod 11 and two clamping pieces 12. A slide groove 13 is provided on the side wall of the connecting rod 11. The cross section of the slide groove 13 is in the shape of a "convex" character. One end of the two clamping pieces 12 extends into the slide groove 13 respectively, and the two outer walls of the clamping pieces 12 are provided with protrusions 14 for embedding into the slide groove 13. A through hole 15 is provided on the clamping piece 12. A screw is provided in the through hole 15. A spring 2 16 is sleeved on the outer wall of the screw. The two ends of the spring 2 16 are fixedly connected to the outer wall of the clamping piece 12 and the screw nut respectively. Both the rod body 1 3 and the rod body 2 4 are provided with a docking hole 17 for the screw to pass through. The fixing strength between the rod body 1 3 and the rod body of the fixing piece 6 is changed by moving the positions of the two clamping pieces 12 in the slide groove 13, so that the length of the blade 2 can be adjusted by loosening or tightening the rod body 1 3 and the rod body.

[0027] The outer wall of the rod body 3 is provided with a fastening hole 7 for fixing the blade 2. There are multiple fastening holes 7. A screw is arranged in the fastening hole 7. The blade 2 is tightened and squeezed by the screw to fix the blade 2 in the groove cavity 8, further enhancing the stability of the blade 2.

[0028] A groove cavity 8 for the blade 2 to be placed is formed between the rod body 1 3 and the rod body 2 4. The inner wall of the groove cavity 8 is provided with a plurality of equidistantly arranged convex teeth 9. The convex teeth 9 are integrally formed with the inner wall of the groove cavity 8. The blade 2 has a cutting edge portion. The outer wall of the blade 2 is provided with a groove 10 corresponding to the convex teeth 9 for the convex teeth 9 to extend into. The connection between the blade 2 and the knife rod 1 is achieved by embedding the convex teeth 9 into the groove 10.

[0029] There are several protrusions adhered in the groove 10, and the protrusions are made of rubber material, which are used to enhance the friction between the groove 10 and the convex teeth 9, further enhancing the stability of the connection of the blade 2, and the opening position of the groove 10 does not affect the cutting of the blade part. The length of the blade 2 is greater than the length of the groove cavity 8, so that the operator can adjust the length of the groove cut by the blade 2.

[0030] Working principle: insert one end of the blade 2 into the groove cavity 8, align the convex tooth 9 with the groove 10, and insert the convex tooth 9 into the groove 10 to connect the blade 2 with the knife rod 1, then make the two clamping plates 12 contact with the rod body 1 3 and the rod body 2 4 respectively, and then tighten the screw rod. During the tightening process of the screw rod, the clamping plate 12 will move in the slide groove 13, thereby squeezing the rod body 1 3 and the rod body 2 4, so that the rod body 1 3 and the rod body 2 4 contact with the blade 2 more tightly, making the installation of the blade 2 more stable. , after tightening to the appropriate position, screw in a nut at one end of the screw rod. Spring 1 5 makes the connection between rod body 1 3 and rod body 2 4 and blade 2 tighter. Spring 2 16 makes the fixation of the screw rod and the clamping plate 12 more stable. When adjustment is required according to the different slotting depths, unscrew the screw rod to loosen the connection between the clamping plate 12 and the knife rod 1, and then adjust the position of the blade 2, embed the convex tooth 9 at the corresponding position into the groove 10, and repeat the above operation to adjust the length of the blade 2 according to the slotting depth.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any common changes and substitutions made by those skilled in the art within the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. An adjustable grooving tool, comprising a tool bar (1) and a blade (2), wherein the tool bar (1) and the blade (2) are detachably connected, and characterized in that: The blade rod (1) comprises a rod body 1 (3) and a rod body 2 (4), a spring 1 (5) is arranged between the rod body 1 (3) and the rod body 2 (4), two ends of the spring 1 (5) are respectively fixedly connected to the rod body 1 (3) and the rod body 2 (4), a fixing member (6) is arranged near one end of the spring 1 (5) for fixing the rod body 1 (3) and the rod body 2 (4), and a fastening hole (7) for fixing the blade (2) is provided on the outer wall of the rod body 1 (3). A groove cavity (8) for receiving the blade (2) is formed between the first rod body (3) and the second rod body (4). The inner wall of the groove cavity (8) is provided with a plurality of equidistantly arranged convex teeth (9), and the convex teeth (9) and the inner wall of the groove cavity (8) are integrally formed. The blade (2) has a blade portion, and an outer wall of the blade (2) is provided with a groove (10) corresponding to the convex tooth (9) for the convex tooth (9) to extend into, and the position of the groove (10) does not affect the cutting of the blade portion, and the length of the blade (2) is greater than the length of the groove cavity (8).

2. The adjustable grooving tool according to claim 1, characterized in that: The fixing member (6) comprises a connecting rod (11) and two clamping plates (12). A sliding groove (13) is provided on the side wall of the connecting rod (11). The cross section of the sliding groove (13) is in the shape of a "convex" character. One end of the two clamping plates (12) extends into the sliding groove (13) respectively, and two outer walls of the clamping plates (12) are provided with protrusions (14) for embedding into the sliding groove (13). A through hole (15) is provided on the clamping plate (12). A screw is provided in the through hole (15). A spring 2 (16) is sleeved on the outer wall of the screw. The two ends of the spring 2 (16) are respectively fixedly connected to the outer wall of the clamping plate (12) and the screw nut. A docking hole (17) for the screw to pass through is provided on the rod body 1 (3) and the rod body 2 (4).

3. The adjustable grooving tool according to claim 2, characterized in that: A screw is provided in the fastening hole (7), and the blade (2) is tightened and extruded by the screw to fix the blade (2) in the groove cavity (8).

4. The adjustable grooving tool according to claim 3, characterized in that: A plurality of protrusions are bonded inside the groove (10), and the protrusions are made of rubber material.

5. The adjustable grooving tool according to claim 4, characterized in that: A plurality of fastening holes (7) are provided.

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