Damping and shock-absorbing turning tool

Abstract

The utility model discloses a damping shock-absorbing turning tool which comprises a shock-absorbing turning tool rod body and a double-tail type tool bit which is fixedly connected with one end of the shock-absorbing turning tool rod body in a bolting mode, two symmetrical concave portions are arranged at the position, on one side of the double-tail type tool bit, of the end of the shock-absorbing turning tool rod body, and convex foot portions are arranged on the two sides of the top end of the double-tail type tool bit. Turning tool bodies are arranged on the surfaces of the two protruding foot parts, and surrounding type bolting structures used for fixing the turning tool bodies are arranged on the back faces of the protruding foot parts. The two turning tool bodies which are symmetrically distributed in the Y shape are formed on the double-tail type tool bit, the turning tool bodies can be more evenly installed at the end of the damping turning tool rod body due to the Y-shaped symmetrical structural form, vibration force caused by the asymmetrical structure of the tool bodies is reduced, and by balancing the vibration force, the turning tool body can be more evenly installed at the end of the damping turning tool rod body. And vibration and deformation in the machining process can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of turning tools, in particular to a damping and shock-absorbing turning tool. Background Art

[0002] The vibration-damping turning tool is an important tool for machining deep inner holes. Its structure mainly includes a tool bar, a blade and a vibration-damping device. The vibration-damping device is a key component of the vibration-damping turning tool, which is usually composed of a vibration-damping rod, a vibration-damping plate and a vibration-damping bolt. The vibration-damping rod is filled with vibration-damping materials. The vibration-damping plate adopts a specially designed structure and material. The vibration-damping bolt fixes the vibration-damping plate and the blade. The working principle of the vibration-damping turning tool is to convert vibration energy into other forms of energy through the synergistic effect of these structural components, and reduce the transmission of vibration to the tool and the workpiece, thereby improving the processing quality and efficiency.

[0003] As disclosed in the authorization announcement number CN115122119A, a shock-proof tool rod comprises an inner hole tool sleeve, a cylindrical tool rod and a circular shock-proof tension cover plate, the inner hole tool sleeve is provided with a circular through hole, the tool rod comprises a tool rod main body for mounting a turning tool and a tool rod tail for mounting the tool rod, the diameter of the tool rod tail is smaller than the diameter of the tool rod main body, a tool rod limiting end face is provided between the tool rod tail and the tool rod main body, the two ends of the through hole of the inner hole tool sleeve are a head end and a tail end, respectively, and the shock-proof tension cover plate is used to reduce the vibration deformation of the tool to avoid the occurrence of tool vibration. However, in this technical solution, the end of the shock-absorbing tool rod away from the base is often equipped with a turning tool for use, and the structural form of the single turning tool will make the end structure of the shock-absorbing guide rod asymmetric, causing the shock-absorbing guide rod to resonate, and it is easily affected by large vibration force and cutting force during processing, which is particularly unfavorable for workpieces that require high-precision processing and will result in a decrease in processing accuracy. Utility Model Content

[0004] The utility model aims to provide a damping and shock-absorbing turning tool, wherein the turning tool body can be installed at the end of the shock-absorbing turning tool rod body in a Y-shaped symmetrical structure to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a damping and shock-absorbing turning tool, comprising a shock-absorbing turning tool rod body and a double-tailed cutter head bolted and fixed at one end of the shock-absorbing turning tool rod body, and two symmetrical recessed portions are provided at the end of the shock-absorbing turning tool rod body on one side of the double-tailed cutter head, convex feet are provided on both sides of the top of the double-tailed cutter head, and the surfaces of the two convex feet are provided with the turning tool body, and the back of the convex foot is provided with a surrounding bolting structure for fixing the turning tool body.

[0006] Preferably, rectangular cutout portions are provided on both side outer walls of the damping turning tool rod body.

[0007] Preferably, a discharge cavity is provided at the end of the damping turning tool rod body between the two recessed portions.

[0008] Preferably, a connecting column is fixed on the back of the double-tail cutter head, and a rectangular butt joint is fixed on the end of the connecting column away from the double-tail cutter head. The interior of the shock-absorbing turning tool rod body is provided with an integrally formed columnar sink cavity and a square recess, and the square recess and the rectangular butt joint fit together.

[0009] Preferably, the surrounding bolting structure includes a central bolt installed on the back of the convex foot portion, and a plurality of auxiliary bolts surrounding the outside of the central bolt, and the threaded ends of the central bolt and the auxiliary bolts extend to the interior of the turning tool body.

[0010] Preferably, the top and bottom ends of the rectangular joint are both provided with elastic feedback structures, and the top wall and bottom of the square concave portion are provided with grooves that overlap with the movable ends of the elastic feedback structures.

[0011] Preferably, the elastic feedback structure includes a hollow column fixed inside the rectangular joint, and support plates fixed at the top and bottom ends of the hollow column, a guide rod is slidably installed inside the support plate, and a ball head overlapping the groove is fixed at the top of the guide rod, and a coil spring is installed on the outer surface of the guide rod below the ball head.

[0012] Preferably, the bottom end of the guide rod penetrates to the outside of the support sheet and extends to the inside of the hollow column, and the outer diameter of the guide rod is equal to the inner diameter of the hollow column.

[0013] Compared with the prior art, the beneficial effect of the utility model is that the damping and shock-absorbing turning tool is provided with a double-tailed cutter head and a shock-absorbing turning tool rod body and other structures that cooperate with each other, and the turning tool body is fixed on the back of the convex foot part by a surrounding bolting structure, thereby forming two turning tool bodies symmetrically distributed in a Y shape on the double-tailed cutter head. The Y-shaped symmetrical structure can make the turning tool body more balanced when installed at the end of the shock-absorbing turning tool rod body, reducing the vibration force caused by the asymmetric structure of the cutter body. By balancing the vibration force, the vibration and deformation in the processing process can be effectively reduced, and the processing quality and processing accuracy can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0015] Figure 2 It is a three-dimensional cross-sectional structural schematic diagram of the utility model;

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 4It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 5 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0019] In the figure: 1. shock-absorbing turning tool rod body; 101. rectangular cut-out portion; 102. recessed portion; 103. columnar sinker cavity; 104. square recess; 105. discharge cavity; 2. double-tail cutter head; 3. convex foot portion; 4. turning tool body; 5. surrounding bolted structure; 501. center bolt; 502. auxiliary bolt; 6. connecting column; 7. rectangular butt joint; 8. elastic feedback structure; 801. hollow column; 802. support plate; 803. guide rod; 804. ball head; 805. groove; 806. spiral spring. DETAILED DESCRIPTION

[0020] 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. 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.

[0021] See also Figure 1-5 The utility model provides an embodiment: a damping shock absorbing turning tool, comprising a shock absorbing turning tool rod body 1 and a double-tailed cutter head 2 bolted and fixed at one end of the shock absorbing turning tool rod body 1, and two symmetrical recessed parts 102 are arranged at the end of the shock absorbing turning tool rod body 1 on one side of the double-tailed cutter head 2, convex feet 3 are arranged on both sides of the top of the double-tailed cutter head 2, and the surfaces of the two convex feet 3 are both provided with a turning tool body 4, and the back of the convex feet 3 is provided with a surrounding bolting structure 5 for fixing the turning tool body 4;

[0022] Two turning tool bodies 4 are formed on the double-tailed cutting head 2 and are symmetrically distributed in a Y shape. The Y-shaped symmetrical structure can make the turning tool body 4 more balanced when installed at the end of the shock-absorbing turning tool rod body 1;

[0023] A connecting column 6 is fixed to the back of the double-tail cutter head 2, and a rectangular butt joint 7 is fixed to the end of the connecting column 6 away from the double-tail cutter head 2. The interior of the shock-absorbing turning tool rod body 1 is provided with an integrally formed columnar sinking cavity 103 and a square recess 104. The square recess 104 and the rectangular butt joint 7 coincide with each other. When the shock-absorbing turning tool rod body 1 and the double-tail cutter head 2 are connected, the connecting column 6 and the rectangular butt joint 7 on the back of the double-tail cutter head 2 are inserted into the interior of the shock-absorbing turning tool rod body 1. At this time, the columnar sinking cavity 103 and the square recess 104 are respectively used as the connecting parts of the connecting column 6 and the rectangular butt joint 7. Then, the shock-absorbing turning tool rod body 1 and the double-tail cutter head 2 can be bolted together. The connection column 6 and the rectangular butt joint 7 can effectively improve the connection rigidity between the double-tail cutter head 2 and the shock-absorbing turning tool rod body 1.

[0024] The surrounding bolt connection structure 5 includes a central bolt 501 installed on the back of the convex foot portion 3, and a plurality of auxiliary bolts 502 surrounding the outer side of the central bolt 501. The threaded ends of the central bolt 501 and the auxiliary bolts 502 extend into the interior of the tool body 4. When the tool body 4 and the convex foot portion 3 are connected, the central bolt 501 and the auxiliary bolts 502 are respectively screwed into the tool body 4 from the back of the convex foot portion 3, which improves the connection stability between the convex foot portion 3 and the tool body 4, making the overall structure of the two more stable.

[0025] The top and bottom ends of the rectangular joint 7 are both provided with elastic feedback structures 8, and the top wall and bottom of the square recess 104 are provided with grooves 805 that overlap with the movable ends of the elastic feedback structures 8;

[0026] A rectangular cut-out portion 101 is provided on both sides of the outer wall of the damping turning tool rod body 1, and a discharge cavity 105 is provided at the end of the damping turning tool rod body 1 between the two recessed portions 102. The discharge cavity 105 serves as a waste discharge area. The recessed portion 102 is provided to facilitate users to screw the center bolt 501 and the auxiliary bolt 502.

[0027] The elastic feedback structure 8 includes a hollow column 801 fixed inside the rectangular butt joint 7, and a support sheet 802 fixed at the top and bottom of the hollow column 801. A guide rod 803 is slidably installed inside the support sheet 802, and a ball head 804 overlapped with the groove 805 is fixed at the top of the guide rod 803. A spiral spring 806 is installed on the outer surface of the guide rod 803 below the ball head 804. When the connecting column 6 and the rectangular butt joint 7 are plugged into place with the shock-absorbing turning tool rod body 1, the elastic feedback structure 8 is buckled with the groove 805 to provide feedback to the staff that the connecting parts are installed in place, that is, the spiral spring 806 always forces the ball head 804 and the guide rod 803 to move up. When the end of the ball head 804 encounters the groove 805, the ball head 804 is pushed into the groove 805 under the action of the spiral spring 806.

[0028] The bottom end of the guide rod 803 penetrates the outside of the support sheet 802 and extends to the inside of the hollow column 801. The outer diameter of the guide rod 803 is equal to the inner diameter of the hollow column 801. The support sheet 802 and the hollow column 801 guide and support the sliding of the guide rod 803.

[0029] The elastic feedback structure 8 can assist the rectangular butt joint 7 and the square recess 104 in providing certain support and auxiliary force during the plug-in process; when it is necessary to withdraw the connecting column 6 and the rectangular butt joint 7 to the outside of the shock-absorbing tool rod body 1, the staff will release the bolting restrictions of the shock-absorbing tool rod body 1 and the double-tail cutter head 2 in advance. At this time, since the ball head 804 and the groove 805 are not completely overlapped, the connecting column 6 and the rectangular butt joint 7 can be pulled out forcefully.

[0030] When the embodiment of the present application is in use, the staff first takes out the inner hole tool sleeve, the shock-absorbing turning tool rod body 1, the double-tailed cutter head 2 and the convex foot portion 3 in sequence. At this time, the shock-absorbing turning tool rod body 1 is pre-fixed in the inner hole tool sleeve, and then the staff fixes the double-tailed cutter head 2 to the end of the shock-absorbing turning tool rod body 1 away from the inner hole tool sleeve in the form of bolts, that is, the double-tailed cutter head 2 is fixed to the end of the shock-absorbing turning tool rod body 1. At this time, the double-tailed cutter head 2 forms two areas for the turning tool body 4 to be installed at the end of the shock-absorbing turning tool rod body 1, that is, the back of the turning tool body 4 is concentrically attached to the surface of the convex foot portion 3, and The back of the convex foot portion 3 is fixed to the tool body 4 by a surrounding bolting structure 5. The surrounding bolting structure 5 can effectively enhance the connection rigidity between the tool body 4 and the convex foot portion 3, making the overall structure more stable, thereby forming two tool bodies 4 symmetrically distributed in a Y shape on the double-tail tool head 2. The Y-shaped symmetrical structure can make the tool body 4 more balanced when installed at the end of the shock-absorbing tool rod body 1, reducing the vibration force caused by the asymmetric structure of the tool body. By balancing the vibration force, the vibration and deformation during the processing can be effectively reduced, thereby improving the processing quality and processing accuracy.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A damping and vibration absorbing turning tool, Features: The invention comprises a shock-absorbing turning tool rod body (1) and a double-tailed cutting head (2) bolted and fixed at one end of the shock-absorbing turning tool rod body (1), and the end of the shock-absorbing turning tool rod body (1) on one side of the double-tailed cutting head (2) is provided with two symmetrical recessed portions (102), both sides of the top of the double-tailed cutting head (2) are provided with convex feet (3), and the surfaces of the two convex feet (3) are provided with a turning tool body (4), and the back of the convex feet (3) is provided with a surrounding bolting structure (5) for fixing the turning tool body (4).

2. A damping and vibration absorbing turning tool according to claim 1, Features: Rectangular cut-out portions (101) are provided on the outer walls of both sides of the damping turning tool rod body (1).

3. A damping and vibration absorbing turning tool according to claim 1, Features: A material discharge cavity (105) is provided at the end of the damping turning tool rod body (1) between the two recessed portions (102).

4. A damping and vibration absorbing turning tool according to claim 1, Features: A connecting column (6) is fixed on the back of the double-tailed cutter head (2), and a rectangular butt joint (7) is fixed on one end of the connecting column (6) away from the double-tailed cutter head (2); an integrally formed columnar sink cavity (103) and a square recess (104) are provided inside the shock-absorbing turning tool rod body (1); the square recess (104) and the rectangular butt joint (7) are mutually matched.

5. A damping and vibration absorbing turning tool according to claim 1, Features: The surrounding bolt connection structure (5) comprises a central bolt (501) installed on the back of the convex foot portion (3), and a plurality of auxiliary bolts (502) surrounding the outer side of the central bolt (501), and the threaded ends of the central bolt (501) and the auxiliary bolts (502) extend to the interior of the turning tool body (4).

6. A damping and vibration absorbing turning tool according to claim 4, Features: The top and bottom ends of the rectangular joint (7) are both provided with an elastic feedback structure (8), and the top wall and bottom of the square recess (104) are provided with a groove (805) that overlaps with the movable end of the elastic feedback structure (8).

7. A damping and vibration absorbing turning tool according to claim 6, Features: The elastic feedback structure (8) comprises a hollow column (801) fixed inside the rectangular joint (7), and a support sheet (802) fixed at the top and bottom ends of the hollow column (801); a guide rod (803) is slidably mounted inside the support sheet (802); a ball head (804) overlapped with the groove (805) is fixed at the top of the guide rod (803); and a coil spring (806) is mounted on the outer surface of the guide rod (803) below the ball head (804).

8. A damping and vibration absorbing turning tool according to claim 7, Features: The bottom end of the guide rod (803) penetrates the outside of the support sheet (802) and extends to the inside of the hollow column (801), and the outer diameter of the guide rod (803) is equal to the inner diameter of the hollow column (801).

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