Energy-absorbing and shock-absorbing deep hole boring bar

Abstract

According to the energy-absorbing and cushioning deep hole boring rod, the boring rod body is of the hollow structure, the cavity in the boring rod body can be used for being filled with the energy-absorbing medium, and when a cutter is installed in the cutter installation groove, the energy-absorbing medium can be used for absorbing vibration generated by the boring rod body, so that the vibration is prevented from being transmitted to the cutter from the boring rod body, and the cutter is prevented from being damaged. Vibration of the cutter is small, and the machining precision can be improved conveniently in the deep hole machining process; the tool preformed hole is used for mounting a tool and machining a tool mounting groove; the tool locking supporting block is used for being matched with the tool mounting groove to lock the tool, the part gap between the tool and the boring rod body is reduced, and resonance is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of deep hole boring processing, in particular to an energy absorbing and shock absorbing deep hole boring bar. Background Art

[0002] When machining multiple-diameter deep holes, the vibration of the boring tool is caused by the insufficient overall rigidity of the tool. Generally, the vibration is reduced by increasing the rigidity of the solid boring bar. However, simply increasing the rigidity will weaken the shock-absorbing effect of the tool after a certain level, especially when the hole to be machined is deep and the gap between the boring bar and the tool is large. It is easy to resonate with the vibration of the tool itself, thereby affecting the accuracy of deep hole machining. Utility Model Content

[0003] The problem to be solved by the utility model is to provide a deep hole machining boring bar which can absorb vibration energy.

[0004] The technical solution adopted by the utility model to solve the above problems is: an energy absorbing and shock absorbing deep hole boring bar, comprising:

[0005] A boring bar body, wherein the boring bar body is a hollow structure with a cavity formed inside; one end of the boring bar body is penetrated by a tool reserved hole;

[0006] an energy absorbing medium, wherein the energy absorbing medium is filled in the cavity so as to absorb the vibration of the boring bar body; a tool mounting groove for mounting a tool is provided through one end of the energy absorbing medium, and the position of the tool mounting groove corresponds to the tool reserved hole; and

[0007] A tool locking support block, wherein the tool locking support block is fixedly connected to the step at the opening end of the cavity; a through hole is provided in the tool locking support block so that a fastener passes through the small hole to lock the tool.

[0008] Compared with the prior art, the boring bar body of the utility model is a hollow structure, the internal cavity of which can be used to fill energy-absorbing medium. When the tool is installed in the tool mounting groove, the energy-absorbing medium can be used to absorb the vibration generated by the boring bar body, thereby blocking the vibration from being transmitted from the boring bar body to the tool, making the vibration of the tool smaller, which is convenient for improving the processing accuracy in deep hole processing; the tool reserved hole is used for the installation of the tool and the processing of the tool mounting groove; the tool locking support block is used to cooperate with the tool mounting groove to lock the tool, reduce the part gap between the tool and the boring bar body, and avoid the generation of resonance.

[0009] The utility model discloses an energy absorbing and shock absorbing deep hole boring bar, wherein one end of the boring bar body is an open end and the other end is a closed end; the tool reserved hole and the tool installation groove are both arranged at the open end; the energy absorbing medium is poured in from the open end; and the tool locking support block is arranged at the open end.

[0010] The utility model provides an energy absorbing and shock absorbing deep hole boring bar, wherein two ends of the tool locking support block are fixedly connected to the inner wall steps of the cavity by welding.

[0011] The utility model discloses an energy absorbing and shock absorbing deep hole boring bar, wherein the energy absorbing medium is lead, which is poured into a cavity from an open end in liquid state and forms a lead block to fill up the cavity after cooling.

[0012] The utility model discloses an energy absorbing and shock absorbing deep hole boring bar, wherein the plane of the lead block facing the opening end abuts against the tool locking support block.

[0013] The utility model discloses an energy absorbing and shock absorbing deep hole boring bar, wherein the shapes of the tool reserved hole and the tool installation groove are both rectangular.

[0014] The utility model discloses an energy absorbing and shock absorbing deep hole boring bar, wherein a tool handle is arranged at one end of the boring bar body close to the closed end.

[0015] The utility model discloses an energy absorbing and shock absorbing deep hole boring bar, wherein the inner wall of the cavity is provided with multiple internal threads. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a half-section view of the utility model;

[0017] Figure 2 It is a side view of the utility model. DETAILED DESCRIPTION

[0018] Before describing in detail any embodiment of the utility model, it should be understood that the utility model is not limited in its application to the construction and arrangement details of the components described below or illustrated in the following figures. The utility model can have other embodiments and can be practiced or carried out in various ways. In addition, it should be understood that the words and terms used here are for descriptive purposes and should not be considered restrictive. The use of "including" or "having" and its variations herein is intended to cover the items and their equivalents and additional items displayed below. Unless otherwise specified or limited, the terms "install", "connect", "support" and "couple" and their variations are widely used and cover direct installation and indirect installation, connection, support and connection. In addition, "connect" and "couple" are not limited to physical or mechanical connections or connections.

[0019] Furthermore, on the first aspect, in the disclosure of the present invention, the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which 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 orientation, be constructed and operate in a specific orientation, and therefore the above terms cannot be understood as limitations on the present invention; on the second aspect, the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" cannot be understood as a limitation on the quantity.

[0020] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

[0021] The embodiments of the present utility model are further described below in conjunction with the accompanying drawings.

[0022] See also Figure 1-2 A deep hole boring bar with energy absorption and shock absorption comprises a boring bar body 1, an energy absorbing medium 2 and a tool locking support block 3; wherein the boring bar body 1 is a hollow structure and a cavity 11 is formed inside; a tool reserved hole 12 is penetrated at one end of the boring bar body 1; wherein the energy absorbing medium 2 is filled in the cavity 11 so as to absorb the vibration of the boring bar body 1; a tool mounting groove 21 for mounting a tool 5 is penetrated at one end of the energy absorbing medium 2, and the position of the tool mounting groove 21 corresponds to the tool reserved hole 12; wherein the tool locking support block 3 is fixedly connected to the step at the opening end of the cavity 11; a small hole is penetrated in the tool locking support block 3 so that a fastener passes through the small hole to lock the tool.

[0023] In actual use, the boring bar body 1 of the utility model is a hollow structure, and the cavity 11 inside it can be used to fill the energy-absorbing medium 2. When the tool 5 is installed in the tool mounting groove 21, the energy-absorbing medium 2 can be used to absorb the vibration generated by the boring bar body 1, thereby blocking the vibration from being transmitted from the boring bar body 1 to the tool 5, so that the vibration of the tool 5 is smaller, which is convenient for improving the processing accuracy in deep hole processing; the tool reserved hole 12 is used for the installation of the tool and the processing of the tool mounting groove 21; the tool locking support block 3 is used to cooperate with the tool mounting groove 21 to lock the tool, reduce the part gap between the tool 5 and the boring bar body 1, and avoid the generation of resonance.

[0024] Please continue reading Figure 1 , Figure 2 , wherein one end of the boring bar body 1 is an open end and the other end is a closed end; the tool reserved hole 12 and the tool mounting groove 21 are both arranged at the open end; the energy absorbing medium 2 is poured in from the open end; and the tool locking support block 3 is arranged at the open end.

[0025] Under this arrangement, the length of the boring bar body 1 can be fully utilized to achieve a deeper processing depth, and the closed end can be used to seal the energy absorbing medium 2 when it is poured in, so that the energy absorbing medium 2 is in full contact with the side walls and bottom walls of the cavity 11, thereby achieving a better energy absorbing and shock absorbing effect.

[0026] Please continue reading Figure 1 , Figure 2 , wherein both ends of the tool locking support block 3 are fixedly connected to the inner wall steps of the cavity 11 by welding.

[0027] Through the welding process, the tool locking support block 3 is relatively simple to fix, and the fixing effect is better, and the locking effect of the tool 5 is better.

[0028] Please continue reading Figure 1 , Figure 2 Preferably, the energy absorbing medium 2 is lead, and is poured into the cavity 11 from the open end when in liquid state, and forms a lead block to fill the cavity 11 after cooling.

[0029] In the cutting process, vibration is the kinetic energy transfer generated by the mutual excitation between molecules after the molecular structure of hard metal is affected by external force. Metal lead has good energy absorption and shock absorption effect, is easy to be cast, and is different from the material of the boring bar body 1. Therefore, it can better block the kinetic energy transfer between the molecules of the boring bar body 1 and the lead molecules.

[0030] Please continue reading Figure 1 , Figure 2 , wherein the plane of the lead block facing the open end abuts against the tool locking support block 3.

[0031] Under this setting, it is helpful to reduce the parts gap between the lead block and the tool locking support block 3, avoid the gap between the lead block and the cavity 11 increasing and causing vibration after long-term use, and this setting makes the connection between the tool locking support block 3 and the tool 5 tighter.

[0032] Please continue reading Figure 1 , Figure 2 , wherein the shapes of the tool reserved hole 12 and the tool installation groove 21 are both rectangular.

[0033] In this setting, the use of a tool 5 with a rectangular cross-section in conjunction with the tool mounting groove 21 can make the connection between the tool 5 and the tool mounting groove 21 tighter, and the gap between the parts can be compressed smaller, which is beneficial to reducing the generation of resonance.

[0034] Please continue reading Figure 1 , Figure 2 Among them, a tool handle 4 is provided at one end of the boring bar body 1 close to the closed end, which can be connected to a power component so that the boring bar body 1 drives the tool to perform cutting processing.

[0035] Please continue reading Figure 1 , Figure 2 Among them, the inner wall of the cavity 11 is provided with multiple internal threads. During processing, the multiple internal threads are turned out synchronously with the processing of the cavity 11; in the process of energy-absorbing medium 2 being poured into the cavity 11 and solidified, the multiple internal threads can better combine with the inner wall of the cavity 11, thereby increasing the structural strength and energy absorption and shock-absorbing effect.

[0036] The above description is only for the best embodiment of the utility model, but it cannot be understood as a limitation of the claims. The utility model is not limited to the above embodiments, and its specific structure is allowed to be changed. All changes made within the protection scope of the independent claims of the utility model are within the protection scope of the utility model.

Claims

1. An energy absorbing and shock absorbing deep hole boring bar, characterized in that: include: A boring bar body (1), wherein the boring bar body (1) is a hollow structure and a cavity (11) is formed inside; a tool reserved hole (12) is provided through one end of the boring bar body (1); an energy absorbing medium (2), wherein the energy absorbing medium (2) is filled in the cavity (11) so as to absorb the vibration of the boring bar body (1); a tool mounting groove (21) for mounting a tool is provided through one end of the energy absorbing medium (2), and the position of the tool mounting groove (21) corresponds to the tool reserved hole (12); and A tool locking support block (3), wherein the tool locking support block (3) is fixedly connected to the step at the opening end of the cavity (11); a small hole is provided through the tool locking support block (3), so that a fastener can pass through the small hole to lock the tool.

2. The energy-absorbing and shock-absorbing deep hole boring bar according to claim 1 is characterized in that: One end of the boring bar body (1) is an open end, and the other end is a closed end; the tool reserved hole (12) and the tool installation groove (21) are both arranged at the open end; the energy absorbing medium (2) is poured in from the open end; and the tool locking support block (3) is arranged at the open end.

3. The energy-absorbing and shock-absorbing deep hole boring bar according to claim 2 is characterized in that: Both ends of the tool locking support block (3) are fixedly connected to the inner wall steps of the cavity (11) by welding.

4. The energy-absorbing and shock-absorbing deep hole boring bar according to claim 2 is characterized in that: The energy absorbing medium (2) is lead, and is poured into the cavity (11) from the open end when in liquid state, and after cooling, forms a lead block that fills the cavity (11) and forms a whole with the boring bar body (1).

5. The energy-absorbing and shock-absorbing deep hole boring bar according to claim 4 is characterized in that: The flat surface of the lead block facing the open end abuts against the tool locking support block (3).

6. The energy-absorbing and shock-absorbing deep hole boring bar according to claim 1 is characterized in that: The tool reserved hole (12) and the tool installation groove (21) are both rectangular in shape.

7. The energy absorbing and shock absorbing deep hole boring bar according to claim 2, characterized in that: A tool handle (4) is provided at one end of the boring bar body (1) close to the closed end.

8. The energy-absorbing and shock-absorbing deep hole boring bar according to claim 1, characterized in that: The inner wall of the cavity (11) is provided with multiple internal threads.

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