High strength boring tool

Abstract

The utility model relates to the field of machining device discloses a high -strength boring cutter, including installation support and boring cutter base and boring cutter general, the installation support one side upper end face is provided with two dovetail grooves, the boring cutter base includes the base body, the base body lower end face one side fixedly set up two with dovetail groove mortise's protruding piece, boring cutter base one side end face is provided with the incomplete through -hole and boring cutter general sleeve connection in the incomplete through -hole inside, the boring cutter general includes fixed link, blade and the M2 internal hexagonal round head screw of fixed blade use, boring cutter base upper end one side sets up the step and one side is equipped with the shower nozzle. In the utility model, the design adopts simple mechanical structure, and dovetail groove accurate positioning guarantees the integrity of mechanism.

Description

Technical Field

[0001] This utility model relates to the field of machining equipment, and in particular to a high-strength boring tool. Background Technology

[0002] Boring tools are essential and practical devices in machining boring, and boring is also a common machining method in the machining industry, especially in bushing-type parts.

[0003] The existing boring tools have always lacked machining accuracy because the performance of the boring tools has not been well improved, and the eccentric boring causes large mechanical deviations and vibrations, resulting in a short life of the boring tools and difficulties in machining large holes.

[0004] Therefore, those skilled in the art have provided a high-strength boring tool to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-strength boring tool that can meet the needs of daily use when precision is not high. The part has a simple structure, a tight connection, and is easy to process and install. It reduces the vibration of the tool holder during processing, enhances the durability of the boring tool, and extends its service life.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-strength boring tool, comprising a mounting bracket, a boring tool base, and a boring tool assembly. The mounting bracket has two dovetail grooves on one upper side. The boring tool base includes a base body, and two protrusions that mate with the dovetail grooves are fixedly disposed on one side of the lower end face of the base body. A partially through-hole is provided on one end face of the boring tool base, and the boring tool assembly is fitted inside the partially through-hole. The boring tool assembly includes a fixing rod, a cutting blade, and an M2 hexagonal head screw for fixing the cutting blade. A step is provided on one side of the upper end of the boring tool base, and a nozzle is installed on the other side.

[0007] Furthermore, the upper side of the mounting bracket is provided with four mounting threaded holes, and the boring tool base is provided with countersunk grooves on both sides. Screws are installed inside the countersunk grooves and the screws are connected to the mounting threaded holes to restrict the left and right movement of the boring tool base.

[0008] Furthermore, the upper end face of the boring bar base and the boring bar overall sleeve portion are provided with a fixing threaded hole on one side and the vertical side. An M5 set screw is installed inside the fixing threaded hole to ensure that the boring bar is effectively fixed and the lower end of the M5 set screw is embedded in the outer circle surface of its fixing rod.

[0009] Furthermore, a flat surface is opened on one side of the fixing rod, and an installation slot is provided on the flat surface. The upper end face and two sides of the slot are in contact with the lower end face and two sides of the blade and are provided with a round hole with a diameter of 3mm. The upper end face of the slot provided on the flat surface of the fixing rod is provided with an M2 non-through threaded hole that is sleeved with the round hole of the blade. The lower end face of one end of the round head of the M2 internal hexagonal head screw is in contact with the upper end face of the blade and is sleeved with the M2 non-through threaded hole.

[0010] Furthermore, the nozzle is threadedly connected to a non-penetrating threaded hole provided on one side of the step.

[0011] Furthermore, the threaded hole of the water pipe connector at the upper end of the step is connected to the No. 1 non-penetrating threaded hole on one side of the step, wherein the threaded hole of the water pipe connector at the upper end is fitted with a water pipe connector.

[0012] Furthermore, the mounting bracket has symmetrically arranged planes on its outer circle, which facilitates the clamping and installation of machine tool components such as three-jaw chucks.

[0013] Furthermore, two annular grooves are opened at the upper and lower ends of one side of the fixing rod, and rubber rings are installed in the annular grooves.

[0014] This utility model has the following beneficial effects:

[0015] This utility model proposes a high-strength boring tool that adopts an external water cooling system, which meets the daily cutting water cooling requirements and is easy to install. The dovetail groove fixing method ensures that the tightness between parts is not prone to displacement. The screw fixing allows the boring hole size to be modified within a certain range to meet daily needs. The added rubber ring can reduce the stress generated by cutting vibration during processing and reduce the damage to the tool holder and tool head. Attached Figure Description

[0016] Figure 1 This is a lower left view of the present invention;

[0017] Figure 2 This is a top view of the present invention;

[0018] Figure 3 This is a front sectional view of the present invention;

[0019] Figure 4 This is a front view schematic diagram of the present utility model;

[0020] Figure 5 This is a cross-sectional view of the countersunk groove on the right side of this utility model.

[0021] Figure 6 This is a cross-sectional view of the right-side set screw fixing position of this utility model;

[0022] Figure 7 This is a cross-sectional view of the position of the right boring tool blade of this utility model.

[0023] Legend:

[0024] 1. Mounting bracket; 2. Boring tool base; 201. Base; 202. Protrusion; 3. Boring tool assembly; 301. Fixing rod; 302. Blade; 303. M2 socket head cap screw; 4. Nozzle; 5. Rubber ring; 6. Dovetail groove; 7. Water pipe connector threaded hole; 8. Mounting threaded hole; 9. Fixing threaded hole; 10. Step; 11. Countersunk groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figure 2 , Figure 3 The present invention provides an embodiment of a high-strength boring tool, comprising a mounting bracket 1, a boring tool base 2, and a boring tool assembly 3. The mounting bracket 1 has two dovetail grooves 6 on one upper side. The boring tool base 2 includes a base 201. Two protrusions 202 that are mortised into the dovetail grooves 6 are fixedly disposed on one side of the lower end of the base 201. An incomplete through hole is provided on one end of the boring tool base 2, and the boring tool assembly 3 is sleeved inside the incomplete through hole. The boring tool assembly 3 includes a fixing rod 301, a cutting blade 302, and an M2 hexagon socket head cap screw 303 used to fix the cutting blade 302. A step 10 is provided on one side of the upper end of the boring tool base 2, and a nozzle 4 is installed on one side.

[0027] Specifically, both the mounting bracket 1 and the boring bar base 2 are made of standard 45 steel. The boring bar is purchased from an existing model, facilitating production replacement and reducing costs. The dovetail groove 6 connection method ensures simple machining without altering the overall integrity of the mechanism, reducing the problem of large vibration deviations during machining caused by insufficient tightness in the connection of parts.

[0028] Reference Figures 3-5 The mounting bracket 1 has four mounting threaded holes 8 on one side of its upper end. The boring tool base 2 has countersunk grooves 11 on both sides. Screws are installed inside the countersunk grooves 11 and are connected to the mounting threaded holes 8 to restrict the left and right movement of the boring tool base 2.

[0029] Specifically, a screw is installed inside the countersunk groove 11, and the screw is connected to the mounting threaded hole 8 to restrict the left and right movement of the boring tool base 2. This facilitates the adjustment of the relative position of the boring tool base 2 and the mounting bracket 1. After the boring tool base 2 and the boring tool assembly 3 are installed, they form a whole, thereby enabling the boring diameter to be adjusted within a certain range as needed.

[0030] Reference Figure 6 The upper end face of the boring tool base 2 and the boring tool body 3 are provided with a fixing threaded hole 9 on one side and the vertical side. An M5 set screw is installed inside the fixing threaded hole 9 to ensure that the boring tool body 3 is effectively fixed, and the lower end of the M5 set screw is embedded in the outer circle surface of its fixing rod 301.

[0031] Specifically, the boring bar assembly 3 adopts a common fixed shaft type of part to ensure easy replacement, which to a certain extent reduces the problem of misalignment of the shaft center after the boring bar assembly 3 and the boring bar base 2 are installed, and ensures that the boring depth is adjustable within a certain range to meet the machining needs.

[0032] Reference Figure 2 , Figures 3-6 The fixing rod 301 has a flat surface on one side with an installation slot. The upper end face and two sides of the slot are in contact with the lower end face and two sides of the blade 302 and have a round hole with a diameter of 3mm. The upper end face of the slot on the flat surface of the fixing rod 301 has an M2 non-through threaded hole that fits into the round hole of the blade 302. The lower end face of one end of the round head of the M2 internal hexagonal head screw 303 is in contact with the upper end face of the blade 302 and fits into the M2 non-through threaded hole.

[0033] Specifically, the slot contact restricts the degree of freedom of the blade 302 in the direction of rotation, ensuring that the angle does not change and that the M2 hex socket head cap screw 303 does not loosen. The M2 hex socket head cap screw 303 restricts the degree of freedom of the blade 302 in the vertical direction, ensuring that its vertical position does not change.

[0034] Reference Figure 3 The nozzle 4 is connected to the non-penetrating threaded hole on one side of the step 10.

[0035] Specifically, the nozzle 4 is made of 304 stainless steel, which ensures that the parts are not affected by water or other coolants and thus do not rust. The outlet position of the nozzle 4 can be adjusted as needed to adjust the threaded connection depth to meet daily processing requirements.

[0036] Reference Figure 3 The threaded hole 7 of the water pipe connector at the upper end of the step 10 is connected to the non-penetrating threaded hole on one side of the step 10. The threaded hole 7 of the water pipe connector at the upper end is fitted with a water pipe connector.

[0037] Specifically, after the water pipe connector and nozzle 4 are connected to the mounting hole, they become a whole with the boring tool base 2, ensuring the complete installation and fixation of the water pipe and guaranteeing that its position will not change.

[0038] Reference Figure 3 The mounting bracket 1 has symmetrically arranged planes on its outer circle, which facilitates the clamping and installation of machine tool components such as three-jaw chucks.

[0039] Specifically, the mounting bracket 1 has symmetrically arranged planes on its outer circle. During installation, the rotation of the parts is restricted by fixing the two planes, ensuring that the mounting bracket 1 does not rotate during the clamping process of the three-jaw chuck or other clamping devices.

[0040] Reference Figure 3 Two annular grooves are opened at the top and bottom of one side of the fixing rod 301, and a rubber ring 5 is installed in the annular groove.

[0041] Specifically, the rubber ring 5 is sleeved with the annular groove of the fixing rod 301. When vibration occurs during processing, it can absorb vibration to a certain extent, reduce the impact on the fixing rod 301 and the blade 302, and extend the service life.

[0042] Working principle: The boring tool 3 is fitted into the partially through hole of the boring tool base 2 and fixed with set screws. After installation, the boring tool base 2 and the mounting bracket 1 are slidably connected on the dovetail groove 6, and the position is fixed by bolt threaded connection between the countersunk groove 11 on the boring tool base 2 and the four threaded holes on the mounting bracket 1. The boring hole size can be changed by adjusting the left and right position of the boring tool base 2, and the boring hole depth can be adjusted by changing the depth of the fixing rod 301. The nozzle 4 installed on the boring tool base 2 can change the position of spraying water or other coolant by changing the threaded connection depth.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-strength boring tool, comprising a mounting bracket (1), a boring tool base (2), and a boring tool assembly (3), characterized in that: The mounting bracket (1) has two dovetail grooves (6) on one side of its upper end face. The boring tool base (2) includes a base (201). Two protrusions (202) that are mortised into the dovetail grooves (6) are fixedly installed on one side of the lower end face of the base (201). An incomplete through hole is opened on one side of the boring tool base (2) and the boring tool assembly (3) is fitted inside the incomplete through hole. The boring tool assembly (3) includes a fixing rod (301), a cutting tool (302), and an M2 hexagonal head screw (303) used to fix the cutting tool (302). A step (10) is provided on one side of the upper end of the boring tool base (2) and a nozzle (4) is installed on one side.

2. The high-strength boring tool according to claim 1, characterized in that: The mounting bracket (1) has four mounting threaded holes (8) on one side of its upper end. The boring tool base (2) has countersunk grooves (11) on both sides. Screws are installed inside the countersunk grooves (11) and the screws are connected to the mounting threaded holes (8) to restrict the left and right movement of the boring tool base (2).

3. A high-strength boring tool according to claim 1, characterized in that: The upper end face of the boring bar base (2) and the boring bar body (3) are provided with a fixed threaded hole (9) on one side and the vertical side. An M5 set screw is installed inside the fixed threaded hole (9) to ensure that the boring bar body (3) is effectively fixed and the lower end of the M5 set screw is embedded in the outer circle of its fixing rod (301).

4. A high-strength boring tool according to claim 1, characterized in that: The fixing rod (301) has a flat surface on one side and an installation slot on the flat surface. The upper end face and two sides of the slot are in contact with the lower end face and two sides of the blade (302) and are provided with a round hole with a diameter of 3mm. The upper end face of the slot on the flat surface of the fixing rod (301) is provided with an M2 non-through threaded hole that is sleeved with the round hole of the blade (302). The lower end face of one end of the round head of the M2 internal hexagonal head screw (303) is in contact with the upper end face of the blade (302) and is sleeved with the M2 non-through threaded hole.

5. A high-strength boring tool according to claim 1, characterized in that: The nozzle (4) is threaded into a non-penetrating threaded hole on one side of the step (10).

6. A high-strength boring tool according to claim 1, characterized in that: The water pipe connector threaded hole (7) provided at the upper end of the step (10) is connected to the non-penetrating threaded hole provided on one side of the step (10), wherein the water pipe connector threaded hole (7) provided at the upper end is fitted with a water pipe connector.

7. A high-strength boring tool according to claim 1, characterized in that: The mounting bracket (1) has a symmetrically arranged plane on its outer circle, which facilitates the clamping and installation of the three-jaw chuck.

8. A high-strength boring tool according to claim 1, characterized in that: Two annular grooves are opened at the upper and lower ends of one side of the fixing rod (301), and a rubber ring (5) is installed in the annular groove.

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