A double-edge boring tool

Abstract

The utility model discloses a double edge boring cutter, including boring cutter body and two boring cutters, the front of boring cutter body is equipped with the mounting groove, is used to accommodate two boring cutters, and two boring cutters reverse parallel arrangement, the two ends of boring cutter head part are equipped with the export respectively on the mounting groove, and the export width is equal to boring cutter's handle width, and the head of boring cutter is stretched out, makes boring cutter to be able to adjust the position along the mounting groove freely, the waist type hole is equipped with on boring cutter and is close to its head one end, and the mounting groove bottom is equipped with a plurality of with the waist type hole matched mounting screw hole, and boring cutter is fixedly arranged in the mounting groove through fixed bolt. The design optimized boring cutter and boring cutter body's fixed mode and the structure of mounting groove, and boring cutter and boring cutter body adopt the front bolt fixed, cooperate the mounting groove opening design to make boring cutter's stability stronger, can be used for more accurate equipment manufacturing.

Description

Technical Field

[0001] This utility model relates to the field of machining tools, and in particular to the design of a double-edged boring tool. Background Technology

[0002] Primarily used for precision machining of holes, including reaming and contouring. Boring tools can rough, semi-finish, or finish existing holes, ensuring dimensional accuracy and surface finish. With technological advancements, the requirements for machining precision are increasing. Existing boring tool designs have flaws in their fixing methods, resulting in poor stability and unsuitability for high-precision manufacturing. Furthermore, the current method of connecting the boring tool to the tool body limits its adjustment range, making it unsuitable for manufacturing various product models. For example, the existing patent CN103357908B, an adjustable double-edged boring tool, suffers from a fixing method that prevents a stable connection between the tool and the tool body. Additionally, the design and installation method of its fine-tuning screw significantly impacts the working radius of the boring tool. Summary of the Invention

[0003] The problem to be solved by this utility model is to propose an improvement or replacement scheme to address the shortcomings of the prior art, especially an improvement or replacement scheme to improve the stability and working radius of the boring tool.

[0004] To solve the above problems, the present invention adopts the following solution: a double-edged boring bar, comprising a boring bar body and two boring bars, characterized in that the front of the boring bar body is provided with a mounting groove, the width of which is equal to the width of the handles of the two boring bars, the mounting groove is used to accommodate the two boring bars, and the two boring bars are arranged in opposite parallel directions; the mounting groove is provided with outlets at both ends corresponding to the heads of the boring bars, and the width of the outlets is equal to the width of the handles of the boring bars, allowing the heads of the boring bars to extend out, so that the boring bars can be freely adjusted in position along the mounting groove; the boring bars are provided with a waist-shaped hole near one end of their heads, and the bottom of the mounting groove is provided with multiple mounting threaded holes that match the waist-shaped hole, and the boring bars are fixedly installed in the mounting groove by fixing bolts.

[0005] Furthermore, the double-edged boring bar is characterized in that the mounting groove has adjustment holes at both ends corresponding to the tail of the boring bar, and an adjustment screw is inserted into the adjustment hole; the tail of the boring bar has an adjustment internal thread hole that matches the adjustment screw; the adjustment screw is threadedly connected to the boring bar.

[0006] Furthermore, the double-edged boring bar is characterized in that the waist-shaped hole on the boring bar has an inner stepped structure for accommodating fixing bolts.

[0007] Furthermore, the double-edged boring bar is characterized in that each of the fixing bolts is equipped with an open spring washer.

[0008] Furthermore, the double-edged boring tool is characterized in that a positioning groove is provided on the back of the boring tool body; a fixing threaded hole is provided around the positioning groove; and the tool body is fixedly connected to the transmission assembly through the positioning groove and the fixing threaded hole.

[0009] The technical advantages of this invention are as follows: The double-edged boring bar of this design features a redesigned boring bar body. The mounting groove is no longer an open structure, but a relatively closed one. The boring bar is left and right restricted by the outlet and the mounting groove itself, and a front-mounted fixing method is used, thereby providing stability for the boring bar.

[0010] The adjusting screw is connected to the boring bar by a thread, which enables the adjustment of the boring bar. At the same time, the adjusting screw is hidden so that it no longer protrudes and affects the working radius of the boring bar. It can also fix the boring bar itself and further enhance the stability of the boring bar.

[0011] The waist-shaped hole on the boring bar shank has an internal stepped structure, which can well accommodate the fixing bolt and prevent it from protruding. The fixing bolt uses an open spring washer, which can assist the adjusting screw in adjusting the boring bar.

[0012] The locating groove on the back of the boring bar is used to insert the transmission component. The shape of the locating groove can be circular or rectangular, depending on the needs. It works in conjunction with the surrounding threaded holes to achieve a stable connection with the transmission component. Compared to a direct threaded connection, the addition of the locating groove can distribute most of the pressure, resulting in higher stability and connection strength. Attached Figure Description

[0013] Figure 1 This is a front view of a double-edged boring bar.

[0014] Figure 2 This is a schematic diagram of a boring tool.

[0015] Figure 3 This is a schematic diagram of the back of a double-edged boring bar.

[0016] Figure 4 This is a schematic diagram of the boring bar structure.

[0017] Among them, 1 is the boring bar body, 2 is the boring bar, 21 is the waist-shaped hole, 22 is the fixing bolt, 23 is the adjusting screw, 24 is the adjusting internal thread hole, 11 is the positioning groove, 12 is the fixing thread hole, 13 is the mounting groove, 14 is the outlet, and 15 is the mounting thread hole. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings. Example

[0019] like Figures 1-4As shown, a double-edged boring bar includes a boring bar body and two boring bars. The front of the boring bar body has a mounting groove, the width of which is equal to the width of the handles of the two boring bars. The mounting groove is used to accommodate the two boring bars, which are arranged in opposite parallel directions. The mounting groove has outlets at both ends corresponding to the heads of the boring bars, and the width of the outlets is equal to the width of the handles of the boring bars, allowing the heads of the boring bars to extend out and enabling the boring bars to freely adjust their position along the mounting groove. The boring bars have a waist-shaped hole near one end of their heads, and the bottom of the mounting groove has multiple mounting threaded holes that match the waist-shaped hole. The boring bars are fixedly mounted in the mounting groove by fixing bolts.

[0020] The mounting slot has adjustment holes at both ends corresponding to the tail of the boring bar, and adjustment screws are inserted into these holes. The tail of the boring bar has an internal threaded hole that matches the adjustment screw. The adjustment screw is threadedly connected to the boring bar. The waist-shaped hole on the boring bar has an internal stepped structure to accommodate fixing bolts. Each fixing bolt is equipped with an open spring washer. The back of the boring bar body has a positioning groove; the positioning groove is surrounded by fixing threaded holes; the boring bar body is fixedly connected to the transmission assembly through the positioning groove and the fixing threaded holes.

[0021] In use, insert both boring tools into their respective mounting slots through the outlets on the mounting slots and initially secure them with fixing bolts. Then, insert the adjusting screw into the adjusting hole and connect it to the boring tool's threaded connection. Continuously rotate the adjusting screw until the boring tool reaches the designated position, thus adjusting the boring tool's working radius. A scale marked on the boring tool body can help with quick adjustments. After adjustment, tighten the fixing bolts to complete the boring tool installation. Then, securely connect the double-edged boring tool to the transmission assembly, and it is ready for operation.

Claims

1. A double-edged boring bar, comprising a boring bar body and two boring bars, characterized in that, The front of the boring bar body is provided with a mounting groove, the width of which is equal to the width of the handles of two boring bars. The mounting groove is used to accommodate two boring bars, which are arranged in opposite parallel directions. The mounting groove has outlets at both ends corresponding to the heads of the boring bars, and the width of the outlets is equal to the width of the handles of the boring bars, allowing the heads of the boring bars to extend out and enabling the boring bars to be freely adjusted in position along the mounting groove. The boring bar has a waist-shaped hole near its head end, and the bottom of the mounting groove has multiple mounting threaded holes that match the waist-shaped hole. The boring bar is fixed in the mounting groove by fixing bolts.

2. The double-edged boring tool according to claim 1, characterized in that, The mounting groove has adjustment holes at both ends corresponding to the tail of the boring bar, and an adjustment screw is inserted into the adjustment hole; the tail of the boring bar has an adjustment internal thread hole that matches the adjustment screw; the adjustment screw is threadedly connected to the boring bar.

3. The double-edged boring tool according to claim 1, characterized in that, The waist-shaped hole on the boring bar has an inner stepped structure, which is used to accommodate the fixing bolt.

4. The double-edged boring tool according to claim 1, characterized in that, Each of the aforementioned fixing bolts is equipped with an open spring washer.

5. The double-edged boring tool according to claim 1, characterized in that, The back of the boring bar is provided with a positioning groove; the positioning groove is provided with fixing threaded holes around its perimeter; the boring bar is fixedly connected to the transmission assembly through the positioning groove and the fixing threaded holes.

Images