Boring and end face composite cutter block

By combining boring and end-face cutting tools, the problems of chattering during boring and inconsistent end-face angles in oil casing machining are solved, achieving efficient and precise oil casing machining and improving production efficiency and product quality.

CN223762173UActive Publication Date: 2026-01-06SHANDONG YONGLI PRECISION PETROLEUM EQUIP CO LTD
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Patent Information

Application Number
CN202520206848.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-10
Publication Date
2026-01-06
Estimated Expiration
2035-02-10

AI Technical Summary

Technical Problem

In existing oil casing machining, boring is prone to chattering, resulting in ripples, and the machining time is long. Inconsistent end face tool angles lead to uneven cutting, affecting production efficiency and quality.

Method used

Design a boring and end-face composite tool block that combines a boring tool and an end-face tool together, using a dovetail protrusion and a dovetail groove for connection. The boring tool head contacts the inner wall of the oil casing, and the end-face tool head angle is consistent with the end face of the oil casing. A water spray nozzle is used for cooling.

Benefits of technology

It improves machining efficiency, avoids boring ripples, ensures end face cutting quality, reduces tool turret rotation time, and improves product accuracy and production efficiency.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223762173U_ABST
    Figure CN223762173U_ABST
Patent Text Reader

Abstract

The utility model relates to a boring and end face composite cutter block. According to the technical scheme, a connecting block extending upwards is arranged on the right side of a body, the connecting block is movably connected with a dovetail groove in the right side of a boring cutter fixing cutter bar through a dovetail protrusion, a boring cutter head is arranged at the left end of the boring cutter fixing cutter bar, and a boring gap is formed between the boring cutter fixing cutter bar and the upper surface of the body; an end face cutter head is arranged on the left side of the connecting block, a hole boring cutter water spray nozzle and an end face cutter water spray nozzle are arranged on the upper side of the body, the hole boring cutter water spray nozzle extends to one side of the hole boring cutter head, and the end face cutter water spray nozzle extends to one side of the end face cutter head. The utility model has the beneficial effects that the end face cutter and the boring cutter are compounded together, so that the problem that ripples exist in a boring hole due to vibration during processing is avoided, the time for withdrawing a cutter bar and replacing a station is also saved, the processing efficiency of a product can be improved, and meanwhile, the mounting angle of the end face cutter is the same as the required angle of the end face of the oil casing, so that the production efficiency is improved. And the cutting quality of the end face of the oil casing is ensured.
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Description

Technical Field

[0001] This utility model relates to an oil casing processing device, and in particular to a boring and end-face composite tool block. Background Technology

[0002] There are many domestic manufacturers of oil casing and tubing, leading to fierce competition within the industry. Against the backdrop of a slowing global economic recovery and a continued weakening of the global manufacturing sector, oil casing and tubing manufacturers are facing increasing operational pressure. How to improve operational efficiency, enhance development quality, and find new profit growth points through cost reduction and efficiency improvement has become a crucial question for these manufacturers. Increasing production per shift and adopting a low-profit, high-volume sales strategy is a common approach adopted by many companies. Furthermore, when processing special threads on oil casing and tubing, single-station, single-insert-blade processing is generally used, resulting in long processing times and low efficiency, thus failing to effectively reduce production costs. Additionally, the original boring tool has a circular structure, resulting in a large contact area with the inner wall of the oil casing and tubing during processing. Simultaneously, due to the thin tool holder, it is prone to vibration during processing, leading to ripples in the bored holes. Figure 8 Additionally, the angle 'b' of the original end-face tool is inconsistent with the end-face angle of the workpiece, resulting in uneven removal of the allowance during finishing. (Refer to...) Figure 7 . Utility Model Content

[0003] The purpose of this utility model is to address the aforementioned deficiencies in the existing technology by providing a boring and end-face composite tool block that combines an end-face tool and a boring tool together. This avoids vibration during machining, which can lead to ripples in the boring process. It also saves time by removing the tool holder and changing workstations, thereby improving the processing efficiency of the product. At the same time, the installation angle of the end-face tool is the same as the required angle of the end face of the oil casing, ensuring the cutting quality of the end face of the oil casing.

[0004] The technical solution includes a body (1), a boring tool fixing rod (2), a boring tool head (3), an end face tool head (4), a dovetail protrusion (5), a boring tool spray nozzle (6), an end face tool spray nozzle (7), and a dovetail groove (9). The right side of the body (1) is provided with an upwardly extending connecting block (1.1). The connecting block (1.1) is movably connected to the dovetail groove (9) on the right side of the boring tool fixing rod (2) through the dovetail protrusion (5). The left end of the hole tool fixing bar (2) is provided with a boring head (3), and the boring tool fixing bar (2) and the upper surface of the body (1) form a boring gap; the left side of the connecting block (1.1) is provided with an end face tool (4), and the upper side of the body (1) is provided with a boring tool spray nozzle (6) and an end face tool spray nozzle (7). The boring tool spray nozzle (6) extends to the side of the boring head (3), and the end face tool spray nozzle (7) extends to the side of the end face tool (4).

[0005] Preferably, the lower right end of the boring tool fixing bar (2) is provided with a dovetail groove (9), and connecting holes (10) are provided on both sides of the dovetail groove (9), which are fixed to the lower connecting block (1.1) by bolts (8).

[0006] Preferably, the top of the connecting block (1.1) is provided with a dovetail protrusion (5), a first countersunk hole (11) is provided on one side of the dovetail protrusion (5), and a second countersunk hole (12) is provided on the other side of the dovetail protrusion (5).

[0007] Preferably, the length of the first countersunk hole (11) is less than the length of the second countersunk hole (12).

[0008] Preferably, the end face cutter (4) mentioned above is a triangular end face cutter, and the inclination angle of the triangular end face cutter is equal to the required angle of the end face of the oil casing.

[0009] Preferably, the boring head (3) mentioned above adopts a square structure boring tool with a tool tip of 0.8~2.0mm.

[0010] The beneficial effects of this utility model are as follows: This utility model rotates the oil sleeve so that the inner wall of the end of the oil sleeve contacts the boring head for boring. The boring tool's fixed tool shank is connected to the body through a connecting block, which improves the connection strength and avoids the problem of easy vibration during processing, which leads to ripples in the boring, as seen in the prior art. After the boring is completed, the end face of the oil sleeve is brought close to the end face cutting head, and the oil sleeve is rotated again to process the end face of the oil sleeve. This saves the time of turning the tool holder and moving the tool block idling. In addition, the tilt angle of the end face cutting head is the same as the required angle of the end face of the oil sleeve, which avoids the problem of uneven cutting of the allowance during finishing, improves the cutting quality, and improves the processing efficiency of the product. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the lower half of the utility model.

[0013] Figure 3 This is a schematic diagram of the upper part of the utility model.

[0014] Figure 4 This is a schematic diagram of the present invention used for machining end faces and boring holes;

[0015] Figure 5 This is a schematic diagram of the original end face cutter block;

[0016] Figure 6 This is a schematic diagram of the original boring tool block;

[0017] Figure 7 This is a schematic diagram of the original end-face cutting tool block used for machining the end face;

[0018] Figure 8 This is a schematic diagram of the original boring tool block used for boring.

[0019] In the above diagram: 1. Body, 2. Boring cutter fixing rod, 3. Boring cutter head, 4. End face cutter head, 5. Dovetail protrusion, 6. Boring cutter spray nozzle, 7. End face cutter spray nozzle, 8. Bolt, 9. Dovetail groove, 10. Connecting hole, 11. First countersunk hole, 12. Second countersunk hole, 1.1. Connecting block. The end face of the oil casing requires angle a, angle of the original end face cutter b, and tilt angle of the triangular end face cutter c. Detailed Implementation

[0020] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0021] Example 1, referring to Figures 1-4 The present invention discloses a boring and end-face composite tool block, comprising a body 1, a boring tool fixing rod 2, a boring tool head 3, an end-face tool head 4, a dovetail protrusion 5, a boring tool spray nozzle 6, an end-face tool spray nozzle 7, and a dovetail groove 9. A connecting block 1.1 extending upwards is provided on the right side of the body 1. The connecting block 1.1 is movably connected to the dovetail groove 9 on the right side of the boring tool fixing rod 2 via the dovetail protrusion 5. A boring tool head 3 is provided at the left end of the boring tool fixing rod 2, and a boring gap is formed between the boring tool fixing rod 2 and the upper surface of the body 1. An end-face tool head 4 is provided on the left side of the connecting block 1.1. A boring tool spray nozzle 6 and an end-face tool spray nozzle 7 are provided on the upper side of the body 1. The boring tool spray nozzle 6 extends towards the boring tool head 3, and the end-face tool spray nozzle 7 extends towards the end-face tool head 4.

[0022] Among them, the lower right end of the boring tool fixing bar 2 is provided with a dovetail groove 9, and connecting holes 10 are provided on both sides of the dovetail groove 9, which are fixed to the lower connecting block 1.1 by bolts 8.

[0023] The top of the connecting block 1.1 is provided with a dovetail protrusion 5, a first countersunk hole 11 is provided on one side of the dovetail protrusion 5, and a second countersunk hole 12 is provided on the other side of the dovetail protrusion 5.

[0024] The aforementioned end-face cutter head 4 is a triangular end-face cutter, and the inclination angle c of the triangular end-face cutter is equal to the required angle α of the oil casing end face. Figure 4 and Figure 5 .

[0025] The aforementioned boring head 3 is a square-structured boring tool with a tip size of 0.8~2.0mm.

[0026] In use, this invention first rotates the oil sleeve until its inner end contacts the boring head 3 for boring. The boring tool holder 2 is connected to the body 1 via a connecting block 1.1, which improves the connection strength and avoids the problem of easy vibration during machining, which leads to ripples in the boring, as seen in the prior art. After the boring is completed, the end face of the oil sleeve is brought close to the end face cutter 4, and the oil sleeve is rotated while the end face cutter 4 remains stationary to machine the end face of the oil sleeve. This saves the time of turning the tool holder and moving the tool block idling. In addition, the tilt angle of the end face cutter 4 is the same as the required angle of the end face of the oil sleeve, avoiding uneven cutting of the allowance during finishing and improving the cutting quality. This invention has the advantages of high product precision, reduced product defects, saving cutting tools, and increasing production efficiency.

[0027] Example 2: A boring and end-face composite tool block mentioned in this utility model includes a body 1, a boring tool fixing rod 2, a boring tool head 3, an end-face tool head 4, a dovetail protrusion 5, a boring tool spray nozzle 6, an end-face tool spray nozzle 7, and a dovetail groove 9. A connecting block 1.1 extending upwards is provided on the right side of the body 1. The connecting block 1.1 is movably connected to the dovetail groove 9 on the right side of the boring tool fixing rod 2 via the dovetail protrusion 5. A boring tool head 3 is provided at the left end of the boring tool fixing rod 2, and a boring gap is formed between the boring tool fixing rod 2 and the upper surface of the body 1. An end-face tool head 4 is provided on the left side of the connecting block 1.1. A boring tool spray nozzle 6 and an end-face tool spray nozzle 7 are provided on the upper side of the body 1. The boring tool spray nozzle 6 extends towards the boring tool head 3, and the end-face tool spray nozzle 7 extends towards the end-face tool head 4.

[0028] The difference from Example 1 is:

[0029] In this embodiment, the length of the first countersunk hole 11 is less than the length of the second countersunk hole 12. This is because the end face cutter head 4 is installed below the first countersunk hole 11. Therefore, a short bolt is installed at the first countersunk hole 11 and a long bolt is installed at the second countersunk hole 12, which can meet the needs of fixed connection.

[0030] In addition, the boring tool spray nozzle 6 and the end face tool spray nozzle 7 can be connected to a metal extension tube to spray water to cool the boring tool head 3 and the end face tool head 4, according to the needs of the workpiece.

[0031] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art may modify this utility model or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent transformations made based on the technical solutions of this utility model are within the scope of protection claimed by this utility model.

Claims

1. A boring and facing compound tool block, characterized by: The utility model relates to a boring and end face cutting combined tool, including body (1), boring cutter fixed cutter rod (2), boring cutter head (3), end face cutter head (4), dovetail convex (5), boring cutter water nozzle (6), end face cutter water nozzle (7), dovetail groove (9), the right side of body (1) is equipped with the connecting block (1.1) that stretches out to the upwards, connecting block (1.1) is connected with the dovetail groove (9) of boring cutter fixed cutter rod (2) right side through dovetail convex (5) and is movably connected, the left end of boring cutter fixed cutter rod (2) is equipped with boring cutter head (3), and boring cutter fixed cutter rod (2) and the upper surface of body (1) form boring gap, the left side of connecting block (1.1) is equipped with end face cutter head (4), and the upper side of body (1) is equipped with boring cutter water nozzle (6) and end face cutter water nozzle (7), boring cutter water nozzle (6) extends to boring cutter head (3) one side, and end face cutter water nozzle (7) extends to end face cutter head (4) one side.

2. The boring and facing compound tool block according to claim 1, characterized in that: The right end lower side of boring cutter fixed cutter rod (2) is equipped with dovetail groove (9), and connecting hole (10) is equipped with respectively in the both sides of dovetail groove (9), and is fixed with the connecting block (1.1) of lower side through bolt (8).

3. The boring and facing compound tool block according to claim 2, characterized in that: The top of connecting block (1.1) is equipped with dovetail convex (5), and first counterbore (11) is equipped with in the side of dovetail convex (5), and second counterbore (12) is equipped with in the other side of dovetail convex (5).

4. The boring and facing compound tool block according to claim 3, characterized in that: The length of first counterbore (11) is less than the length of second counterbore (12).

5. The boring and facing compound tool block according to claim 4, characterized in that: The end face cutter head (4) adopts triangular end face cutter, and the inclination angle of triangular end face cutter is equal with the end face requirement angle of oil jacket pipe.

6. The boring and facing compound tool block according to claim 4, characterized in that: The boring cutter head (3) adopts square structure boring cutter, and the cutting edge of boring cutter is 0.8~2.0mm.