Adjustable boring cutter bar

Abstract

The utility model relates to the technical field of boring cutter bars, and discloses an adjustable boring cutter bar which comprises a boring cutter bar body, one end of the boring cutter bar body is of an integrated structure and provided with a connecting lock head, a fixing rod is installed in the connecting lock head, an installation head is fixed to one end of the fixing rod, and a boring cutter is fixed to the interior of the installation head. A fixing ring sleeve is detachably installed on the outer wall of the connecting lock head and composed of a first connecting ring and a second connecting ring. The positioning head is matched with the precise thread pair of the thread connecting groove, so that the axial positioning and fastening of the fixing rod and the connecting lock head are realized. A linear guide rail pair is formed by a sliding block of a fixed ring sleeve and a sliding way, the radial adjusting function is achieved through a detachable combined structure, and the requirements of different hole diameters and machining technologies can be flexibly met. During assembly, uniform radial constraining force can be formed between the connecting ring I and the connecting ring II through a bolt pre-tightening mechanism of the fixing block, so that radial run-out in the boring process is effectively inhibited, and the dynamic stability of a machining system is guaranteed.

Description

Technical Field

[0001] This application relates to the field of boring bar technology, and in particular to an adjustable boring bar. Background Technology

[0002] The existing boring bar structure is relatively fixed, making it inconvenient to adjust the boring bar position and difficult to quickly adapt to the machining requirements of workpieces of different sizes and shapes. When machining holes of different specifications, it is often necessary to replace the entire boring bar, which increases machining costs and equipment downtime, and reduces production efficiency.

[0003] During boring, impurities such as cutting fluid and metal shavings can easily enter the connection parts of the boring bar, causing wear and corrosion to the internal threads and positioning structure, affecting the service life and machining stability of the boring bar. It is also difficult to withstand the effects of harsh machining environments, increasing equipment maintenance costs and the risk of failure.

[0004] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content

[0005] To address the issues of fixed boring bar structures, inconvenient boring bar position adjustment, and difficulty in quickly adapting to the machining requirements of workpieces of different sizes and shapes, and the fact that different hole diameters often require replacing the entire boring bar, increasing machining costs and equipment downtime, and reducing production efficiency, this application provides an adjustable boring bar.

[0006] The adjustable boring bar provided in this application adopts the following technical solution:

[0007] An adjustable boring bar includes a boring bar, one end of which is integrally provided with a connecting lock head. A fixing rod is installed inside the connecting lock head, and an installation head is fixed to one end of the fixing rod. A boring bar is fixed inside the installation head. A fixing ring is detachably installed on the outer wall of the connecting lock head. The fixing ring is composed of a first connecting ring and a second connecting ring.

[0008] Preferably, the outer wall of the connecting lock head is provided with several through grooves at equal intervals along the circumference, and the interior of the connecting lock head is provided with a positioning groove.

[0009] Preferably, the inner wall of the positioning groove is provided with a threaded connection groove, and one end of the fixing rod is integrally fixed with a positioning head that is adapted to the threaded connection groove.

[0010] Preferably, the outer wall of the boring bar is provided with a set of slides at equal intervals along the circumference, and the slides are connected to the connecting lock head.

[0011] Preferably, both ends of the connecting ring one and the connecting ring two are fixed with fixing blocks, the two fixing blocks are connected by screws, and the inner walls of the connecting ring one and the connecting ring two are bonded with sealing rings.

[0012] Preferably, the inner walls of the first connecting ring and the second connecting ring are provided with a set of sliders that are adapted to the slide rails and are equidistantly distributed.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] This application achieves axial positioning and fastening of the fixed rod and connecting lock head through the precision threaded pair of the positioning head and the threaded connecting groove. A linear guide pair is formed by the slider and slide rail of the fixed ring sleeve, and radial adjustment is achieved through a detachable assembly structure, flexibly adapting to different hole diameters and machining process requirements. During assembly, the bolt pre-tightening mechanism of the fixed block forms a uniform radial constraint force between connecting ring one and connecting ring two, effectively suppressing radial runout during boring and ensuring the dynamic stability of the machining system. Furthermore, the sealing ring adopts a lip seal structure design, constructing a complete sealing barrier between the fixed ring sleeve and the connecting lock head. Attached Figure Description

[0015] Figure 1 This is a front view of an adjustable boring bar according to an embodiment of the application.

[0016] Figure 2 This is an exploded view of an adjustable boring bar according to an embodiment of the application.

[0017] Figure 3 This is a schematic diagram of the structure of the fixing ring sleeve in the embodiment of the application.

[0018] Explanation of reference numerals in the attached drawings: 1. Boring tool bar; 2. Connecting lock head; 3. Fixing ring; 4. Mounting head; 5. Boring tool; 6. Fixing rod; 7. Positioning head; 8. Positioning groove; 9. Through groove; 10. Threaded connection groove; 11. Slide rail; 12. Connecting ring one; 13. Connecting ring two; 14. Sliding block; 15. Fixing block; 16. Sealing ring. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0020] This application discloses an adjustable boring bar. (See also...) Figures 1-2The assembly includes a boring bar 1, one end of which is integrally formed with a connecting lock head 2. A set of slides 11 are equidistantly spaced along the circumference of the outer wall of the boring bar 1, communicating with the connecting lock head 2. Several through slots 9 are equidistantly spaced along the circumference of the outer wall of the connecting lock head 2. A positioning groove 8 is formed inside the connecting lock head 2, and a fixing rod 6 is installed inside. A threaded connection groove 10 is provided on the inner wall of the positioning groove 8. A positioning head 7, adapted to the threaded connection groove 10, is integrally fixed to one end of the fixing rod 6. An installation head 4 is fixed to the other end of the fixing rod 6, and a boring bar 5 is fixed inside the installation head 4. Through the threaded fit between the positioning head 7 and the threaded connection groove 10, the fixing rod 6 can be quickly and securely installed in the connecting lock head 2, thus achieving the initial installation of the boring bar 5. The operation is simple, the positioning is precise, effectively reducing installation time, improving work efficiency, and ensuring that the boring bar 5 is not easily loosened after installation, thus ensuring machining accuracy.

[0021] like Figure 3 As shown, a fixing ring 3 is detachably installed on the outer wall of the connecting lock head 2. The fixing ring 3 consists of a first connecting ring 12 and a second connecting ring 13. A set of sliders 14, which are adapted to the slide rail 11, are equidistantly distributed on the inner walls of the first connecting ring 12 and the second connecting ring 13. The fixing ring 3, composed of the first connecting ring 12 and the second connecting ring 13, can flexibly adjust its position on the outer wall of the connecting lock head 2 through the sliding engagement of the sliders 14 and the slide rail 11, meeting different boring machining requirements. When the fixing blocks 15 at both ends are fixed with screws, the fixing ring 3 can form a stable constraint on the connecting lock head 2, preventing the boring tool 5 from shifting during boring, and ensuring the stability and reliability of the machining process.

[0022] In this application, fixing blocks 15 are fixed to the outer walls of both ends of connecting ring 12 and connecting ring 13. The two fixing blocks 15 are connected by screws. Sealing rings 16 are glued to the inner walls of connecting ring 12 and connecting ring 13. After being fixed, the sealing rings 16 fit tightly against the connecting lock head 2 to form a sealing structure, which can effectively prevent external impurities such as cutting fluid and metal chips from entering the interior of the connecting lock head 2. This avoids impurities from causing wear or corrosion to components such as the threaded connecting groove 10 and the positioning head 7, extends the service life of each component of the boring bar 1, and reduces equipment failures caused by impurities entering, ensuring the smooth progress of boring operations.

[0023] The implementation principle of an adjustable boring bar in this application embodiment is as follows:

[0024] First, align the positioning head 7 with the positioning groove 8 inside the connecting lock head 2. By rotating the fixing rod 6, the positioning head 7 is threadedly fitted with the threaded connecting groove 10, thus installing the fixing rod 6 inside the connecting lock head 2. Since one end of the fixing rod 6 is fixed with the mounting head 4, and the mounting head 4 is fixed with the boring tool 5, the initial installation of the boring tool 5 on the connecting lock head 2 is achieved through the installation of the fixing rod 6. Next, push the fixing ring sleeve 3, and the slider 14 slides along the slide rail 11 closer to the connecting lock head 2. Then, the fixing blocks 15 at both ends are connected by screws, fixing the connecting ring one 12 and the connecting ring two 13 together to form a complete fixing ring sleeve 3. At this time, the fixing ring sleeve 3 is positioned on the outer wall of the connecting lock head 2 through the cooperation of the slider 14 and the slide rail 11, while the sealing ring 16 on the inner wall plays a sealing role to prevent external impurities from entering the interior of the connecting lock head 2. During boring, the boring bar 1 is fitted with the boring tool 5 at one end via the connecting lock head 2 and fixed in position via the fixing ring 3, which facilitates the installation of the boring bar 1 on machine tools and other equipment.

[0025] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0026] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0027] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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.

[0028] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An adjustable boring bar, comprising a boring bar (1), characterized in that: One end of the boring bar (1) is integrally provided with a connecting lock head (2). A fixing rod (6) is installed inside the connecting lock head (2). An installation head (4) is fixed at one end of the fixing rod (6). A boring bar (5) is fixed inside the installation head (4). A fixing ring sleeve (3) is detachably installed on the outer wall of the connecting lock head (2). The fixing ring sleeve (3) is composed of a connecting ring one (12) and a connecting ring two (13).

2. The adjustable boring bar according to claim 1, characterized in that: The outer wall of the connecting lock head (2) is provided with several through grooves (9) at equal intervals along the circumference, and the interior of the connecting lock head (2) is provided with a positioning groove (8).

3. An adjustable boring bar according to claim 2, characterized in that: The inner wall of the positioning groove (8) is provided with a threaded connection groove (10), and one end of the fixing rod (6) is integrally fixed with a positioning head (7) that is adapted to the threaded connection groove (10).

4. An adjustable boring bar according to claim 1, characterized in that: The outer wall of the boring bar (1) is provided with a set of slides (11) at equal intervals along the circumference, and the slides (11) are connected to the connecting lock (2).

5. An adjustable boring bar according to claim 1, characterized in that: Both ends of the connecting ring one (12) and the connecting ring two (13) are fixed with fixing blocks (15), and the two fixing blocks (15) are connected by screws. The inner walls of the connecting ring one (12) and the connecting ring two (13) are both attached with sealing rings (16).

6. An adjustable boring bar according to claim 4, characterized in that: The inner walls of the connecting ring one (12) and the connecting ring two (13) are equidistantly distributed with a set of sliders (14) that are adapted to the slide rail (11).

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