A boring bar for boring a top pivot support seat

Abstract

This application discloses a boring bar for boring a top pivot support, belonging to the field of boring bars. It includes a boring bar body, a tool holder fixedly mounted at the bottom of the boring bar body, a keyway at the top of the boring bar body, a through groove on the inner wall of the tool holder, a notch on the outer edge of the tool holder, two threaded holes communicating with the notch on the inner wall of the notch, a square groove on the inner wall of the tool holder, one end of a return spring fixedly connected to the inner wall of the square groove, and a moving block fixedly connected to the other end of the return spring. By setting the boring bar body, tool holder, keyway, and through groove, a tool holder fixedly mounted inside the through groove can be fitted to form a dedicated boring bar. Using a boring machine for boring significantly improves processing efficiency, ensures a smooth boring area, guarantees processing accuracy, and avoids the vibration phenomenon that easily occurs during boring when the finished tool holder is too thin.

Description

Technical Field

[0001] This application relates to the field of boring bar technology, and in particular to a boring bar for boring a top pivot support seat. Background Technology

[0002] As an important component of the triangular gate top pivot assembly, the top pivot support seat must be processed strictly according to the drawings. The smoothness of the bore inner diameter is one of the acceptance items, and a boring bar is required during its processing.

[0003] In existing machining processes, the inner diameter of the working surface is often bored using finished cutting tools, which results in low machining efficiency and a relatively rough bore. Furthermore, the thin shank of the finished cutting tool is prone to vibration during the boring process. Therefore, this application proposes a boring bar for boring a top pivot support seat. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides a boring bar for boring a top pivot support seat, which overcomes the shortcomings of the prior art and aims to solve the problems in the background art.

[0005] To achieve the above objectives, this application adopts the following technical solution: a boring bar for boring a top pivot support, comprising a boring bar body, a tool holder fixedly installed at the bottom of the boring bar body, a keyway formed at the top of the boring bar body, a through groove formed on the inner wall of the tool holder, a notch formed on the outer edge of the tool holder, two threaded holes communicating with the notch formed on the inner wall of the notch, a square groove formed on the inner wall of the tool holder, one end of a return spring fixedly connected to the inner wall of the square groove, a moving block fixedly connected to the other end of the return spring, a pin fixedly installed on the side of the moving block away from the return spring, a protective cover installed on the inner wall of the notch, two symmetrical insertion holes formed on the inner wall of the protective cover, and the pins inserted into the inner walls of the insertion holes.

[0006] In a preferred embodiment, a bolt is threaded onto the inner wall of the threaded hole, a washer is provided along the outer edge of the bolt, and a hexagonal hole is formed on the inner wall of the bolt near the washer.

[0007] By adopting the above technical solution, bolts can be used to position the tool bar inserted into the through groove, ensuring that the tool bar can be stably installed inside the through groove.

[0008] In a preferred embodiment, the movable block is slidably connected to the inner wall of the square groove, the inner wall of the notch has a through hole communicating with the inner wall of the square groove, and the pin is slidably connected to the inner wall of the through hole.

[0009] By adopting the above technical solution, the moving block moves downward on the inner wall of the square groove, which in turn drives the pin to move on the inner wall of the through hole, thereby releasing the lock on the protective cover and making it easy to disassemble the protective cover.

[0010] In a preferred embodiment, two docking posts are symmetrically fixedly installed on the inner wall of the protective cover, and both docking posts are inserted into the inner wall of the hexagonal hole.

[0011] By adopting the above technical solution, it can be used to position the protective cover, ensuring the tightness of the protective cover when it is installed inside the notch, and thus ensuring that the protective cover will not shift its position after being installed inside the notch.

[0012] In a preferred embodiment, a paddle is fixedly mounted on the outer side of the movable block.

[0013] By adopting the above technical solution, it is possible for the user to slide the moving block along the inner wall of the square groove, making it easier to apply force with the hand.

[0014] In a preferred embodiment, there are two square slots, two return springs, two moving blocks, two pins, and two paddles, and the two square slots, two return springs, two moving blocks, two pins, and two paddles are symmetrically arranged inside the tool holder, and the two pins are adapted to be inserted into the inner walls of the two pins.

[0015] By adopting the above technical solution, the protective cover can be positioned from two opposite directions, which further ensures the stability of the protective cover when it is installed on the inner wall of the notch. This can then stably protect the bolts, ensuring that impurities do not come into contact with the bolts and thus do not enter the interior of the hexagonal hole and cause blockage.

[0016] The beneficial effects of this application are:

[0017] This boring bar for boring a top pivot support seat, by setting a boring bar body, a tool holder, a keyway and a through groove, can be fitted with a tool holder fixed inside the through groove to form a special boring bar. Using a boring machine for boring, it can greatly improve the processing efficiency, ensure that the boring part is relatively smooth, ensure the processing accuracy, and avoid the phenomenon of vibration that is easy to occur during boring when the finished tool is too thin.

[0018] This boring bar for boring a top pivot support seat has a protective cover installed inside the notch. This allows two mating posts to be inserted into the inner walls of two hexagonal holes. Releasing the lever allows the elastic force of the return spring to push the moving block and the pin back to their original positions. The pin can then be inserted into the inner wall of the insertion hole to position the protective cover, thus protecting the bolt and preventing impurities from contacting the bolt and entering the hexagonal holes to cause blockage. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this application;

[0020] Figure 2 This is a schematic diagram of the unfolded structure of this application;

[0021] Figure 3 This is a schematic diagram of the bolt structure in this application;

[0022] Figure 4 For the purposes of this application Figure 3 Enlarged structural diagram at point A in the middle;

[0023] Figure 5 This is a schematic diagram of the protective cover structure of this application.

[0024] The following are the labels in the diagram: 1. Boring bar body; 2. Tool holder; 3. Keyway; 4. Through groove; 5. Notch; 6. Threaded hole; 7. Washer; 8. Bolt; 9. Hexagonal hole; 10. Square groove; 11. Return spring; 12. Moving block; 13. Pin; 14. Pulley; 15. Protective cover; 16. Connecting post; 17. Insertion hole. Detailed Implementation

[0025] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0026] Reference Figure 1-5 A boring bar for boring a top pivot support includes a boring bar body 1, a tool holder 2 fixedly mounted on the bottom of the boring bar body 1, a keyway 3 on the top of the boring bar body 1, a through groove 4 on the inner wall of the tool holder 2, a notch 5 on the outer edge of the tool holder 2, two threaded holes 6 on the inner wall of the notch 5 communicating with the notch 5, a square groove 10 on the inner wall of the tool holder 2, one end of a return spring 11 fixedly connected to the inner wall of the square groove 10, a moving block 12 fixedly connected to the other end of the return spring 11, a pin 13 fixedly mounted on the side of the moving block 12 away from the return spring 11, a protective cover 15 installed on the inner wall of the notch 5, two symmetrical insertion holes 17 on the inner wall of the protective cover 15, and the pin 13 inserted into the inner wall of the insertion hole 17.

[0027] See Figure 3 A bolt 8 is threaded onto the inner wall of the threaded hole 6. A washer 7 passes through the outer edge of the bolt 8. A hexagonal hole 9 is opened on the inner wall of the bolt 8 near the washer 7, so that the bolt 8 can be used to position the tool bar inserted into the through groove 4, ensuring that the tool bar can be stably installed inside the through groove 4.

[0028] See Figure 4The movable block 12 is slidably connected to the inner wall of the square groove 10. The inner wall of the notch 5 is provided with a through hole that communicates with the inner wall of the square groove 10. The pin 13 is slidably connected to the inner wall of the through hole, so that the movable block 12 moves downward on the inner wall of the square groove 10, thereby driving the pin 13 to move on the inner wall of the through hole, thereby releasing the lock on the protective cover 15, and thus making it easy to disassemble the protective cover 15.

[0029] See Figure 3 and Figure 5 Two docking posts 16 are symmetrically fixedly installed on the inner wall of the protective cover 15. Both docking posts 16 are inserted into the inner wall of the hexagonal hole 9, which can be used to position the protective cover 15, ensuring the tightness of the protective cover 15 when it is installed inside the notch 5, and thus ensuring that the protective cover 15 will not shift its position after being installed inside the notch 5.

[0030] See Figure 4 A lever 14 is fixedly installed on the outer side of the movable block 12, which makes it easy for the user to slide the movable block 12 to move on the inner wall of the square groove 10, making it easier to apply force with the hand.

[0031] See Figure 4 and Figure 5 The square groove 10, the return spring 11, the moving block 12, the pin 13 and the lever 14 are all in pairs. The two square grooves 10, the return spring 11, the moving block 12, the pin 13 and the lever 14 are symmetrically arranged inside the tool holder 2. The two pins 13 are adapted to be inserted into the inner wall of the two pins 13, so that the protective cover 15 can be positioned from two opposite directions. This further ensures the stability of the protective cover 15 when it is installed on the inner wall of the notch 5, and thus can stably protect the bolt 8, ensuring that impurities will not come into contact with the bolt 8 and will not enter the interior of the hexagonal hole 9 and cause blockage.

[0032] Working principle: First, the tool bar can be inserted into the inner wall of the through groove 4. Then, the washer 7 is inserted into the outer edge of the bolt 8. Then, the bolt 8 can be threaded into the threaded hole 6 and the inner wall of the tool bar for positioning the through groove 4. Then, the sliding paddle 14 can be slid to drive the moving block 12 to slide on the inner wall of the square groove 10, which will compress the return spring 11 until the pin 13 is completely retracted to the inner wall of the through hole. Then, the protective cover 15 can be installed into the inside of the notch 5. Then, the two docking posts 16 can be inserted into the inner walls of the two hexagonal holes 9 respectively. Then, the paddle 14 can be released, and the elastic force of the return spring 11 can be used to push the moving block 12 and the pin 13 back to their original positions. Then, the pin 13 can be inserted into the inner wall of the insertion hole 17 for positioning the protective cover 15.

[0033] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present invention. Those skilled in the art can make various modifications and variations to the present invention based on its spirit and principles, and these modifications and variations are also within the scope of the present invention.

Claims

1. A boring bar for boring a top pivot support seat, comprising a boring bar body (1), characterized in that, A tool holder (2) is fixedly installed at the bottom of the boring bar body (1). A keyway (3) is opened at the top of the boring bar body (1). A through groove (4) is opened on the inner wall of the tool holder (2). A notch (5) is opened on the outer edge of the tool holder (2). Two threaded holes (6) are opened on the inner wall of the notch (5) and communicate with the notch (5). A square groove (10) is opened on the inner wall of the tool holder (2). One end of a return spring (11) is fixedly connected to the inner wall of the square groove (10). A moving block (12) is fixedly connected to the other end of the return spring (11). A pin (13) is fixedly installed on the side of the moving block (12) away from the return spring (11). A protective cover (15) is installed on the inner wall of the notch (5). Two insertion holes (17) are symmetrically opened on the inner wall of the protective cover (15). The pin (13) is inserted into the inner wall of the insertion hole (17).

2. A boring bar for boring holes in a top pivot support as described in claim 1, characterized in that, The inner wall of the threaded hole (6) is threaded with a bolt (8), and a washer (7) is provided on the outer edge of the bolt (8). A hexagonal hole (9) is provided on the inner wall of the bolt (8) near the washer (7).

3. A boring bar for boring holes in a top pivot support as described in claim 1, characterized in that, The movable block (12) is slidably connected to the inner wall of the square groove (10), the inner wall of the notch (5) is provided with a through hole that communicates with the inner wall of the square groove (10), and the pin (13) is slidably connected to the inner wall of the through hole.

4. A boring bar for boring holes in a top pivot support as described in claim 1, characterized in that, The inner wall of the protective cover (15) is symmetrically fixed with two docking posts (16), and both docking posts (16) are inserted into the inner wall of the hexagonal hole (9).

5. A boring bar for boring holes in a top pivot support as described in claim 1, characterized in that, A paddle (14) is fixedly installed on the outside of the movable block (12).

6. A boring bar for boring a top pivot support seat according to claim 1, characterized in that, The number of the square slot (10), the reset spring (11), the moving block (12), the pin (13) and the lever (14) are all two, and the two square slots (10), the reset spring (11), the moving block (12), the pin (13) and the lever (14) are symmetrically arranged inside the tool holder (2), and the two pins (13) are adapted to be inserted into the inner wall of the two pins (13).

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