High-precision boring machine tool bit for machining oil cylinder barrel

Abstract

The utility model relates to the technical field of boring machine tool bits, in particular to a high-precision boring machine tool bit for machining an oil cylinder barrel, which comprises a tool bit, an inserting rod is arranged at one end of the tool bit, the inserting rod is movably inserted into an inserting groove, the inserting groove is arranged on the surface of a tool bar, a limiting block mounting groove is arranged on the surface of the inserting rod, and a limiting block is arranged in the limiting block mounting groove. Limiting blocks are movably inserted into the limiting block mounting grooves, limiting springs are fixed to the ends, extending into the limiting block mounting grooves, of the limiting blocks, the other ends of the limiting springs are fixed to the inner walls of the limiting block mounting grooves, the other ends of the limiting blocks are movably inserted into limiting grooves, and the limiting grooves are formed in the inner walls of the inserting grooves; the tool bit has the beneficial effects that force for driving the insertion rod to rotate is decomposed on the surfaces of the insertion rod and the limiting block, abrasion of the limiting block is reduced, insertion between the insertion rod and the insertion groove cannot be affected even if the limiting block is abraded under rotation of the insertion rod, and then installation of the tool bit and the tool bar cannot be affected.

Description

Technical Field

[0001] The utility model relates to the technical field of boring machine tool heads, in particular to a high-precision boring machine tool head used for machining oil cylinder barrels. Background Art

[0002] The inner wall of the oil cylinder barrel has extremely high requirements for surface smoothness. Therefore, after completing the drilling of the oil cylinder barrel, a boring machine is often used to finish the inner wall of the oil cylinder barrel. A boring machine is a machine tool that mainly uses a boring tool to bore the prefabricated holes of the workpiece.

[0003] In the prior art, the boring tool is divided into two parts, a cutter head and a cutter rod. The cutter head and the cutter rod are installed in a manner that a plug-in rod is usually provided at one end of the cutter head, and a plug-in slot is provided at one end of the cutter rod. The plug-in rod of the cutter head is plugged into the plug-in slot of the cutter rod. Screw holes are provided on the side of the plug-in rod and the corresponding part of the cutter rod. By screwing the screws in the screw holes, on the one hand, the plug-in rod can be limited in the plug-in slot, and on the other hand, the plug-in rod can be rotated with the cutter rod and then the cutter head can be rotated with the cutter rod. This installation method has a simple structure and low cost.

[0004] However, in the prior art, in the installation method of the cutter head and the cutter rod, the plug-in rod is a round rod, and the plug-in slot is also a round slot. Therefore, when the cutter rod rotates, the only connecting part that drives the plug-in rod to rotate with the cutter rod is the screw. This causes the screw to be subjected to a large radial force. This radial force will cause extrusion between the screw and the screw hole, thereby accelerating the wear of the thread. When the thread is worn to a certain extent, it will cause the thread to fail, making the connection between the plug-in rod and the plug-in slot not stable enough, and then making the installation between the cutter head and the cutter rod not stable enough. Utility Model Content

[0005] The utility model aims to provide a high-precision boring machine tool head for machining oil cylinder barrels, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-precision boring machine tool head for oil cylinder barrel processing, comprising: a tool head, a plug-in rod is provided at one end of the tool head, the plug-in rod is movably plugged into the plug-in groove, the plug-in groove is arranged on the surface of the tool rod, a limit block mounting groove is arranged on the surface of the plug-in rod, a limit block is movably plugged into the limit block mounting groove, a limit spring is fixed at one end of the limit block extending into the limit block mounting groove, the other end of the limit spring is fixed on the inner wall of the limit block mounting groove, the other end of the limit block is movably plugged into the limit groove, and the limit groove is arranged on the inner wall of the plug-in groove.

[0007] Preferably, the plug-in rod is in a rectangular rod-shaped structure, the plug-in slot is in a rectangular slot body structure, and the plug-in slot matches the plug-in rod.

[0008] Preferably, the limiting groove is in the form of a rectangular groove, and the portion of the limiting block extending into the limiting groove is provided with an inclined surface.

[0009] Preferably, a connecting rod hole is opened on the surface of the knife rod, the connecting rod hole is connected with the limiting groove, the connecting rod hole is a rectangular hole, the side length of the connecting rod hole is smaller than the side length of the limiting groove, a connecting rod is movably inserted in the connecting rod hole, a push plate is fixed at one end of the connecting rod, the push plate is slidably connected in the limiting groove, and a brake plate is fixed at the other end of the connecting rod.

[0010] Preferably, the push plate and the brake plate are both rectangular plate structures, and the sizes of the push plate and the brake plate are both larger than the opening size of the connecting rod hole.

[0011] Preferably, an elastic gasket and a positioning rod are fixed to one end of the cutter head, and the other end of the elastic gasket rests on the surface of the cutter rod.

[0012] Preferably, the positioning rods are provided with two groups, the two groups of positioning rods are symmetrically distributed about the plug-in rod, the positioning rods are round rod structures, the two groups of positioning rods are movably plugged into two groups of positioning grooves respectively, and the two groups of positioning grooves are both opened on one end surface of the knife rod.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The high-precision boring machine tool head for oil cylinder barrel processing proposed by the utility model changes the plug-in rod into a rectangular rod, the plug-in groove into a rectangular groove body, and the connecting piece between the plug-in rod and the tool rod into a rectangular limit block. When the tool rod rotates, the plug-in rod can be led to rotate along with the tool rod under the cooperation of the plug-in rod and the plug-in groove, and the plug-in rod can also be made to rotate along with the tool rod under the cooperation of the limit block and the limit groove. Therefore, the force used to drive the plug-in rod to rotate is decomposed on the surfaces of the plug-in rod and the limit block, reducing the wear of the limit block. The wear of the limit block occurs in the radial direction of the plug-in rod, and the plugging between the plug-in rod and the plug-in groove relies on the contact surface between the limit block and the limit groove along the radial direction of the plug-in rod. Therefore, even if the limit block is worn under the rotation of the plug-in rod, it will not affect the plugging between the plug-in rod and the plug-in groove, and further will not affect the installation of the tool head and the tool rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 3 for Figure 2 A schematic diagram of the structure enlargement in the middle;

[0018] Figure 4 for Figure 2Enlarged schematic diagram of the structure at point B in the middle.

[0019] In the figure: the cutter head 1, the cutter rod 2, the elastic gasket 3, the plug-in slot 4, the plug-in rod 5, the positioning slot 6, the positioning rod 7, the limit block mounting slot 8, the limit spring 9, the limit block 10, the limit slot 11, the push piece 12, the connecting rod 13, the brake pad 14, and the connecting rod hole 15. DETAILED DESCRIPTION

[0020] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Embodiment 1

[0022] See also Figures 1 to 4 The utility model provides a technical solution: a high-precision boring machine tool head for oil cylinder barrel processing, comprising: a tool head 1, a plug-in rod 5 is provided at one end of the tool head 1, the plug-in rod 5 is movably plugged into the plug-in slot 4, the plug-in slot 4 is arranged on the surface of the tool rod 2, a limit block mounting groove 8 is arranged on the surface of the plug-in rod 5, a limit block 10 is movably plugged into the limit block mounting groove 8, one end of the limit block 10 extending into the limit block mounting groove 8 is fixed with a limit spring 9, the other end of the limit spring 9 is fixed on the inner wall of the limit block mounting groove 8, the other end of the limit block 10 is movably plugged into the limit groove 11, the limit groove 11 is arranged on the inner wall of the plug-in slot 4, the plug-in rod 5 is a rectangular rod-shaped structure, the plug-in slot 4 is a rectangular slot body structure, and the plug-in slot 4 cooperates with the plug-in rod 5.

[0023] In actual use, one end of the limit block 10 is inserted into the limit block installation groove 8 opened on the surface of the plug-in rod 5, and the other end of the limit block 10 is inserted into the limit groove 11 opened on the surface of the tool rod 2. When the tool rod 2 rotates, the inner wall of the plug-in groove 4 pushes the plug-in rod 5 to rotate, and the plug-in rod 5 drives the cutter head 1 to rotate. The high-precision boring machine tool head used for oil cylinder barrel processing changes the plug-in rod 5 into a rectangular rod, and the plug-in groove 4 into a rectangular groove body. At the same time, the connecting piece between the plug-in rod 5 and the tool rod 2 is changed to a rectangular limit block 10. When the tool rod 2 rotates, the plug-in rod 5 and the plug-in groove 4 cooperate to lead the plug-in rod 5 to rotate with the tool rod 2. At the same time, the cooperation of the limit block 10 and the limit groove 11 can also make the plug-in rod 5 rotate along with the knife rod 2. Therefore, the force used to drive the plug-in rod 5 to rotate is decomposed on the surface of the plug-in rod 5 and the limit block 10, reducing the wear of the limit block 10. The wear of the limit block 10 occurs in the radial direction of the plug-in rod 5, and the connection between the plug-in rod 5 and the plug-in groove 4 depends on the contact surface between the limit block 10 and the limit groove 11 along the radial direction of the plug-in rod 5. Therefore, even if the limit block 10 wears under the rotation of the plug-in rod 5, it will not affect the connection between the plug-in rod 5 and the plug-in groove 4, and thus will not affect the installation of the cutter head 1 and the knife rod 2.

[0024] Embodiment 2

[0025] On the basis of the first embodiment, in order to facilitate the disassembly and assembly of the cutter head 1 and the cutter rod 2, the cutter head 1 is provided with a plug-in rod 5 at one end of the cutter head 1, the plug-in rod 5 is movably plugged into the plug-in slot 4, the plug-in slot 4 is arranged on the surface of the cutter rod 2, and a limit block mounting slot 8 is arranged on the surface of the plug-in rod 5. A limit block 10 is movably plugged into the limit block mounting slot 8. One end of the limit block 10 extending into the limit block mounting slot 8 is fixed with a limit spring 9, and the other end of the limit spring 9 is fixed on the inner wall of the limit block mounting slot 8. The other end of the limit block 10 is movably plugged into the limit slot 11, and the limit slot 11 is arranged on the inner wall of the plug-in slot 4. The limit slot 11 is a rectangular slot body, and the part of the limit block 10 extending into the limit slot 11 is provided with an inclined surface. A connecting rod hole 15 is provided on the surface, and the connecting rod hole 15 is connected with the limiting groove 11. The connecting rod hole 15 is a rectangular hole. The side length of the connecting rod hole 15 is smaller than the side length of the limiting groove 11. A connecting rod 13 is movably inserted in the connecting rod hole 15. A push piece 12 is fixed at one end of the connecting rod 13, and the push piece 12 is slidably connected in the limiting groove 11. A brake pad 14 is fixed at the other end of the connecting rod 13. An elastic gasket 3 and a positioning rod 7 are fixed at one end of the cutter head 1, and the other end of the elastic gasket 3 is against the surface of the knife rod 2. Two groups of positioning rods 7 are provided, and the two groups of positioning rods 7 are symmetrically distributed about the insertion rod 5. The positioning rod 7 is a round rod structure. The two groups of positioning rods 7 are respectively movably inserted in two groups of positioning grooves 6, and the two groups of positioning grooves 6 are both provided on the surface of one end of the knife rod 2.

[0026] When the cutter head 1 needs to be removed from the cutter bar 2, the brake pad 14 is pressed in the direction close to the cutter bar 2. When the movement of the brake pad 14 passes through the connecting rod 13, the push plate 12 moves in the same direction, so that the push plate 12 pushes the limit block 10 out of the limit groove 11. After the limit block 10 is withdrawn from the limit groove 11, the plug-in rod 5 can be pulled out of the plug-in groove 4, so that the cutter head 1 is removed from the surface of the cutter bar 2; when the cutter head 1 needs to be installed on the cutter bar 2, the opening direction of the limit block installation groove 8 on the surface of the plug-in rod 5 is toward the direction of the brake pad 14, and then the positioning rod 7 is aligned with the positioning groove 6. When the connecting rod 5 is aligned with the connecting groove 4, the connecting rod 5 is inserted into the connecting groove 4. When the inclined surface of the limit block 10 contacts the inner wall of the connecting groove 4, the limit block 10 is completely pushed into the limit block installation groove 8, so that the limit spring 9 is compressed by the inner wall of the limit block installation groove 8 and the limit block 10. When the limit block installation groove 8 is aligned with the limit groove 11, the end of the elastic gasket 3 away from the cutter head 1 is also pressed against the surface of the knife rod 2. At this time, the limit spring 9 pushes one end of the limit block 10 into the limit groove 11 under its own elastic action, and restores the limit between the connecting rod 5 and the connecting groove 4, thereby installing the knife rod 2 on the cutter head 1.

[0027] Embodiment 3

[0028] On the basis of the second embodiment, in order to prevent the connecting rod 13 from sliding out of the connecting rod hole 15 , the push plate 12 and the brake plate 14 are both rectangular plate structures, and the sizes of the push plate 12 and the brake plate 14 are both larger than the opening size of the connecting rod hole 15 .

[0029] A push piece 12 and a brake piece 14 are fixed to both ends of the connecting rod 13 , and the sizes of the push piece 12 and the brake piece 14 are larger than the opening size of the connecting rod 13 , so that the connecting rod 13 is limited in the connecting rod hole 15 and will not slide out of the connecting rod hole 15 .

[0030] Embodiment 4

[0031] On the basis of Example 3, in order to facilitate the alignment of the limit block installation groove 8 and the limit groove 11 and further reduce the wear of the limit block 10 during rotation, two groups of positioning rods 7 are provided. The two groups of positioning rods 7 are symmetrically distributed about the plug-in rod 5. The positioning rod 7 has a round rod structure. The two groups of positioning rods 7 are respectively movably plugged into the two groups of positioning grooves 6. The two groups of positioning grooves 6 are both opened on the surface of one end of the knife rod 2.

[0032] The cooperation of the two groups of positioning rods 7 and the two groups of positioning grooves 6 facilitates the positioning of the cutter head 1 during installation, thereby facilitating the alignment of the limit block installation groove 8 and the limit groove 11. On the other hand, when the cutter rod 2 rotates, the positioning groove 6 pushes the positioning rod 7 to rotate, so that the cutter head 1 rotates with the cutter rod 2, further reducing the radial force exerted on the limit block 10 when the cutter head 1 rotates with the cutter rod 2, thereby reducing the wear of the limit block 10.

[0033] In actual use, one end of the limit block 10 is inserted into the limit block installation groove 8 opened on the surface of the plug-in rod 5, and the other end of the limit block 10 is inserted into the limit groove 11 opened on the surface of the tool rod 2. When the tool rod 2 rotates, the inner wall of the plug-in groove 4 pushes the plug-in rod 5 to rotate, and the plug-in rod 5 drives the cutter head 1 to rotate. The high-precision boring machine tool head used for cylinder barrel processing changes the plug-in rod 5 into a rectangular rod, the plug-in groove 4 into a rectangular groove body, and the connecting piece between the plug-in rod 5 and the tool rod 2 is changed to a rectangular limit block 10. When the tool rod 2 rotates, the plug-in rod 5 and the plug-in groove 4 cooperate to lead the plug-in rod 5 to rotate with the tool rod 2. At the same time, the limit block 10 and the limit With the cooperation of the positioning groove 11, the connecting rod 5 can also rotate with the knife rod 2. Therefore, the force used to drive the connecting rod 5 to rotate is decomposed on the surface of the connecting rod 5 and the limiting block 10, reducing the wear of the limiting block 10. The wear of the limiting block 10 occurs in the radial direction of the connecting rod 5, and the connection between the connecting rod 5 and the connecting groove 4 depends on the contact surface between the limiting block 10 and the limiting groove 11 along the radial direction of the connecting rod 5. Therefore, even if the limiting block 10 is worn under the rotation of the connecting rod 5, it will not affect the connection between the connecting rod 5 and the connecting groove 4, and further will not affect the installation of the cutter head 1 and the cutter rod 2. When the cutter head 1 needs to be removed from the cutter rod 2, The brake pad 14 is pressed in the direction close to the knife bar 2. When the movement of the brake pad 14 passes through the connecting rod 13, the push plate 12 moves in the same direction, so that the push plate 12 pushes the limit block 10 out of the limit groove 11. After the limit block 10 is withdrawn from the limit groove 11, the plug-in rod 5 can be pulled out from the plug-in groove 4, so that the cutter head 1 is removed from the surface of the knife bar 2; when the cutter head 1 needs to be installed on the knife bar 2, the opening direction of the limit block installation groove 8 on the surface of the plug-in rod 5 is toward the direction of the brake pad 14, and then the positioning rod 7 is aligned with the positioning groove 6, and the plug-in rod 5 is inserted into the plug-in groove 4. When the inclined surface of the limit block 10 contacts the inner wall of the plug-in groove 4, the limit block 10 is completely pushed into the limit The limit spring 9 is in the limit block installation groove 8, so that the limit spring 9 is compressed by the inner wall of the limit block installation groove 8 and the limit block 10. When the limit block installation groove 8 is aligned with the limit groove 11, the end of the elastic gasket 3 away from the cutter head 1 is also pressed against the surface of the cutter rod 2. At this time, the limit spring 9 pushes one end of the limit block 10 into the limit groove 11 under its own elastic action, and restores the limit between the plug-in rod 5 and the plug-in groove 4, so that the cutter rod 2 is installed on the cutter head 1; the two ends of the connecting rod 13 are respectively fixed with a push piece 12 and a brake piece 14, and the sizes of the push piece 12 and the brake piece 14 are larger than the opening size of the connecting rod 13, so that the connecting rod 13 is limited in the connecting rod hole 15 and will not slide out of the connecting rod hole 15;The cooperation of the two sets of positioning rods 7 and the two sets of positioning grooves 6 facilitates the positioning of the cutter head 1 during installation, thereby facilitating the alignment of the stop block installation groove 8 and the stop groove 11. On the other hand, when the cutter bar 2 rotates, the positioning groove 6 pushes the positioning rod 7 to rotate, so that the cutter head 1 rotates with the cutter bar 2, further reducing the radial force on the stop block 10 when the cutter head 1 rotates with the cutter bar 2, thereby reducing the wear of the stop block 10. ;

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision boring machine tool head for cylinder barrel processing, comprising: A cutter head (1), one end of which is provided with a plug-in rod (5), the plug-in rod (5) is movably plugged into a plug-in slot (4), the plug-in slot (4) is arranged on the surface of the cutter rod (2), and is characterized in that: a limit block mounting slot (8) is arranged on the surface of the plug-in rod (5), a limit block (10) is movably plugged into the limit block mounting slot (8), one end of the limit block (10) extending into the limit block mounting slot (8) is fixed with a limit spring (9), the other end of the limit spring (9) is fixed on the inner wall of the limit block mounting slot (8), the other end of the limit block (10) is movably plugged into a limit slot (11), and the limit slot (11) is arranged on the inner wall of the plug-in slot (4).

2. The high-precision boring machine tool head for cylinder barrel machining according to claim 1, characterized in that: The plug-in rod (5) is in a rectangular rod-shaped structure, the plug-in slot (4) is in a rectangular slot body structure, and the plug-in slot (4) matches the plug-in rod (5).

3. The high-precision boring machine tool head for cylinder barrel machining according to claim 1, characterized in that: The limiting groove (11) is in the form of a rectangular groove, and the portion of the limiting block (10) extending into the limiting groove (11) is provided with an inclined surface.

4. The high-precision boring machine tool head for cylinder barrel machining according to claim 1, characterized in that: A connecting rod hole (15) is provided on the surface of the knife rod (2), the connecting rod hole (15) is connected with the limiting groove (11), the connecting rod hole (15) is a rectangular hole, the side length of the connecting rod hole (15) is smaller than the side length of the limiting groove (11), a connecting rod (13) is movably inserted in the connecting rod hole (15), a push plate (12) is fixed at one end of the connecting rod (13), the push plate (12) is slidably connected in the limiting groove (11), and a brake plate (14) is fixed at the other end of the connecting rod (13).

5. The high-precision boring machine tool head for cylinder barrel machining according to claim 4, characterized in that: The push plate (12) and the brake plate (14) are both rectangular plate structures, and the sizes of the push plate (12) and the brake plate (14) are both larger than the opening size of the connecting rod hole (15).

6. The high-precision boring machine tool head for cylinder barrel machining according to claim 1, characterized in that: An elastic gasket (3) and a positioning rod (7) are fixed to one end of the cutter head (1), and the other end of the elastic gasket (3) abuts against the surface of the cutter rod (2).

7. The high-precision boring machine tool head for cylinder barrel machining according to claim 6, characterized in that: The positioning rods (7) are provided in two groups. The two groups of positioning rods (7) are symmetrically distributed about the plug-in rod (5). The positioning rods (7) are round rod structures. The two groups of positioning rods (7) are movably plugged into two groups of positioning grooves (6) respectively. The two groups of positioning grooves (6) are both arranged on one end surface of the knife rod (2).

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