Deep hole precision machining equipment

Abstract

The utility model discloses deep hole precision machining equipment which comprises a motor and a drill bit, the drill bit is installed at the output end of the motor, the motor is fixed to a fixing plate, at least one positioning edge set is arranged on the outer side face of the drill bit, and positioning edges in the positioning edge set are evenly distributed around the central axis of the drill bit. The outer side face of the positioning ridge set is provided with a positioning sleeve, the inner side face of the positioning sleeve is provided with grooves matched with the positioning ridges, the outer side face of the positioning sleeve is provided with an outer sleeve, a bearing is arranged between the positioning sleeve and the outer sleeve, the lower end of the outer sleeve is provided with a support, and the support is fixed to a supporting plate through a bolt. According to the deep hole precision machining equipment, shaking of the drill bit in the machining process can be effectively reduced, the drilling precision and the machining quality are improved, and the service life of the drill bit is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of deep hole machining technology, specifically a deep hole precision machining equipment. Background Technology

[0002] In machining, deep hole machining is a machining process for holes with a depth-to-diameter ratio of not less than 5, and it is suitable for machining precision parts.

[0003] Because the drill bit is relatively long in deep hole machining, it is prone to shaking during high-speed rotation and feeding, which can lead to dimensional deviations in the hole diameter. Severe shaking can even cause the drill bit to break, affecting the machining quality. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a deep hole precision machining equipment that can effectively reduce the shaking of the drill bit during the machining process, improve drilling accuracy and machining quality, and extend the service life of the drill bit, thus effectively solving the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a deep hole precision machining equipment, comprising a motor and a drill bit, wherein the drill bit is installed at the output end of the motor, the motor is fixed on a fixed plate, at least one set of positioning ridges is provided on the outer side of the drill bit, the positioning ridges in the positioning ridges are evenly distributed around the central axis of the drill bit, a positioning sleeve is provided on the outer side of the positioning ridges, a groove adapted to the positioning ridges is provided on the inner side of the positioning sleeve, an outer sleeve is provided on the outer side of the positioning sleeve, a bearing is provided between the positioning sleeve and the outer sleeve, a support is provided at the lower end of the outer sleeve, the support is fixed to a support plate by bolts, and the support plate is integrally connected to the fixed plate.

[0006] As a preferred embodiment of this utility model, the support plate is provided with two rows of mounting holes, and the mounting holes correspond to the bolt holes on the support.

[0007] As a preferred embodiment of this utility model, the lower end of the fixed plate is provided with a horizontally movable sliding frame.

[0008] In a preferred embodiment of this invention, the fixing plate and the sliding frame are connected by bolts.

[0009] As a preferred embodiment of this utility model, the lower end of the sliding frame is slidably connected to the slide block, the slide block is fixed to the upper surface of the mounting plate, one side of the sliding frame is connected to the telescopic end of the hydraulic telescopic rod, the fixed end of the hydraulic telescopic rod is fixed to the vertical plate, and the vertical plate is fixed to the upper surface of the mounting plate.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This deep hole precision machining equipment has evenly distributed positioning ridges on the drill bit, and the positioning sleeve is tightly connected to the positioning ridges through the groove in the positioning sleeve. The positioning sleeve is rotatably connected to the outer sleeve through the bearing, and the outer sleeve is fixed on the support plate. Therefore, the positioning sleeve will rotate together with the drill bit during rotation, while the outer sleeve remains stationary. Thus, the radial runout of the drill bit during rotation is limited by the positioning sleeve, effectively reducing the shaking of the drill bit. At the same time, the position of the positioning sleeve can be adjusted or the number of positioning sleeves can be increased according to the length of the drill bit, thereby effectively limiting the drill bit and ensuring drilling accuracy. Attached Figure Description

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

[0012] Figure 2 This is the front view of the present utility model;

[0013] Figure 3 This is a schematic diagram of the structure at the drill pipe.

[0014] Figure 4 This is a structural diagram of the positioning sleeve;

[0015] Figure 5 for Figure 2 Top view.

[0016] In the diagram: 1 Motor, 2 Drill bit, 3 Fixing plate, 4 Positioning ribs, 5 Positioning sleeve, 6 Groove, 7 Outer sleeve, 8 Support, 9 Support plate, 10 Mounting hole, 11 Sliding frame, 12 Sliding block, 13 Hydraulic telescopic rod, 14 Vertical plate, 15 Mounting plate. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments (for ease of description and understanding, hereinafter referred to as...). Figure 2 (The above is described above). Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] Please see Figure 1-5 The present invention provides a technical solution: a deep hole precision machining equipment, including a motor 1 and a drill bit 2, the drill bit 2 is installed at the output end of the motor 1, the drill bit 2 and the motor 1 are detachably connected, and the motor 1 is fixed on a fixing plate 3;

[0019] The outer surface of the drill bit 2 is provided with at least one set of positioning ridges 4. The number of positioning ridges 4 on the outer surface of the drill bit 2 can be appropriately increased according to the length of the drill bit 2. The positioning ridges in the positioning ridges 4 are evenly distributed around the central axis of the drill bit 2. The outer surface of the positioning ridges 4 is provided with a positioning sleeve 5. The inner surface of the positioning sleeve 5 is provided with a groove 6 that matches the positioning ridges. The positioning ridges of the positioning ridges 4 are tightly inserted into the groove 6. The outer surface of the positioning sleeve 5 is provided with an outer sleeve 7. A bearing is provided between the positioning sleeve 5 and the outer sleeve 7. The positioning sleeve 5 and the outer sleeve 7 are rotatably connected. The lower end of the outer sleeve 7 is provided with a support 8. The support 8 is fixed to the support plate 9 by bolts. The support plate 9 is integrally connected to the fixing plate 3. During the high-speed rotation of the drill bit 2, the drill bit 2 will drive the positioning sleeve 5 to rotate together. Since the positioning sleeve 5 is limited in the outer sleeve 7 by the bearing, there will be no radial wobbling during the rotation of the drill bit 2, thus ensuring the deep hole machining accuracy.

[0020] Furthermore, in order to ensure effective limiting of the drill bit 2, the support plate 9 is provided with two rows of mounting holes 10. The mounting holes 10 correspond to the bolt holes on the support 8. The position of the positioning sleeve 5 can be adjusted according to the different positions of the positioning ribs 4 on the drill bit 2 of different lengths, or the number of positioning sleeves 5 can be increased according to the number of positioning ribs 4 on the drill bit 2, thereby ensuring effective limiting of the drill bit 2.

[0021] Furthermore, the lower end of the fixed plate 3 is provided with a horizontally movable sliding frame 11, thereby controlling the drill bit 2 to move axially to drill holes;

[0022] Furthermore, to facilitate the installation and disassembly of the motor 2, the fixing plate 3 is connected to the sliding frame 11 by bolts.

[0023] Furthermore, the lower end of the sliding frame 11 is slidably connected to the slide block 12, the slide block 12 is fixed to the upper surface of the mounting plate 15, one side of the sliding frame 11 is connected to the telescopic end of the hydraulic telescopic rod 13, the fixed end of the hydraulic telescopic rod 13 is fixed to the vertical plate 14, the vertical plate 14 is fixed to the upper surface of the mounting plate 15, and the axial movement of the drill bit 2 is controlled by the hydraulic telescopic rod 13.

[0024] In use: Select a drill bit 2 of appropriate length according to the required depth of deep hole machining. When installing the drill bit 2, select the corresponding number of positioning sleeves 5 according to the number of positioning ridges 4 on the drill bit 2, and install the support 8 into the mounting hole 10 on the support plate 9 with bolts. Pass the drill bit 2 through the positioning sleeve 5 and install one end of the drill bit to the output end of the motor 1. Adjust the installation position of the support 8 according to the position of the positioning ridge on the outside of the drill bit 2 so that the positioning ridge is tightly inserted into the groove 6 on the inside of the positioning sleeve 5. Start the motor 1 so that the motor 1 drives the drill bit 2 to rotate at high speed, and at the same time drives the positioning sleeve 5 to rotate, limiting the radial sway of the drill bit 2. Control the synchronous movement of the drill bit 2, the motor 1, and the positioning sleeve 5 through the hydraulic telescopic rod 13 to perform deep hole machining on the part.

[0025] This invention can effectively ensure that the drill bit 2 will not wobble radially during the processing, thereby ensuring the processing accuracy and dimensional precision of deep holes, improving processing efficiency, and extending the service life of the drill bit 2.

[0026] The parts of the utility model not described in detail are prior art. Although embodiments of the utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the utility model. The scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A deep hole precision machining device, comprising a motor (1) and a drill bit (2), wherein the drill bit (2) is mounted on the output end of the motor (1), and the motor (1) is fixed on a fixing plate (3), characterized in that: The outer side of the drill bit (2) is provided with at least one set of positioning ridges (4). The positioning ridges in the positioning ridges (4) are evenly distributed around the central axis of the drill bit (2). The outer side of the positioning ridges (4) is provided with a positioning sleeve (5). The inner side of the positioning sleeve (5) is provided with a groove (6) that matches the positioning ridge. The outer side of the positioning sleeve (5) is provided with an outer sleeve (7). A bearing is provided between the positioning sleeve (5) and the outer sleeve (7). A support (8) is provided at the lower end of the outer sleeve (7). The support (8) is fixed to the support plate (9) by bolts. The support plate (9) is integrally connected to the fixing plate (3).

2. The deep hole precision machining equipment according to claim 1, characterized in that: The support plate (9) is provided with two rows of mounting holes (10), and the mounting holes (10) correspond to the bolt holes on the support (8).

3. The deep hole precision machining equipment according to claim 1, characterized in that: The lower end of the fixed plate (3) is provided with a horizontally movable sliding frame (11).

4. The deep hole precision machining equipment according to claim 3, characterized in that: The fixed plate (3) is connected to the sliding frame (11) by bolts.

5. A deep hole precision machining equipment according to claim 3 or 4, characterized in that: The lower end of the sliding frame (11) is slidably connected to the slide block (12), the slide block (12) is fixed on the upper surface of the mounting plate (15), one side of the sliding frame (11) is connected to the telescopic end of the hydraulic telescopic rod (13), the fixed end of the hydraulic telescopic rod (13) is fixed on the vertical plate (14), and the vertical plate (14) is fixed on the upper surface of the mounting plate (15).

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