A drilling and tapping device for threaded holes on the end face of a ship engine base

Abstract

This utility model discloses a drilling and tapping device for threaded holes on the end face of a ship engine base. It includes a base on which horizontal support square steel bars arranged in a cross shape are fixedly mounted. A vertically extendable lifting column is fixedly mounted at the intersection of the cross-shaped horizontal support square steel bars. A mounting plate is fixedly mounted at the top of the lifting column, and a rotating arm is rotatably mounted on the mounting plate. A drilling and tapping assembly is mounted at the end of the rotating arm. The lifting column is used to adjust the height of the drilling and tapping assembly to adapt to ship engine bases of different heights. The rotating arm supports and can adjust the horizontal position of the drilling and tapping assembly by rotation. This utility model's drilling and tapping device for threaded holes on the end face of a ship engine base can adapt to ship engine bases of different heights, flexibly adjust the drilling and tapping position, stably support the engine base, is easy to operate, and improves processing efficiency and quality.

Description

Technical Field

[0001] This utility model relates to the field of equipment processing technology, specifically to a device for processing end face threaded holes of ship engine bases of various specifications. Background Technology

[0002] As the core support structure of a ship's engine, the engine mount requires multiple sets of high-precision threaded mounting holes machined on its end face for equipment fixation. Current machining processes face the following technical bottlenecks: the diameter of ship engine mounts generally ranges from Φ1.5 to 4 meters, with significant differences in size between different models. Traditional radial drilling machines typically have an effective machining radius of no more than 1.5 meters, which cannot cover the entire end face of large engine mounts, forcing operators to repeatedly lift and adjust the machine mount's orientation to complete all hole machining. To circumvent the stroke limitations of radial drilling machines, the industry typically uses CNC milling machines to machine the end faces. However, CNC milling machines are expensive, and each setup takes a long time, resulting in low utilization of critical equipment. Utility Model Content

[0003] To address the problems existing in the prior art, this utility model provides an integrated device that adapts to various specifications of ship engine bases and enables drilling and tapping of the end face in all positions, thereby overcoming the industry dilemma of high equipment resource occupancy and low processing efficiency.

[0004] The technical solution adopted by this utility model is as follows: A drilling and tapping device for threaded holes on the end face of a ship engine base includes a base, on which horizontal support square steels arranged in a cross shape are fixedly installed. A vertically extendable lifting column is fixedly installed at the intersection of the horizontal support square steels. A mounting plate is fixedly installed at the top of the lifting column. A rotating arm is rotatably installed on the mounting plate. A drilling and tapping assembly is installed at the end of the rotating arm. The lifting column is used to adjust the height of the drilling and tapping assembly to adapt to ship engine bases of different heights. The rotating arm is used to support and can adjust the horizontal position of the drilling and tapping assembly by rotation.

[0005] Furthermore, the mounting plate surface is provided with multiple positioning mounting points at different positions, and the rotating arm can be selectively mounted at any of the positioning mounting points.

[0006] Furthermore, the boom is a two-stage boom, which includes a first rotating shaft mounted on the mounting plate, a first-stage boom rotatably connected to the first rotating shaft, a second rotating shaft mounted at the end of the first-stage boom, and a second-stage boom rotatably connected to the second rotating shaft, and the drilling and tapping assembly is mounted at the end of the second-stage boom.

[0007] Furthermore, the upper end face of the horizontal support square steel is provided with a guide groove along the length direction, and a pad block for supporting the ship's engine base is slidably connected to the guide groove.

[0008] Furthermore, the number of the pad block sliders is four, which are slidably connected to the guide grooves of the four horizontal support square steels that intersect in a cross shape, forming a rectangular support surface.

[0009] Furthermore, the lifting column includes a fixed sleeve fixed to the base, a lifting sleeve slidably sleeved inside the fixed sleeve, a locking mechanism between the fixed sleeve and the lifting sleeve, and a mounting plate fixedly installed on the top of the lifting sleeve.

[0010] Furthermore, the cross-sections of the fixed sleeve and the lifting sleeve are mutually matched rectangles.

[0011] Furthermore, the locking mechanism includes a plurality of positioning holes arranged along the axial direction of the fixed sleeve, and a through locking hole is provided on the lifting sleeve. The locking pin passes through the positioning holes and the locking hole to fix the fixed sleeve and the lifting sleeve.

[0012] The beneficial effects of this utility model are as follows: This utility model uses a lifting column to drive the drilling and tapping assembly to move up and down, adapting to various machine base heights and expanding the applicability of the device; simultaneously, by utilizing the rotational extension capability of the rotating arm, the drilling and tapping assembly can process the entire end face of the ship's machine base, eliminating the need for equipment replacement or workpiece displacement due to differences in machine base dimensions in traditional processes; multiple positioning mounting points on the mounting plate surface enable radial adjustment of the rotating arm base position, further expanding the working range of the drilling and tapping assembly and improving adaptability; the sliding cooperation between the guide groove on the cross-shaped support square steel and the shim slider allows the four shim sliders to form a rectangular support surface, achieving hoisting and positioning of the ship's machine base and solving processing errors caused by unevenness of the ship's machine base bottom surface; the overall structure is simple and easy to operate. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the working state of this utility model. Detailed Implementation

[0015] To facilitate understanding of this utility model, it will be described more comprehensively and in detail below with reference to the accompanying drawings and preferred embodiments. However, the scope of protection of this utility model is not limited to the following specific embodiments.

[0016] like Figure 1 , Figure 2As shown in the figure, this embodiment provides a drilling and tapping device for threaded holes on the end face of a ship engine base, mainly composed of a base 1, horizontal support square steel 2, lifting column 3, mounting plate 4, rotating arm 5, and drilling and tapping assembly 6. The base 1 serves as the basic support structure for the entire device, providing a mounting platform for other components. The horizontal support square steel 2 is arranged in a cross shape on the base 1, forming a stable support frame. The lifting column 3 is installed at the intersection of the horizontal support square steel 2 to adjust the height of the drilling and tapping assembly 6 to accommodate ship engine bases 7 of different heights. By changing the height of the drilling and tapping assembly 6, it can be ensured that the assembly can accurately reach the required machining position when machining ship engine bases 7 of different specifications. The mounting plate 4 is fixedly installed on the top of the lifting column 3, serving as the mounting base for the rotating arm 5 and providing a stable support platform. The rotating arm 5 supports the drilling and tapping assembly 6 and adjusts its horizontal position by rotation, enabling the assembly to accurately reach the position on the end face of the ship engine base where the threaded hole needs to be machined. The drilling and tapping assembly 6 is used to drill and tap the end face of the ship's engine base to complete the processing of threaded holes. It is an existing mature product, so this utility model does not describe it in detail.

[0017] To further expand the applicability of the device, in this embodiment, the mounting plate 4 has multiple positioning mounting points at different locations, and the rotating arm 5 can be selectively installed at any of these positioning mounting points. This design increases the flexibility of the mounting position of the rotating arm 5, allowing the initial horizontal position of the rotating arm 5 to be adjusted according to actual processing requirements.

[0018] In this embodiment, the rotating arm 5 is a two-stage rotating arm structure, including a first rotating shaft mounted on the mounting plate 4, a first-stage rotating arm rotatably connected to the first rotating shaft, a second rotating shaft mounted at the end of the first-stage rotating arm, and a second-stage rotating arm rotatably connected to the second rotating shaft. The drilling and tapping assembly 6 is mounted at the end of the second-stage rotating arm. This two-stage rotating arm structure allows for more flexible horizontal movement of the drilling and tapping assembly, enabling a wider range of position adjustments. Through the coordinated rotation of the first and second-stage rotating arms, the drilling and tapping assembly can be precisely positioned to the desired processing location, improving processing accuracy and efficiency.

[0019] In this embodiment, a guide groove is formed along the length of the upper end face of the horizontal support square steel 2, and a shim slider for supporting the ship's engine base is slidably connected to the guide groove. There are four shim sliders, each slidably connected to the guide grooves of the four intersecting horizontal support square steels, forming a rectangular support surface. This layout provides stable and uniform support for the ship's engine base, ensuring that the engine base will not shake or shift during processing, thereby improving processing quality and solving the problem of processing errors caused by uneven bottom surfaces of the ship's engine base.

[0020] In this embodiment, the lifting column 3 includes a fixed sleeve 31 fixed to the base 1, a lifting sleeve 32 slidably sleeved within the fixed sleeve 31, and a locking mechanism disposed between the fixed sleeve 31 and the lifting sleeve 32. The mounting plate 4 is fixedly installed on the top of the lifting sleeve 32 and moves up and down as the lifting sleeve 32 rises and falls. The fixed sleeve 31 and the lifting sleeve 32 have matching rectangular cross-sections. This design prevents the lifting sleeve 32 from rotating within the fixed sleeve 31, ensuring stability during the lifting process and preventing horizontal displacement of the drilling assembly 6 during height adjustment. The locking mechanism includes multiple positioning holes 33 arranged axially along the fixed sleeve 31, and a through-hole locking hole on the lifting sleeve 32. A locking pin passes through the positioning holes and the locking hole to fix the fixed sleeve 31 and the lifting sleeve 32. This locking method is simple and reliable, and can accurately fix the drilling assembly at the required height as needed.

[0021] With the aid of the teachings present in the foregoing description and related drawings, those skilled in the art will conceive of many modifications and other embodiments of the present invention. Therefore, it is to be understood that the present invention is not limited to the specific embodiments disclosed, and modifications and other embodiments are considered to be included within the scope of the appended claims. Although specific terms are used herein, they are used in a general and descriptive sense only and are not intended to be limiting.

Claims

1. A drilling and tapping device for threaded holes on the end face of a ship's engine base, characterized in that: The system includes a base (1), on which horizontal support square steel (2) arranged in a cross shape is fixedly installed. At the intersection of the horizontal support square steel (2), a vertically telescopic lifting column (3) is fixedly installed. A mounting plate (4) is fixedly installed at the top of the lifting column (3). A rotating arm (5) is rotatably installed on the mounting plate (4). A drilling and tapping assembly (6) is installed at the end of the rotating arm (5). The lifting column (3) is used to adjust the height of the drilling and tapping assembly (6) to adapt to different heights of ship engine bases (7). The rotating arm (5) is used to support and can be adjusted by rotation to the horizontal position of the drilling and tapping assembly (6). The surface of the mounting plate (4) is provided with multiple positioning mounting points at different positions. The rotating arm (5) can be selectively installed at any of the positioning mounting points. The upper end face of the horizontal support square steel (2) is provided with a guide groove along the length direction, and a pad block for supporting the ship's engine base is slidably connected to the guide groove; there are four pad blocks, which are slidably connected to the guide grooves of the four horizontal support square steels (2) in a cross shape to form a rectangular support surface.

2. The drilling and tapping device for threaded holes on the end face of a ship engine base as described in claim 1, characterized in that: The rotating arm (5) is a two-stage rotating arm, which includes a first rotating shaft mounted on the mounting plate (4), a first-stage rotating arm rotatably connected to the first rotating shaft, a second rotating shaft mounted at the end of the first-stage rotating arm, and a second-stage rotating arm rotatably connected to the second rotating shaft. The drilling and tapping assembly (6) is mounted at the end of the second-stage rotating arm.

3. The drilling and tapping device for threaded holes on the end face of a ship engine base as described in claim 1, characterized in that: The lifting column (3) includes a fixed sleeve (31) fixed on the base (1), a lifting sleeve (32) slidably sleeved in the fixed sleeve (31), a locking mechanism between the fixed sleeve (31) and the lifting sleeve (32), and a mounting plate (4) fixedly installed on the top of the lifting sleeve (32).

4. The drilling and tapping device for threaded holes on the end face of a ship engine base as described in claim 3, characterized in that: The cross-sections of the fixed sleeve (31) and the lifting sleeve (32) are mutually matching rectangles.

5. The drilling and tapping device for threaded holes on the end face of a ship engine base as described in claim 3, characterized in that: The locking mechanism includes a plurality of positioning holes (33) arranged along the axial direction of the fixed sleeve (31), and a through locking hole is provided on the lifting sleeve (32). The locking pin passes through the positioning hole and the locking hole to fix the fixed sleeve (31) and the lifting sleeve (32).

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