A non-welding boring machine positioning adjustment device and method

Abstract

This invention discloses a non-welding boring machine positioning and adjustment device and method, applied to a boring machine and a base structure. The base structure includes an upper annular panel and a lower rib structure. The non-welding boring machine positioning and adjustment device includes a horizontal adjustment mechanism and a central adjustment mechanism. The horizontal adjustment mechanism includes an upward adjustment support and a downward adjustment locking assembly. The upward adjustment support is installed below the boring machine, and the downward adjustment locking assembly is connected to the top of the boring machine and the base structure. The horizontal adjustment mechanism is used to adjust the boring machine to a horizontal state. The central adjustment mechanism includes multiple adjustment support rods and multiple support plates. The multiple adjustment support rods are evenly arranged around the circumference of the boring machine and are all installed on the boring machine. Two adjustment support rods located on the left and right sides of the boring machine are pressed against the rib structure. The remaining adjustment support rods are pressed against the rib structure via the support plates. The central adjustment mechanism is used to adjust the center position of the boring machine.

Description

Technical Field

[0001] This invention relates to the field of shipbuilding technology, and in particular to a non-welding boring machine positioning and adjustment device and method. Background Technology

[0002] In shipbuilding, the installation of certain key equipment is a particularly important step, requiring extremely high strength and installation precision for its base structure. Due to welding deformation, a significant height difference can form on the base surface, necessitating machining to refine the upper surface of the base.

[0003] Furthermore, since the hull structure and stiffening plate materials of some ships are made of special high-strength steel, directly welding the boring machine fixed bracket to the hull structure will affect the strength of the hull structure and the strength of the stiffening plates, and may even affect the installation of the base. Summary of the Invention

[0004] This application provides a boring machine positioning and adjustment device and method without welding, which solves the technical problem in the prior art of how to effectively adjust and fix the boring machine without welding the support on the hull structure.

[0005] This application provides a non-welding boring machine positioning and adjustment device, applied to a boring machine and a base structure. The base structure includes an upper annular panel and a lower rib structure. The non-welding boring machine positioning and adjustment device includes a horizontal adjustment mechanism and a central adjustment mechanism. The horizontal adjustment mechanism includes an upward adjustment support and a downward adjustment locking assembly. The upward adjustment support is installed below the boring machine, and the downward adjustment locking assembly is connected to the top of the boring machine and the base structure. The horizontal adjustment mechanism is used to adjust the boring machine to a horizontal state. The central adjustment mechanism includes multiple adjustment support rods and multiple support plates. The multiple adjustment support rods are evenly arranged around the circumference of the boring machine and are all installed on the boring machine. Two adjustment support rods located on the left and right sides of the boring machine are pressed against the rib structure. The remaining adjustment support rods are pressed against the rib structure via the support plates. The central adjustment mechanism is used to adjust the center position of the boring machine.

[0006] In some implementations, the center adjustment mechanism is used to adjust the concentricity between the center of the boring machine and the center of the base panel to be less than 1 mm, and the base panel is the top surface of an annular panel.

[0007] In some embodiments, the central adjustment mechanism includes eight adjusting support rods and six support plates. The eight adjusting support rods are arranged in the shape of a regular octagon of the boring machine. The eight adjusting support rods are respectively the stern adjusting support rod, port stern adjusting support rod, port side adjusting support rod, port bow adjusting support rod, bow adjusting support rod, starboard bow adjusting support rod, starboard side adjusting support rod, and starboard stern adjusting support rod. The six support plates are respectively the stern support plate, port stern support plate, port bow support plate, bow support plate, starboard bow support plate, and starboard stern support plate. The stiffening plate structure includes a stern side stiffening plate, a port side stiffening plate, a bow side stiffening plate, and a starboard side stiffening plate; the port side adjusting support rod is used to abut the port side stiffening plate, the starboard side adjusting support rod is used to abut the starboard side stiffening plate, the stern adjusting support rod abuts the stern support plate against the stern side stiffening plate, and the bow adjusting support rod abuts the bow support plate against the bow side stiffening plate; the port stern adjusting support rod abuts the port stern support plate, the port bow adjusting support rod abuts the port bow support plate, the starboard bow adjusting support rod abuts the starboard bow support plate, and the starboard stern adjusting support rod abuts the starboard stern support plate against the adjacent side stiffening plates one by one.

[0008] In some implementations, the upward adjustment support is the top weight.

[0009] In some embodiments, the downward adjustment locking assembly includes a G-clamp, a long screw, a fixed plate, a movable plate, a force-bearing block, and a nut. The long screw is fixedly connected to the fixed plate, and the fixed plate is fixedly connected to the rib structure via the G-clamp. The movable plate is sleeved on the long screw, and the nut is threadedly connected to the long screw. The nut is used to press the movable plate against the top surface of the boring machine and to support the force-bearing block between the fixed plate and the movable plate. The force-bearing block is used to support the tail of the movable plate.

[0010] In some implementations, a corresponding counterweight is installed at 180° to the horizontal plane of the boring arm of the boring machine to reduce the horizontal error caused by the boring arm's own weight falling.

[0011] In some implementations, the magnetic base is attached to the boring arm of the boring machine, and the dial indicator is vertically attached to the feed lever of the boring tool.

[0012] In some implementations, the boring tool of the boring machine is a tungsten carbide boring tool.

[0013] A method for positioning and adjusting a boring machine without welding, utilizing the aforementioned positioning and adjustment device for a boring machine without welding, includes: removing the eight struts of the horizontal support of the boring machine and installing multiple adjusting support rods from the positioning and adjustment device; after installing the adjusting support rods, hoisting the boring machine into the base structure, placing an upward adjusting support below the boring machine, and placing the boring machine on the upward adjusting support; after placing the boring machine, installing a downward adjusting locking assembly and multiple support plates, with two plates located on the left and right sides of the boring machine. The adjusting support rods are tightened against the stiffening plate structure. All other adjusting support rods, except for the two mentioned above, are tightened against the stiffening plate structure via a support plate. After the support plate is tightened, the center of the boring machine is adjusted using the line-reading circle and boring hole circle markings on the base panel, along with the adjusting support rods. The level of the boring arm is checked using a bar level. The boring machine is leveled by adjusting the upward adjusting support and the downward adjusting locking assembly. After adjusting the boring machine's level and center, all adjusting support rods are locked to complete the positioning and adjustment of the boring machine.

[0014] In some implementations, the process of adjusting the boring machine level also includes installing a corresponding counterweight at 180° to the horizontal plane of the boring arm to reduce the horizontal error caused by the boring arm's own weight; when the boring machine is machining the base panel, a magnetic dial indicator is attached to the boring arm, and a dial indicator is vertically attached to the boring tool feed lever. The feed amount of each cut is precisely controlled by the dial indicator reading.

[0015] The beneficial effects of this application are as follows: It provides a non-welding boring machine positioning and adjustment device, including a horizontal adjustment mechanism and a center adjustment mechanism. The eight struts of the horizontal support of the boring machine are removed, and multiple adjustment support rods of the center adjustment mechanism are installed on the boring machine. Two adjustment support rods located on the left and right sides of the boring machine are pressed against the stiffening plate structure. The remaining adjustment support rods are pressed against the stiffening plate structure by the support plate. The center of the boring machine is adjusted by combining the line-viewing circle and boring hole circle marking punch on the base panel. During installation, the upward adjustment support is first installed at the bottom. The boring machine is placed roughly horizontally on the upward support. The horizontality of the boring arm is checked by using a bar level. The horizontality of the four points on the left and right sides of the beginning and end is checked each time. The horizontality of the boring machine is adjusted by adjusting the upward adjustment support and the downward adjustment locking assembly. After the horizontality and center are adjusted, all adjustment supports are symmetrically locked.

[0016] Using this device, the boring machine can be accurately adjusted and effectively fixed without welding, enabling machining of the upper surface of the base. This reduces the impact of high temperatures during welding on the hull structure, effectively ensuring the strength of the hull structure and the subsequent installation of shielding materials. On the other hand, it reduces the impact of welding and air gouging fumes on the construction environment, improving the construction environment. In addition, the base can be directly removed after machining, saving the work of root cleaning and air gouging, reducing work steps and improving work efficiency. After machining, the base without welding has good storage properties and can be used for subsequent ships of the same model, saving materials for subsequent products. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention.

[0018] Figure 1 This is a schematic diagram of a non-welding boring machine positioning and adjustment device provided in this application.

[0019] Figure labels: 1-Boiling machine, 2-Stern adjusting support rod, 3-Stern support plate, 4-Port stern adjusting support rod, 5-Port side adjusting support rod, 6-Port bow adjusting support rod, 7-Bow adjusting support rod, 8-Starboard bow adjusting support rod, 9-Starboard side adjusting support rod, 10-Starboard stern adjusting support rod, 11-Downward adjusting locking assembly, 12-Upward adjusting support, 13-Annular panel, 14-Fir plate structure, 14a-Stern side rib plate, 14b-Port side rib plate, 14c-Bow side rib plate, 14d-Starboard side rib plate, 15-Counterweight block, 16-Bow support plate, 17-Starboard stern support plate, 18-Port stern support plate, 19-Port bow support plate, 20-Starboard bow support plate, 21-Boiling tool housing, 22-Boiling arm. Detailed Implementation

[0020] Example 1

[0021] Please refer to Figure 1 This embodiment provides a non-welding boring machine positioning and adjustment device, including a horizontal adjustment mechanism and a center adjustment mechanism. This device is applied to the boring machine and its base structure to achieve positioning and adjustment of the boring machine within the base structure. The boring machine in this device generally refers to a portable boring machine. Figure 1 As shown, the base structure includes two layers: an annular panel 13 on the upper layer and a ribbed structure 14 on the lower layer. In this embodiment, the base panel is the top surface of the annular panel 13. The machining method is to process the base panel by boring.

[0022] The horizontal adjustment mechanism includes an upward adjusting support 12 and a downward adjusting locking assembly 11. The upward adjusting support 12 is installed below the boring machine 1, and the boring machine 1 is placed on the upward adjusting support 12. Multiple upward adjusting supports 12 are evenly spaced along the circumference of the boring machine 1. The downward adjusting locking assembly 11 is connected to the top of the boring machine 1 and to the base structure. By cooperating with the upward adjusting support 12, the downward adjusting locking assembly 11 is used to adjust the boring machine 1 to a horizontal position.

[0023] Please refer to Figure 1 The center adjustment mechanism includes multiple adjusting support rods and multiple support plates. The adjusting support rods are evenly arranged around the boring machine 1 and are all fixedly installed on the boring machine 1. Two adjusting support rods located on the left and right sides of the boring machine 1 are pressed against the stiffening plate structure 14. The remaining adjusting support rods are pressed against the stiffening plate structure 14 via support plates. The center adjustment mechanism is used to adjust the center position of the boring machine. Before installing the multiple adjusting support rods on the boring machine 1, the eight horizontal support rods of the portable boring machine 1 must be removed. After the adjusting support rods are pressed against the support plates or stiffening plate structure 14, the center of the boring machine is adjusted using the markings on the base panel, such as the line-reading circle and the boring hole circle.

[0024] During installation, first install the upward adjustment support 12 at the bottom, place the boring machine 1 roughly horizontally on the upward adjustment support 12, use a bar level to check the level of the boring arm, check the level of the four points at the beginning, end and left and right each time, adjust the level of the boring machine 1 by adjusting the upward adjustment support 12 and the downward adjustment locking assembly 11, and after adjusting the level and center, symmetrically lock all the adjustment supports.

[0025] Using this device, the boring machine 1 can be accurately adjusted and effectively fixed without welding, enabling machining of the upper surface of the base. This reduces the impact of high temperatures during welding on the hull structure, effectively ensuring the strength of the hull structure and the subsequent installation of shielding materials. Furthermore, it reduces the impact of welding and air gouging fumes on the construction environment, improving the working conditions.

[0026] Furthermore, the base can be directly removed after machining, saving the work of root cleaning and air gouging, reducing work steps and improving work efficiency. The non-welded support base allows for good storage after machining, making the device usable for subsequent vessels of the same model, thus saving materials for later products.

[0027] In some implementation methods, please refer to Figure 1 The central adjustment mechanism includes eight adjusting support rods and six support plates. The eight adjusting support rods are arranged in a regular octagonal shape according to the boring machine 1. In other embodiments, it can also be a scheme with four adjusting support rods, etc. For the scheme with eight adjusting support rods, please refer to... Figure 1The six support plates are: stern adjustment support rod 2, port stern adjustment support rod 4, port side adjustment support rod 5, port bow adjustment support rod 6, bow adjustment support rod 7, starboard bow adjustment support rod 8, starboard side adjustment support rod 9, and starboard stern adjustment support rod 10. The six support plates are: stern support plate 3, port stern support plate 18, port bow support plate 19, bow support plate 16, starboard bow support plate 20, and starboard stern support plate 17.

[0028] In practical applications, the stiffener structure 14 includes a stern stiffener 14a, a left stiffener 14b, a bow stiffener 14c, and a right stiffener 14d. The port side adjusting support rod 5 abuts against the left stiffener 14b, the starboard side adjusting support rod 9 abuts against the right stiffener 14d, the stern adjusting support rod 2 abuts the stern support plate 3 against the stern stiffener 14a, and the bow adjusting support rod 7 abuts the bow support plate 16 against the bow stiffener 14c. The port stern adjusting support rod 4 abuts the port stern support plate 18 against the adjacent side stiffeners, the port bow adjusting support rod 6 abuts the port bow support plate 19 against the adjacent side stiffeners, the starboard bow adjusting support rod 8 abuts the starboard bow support plate 20 against the adjacent side stiffeners, and the starboard stern adjusting support rod 10 abuts the starboard stern support plate 17 against the adjacent side stiffeners.

[0029] For example, regarding the left tail adjustment support rod 4, the left tail support plate 18 is pressed against the adjacent two side stiffeners. By adjusting the length of the left tail adjustment support rod 4, one end of the left tail support plate 18 is pressed against the cross intersection of the left side stiffener 14b, and the other end of the left tail support plate 18 is smoothly pressed against the tail side stiffener 14a.

[0030] In some implementations, the upward adjustment support 12 serves as the top brace. For example... Figure 1 As shown, multiple top marks are evenly distributed circumferentially along the installation position of the boring machine.

[0031] Figure 1 The image illustrates the installation position and arrangement of the downward adjustment locking assembly 11. In some embodiments, the downward adjustment locking assembly 11 includes a G-clamp, a long screw, a fixed plate, a movable plate, a force-bearing block, and a nut. The long screw is fixedly connected to the fixed plate, and the fixed plate is fixedly connected to the rib structure 14 via the G-clamp, thereby fixing the long screw and the rib structure 14 relatively. The movable plate is then fitted onto the long screw, and the nut is threadedly connected to the long screw, pressing the movable plate against the top surface of the boring machine. This allows the top surface of the boring machine to be horizontally adjusted by adjusting the position of the nut on the long screw. Furthermore, a force-bearing block is placed between the fixed plate and the movable plate. When the nut presses the movable plate against the top surface of the boring machine, the force-bearing block supports the rear of the movable plate between the fixed plate and the movable plate. Through the cooperation of multiple circumferentially arranged downward adjustment locking assemblies 11, the boring machine 1 is adjusted to a horizontal state.

[0032] Regarding the adjustment of the center position of the boring machine 1 in this device, specifically, it involves adjusting the concentricity between the center of the boring machine 1 and the center of the base panel. In some embodiments, the center adjustment mechanism is limited to adjusting the concentricity between the center of the boring machine 1 and the center of the base panel to less than 1 mm, thereby achieving a partial positioning adjustment of the boring machine 1.

[0033] Please refer to Figure 1 The boring machine 1 is equipped with a boring arm 22, and a boring tool housing 21 is mounted on one side of the boring arm 22. The boring tool is mounted on the boring tool housing 21. In some embodiments, such as Figure 1 As shown, a corresponding counterweight 15 is installed at 180° on the horizontal plane of the boring arm 22 of the boring machine 1 to reduce the horizontal error caused by the weight of the boring arm 22 falling.

[0034] In some implementations, a magnetic base is used to attach the dial indicator to the boring arm 22 of the boring machine 1, and the dial indicator is vertically attached to the boring tool feed rod. The feed amount of each cut is precisely controlled by the dial indicator reading.

[0035] In some embodiments, the boring tool of the boring machine 1 is a tungsten carbide boring tool. Tungsten carbide boring tools have high strength, and the cutting edge can be blunted in the initial processing stage. This can effectively prevent the tool tip from cracking during the cutting of the weld seam. When the entire base plane turns white, the boring tool can be sharpened further. Then, the tool tip is lightly polished with an oilstone. This can effectively control the amount of wear on the tool tip during the cutting process and ensure the overall processing accuracy of the panel.

[0036] Example 2

[0037] Based on the non-welding boring machine positioning and adjustment device provided in Embodiment 1, this embodiment provides a non-welding boring machine positioning and adjustment method, which specifically includes the following operations.

[0038] After the annular panel is welded, check the hull level, the height difference of the base panel, and the maximum machining allowance of the base. Use a laser theodolite to find the transverse and longitudinal center lines of the base. Use the sail line to draw the transverse and longitudinal center lines. The intersection of the sail line is the center of the base. Use the center of the base as the center of the circle. Use the center of the circle to make the line circle and boring hole marking on the panel with a center punch.

[0039] Remove the eight horizontal support rods of the portable boring machine 1 and install the eight adjusting support rods from the boring machine positioning and adjustment device without welding.

[0040] After installing the adjusting support rod, use a hand-operated hoist to lift the boring machine 1 into the base structure, place the upward adjusting support 12 under the boring machine 1, and place the boring machine 1 roughly horizontally on the upward adjusting support 12.

[0041] After the boring machine 1 is placed, the hand chain hoist is removed, and four downward adjusting locking components 11 and six support plates are installed. The two adjusting support rods located on the left and right sides of the boring machine 1 are pressed against the stiffening plate structure 14. Taking advantage of the parallel arrangement of the left stiffening plate 14b and the right stiffening plate 14d in the base structure, the remaining adjusting support rods, except for these two adjusting support rods, are pressed against the stiffening plate structure 14 by the support plates.

[0042] After the support plate is tightened, the center of the boring machine 1 is adjusted by finely adjusting the length of each adjusting support rod using the line-viewing circle and boring hole circle marking punch on the base panel, so that the concentricity between the center of the boring machine 1 and the center of the base panel is less than 1mm. The level of the boring arm 22 is checked using a bar level, and the level of the four points on the left and right are checked each time. The level of the boring machine 1 is adjusted by adjusting the upward adjusting support 12 and the downward adjusting locking assembly 11.

[0043] After adjusting the level and center of the boring machine 1, all the adjusting support rods were locked, thus realizing the positioning, adjustment and installation of the boring machine 1 on the ship's base structure.

[0044] Using low-speed feed, the highest point of the base panel is determined, and rough boring begins. The rough boring cut should not exceed 1mm. A magnetic dial indicator is attached to the boring arm 22, and the dial indicator is vertically attached to the boring tool feed rod. The feed amount of each cut is precisely controlled by reading the dial indicator.

[0045] Leave a 2mm allowance for precision boring. The feed rate per precision boring should not exceed 0.40mm until the base panel meets the usage requirements.

[0046] During machining, the feed rate should be minimized, and machining should be carried out using the "less cutting, more cutting" method. The speed and feed rate of the boring machine should be controlled, and the tool holder should be installed as tightly and shortly as possible to effectively reduce the vibration of the tool body.

[0047] In some embodiments, the process of adjusting the level of the boring machine 1 further includes installing a corresponding counterweight 15 at 180° on the horizontal plane of the boring arm 22, the approximate installation position of which is as follows: Figure 1 As shown, this is to reduce the horizontal error caused by the weight of the boring arm 22 falling.

[0048] Regarding the use of a bar level to check the levelness of the boring arm 22, a bar level with an accuracy of 0.02mm / M can be selected. By using symmetrical counterweights, the levelness in four directions of 0°, 90°, 180°, and 270° can be measured to accurately ensure the levelness of the boring machine 1.

[0049] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0050] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A non-welded boring machine positioning adjustment device, characterized by, Applied to boring machines and base structures, the base structure includes an upper annular panel and a lower stiffening plate structure; the non-welded boring machine positioning and adjustment device includes: The horizontal adjustment mechanism includes an upward adjustment support and a downward adjustment locking assembly. The upward adjustment support is installed below the boring machine, and the downward adjustment locking assembly is connected to the top of the boring machine and the base structure. The horizontal adjustment mechanism is used to adjust the boring machine to a horizontal state. The center adjustment mechanism includes multiple adjusting support rods and multiple support plates. The multiple adjusting support rods are evenly arranged around the circumference of the boring machine and are all installed on the boring machine. Two of the adjusting support rods located on the left and right sides of the boring machine are pressed against the rib plate structure. The remaining adjusting support rods, except for the two adjusted support rods, are pressed against the rib plate structure via the support plates. The center adjustment mechanism is used to adjust the center position of the boring machine. The central adjustment mechanism includes 8 adjusting support rods and 6 support plates. The 8 adjusting support rods are arranged according to the regular octagon of the boring machine. The 8 adjusting support rods are the stern adjusting support rod, port stern adjusting support rod, port side adjusting support rod, port bow adjusting support rod, bow adjusting support rod, starboard bow adjusting support rod, starboard side adjusting support rod, and starboard stern adjusting support rod. The 6 support plates are the stern support plate, port stern support plate, port bow support plate, bow support plate, starboard bow support plate, and starboard stern support plate. The stiffener structure includes a stern side stiffener, a left side stiffener, a bow side stiffener, and a right side stiffener. The port side adjusting support rod is used to abut against the port side stiffener, the starboard side adjusting support rod is used to abut against the starboard side stiffener, the stern adjusting support rod abuts the stern support plate against the stern side stiffener, and the bow adjusting support rod abuts the bow support plate against the bow side stiffener. The left tail adjustment support rod will press the left tail support plate, the left head adjustment support rod will press the left head support plate, the right head adjustment support rod will press the right head support plate, and the right tail adjustment support rod will press the right tail support plate against the adjacent side stiffeners one by one. A corresponding counterweight is installed at 180° on the horizontal plane of the boring arm of the boring machine to reduce the horizontal error caused by the boring arm's own weight falling.

2. The non-welding jig positioning adjustment device of claim 1, wherein, The center adjustment mechanism is used to adjust the concentricity between the center of the boring machine and the center of the base panel to be less than 1mm, and the base panel is the top surface of the annular panel.

3. The non-welding jig positioning adjustment device of claim 1, wherein, The upward adjustment support is the top bracket.

4. The non-welding jig positioning adjustment device of claim 1, wherein, The downward adjusting locking assembly includes a G-clamp, a long screw, a fixed plate, a movable plate, a force-bearing block, and a nut. The long screw is fixedly connected to the fixed plate, and the fixed plate is fixedly connected to the rib structure via the G-clamp. The movable plate is sleeved on the long screw, and the nut is threadedly connected to the long screw. The nut is used to press the movable plate against the top surface of the boring machine and to support the force-bearing block between the fixed plate and the movable plate. The force-bearing block is used to support the tail of the movable plate.

5. The non-welding jig positioning adjustment device of claim 1, wherein, The magnetic base is attached to the boring arm of the boring machine, and the dial indicator is vertically attached to the feed mop of the boring tool.

6. The non-welding jig positioning adjustment device of claim 1, wherein, The boring tool used in the boring machine is a tungsten carbide boring tool.

7. A method of positioning and adjusting a non-welding boring machine, characterized by, The non-welding boring machine positioning and adjustment device as described in any one of claims 1-6, wherein the non-welding boring machine positioning and adjustment method comprises: Remove the eight struts of the horizontal support of the boring machine and install the multiple adjusting support rods of the aforementioned non-welded boring machine positioning and adjustment device; After installing the adjusting support rod, the boring machine is hoisted into the base structure, the upward adjusting support is placed below the boring machine, and the boring machine is placed on the upward adjusting support; After the boring machine is placed, the downward adjustment locking assembly and multiple support plates are installed. Two of the adjustment support rods located on the left and right sides of the boring machine abut against the rib plate structure. The remaining adjustment support rods, except for the two adjustment support rods, abut against the rib plate structure via the support plates. After the support plate is tightened, the center of the boring machine is adjusted by using the line-viewing circle and boring hole circle mark punch on the base panel and the adjusting support rod. The level of the boring arm is checked by using a bar level and the boring machine level is adjusted by adjusting the upward adjusting support and the downward adjusting locking assembly. After adjusting the boring machine to be level and centered, lock all the adjusting support rods to complete the positioning adjustment of the boring machine.

8. The method of claim 7, wherein: The process of adjusting the boring machine level also includes installing corresponding counterweights at 180° on the horizontal plane of the boring arm to reduce the horizontal error caused by the boring arm's own weight falling down. When the boring machine is machining the base panel, a magnetic dial indicator is attached to the boring arm, and a dial indicator is placed vertically on the boring tool feed lever. The feed amount for each cut is precisely controlled by reading the dial indicator.

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