A three-coordinate measuring integrated sub-column

Abstract

The utility model discloses a three -coordinate measurement with integral type vice stand column, including X axle removal crossbeam, and the two ends of X axle removal crossbeam bottom are respectively fixed with main stand column and vice stand column, and vice stand column is the hollow structure of rectangular of upper and lower through, and the two sides of its inner wall are evenly spaced and are provided with two reinforcing ribs, and the reinforcing rib is integral moulded structure with vice stand column inner wall, and the inside top of vice stand column is welded with fixed plate, and fixed plate is fixedly connected with X axle removal crossbeam bottom surface through bolt, and vice stand column bottom end detachably installs air float block, this vice stand column adopts integral stretch forming process, and cooperates the reinforcing rib of inner wall integral moulding, simplifies the structure, and the overall structural strength and bending -resistant capacity are improved significantly, at the same time, the bolt connection of fixed plate and X axle removal crossbeam, the detachable installation design of air float block, simplifies the assembly process, reduces maintenance cost, and air float block can effectively reduce the friction resistance when moving, improves the equipment operation smoothness, guarantees the measurement accuracy.

Description

Technical Field

[0001] This utility model relates to the field of coordinate measuring technology, and in particular to an integrated auxiliary column for coordinate measuring. Background Technology

[0002] In the field of coordinate measuring machine (CMM) technology, CMMs require multi-axis coordinated motion to achieve high-precision measurement of workpieces. Stable movement along the Y-axis is crucial for ensuring measurement accuracy. The sub-column, as an auxiliary support component for Y-axis movement, must cooperate with the main column to provide support for the X-axis moving beam, ensuring smooth movement of the X-axis moving beam along the Y-axis. However, existing sub-columns have significant shortcomings: most sub-columns employ a multi-part disassembled design, resulting in a complex overall structure. Assembly requires multiple splicing and fixing with multiple sets of connectors, leading to cumbersome and time-consuming assembly processes. Furthermore, the cumulative errors from multiple assembly stages can cause inconsistencies in the support datum between the sub-column and the main column, indirectly affecting Y-axis movement accuracy. Simultaneously, the complex disassembled structure increases the difficulty of disassembly during subsequent maintenance, hindering rapid repair or component replacement. Overall assembly and maintenance costs are high, failing to meet the CMM's requirement for "simplified assembly and improved efficiency" in sub-column usage. Therefore, optimizing the sub-column structure is urgently needed to address these issues.

[0003] Therefore, those skilled in the art have provided an integrated sub-column for coordinate measuring machines to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an integrated auxiliary column for coordinate measuring machines.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An integrated auxiliary column for coordinate measuring machine includes an X-axis movable crossbeam, and a main column and an auxiliary column for realizing Y-axis movement are respectively fixed to the bottom ends of the X-axis movable crossbeam by bolts.

[0007] The secondary column is a rectangular hollow structure that runs vertically through the interior. Two reinforcing ribs are symmetrically spaced along the height direction on both sides of its inner wall, and the reinforcing ribs are integrally formed with the inner wall of the secondary column.

[0008] A fixing plate is welded to the top of the inner side of the sub-column. The top surface of the fixing plate is flush with the top surface of the sub-column, and the fixing plate is fixedly connected to the bottom surface of the X-axis moving crossbeam by bolts.

[0009] An air flotation block can be detachably installed at the bottom of the sub-column.

[0010] Preferably, the fixing plate is adapted to the inner top of the sub-column, and only one end of the fixing plate has a gap for the air pipe to pass through between it and the corresponding side wall of the inner top of the sub-column.

[0011] The gap between the air pipes and the hollow channel of the auxiliary column is used for the installation of external air pipes for the air flotation block.

[0012] Preferably, a positioning plate is fixedly connected to the bottom inner side of the sub-column, and the edge of the positioning plate is in contact with the inner wall of the sub-column;

[0013] The positioning plate has a circular through hole in the middle, and the positioning post passes through the circular through hole.

[0014] The air flotation block is installed at the bottom of the positioning column. The outer wall of the positioning column is threaded, and an adjusting nut is fitted on its outer side above the positioning plate, and a positioning nut is fitted on its outer side below the positioning plate.

[0015] Preferably, the reinforcing rib has a slot along its length, and the positioning plate has a fixing screw hole at the position directly below each reinforcing rib. The bottom end of the slot of the reinforcing rib is machined with an internal thread corresponding to the fixing screw hole. The positioning plate is fixed to the inner side of the sub-column by screws passing through its fixing screw hole and screwed to the internal thread at the bottom end of the slot of the reinforcing rib.

[0016] Preferably, a rectangular window is provided at the bottom end of the side of the secondary column near the main column, and a window cover plate adapted to its shape is installed inside the rectangular window;

[0017] The side of the window cover plate and the side of the positioning plate are respectively provided with mounting screw holes. The window cover plate and the positioning plate are fixedly connected by inserting screws through the mounting screw holes.

[0018] Preferably, the bottom end of the positioning plate is provided with countersunk grooves corresponding to the positions of each fixing screw hole, and the top two sides of the positioning plate are respectively provided with circular through holes for external air pipes to pass through.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] The integrated sub-column for coordinate measuring machines provided by this utility model features an optimized and reasonable structural design. The sub-column employs an integrated stretching molding process and incorporates integrated reinforcing ribs on the inner wall, simplifying the structure, reducing splicing errors between multiple components, and enhancing overall structural strength and bending resistance, thus preventing deformation over long-term use. The bolted connection between the fixed plate and the X-axis moving beam, along with the detachable installation of the air-bearing blocks, significantly simplifies assembly and subsequent component replacement processes, reducing maintenance costs. With the cooperation of the positioning column, adjusting nut, and positioning nut, the height of the air-bearing blocks can be flexibly adjusted to adapt to different support platforms. Furthermore, the bottom air-bearing blocks effectively reduce frictional resistance during sub-column movement, improving the smoothness of equipment operation. Overall, the sub-column meets the requirements of "convenient assembly, flexible adjustment, and stable reliability," providing strong support for the stable movement of the coordinate measuring machine in the Y-axis direction and ensuring measurement accuracy. Attached Figure Description

[0021] To illustrate the technical solutions in the embodiments of the present invention or the prior art more specifically and intuitively, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0022] Figure 1 This is a schematic diagram of the integrated auxiliary column structure for coordinate measuring machines proposed in this utility model;

[0023] Figure 2 This is a schematic diagram of the mounting structure of the fixing plate proposed in this utility model;

[0024] Figure 3 This is a schematic diagram of the reinforcing rib installation structure proposed in this utility model;

[0025] Figure 4 This is a schematic diagram of the air flotation block installation structure proposed in this utility model;

[0026] Figure 5 This is a schematic diagram of the fixing screw hole opening structure proposed in this utility model;

[0027] Figure 6 This is a schematic diagram of the window cover installation structure proposed in this utility model.

[0028] In the diagram: 1. X-axis moving crossbeam; 2. Main column; 3. Secondary column; 4. Reinforcing rib; 5. Fixing plate; 6. Air flotation block; 7. Air pipe penetration gap; 8. Positioning plate; 9. Positioning column; 10. Adjusting nut; 11. Positioning nut; 12. Fixing screw hole; 13. Mounting screw hole; 14. Window cover plate. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] Reference Figure 1-6 An integrated auxiliary column for coordinate measuring machine includes an X-axis moving crossbeam 1, with a main column 2 and an auxiliary column 3 for moving in the Y-axis direction respectively fixed to the bottom ends of the X-axis moving crossbeam 1 by bolts.

[0031] The secondary column 3 is a rectangular hollow structure that runs vertically through the interior. Two reinforcing ribs 4 are symmetrically spaced along the height direction on both sides of its inner wall, and the reinforcing ribs 4 and the inner wall of the secondary column 3 are integrally formed.

[0032] A fixing plate 5 is welded to the top of the inner side of the secondary column 3. The top surface of the fixing plate 5 is flush with the top surface of the secondary column 3, and the fixing plate 5 is fixedly connected to the bottom surface of the X-axis moving crossbeam 1 by bolts.

[0033] The bottom of the secondary column 3 is detachably equipped with an air flotation block 6.

[0034] Using the above technical solutions, the secondary column 3 adopts a rectangular hollow structure that runs vertically through the column, and is processed by an integral stretching molding process. The integral stretching molding not only ensures that the secondary column 3 has a uniform wall thickness and a dense structure, avoiding the stress concentration problem of weld seams caused by segmented welding, but also greatly improves the overall structural strength and fatigue resistance of the secondary column 3. It also simplifies the production process and reduces assembly errors. At the same time, while the hollow structure reduces its own weight and the overall load of the equipment, the integrally formed reinforcing ribs 4 on both sides of the inner wall can further enhance the bending strength of the secondary column 3 and avoid structural deformation caused by long-term movement. The fixing plate 5 at the top of the inner side is connected to the X-axis moving crossbeam 1 by bolts, which can be directly disassembled and assembled, greatly facilitating the assembly, maintenance and component replacement of the X-axis moving crossbeam 1 and the secondary column 3. The air flotation block 6, which can be detachably installed at the bottom, can be replaced individually without replacing the entire secondary column 3, which significantly reduces the operating cost. At the same time, the presence of the air flotation block 6 can reduce the frictional resistance of the secondary column 3 during movement and improve the smoothness of equipment operation.

[0035] The fixing plate 5 is adapted to the inner top of the sub-column 3, and only one end of the fixing plate 5 has a gap 7 for the air pipe to pass through between it and the corresponding side wall of the inner top of the sub-column 3.

[0036] The air pipe penetration gap 7 is connected to the hollow channel of the auxiliary column 3 and is used for the penetration of the external air pipe of the air flotation block 6.

[0037] By adopting the above technical solution, the fixing plate 5 is adapted to the inner top of the sub-column 3, ensuring that the fixing plate 5 is installed stably; the air pipe passage gap 7 reserved at one end of the fixing plate 5 can directly allow the external air pipe of the air float 6 to pass into the inner side of the sub-column 3, which facilitates the quick connection between the air pipe and the air float 6, while avoiding interference between the air pipe and the inner wall of the sub-column 3 or the fixing plate 5 during the passage, and simplifying the air pipe assembly process.

[0038] A positioning plate 8 is fixedly connected to the bottom inner side of the sub-column 3, and the edge of the positioning plate 8 is in contact with the inner wall of the sub-column 3.

[0039] A circular perforation is provided in the middle of the positioning plate 8, and the positioning post 9 is provided through the circular perforation;

[0040] The air flotation block 6 is installed at the bottom of the positioning column 9. The outer wall of the positioning column 9 is threaded, and an adjusting nut 10 is fitted on its outer side above the positioning plate 8, and a positioning nut 11 is fitted on its outer side below the positioning plate 8.

[0041] Using the above technical solution, the circular perforation in the middle of the positioning plate 8 provides a precise installation channel for the positioning column 9, ensuring that the positioning column 9 penetrates the positioning plate 8 vertically; the air float 6 is installed at the bottom of the positioning column 9, and together with the adjusting nut 10 and the positioning nut 11 on the outside of the positioning column 9, the height of the air float 6 can be finely adjusted by turning the adjusting nut 10, and the position is locked by the positioning nut 11 after adjustment. The relative position of the air float 6 and the platform can be flexibly adjusted according to the actual support platform conditions to adapt to the installation and use requirements under different working conditions.

[0042] The reinforcing rib 4 has a slot along its length. The positioning plate 8 has a fixing screw hole 12 directly below each reinforcing rib 4. The bottom end of the slot of the reinforcing rib 4 is machined with an internal thread corresponding to the fixing screw hole 12. The positioning plate 8 is screwed through the fixing screw hole 12 by screws and screwed to the internal thread at the bottom end of the slot of the reinforcing rib 4 to achieve a fixed connection with the inner side of the sub-column 3.

[0043] Using the above technical solution, the groove of the reinforcing rib 4 corresponds to the fixing screw hole 12 of the positioning plate 8, and the screw passes through the screw hole and is connected to the internal thread of the groove. This can not only firmly fix the positioning plate 8, but also facilitate the subsequent disassembly and assembly of the positioning plate 8 to inspect the internal components of the sub-column 3. At the same time, it disperses the pressure transmitted by the air flotation block 6 and avoids local damage to the positioning plate 8.

[0044] A rectangular window is provided at the bottom of the side of the secondary column 3 near the main column 2, and a window cover plate 14 adapted to its shape is installed inside the rectangular window.

[0045] The side of the window cover plate 14 and the side of the positioning plate 8 are respectively provided with mounting screw holes 13. By inserting screws through the mounting screw holes 13, the window cover plate 14 and the positioning plate 8 can be fixedly connected.

[0046] With the above technical solution, the rectangular window of the sub-column 3 can directly accommodate tools such as wrenches, making it convenient to adjust the position of the adjusting nut 10 and the positioning nut 11 on the positioning column 9, thereby adjusting the height of the air float 6; the window cover 14 is fixed to the positioning plate 8 by screws, which can quickly seal the rectangular window to prevent dust and impurities from entering the interior of the sub-column 3, while protecting the internal components. The disassembly and assembly are convenient and do not affect the overall use of the equipment.

[0047] The bottom of the positioning plate 8 is provided with countersunk grooves corresponding to the positions of each fixing screw hole 12, and the top two sides of the positioning plate 8 are provided with circular through holes for external air pipes to pass through.

[0048] Using the above technical solutions, the countersunk groove at the bottom of the positioning plate 8 can prevent the screw head from protruding from the plane of the positioning plate 8 and prevent interference with related structures; the circular through hole at the top can allow the air pipe introduced from the air pipe passage gap 7 to pass through, and then smoothly connect with the air float block 6, ensuring that the air pipe is arranged neatly and avoiding tangling or jamming.

[0049] Working principle:

[0050] When the integrated auxiliary column of the coordinate measuring machine is in operation, the X-axis moving beam 1 is supported by the main column 2 and the auxiliary column 3 to achieve movement in the Y-axis direction. The auxiliary column 3 is integrally stretched to ensure structural stability, and the inner wall reinforcing rib 4 enhances the bending resistance. The air float 6 is installed at the bottom of the auxiliary column 3 through the positioning column 9. With the help of tools such as wrenches, the air float 6 can be finely adjusted by passing through the rectangular window of the auxiliary column 3 and adjusting the adjusting nut 10 and positioning nut 11 on the positioning column 9 to match the support platform. After adjustment, the window is sealed with the window cover plate 14 to prevent impurities from entering. The external air pipe of the air float 6 enters the inner side of the auxiliary column 3 through the air pipe passage gap 7 of the fixed plate 5, and then passes through the circular through hole of the positioning plate 8 to connect with the air float 6. The positioning plate 8 is detachably fixed by screws and reinforcing rib 4. The overall structure works together to achieve stable movement support and precise height adjustment, ensuring the movement accuracy of the X-axis moving beam 1 and meeting the requirements of coordinate measuring machine.

[0051] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An integrated auxiliary column for coordinate measuring machine, comprising an X-axis movable crossbeam (1), characterized in that, The bottom ends of the X-axis moving crossbeam (1) are respectively fixed with a main column (2) and a secondary column (3) for realizing Y-axis movement by bolts. The sub-column (3) is a rectangular hollow structure that runs vertically through the interior. Two reinforcing ribs (4) are symmetrically spaced along the height direction on both sides of its inner wall. The reinforcing ribs (4) and the inner wall of the sub-column (3) are integrally formed. The inner top of the sub-column (3) is welded with a fixing plate (5), the top surface of the fixing plate (5) is flush with the top surface of the sub-column (3), and the fixing plate (5) is fixedly connected to the bottom surface of the X-axis moving beam (1) by bolts; The bottom end of the sub-column (3) is detachably fitted with an air flotation block (6).

2. The integrated auxiliary column for coordinate measuring machines according to claim 1, characterized in that, The fixing plate (5) is adapted to the inner top of the sub-column (3), and only one end of the fixing plate (5) has a gap (7) for the air pipe to pass through between it and the corresponding side wall of the inner top of the sub-column (3). The air pipe penetration gap (7) is connected to the hollow channel of the auxiliary column (3) and is used for the penetration of the external air pipe of the air flotation block (6).

3. The integrated auxiliary column for coordinate measuring machines according to claim 1, characterized in that, A positioning plate (8) is fixed to the bottom inner side of the sub-column (3), and the edge of the positioning plate (8) is in contact with the inner wall of the sub-column (3); The positioning plate (8) has a circular perforation in the middle, and a positioning post (9) is inserted through the circular perforation. The air flotation block (6) is installed at the bottom of the positioning column (9). The outer wall of the positioning column (9) is threaded, and an adjusting nut (10) is fitted on its outer side above the positioning plate (8), and a positioning nut (11) is fitted on its outer side below the positioning plate (8).

4. The integrated auxiliary column for coordinate measuring machines according to claim 3, characterized in that, The reinforcing rib (4) has a slot along its length. The positioning plate (8) has a fixing screw hole (12) at the position directly below each reinforcing rib (4). The bottom end of the slot of the reinforcing rib (4) is machined with an internal thread corresponding to the fixing screw hole (12). The positioning plate (8) is screwed through its fixing screw hole (12) and screwed to the internal thread at the bottom end of the slot of the reinforcing rib (4) to achieve a fixed connection with the inner side of the sub-column (3).

5. The integrated auxiliary column for coordinate measuring machines according to claim 4, characterized in that, The secondary column (3) has a rectangular window at the bottom of the side closest to the main column (2), and a window cover plate (14) adapted to its shape is installed inside the rectangular window. The window cover (14) has mounting screw holes (13) on its side corresponding to the side of the positioning plate (8). By inserting screws through the mounting screw holes (13), the window cover (14) and the positioning plate (8) are fixedly connected.

6. The integrated auxiliary column for coordinate measuring machines according to claim 4, characterized in that, The bottom end of the positioning plate (8) is provided with countersunk grooves corresponding to the positions of each fixing screw hole (12), and the top two sides of the positioning plate (8) are respectively provided with circular through holes for external air pipes to pass through.

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