Parallelism measurement method and system for gantry machine tool wall

Abstract

The application discloses a gantry machine tool wall parallelism measurement method and system, and the method comprises the following steps: processing a plurality of groups of corresponding measurement surfaces on the two side walls of the gantry machine tool; processing a taper hole on one side of each group of measurement surfaces; adjusting the depth of a half-ball head screw inserted into a hanging pipe and the length of a dial gauge inserted into a connecting rod, so that the total length between the free end of the half-ball head screw and the measurement head of the dial gauge is adapted to the distance between the walls of the gantry machine tool; suspending the measurement system between the two walls of the gantry machine tool; tightly abutting the ball head of the half-ball head screw on the taper hole of the wall measurement surface, repeatedly hitting the corresponding measurement surface on the other side, obtaining the minimum value of the distance between the two measurement surfaces; moving the workshop girder trolley along the wall direction and measuring, obtaining a plurality of minimum value data; obtaining the parallelism data between the walls of the gantry machine tool according to the plurality of minimum value data; and adjusting the corresponding distance between the walls of the gantry machine tool according to the parallelism data until the parallelism requirement is reached.

Description

Technical Field

[0001] This invention belongs to the field of machine tool assembly measurement technology, and more specifically, relates to a method and system for measuring the parallelism of the wall of a gantry machine tool. Background Technology

[0002] A gantry machine tool (or bridge machine tool) is a large, high-precision machine tool primarily used in heavy industry and for machining large parts. A gantry machine tool typically consists of two vertical columns and a top beam connecting them, forming a portal frame structure. Due to its portal frame structure, the gantry machine tool possesses excellent stability and rigidity, making it suitable for withstanding the forces generated during the machining of large workpieces. During the installation of the gantry machine tool's walls / bridge, the parallelism between the walls needs to be measured and adjusted. Since the span between walls in common gantry machines is mostly 2-3 meters, conventional measuring tools and methods are insufficient for measuring their parallelism. Currently, there are two main measurement methods in the industry. One method involves creating a fixture using a worktable as an intermediate carrier, and using the parallelism of the two sides of the worktable to indirectly reflect the parallelism of the walls. This method requires additional fixture fabrication, has high requirements for the parallelism of the two sides of the worktable, and is relatively cumbersome in processing and operation. The second method is to use specialized laser measuring instruments. However, this method has the disadvantages of higher instrument costs and greater susceptibility to temperature, humidity, and light. It also requires more stringent environmental conditions and higher operator skills, and often fails to achieve the desired results in actual use.

[0003] Therefore, there is an urgent need for a simple, low-cost, and easy-to-operate device and method for measuring the parallelism of gantry milling machine walls. Summary of the Invention

[0004] To address the aforementioned deficiencies or improvement needs of existing technologies, this invention provides a method and system for measuring the parallelism of a gantry milling machine wall. The method involves installing a lifting screw on a lifting pipe, and setting an adjustable-length hemispherical head screw and a connecting rod at both ends of the pipe. A dial indicator is mounted on the connecting rod. Several tapered holes adapted to the spherical surface of the hemispherical head screw are machined into one side of the gantry milling machine wall according to the measurement requirements. By rotating the hemispherical head screw, the insertion depth of the hemispherical head screw into the lifting pipe is adjusted, as is the insertion length of the dial indicator into the connecting rod. The total length between the free end of the hemispherical head screw and the measuring head of the dial indicator adapts to the spacing between the gantry milling machine wall sections. The gantry milling machine wall parallelism measuring device is suspended between the two walls of the gantry milling machine to be measured. The ball end of the hemispherical head screw is pressed tightly against one side. On the tapered hole of the measuring surface of the wall, the measuring head of the dial indicator at the other end is repeatedly tapped onto the corresponding measuring surface of the other side of the wall to obtain parallelism data between the walls of the gantry milling machine. The distance between the walls is adjusted according to this parallelism data until the parallelism requirement is met. Furthermore, during the measurement process, it is crucial to ensure that the hemispherical head screw and connecting rod are not shaken, and the suspension joint on the hanging pipe is not moved, so that the suspension state of the gantry milling machine wall parallelism measuring device remains essentially unchanged, thus avoiding the influence of deformation of the extended indicator rod on the measurement results. This invention reduces measurement errors caused by movement or improper contact through the suspension measurement method, improving measurement stability. This invention is simple to operate, efficient, requires minimal skill from the user environment and operators, and is low in cost.

[0005] To achieve the above objectives, one aspect of the present invention provides a method for measuring the parallelism of a gantry milling machine wall, implemented using a gantry milling machine wall parallelism measuring device, comprising the following steps:

[0006] S1: Machining several sets of corresponding measuring surfaces on both sides of the gantry machine tool; machining a tapered hole on one side of each set of measuring surfaces that matches the ball head of the upper hemispherical screw of the parallelism measuring device of the gantry machine tool wall.

[0007] S2: Assemble all components of the gantry milling machine wall parallelism measuring device; rotate the hemispherical head screw, adjust the depth of the hemispherical head screw inserted into the hanging pipe, and lock it; adjust the length of the dial indicator inserted into the connecting rod so that the total length between the free end of the hemispherical head screw and the measuring head of the dial indicator is adapted to the distance between the gantry milling machine wall, and lock the dial indicator and the connecting rod.

[0008] S3: The lifting device for measuring the parallelism of the gantry machine tool wall is suspended between the two walls of the gantry machine tool to be measured by hooking the lifting screw on the lifting pipe with the hook of the workshop gantry trolley and lifting it.

[0009] S4: Place the ball head of the hemispherical screw tightly against the wall measuring surface with the conical hole, and repeatedly tap the measuring head of the dial indicator against the corresponding measuring surface on the other side to obtain the minimum value of the distance between the two measuring surfaces.

[0010] S5: Move the gantry crane along the wall direction for 700-1000mm, repeat step S4 to obtain several sets of minimum value data; subtract the maximum and minimum values ​​from all the minimum value data to obtain the parallelism data between the gantry machine tool and the wall.

[0011] S6: Adjust the corresponding distance between the walls of the gantry machine tool according to the parallelism data between the walls of the gantry machine tool, and repeat steps S4 to S5 until the parallelism requirement is met;

[0012] The gantry milling machine wall parallelism measuring device includes a lifting tube, a hemispherical head screw with adjustable depth at one end of the lifting tube, a connecting rod at the other end of the lifting tube, and a dial indicator at the end of the connecting rod away from the lifting tube; a plurality of tapered holes adapted to the ball head of the hemispherical head screw are machined on the measuring surface of one side wall of the gantry milling machine; and lifting screws are provided on the lifting tube.

[0013] Furthermore, the hanging pipe includes a hollow pipe, a suspension joint disposed outside the hollow pipe, a first plug disposed at one end of the hollow pipe, and a second plug disposed at the other end of the hollow pipe.

[0014] Furthermore, the suspension joint is provided with mounting holes for installing lifting screws; the lifting screws are installed in the mounting holes.

[0015] Furthermore, the hemispherical head screw is disposed inside the first plug; the connecting rod is disposed inside the second plug.

[0016] Furthermore, the center points of the suspension joint and the hollow tube coincide.

[0017] Furthermore, the first plug is equipped with a first threaded hole that matches the end of the hemispherical screw; the hemispherical screw is installed at the left end of the hanging pipe through the first threaded hole.

[0018] Furthermore, the second plug is equipped with a stop and a second threaded hole that match the end of the connecting rod; the connecting rod is installed at the right end of the lifting pipe through the stop and the second threaded hole.

[0019] Furthermore, a hexagonal nut and a spring washer are provided between the hemispherical head screw and the hanging tube.

[0020] Furthermore, the connecting rod is equipped with a butterfly locking screw.

[0021] A second aspect of the present invention provides a parallelism measurement system for a gantry milling machine wall, used to implement the aforementioned method for measuring the parallelism of a gantry milling machine wall, comprising a first main module, a second main module, a third main module, a fourth main module, a fifth main module, and a sixth main module; wherein,

[0022] The first main module is used to control the machining module to machine several sets of corresponding measuring surfaces on the two side walls of the gantry machine tool; and to machine a tapered hole on one side of each set of measuring surfaces that matches the ball head of the upper hemispherical screw of the parallelism measuring device of the gantry machine tool wall.

[0023] The second main module is used to adjust the depth of the hemispherical head screw inserted into the lifting pipe and to adjust the length of the dial indicator insertion rod, so that the total length between the free end of the hemispherical head screw and the measuring head of the dial indicator is adapted to the distance between the gantry machine tool wall.

[0024] The third main module is used to control the workshop gantry crane to suspend the parallelism measuring device of the gantry machine tool wall between the two walls of the gantry machine tool to be measured;

[0025] The fourth main module is used to control the ball head of the hemispherical screw to be in close contact with the wall measuring surface with the conical hole, and to repeatedly tap the measuring head of the dial indicator on the corresponding measuring surface on the other side to obtain the minimum value of the distance between the two measuring surfaces.

[0026] The fifth main module is used to control the workshop gantry crane to move along the wall direction for 700-1000mm, repeating the operation of the fourth main module to obtain several sets of minimum value data; the difference between the maximum and minimum values ​​in all the minimum value data is used to obtain the parallelism data between the gantry machine tool and the wall.

[0027] The sixth main module is used to adjust the corresponding distance between the walls of the gantry machine tool according to the parallelism data between the walls, and repeat the operations of the fourth and fifth main modules until the parallelism requirement is met.

[0028] In summary, compared with the prior art, the above-described technical solutions conceived by this invention can achieve the following beneficial effects:

[0029] (1) The method and system for measuring the parallelism of the wall of a gantry milling machine according to the present invention simplifies the measurement process by using an extended dial indicator rod, eliminating the need for complex tooling or equipment, making the measurement work more direct and easier to operate; several tapered holes adapted to the spherical surface of the hemispherical head screw are machined on one side wall of the gantry milling machine according to measurement needs, and the positions of the hemispherical head screw and the dial indicator are precisely adjusted. Utilizing the principle that the length of the right-angled side of a right triangle is less than the length of the hypotenuse, the measurement accuracy is improved, ensuring that the parallelism between the walls reaches 0.02 to 0.05 mm; the present invention does not depend on external environmental conditions such as temperature, humidity, and light, thus maintaining stable measurement performance under different working environments; operators Even those with limited skills can quickly master the method, reducing the skill requirements for operators. The extended gauge rod, using a suspension method, reduces measurement errors caused by movement or improper contact, improving measurement stability. The tools and methods in this solution have good versatility and can adapt to the measurement of gantry milling machine wall sections of different sizes and specifications. Through standardized measurement procedures and locking mechanisms, human error is reduced, improving the reliability of measurement results. Compared with traditional measurement methods, this solution can significantly reduce measurement time and improve work efficiency. This invention solves the tedious and complex engineering problem of parallelism measurement of common span gantry milling machine wall sections through a simple, efficient, and low-cost measurement method.

[0030] (2) The parallelism measurement method and system for the wall of the gantry milling machine of the present invention has several tapered holes that are adapted to the spherical surface of the hemispherical head screw processed on one side wall of the gantry milling machine according to the measurement needs. On the one hand, it is convenient to fix the hemispherical head screw during measurement; on the other hand, it can ensure that the measurement starting point on the left side is always a fixed point, that is, the center of the hemispherical head screw. By ensuring that the measurement starting point is always fixed at the center of the hemispherical head screw, the error caused by the screw swing is reduced, thereby improving the accuracy of measurement. The use of tapered holes and hemispherical head screw provides a stable contact point, which enhances the stability of the measurement process and simplifies the preparation work before measurement. Due to the fixedness of the measurement starting point, the conditions of each measurement are consistent, thereby improving the repeatability of the measurement results. It can be applied to a variety of occasions that require high-precision measurement. The stable contact point reduces the wear of equipment caused by improper operation during the measurement process. Accurate measurement can reduce rework and errors, thereby improving the overall efficiency. Through ingenious design, the present invention solves the problems of poor measurement accuracy and cumbersome operation in traditional measurement methods, and provides effective technical support for improving measurement quality and efficiency. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the installation structure of a gantry milling machine wall parallelism measuring device between the walls of a gantry milling machine according to an embodiment of the present invention;

[0032] Figure 2This is a partially enlarged schematic diagram of the contact area between the ball head of the hemispherical screw and the conical surface of the conical hole on the measuring surface in a gantry milling machine wall parallelism measuring device according to an embodiment of the present invention;

[0033] Figure 3 This is a schematic diagram of the position of the measurement starting point (the measurement starting point is the center of the ball head of the hemispherical screw) when the hemispherical screw is perpendicular to the measurement surface in a gantry milling machine wall parallelism measuring device according to an embodiment of the present invention.

[0034] Figure 4 This is a schematic diagram of the position of the measurement starting point (the measurement starting point is the center of the ball head of the hemispherical screw) when the hemispherical screw rotates in the conical hole on the measuring surface in a gantry milling machine wall parallelism measuring device according to an embodiment of the present invention.

[0035] Figure 5 This is a schematic diagram showing the position of the measurement starting point when the hemispherical head screw is perpendicular to the plane measurement surface in a gantry milling machine wall parallelism measuring device according to an embodiment of the present invention;

[0036] Figure 6 This is a schematic diagram showing the position of the measurement starting point when the hemispherical head screw moves on the plane measurement surface in a gantry milling machine wall parallelism measuring device according to an embodiment of the present invention;

[0037] Figure 7 This is a schematic diagram of the structure of a gantry milling machine wall parallelism measuring device according to an embodiment of the present invention;

[0038] Figure 8 This is a schematic diagram of the structure of the hanging pipe of a gantry milling machine wall parallelism measuring device according to an embodiment of the present invention;

[0039] Figure 9 This is a flowchart illustrating a method for measuring the parallelism of a gantry milling machine wall according to an embodiment of the present invention.

[0040] Figure 10 This is a schematic diagram illustrating the measurement principle of a method for measuring the parallelism of a gantry milling machine wall according to an embodiment of the present invention;

[0041] Figure 11 This is a schematic diagram of the structure of a gantry milling machine wall parallelism measurement system according to an embodiment of the present invention;

[0042] Figure 12 This is a schematic diagram of the structure of an electronic device according to an embodiment of the present invention.

[0043] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 100-first wall, 200-second wall, 300-lifting rope, 400-conical hole, 1-lifting pipe, 11-hollow pipe, 12-suspension joint, 13-first plug, 14-second plug, 2-hemispherical head screw, 21-hexagonal nut, 22-spring washer, 3-connecting rod, 31-wing locking screw, 4-dial indicator, 5-lifting screw. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0045] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, when an element is referred to as "fixed to," "set on," or "provided on" another element, it can be directly on or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to or indirectly connected to the other element. The terms "mounted," "connected," "linked," and "provided with" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0046] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0047] In the description of this invention, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0048] like Figure 1 As shown, one aspect of the present invention provides a parallelism measuring device for the walls of a gantry milling machine, installed between the first wall 100 and the second wall 200 of the gantry milling machine, for measuring the parallelism of the left and right walls of the gantry milling machine. The device includes a lifting tube 1, a hemispherical head screw 2 disposed inside one end of the lifting tube 1, a connecting rod 3 disposed inside the other end of the lifting tube 1, and a dial indicator 4 disposed at the end of the connecting rod 3 away from the lifting tube 1. The lifting tube 1 is provided with lifting screws 5. The depth of the hemispherical head screw 2 inside the lifting tube 1 is adjustable. The depth of the connecting rod 3 inside the lifting tube 1 is also adjustable. A plurality of tapered holes 400 adapted to the ball heads of the hemispherical head screw 2 are machined on the measuring surface of one side wall of the gantry milling machine. By rotating the hemispherical head screw 2, the depth of the hemispherical head screw 2 inserted into the lifting tube 1 is adjusted and locked. The length of the dial indicator 4 inserted into the connecting rod 3 is adjusted so that the hemispherical head screw 2... The total length between the free end and the measuring head of the dial indicator 4 is adapted to the wall spacing of the gantry milling machine. The lifting screw 5 is hooked onto the hoisting rope 300 on the workshop gantry trolley and lifted, suspending the gantry milling machine wall parallelism measuring device between the two walls of the gantry milling machine to be measured. The ball end of the hemispherical screw 2 is pressed tightly against the conical hole on the first measuring surface 101 of the first wall, and the measuring head of the other end of the dial indicator 4 is repeatedly struck on the corresponding second measuring surface 102 on the second wall. The minimum value between the first measuring surface 101 and the second measuring surface 102 is recorded. Every 700-1000mm along the wall direction of the workshop gantry trolley, several sets of minimum value data are obtained using the same method. The difference between the maximum and minimum values ​​in all the minimum value data is used to obtain the parallelism data between the walls of the gantry milling machine. The corresponding distance between the walls is adjusted according to the parallelism data between the walls of the gantry milling machine, and the above process is repeated until the parallelism requirement is met. By measuring and adjusting according to the above methods, the parallelism between the walls of the gantry milling machine can be guaranteed to be within 0.02 to 0.05 mm.

[0049] Furthermore, such as Figures 2-6As shown, when the spherical surface of the hemispherical screw 2 contacts the conical surface of the conical hole 400, the left measurement starting point remains a fixed point, i.e., the center of the hemispherical screw 2, as the hemispherical screw 2 swings during measurement. When the spherical surface of the hemispherical screw 2 contacts a plane, the left measurement starting point will change with the swing of the hemispherical screw 2 due to the lack of conical matching, affecting the measurement accuracy. This invention processes several conical holes on one side wall of the gantry milling machine according to measurement needs, so that the conical surface of the conical hole contacts the spherical surface of the hemispherical screw 2. This facilitates fixing the hemispherical screw 2 during measurement and ensures that the left measurement starting point remains a fixed point, i.e., the center of the hemispherical screw 2. By ensuring that the measurement starting point is always fixed at the center of the hemispherical screw 2, errors caused by screw swing are reduced, thereby improving measurement accuracy. The fit between the hole 400 and the ball head of the hemispherical screw 2 provides a stable contact point, enhancing stability during the measurement process. The conical hole 400 machined on one side wall of the gantry milling machine allows for easy fixing of the hemispherical screw 2 during measurement, simplifying pre-measurement preparation. Due to the fixed measurement starting point, the conditions remain consistent for each measurement, improving the repeatability of the results. It is applicable to various applications requiring high-precision measurement, especially in machining and precision engineering. The stable contact point reduces equipment wear caused by improper operation during measurement. Accurate measurement reduces rework and errors, thereby improving overall measurement efficiency. This invention, through its ingenious design, solves potential problems in traditional measurement methods, providing effective technical support for improving measurement quality and efficiency.

[0050] Furthermore, such as Figure 7 and Figure 8As shown, the lifting pipe 1 includes a hollow pipe 11, a suspension joint 12 located outside the hollow pipe 11, a first plug 13 located at one end of the hollow pipe 11, and a second plug 14 located at the other end of the hollow pipe 11. The suspension joint 12 has a mounting hole for installing a lifting screw 5. The lifting screw 5 is installed in the mounting hole. The design of the lifting screw 5 and the suspension joint 12 ensures the safety of the lifting pipe during the lifting process and prevents accidental detachment. The hemispherical head screw 2 is located inside the first plug 13. The connecting rod 3 is located inside the second plug 14. The design of the hemispherical head screw 2 and the connecting rod 3 allows for flexible adjustment of the position and angle of the lifting pipe 1 to adapt to different usage requirements. The hollow pipe 11 passes through the suspension joint 12. The suspension joint 12 and the hollow pipe 12... The center points of pipe 11 coincide, ensuring the symmetry and stability of the structure; the first plug 13 is equipped with a first threaded hole that matches the end of the hemispherical screw 2; the hemispherical screw 2 is installed on the left end of the hanging pipe 1 through the first threaded hole; the second plug 14 is equipped with a stop and a second threaded hole that matches the end of the connecting rod 3; the connecting rod 3 is installed on the right end of the hanging pipe 1 through the stop and the second threaded hole; by using the design of the plug and the threaded hole, the durability of the hanging pipe structure is enhanced, and wear caused by frequent use is reduced; the present invention can achieve stable suspension and precise adjustment of the hanging pipe 1 through precise thread fit and structural design; through standardized components and simplified measurement process, measurement and maintenance costs may be reduced; and through precise and flexible adjustment, measurement efficiency is improved.

[0051] Furthermore, such as Figure 7 and Figure 8 As shown, a hexagonal nut 21 and a spring washer 22 are provided between the hemispherical screw 2 and the lifting tube 1 to adjust the depth of the hemispherical screw 2 in the lifting tube 1 and to lock the hemispherical screw 2 and the lifting tube 1 together; a wing-shaped locking screw 31 is provided on the connecting rod 3 to adjust the depth of the dial indicator 4 in the connecting rod 3 and then lock the dial indicator 4 to the connecting rod 3; the use of the hexagonal nut 21, the spring washer 22 and the wing-shaped locking screw 31 ensures that the hemispherical screw 2 and the connecting rod 3 are securely positioned within the lifting tube 1. The fixed position prevents displacement due to vibration or load changes; the spring washer 22 acts as a shock absorber during locking, reducing damage to the connection parts caused by impact or vibration; the design of the hexagonal nut 21 and the wing locking screw 31 makes the adjustment process simple and quick, allowing the operator to quickly complete the adjustment and locking; the standardized design of the locking mechanism ensures repeatability after each adjustment, helping to improve the accuracy of measurement or positioning; this design allows for use with various specifications of hanging pipes 1 and connecting rods 3, improving the versatility of the design.

[0052] like Figure 9As shown, an embodiment of the present invention also provides a method for measuring the parallelism of the wall of a gantry milling machine, comprising the following steps:

[0053] S1: Machining several sets of corresponding measuring surfaces on both sides of the gantry machine tool; machining a tapered hole on one side of each set of measuring surfaces that matches the ball head of the upper hemispherical screw 2 of the parallelism measuring device of the gantry machine tool wall.

[0054] S2: Assemble all components of the gantry milling machine wall parallelism measuring device; rotate the hemispherical head screw 2, adjust the depth of the hemispherical head screw 2 inserted into the hanging pipe 1, and lock it with the hexagonal nut 21; adjust the length of the dial indicator 4 inserted into the connecting rod 3 so that the total length between the free end of the hemispherical head screw 2 and the measuring head of the dial indicator 4 matches the distance of the gantry milling machine wall, and lock the dial indicator 4 and the connecting rod 3 with the butterfly locking screw 31;

[0055] S3: The lifting screw 5 on the lifting pipe 1 is hooked by the workshop gantry crane and lifted, so that the parallelism measuring device of the gantry machine tool wall is suspended between the two walls of the gantry machine tool to be measured;

[0056] S4: Press the ball head of the hemispherical screw 2 against the wall measuring surface with the conical hole to ensure that the ball head is in close contact with the measuring surface; repeatedly tap the corresponding measuring surface on the other side with the measuring head of the dial indicator 4. Based on the principle that the length of the right-angled side of a right triangle is less than the length of the hypotenuse, obtain the minimum value of the distance between the two measuring surfaces.

[0057] S5: Move the gantry crane along the wall direction for 700-1000mm, repeat step S4 to obtain several sets of minimum value data; subtract the maximum and minimum values ​​from all the minimum value data to obtain the parallelism data between the gantry machine tool and the wall.

[0058] S6: Adjust the corresponding distance between the walls of the gantry machine tool according to the parallelism data between the walls, and repeat steps S4 to S5 until the parallelism requirement is met.

[0059] Further, in step S4, during measurement, the ball head of the hemispherical screw 2 is pressed tightly against the wall measuring surface with the machined tapered hole 400, ensuring close contact between the ball head and the measuring surface; the dial indicator 4 is installed at one end of the connecting rod 3, and its depth is adjusted using the butterfly locking screw 31 to ensure contact between the measuring head and the corresponding machined measuring surface on the other side; the measuring head of the dial indicator 4 is repeatedly struck against the measuring surface on the other side, and the data of each measurement is recorded; by pressing the ball head of the hemispherical screw 2 and the measuring head of the dial indicator 4 tightly against the two machined measuring surfaces respectively, a right-angled triangle can be formed; such as Figure 10As shown, during the measurement process, the measuring point O between the left hemispherical head screw 2 and the conical hole 400 is a fixed point. Several measuring points will be generated between the dial indicator head on the right and the right measuring surface, such as the first measuring point A, the second measuring point B, and the third measuring point C. Because the length of the right-angled side is always less than the length of the hypotenuse, the minimum distance between the two measuring surfaces can be obtained through this method. That is, the shortest distance between the fixed point and the measuring point is the length of the right-angled side, i.e., the length of OB. This invention utilizes geometric principles to accurately determine the minimum distance between the two measuring surfaces, thereby improving measurement accuracy. Through repeated measurements, random errors can be reduced, and the reliability of the measurement results can be improved. The adjustability of the hemispherical head screw 2 and the dial indicator 4 makes this method applicable to measuring surfaces of different sizes and shapes. The measurement method of this invention combines mechanical design and geometric principles, providing an economical, efficient, and accurate measurement solution, especially suitable for industrial applications requiring high-precision measurement, and is very compatible with the parallelism measurement of the gantry milling machine wall of this invention.

[0060] This invention ensures that the hemispherical head screw 2 and connecting rod 6 cannot be shaken during the measurement process, and the suspension joint 12 cannot be moved, so that the suspension state of the extended gauge rod remains basically unchanged, thus avoiding the influence of the deformation of the extended gauge rod on the measurement results. By measuring and adjusting according to the above method, the parallelism between the walls of the gantry milling machine can be guaranteed to be within 0.02 to 0.05 mm. In a specific embodiment of this invention, multiple sets of measuring surfaces are machined at several symmetrical positions on the two walls according to the wall length, and a conical hole is machined on one of the measuring surfaces of each set of measuring surfaces. This reduces the area of ​​the measuring points and also significantly reduces the measurement time. The gantry milling machine wall parallelism measuring device of this invention has a simple structure, low requirements for the operating environment and operator skills, is easy to operate, and is inexpensive.

[0061] This invention provides a method for measuring the parallelism of walls on a gantry milling machine. By using an extended dial indicator rod, the measurement process is simplified. Through precise adjustment of the hemispherical screw and the dial indicator's position, and by utilizing the principle that the shortest distance between two points is a straight line, the measurement accuracy is improved, ensuring a parallelism of 0.02–0.05 mm between walls. This invention is independent of external environmental conditions such as temperature, humidity, and light, thus maintaining stable measurement performance under different working environments. Even operators with limited skills can quickly master the method, reducing the skill requirements. The extended dial indicator rod is suspended during measurement, minimizing the impact of movement or contact. This invention reduces measurement errors and improves measurement stability. By machining several tapered holes in one side wall of the gantry milling machine according to measurement needs, the tapered surfaces of the holes contact the spherical surface of the hemispherical head screw 2, enhancing the stability and accuracy of the measurement process. This invention can adapt to the measurement of gantry milling machine walls of different sizes and specifications. Through standardized measurement procedures and locking mechanisms, human error is reduced, and the reliability of measurement results is improved. Compared with traditional measurement methods, this invention can significantly reduce measurement time and improve work efficiency. This invention solves the tedious and complex engineering problem of parallelism measurement of common span gantry milling machine walls through a simple, efficient, and low-cost measurement method.

[0062] like Figure 11 As shown, a second aspect of the present invention provides a gantry milling machine wall parallelism measurement system, characterized in that, for implementing the gantry milling machine wall parallelism measurement method, it includes a first main module, a second main module, a third main module, a fourth main module, a fifth main module, and a sixth main module; wherein,

[0063] The first main module is used to control the machining module to machine several sets of corresponding measuring surfaces on the two side walls of the gantry machine tool; and to machine a tapered hole 400 on one side of each set of measuring surfaces that matches the ball head of the upper hemispherical screw 2 of the parallelism measuring device of the gantry machine tool wall.

[0064] The second main module is used to adjust the depth of the hemispherical head screw 2 inserted into the hanging pipe 1 and the length of the dial indicator 4 inserted into the connecting rod 3, so that the total length between the free end of the hemispherical head screw 2 and the measuring head of the dial indicator 4 is adapted to the distance between the gantry machine tool wall.

[0065] The third main module is used to control the workshop gantry crane to suspend the parallelism measuring device of the gantry machine tool wall between the two walls of the gantry machine tool to be measured;

[0066] The fourth main module is used to control the ball head of the hemispherical screw 2 to be in close contact with the wall measuring surface with the conical hole 400, and to repeatedly hit the corresponding measuring surface on the other side with the measuring head of the dial indicator 4 to obtain the minimum value of the distance between the two measuring surfaces.

[0067] The fifth main module is used to control the workshop gantry crane to move along the wall direction for 700-1000mm, repeating the operation of the fourth main module to obtain several sets of minimum value data; the difference between the maximum and minimum values ​​in all the minimum value data is used to obtain the parallelism data between the gantry machine tool and the wall.

[0068] The sixth main module is used to adjust the corresponding distance between the walls of the gantry machine tool according to the parallelism data between the walls, and repeat the operations of the fourth and fifth main modules until the parallelism requirement is met.

[0069] It should be noted that the gantry milling machine wall parallelism measurement system provided in this embodiment can be a computer program (including program code) running on a computer device, such as an application software; the gantry milling machine wall parallelism measurement system can be used to execute the corresponding steps in the above-described method provided in this application embodiment.

[0070] In some feasible implementations, the gantry milling machine wall parallelism measurement system provided in this embodiment can be implemented using a combination of hardware and software. As an example, the gantry milling machine wall parallelism measurement system provided in this application embodiment can be a processor in the form of a hardware decoding processor, which is programmed to execute the gantry milling machine wall parallelism measurement method provided in this application embodiment. For example, the processor in the form of a hardware decoding processor can adopt one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), programmable logic devices (PLDs), complex programmable logic devices (CPLDs), field-programmable gate arrays (FPGAs), or other electronic components.

[0071] In some feasible implementations, the gantry milling machine wall parallelism measurement system provided in this embodiment can be implemented in software, which can be software in the form of programs and plug-ins, and includes a series of modules to implement the gantry milling machine wall parallelism measurement method provided in this embodiment of the invention.

[0072] The gantry milling machine wall parallelism measurement system provided in this embodiment involves controlling the machining module to process several sets of corresponding measuring surfaces on both sides of the gantry milling machine; machining a tapered hole on one side of each measuring surface that matches the ball head of the hemispherical screw on the gantry milling machine wall parallelism measurement device; adjusting the depth of the hemispherical screw inserted into the lifting tube and adjusting the length of the dial indicator inserted into the connecting rod so that the total length between the free end of the hemispherical screw and the measuring head of the dial indicator matches the distance between the gantry milling machine wall; controlling the workshop gantry crane to suspend the gantry milling machine wall parallelism measurement device between the two walls of the gantry milling machine to be measured; and controlling the ball head of the hemispherical screw to be in close contact with the wall with the tapered hole for measurement. On the surface, the measuring head of the dial indicator is repeatedly tapped on the corresponding measured surface on the other side to obtain the minimum value of the distance between the two measured surfaces; the workshop gantry crane is controlled to move along the wall direction for 700-1000mm, and the operation of the fourth main module is repeated to obtain several sets of minimum value data; the difference between the maximum and minimum values ​​in all the minimum value data is used to obtain the parallelism data between the walls of the gantry machine tool; the corresponding distance between the walls of the gantry machine tool is adjusted according to the parallelism data between the walls of the gantry machine tool, and the operation of the fourth and fifth main modules is repeated until the parallelism requirement is met; the cumbersome and complex engineering problem of measuring the parallelism of the walls of common span gantry machine tools is solved through a simple, efficient and low-cost measurement method.

[0073] Embodiments of the present invention also provide an electronic device, Figure 12 This is a schematic diagram of the electronic device in this embodiment, as shown below. Figure 12 As shown, the electronic device 1000 in this embodiment may include: a processor 1001, a network interface 1004, and a memory 1005. Furthermore, the electronic device 1000 may also include: a user interface 1003, and at least one communication bus 1002. The communication bus 1002 is used to implement communication between these components. The user interface 1003 may include a display screen and a keyboard; optionally, the user interface 1003 may also include a standard wired interface or a wireless interface. The network interface 1004 may optionally include a standard wired interface or a wireless interface (such as a Wi-Fi interface). The memory 1004 may be a high-speed RAM or non-volatile memory, such as at least one disk storage device. The memory 1005 may optionally be at least one storage device located remotely from the processor 1001. Figure 12 As shown, the memory 1005, which is a computer-readable storage medium, may include an operating system, a network communication module, a user interface module, and a device control application.

[0074] like Figure 12In the illustrated electronic device 1000, the network interface 1004 provides network communication functionality; the user interface 1003 primarily provides an input interface for the user; and the processor 1001 can be used to call the device control application stored in the memory 1005 to achieve:

[0075] The control machining module processes several sets of corresponding measuring surfaces on both sides of the gantry milling machine; and processes a tapered hole 400 on one side of each measuring surface that matches the ball head of the upper hemispherical screw 2 of the parallelism measuring device of the gantry milling machine wall.

[0076] Adjust the depth of the hemispherical screw 2 inserted into the lifting pipe 1 and adjust the length of the dial indicator 4 inserted into the connecting rod 3 so that the total length between the free end of the hemispherical screw 2 and the measuring head of the dial indicator 4 is adapted to the distance between the gantry machine tool wall.

[0077] The control workshop gantry crane suspends the parallelism measuring device of the gantry machine tool wall between the two walls of the gantry machine tool to be measured;

[0078] The ball head of the hemispherical screw 2 is controlled to be in close contact with the wall measuring surface with the conical hole 400. The measuring head of the dial indicator 4 is repeatedly struck on the corresponding measuring surface on the other side to obtain the minimum value of the distance between the two measuring surfaces.

[0079] Every 700-1000mm along the wall direction, the operation of the fourth main module is repeated to obtain several sets of minimum value data; the difference between the maximum and minimum values ​​in all the minimum value data is used to obtain the parallelism data between the gantry machine tool and the wall.

[0080] Adjust the corresponding distance between the walls of the gantry milling machine according to the parallelism data between the walls, and repeat the operations of the fourth and fifth main modules until the parallelism requirement is met.

[0081] It should be understood that in some feasible implementations, the processor 1001 described above may be a central processing unit (CPU), which may also be other general-purpose processors, DSPs, ASICs, FPGAs, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor. The memory may include read-only memory and random access memory, and provides instructions and data to the processor. A portion of the memory may also include non-volatile random access memory. For example, the memory may also store device type information.

[0082] In specific implementation, the aforementioned electronic device 1000 can perform the above-described actions through its built-in functional modules. Figure 9The implementation methods provided for each step are detailed in the above-mentioned implementation methods, and will not be repeated here.

[0083] The electronic device provided in this embodiment processes several sets of corresponding measuring surfaces on the two side walls of a gantry milling machine through a control processing module; a tapered hole adapted to the ball head of the hemispherical screw on one side of each measuring surface is processed; the depth of the hemispherical screw inserted into the lifting tube and the length of the dial indicator insertion rod are adjusted so that the total length between the free end of the hemispherical screw and the measuring head of the dial indicator is adapted to the distance between the walls of the gantry milling machine; the workshop gantry crane is controlled to suspend the gantry milling machine wall parallelism measuring device between the two walls of the gantry milling machine to be measured; the ball head of the hemispherical screw is controlled to be tightly attached to the measuring surface of the wall with the tapered hole, and the control is performed. The dial indicator's measuring head repeatedly strikes the corresponding machined measuring surface on the other side to obtain the minimum distance between the two measuring surfaces. The workshop gantry crane is controlled to move 700-1000mm along the wall direction, and the operation of the fourth main module is repeated to obtain several sets of minimum value data. The difference between the maximum and minimum values ​​in all the minimum value data is used to obtain the parallelism data between the gantry machine tool walls. Based on the parallelism data between the gantry machine tool walls, the corresponding distance between the gantry machine tool walls is adjusted, and the operations of the fourth and fifth main modules are repeated until the parallelism requirement is met. This simple, efficient, and low-cost measurement method solves the tedious and complex engineering problem of measuring the parallelism of common span gantry machine tool walls.

[0084] This application also provides a computer-readable storage medium storing a computer program that is executed by a processor to implement... Figure 9 The methods provided in each step are detailed in the implementation methods provided in the above steps, and will not be repeated here.

[0085] The computer-readable storage medium provided in this embodiment processes several sets of corresponding measuring surfaces on the two side walls of a gantry milling machine through a control processing module; a tapered hole adapted to the ball head of the hemispherical screw of the gantry milling machine wall parallelism measuring device is processed on one side of each set of measuring surfaces; the depth of the hemispherical screw inserted into the lifting tube and the length of the dial indicator insertion rod are adjusted so that the total length between the free end of the hemispherical screw and the measuring head of the dial indicator is adapted to the distance between the gantry milling machine wall; the workshop gantry crane is controlled to suspend the gantry milling machine wall parallelism measuring device between the two walls of the gantry milling machine to be measured; the ball head of the hemispherical screw is controlled to be tightly attached to the wall measuring surface with the tapered hole. The dial indicator's measuring head is repeatedly struck on the corresponding pre-machined measuring surface on the other side to obtain the minimum distance between the two measuring surfaces. The workshop gantry crane is moved along the wall direction by 700-1000mm, and the operation of the fourth main module is repeated to obtain several sets of minimum value data. The difference between the maximum and minimum values ​​in all the minimum value data is used to obtain the parallelism data between the gantry machine tool walls. Based on the parallelism data, the corresponding distance between the gantry machine tool walls is adjusted, and the operations of the fourth and fifth main modules are repeated until the parallelism requirement is met. This simple, efficient, and low-cost measurement method solves the tedious and complex engineering problem of measuring the parallelism of common span gantry machine tool walls.

[0086] Any references to memory, storage, database, or other media used in the embodiments provided in this application may include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), RAMbus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and RAMbus dynamic RAM (RDRAM), etc.

[0087] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for measuring the parallelism of the wall of a gantry milling machine, characterized in that, The parallelism measurement device for the wall of a gantry milling machine is used to achieve this, including the following steps: S1: Several sets of symmetrical and precision-matched measuring surfaces are machined on the two side walls of the gantry machine tool; a tapered hole (400) is machined on one side of each set of measuring surfaces to precisely fit the ball head of the hemispherical screw (2) on the parallelism measuring device of the gantry machine tool wall. The taper of the tapered hole (400) matches the curvature of the ball head of the hemispherical screw (2) to ensure that the center of the ball is fixed during the measurement process. S2: Assemble all the components of the gantry milling machine wall parallelism measuring device; rotate the hemispherical head screw (2) to adjust the depth of the hemispherical head screw (2) inserted into the hanging pipe (1), and lock it with the hexagonal nut (21) and spring washer (22) to prevent the depth from shifting during the measurement process; adjust the length of the dial indicator (4) inserted into the connecting rod (3) so that the total length between the free end of the hemispherical head screw (2) and the measuring head of the dial indicator (4) matches the distance between the gantry milling machine wall, and lock the dial indicator (4) and the connecting rod (3) with the butterfly locking screw (31) on the connecting rod (3) to ensure a stable connection; S3: The parallelism measuring device of the gantry machine tool wall is suspended between the two walls of the gantry machine tool to be measured by the workshop gantry trolley. The suspension joint (12) of the suspension pipe (1) coincides with the center point of the hollow pipe (11) to ensure the force balance of the measuring device under the suspension state and avoid shaking during the measurement process. S4: The ball head of the hemispherical screw (2) is pressed against the wall measuring surface with the conical hole (400) processed. The measuring starting point is fixed by the matching structure of the conical hole and the ball head. The measuring head of the dial indicator (4) is repeatedly hit on the corresponding measuring surface processed on the other side. Based on the principle that the right side of a right triangle is the shortest, the minimum value of the distance between the two measuring surfaces is accurately obtained. S5: Move the gantry crane along the wall direction for 700-1000mm, repeat step S4 to obtain several sets of minimum value data; subtract the maximum and minimum values ​​from all the minimum value data to obtain the parallelism data between the gantry machine tool walls, and achieve quantitative evaluation of parallelism through the difference analysis of multiple sets of data. S6: Adjust the corresponding distance between the walls of the gantry machine tool according to the parallelism data between the walls of the gantry machine tool, and repeat steps S4 to S5 until the parallelism requirement is met; The parallelism measuring device for the wall of the gantry milling machine includes a lifting tube (1), a hemispherical head screw (2) with adjustable depth at one end of the lifting tube (1), a connecting rod (3) at the other end of the lifting tube (1), and a dial indicator (4) at the end of the connecting rod (3) away from the lifting tube (1); a plurality of tapered holes adapted to the ball head of the hemispherical head screw (2) are machined on the measuring surface of one side wall of the gantry milling machine; the lifting tube (1) is provided with lifting screws (5). The hanging pipe (1) includes a hollow pipe (11), a suspension joint (12) located outside the hollow pipe (11), a first plug (13) located at one end of the hollow pipe (11), and a second plug (14) located at the other end of the hollow pipe (11). The hemispherical head screw (2) is located in the first threaded hole inside the first plug (13), and the connecting rod (3) is located in the second plug (14) through a stop and a second threaded hole.

2. The method for measuring the parallelism of the wall of a gantry milling machine according to claim 1, characterized in that: The suspension joint (12) is provided with mounting holes for installing lifting screws (5); the lifting screws (5) are installed in the mounting holes.

3. The method for measuring the parallelism of the wall of a gantry milling machine according to claim 1, characterized in that: The center points of the suspension joint (12) and the hollow tube (11) coincide.

4. The method for measuring the parallelism of the wall of a gantry milling machine according to claim 1, characterized in that: The first plug (13) is equipped with a first threaded hole that matches the end of the hemispherical screw (2); the hemispherical screw (2) is installed on the left end of the hanging pipe (1) through the first threaded hole.

5. The method for measuring the parallelism of the wall of a gantry milling machine according to claim 1, characterized in that: The second plug (14) is equipped with a stop and a second threaded hole that match the end of the connecting rod (3); the connecting rod (3) is installed on the right end of the hanging pipe (1) through the stop and the second threaded hole.

6. A method for measuring the parallelism of the wall of a gantry milling machine according to any one of claims 1-5, characterized in that: A hexagonal nut (21) and a spring washer (22) are provided between the hemispherical head screw (2) and the hanging tube (1).

7. A method for measuring the parallelism of the wall of a gantry milling machine according to any one of claims 1-5, characterized in that: The connecting rod (3) is provided with a butterfly locking screw (31).

8. A system for measuring the parallelism of the wall of a gantry milling machine, characterized in that, The method for measuring the parallelism of the wall of a gantry milling machine as described in any one of claims 1-7 includes a first main module, a second main module, a third main module, a fourth main module, a fifth main module, and a sixth main module; wherein, The first main module is used to control the machining module to process several sets of corresponding measuring surfaces on the two side walls of the gantry machine tool; and to process a tapered hole (400) on one side of each set of measuring surfaces that matches the ball head of the upper hemispherical screw (2) of the parallelism measuring device of the gantry machine tool wall. The second main module is used to adjust the depth of the hemispherical head screw (2) inserted into the hanging pipe (1) and to adjust the length of the dial indicator (4) inserted into the connecting rod (3) so that the total length between the free end of the hemispherical head screw (2) and the measuring head of the dial indicator (4) is adapted to the distance between the gantry machine tool wall. The third main module is used to control the workshop gantry crane to suspend the parallelism measuring device of the gantry machine tool wall between the two walls of the gantry machine tool to be measured; The fourth main module is used to control the ball head of the hemispherical screw (2) to be in close contact with the wall measuring surface with the conical hole (400) and to repeatedly hit the corresponding measuring surface on the other side with the measuring head of the dial indicator (4) to obtain the minimum value of the distance between the two measuring surfaces. The fifth main module is used to control the workshop gantry crane to move along the wall direction for 700-1000mm, repeating the operation of the fourth main module to obtain several sets of minimum value data; the difference between the maximum and minimum values ​​in all the minimum value data is used to obtain the parallelism data between the gantry machine tool and the wall. The sixth main module is used to adjust the corresponding distance between the walls of the gantry machine tool according to the parallelism data between the walls, and repeat the operations of the fourth and fifth main modules until the parallelism requirement is met.

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