Method for drawing center line of steel ball of net rack
Through the design of the space frame steel ball marking mechanism, a single person can operate the space frame steel ball centerline marking efficiently and accurately, solving the problems of large error and low efficiency in the existing technology, saving costs and meeting the component strength requirements.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA METALLURGICAL CONSTR ENG GRP
- Filing Date
- 2023-12-22
- Publication Date
- 2026-05-15
AI Technical Summary
In existing technologies, the centering lines on the outer surface of the steel balls in the space frame have significant errors, requiring two operators to work together, which is inefficient and makes it difficult to guarantee cost and quality.
The steel ball marking mechanism, consisting of a measuring rod, a positioning rod, and an auxiliary rod, marks lines on the outer surface of the steel ball by measuring and positioning the marking surface. It can be operated by a single person and is suitable for steel balls of different diameters and positions.
It improves the efficiency of marking lines, reduces errors, ensures that the rods accurately pass through the center of the circle, saves labor costs, and meets the design strength requirements of the components.
Smart Images

Figure CN118123783B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of space frame steel ball construction, specifically to a method for marking the center line of a space frame steel ball. Background Technology
[0002] The existing technology of using measuring tapes and rulers to mark the centering lines on the outer surface of the steel balls in the space frame has a large error, requires two operators to work together to mark the lines, and is inefficient, and cannot effectively guarantee cost and quality.
[0003] Therefore, to solve the above problems, a method for marking the centerline of the steel spheres in a space frame is needed. This method should be able to quickly and accurately mark the centerline at the middle interface of the outer surface of the steel sphere, improving marking efficiency, effectively reducing errors in existing technologies, optimizing the process from two operators to one operator, and improving the quality of marking the centerline at the middle interface of the outer surface of the steel sphere. This ensures that subsequent members can accurately pass through the centerline, meeting the strength requirements of the component design, and saving labor costs. Summary of the Invention
[0004] In view of this, the purpose of this invention is to overcome the defects in the prior art and provide a method for marking the center line of a space frame steel ball. This method can quickly and accurately mark the center line at the middle interface of the outer surface of the steel ball, improve marking efficiency, effectively reduce the errors present in the prior art, optimize the process from two operators to one operator to complete the marking of the center line of the space frame steel ball, improve the quality of marking the center line at the middle interface of the outer surface of the space frame steel ball, ensure that subsequent members can accurately pass through the center of the circle, meet the strength requirements of the component design, and save labor costs.
[0005] The present invention provides a method for marking the center line of a space frame steel ball, which includes a space frame steel ball marking mechanism, wherein the space frame steel ball marking mechanism includes a measuring rod, a positioning rod, and an auxiliary rod;
[0006] The measuring rod has measuring lines distributed along the height direction. The positioning rod can be slidably mounted on the measuring rod along the height direction. The auxiliary rod can be slidably mounted on the measuring rod along the height direction.
[0007] The bottom surface of the positioning rod is the positioning surface, the top surface of the auxiliary rod is the scribing surface, and the positioning rod is located above the auxiliary rod in the height direction so that the positioning surface and the scribing surface are opposite each other in the height direction.
[0008] The positioning rod is a strip extending laterally, and in the projection in the height direction, the auxiliary rod is an arc shape that opens towards the direction in which the positioning rod is set.
[0009] It also includes the following steps:
[0010] S1. Bring the steel ball marking mechanism of the space frame and the steel ball of the space frame to be marked closer together;
[0011] S2. Position the measuring rod and the steel ball of the grid frame to be marked on the same plane and close to each other laterally; and position the positioning rod above the height of the steel ball of the grid frame to be marked.
[0012] S3. Move the positioning rod downward on the measuring rod so that the positioning surface contacts the top of the steel ball of the grid frame, and lock the positioning rod on the measuring rod;
[0013] S4. Mark the reading on the measuring rod where the positioning surface is located, and obtain 1 / 2 of that reading;
[0014] S5. Move the auxiliary rod on the measuring rod so that the scribing surface is at 1 / 2 position of the reading on the measuring rod, and lock the auxiliary rod on the measuring rod;
[0015] S6. Mark the lines along the steel ball of the space frame facing the marking line;
[0016] S7. Move the steel ball marking mechanism and the steel ball of the steel frame to be marked away from each other;
[0017] S8. Reset space frame steel ball marking mechanism.
[0018] Furthermore, the measuring rod is a strip extending along the height direction, and the positioning rod is sleeved on the measuring rod through bushing I, with the lower surface of bushing I being flush with the positioning surface;
[0019] The bushing I is positioned at a preset position I of the measuring rod by a positioning screw I. The axis of the positioning screw I is parallel to the transverse direction. The bushing I has a threaded hole I that is threadedly connected to the positioning screw I. The positioning screw I can be manipulated to move closer to or further away from the measuring rod through the threaded hole I, so that the positioning rod is positioned or released on the measuring rod.
[0020] Furthermore, the auxiliary rod is sleeved on the measuring rod via bushing II, and the upper surface of bushing II is flush with the scribing surface;
[0021] The bushing II is positioned at a preset position II of the measuring rod by a positioning screw II. The axis of the positioning screw II is parallel to the transverse direction. The bushing II has a threaded hole II that is threadedly connected to the positioning screw II. The positioning screw II can be manipulated to move closer to or further away from the measuring rod through the threaded hole II, so that the auxiliary rod is positioned or released on the measuring rod.
[0022] Furthermore, the measuring rod has a groove formed along the height direction, the bushing I has a guide portion I guided by the groove, and the bushing II has a guide portion II guided by the groove.
[0023] In the projection along the height direction, the shapes of guide part I and guide part II are the same as the shape of the chute.
[0024] Furthermore, the projection of the groove in the height direction is rectangular.
[0025] Furthermore, there are two slides, each distributed on one side of the measuring rod laterally.
[0026] Furthermore, the two grooves are opposite each other at the longitudinal center of the measuring rod, so that the projection of the measuring rod in the height direction is "I" shaped.
[0027] Furthermore, the positioning rod is located at the lateral front end of the bushing I, the threaded hole I is opened at the lateral rear end of the bushing I, and the axis of the threaded hole I passes through the longitudinal middle of the bushing I;
[0028] The auxiliary rod is located at the lateral front end of the bushing II, the threaded hole II is opened at the lateral rear end of the bushing II, and the axis of the threaded hole II passes through the longitudinal middle of the bushing II.
[0029] The beneficial effects of this invention are as follows: The method for marking the center line of a space frame steel ball disclosed in this invention eliminates the need for measuring tapes and rulers, requiring only one person to complete the operation. The positioning rod is placed on top of the space frame steel ball. Based on the outer diameter of the space frame steel ball, the auxiliary rod is moved to the outer diameter of the space frame steel ball by observing the measuring lines on the measuring rod, thus positioning the auxiliary rod on the measuring rod. The marking is then performed on the marking surface. Any arc position of the space frame steel ball can be selected. The entire process is simple to operate, with minimal error, improving work efficiency while ensuring the quality of the centering and marking. This device requires no multiple operators; one person can complete the work, saving labor costs. Furthermore, this device is suitable for centering and marking steel balls of different diameters and positions, with simple operation and minimal error, providing a favorable guarantee for subsequent members to pass through the center of the ball, ensuring that the overall component assembly meets the required strength specifications. Attached Figure Description
[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0031] Figure 1 This is a schematic diagram of the main structure of the present invention;
[0032] Figure 2 This is a top view of the structure of the present invention;
[0033] Figure 3 This is a schematic diagram of the left-side structure of the present invention;
[0034] Figure 4 For the present invention Figure 1 A schematic diagram of the AA-direction structure;
[0035] Figure 5 For the present invention Figure 1 Schematic diagram of the BB-oriented structure;
[0036] Figure 6 This is a schematic diagram of the structure of the present invention. Detailed Implementation
[0037] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a top view of the structure of the present invention; Figure 3 This is a schematic diagram of the left-side structure of the present invention; Figure 4 For the present invention Figure 1 A schematic diagram of the AA-direction structure; Figure 5 For the present invention Figure 1 Schematic diagram of the BB-oriented structure; Figure 6 This is a schematic diagram of the structure of the present invention; as shown in the figure, the height direction is the length direction of the measuring rod 1, the lateral direction is the length direction of the positioning rod 2, the front is the direction from the middle of the lateral direction of the measuring rod 1 to the positioning rod 2, the rear is in the opposite direction to the front in the lateral direction, and the longitudinal direction is perpendicular to both the height direction and the lateral direction, which will not be described in detail here;
[0038] The method for marking the center line of the steel ball in the space frame in this embodiment includes a steel ball marking mechanism, which includes a measuring rod 1, a positioning rod 2, and an auxiliary rod 3.
[0039] In this embodiment, the measuring rod 1 is a strip extending along the height direction. The measuring rod 1 has measuring lines 4, which are distributed along the height direction. The graduation value of the measuring lines 4 is 1mm. In this solution, the measuring lines 4 are located on the outer wall surface of the measuring rod 1, which is conducive to intuitive reading.
[0040] In this embodiment, the positioning rod 2 is a strip extending laterally. The positioning rod 2 can be slidably mounted on the measuring rod 1 in the height direction, which improves the convenience of measurement and is suitable for measuring steel balls of different diameters, ensuring the economic efficiency of the measuring tool. The bottom surface of the positioning rod 2 is the positioning surface.
[0041] More specifically, the positioning rod 2 is sleeved on the measuring rod 1 via a bushing I5, which improves the reliability of the structure and ensures the smooth sliding of the positioning rod 2 on the measuring rod 1. The lower surface of the bushing I5 is flush with the positioning surface, ensuring the measurement accuracy of the steel ball of the grid frame to be measured in subsequent measurement steps. The bushing I5 is limited / released from the preset position I of the measuring rod 1 by the positioning screw I6. The axis of the positioning screw I6 is parallel to the transverse direction. The bushing I5 has a threaded hole I that is threadedly connected to the positioning screw I6. The positioning screw I6 can be manipulated to move closer to or further away from the measuring rod 1 through the threaded hole I, so that the positioning rod 2 is limited or released on the measuring rod 1. That is, by screwing the positioning screw I6 into or out of the threaded hole I, the positioning rod 2 is limited or released from the preset position I of the measuring rod 1. More specifically, when the front end face of the positioning screw I6 is pressed against the measuring rod 1, the positioning rod 2 is limited, and vice versa, the limitation is released. This will not be elaborated further. The positioning rod 2 is located at the transverse front end of the bushing I5, and the threaded hole I is opened at the transverse rear end of the bushing I5. The axis of the threaded hole I passes through the longitudinal middle of the bushing I5, making the adjustment of the positioning rod 2 on the measuring rod 1 smoother, more stable and convenient.
[0042] In this embodiment, in the projection along the height direction, the auxiliary rod 3 is an arc shape with an opening towards the positioning rod 2. The longitudinal center of the auxiliary rod 3 is connected to the measuring rod 1, and more specifically, the longitudinal center of the auxiliary rod 3 is connected to the transverse front end face of the measuring rod 1. The auxiliary rod 3 is symmetrical about the transverse line passing through the longitudinal center of the auxiliary rod 3, so that the auxiliary rod 3 can better fit the outer surface of the steel ball of the grid frame, and the structure can be more stable during measurement, which is conducive to the scribing operation. The auxiliary rod 3 can be slidably set along the height direction on the measuring rod 1, which improves the convenience of measurement and is applicable to the measurement of steel balls of different diameters, ensuring the economical use of the measuring tool. The top surface of the auxiliary rod 3 is the scribing surface.
[0043] More specifically, the auxiliary rod 3 is sleeved on the measuring rod 1 via a bushing II 7, which improves the reliability of the structure and ensures the smooth sliding of the auxiliary rod 3 on the measuring rod 1. The upper surface of the bushing II 7 is flush with the scribing surface, ensuring the measurement accuracy of the steel ball of the grid frame to be measured in subsequent measurement steps. The bushing II 7 is limited / released from the preset position II of the measuring rod 1 by a positioning screw II. The axis of the positioning screw II is parallel to the transverse direction. The bushing II 7 has a threaded hole II that is threadedly connected to the positioning screw II. The positioning screw II can be manipulated to move closer to or further away from the measuring rod 1 through the threaded hole II, so that the auxiliary rod 3 is limited or released from the measuring rod 1. That is, by screwing the positioning screw II into or out of the threaded hole II, the auxiliary rod 3 is limited or released from the preset position II of the measuring rod 1. More specifically, when the front end face of the positioning screw II is pressed against the measuring rod 1, the auxiliary rod 3 is limited, and vice versa. This will not be elaborated further. The auxiliary rod 3 is located at the transverse front end of the bushing II 7, and the threaded hole II is opened at the transverse rear end of the bushing II 7. The axis of the threaded hole II passes through the longitudinal middle of the bushing II 7, making the adjustment of the auxiliary rod 3 on the measuring rod 1 smoother, more stable and convenient.
[0044] The positioning screw I6 and positioning screw II have the same structure, and the bushing I5 and bushing II7 have the same structure, which will not be described again here.
[0045] In this embodiment, the positioning rod 2 is located above the auxiliary rod 3 in the height direction, so that the positioning surface and the scribing surface are opposite each other in the height direction. During operation, the positioning rod 2 is pushed downward from above the measuring rod 1, and the auxiliary rod 3 is pushed upward from below the measuring rod 1, which further ensures the measurement accuracy and precision.
[0046] In this embodiment, the measuring rod 1 has a groove opened along the height direction, the bushing I5 has a guide part I8 guided by the groove, so that the sliding of the positioning rod 2 on the measuring rod 1 is further guided, improving the sliding stability and smoothness; the bushing II7 has a guide part II guided by the groove, so that the sliding of the auxiliary rod 3 on the measuring rod 1 is further guided, improving the sliding stability and smoothness.
[0047] In the projection along the height direction, the shapes of the guide part I8 and the guide part II are the same as the shape of the chute, and the dimensions of the guide part I8 and the guide part II are the same as the dimensions of the chute. The projection of the chute along the height direction is rectangular, which prevents the positioning rod 2 and the auxiliary rod 3 from rotating relative to the measuring rod 1 in the circumference of the measuring rod 1. This improves the measurement accuracy and operational reliability of the steel ball 001 of the grid frame to be marked, while also making the sliding stroke of the positioning rod 2 and the auxiliary rod 3 longer and improving the structural strength of the measuring rod 1, reducing the negative impact of the grooving on the strength reduction.
[0048] In this embodiment, as Figure 5 As shown, there are two sliding grooves, each corresponding to one of the two sides of the measuring rod 1 laterally; the two sliding grooves are opposite each other at the midpoint of the longitudinal direction of the measuring rod 1, so that the projection of the measuring rod 1 in the height direction forms an "I" shape. This further improves the operational stability of the positioning rod 2 and the auxiliary rod 3, as well as the marking accuracy of the steel ball 001 of the grid frame to be marked.
[0049] This solution utilizes a steel ball marking mechanism to quickly and accurately mark the center line at the middle interface of the outer surface of the steel ball, effectively reducing the errors present in existing technologies and ensuring that subsequent members can accurately pass through the center, thus meeting the strength requirements of the component design.
[0050] It also includes the following steps:
[0051] S1. Bring the steel ball marking mechanism of the grid frame and the steel ball 001 of the grid frame to be marked closer together, and further, make the front end face of the steel ball of the grid frame and the measuring rod 1 fit together, which helps to ensure the stability of the steel ball marking mechanism of the grid frame and the steel ball 001 of the grid frame to be marked, and improves the measurement accuracy.
[0052] S2. Position the measuring rod 1 and the steel ball 001 of the grid frame to be marked on the same plane and close to each other laterally; and position the positioning rod 2 above the top of the steel ball 001 in the height direction. Furthermore, position the auxiliary rod 3 below the middle of the steel ball 001 in the height direction. During operation, the positioning rod 2 is pushed downward from above the measuring rod 1, and the auxiliary rod 3 is pushed upward from below the measuring rod 1, which is beneficial for measuring and marking the steel ball 001 of the grid frame to be marked.
[0053] S3. Move the positioning rod 2 downward on the measuring rod 1 so that the positioning surface contacts the top of the steel ball of the grid frame, and lock the positioning rod 2 on the measuring rod 1;
[0054] S4. Mark the positioning surface at the reading of measuring rod 1, and obtain 1 / 2 of this reading, which will give the centerline position of the steel ball of the space frame to be measured;
[0055] S5. Move the auxiliary rod 3 on the measuring rod 1 so that the scribing surface is located at 1 / 2 position of the reading on the measuring rod 1, and lock the auxiliary rod 3 on the measuring rod 1;
[0056] S6. Mark the steel ball of the space frame along the marking line to complete the marking operation of the steel ball 001 of the space frame to be marked;
[0057] S7. Move the steel ball marking mechanism of the space frame and the steel ball 001 of the space frame to be marked away from each other;
[0058] S8. Reset the steel ball marking mechanism of the space frame. This reset operation is to reset the positioning rod 2 and the operating rod.
[0059] Existing technologies using measuring tapes and rulers for centering and marking the outer surface of steel balls have significant errors, require two operators, and are inefficient. This proposed steel ball marking mechanism for space frames eliminates the need for measuring tapes and rulers, requiring only one person to complete the task. Positioning rod 2 is placed on top of the steel ball. Based on the outer diameter of the steel ball, the auxiliary rod 3 is moved to the corresponding outer diameter using the measuring line 4 on the measuring rod 1, positioning it on the measuring rod 1. The marking is then performed on the marking surface, allowing for the selection of any arc position on the steel ball. The entire process is simple, with minimal error, improving work efficiency while ensuring the quality of centering and marking. This device requires no multiple operators, saving labor costs. Furthermore, it is suitable for centering and marking steel balls of different diameters and positions, offering simple operation and minimal error, providing a favorable guarantee for subsequent members passing through the center of the ball, and ensuring the overall assembly strength meets specifications.
[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.
Claims
1. A method for marking the center line of a steel ball in a space frame, characterized in that: The system includes a steel ball marking mechanism for a space frame, which comprises a measuring rod, a positioning rod, and an auxiliary rod. The measuring rod has measuring lines distributed along the height direction. The positioning rod can be slidably mounted on the measuring rod along the height direction. The auxiliary rod can be slidably mounted on the measuring rod along the height direction. The bottom surface of the positioning rod is the positioning surface, the top surface of the auxiliary rod is the scribing surface, and the positioning rod is located above the auxiliary rod in the height direction so that the positioning surface and the scribing surface are opposite each other in the height direction. The positioning rod is a strip extending laterally, and in the projection in the height direction, the auxiliary rod is an arc shape that opens towards the direction in which the positioning rod is set. The measuring rod is a strip extending along the height direction, and the positioning rod is sleeved on the measuring rod through bushing I, with the lower surface of bushing I being flush with the positioning surface; The bushing I is limited / released from the preset position I of the measuring rod by the positioning screw I. The axis of the positioning screw I is parallel to the transverse direction. The bushing I has a threaded hole I that is threadedly connected to the positioning screw I. The positioning screw I can be manipulated to move closer to or further away from the measuring rod through the threaded hole I, so that the positioning rod is limited or released on the measuring rod. The auxiliary rod is sleeved on the measuring rod through bushing II, and the upper surface of bushing II is flush with the scribing surface; The bushing II is limited / released from the preset position II of the measuring rod by the positioning screw II. The axis of the positioning screw II is parallel to the transverse direction. The bushing II has a threaded hole II that is threadedly connected to the positioning screw II. The positioning screw II can be manipulated to move closer to or further away from the measuring rod through the threaded hole II, so that the auxiliary rod is limited or released from the measuring rod. The measuring rod has a groove extending along the height direction; bushing I has a guide portion I guided by the groove; bushing II has a guide portion II guided by the groove. In the projection along the height direction, the shapes of guide part I and guide part II are the same as the shape of the chute; It also includes the following steps: S1. Bring the steel ball marking mechanism of the space frame and the steel ball of the space frame to be marked closer together; S2. Position the measuring rod and the steel ball of the grid frame to be marked on the same plane and close to each other laterally; and position the positioning rod above the height of the steel ball of the grid frame to be marked. S3. Move the positioning rod downward on the measuring rod so that the positioning surface contacts the top of the steel ball of the grid frame, and lock the positioning rod on the measuring rod; S4. Mark the reading on the measuring rod where the positioning surface is located, and obtain 1 / 2 of that reading; S5. Move the auxiliary rod on the measuring rod so that the scribing surface is at 1 / 2 position of the reading on the measuring rod, and lock the auxiliary rod on the measuring rod; S6. Mark the lines along the steel ball of the space frame facing the marking line; S7. Move the steel ball marking mechanism and the steel ball of the steel frame to be marked away from each other; S8. Reset space frame steel ball marking mechanism.
2. The method for marking the center line of a space frame steel ball according to claim 1, characterized in that: The projection of the chute in the height direction is rectangular.
3. The method for marking the center line of a space frame steel ball according to claim 2, characterized in that: There are two slides, each distributed on one side of the measuring rod laterally.
4. The method for marking the center line of a space frame steel ball according to claim 3, characterized in that: The two grooves are opposite each other at the longitudinal center of the measuring rod, so that the projection of the measuring rod in the height direction is "I" shaped.
5. The method for marking the center line of a space frame steel ball according to claim 4, characterized in that: The positioning rod is located at the lateral front end of the bushing I, the threaded hole I is opened at the lateral rear end of the bushing I, and the axis of the threaded hole I passes through the longitudinal middle of the bushing I. The auxiliary rod is located at the lateral front end of the bushing II, the threaded hole II is opened at the lateral rear end of the bushing II, and the axis of the threaded hole II passes through the longitudinal middle of the bushing II.