Device for adjusting concentricity of anchor bolt holes of double-layer column bottom plate

Abstract

The utility model provides a device for adjusting concentricity of anchor bolt holes of a double-layer column bottom plate. The device comprises a base, an arc-shaped track and an adjusting expansion mechanism. The arc-shaped track is arranged on the base, the multiple adjusting and expanding mechanisms are movably connected to the arc-shaped track, and each adjusting and expanding mechanism further comprises a diameter adjusting assembly, a mounting base, a driving mechanism, a moving mechanism and a limiting mechanism; the diameter adjusting assembly comprises a second driving piece and a positioning rod. The positioning device is wide in application range, the positioning rods can abut against the inner walls of the corresponding bolt holes by adjusting the distance between the positioning rods, then the double-layer column bottom plates are driven to move relatively, and the concentricity of the bolt holes of the double-layer column bottom plates is efficiently and accurately adjusted. The offset of the bolt hole of the double-layer column bottom plate can be accurately detected; the automation degree is high, the operation difficulty is reduced, and the efficiency and precision of mounting the double-layer column bottom plate are improved.

Description

Technical Field

[0001] This utility model belongs to the field of steel structure construction technology, and in particular relates to a device for adjusting the concentricity of anchor bolt holes in a double-layer column base plate. Background Technology

[0002] As more and more steel structure buildings with frame structures appear in people's lives, the fabrication and installation of steel structures are becoming increasingly difficult. In particular, when installing double-layer column base plates, the concentricity of the bolt holes on the upper and lower base plates is crucial for the successful alignment and connection of the steel columns and anchor bolts. However, due to the considerable thickness of the column base plates, the cutting precision of the bolt holes is difficult to strictly control. Furthermore, deformation of the bolt holes may occur during the welding process, ultimately leading to deviations in the bolt holes during the installation of the upper and lower double-layer column base plates, affecting the installation effect. Existing technology typically uses manual measuring tapes for measurement and adjustment. Although this method is relatively simple, its measurement accuracy is low, and precise control is difficult to achieve during manual measurement. This not only affects the accuracy of measurement and adjustment but also significantly increases construction time and labor input. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a device for intelligently adjusting the concentricity of anchor bolt holes in a double-layer column base plate, which is easy to operate and provides precise and efficient adjustment.

[0004] The technical solution adopted by this utility model is: a device for adjusting the concentricity of anchor bolt holes in a double-layer column base plate, comprising a base, an arc-shaped track, and an adjustment and expansion mechanism; the arc-shaped track is disposed on the base, and a plurality of the adjustment and expansion mechanisms are movably connected to the arc-shaped track, capable of moving along the arc-shaped track to align with the anchor bolt holes in the column base plate; the adjustment and expansion mechanism includes a diameter adjustment component, the shape and size of which can be adjusted to adapt to the diameter of the anchor bolt holes.

[0005] Furthermore, the adjustment and expansion mechanism also includes a mounting base, a drive mechanism, a moving mechanism, and a limiting mechanism; the diameter adjustment component is disposed at one end of the mounting base, and the moving mechanism is fixed to the end of the mounting base opposite to the diameter adjustment component by a pin and is rotatably connected to the top surface of the arc-shaped track; the drive mechanism and the limiting mechanism are respectively disposed on both sides of the moving mechanism and are movably connected to the two side end faces of the arc-shaped track.

[0006] Furthermore, the top surface is provided with a limiting groove, which is adapted to the moving mechanism.

[0007] Furthermore, the driving mechanism includes a first driving member and a gear connected to the first driving member, and a toothed belt that meshes with the gear is provided on one side end face of the arc-shaped track; the limiting mechanism is embedded with a ball, and the ball is in rolling connection with the other side end face of the arc-shaped track; the limiting mechanism is provided with a limiting pin.

[0008] Furthermore, the arc-shaped track has a notch so that the adjusting expansion mechanism can be connected to the arc-shaped track from the notch.

[0009] Furthermore, the diameter adjustment assembly includes a second driving member and a positioning rod. The second driving member has two opposing driving ends, and the positioning rod is perpendicularly connected to the driving ends of the second driving member.

[0010] Furthermore, the toothed belt is disposed on the inner ring of the arc-shaped track, and the outer ring of the arc-shaped track is also provided with scale lines.

[0011] Furthermore, the base includes a rotating platform and an adjusting seat, and the arc-shaped track is disposed on the rotating platform; the adjusting seat is provided with a rotating mechanism, which is connected to one end of the rotating platform to adjust the angle of the rotating platform relative to the adjusting seat.

[0012] Furthermore, the base is also equipped with a control system, which is electrically connected to the adjustment and expansion mechanism and the rotation mechanism respectively.

[0013] The advantages and positive effects of this utility model are as follows: The device for adjusting the concentricity of anchor bolt holes in double-layer column base plates proposed in this application has a wide range of applications. By adjusting the distance between the positioning rods, the inner walls of the corresponding bolt holes can be pressed together, thereby causing relative movement between the double-layer column base plates and achieving concentric alignment of the bolt holes. This allows for efficient and precise adjustment of the concentricity of the bolt holes in the double-layer column base plates. Simultaneously, it can accurately check the offset of the bolt holes in the double-layer column base plates, providing a basis for subsequent adjustment work. It has a high degree of automation, eliminating the need for repeated measurements by operators, reducing operational difficulty, significantly improving the efficiency and accuracy of double-layer column base plate installation, and ensuring the installation quality of the double-layer column base plates during steel structure installation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a specific embodiment of the present invention;

[0015] Figure 2 This is a schematic diagram of the adjusting expansion mechanism structure of a specific embodiment of this utility model;

[0016] Figure 3 This is a schematic diagram illustrating the use of a specific embodiment of this utility model.

[0017] In the picture:

[0018] 1. Base; 11. Rotating platform; 12. Rotating mechanism

[0019] 121. Rotating shaft; 122. Rotating arm; 13. Horizontal traversing mechanism

[0020] 14. Adjusting seat 2, Arc-shaped track 21, Limiting groove

[0021] 22. Toothed belt; 23. Scale lines; 3. Adjustment and expansion mechanism

[0022] 31. Moving mechanism; 32. Driving mechanism; 321. First driving component

[0023] 322, Gear; 33, Limiting Mechanism; 331, Ball Bearing

[0024] 332, Limit pin; 34, Diameter adjustment assembly; 341, Positioning rod

[0025] 342. Second driving component Detailed Implementation

[0026] The embodiments of this utility model will now be described with reference to the accompanying drawings.

[0027] This utility model proposes a device for adjusting the concentricity of anchor bolt holes in a double-layer column base plate. This device is used to adjust and detect the concentricity of bolt holes in the double-layer column base plate during steel structure installation. Typically, the column base plate is located at the bottom of the steel column and has several bolt holes evenly distributed along the circumference of the column. The steel column is fixed to the ground by aligning with bolts pre-embedded in the ground. However, when a double-layer column base plate is used, it must first be welded, and the bolt holes must be aligned during welding to ensure smooth alignment and connection between the column base plate and the anchor bolts. The device for adjusting the concentricity of anchor bolt holes in a double-layer column base plate proposed in this application has a wide range of applications and can be flexibly adjusted according to the position and diameter of the bolt holes, thereby ensuring the concentric alignment of the bolt holes in the double-layer column base plate. This significantly improves the efficiency and accuracy of double-layer column base plate installation and ensures the installation quality of the double-layer column base plate during steel structure installation.

[0028] like Figure 1 As shown, a device for adjusting the concentricity of anchor bolt holes in a double-layer column base plate includes a base 1, an arc-shaped track 2, and an adjustment and expansion mechanism 3. The arc-shaped track 2 is disposed on the base 1, and several adjustment and expansion mechanisms 3 are movably connected to the arc-shaped track 2, which can move along the arc-shaped track 2 to align with the anchor bolt holes in the column base plate. The adjustment and expansion mechanism 3 includes a diameter adjustment component 34, the shape and size of which can be adjusted to adapt to the diameter of the anchor bolt holes.

[0029] The number of the aforementioned adjustment and expansion mechanisms 3 is set according to the number and position of the bolt holes on the double-layer column base plate. The position of the adjustment and expansion mechanisms 3 on the arc-shaped track 2 can be adjusted according to the relative position between the bolt holes, ensuring that each adjustment and expansion mechanism 3 aligns with and inserts into the corresponding bolt hole. By adjusting the shape and size of the diameter adjustment components 34, each diameter adjustment component 34 can press against the inner wall of the corresponding bolt hole, thereby causing relative movement between the double-layer column base plates, achieving concentric alignment of the bolt holes, and efficiently and accurately adjusting the concentricity of the bolt holes in the double-layer column base plate. It can also be used to check the concentricity of the bolt holes in the double-layer column base plate. When adjusting the diameter adjustment components 34, if the size of some or all of the diameter adjustment components 34 cannot match the diameter of the bolt hole, it indicates insufficient concentricity of the bolt holes in the double-layer column base plate. Furthermore, the test results can be used to determine the offset of the bolt holes, providing a basis for subsequent adjustment work.

[0030] Normally, bolt holes are evenly distributed around the steel column, and the cross-sectional shape of the steel column is generally circular or square. The shape of the arc track 2 in this application is set according to the distribution of bolt holes on the column base plate. When the position of the adjustment expansion mechanism 3 on the arc track 2 is adjusted, the adjustment expansion mechanism 3 can be aligned with more than three bolt holes. Preferably, the more than three bolt holes are distributed relatively to the center of the column base plate, which can improve the accuracy of adjustment and inspection.

[0031] Furthermore, such as Figure 2 As shown, the adjustment and expansion mechanism 3 also includes a mounting base, a drive mechanism 32, a moving mechanism 31, and a limiting mechanism 33. The adjustment component is located at one end of the mounting base. The moving mechanism 31 is fixed to the end of the mounting base opposite to the diameter adjustment component 34 by a pin and is rolledly connected to one end face of the arc-shaped track 2. The drive mechanism 32 and the limiting mechanism 33 are respectively located on both sides of the moving mechanism 31. The drive mechanism 32 and the limiting mechanism 33 are movably connected to both end faces of the arc-shaped track 2. By operating the drive mechanism 32, the mounting base and the adjustment component on the mounting base can be moved along the arc-shaped track 2 to adjust the relative position between the expansion mechanisms 3, so that they can be aligned with the bolt holes of the double-layer column base plate. By setting the limiting mechanism 33 opposite to the drive mechanism 32, the adjustment and expansion mechanism 3 can be prevented from disengaging from the arc-shaped track 2 during movement, achieving a good limiting effect.

[0032] The top surface is provided with a limiting groove 21, which is arranged along the length of the arc track 2. The limiting groove 21 is adapted to the moving mechanism 31, so that the moving mechanism 31 can move along the limiting groove 21.

[0033] The aforementioned driving mechanism 32 includes a first driving member 321 and a gear 322 connected to the first driving member 321. One side end face of the arc-shaped track 2 is provided with a toothed belt 22 that meshes with the gear 322, so that the gear 322 can move along the toothed belt 22 under the drive of the first driving member 321. The limiting mechanism 33 is equipped with a ball bearing 331, which is rolledly connected to the other side end face of the arc-shaped track 2. It cooperates with the gear 322 to stably fix the base 1 on the arc-shaped track 2 and prevent it from shifting to either side of the arc-shaped track 2. The limiting mechanism 33 is provided with a limiting pin 332. Preferably, the limiting pin 332 is threadedly connected to the limiting mechanism 33. By screwing the limiting pin 332 to press it against the side end face of the arc-shaped track 2, the base 1 can be fixed in the set position of the arc-shaped track 2 to prevent it from moving during adjustment and inspection.

[0034] In one specific embodiment, the two side end faces of the arc track 2 are respectively provided with grooves, the toothed belt 22 is disposed in the grooves, and the limiting pin 332 is disposed at the position corresponding to the groove of the limiting mechanism 33. During the adjustment of the expansion mechanism 3, the limiting pin 332 extends into the groove without contacting it, and cooperates with the gear 322 to achieve further limiting, preventing the base 1 from moving away from the top surface of the arc track 2 and detaching; however, when it is necessary to fix the base 1, the base 1 can be fixed to the arc track 2 by screwing the limiting pin 332 against the groove.

[0035] In this application, the shape and size of the diameter adjustment component 34 are adjusted to abut against the inner wall of the corresponding bolt hole. In a specific embodiment, the diameter adjustment component 34 includes a second driving member 342 and a positioning rod 341. The second driving member 342 has two opposing driving ends, and the positioning rods 341 are respectively vertically connected to the driving ends of the second driving member 342. Under the drive of the second driving member 342, they move closer to or further away from each other. Specifically, the cross-section of the positioning rod 341 is preferably circular or semi-circular. When the two positioning rods 341 move closer to each other, the distance between the farthest ends of the enclosed shape is the minimum diameter, which is smaller than the diameter of the bolt hole on the double-layer column base plate to be adjusted or inspected, so that the two positioning rods 341 can be inserted into the bolt hole. When the two positioning rods 341 move further away from each other, the distance between the farthest ends of the enclosed shape gradually increases until it is the same as the diameter of the bolt hole, at which point it can abut against the bolt hole.

[0036] In this application, the aforementioned arc-shaped track 2 is provided with a notch to facilitate the connection of the adjustment expansion mechanism 3 to the arc-shaped track 2 through the notch, so as to adjust the number of adjustment expansion mechanisms 3 according to the number of bolt holes, and prevent excess adjustment expansion mechanisms 3 from affecting the use of the device.

[0037] Preferably, the toothed belt 22 in this application is set on the inner ring of the arc track 2, and the outer ring of the arc track 2 is also provided with scale lines 23. The operator can adjust the position of the expansion mechanism 3 according to the scale value so that it matches the relative position of the bolt holes of the double-layer column base plate; the operator can also check whether the position of the expansion mechanism 3 is accurate according to the scale value of the position of the expansion mechanism 3.

[0038] Furthermore, the base 1 includes a rotating platform 11 and an adjusting seat 14, with an arc-shaped track 2 disposed on the rotating platform 11; the adjusting seat 14 is provided with a rotating mechanism 12, which is connected to one end of the rotating platform 11 to adjust the angle of the rotating platform 11 relative to the adjusting seat 14. Through the action of the rotating mechanism 12, the rotating platform 11 can be set in a horizontal or vertical direction to adapt to a double-layer column base plate set in a horizontal direction or a double-layer column base plate set in a vertical direction.

[0039] Specifically, the rotating mechanism 12 includes a rotating drive, a rotating shaft 121, and a rotating arm 122. One end of the rotating arm 122 is connected to one end of the rotating platform 11, and the other end of the rotating arm 122 is connected to the rotating shaft 121. The rotating shaft 121 is connected to the drive end of the rotating drive and can rotate under the drive of the rotating drive to adjust the angle of the rotating platform 11 relative to the adjusting seat 14, so as to match the posture during the processing of the double-layer column base plate.

[0040] Furthermore, the base 1 is also provided with a horizontal traversing mechanism 13, which has a traversing guide rail and a traversing drive component. The direction of the traversing guide rail is the same as the extension direction of the positioning rod 341 when the rotating platform 11 is set in the vertical direction. The rotating mechanism 12 is located at the driving end of the horizontal traversing mechanism 13 and can move along the traversing guide rail under the drive of the horizontal traversing mechanism 13, so as to drive the positioning rod 341 away from the bolt hole of the double-layer column base plate after adjustment or testing is completed. Preferably, the traversing drive component is a cylinder. The structure of the horizontal traversing mechanism 13 is prior art and will not be described in detail here.

[0041] Preferably, the base 1 is also provided with a control system, which is electrically connected to the adjustment and expansion mechanism 3 and the rotation mechanism 12 respectively.

[0042] The method of using the device for adjusting the concentricity of anchor bolt holes in the double-layer column base plate proposed in this application specifically includes the following steps:

[0043] S1. Install the adjusting expansion mechanism 3 on the arc track 2 according to the number of anchor bolt holes in the double-layer column base plate;

[0044] Specifically, based on the radius of the arc track 2 and the distance between the bolt holes on the double-layer column base plate, select three or more dispersed bolt holes as adjustment objects, and then install the corresponding number of adjustment expansion mechanisms 3 from the notch of the arc track 2 onto the arc track 2, and adjust the limiting pin 332 so that it extends into the groove on one side end face of the arc track 2 without contacting the groove.

[0045] S2. Adjust the angle of the rotating platform 11 according to the posture of the double-layer column base plate;

[0046] During the adjustment work, the double-layer column base plate is temporarily fixed in either the vertical or horizontal direction. Depending on its posture, the rotating platform 11 is adjusted by the control system to make it also set in either the vertical or horizontal direction.

[0047] S3. Adjust and fix the position of the expansion mechanism 3 according to the relative position of the anchor bolt holes;

[0048] Specifically, based on the relative positions between the selected bolt holes, the position data and diameter data are imported into the control system, and the position of the adjustment expansion mechanism 3 is adjusted by the control system so that the relative positions between the adjustment expansion mechanisms 3 are the same as the relative positions between the bolt holes. Then, the adjustment expansion mechanism 3 is fixed to the arc track 2 by screwing the limit pin 332. Then, the entire device is moved to the position corresponding to the double-layer column base plate, so that the rotating platform 11 is parallel to the double-layer column base plate and maintains a set distance from the double-layer column base plate, and the positioning rods 341 are aligned with the bolt holes respectively.

[0049] S4. Insert the double-layer column base plate into the adjusting expansion mechanism 3;

[0050] In this application, depending on actual needs, the double-layer column base plate can be moved or the device can be moved so that the positioning rod 341 of each adjustment expansion mechanism 3 passes through a corresponding bolt hole.

[0051] S5. Adjust the distance between the positioning rods 341 on the adjustment expansion mechanism 3 so that they abut against the anchor bolt hole;

[0052] The control system controls the second drive unit to operate, causing the positioning rods 341 on the same adjustment expansion mechanism 3 to move away from each other until the distance between the farthest ends of the shape enclosed by the positioning rods 341 is the same as the diameter of the bolt holes preset in the control system; during this process, the double-layer column base plates are displaced relative to each other under the drive of the positioning rods 341 until the bolt holes on the two column base plates are concentrically aligned.

[0053] S6. Welding double-layer column base plate, and after welding, separating the double-layer column base plate from the device for adjusting the concentricity of the anchor bolt holes of the double-layer column base plate;

[0054] In this application, the double-layer column base plate can be removed or the device can be removed as needed. In this embodiment, after welding is completed, the concentricity of the bolt holes in the double-layer column base plate needs to be checked. Therefore, after welding is completed, the device for adjusting the concentricity of the anchor bolt holes in the double-layer column base plate is removed first.

[0055] In a specific embodiment, such as Figure 3 As shown, the double-layer column base plate is set vertically, and the rotating platform 11 is also set vertically. After the double-layer column base plate is welded, the horizontal lateral movement mechanism 13 is controlled by the control system to move the rotating platform 11 and the positioning rod 341 away from the bolt hole. In subsequent inspection operations, it is not necessary to readjust the position of the device again, which simplifies the operation.

[0056] S7. Remove some of the adjustment and expansion mechanisms 3 until at least three adjustment and expansion mechanisms 3 remain;

[0057] Several adjustment and expansion mechanisms 3 are removed from the gap in the arc track 2, while at least three adjustment and expansion mechanisms 3 are retained for testing.

[0058] S8. Adjust the position of the remaining adjustment and expansion mechanism 3;

[0059] Select a bolt hole as the test object, and readjust the relative position of the adjustment expansion mechanism 3 according to the relative position of the test object, so that the positioning rod 341 of each adjustment expansion mechanism 3 is aligned with a bolt hole. Preferably, a bolt hole different from the one in the adjustment operation is selected as the test object, or at least it is ensured that the bolt hole aligned by the adjustment expansion mechanism 3 in the adjustment operation is not the same as the bolt hole aligned in the test operation.

[0060] S9. After welding, the double-layer column base plate is put back onto the adjusting expansion mechanism 3 for concentricity testing.

[0061] The operation method of this step is the same as that in step S5; when the positioning rod 341 is adjusted to move away, if the distance between the farthest ends of the positioning rods 341 of some or all diameter adjustment components 34 cannot be consistent with the diameter of the bolt hole, it indicates that the concentricity of the bolt holes of the double-layer column base plate is insufficient; in addition, the offset of the bolt hole can be judged according to the test results, which provides a basis for subsequent adjustment work.

[0062] The device for adjusting the concentricity of anchor bolt holes in double-layer column base plates proposed in this application has a wide range of applications. By adjusting the distance between the positioning rods, the inner walls of the corresponding bolt holes can be tightened, thereby causing relative movement between the double-layer column base plates and achieving concentric alignment of the bolt holes. This allows for efficient and precise adjustment of the concentricity of the bolt holes in the double-layer column base plates. Simultaneously, it can accurately check the offset of the bolt holes in the double-layer column base plates, providing a basis for subsequent adjustment work. The device boasts a high degree of automation, eliminating the need for repeated measurements by operators, reducing operational difficulty, significantly improving the efficiency and accuracy of double-layer column base plate installation, and ensuring the installation quality of the double-layer column base plates during steel structure installation.

[0063] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made in accordance with the claims of this utility model should still fall within the patent coverage of this utility model.

Claims

1. A device for adjusting the concentricity of anchor bolt holes in a double-layer column base plate, characterized in that: It includes a base, an arc-shaped track, and an adjustment and expansion mechanism; the arc-shaped track is disposed on the base, and a plurality of the adjustment and expansion mechanisms are movably connected to the arc-shaped track and can move along the arc-shaped track to align with the anchor bolt holes of the column base plate; the adjustment and expansion mechanism includes a diameter adjustment component, the shape and size of which can be adjusted to adapt to the diameter of the anchor bolt holes.

2. The device for adjusting the concentricity of anchor bolt holes in a double-layer column base plate according to claim 1, characterized in that: The adjustment and expansion mechanism further includes a mounting base, a drive mechanism, a moving mechanism, and a limiting mechanism; the diameter adjustment component is disposed at one end of the mounting base, and the moving mechanism is fixed to the end of the mounting base opposite to the diameter adjustment component by a pin and is rolledly connected to the top surface of the arc-shaped track; the drive mechanism and the limiting mechanism are respectively disposed on both sides of the moving mechanism and are movably connected to the two side end faces of the arc-shaped track.

3. The device for adjusting the concentricity of anchor bolt holes in a double-layer column base plate according to claim 2, characterized in that: The top surface is provided with a limiting groove, which is adapted to the moving mechanism.

4. The device for adjusting the concentricity of anchor bolt holes in a double-layer column base plate according to claim 2 or 3, characterized in that: The driving mechanism includes a first driving member and a gear connected to the first driving member. One side end face of the arc-shaped track is provided with a toothed belt that meshes with the gear. The limiting mechanism is equipped with a ball bearing, which is in rolling connection with the other side end face of the arc-shaped track. The limiting mechanism is provided with a limiting pin.

5. The device for adjusting the concentricity of anchor bolt holes in a double-layer column base plate according to claim 4, characterized in that: The arc-shaped track has a notch so that the adjusting expansion mechanism can be connected to the arc-shaped track from the notch.

6. The device for adjusting the concentricity of anchor bolt holes in a double-layer column base plate according to claim 5, characterized in that: The diameter adjustment assembly includes a second driving member and a positioning rod. The second driving member has two opposing driving ends, and the positioning rod is perpendicularly connected to the driving ends of the second driving member.

7. The device for adjusting the concentricity of anchor bolt holes in a double-layer column base plate according to claim 5 or 6, characterized in that: The toothed belt is disposed on the inner ring of the arc-shaped track, and the outer ring of the arc-shaped track is also provided with scale lines.

8. The device for adjusting the concentricity of anchor bolt holes in a double-layer column base plate according to claim 7, characterized in that: The base includes a rotating platform and an adjusting seat, and the arc-shaped track is disposed on the rotating platform; the adjusting seat is provided with a rotating mechanism, which is connected to one end of the rotating platform to adjust the angle of the rotating platform relative to the adjusting seat.

9. The device for adjusting the concentricity of anchor bolt holes in a double-layer column base plate according to claim 8, characterized in that: The base is also equipped with a control system, which is electrically connected to the adjustment and expansion mechanism and the rotation mechanism respectively.

Images