Automatic positioning and assembling equipment for end beam of main beam

Abstract

The utility model relates to the field of crane mechanical equipment manufacturing, especially a kind of main beam end beam automatic positioning assembly equipment, including base, end beam conveying device is arranged in the both ends of base, end beam conveying device is set on the top of base, end beam conveying device includes end beam moving device, end beam height adjusting device and end beam positioning device;Wherein, end beam moving device is used to drive end beam to move in horizontal direction, to realize the accurate butt joint of end beam in the end of main beam;End beam height adjusting device is used to adjust the height of end beam in vertical direction, ensure that the height of end beam and the end of main beam is matched;End beam positioning device is positioned on the predetermined position of the end of main beam by accurate positioning technology, reduces butt joint error, to realize the automatic positioning assembly of main beam and end beam;The equipment not only improves assembly efficiency, also significantly improves assembly accuracy, reduces the error and labor intensity of manual operation.

Description

Technical Field

[0001] This utility model relates to the field of crane machinery and equipment manufacturing, and in particular to an automatic positioning and assembly equipment for main beam end beams. Background Technology

[0002] During the assembly of the main beam and end beams of the crane, accurately ensuring the span, diagonal difference, and levelness of the frame are crucial for quality control. Currently, assembling the main beam and end beams requires placing both end beams on supports and relying on basic tools such as measuring tapes and levels, with two workers repeatedly working together to measure and adjust. The various dimensional parameters are interdependent, requiring multiple cycles of "measurement-adjustment-verification," a cumbersome, inefficient, time-consuming, and labor-intensive process.

[0003] Of particular concern is the lack of dedicated positioning fixtures in this method. More importantly, after assembling each main beam and end beam, all the above steps must be repeated before assembling the next one, making it impossible to achieve rapid and accurate batch assembly.

[0004] Based on the above-mentioned technical problems, this utility model proposes an automatic positioning and assembly device for the end beams of the main beam. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide an automatic positioning and assembly device for the main beam end beam to solve the above-mentioned technical problems.

[0006] This utility model is achieved through the following technical solution: an automatic positioning and assembly device for main beam end beams, including a base, with end beam conveying devices provided at both ends of the base, the end beam conveying devices being located above the base, and the end beam conveying devices including an end beam moving device, an end beam height adjusting device, and an end beam positioning device.

[0007] Furthermore, the end beam moving device is I-shaped, the end beam moving device is mounted on the base, a driving device is provided between the end beam moving device and the base, and columns are fixedly installed on both sides of the end beam moving device.

[0008] Furthermore, the end beam height adjustment device is mounted on the end beam moving device and fixed inside the two end beam moving devices, and the working end of the end beam height adjustment device is used to support the end beam.

[0009] Furthermore, the end beam positioning device is positioned directly above the end beam height adjustment device and fixed to the top of the column. The end beam positioning device includes a positioning slider and a sliding groove. The top of the positioning slider is located in the sliding groove, and springs are provided at both ends of the positioning slider. An arc-shaped groove is formed at the bottom end of the positioning slider.

[0010] Furthermore, a guide rail is provided between the base and the end beam conveying device, the guide rail is fixedly connected to the base, and limit blocks are provided at both ends of the guide rail.

[0011] Furthermore, a rack is provided on the inner side of the guide rail, the rack is fixed to the guide rail, the rack is provided at both ends of the base, and the rack is positioned below the end beam moving device.

[0012] Furthermore, the driving device includes a drive motor and wheels. The wheels are located at the four corners of the moving device and are divided into two groups. One group of wheels is used to bear pressure and directly contacts the upper surface of the guide rail. The other group of wheels serves as guide wheels, is horizontally arranged and contacts the inner side of the guide rail. The drive motor serves as the driving source for the end beam conveying device.

[0013] Furthermore, the drive motor is located at the bottom of the end beam conveying device, and a drive gear is provided at its working end. The drive gear meshes with a rack on the guide rail.

[0014] Furthermore, a main beam support device is provided at the middle position of the base, and there are two or more main beam support devices, which can adjust the position of the main beam vertically.

[0015] Furthermore, two positioning columns are provided on the upper surface of the main beam support device, and the positioning columns limit the position of the main beam.

[0016] The beneficial effects of this utility model are as follows: An automatic positioning and assembly device for main beam end beams includes a base, with end beam conveying devices installed at both ends of the base. The end beam conveying devices are positioned above the base and include an end beam moving device, an end beam height adjusting device, and an end beam positioning device. This assembly device utilizes the end beam conveying device to adjust the displacement of the end beams. The end beam moving device drives a drive gear to mesh with a rack on a guide rail, achieving precise horizontal movement of the end beams. The height adjusting device, in conjunction with the positioning device, adjusts the position of the end beams, allowing for flexible adjustment of the end beam height according to the height requirements of the main beam. This ensures precise alignment between the end beams and the main beam in the height direction, preventing deviation of the end beams during subsequent operations and ensuring the accuracy and stability of the entire assembly process. This assembly device has a compact structure and is easy to operate. It achieves automated positioning, significantly reducing reliance on operator experience. Once initially calibrated, the equipment can be used stably for a long period, requiring only periodic verification. This significantly improves the assembly efficiency and quality consistency of the main beam and end beams. Furthermore, the design of the end beam positioning slider allows it to adapt to end beams of different sizes, expanding the equipment's applicability. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the end beam assembly structure; Figure 3 This is a schematic diagram of the walking trolley structure; Figure 4 This is a schematic diagram of the positioning beam structure; Figure 5 for Figure 2 Enlarged view of point A in the middle; Figure 6 for Figure 3 Enlarged diagram of point B in the middle.

[0018] In the diagram: 1. Base; 11. Track; 12. Main beam support device; 2. Traveling trolley; 21. Lifting cylinder; 22. Wheel; 23. Horizontal wheel; 24. Rack; 3. Mounting frame; 4. Main beam; 41. End beam; 42. Positioning wheel; 5. Positioning crossbeam; 51. Positioning slider; 52. Spring; 6. Reducer; 61. Gear; 62. Scale. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0020] Example 1 like Figure 1-6 As shown, an automatic positioning and assembly device for main beam end beams includes a base 1, which consists of two parallel H-beams fixed on the ground. Guide rails 11 are installed above the base, located at both ends of the base 1. A rack 24 is installed on the inner side wall of each guide rail 11, and a scale 62 is installed below the rack 24 to adjust the installation accuracy of the rack 24. In this embodiment, the main beam span is 16.5 meters to 19.5 meters, the length of a single H-beam is 23 meters, and the center distance of the guide rails 11 is 3 meters.

[0021] An end beam moving device is installed on the guide rail 11. The end beam moving device is a traveling trolley 2, which consists of two frame end beams and two connecting beams, one large and one small. Two flange plates are welded on it for installing the uprights and positioning crossbeams 5. A drive reducer 6 is installed on the frame of the traveling trolley 2. A gear 61 is installed on the working end of the reducer 6, and the gear 61 meshes with the rack 24. A device for adjusting the height of the end beam 41 is welded on the inner side of the traveling trolley 2. The end beam height adjustment device is a lifting cylinder 21. Two sets of wheels are installed at the four corners of the frame of the traveling trolley 2. One set of wheels 22 contacts the upper surface of the guide rail. There are four wheels 22. The wheels 22 are on the same plane to ensure the smooth operation of the traveling trolley. The other set is horizontal wheels 23. The horizontal wheels 23 contact the inner surface of the guide rail. There are four horizontal wheels 23. The horizontal wheels 23 are used for guidance to ensure the straight operation of the traveling trolley.

[0022] The end beam positioning device is a positioning crossbeam 5. Positioning sliders 51 are installed on both sides of the positioning crossbeam 5. The top of the positioning sliders 51 is installed in the groove of the positioning crossbeam 5. Springs 52 are installed on both sides of the positioning sliders. When there is no external force, the positioning sliders 51 are located in the center of the groove. The lower end of the positioning sliders 51 has an arc-shaped groove that matches the outer diameter of the wheel of the end beam 41. When positioning the end beam 41, the lifting cylinder 21 lifts the end beam 41 upward into the arc-shaped groove of the positioning slider 51 to achieve the positioning of the end beam 41. Since the positioning sliders 51 are installed in the groove and the springs 52 are installed on both sides of the positioning sliders 51, when the end beam 41 moves upward, it can ensure that the wheel of the end beam can smoothly enter the arc-shaped groove of the positioning sliders 51, so that the positioning device can be applied to end beams of various sizes.

[0023] A main beam support device 12 is installed on the ground between two bases 1. There are two or more main beam support devices 12. A positioning column is welded to the upper end face of the main beam support device 12. The spacing between the positioning columns is the width of the main beam 4. The positioning columns are used to limit the position of the main beam 4. A lift for lifting the main beam is installed below the main beam support device 12.

[0024] In use, the CNC system controls the reducer to operate, and the traveling trolley 2 at one end moves and is fixed in a preset position. A crane lifts the end beam 41 onto the lifting cylinder 21 under the positioning crossbeam 5. The lifting cylinder 21 slowly lifts the end beam 41 until the outer circle of the end beam wheel fits into the arc of the positioning slider 51. During the lifting process, the positioning slider 51 can float laterally along the groove, adapting to the position of the end beam wheel, ultimately making the outer circle of the wheel fit tightly into the arc groove of the positioning slider, so that the wheel is pressed against the positioning surface of the positioning crossbeam 5, completing the positioning. A hydraulic lock is used to maintain stable pressure after tightening, or a low-pressure oil supply is continuously used to ensure that the end beam is never loose; the other end beam is installed in the same way.

[0025] After the end beam 41 is positioned, the main beam 4 is hoisted onto the main beam support device 12. The positioning columns on the main beam support device 12 clamp the two sides of the main beam 4 to ensure the perpendicularity of the main beam 4 and the end beam 41. After the main beam 4 is placed, the traveling trolley 2 at the other end is controlled to move to the preset position. The elevator of the main beam support is operated to lift the main beam 4 and raise it to the position where it is connected with the end beam 41. The main beam 4 and the end beam 41 are welded. After the welding is completed, the lifting cylinder 21 under the end beam is lowered, and the traveling trolleys 2 at both ends are moved backward by 1 to 2 meters. The assembled beam is then lifted away using a hoisting device.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic positioning and assembly device for main beam end beams, comprising a base, characterized in that, Both ends of the base are provided with end beam conveying devices, which are located above the base. The end beam conveying devices include an end beam moving device, an end beam height adjusting device, and an end beam positioning device.

2. The automatic positioning and assembly equipment for main beam end beams according to claim 1, characterized in that, The end beam moving device is "I" shaped and is mounted on the base. A driving device is provided between the end beam moving device and the base, and columns are fixedly installed on both sides of the end beam moving device.

3. The automatic positioning and assembly equipment for main beam end beams according to claim 1, characterized in that, The end beam height adjustment device is installed on the end beam moving device and fixed inside the two end beam moving devices. The working end of the end beam height adjustment device is used to support the end beam.

4. The automatic positioning and assembly equipment for main beam end beams according to claim 1, characterized in that, The end beam positioning device is located directly above the end beam height adjustment device and fixed to the top of the column. The end beam positioning device includes a positioning slider and a slide groove. The top of the positioning slider is located in the slide groove, and springs are provided at both ends of the positioning slider. An arc-shaped groove is opened at the bottom of the positioning slider.

5. The automatic positioning and assembly equipment for main beam end beams according to claim 1, characterized in that, A guide rail is provided between the base and the end beam conveying device. The guide rail is fixedly connected to the base, and limit blocks are provided at both ends of the guide rail.

6. The automatic positioning and assembly equipment for main beam end beams according to claim 5, characterized in that, A rack is provided on the inner side of the guide rail, the rack is fixed to the guide rail, the rack is provided at both ends of the base, and the rack is positioned below the end beam moving device.

7. The automatic positioning and assembly equipment for main beam end beams according to claim 2, characterized in that, The driving device includes a drive motor and wheels. The wheels are located at the four corners of the moving device and are divided into two groups. One group of wheels is used to bear pressure and directly contacts the upper surface of the guide rail. The other group of wheels serves as guide wheels, which are horizontally positioned and contact the inner side of the guide rail. The drive motor serves as the driving source for the end beam conveying device.

8. The automatic positioning and assembly equipment for main beam end beams according to claim 7, characterized in that, The drive motor is located at the bottom of the end beam conveying device, and a drive gear is provided at its working end. The drive gear meshes with a rack on the guide rail.

9. The automatic positioning and assembly equipment for main beam end beams according to claim 1, characterized in that, A main beam support device is provided in the middle of the base. There are two or more main beam support devices, which can adjust the position of the main beam vertically.

10. The automatic positioning and assembly equipment for main beam end beams according to claim 9, characterized in that, Two positioning columns are provided on the upper surface of the main beam support device, and the positioning columns limit the position of the main beam.

Images