An adaptive synchronous drive mechanism

Abstract

The present invention relates to an adaptive synchronous drive mechanism, which includes a driving member, a follower member and a guide rail. The driving member and the follower member are both mounted on the guide rail. A slider is fixed to the rear end of the driving member, and a horizontal slide rail perpendicular to the guide rail is provided at the front end of the follower member. The horizontal slide rail is used to dock with the slider. Compared with the prior art, the present invention provides a horizontal slide rail and a slider between the driving member and the follower member. When the gap between the follower member and the guide rail changes in the working and non-working states, the driving member moves relative to the follower member through the horizontal slide rail and the slider, and still maintains the original accuracy with the guide rail to ensure normal operation.

Description

Technical Field

[0001] The invention relates to the field of mechanical equipment, and in particular to an adaptive synchronous drive mechanism. Background Art

[0002] The deck structure of an offshore platform is mainly composed of panels, steel beams, supporting columns and other components. During the manufacturing process, it is necessary to plan and mark the installation positions of steel beams, supporting columns and other components on the deck panels, then install the steel beams and other components, and finally automatically weld them into a deck structure.

[0003] At present, intelligent assembly gantry is usually used to realize full-automatic marking and assembly. Intelligent assembly gantry is generally driven by gear rack. The load of the gantry system is quite different when it is working and not working, and there is a certain error in the acceleration and deceleration process. The accuracy requirement of the running drive gear is higher than the operation accuracy of the gantry. Therefore, the two are prone to mutual influence, resulting in additional load and other problems, affecting normal work. Summary of the invention

[0004] The purpose of the present invention is to provide an adaptive synchronous drive mechanism to overcome the defects of the above-mentioned prior art, so as to achieve isolation of the drive and the door frame and avoid mutual influence.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] An adaptive synchronous drive mechanism comprises a driving member, a follower and a guide rail, wherein the driving member and the follower are both mounted on the guide rail, a slider is fixed to the rear end of the driving member, and a horizontal slide rail perpendicular to the guide rail is provided at the front end of the follower, and the horizontal slide rail is used to dock with the slider.

[0007] In another preferred embodiment, a first concave-convex pattern is provided in the horizontal slide rail, and a second concave-convex pattern is provided on the surface of the slider. When the horizontal slide rail is connected to the slider, the first concave-convex pattern fits into the second concave-convex pattern.

[0008] In another preferred embodiment, the driving member includes a bracket, and a guide wheel module and a driving module mounted on the bracket, the guide wheel module and the driving module clamp the guide rail from two sides respectively, and the horizontal slide rail is fixed on the bracket.

[0009] In another preferred example, the driving module includes a motor and a driving gear connected to an output shaft of the motor, a rack is provided on one side of the guide rail, and the driving gear is meshed with the rack.

[0010] In another preferred example, the guide wheel module includes an eccentric shaft and a guide wheel, the eccentric shaft includes a first shaft rod and a second shaft rod, the second shaft rod is fixed to the bottom of the first shaft rod, and the axes of the first shaft rod and the second shaft rod are staggered, and the guide wheel is fixed on the second shaft rod for contacting the guide rail.

[0011] In another preferred example, the guide wheel module also includes an anti-rotation plate, which is provided with a through hole of a geometric shape, and the top of the first shaft is provided with a column matching the shape of the through hole, and after the through hole of the anti-rotation plate is connected to the column, one side edge of the anti-rotation plate abuts against the bracket to limit the rotation of the anti-rotation plate.

[0012] In another preferred embodiment, the outer edge of the anti-rotation plate is a first regular polygon, the through hole of the anti-rotation plate is a second regular polygon, and the first regular polygon and the second regular polygon are coaxially arranged.

[0013] In another preferred embodiment, a threaded column is provided on the top of the first shaft, a mounting hole is provided on the bracket, and the threaded column passes through the mounting hole and is fixed by a nut.

[0014] In another preferred embodiment, the guide wheel is an annular guide wheel sleeved on the outer ring of the second shaft.

[0015] In another preferred embodiment, the follower is a portal support foot, and the portal support foot is installed on the guide rail through wheels.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention sets a horizontal slide rail and a slider between the driving member and the follower. When the follower is in working and non-working state, the gap between the follower and the guide rail changes. The driving member moves relative to the follower through the horizontal slide rail and the slider, and still maintains the original accuracy with the guide rail to ensure normal operation.

[0018] 2. The horizontal slide rails and sliders are provided with interlocking concave and convex patterns to improve the connection stability.

[0019] 3. The drive module drives the mechanism to move through the driving gear structure and the guide wheel, and the movement is smooth and stable.

[0020] 4. An eccentric shaft is set in the guide wheel module to fix the guide wheel. The gap between the guide wheel and the drive module can be adjusted by rotating the eccentric shaft to ensure that the two have the most appropriate gap with the guide rail, thereby ensuring the accuracy of the drive module operation. It can be applied to intelligent assembly gantry.

[0021] 5. The guide wheel module is equipped with an anti-rotation plate, which can lock the adjusted eccentric shaft to prevent its rotation angle from changing, and has strong reliability.

[0022] 6. The outer edge and the through hole of the anti-rotation plate adopt a regular polygon with the same axis center. This shape structure can evenly divide the rotation angle and at the same time take into account the angular fine adjustment and fixation of the eccentric shaft.

[0023] 7. The guide wheel adopts an annular guide wheel, which has a simple structure and good stability. Description of the Drawings

[0024] Figure 1 It is a schematic structural diagram of the bottom of the intelligent gantry support leg.

[0025] Figure 2 It is a schematic side view structural diagram of the present invention.

[0026] Figure 3 It is a schematic front view structural diagram of the present invention.

[0027] Figure 4 It is Figure 3 the A-A cross-sectional schematic diagram of

[0028] Figure 5 It is a schematic structural diagram of the eccentric shaft.

[0029] Figure 6 It is Figure 5 the B-B cross-sectional schematic diagram of

[0030] Figure 7 It is a schematic structural diagram of the anti-rotation plate.

[0031] Reference numerals: 1. Driving member, 11. Bracket, 111. Side plate, 112. Top plate, 113. Bottom plate, 12. Motor, 13. Driving gear, 14. Eccentric shaft, 141. First shaft rod, 142. Second shaft rod, 15. Guide wheel, 16. Anti-rotation plate, 17. Threaded column, 18. Column body, 19. Connecting portion, 2. Follower member, 3. Guide rail, 31. Rack, 4. Slide block, 5. Horizontal slide rail, 6. Wheel. Detailed Embodiments

[0032] Unless otherwise defined, the technical terms or scientific terms used in this specification and the claims shall have the ordinary meanings understood by those of ordinary skill in the technical field to which the present invention belongs.

[0033] All numerical values listed herein from the lowest value to the highest value refer to all numerical values obtained by incrementing by one unit between the lowest value and the highest value when the difference between the lowest value and the highest value is more than two units.

[0034] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention.

[0035] In addition, the terms "first", "second", etc. are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0036] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific circumstances.

[0037] The present invention will be described in detail below with reference to the drawings and in conjunction with specific embodiments. It should be noted that in the specific description of these embodiments, for the sake of concise description, this specification cannot describe all the features of the actual embodiments in detail.

[0038] Embodiment

[0039] As Figure 1 shown, this embodiment provides a bottom structure of an intelligent gantry, including a driving member 1, a follower member 2, and a guide rail 3. The driving member 1 and the follower member 2 are arranged front and rear and connected, and are jointly mounted on the guide rail 3. The driving member 1 can drive the follower member 2 to move. In this embodiment, the follower member 2 is a gantry support leg, and is specifically mounted on the guide rail 3 through wheels 6, as shown in Figure 2 .

[0040] As Figure 2As shown, a slider 4 is fixed at the rear end of the driver 1, and a horizontal slide rail 5 perpendicular to the guide rail 3 is provided at the front end of the follower 2. The driver 1 and the follower 2 are connected by the slider 4 and the horizontal slide rail 5. Therefore, when the gap between the follower 2 and the guide rail 3 changes in the working and non-working state, the driver 1 moves relative to the guide rail 3 through the horizontal slide rail 5, the slider 4 and the follower 2, and still maintains the original accuracy with the guide rail 3, which can ensure normal operation. In another preferred embodiment, a first concave-convex texture is provided in the horizontal slide rail 5, and a second concave-convex texture is provided on the surface of the slider 4. When the horizontal slide rail 5 is connected to the slider 4, the first concave-convex texture is embedded in the second concave-convex texture to improve the smoothness and stability of the connection between the two.

[0041] like Figure 3 and Figure 4 As shown, the driving member 1 includes a bracket 11, and a guide wheel module and a driving module installed on the bracket 11, and the guide wheel module and the driving module clamp the guide rail 3 from both sides respectively.

[0042] The bracket 11 includes a side plate 111, a top plate 112 and a bottom plate 113. The front side of the side plate 111 is connected to the top plate 112 and the bottom plate 113. The top plate 112 and the bottom plate 113 are arranged in parallel up and down. A slider 4 is arranged on the rear side of the side plate 111 for docking with the follower 2. Each guide wheel module includes an eccentric shaft 14, a guide wheel 15 and an anti-rotation plate 16. The eccentric shaft 14 is fixed on the top plate 112 and the bottom plate 113. The guide wheel 15 is installed at the bottom of the eccentric shaft 14, and the anti-rotation plate 16 is installed on the top of the eccentric shaft 14. The drive module includes a motor 12 and a drive gear 13 connected to the output shaft of the motor 12. A rack 31 is arranged on one side of the guide rail 3, and the drive gear 13 is meshed with the rack 31. As a result, the guide rail 3 is clamped between the guide wheel 15 and the drive gear 13. When the motor 12 is started, the driving mechanism moves on the guide rail 3 as a whole.

[0043] like Figure 5 and Figure 6 As shown, the eccentric shaft 14 includes a first shaft rod 141 and a second shaft rod 142. The second shaft rod 142 is fixed to the bottom of the first shaft rod 141, and the axes of the first shaft rod 141 and the second shaft rod 142 are staggered. At the same time, the diameter of the second shaft rod 142 is larger than the diameter of the first shaft rod 141, so that a bottom step surface is formed between the second shaft rod 142 and the first shaft rod 141. A connecting portion 19, a geometric column 18 and a threaded column 17 are sequentially arranged at the top of the first shaft rod 141 from bottom to top. The diameter of the connecting portion 19 is smaller than the diameter of the first shaft rod 141, so that a top step surface is formed between the connecting portion 19 and the top of the first shaft rod 141. Two mounting holes are provided on the top plate 112 and the bottom plate 113, and the eccentric shaft 14 is fixed in the mounting holes, combined with Figure 3 and Figure 5, specifically as follows: The first shaft rod 141 sequentially passes through the mounting holes of the bottom plate 113 and the top plate 112. At this time, the bottom step surface abuts against the bottom surface of the bottom plate 113 for limit; meanwhile, the connecting portion 19 of the first shaft rod 141 penetrates into the mounting hole of the top plate 112. It should be noted that the height of the connecting portion 19 is slightly less than the thickness of the top plate 112, and the cylindrical body 18 and the threaded column 17 with geometric shapes protrude from the top of the top plate 112. The anti-rotation plate 16 is first sleeved on the cylindrical body 18, and then a nut is screwed onto the threaded column 17 to fix the entire eccentric shaft 14 and the bracket 11. The anti-rotation plate 16 is provided with a through hole matching the cylindrical body 18 with geometric shapes, and one side of the anti-rotation plate 16 can abut against the side plate 111 to prevent itself from rotating. Therefore, the setting of the anti-rotation plate 16 can lock the adjusted eccentric shaft 14 to prevent its rotation angle from changing. The guide wheel 15 is an annular guide wheel 15, sleeved on the outer ring of the second shaft rod 142. The annular guide wheel 15 has a simple structure and good stability.

[0044] During use: The guide wheel 15 is fixed by setting the eccentric shaft 14. By rotating the angle of the eccentric shaft 14, the gap between the guide wheel 15 and the driving gear can be adjusted, that is, the gap among the guide wheel 15, the driving gear and the guide rail can be adjusted, so as to realize the adjustment of the most suitable gap and ensure the installation accuracy. After the gap adjustment is completed, the anti-rotation plate 16 is sleeved on the cylindrical body 18 and then the nut is tightened to fix the position.

[0045] In another preferred embodiment, the outer edge and the through hole of the anti-rotation plate 16 adopt coaxial regular polygons. This shape structure can evenly divide the rotation angle and at the same time take into account the fine adjustment and fixation of the angle of the eccentric shaft 14. For example, as Figure 7 shown, the outer edge of the anti-rotation plate 16 is the first regular polygon with the number of sides being ; the through hole of the anti-rotation plate 16 is the second regular polygon with the number of sides being ; there is a certain deviation angle between the regular octagon and the regular hexagon. Thus, when each side of the regular octagon abuts against the side plate 111, the internal eccentric shaft 14 can be adjusted at 6 angles. In this way, there are a total of 48 combinations inside and outside, which can evenly divide the circumference and the eccentricity, taking into account both stability and accuracy.

[0046] The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of the present invention without creative labor. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field of the present invention based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the protection scope determined by the claims.

Claims

1. An adaptive synchronous drive mechanism, It is characterized in that The invention comprises a driving member (1), a follower (2) and a guide rail (3), wherein the driving member (1) and the follower (2) are both mounted on the guide rail (3), a slider (4) is fixed to the rear end of the driving member (1), and a horizontal slide rail (5) perpendicular to the guide rail (3) is arranged at the front end of the follower (2), and the horizontal slide rail (5) is used to dock with the slider (4); The driving member (1) comprises a bracket (11), and a guide wheel module and a driving module mounted on the bracket (11), the guide wheel module and the driving module clamping the guide rail (3) from two sides respectively, and the horizontal slide rail (5) is fixed on the bracket (11); The driving module comprises a motor (12) and a driving gear (13) connected to an output shaft of the motor (12); a rack (31) is provided on one side of the guide rail (3); and the driving gear (13) is meshed with the rack (31); The guide wheel module comprises an eccentric shaft (14) and a guide wheel (15); the eccentric shaft (14) comprises a first shaft rod (141) and a second shaft rod (142); the second shaft rod (142) is fixed to the bottom of the first shaft rod (141), and the axes of the first shaft rod (141) and the second shaft rod (142) are staggered; the guide wheel (15) is fixed to the second shaft rod (142) for contacting the guide rail (3).

2. An adaptive synchronous drive mechanism according to claim 1, It is characterized in that The horizontal slide rail (5) is provided with a first concavo-convex pattern, and the surface of the slider (4) is provided with a second concavo-convex pattern. When the horizontal slide rail (5) is connected to the slider (4), the first concavo-convex pattern fits into the second concavo-convex pattern.

3. The adaptive synchronous drive mechanism according to claim 1, It is characterized in that The guide wheel module also includes an anti-rotation plate (16), the anti-rotation plate (16) is provided with a through hole of a geometric shape, the top of the first shaft (141) is provided with a column (18) whose shape matches that of the through hole, and after the through hole of the anti-rotation plate (16) is connected to the column (18), one side edge of the anti-rotation plate (16) abuts against the bracket (11), thereby limiting the rotation of the anti-rotation plate (16).

4. An adaptive synchronous drive mechanism according to claim 3, It is characterized in that The outer edge of the anti-rotation plate (16) is a first regular polygon, the through hole of the anti-rotation plate (16) is a second regular polygon, and the first regular polygon and the second regular polygon are coaxially arranged.

5. The adaptive synchronous drive mechanism according to claim 1, It is characterized in that A threaded column (17) is provided at the top of the first shaft (141), a mounting hole is provided on the bracket (11), and the threaded column (17) passes through the mounting hole and is fixed by a nut.

6. The adaptive synchronous drive mechanism according to claim 1, It is characterized in that Therefore, the guide wheel (15) is an annular guide wheel, which is sleeved on the outer ring of the second shaft (142).

7. An adaptive synchronous drive mechanism according to claim 1, characterized in that, the follower (2) is a gantry support leg, and the gantry support leg is mounted on the guide rail (3) through wheels (6).

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