Rail aligning mechanism

Abstract

The rail aligning mechanism comprises a fixed rail which is fixedly mounted; the movable track moves in the direction perpendicular to the fixed track and can be in butt joint with the fixed track; the guide seats are respectively arranged on the fixed track and the movable track, each guide seat comprises a mounting seat with a cross-shaped structure, and rotatable guide wheels are arranged at four end parts in each mounting seat; and the guide rod is arranged on the fixed rail in a telescopic mode, the guide rod is of a square structure, and when the guide rod makes contact with the guide seat, the guide rod is inserted into the center of the guide seat under the action of the guide wheel to achieve rail alignment. The rail aligning device is compact and reasonable in structure and convenient to operate, the cross-shaped guide seat and the square guide rod are adopted, and the guide wheels are arranged at the four ends of the guide seat respectively, so that the rail aligning range of the guide rod and the guide seat can be widened, the rail aligning precision is improved, and the rail aligning device has very high practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of conveyor lines, in particular to a rail alignment mechanism. Background Art

[0002] When the upper and lower levels are changing lines for transportation, when the elevator rises or descends to its position, the movable track and the fixed track need to be positioned by the rail device.

[0003] In the prior art, the pin hole is used for positioning. The cylindrical pin is driven by the cylinder, the end of the cylindrical pin has a tapered guide head, and the positioning hole is a round hole. Positioning is performed by the pin hole. If the position of the movable rail and the fixed rail is slightly deviated, the cylindrical pin is completely relied on to enter the positioning hole. Since it is a sliding surface contact, the friction coefficient is relatively large, and the positioning pin needs a greater force to accurately enter the positioning hole. In the prior art, if the initial position has a large deviation, the pin hole positioning cannot accurately enter the guide positioning hole.

[0004] To this end, we propose a track alignment mechanism. Utility Model Content

[0005] In view of the shortcomings of the above-mentioned existing production technology, the applicant provides a rail alignment mechanism, which improves the rail alignment accuracy by adopting a cross-shaped guide seat and a square guide rod.

[0006] The technical solution adopted by the utility model is as follows:

[0007] include:

[0008] Fixed track, its fixed installation;

[0009] A movable track, which moves in a direction perpendicular to the fixed track and can dock with the fixed track;

[0010] The guide seat is respectively arranged on the fixed track and the movable track, and comprises a mounting seat in a cross-shaped structure, and rotatable guide wheels are arranged at the four ends of the mounting seat;

[0011] The guide rod is telescopically arranged on the fixed track and has a square structure. When the guide rod contacts the guide seat, it is inserted into the center of the guide seat under the action of the guide wheel to realize track alignment.

[0012] It is further characterized by:

[0013] The end of the guide rod is in a wedge-shaped structure, and chamfers are arranged at the corners of the square guide rod.

[0014] It also includes a cylinder which is fixedly connected to the fixed track, and an output shaft of which is connected to the guide rod and controls the extension and retraction of the guide rod.

[0015] The cylinder is connected to the guide rod via a double elbow joint.

[0016] The guide seat is butted against the track via a mounting plate.

[0017] The mounting base also includes:

[0018] There are four rotating shafts, and the four rotating shafts are vertically inserted into the ends of the mounting seat;

[0019] A bearing, which is nested between the rotating shaft and the guide wheel;

[0020] The pressure plate is fixed on the mounting seat and clamped into a groove arranged on the rotating shaft to position the rotating shaft.

[0021] An oil channel is provided on the rotating shaft and extends to the bearing to lubricate the bearing.

[0022] The beneficial effects of the utility model are as follows:

[0023] The utility model has a compact and reasonable structure and is easy to operate. By adopting a cross-shaped guide seat and a square guide rod, guide wheels are respectively provided at the four ends of the guide seat, which can increase the rail alignment range of the guide rod and the guide seat, improve the rail alignment accuracy, and has strong practicality.

[0024] At the same time, the utility model also has the following advantages:

[0025] (1) By adopting a cross-shaped mounting seat 302, rapid docking in the horizontal and vertical directions can be achieved. Because the movable track 200 moves in a direction perpendicular to the fixed track 100, a cross-shaped structure is adopted in the horizontal direction, which can increase the contact range between the guide wheel and the guide rod 400. In addition, the guide wheel 305 can rotate. Therefore, after the guide rod 400 is inserted, as long as the contact is within the half area of ​​the center of the guide wheel 305 mounting seat 302, the track can be aligned, thereby improving the accuracy of the track alignment.

[0026] (2). Since the mounting base 302 is a cross-shaped structure and guide wheels 305 are provided at the four ends, a square hole is reserved in the center of the mounting base 302, and the guide rod 400 is a square structure that can be snapped into the square hole, thereby achieving precise horizontal positioning and horizontal and vertical positioning.

[0027] (3) The end of the guide rod 400 is wedge-shaped, and its beveled edge is more convenient to cooperate with the guide wheel 305 and inserted into the guide seat 300. Chamfers are provided at the corners of the square guide rod 400 to reduce collision with the corners of the mounting seat 302 and to facilitate alignment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the utility model.

[0029] Figure 2 It is a structural schematic diagram of the guide seat in the utility model.

[0030] in:

[0031] 100, fixed track; 200, movable track; 300, guide seat; 400, guide rod; 500, cylinder; 600, double elbow joint;

[0032] 301, mounting plate; 302, mounting seat; 303, rotating shaft; 304, bearing; 305, guide wheel; 306, oil channel; 307, pressure plate. DETAILED DESCRIPTION

[0033] The specific implementation of the present utility model is described below in conjunction with the accompanying drawings.

[0034] like Figure 1 and Figure 2 As shown, this embodiment discloses a rail alignment mechanism, including a fixed rail 100, a movable rail 200, a guide seat 300, a guide rod 400 and a cylinder 500;

[0035] Among them, the most important features are:

[0036] The guide seat 300 is respectively arranged on the fixed track 100 and the movable track 200, and includes a mounting seat 302 with a cross-shaped structure, and rotatable guide wheels 305 are arranged at the four ends of the mounting seat 302. By adopting the mounting seat 302 with a cross-shaped structure, rapid docking in the horizontal and vertical directions can be achieved. Because the movable track 200 moves in a direction perpendicular to the fixed track 100, the cross-shaped structure is adopted in the horizontal direction, which can increase the contact range between the guide wheel and the guide rod 400. In addition, the guide wheel 305 can rotate. Therefore, after the guide rod 400 is inserted, as long as it contacts the half area of ​​the center of the guide wheel 305 mounting seat 302, the track can be aligned, thereby improving the accuracy of the track alignment;

[0037] The guide rod 400 is telescopically arranged on the fixed rail 100, and the guide rod 400 has a square structure. When the guide rod 400 contacts the guide seat 300, it is inserted into the center of the guide seat 300 under the action of the guide wheel 305 to achieve track alignment. Since the mounting seat 302 has a cross-shaped structure and guide wheels 305 are respectively provided at the four ends, a square hole groove is reserved in the center of the mounting seat 302, and the guide rod 400 has a square structure and can be just engaged in the square hole groove, thereby realizing precise positioning in the horizontal direction and realizing positioning in the horizontal and vertical directions.

[0038] like Figure 1 and Figure 2As shown, the end of the guide rod 400 is a wedge-shaped structure, and its beveled edge is more convenient to cooperate with the guide wheel 305 and inserted into the guide seat 300. Chamfers are provided at the corners of the square guide rod 400 to reduce collision with the corners of the mounting seat 302 and to facilitate alignment.

[0039] In this embodiment, Figure 1 As shown, the fixed track 100 adopts a fixed installation method and provides an installation station for other mechanisms;

[0040] The movable track 200 moves in a direction perpendicular to the fixed track 100 and can dock with the fixed track 100. In this embodiment, there is a gap of 5 mm between the movable track 200 and the fixed track 100 to avoid collision;

[0041] The cylinder 500 is fixedly connected to the fixed rail 100 , and its output shaft is connected to the guide rod 400 to control the extension and retraction of the guide rod 400 .

[0042] The cylinder 500 is connected to the guide rod 400 through a double elbow joint 600, and the opening direction of the double elbow joint 600 is on the vertical line to reduce the error in the horizontal direction.

[0043] The guide seat 300 is connected to the track through the mounting plate 301 .

[0044] In this embodiment, Figure 2 As shown, the mounting base 302 also includes:

[0045] There are four rotating shafts 303, and the four rotating shafts 303 are vertically inserted into the ends of the mounting seat 302;

[0046] A bearing 304 is nested between the rotating shaft 303 and the guide wheel 305;

[0047] The pressing plate 307 is fixed on the mounting seat 302 and is clamped into a groove provided on the rotating shaft 303 to position the rotating shaft 303 .

[0048] In this embodiment, Figure 2 As shown, an oil passage 306 is provided on the rotating shaft 303 , and the oil passage 306 extends to the bearing 304 to lubricate the bearing 304 and the guide wheel 305 .

[0049] After the rail alignment device adopts this method, the movable rail and the fixed rail can be aligned more accurately. A guide wheel 305 is set every 90 degrees, and there are 4 sets of guide wheels 305 in a circle. The 4 sets of guide wheels 305 form a four-sided guide wheel 305 group to accurately position the square tetrahedron positioning pin

[0050] By adopting the present invention, the guide rod 400 is changed from a traditional cylindrical pin to a square pin, and a guide wheel 305 is arranged at a corresponding position on each surface. The guide wheel 305 has an oil-containing bearing 304 inside, and lubricating oil can be added regularly to improve the use condition.

[0051] advantage:

[0052] 1. The guide wheels 305 in four directions are provided with oil-containing bearings 304;

[0053] 2. The four inclined surfaces of the square guide rod have a larger inclination angle, which makes it easier to guide when there is a large deviation between the movable rail and the fixed rail.

[0054] The movable track and fixed track of the door line lift adopt this invention, which can make positioning more accurate and solve the problem that the original cylindrical pin is not easy to insert.

[0055] The above description is an explanation of the utility model, not a limitation of the utility model. The scope of the utility model is defined by the claims. Any form of modification can be made within the protection scope of the utility model.

Claims

1. Rail alignment mechanism, characterized in that: include: A fixed track (100) which is fixedly installed; A movable track (200) which moves in a direction perpendicular to the fixed track (100) and can dock with the fixed track (100); A guide seat (300) is respectively arranged on the fixed track (100) and the movable track (200), and comprises a mounting seat (302) in a cross-shaped structure, and rotatable guide wheels (305) are arranged at four ends of the mounting seat (302); The guide rod (400) is telescopically arranged on the fixed track (100) and has a square structure. When the guide rod (400) contacts the guide seat (300), it is inserted into the center of the guide seat (300) under the action of the guide wheel (305) to achieve track alignment.

2. The rail alignment mechanism according to claim 1, characterized in that: The end of the guide rod (400) is in a wedge-shaped structure, and chamfers are provided at the corners of the square guide rod (400).

3. The rail alignment mechanism according to claim 1, characterized in that: It also includes a cylinder (500) which is fixedly connected to the fixed track (100), and whose output shaft is connected to the guide rod (400) and controls the extension and retraction of the guide rod (400).

4. The rail alignment mechanism according to claim 3, characterized in that: The cylinder (500) is connected to the guide rod (400) via a double elbow joint (600).

5. The rail alignment mechanism according to claim 1, characterized in that: The guide seat (300) is butted against the track via a mounting plate (301).

6. The rail alignment mechanism according to claim 1, characterized in that: The mounting seat (302) further comprises: four rotating shafts (303), and the four rotating shafts (303) are vertically plugged into the ends of the mounting seat (302); A bearing (304) is nested between the rotating shaft (303) and the guide wheel (305); The pressing plate (307) is fixed on the mounting seat (302) and is clamped into a groove provided on the rotating shaft (303) to position the rotating shaft (303).

7. The rail alignment mechanism according to claim 6, characterized in that: The rotating shaft (303) is provided with an oil passage (306), which extends to the bearing (304) to lubricate the bearing (304).

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