EMS conveying track switching mechanism

Abstract

The utility model discloses an EMS conveying track switching mechanism, which relates to the technical field of EMS conveying systems and comprises a fixed frame connector and a movable frame connector, a movable straight track connector and a movable bent track connector are respectively arranged below the movable frame connector, a plurality of walking bearing wheel connectors are arranged on the movable frame connector, and a plurality of walking bearing wheel connectors are arranged on the movable frame connector. The movable frame connector is slidably arranged on the fixed frame connector through the walking bearing wheel connector, and an electric telescopic device is connected between the movable frame connector and the fixed frame connector in the sliding direction. The production cost and the later use cost of the switching mechanism can be reduced, sliding between the movable frame connection and the fixed frame connection is rolling sliding through the walking bearing wheel connection, friction and energy loss caused in the sliding process are smaller, the service life of the switching mechanism can be prolonged, and the switching mechanism is suitable for popularization and application. Meanwhile, the switching mechanism has the advantages of being high in bearing capacity, simple in structure, durable, long in service life and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to EMS conveying system technical field, concretely is a kind of EMS conveying track switching mechanism. BACKGROUND

[0002] Electrical monorail system (EMS) is suspended in the air;Mainly including running track, suspended trolley, the structure for fixing track and control system composition.Its characteristics are durable, high speed, flexible, low energy consumption, high intelligence, efficient material conveying scheme not occupying ground space: 7 days 24 hours continuous uninterrupted operation;

[0003] EMS conveying system is widely applied in automobile manufacturing industry by virtue of many advantages, and it is mainly applied to conveying body parts and its tooling fixture in workshop or between workshops, to realize the multi-station automatic switching of automobile production line workpieces.

[0004] The patent document with the prior art publication number "CN 216188616 U" discloses a high-speed EMS track changing mechanism, including mounting frame, track changing fixed bed and track changing track assembly, although the high-speed EMS track changing mechanism of the utility model realizes the adjustment of the up-down position of the track changing track, to compensate the sinking amount when the track changing track bears trolley, to ensure the smooth walking of EMS trolley between track changing track and EMS track, and to stably complete track changing, but the track changing track assembly is slidably installed on the track changing fixed bed through slide rail, the slide rail can ensure the smooth sliding of the track changing track assembly on the track changing fixed bed, however, the structure of the slide rail is relatively complex, which not only increases the installation cost, but also needs more frequent maintenance in later period, so that the use cost in later period is also relatively high. UTILITY MODEL CONTENTS

[0005] (I) technical problem solved

[0006] In view of the deficiencies of the prior art, the utility model provides an EMS conveying track switching mechanism, which solves the problems raised in the above background technology.

[0007] (II) technical scheme

[0008] In order to achieve the above object, the utility model discloses a kind of EMS conveying track switching mechanism, including fixed frame and movable frame, the lower side of the fixed frame is equipped with normal entry section track, the lower side is equipped with normal exit section track and maintenance section track respectively, the lower side of the movable frame is equipped with movable straight track and movable curved track respectively, the movable frame is equipped with several walking bearing wheels, movable frame is slidably arranged on fixed frame by walking bearing wheel, and movable frame and fixed frame are connected with electric telescopic device along sliding direction.

[0009] Optionally, the fixed frame includes two longitudinal beams and several cross beams, the several cross beams are fixedly connected between the two longitudinal beams, and the longitudinal beam is an I-beam, and the walking bearing wheel is located inside the I-beam type longitudinal beam.

[0010] Optionally, the fixed frame is sequentially provided with a first travel switch and a second travel switch along the sliding direction of the movable frame, the first travel switch and the second travel switch are respectively connected with the electric telescopic device, and the movable frame is externally provided with a reach detection bracket for pressing the first travel switch or the second travel switch.

[0011] Optionally, the movable frame is provided with two groups of hard limit components, and the two groups of hard limit components are distributed at certain intervals along the sliding direction of the movable frame.

[0012] Optionally, the hard limit component includes a limiting bolt and a nut, the nut is fixedly connected to the movable frame, and the limiting bolt is threadedly connected to the nut.

[0013] Optionally, the utility model further includes a fixed beam arranged on the upper part of the normal entry section track and the normal exit section track, and a plurality of first connecting pieces are connected between the fixed beam and the normal entry section track and between the fixed beam and the normal exit section track.

[0014] Optionally, the fixed frame is connected with the normal entry section track, the normal exit section track and the maintenance section track through second connecting pieces.

[0015] Optionally, the movable frame is connected with the movable straight track and the movable curved track through third connecting pieces.

[0016] Optionally, the electric telescopic device is an electric push rod.

[0017] (Three) beneficial effects

[0018] Compared with the prior art, the utility model has the beneficial effects that:

[0019] 1. The movable frame is slidably mounted on the fixed frame via traveling bearing wheels. The production cost of the traveling bearing wheels is lower, thus reducing the production cost of the switching mechanism to a certain extent. Moreover, the traveling bearing wheels have high reliability and do not require too frequent maintenance, which can also reduce later maintenance costs and thus lower the later operating costs. Furthermore, the traveling bearing wheels make the sliding between the movable frame and the fixed frame a rolling sliding, resulting in less friction and energy loss during the sliding process, which can improve the service life of the switching mechanism. At the same time, the lower frictional resistance allows the switching mechanism to operate smoothly at higher speeds, making it better able to meet the requirements of high-speed switching sliding. In addition, the switching mechanism also has the advantages of strong load-bearing capacity, simple and durable structure, and long service life. Attached Figure Description

[0020] Figure 1 This is a frontal three-dimensional structural diagram of the present invention;

[0021] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0022] Figure 3 This is a rear-view three-dimensional structural diagram of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of this utility model from below;

[0024] Figure 5 This is a frontal three-dimensional structural diagram of the fixed frame of this utility model;

[0025] Figure 6 This is a frontal three-dimensional structural diagram of the movable frame of this utility model.

[0026] In the diagram: 11. Fixed frame; 1101. Longitudinal beam; 1102. Crossbeam; 12. Fixed beam; 13. First connector; 14. Second connector; 21. Movable frame; 22. Traveling load-bearing wheel; 23. Hard limit assembly; 2301. Limit bolt; 2302. Nut; 24. Third connector; 31. Electric telescopic device; 41. First limit switch; 42. Second limit switch; 43. Position detection bracket; 51. Normal entry section track; 52. Normal exit section track; 53. Maintenance section track; 54. Movable straight track; 55. Movable curved track. Detailed Implementation

[0027] Clearly, the described embodiments are merely a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all the other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the present utility model.

[0028] The utility model provides an embodiment of EMS conveying track switching mechanism: as Figure 1 、 Figures 3 to 6 The utility model discloses an embodiment of EMS conveying track switching mechanism: as shown in the drawing, including fixed frame 11 and movable frame 21, the lower side of fixed frame 11 is equipped with normal ride-in section track 51, and the lower other side is equipped with normal ride-out section track 52 and maintenance section track 53 respectively, and the lower side of movable frame 21 is equipped with movable straight track 54 and movable curved track 55 respectively, is equipped with a plurality of walking bearing wheel 22 on movable frame 21, movable frame 21 is slidably arranged on fixed frame 11 through walking bearing wheel 22, and movable frame 21 and fixed frame 11 are rolled and slid between the sliding of this, guarantee that the normal sliding between both can reduce use cost, and movable frame 21 and fixed frame 11 are connected with electric telescopic device 31 along the sliding direction, for driving movable frame 21 to slide on fixed frame 11;

[0029] Electric telescopic device 31 slides movable frame 21 on fixed frame 11 through the driving, and the position of movable straight track 54 and movable curved track 55 is adjusted synchronously, and movable straight track 54 is connected between normal ride-in section track 51 and normal ride-out section track 52, or movable curved track 55 is connected between normal ride-in section track 51 and maintenance section track 53, so that normal ride-in section track 51 and normal ride-out section track 52 are communicated through movable straight track 54, or normal ride-in section track 51 and maintenance section track 53 are communicated through movable curved track 55;

[0030] When normal ride-in section track 51 and normal ride-out section track 52 are communicated, normal ride-in section track 51 and maintenance section track 53 are in the uncommunicated state, and at this moment, EMS walking trolley can move along normal ride-in section track 51, movable straight track 54 and normal ride-out section track 52 and carry out normal workpiece conveying work;

[0031] When normal ride-in section track 51 and maintenance section track 53 are communicated, normal ride-in section track 51 and normal ride-out section track 52 are in the uncommunicated state, and at this moment, EMS walking trolley can move along normal ride-in section track 51 and movable curved track 55 and arrive on maintenance section track 53;

[0032] In summary, when the EMS walking trolley along the normal entry section track 51, the movable straight track 54 and the normal exit section track 52 needs to be repaired, the telescopic end of the electric telescopic device 31 can be manually controlled to slide, thereby driving the control movable frame 21 to slide. At this time, the normal entry section track 51 and the normal exit section track 52 can be disconnected, and the normal entry section track 51 and the maintenance section track 53 are connected, thereby transferring the EMS walking trolley to the maintenance section track 53 for repair. Then, the movable frame 21 is slid back to the original position to connect the normal entry section track 51 and the normal exit section track 52. At this time, other EMS walking trolleys can also work normally along the normal entry section track 51, the movable straight track 54 and the normal exit section track 52. Therefore, when a group of EMS walking trolleys needs to be repaired, only the corresponding EMS walking trolley needs to be removed for repair, without the need for whole line shutdown repair, thereby ensuring the normal work of other EMS walking trolleys and improving the utilization rate and production efficiency of the line.

[0033] The electric telescopic device 31 is an electric push rod, which can make the movable frame 21 slide with high precision, convenient operation, low noise operation and high reliability.

[0034] As shown in Figure 1 and Figure 3 , the fixed frame 11 includes two longitudinal beams 1101 and two transverse beams 1102, the two transverse beams 1102 are fixedly connected between the two longitudinal beams 1101, and the longitudinal beam 1101 is an I-beam. The walking bearing wheel 22 is located inside the I-beam type longitudinal beam 1101, and the upper and lower flanges and the middle web of the I-beam type longitudinal beam 1101 can limit the walking bearing wheel 22 to a certain extent to prevent the walking bearing wheel 22 from derailing and ensure the stability of the sliding and switching process of the movable frame 21.

[0035] As shown in Figure 1 , Figure 2 , Figure 5 and Figure 6 , the fixed frame 11 is provided with a first travel switch 41 and a second travel switch 42 in sequence along the sliding direction of the movable frame 21. The first travel switch 41 and the second travel switch 42 are respectively connected with the electric telescopic device 31. The outside of the movable frame 21 is provided with a position detection bracket 43 for pressing the first travel switch 41 or the second travel switch 42;

[0036] When the electric push rod drives the movable frame 21 to slide on the fixed frame 11 to switch, the position detection bracket 43 also slides with the movable frame 21, and when the movable straight track 54 slides to the normal entry section track 51 and the normal exit section track 52 and connects the normal entry section track 51 and the normal exit section track 52, the position detection bracket 43 just presses the first travel switch 41, at this time, the first travel switch 41 can control the telescopic end of the electric push rod to stop sliding, and thus the movable straight track 54 is accurately slid and stopped between the normal entry section track 51 and the normal exit section track 52;

[0037] When the movable curved track 55 slides to the normal entry section track 51 and the maintenance section track 53 and connects the normal entry section track 51 and the maintenance section track 53, the position detection bracket 43 just presses the second travel switch 42, at this time, the second travel switch 42 can also control the telescopic end of the electric push rod to stop sliding, and thus the movable curved track 55 is accurately slid and stopped between the normal entry section track 51 and the maintenance section track 53;

[0038] Therefore, the first travel switch 41 and the second travel switch 42 can timely limit the switching sliding of the movable frame 21, and thus the purpose of accurately positioning the movable straight track 54 or the movable curved track 55 to the specified position in switching is achieved, so as to improve the switching work accuracy and ensure that the movable straight track 54 and the normal entry section track 51 and the normal exit section track 52 or the movable curved track 55 and the normal entry section track 51 and the maintenance section track 53 can be accurately connected.

[0039] As shown in Figure 4 As shown in Figure 6 Two groups of hard limiting components 23 are arranged on the movable frame 21, and the two groups of hard limiting components 23 are distributed according to a certain interval along the sliding direction of the movable frame 21;

[0040] Moreover, the two groups of hard limiting components 23 are arranged at two ends of the movable frame 21, when the movable straight track 54 slides to the normal entry section track 51 and the normal exit section track 52 and connects the two, one group of hard limiting components 23 just contacts the fixed frame 11, and thus the movable frame 21 is limited, to prevent the movable frame 21 from further sliding;

[0041] When the movable curved track 55 slides to the normal entry section track 51 and the maintenance section track 53 and connects the two, the other group of hard limiting components 23 also just contacts the fixed frame 11, and thus the movable frame 21 is also limited, to prevent the movable frame 21 from further sliding;

[0042] In summary, the two groups of hard limiting components 23 can further limit the sliding of the movable frame 21, and the two groups of hard limiting components 23 can cooperate with the self-locking characteristics of the electric push rod to make the movable straight track 54 and the movable curved track 55 stably stop at the specified position, ensuring the smooth passing of the EMS walking trolley.

[0043] The hard limiting component 23 comprises a limiting bolt 2301 and a nut 2302, the nut 2302 is fixedly connected to the movable frame 21, and the limiting bolt 2301 is threadedly connected to the nut 2302;

[0044] By screwing the limiting bolt 2301 on the nut 2302, the distance between the limiting bolt 2301 and the fixed frame 11 in switching the sliding direction can be adjusted, so that the hard limiting component 23 can be adapted and adjusted according to the actual limiting requirements, improving its versatility and practicality.

[0045] As shown in Figure 1 As shown in Figure 5 The fixed beam 12 is arranged on the upper part of the normal entry section track 51 and the normal exit section track 52, a plurality of first connecting pieces 13 are connected between the fixed beam 12 and the normal entry section track 51 and between the fixed beam 12 and the normal exit section track 52, the fixed beam 12 is fixed to the top of the factory workshop, and the normal entry section track 51 and the normal exit section track 52 are suspended and installed under the fixed beam 12 through the plurality of first connecting pieces 13, thereby ensuring the stability of the installation of the normal entry section track 51 and the normal exit section track 52.

[0046] As shown in Figure 5 The second connecting piece 14 is connected between the fixed frame 11 and the normal entry section track 51, between the fixed frame 11 and the normal exit section track 52, and between the fixed frame 11 and the maintenance section track 53, and the plurality of second connecting pieces 14 are respectively installed at the end of the normal entry section track 51, the normal exit section track 52, and the maintenance section track 53 close to the fixed frame 11, thereby improving the stability of the butt joint, minimizing the downward collapse of the butt joint when the EMS walking trolley walks to the butt joint, thereby improving the flatness of the butt joint and enabling the EMS walking trolley to smoothly pass through.

[0047] As shown in Figure 6As shown, the third connecting pieces 24 are connected between the movable frame 21 and the movable straight rail 54 and between the movable frame 21 and the movable curved rail 55, so that the movable straight rail 54 and the movable curved rail 55 can form a stable frame with the movable frame 21, which can be used for the EMS walking trolley to stably transit to the normal driving section rail 52 or the maintenance section rail 53, and the stable whole frame can still maintain high precision after the reciprocating switching of the movable frame 21, which reduces the front and back and left and right deviation of the movable straight rail 54 or the movable curved rail 55 after being positioned, and further improves the stability of the switching mechanism.

[0048] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. An EMS conveyor track switching mechanism, comprising a fixed frame (11) and a movable frame (21), wherein a normal entry track (51) is provided on one side below the fixed frame (11), and a normal exit track (52) and a maintenance track (53) are provided on the other side below the fixed frame (11), and a movable straight track (54) and a movable curved track (55) are provided below the movable frame (21), characterized in that: The movable frame (21) is provided with a number of walking support wheels (22). The movable frame (21) is slidably mounted on the fixed frame (11) through the walking support wheels (22), and an electric telescopic device (31) is connected between the movable frame (21) and the fixed frame (11) along the sliding direction.

2. The EMS conveyor track switching mechanism according to claim 1, characterized in that: The fixed frame (11) includes two longitudinal beams (1101) and several transverse beams (1102). The transverse beams (1102) are fixedly connected between the two longitudinal beams (1101), and the longitudinal beams (1101) are I-beams. The traveling bearing wheel (22) is located inside the I-beam longitudinal beam (1101).

3. The EMS conveyor track switching mechanism according to claim 1, characterized in that: The fixed frame (11) is provided with a first limit switch (41) and a second limit switch (42) in sequence along the sliding direction of the movable frame (21). The first limit switch (41) and the second limit switch (42) are respectively connected to the electric telescopic device (31). The movable frame (21) is provided with a positioning detection bracket (43) for pressing the first limit switch (41) or the second limit switch (42) on the outside.

4. The EMS conveyor track switching mechanism according to claim 1, characterized in that: The two sets of hard limiting components (23) on the active frame (21) are distributed at certain intervals along the sliding direction of the active frame (21).

5. The EMS conveyor track switching mechanism according to claim 4, characterized in that: The rigid limiting component (23) includes a limiting bolt (2301) and a nut (2302). The nut (2302) is fixedly connected to the movable frame (21), and the bolt (2301) is threadedly connected to the nut (2302).

6. The EMS conveyor track switching mechanism according to claim 1, characterized in that: It also includes a fixed beam (12) located on the upper part of the normal entry section track (51) and the normal exit section track (52), and several first connecting members (13) are connected between the fixed beam (12) and the normal entry section track (51) and between the fixed beam (12) and the normal exit section track (52).

7. The EMS conveyor track switching mechanism according to claim 1, characterized in that: The fixed frame (11) is connected to the normal entry section track (51), the fixed frame (11) is connected to the normal exit section track (52), and the fixed frame (11) is connected to the maintenance section track (53).

8. The EMS conveyor track switching mechanism according to claim 1, characterized in that: A third connector (24) is connected between the movable frame (21) and the movable straight track (54) as well as between the movable frame (21) and the movable curved track (55).

9. The EMS conveyor track switching mechanism according to claim 1, characterized in that: The electric telescopic device (31) is an electric push rod.

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