Positioning mechanism and conveyor roller bed

Abstract

The application relates to a positioning mechanism and a conveying roller bed, which comprises a power cylinder; a positioning seat is provided with an oblique sliding groove, the oblique sliding groove has opposite first and second ends, the height of the first end is greater than that of the second end, the oblique sliding groove further comprises an oblique groove surface between the first and second ends, and the part of the oblique groove surface close to the first end is provided with a first supporting plane; a positioning assembly is in transmission connection with a piston rod of the power cylinder, part of the positioning assembly is slidably arranged in the oblique sliding groove, in an initial state, the piston rod of the power cylinder remains in a retracted state, and the positioning assembly remains retracted at the second end and can avoid the conveying trolley; when the conveying trolley moves to a target station and needs to be positioned in the Z direction, the piston rod of the power cylinder pushes the positioning assembly to slide from the second end to the first end and is pressed on the first supporting plane, and the positioning assembly lifts the conveying trolley away from the track to realize positioning of the conveying trolley in the height direction.

Description

Technical Field

[0001] This application relates to the technical field of positioning of conveying devices, and in particular to a positioning mechanism and a conveying roller bed. Background Technology

[0002] In a conveyor roller bed system, since the conveyor trolley needs to perform process actions after traveling on the conveyor roller bed and reaching the target workstation, it is necessary to design and install a positioning mechanism on the conveyor roller bed to position the conveyor trolley at the target workstation. For example, a Z-axis positioning mechanism can be used to position the conveyor trolley upward in the Z-axis direction.

[0003] However, the Z-axis positioning mechanism used in traditional technology usually consists of a vertically arranged cylinder and rollers. The cylinder drives the rollers to make a lifting motion in the vertical direction. The rollers block the conveyor trolley to stop the conveyor trolley at the target position. However, this positioning method is greatly affected by the air pressure inside the cylinder, and the positioning accuracy is unstable. In addition, the cylinder supports the rollers to bear almost all the heavy load of the conveyor trolley, which requires a high supporting force from the cylinder, resulting in the use of a large cylinder diameter and occupying a lot of installation space. Utility Model Content

[0004] Therefore, it is necessary to provide a positioning mechanism and a conveyor roller bed to address the problems of poor positioning accuracy and large installation space occupation.

[0005] A first aspect of this application provides a positioning mechanism, comprising:

[0006] A power cylinder, which is used to be mounted on the bed of the roller bed;

[0007] A positioning seat, used for mounting on a rolling mill bed, is provided with an inclined groove. The inclined groove has a first end and a second end located at opposite ends along its length, the height of the first end being greater than the height of the second end. The inclined groove also includes an inclined groove surface located between the first end and the second end, and a first support plane is provided on the inclined groove surface near the first end.

[0008] A positioning component is provided, which is connected to the piston rod of the power cylinder. A portion of the positioning component is slidably disposed within the inclined groove. In the initial state, the piston rod of the power cylinder remains retracted, and the positioning component remains retracted at the second end to avoid the conveyor trolley. When the conveyor trolley moves to the target workstation and needs to be positioned in the height direction, the piston rod of the power cylinder pushes the positioning component to slide from the second end to the first end and press it against the first support plane. The positioning component lifts the conveyor trolley away from the track to achieve positioning of the conveyor trolley in the height direction.

[0009] The positioning mechanism in this solution is applied to a conveyor roller bed and is used to position the conveyor trolley moving on the conveyor roller bed in the height direction after it reaches the target station, ensuring that the conveyor trolley can reliably perform process actions. Specifically, in the initial state, the power cylinder remains in the retracted state, and the piston rod pulls the positioning component back to the second end of the inclined chute, allowing the positioning component to avoid the conveyor trolley, and the conveyor trolley can run normally on the conveyor roller bed. When the conveyor trolley reaches the target station, the power cylinder immediately drives the piston rod to extend, and the piston rod simultaneously pushes the positioning component to slide quickly from the second end to the first end and press against the first support plane. At this time, the positioning component can just lift the conveyor trolley and lift it away from the track on the roller bed, thus achieving the positioning of the conveyor trolley in the height direction. During the process of the positioning component lifting the conveyor trolley, because the angle of the inclined chute is small, the component of the pressure of the conveyor trolley along the normal direction of the inclined chute surface is supported by the support force of the inclined chute surface, while the component along the tangential direction of the inclined chute surface is supported by the piston rod of the power cylinder. According to force analysis, the component of the pressure of the conveyor trolley along the tangential direction of the inclined plane is much smaller than the component along the normal direction of the inclined plane. Therefore, the thrust of the piston rod of the power cylinder is sufficient to push the positioning component from the second end to the first end and stably press it onto the first support plane, thereby lifting the conveyor trolley. After being lifted, the conveyor trolley is positioned in the height direction, and the weight of the conveyor trolley on the positioning component is entirely supported by the supporting force of the first support plane. At this time, the piston rod of the power cylinder is not under force, which greatly reduces the thrust requirement of the power cylinder. A cylinder with a small thrust performance can meet the usage requirements. The cylinder diameter is small, occupying less installation space. Furthermore, the positioning component is vertically supported by the first support plane, resulting in good stability of the positioning component. This achieves high positioning accuracy of the conveyor trolley in the height direction.

[0010] The technical solution of this application will be further described below:

[0011] In one embodiment, the positioning assembly includes a connecting seat, a roller, and a positioning roller. The positioning seat has a receiving cavity communicating with the inclined slide groove, and the positioning seat has two inclined slide grooves arranged side by side with intervals. The connecting seat is located in the receiving cavity and connected to the piston rod of the power cylinder. The roller is located on the connecting seat, and the two opposite ends of the roller are respectively inserted into the corresponding inclined slide grooves and can slide along the inclined slide grooves.

[0012] When the roller reaches the first end and presses against the first support plane, the top horizontal tangent plane of the positioning roller is higher than the top horizontal tangent plane of the conveying roller of the conveying trolley.

[0013] In one embodiment, the positioning mechanism further includes a sensing plate and a first position sensor. The sensing plate is disposed on the connecting seat and extends to the outside of the receiving cavity. The first position sensor is used to be mounted on the roller bed. When the roller is at the first end and pressed against the first support plane, the sensing plate is aligned with the first position sensor to trigger the first position sensor.

[0014] In one embodiment, a second support plane is provided on the sloping groove surface near the second end. When the roller returns to the second end and presses against the second support plane, the top horizontal tangent plane of the positioning roller is lower than the top horizontal tangent plane of the conveying roller of the conveying trolley.

[0015] In one embodiment, the positioning mechanism further includes a second position sensor for mounting on the roller bed. When the roller is at the second end and pressed against the second support plane, the sensing plate aligns with the second position sensor to trigger the second position sensor.

[0016] In one embodiment, the connecting seat includes a mounting plate, a first connecting plate, and a second connecting plate. The first connecting plate and the second connecting plate are respectively disposed at opposite ends of the mounting plate and both extend toward the same side of the mounting plate. The roller passes through the first connecting plate and the second connecting plate. The positioning roller is arranged between the first connecting plate and the second connecting plate. The mounting plate is connected to the piston rod of the power cylinder.

[0017] In one embodiment, the first connecting plate and / or the second connecting plate slide in contact with the sidewall of the accommodating cavity formed by the positioning seat.

[0018] In one embodiment, the positioning component further includes a first rolling bearing and a second rolling bearing, which are respectively mounted at both ends of the roller and rotatably disposed within the corresponding inclined grooves.

[0019] In one embodiment, the positioning seat has a mounting hole.

[0020] A second aspect of this application also provides a conveyor roller bed that includes the positioning mechanism described above. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the positioning mechanism in its initial state according to an embodiment of this application.

[0024] Figure 2 A schematic diagram of the working state of the positioning mechanism lifting the conveyor trolley.

[0025] Figure 3 A schematic diagram of the structure in which the positioning component lifts and jacks up the conveyor trolley.

[0026] Explanation of reference numerals in the attached figures:

[0027] 100. Positioning mechanism; 10. Power cylinder; 20. Positioning seat; 21. Inclined slide; 211. First end; 212. Second end; 213. Inclined slide surface; 213a. First support plane; 213b. Second support plane; 22. Accommodating cavity; 23. Mounting hole; 30. Positioning assembly; 31. Connecting seat; 311. Mounting plate; 312. First connecting plate; 313. Second connecting plate; 32. Roller; 33. Positioning roller; 40. Sensing plate; 50. First position sensor; 60. Second position sensor; 70. First rolling bearing; 200. Conveying trolley; 210. Conveying roller. Detailed Implementation

[0028] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0029] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0030] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0034] See Figure 1 and Figure 2 This application illustrates a positioning mechanism 100, specifically a Z-axis positioning mechanism, which includes a power cylinder 10, a positioning seat 20, and a positioning component 30.

[0035] The power cylinder 10 is used to provide the driving force required for the positioning mechanism 100 to lift the positioning conveyor trolley 200. In this application, the power cylinder 10 is used to be mounted on the roller bed. Specifically, the power cylinder 10 has a cylinder seat and a piston rod. The cylinder seat is rotatably connected to the roller bed through rotating components such as a rotating shaft. The piston rod is telescopically mounted at one end of the cylinder seat in the length direction. After the power cylinder 10 is installed, the height of the end of the cylinder seat where the piston rod is mounted is greater than the height of the other end of the cylinder seat away from the piston rod.

[0036] Optionally, the power cylinder 10 can be directly mounted on the roller bed, or indirectly mounted on the roller bed via a third component. The mounting method can be, but is not limited to, at least one of bolting, snap-fitting, or welding. The specific method chosen depends on the actual needs.

[0037] The positioning seat 20 is used to be installed on the bed of the rolling mill. The installation method can be, but is not limited to, at least one of the following: screw connection, snap connection, welding, etc.

[0038] The positioning seat 20 is provided with an inclined slide groove 21. The inclined slide groove 21 has a first end 211 and a second end 212 located at opposite ends in its length direction. The height of the first end 211 is greater than the height of the second end 212. The inclined slide groove 21 also includes an inclined groove surface 213 located between the first end 211 and the second end 212. The portion of the inclined groove surface 213 near the first end 211 is provided with a first support plane 213a. The positioning component 30 is drivenly connected to the piston rod of the power cylinder 10, and a portion of the positioning component 30 is slidably disposed in the inclined slide groove 21.

[0039] In the initial state, that is, when the positioning mechanism 100 does not need to perform height-direction (i.e., Z-axis direction) positioning of the conveyor trolley 200 running on the roller bed, the piston rod of the power cylinder 10 remains in a retracted state, and the positioning component 30 remains retracted at its second end 212 to avoid the conveyor trolley 200. In other words, when the conveyor trolley 200 passes over the positioning mechanism 100, it will not come into contact with or collide with the positioning mechanism 100.

[0040] Please continue reading. Figure 3 When the conveyor trolley 200 moves to the target workstation and needs to be positioned in the height direction, the piston rod of the power cylinder 10 pushes the positioning component 30 to slide from the second end 212 to the first end 211 and press it onto the first support plane 213a. The positioning component 30 lifts the conveyor trolley 200 away from the track to achieve positioning of the conveyor trolley 200 in the height direction.

[0041] Understandably, when the conveyor trolley 200 is lifted by the positioning component 30 and leaves the track of the roller bed, the conveyor rollers 210 of the conveyor trolley 200 are in a suspended state and cannot continue to provide moving force for the conveyor trolley 200. The conveyor trolley 200 is positioned by the positioning component 30 at a certain height above the track to achieve height positioning.

[0042] In summary, implementing the technical solution of this embodiment will have the following beneficial effects: The positioning mechanism 100 of this solution is applied in the conveying roller bed and is used to position the conveying trolley 200 moving on the conveying roller bed in the height direction after it reaches the target station, so as to ensure that the conveying trolley 200 can reliably perform process actions. Specifically, in the initial state, the power cylinder 10 remains in the retracted state, and the piston rod pulls the positioning component 30 back to the second end 212 of the inclined slide 21, so that the positioning component 30 can avoid the conveying trolley 200, and the conveying trolley 200 can run normally on the conveying roller bed; when the conveying trolley 200 reaches the target station, the power cylinder 10 immediately drives the piston rod to extend, and the piston rod simultaneously pushes the positioning component 30 from the second end 212 to the first end 211 and presses it onto the first support plane 213a. At this time, the positioning component 30 can just lift the conveying trolley 200 and lift it away from the track on the roller bed, thereby realizing the positioning of the conveying trolley 200 in the height direction.

[0043] During the process of the positioning component 30 lifting the conveying trolley 200, due to the small angle of the inclined chute 21, the component of the pressure of the conveying trolley 200 along the normal direction of the inclined chute surface 213 is supported by the supporting force of the inclined chute surface 213, while the component along the tangential direction of the inclined chute surface 213 is supported by the thrust of the piston rod of the power cylinder 10. According to the force analysis, the component of the pressure of the conveying trolley 200 along the tangential direction of the inclined chute surface 213 is much smaller than the component along the normal direction of the inclined chute surface 213. Therefore, the thrust of the piston rod of the power cylinder 10 is sufficient to push the positioning component 30 from the second end 212 to the first end 211 and stably press it against the first support plane 213a. This causes the conveyor trolley 200 to be lifted. After being lifted, the conveyor trolley 200 is positioned in the height direction, and the weight of the conveyor trolley 200 on the positioning component 30 is entirely supported by the supporting force of the first supporting plane 213a. At this time, the piston rod of the power cylinder 10 is not under force, which greatly reduces the thrust requirement of the power cylinder 10. A cylinder with a small thrust performance can meet the usage requirements. The cylinder diameter is small, which occupies less installation space. In addition, the positioning component 30 is vertically supported by the first supporting plane 213a, and the positioning component 30 has good stability, thus achieving high positioning accuracy of the conveyor trolley 200 in the height direction.

[0044] Please continue reading. Figure 1 and Figure 2 Based on the above embodiments, the positioning component 30 includes a connecting seat 31, a roller 32, and a positioning roller 33. The positioning seat 20 is provided with a receiving cavity 22 communicating with the inclined slide groove 21, and the positioning seat 20 has two inclined slide grooves 21, which are arranged side by side with intervals. The connecting seat 31 is located in the receiving cavity 22 and connected to the piston rod of the power cylinder 10. The roller 32 is located on the connecting seat 31, and the two opposite ends of the roller 32 are respectively inserted into the corresponding inclined slide grooves 21 and can slide along the inclined slide grooves 21.

[0045] When the roller 32 reaches the first end 211 and presses against the first support plane 213a, the top horizontal tangent plane of the positioning roller 33 is higher than the top horizontal tangent plane of the conveying roller 210 of the conveying trolley 200.

[0046] When assembling the components of the positioning assembly 30, the positioning roller 33 is first installed into the connecting seat 31, and then the roller 32 is passed through the reserved hole on the connecting seat 31 and the center hole of the positioning roller 33, so that the roller 32, the positioning roller 33 and the connecting seat 31 are assembled into one unit. Then, the entire positioning assembly 30 is placed into the receiving cavity 22, so that the two ends of the roller 32 are respectively inserted into the inclined slide grooves 21 on both sides to complete the assembly operation. The two ends of the roller 32 slide synchronously along the inclined slide grooves 21 on both sides, with good movement stability and high support strength. When the piston rod of the power cylinder 10 pushes the roller 32 from the second end 212 to the first end 211 and presses it against the first support plane 213a, the top horizontal tangent plane of the positioning roller 33 is higher than the top horizontal tangent plane of the conveying roller 210 of the conveying trolley 200. The positioning roller 33 contacts the bottom surface of the top support conveying trolley 200, thereby lifting the entire conveying trolley 200 to a certain height above the track. The conveying roller 210 leaves the track, thus completing the positioning of the conveying trolley 200 in the height direction.

[0047] Preferably, the positioning roller 33 is made of a flexible material, such as rubber, so the collision force between the positioning roller 33 and the conveyor trolley 200 at the moment of contact is small, and the noise generated is also small.

[0048] Please continue reading. Figure 1 and Figure 2 Furthermore, the positioning mechanism 100 also includes a sensing plate 40 and a first position sensor 50. The sensing plate 40 is disposed on the connecting seat 31 and extends to the outside of the receiving cavity 22. The first position sensor 50 is used to be mounted on the roller bed. When the roller 32 is at the first end 211 and pressed against the first support plane 213a, the sensing plate 40 and the first position sensor 50 are aligned to trigger the first position sensor 50. By triggering the first position sensor 50 through the sensing plate 40, the first position sensor 50 can feed back a signal to the controller. The controller then controls the power cylinder 10 to stop pushing the piston rod to extend, thereby ensuring that the positioning assembly 30 is accurately stopped on the first support plane 213a.

[0049] For example, the first position sensor 50 may be, but is not limited to, a proximity switch, an infrared sensor, etc.

[0050] In another embodiment, a second support plane 213b is provided at the part of the inclined groove surface 213 near the second end 212. When the roller 32 returns to the second end 212 and presses against the second support plane 213b, the top horizontal tangent plane of the positioning roller 33 is lower than the top horizontal tangent plane of the conveying roller 210 of the conveying trolley 200.

[0051] When the conveyor trolley 200 completes its process and needs to continue moving downstream, the power cylinder 10 pulls the piston rod to retract. The piston rod then simultaneously pulls the positioning assembly 30 to slide and reset along the first end 211 of the inclined slide groove 21 to the second end 212. The positioning assembly 30 releases the conveyor trolley 200 and lowers it onto the track. The top horizontal tangent plane of the positioning roller 33 is lower than the top horizontal tangent plane of the conveying roller 210 of the conveyor trolley 200. The positioning roller 33 disengages from the bottom surface of the conveyor trolley 200, and the conveying roller 210 contacts the track, providing the necessary moving force for the conveyor trolley 200. The roller 32, returning to the second end 212, presses against the second support plane 213b, which provides support and positioning for the positioning assembly 30.

[0052] Please continue reading. Figure 1 and Figure 2 Furthermore, the positioning mechanism 100 also includes a second position sensor 60, which is mounted on the bed of the roller bed. When the roller 32 is at the second end 212 and pressed against the second support plane 213b, the sensing plate 40 aligns with the second position sensor 60 to trigger the second position sensor 60. When the sensing plate 40 triggers the second position sensor 60, the second position sensor 60 feeds back a signal to the controller, thereby identifying that the positioning component 30 has completely detached from the conveyor trolley 200. The controller then issues a running command to the conveyor trolley 200, allowing the conveyor trolley 200 to run along the track and leave the target workstation, thereby improving the accuracy and effectiveness of the conveyor trolley 200's movements.

[0053] For example, the second position sensor 60 can be, but is not limited to, a proximity switch, an infrared sensor, etc.

[0054] Please continue reading. Figure 1 and Figure 2 Furthermore, based on any of the above embodiments, the connecting seat 31 includes a mounting plate 311, a first connecting plate 312, and a second connecting plate 313. The first connecting plate 312 and the second connecting plate 313 are respectively disposed at opposite ends of the mounting plate 311 and both extend toward the same side of the mounting plate 311. That is, the first connecting plate 312, the mounting plate 311, and the second connecting plate 313 cooperate to form a U-shaped structure, and the first connecting plate 312, the mounting plate 311, and the second connecting plate 313 are preferably integrally formed to ensure structural strength. A roller 32 passes through the first connecting plate 312 and the second connecting plate 313, a positioning roller 33 is arranged between the first connecting plate 312 and the second connecting plate 313, and the mounting plate 311 is connected to the piston rod of the power cylinder 10.

[0055] Mounting plate 311 is connected to the piston rod of power cylinder 10, thereby enabling positioning assembly 30 to receive the driving force of power cylinder 10 for reciprocating sliding along inclined slide groove 21. Positioning roller 33 is arranged between first connecting plate 312 and second connecting plate 313, thereby being axially positioned by first connecting plate 312 and second connecting plate 313.

[0056] Furthermore, the first connecting plate 312 and / or the second connecting plate 313 slide in contact with the side wall of the accommodating cavity 22 formed by the positioning seat 20.

[0057] In this application, the positioning base 20 includes a first positioning plate and a second positioning plate. The first positioning plate can be a separate structure from the second positioning plate, or it can be an integrated structure connected by a third component. The first positioning plate and the second positioning plate are spaced apart to form an accommodating cavity 22. The first connecting plate 312 slides in contact with the first positioning plate, and the second connecting plate 313 slides in contact with the second positioning plate. This allows the positioning component 30 to be guided and limited when it is driven by the power cylinder 10 to reciprocate, preventing the positioning component 30 from swinging axially along the roller 32 and affecting the positioning accuracy and stability of the conveyor trolley 200 in the height direction.

[0058] In another embodiment, the positioning assembly 30 further includes a first rolling bearing 70 and a second rolling bearing, which are respectively mounted at both ends of the roller 32 and rotatably disposed within corresponding inclined grooves 21. By having the first rolling bearing 70 and the second rolling bearing roll along their respective inclined grooves 21, the sliding friction resistance and wear between the roller 32 and the inclined grooves 21 can be reduced, thus improving the service life of the component.

[0059] To facilitate the installation of the positioning seat 20 onto the roller bed, in one embodiment, the positioning seat 20 is provided with mounting holes 23. Specifically, the first positioning plate and the second positioning plate are rectangular, and mounting holes 23 are provided at the four apex corners of both positioning plates. The mounting holes 23 can be aligned with the threaded holes on the roller bed. By passing bolts through the mounting holes 23 and screwing them into the threaded holes, the positioning seat 20 can be locked and fixed onto the roller bed. The installation method is simple, the connection is highly reliable, and it is easy to disassemble for subsequent maintenance and replacement.

[0060] In addition to the above, this application also provides a conveying roller bed, which includes the positioning mechanism 100 as described in any of the above embodiments.

[0061] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A positioning mechanism, characterized in that, include: A power cylinder, which is used to be mounted on the bed of the roller bed; A positioning seat, used for mounting on a rolling mill bed, is provided with an inclined groove. The inclined groove has a first end and a second end located at opposite ends along its length, the height of the first end being greater than the height of the second end. The inclined groove also includes an inclined groove surface located between the first end and the second end, and a first support plane is provided on the inclined groove surface near the first end. A positioning component is provided, which is connected to the piston rod of the power cylinder. A portion of the positioning component is slidably disposed within the inclined groove. In the initial state, the piston rod of the power cylinder remains retracted, and the positioning component remains retracted at the second end to avoid the conveyor trolley. When the conveyor trolley moves to the target workstation and needs to be positioned in the height direction, the piston rod of the power cylinder pushes the positioning component to slide from the second end to the first end and press it against the first support plane. The positioning component lifts the conveyor trolley away from the track to achieve positioning of the conveyor trolley in the height direction.

2. The positioning mechanism according to claim 1, characterized in that, The positioning assembly includes a connecting seat, a roller, and a positioning roller. The positioning seat has a receiving cavity communicating with the inclined slide groove, and the positioning seat has two inclined slide grooves arranged side by side with intervals. The connecting seat is located in the receiving cavity and connected to the piston rod of the power cylinder. The roller is located on the connecting seat, and the two opposite ends of the roller are respectively inserted into the corresponding inclined slide grooves and can slide along the inclined slide grooves. When the roller reaches the first end and presses against the first support plane, the top horizontal tangent plane of the positioning roller is higher than the top horizontal tangent plane of the conveying roller of the conveying trolley.

3. The positioning mechanism according to claim 2, characterized in that, The positioning mechanism further includes a sensing plate and a first position sensor. The sensing plate is disposed on the connecting seat and extends to the outside of the receiving cavity. The first position sensor is used to be mounted on the roller bed. When the roller is at the first end and pressed against the first support plane, the sensing plate is aligned with the first position sensor to trigger the first position sensor.

4. The positioning mechanism according to claim 3, characterized in that, A second support plane is provided near the second end of the inclined groove surface. When the roller returns to the second end and presses against the second support plane, the top horizontal tangent plane of the positioning roller is lower than the top horizontal tangent plane of the conveying roller of the conveying trolley.

5. The positioning mechanism according to claim 4, characterized in that, The positioning mechanism further includes a second position sensor, which is mounted on the roller bed. When the roller is at the second end and pressed against the second support plane, the sensing plate is aligned with the second position sensor to trigger the second position sensor.

6. The positioning mechanism according to claim 2, characterized in that, The connecting seat includes a mounting plate, a first connecting plate, and a second connecting plate. The first connecting plate and the second connecting plate are respectively disposed at opposite ends of the mounting plate and both extend toward the same side of the mounting plate. The roller passes through the first connecting plate and the second connecting plate. The positioning roller is arranged between the first connecting plate and the second connecting plate. The mounting plate is connected to the piston rod of the power cylinder.

7. The positioning mechanism according to claim 6, characterized in that, The first connecting plate and / or the second connecting plate slide in contact with the side wall of the accommodating cavity formed by the positioning seat.

8. The positioning mechanism according to claim 2, characterized in that, The positioning assembly further includes a first rolling bearing and a second rolling bearing, which are respectively mounted at both ends of the roller and are rotatably disposed in the corresponding inclined grooves.

9. The positioning mechanism according to claim 1, characterized in that, The positioning seat has mounting holes.

10. A conveyor roller bed, characterized in that, Includes one or more positioning mechanisms as described in any one of claims 1 to 9.

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