Chain type stepping mechanism and conveying system

Abstract

The utility model relates to a chain type stepping mechanism and a conveying system, the chain type stepping mechanism comprises a plurality of bearing tools and a positioning mechanism, and the bearing tools are arranged on a chain at intervals along the length direction of the chain; the positioning mechanism comprises a base, a jacking frame and a positioning frame, the base is located below the chain conveying section, the jacking frame is slidably connected to the base, a jacking piece is arranged at one end of the jacking frame, the other end of the jacking frame is connected with a first driving source, the positioning frame is slidably connected to the jacking frame, one end of the positioning frame is connected with a positioning piece penetrating through the jacking piece, and the other end of the positioning frame is connected with a second driving source. The other end is connected with a second driving source. According to the chain type stepping mechanism, materials staying at the joints can be ejected away from the bearing tool, and the deviated materials are centered and calibrated, so that the positions of the deviated materials are adjusted, a mechanical arm can grab the materials smoothly, a visual system does not need to be arranged for the mechanical arm, and the production efficiency is improved. And the manufacturing and using cost of the whole conveying device can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of conveying devices, in particular to a chain-type stepping mechanism and a conveying system. Background Art

[0002] Chain conveyor line is a widely used assembly line conveying equipment. Chain conveyor line can also be called chain line. Chain conveyor line is a device that uses chain as traction and carrier to convey materials. At present, the production line mostly uses manipulators in conjunction with chain conveyor lines. The manipulator can grab the materials at fixed nodes (grabbing nodes) on the chain conveyor line for transfer.

[0003] However, after a chain conveyor line has been used for a long time, the chain will become elongated, causing the material that should be at the grabbing node to have a certain position offset relative to the node, resulting in the robot being unable to grab the material smoothly. The robot often needs to be equipped with a visual system to solve this problem, which increases the manufacturing and use costs of the entire production line. Utility Model Content

[0004] To this end, the technical problem to be solved by the utility model is to overcome the problem in the prior art that the chain conveyor line will become elongated after long-term use, causing the material that should be at the grabbing node to have a certain position offset relative to the node, resulting in the robot arm being unable to grab the material smoothly. It is often necessary to equip the robot arm with a visual system to solve this problem, which increases the manufacturing and use costs of the entire production line.

[0005] In order to solve the above technical problems, the utility model provides a chain-type stepping mechanism, including a rotary chain conveyor line, the rotary chain conveyor line includes a frame and a chain arranged on the frame for conveying materials, the chain includes a conveying section, a downward turning section, a rotating section and an upward turning section which are sequentially transitioned, and also includes:

[0006] A load-bearing tooling, wherein a plurality of the load-bearing toolings are provided, and the plurality of the load-bearing toolings are arranged at intervals along the length direction of the chain, and each of the load-bearing toolings comprises an annular substrate connected in parallel to the chain, and a plurality of card blocks are centrally symmetrically provided on a surface of the substrate away from the chain;

[0007] A positioning mechanism, the positioning mechanism includes a base, a lifting frame and a positioning frame, the base is connected to the frame and is located below the conveying section, the lifting frame is slidably connected to the base along a direction perpendicular to the conveying section, and a lifting piece is provided at one end of the lifting frame close to the conveying section, and the other end of the lifting frame is connected to a first driving source for driving the sliding thereof, the positioning frame is slidably connected to the lifting frame along a direction perpendicular to the conveying section, the end of the positioning frame close to the conveying section is connected to a positioning piece coaxially passing through the lifting piece, and the other end of the positioning frame is connected to a second driving source for driving the sliding thereof.

[0008] In one embodiment of the present invention, the lifting member is an annular member, the lifting member is parallel to the conveying section, and the diameter of the lifting member is smaller than the diameter of the inner hole of the substrate.

[0009] In one embodiment of the utility model, the positioning member is conical, and one end of the positioning member with a large diameter is connected to the positioning frame, and one end of the positioning member with a small diameter coaxially passes through the inner hole of the lifting member.

[0010] In an embodiment of the present invention, two connecting parts are symmetrically arranged on the base plate and are connected to the chain through the connecting parts.

[0011] In one embodiment of the present invention, a plurality of mounting holes arranged in a circular array are provided on the base plate, and each of the clamping blocks is connected to the base plate at each of the mounting holes by bolts.

[0012] In one embodiment of the utility model, the block includes a main body portion, which is provided with a plurality of bolt holes and is vertically connected to the base plate by bolts, and a bearing portion parallel to the base plate is connected to the side of the main body portion facing the inner hole of the base plate.

[0013] In an embodiment of the present invention, a side of each of the main body parts facing the inner hole of the substrate is provided with an inclined surface to form a bell mouth located above the bearing portion.

[0014] In one embodiment of the present invention, the first driving source is connected to the base, and the second driving source is connected to the lifting frame.

[0015] In one embodiment of the present invention, a controller is further included, and the controller is connected to the first driving source and the second driving source respectively.

[0016] A conveying system comprises the chain-type stepping mechanism as described in any one of the above items.

[0017] The above technical solution of the utility model has the following advantages compared with the prior art:

[0018] The utility model discloses a chain-type stepping mechanism and a conveying system, including a load-bearing tool and a positioning mechanism. The load-bearing tool is provided in multiple pieces and is arranged on the chain at intervals along the length direction of the chain; the positioning mechanism includes a base, a lifting frame and a positioning frame. The base is located below the chain conveying section. The lifting frame is slidably connected to the base, and a lifting member is provided at one end of the lifting frame, and a first driving source is connected to the other end. The positioning frame is slidably connected to the lifting frame, and a positioning member coaxially passing through the lifting member is connected to one end of the positioning frame, and a second driving source is connected to the other end. The chain-type stepping mechanism of the utility model can push the material staying at the node away from the load-bearing tool, and perform centering calibration on the offset material, thereby realizing the position adjustment of the offset material, so that the manipulator can smoothly grab the material, so that there is no need to equip the manipulator with a visual system, which can reduce the manufacturing and use costs of the entire conveying device. The entire device has a simple structure, is easy to install and maintain, and is suitable for practical use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein

[0020] Figure 1 It is a three-dimensional diagram of the chain-type stepping mechanism of the preferred embodiment of the utility model;

[0021] Figure 2 It is a schematic diagram of a partial structure of a chain-type stepping mechanism of a preferred embodiment of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the positioning mechanism of the chain-type stepping mechanism of the preferred embodiment of the utility model;

[0023] Figure 4 It is a three-dimensional diagram of the positioning mechanism of the chain-type stepping mechanism of the preferred embodiment of the utility model;

[0024] Figure 5 It is a structural schematic diagram of the bearing tooling of the chain-type stepping mechanism of the preferred embodiment of the utility model;

[0025] Figure 6 It is a structural schematic diagram of a clamping block of a chain-type stepping mechanism of a preferred embodiment of the utility model.

[0026] Explanation of the reference numerals in the specification: 1. Carrying tooling; 11. Base plate; 12. Block; 121. Main body; 122. Carrying part; 123. Inclined surface; 2. Positioning mechanism; 21. Base; 22. Lifting frame; 23. Positioning frame; 24. Lifting member; 25. First driving source; 26. Positioning member; 27. Second driving source; 3. Rotary chain conveyor line. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0028] Reference Figure 1-Figure 6 As shown, a chain-type stepping mechanism of the utility model comprises a rotary chain conveyor line, wherein the rotary chain conveyor line comprises a frame and a chain arranged on the frame for conveying materials, wherein the chain comprises a conveying section, a downward turning section, a rotating section and an upward turning section which are sequentially transitioned, and further comprises:

[0029] A load-bearing tool 1, wherein a plurality of load-bearing tool 1 are provided, and the plurality of load-bearing tool 1 are arranged at intervals along the length direction of the chain, and each load-bearing tool 1 comprises an annular base plate 11 connected in parallel to the chain, and a plurality of clamping blocks 12 are centrally symmetrically provided on a surface of the base plate 11 away from the chain;

[0030] The positioning mechanism 2 includes a base 21, a lifting frame 22 and a positioning frame 23. The base 21 is connected to the frame and is located below the conveying section. The lifting frame 22 is slidably connected to the base 21 along a direction perpendicular to the conveying section, and a lifting member 24 is provided at one end of the lifting frame 22 close to the conveying section. The other end of the lifting frame 22 is connected to a first driving source 25 for driving the sliding thereof. The positioning frame 23 is slidably connected to the lifting frame 22 along a direction perpendicular to the conveying section. A positioning member 26 coaxially passing through the lifting member 24 is connected to one end of the positioning frame 23 close to the conveying section. The other end of the positioning frame 23 is connected to a second driving source 27 for driving the sliding thereof.

[0031] Specifically, the rotary chain conveyor line 3 runs in a step-by-step manner, and a position (the load-bearing fixture 1 on the chain will stop briefly at this position in turn) is designated as the grabbing node of the manipulator. When a load-bearing fixture 1 carrying materials runs to the grabbing node, the conveyor line stops running for a short time, and the manipulator grabs and transfers the materials on the load-bearing fixture 1. After the rotary chain conveyor line runs for a long time, the chain is stretched, so that the load-bearing fixture 1 that should have stopped accurately at the grabbing node will have a certain position offset relative to the grabbing node, resulting in the manipulator being unable to smoothly grab materials with inaccurate positions.

[0032] The chain-type stepping mechanism is provided with a positioning mechanism 2, and the positioning mechanism 2 is arranged below the grasping node. When the positioning mechanism 2 is in operation, first, the first driving source 25 drives the lifting frame 22 to rise, and the lifting member 24 at the end of the lifting frame 22 will lift the material through the inner hole of the base plate 11 of the carrying tool 1, so that the material is separated from the carrying tool 1. Then, the second driving source 27 drives the positioning frame 23 to rise, and the conical positioning member 26 at the end of the positioning frame 23 will coaxially pass through the lifting member 24 and extend into the inner hole of the annular material above. The material can be centered through the conical surface of the positioning member 26, thereby realizing the position calibration of the offset material, so that the manipulator can smoothly grasp the material, thereby eliminating the need to equip the manipulator with a visual system, and the manufacturing and use costs of the entire conveying device can be reduced.

[0033] Reference Figure 3 and Figure 4 As shown, further, the lifting member 24 is an annular member, the lifting member 24 is parallel to the conveying section, and the diameter of the lifting member 24 is smaller than the diameter of the inner hole of the substrate 11. It can be imagined that the lifting member 24 should have a suitable diameter so that the lifting member 24 can pass through the inner hole of the substrate 11 whose position is offset and can lift the material smoothly.

[0034] Furthermore, the positioning member 26 is conical, and the end with a large diameter of the positioning member 26 is connected to the positioning frame 23, and the end with a small diameter of the positioning member 26 coaxially passes through the inner hole of the lifting member 24. Specifically, the maximum diameter of the positioning member 26 should be larger than the diameter of the inner hole of the annular material, and the minimum diameter of the positioning member 26 should be smaller than the diameter of the inner hole of the annular material. When the positioning member 26 passes through the inner hole of the material, even if the material and the positioning member 26 are not coaxial, the material will eventually be coaxially sleeved on the positioning member 26 under the action of the conical surface of the positioning member 26, thereby realizing the position calibration of the offset material.

[0035] Furthermore, two connecting parts are symmetrically arranged on the base plate 11 and connected to the chain through the connecting parts. The connecting parts are arranged opposite to each other on the base plate 11, and the connecting parts can be connected to the chain by welding.

[0036] Reference Figure 5 and Figure 6 As shown, further, the base plate 11 is provided with a plurality of mounting holes arranged in a circular array, and each clamping block 12 is connected to the base plate 11 at each mounting hole by bolts. Specifically, a plurality of clamping blocks 12 are arranged in a circular array on the base plate 11 to form a receiving position, and a circular material can be placed in the receiving position. It can be imagined that the bolt connection method is convenient for replacing the clamping blocks 12, and the clamping blocks 12 of different sizes can be replaced according to different usage requirements, which can improve the versatility of the load-bearing tooling 1.

[0037] Furthermore, the block 12 includes a main body 121, which is provided with a plurality of bolt holes and vertically connected to the base plate 11 by bolts, and a bearing portion 122 parallel to the base plate 11 is connected to the side of the main body 121 facing the inner hole of the base plate 11. Specifically, the main body 121 is a cube, and the main body 121 is vertically connected to the base plate 11, and a bearing portion 122 parallel to the base plate 11 is connected to the side of the main body 121 facing the inner hole of the base plate 11 near the base plate 11, and each bearing portion 122 can support the material and cooperate with the side of the main body 121 to limit the material, thereby ensuring the stability of the material during the movement of the carrying tool 1.

[0038] Furthermore, each main body portion 121 is provided with an inclined surface 123 on one side facing the inner hole of the substrate 11 to form a bell mouth located above the bearing portion 122. Specifically, the section of the side of the main body portion 121 facing the inner hole of the substrate 11 located above the bearing portion 122 is the inclined surface 123, so that the inclined surfaces 123 of the main body portions 121 arranged in a plurality of annular arrays (centrally symmetrical) form a bell mouth-shaped structure located above the bearing portion 122. It can be imagined that the bell mouth facilitates the placement of materials into the accommodating position and also facilitates the removal of materials from the accommodating position.

[0039] Furthermore, the first driving source 25 is connected to the base 21, and the second driving source 27 is connected to the lifting frame 22; both the first driving source 25 and the second driving source 27 can be cylinders. Specifically, the lifting frame 22 is slidably connected to the base 21 through a slider and a slide rail structure, and similarly, the positioning frame 23 is slidably connected to the lifting frame 22 through a slide rail and a slider structure. When the output end of the first driving source 25 is extended, the first driving source 25 drives the lifting frame 22 and the lifting member 24 connected to the lifting frame 22 and the second driving source 27 to rise together, and after rising to a predetermined height, the output end of the second driving source 27 is extended to drive the positioning frame 23 and the positioning member 26 on the positioning frame 23 to rise.

[0040] Furthermore, a controller is also included, and the controller is respectively connected to the first driving source 25 and the second driving source 27. Specifically, the controller is respectively connected to the first driving source 25, the second driving source 27 and the driving mechanism of the rotary chain conveyor line, and the automatic control of each part and the mutual coordination between the parts can be realized through the controller.

[0041] Embodiment 2

[0042] The utility model also discloses a conveying system, comprising the chain-type stepping mechanism as in the first embodiment.

[0043] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A chain-type stepping mechanism, comprising a rotary chain conveyor line, the rotary chain conveyor line comprising a frame and a chain arranged on the frame for conveying materials, the chain comprising a conveying section, a downward turning section, a rotating section and an upward turning section which are sequentially transitioned, characterized in that: include: A load-bearing tooling, wherein a plurality of the load-bearing toolings are provided, and the plurality of the load-bearing toolings are arranged at intervals along the length direction of the chain, and each of the load-bearing toolings comprises an annular substrate connected in parallel to the chain, and a plurality of card blocks are centrally symmetrically provided on a surface of the substrate away from the chain; A positioning mechanism, the positioning mechanism includes a base, a lifting frame and a positioning frame, the base is connected to the frame and is located below the conveying section, the lifting frame is slidably connected to the base along a direction perpendicular to the conveying section, and a lifting piece is provided at one end of the lifting frame close to the conveying section, and the other end of the lifting frame is connected to a first driving source for driving the sliding thereof, the positioning frame is slidably connected to the lifting frame along a direction perpendicular to the conveying section, the end of the positioning frame close to the conveying section is connected to a positioning piece coaxially passing through the lifting piece, and the other end of the positioning frame is connected to a second driving source for driving the sliding thereof.

2. The chain-type stepping mechanism according to claim 1, characterized in that: The lifting member is an annular member, the lifting member is parallel to the conveying section, and the diameter of the lifting member is smaller than the diameter of the inner hole of the substrate.

3. The chain-type stepping mechanism according to claim 2, characterized in that: The positioning member is conical, and one end of the positioning member with a large diameter is connected to the positioning frame, and one end of the positioning member with a small diameter coaxially passes through the inner hole of the lifting member.

4. The chain-type stepping mechanism according to claim 1, characterized in that: The base plate is symmetrically provided with two connecting parts and is connected with the chain through the connecting parts.

5. The chain-type stepping mechanism according to claim 1, characterized in that: The base plate is provided with a plurality of mounting holes arranged in a circular array, and each of the clamping blocks is connected to the base plate at each of the mounting holes by bolts.

6. The chain-type stepping mechanism according to claim 5, characterized in that: The block comprises a main body portion, a plurality of bolt holes are formed on the main body portion and the main body portion is vertically connected to the base plate by bolts, and a bearing portion parallel to the base plate is connected to a side of the main body portion facing the inner hole of the base plate.

7. The chain-type stepping mechanism according to claim 6, characterized in that: A side of each main body portion facing the inner hole of the substrate is provided with an inclined surface to form a bell mouth located above the bearing portion.

8. The chain-type stepping mechanism according to claim 1, characterized in that: The first driving source is connected to the base, and the second driving source is connected to the lifting frame.

9. The chain-type stepping mechanism according to claim 1, characterized in that: A controller is also included, and the controller is connected to the first driving source and the second driving source respectively.

10. A conveying system, characterized in that: It comprises a chain-type stepping mechanism as described in any one of claims 1 to 9.

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