Annular conveying mechanism

Abstract

The utility model relates to the technical field of automatic production, and discloses an annular conveying mechanism. The annular conveying mechanism comprises a working table, and a conveying line shaped like a Chinese character'hui 'is arranged on the working table. A plurality of positioning jigs which abut against one another end to end are arranged on the conveying line; the positioning jig is used for bearing a workpiece to be transferred; the four corners, located on the top face or the bottom face of the working table, of the working table are provided with material pushing assemblies correspondingly. The material pushing assembly is used for pushing the multiple positioning jigs so as to drive the workpieces to be transferred to move annularly on the conveying line. With the adoption of the structure, the annular conveying mechanism not only can accurately move a workpiece to be transferred to a target station, but also improves the workpiece transferring efficiency.

Description

Technical Field

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[0001] The utility model relates to the technical field of automatic production, and particularly relates to an annular conveying mechanism. Background Technique

[0002] With the continuous development of industrial automation technology, in order to improve production and transportation efficiency, most enterprises' production workshops use assembly lines to transfer workpieces. Among them, the conveyor belt, as a key equipment of the assembly line, plays the role of supporting and transferring workpieces. In order to make the assembly line circulate in a loop, a conveyor belt is usually used.

[0003] Most of the existing conveyor belts are straight conveyor belts. In order to adapt to transportation in different situations, people have also designed annular conveyor belts. The traditional annular conveyor belt is composed of two groups of parallel conveyor belts used in cooperation, a driving motor and a turntable mechanism at both ends of the joint. The conveyor belt often has the phenomenon of asynchronous operation and different running speeds, resulting in the inability to accurately transfer workpieces to the target workstations for processing and production. In addition, it is not easy to adjust the tightness of the conveyor belt. The annular joint structures at both ends are unreasonable, cannot meet the splicing requirements of various styles, and have a complex structure and a large occupied volume, causing great limitations to the transportation of materials. When the running speed of the conveyor belt is too fast, the workpieces are prone to displacement or being thrown out under the action of their inertia and centrifugal force. When the speed of the conveyor belt is slow, it will affect the transfer efficiency of the workpieces.

[0004] Therefore, there is an urgent need for an annular conveying mechanism to solve the above problems. Content of the Utility Model

[0005] Based on the above, the purpose of the utility model is to provide an annular conveying mechanism to solve the problems that the traditional conveyor belt in the prior art is difficult to accurately transfer workpieces to the target workstations and has a low transfer efficiency.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] An annular conveying mechanism provided by the utility model includes: a working table, on which a conveying line in a "return" shape is installed; a plurality of positioning fixtures are arranged on the conveying line and are connected end to end; the positioning fixtures are used for loading the workpieces to be transferred; at the four corners of the top surface or the bottom surface of the working table, pushing components are respectively installed; the pushing components are used to push the plurality of positioning fixtures to drive the workpieces to be transferred to move in a circle on the conveying line.

[0008] As an optional technical solution of the annular conveying mechanism, the conveying line includes a limiting strip installed on the working table and a pressing strip arranged on the limiting strip, the width of the pressing strip is greater than the width of the limiting strip, and a limiting groove is formed between the pressing strip and the limiting strip.

[0009] As an alternative technical solution of the annular conveying mechanism, the positioning jig is in a rectangular shape, and both ends thereof are slidably sleeved in the two opposite parallel limiting grooves.

[0010] As an alternative technical solution of the annular conveying mechanism, the pushing assembly comprises two groups of first pushing air cylinders and two groups of second pushing air cylinders, the two groups of first pushing air cylinders are arranged on the top surface of the workbench and close to one pair of diagonal positions, and the two groups of second pushing air cylinders are arranged on the bottom surface of the workbench and close to another pair of diagonal positions.

[0011] As an alternative technical solution of the annular conveying mechanism, the telescopic end of the first pushing air cylinder is provided with a pushing plate, and the pushing plate drives the positioning jig to move towards the second pushing air cylinder under the driving of the first pushing air cylinder.

[0012] As an alternative technical solution of the annular conveying mechanism, the telescopic end of the second pushing air cylinder is provided with a pushing block, the workbench is provided with a sliding groove in the axial direction of the second pushing air cylinder, the pushing block extends above the workbench through the sliding groove, and the pushing block drives the positioning jig to move towards the first pushing air cylinder under the driving of the second pushing air cylinder.

[0013] As an alternative technical solution of the annular conveying mechanism, the limiting strip close to one side of the pushing block is provided with a clearance, and the clearance is coaxial with the sliding groove; when the first pushing air cylinder drives the positioning jig to move towards the second pushing air cylinder, the second pushing air cylinder moves the pushing block to the clearance for avoidance.

[0014] As an alternative technical solution of the annular conveying mechanism, the positioning jig is provided with a mounting hole, and the mounting hole is used for mounting a workpiece to be transferred.

[0015] As an alternative technical solution of the annular conveying mechanism, the left and right sides of the conveying line are respectively provided with positioning air cylinders, and the telescopic end of the positioning air cylinder is provided with a positioning block for accurately positioning a workpiece.

[0016] As an alternative technical solution of the annular conveying mechanism, one side of the workbench is provided with a mounting frame, and the mounting frame is used for mounting a workpiece processing device.

[0017] The utility model discloses the beneficial effect is:

[0018] The utility model provides a kind of annular conveying mechanism, the annular conveying mechanism includes workbench, and workbench is equipped with the conveying line of "back" character shape;Conveying line is equipped with several abutting positioning fixture;Positioning fixture is used to load the workpiece to be transferred;Workbench is equipped with push material assembly at four corners of its top surface or bottom surface respectively;Push material assembly is used to push several positioning fixtures to drive the workpiece to be transferred to move on conveying line in annular.

[0019] Under the above structure, the positioning fixture on conveying line is pushed to move in annular by four push material assemblies arranged at four corners of workbench, that is, the distance of push material assembly to push positioning fixture to move each time is the length or width of one positioning fixture;Since seamless abutting movement can be realized between multiple positioning fixtures, the workpiece on positioning fixture can be accurately moved to target station for machining production;Since the two ends of positioning fixture are slid in limiting slot on conveying line, and workpiece is installed on mounting hole, when positioning fixture moves fast, workpiece will not be separated due to larger inertia or centrifugal force. The annular conveying mechanism can not only accurately move the workpiece to be transferred to target station, but also improve the efficiency of workpiece transfer. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is overall structure schematic view of annular conveying mechanism in the utility model embodiment;

[0021] Figure 2 It is structure schematic view of annular conveying mechanism in another view in the utility model embodiment;

[0022] Figure 3 It is structure schematic view of positioning fixture in the utility model embodiment;

[0023] Figure 4 It is partial structure schematic view of conveying line in the utility model embodiment.

[0024] In the drawing:

[0025] 1, workbench;2, conveying line;20, positioning fixture;201, workpiece;202, mounting hole;203, positioning column;22, limiting strip;220, empty position;23, pressing strip;3, push material assembly;30, first push material cylinder;301, push plate;31, second push material cylinder;310, push block;311, sliding groove;4, positioning cylinder;40, positioning block;5, mounting frame. DETAILED DESCRIPTION

[0026] The utility model will be described further in detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model and are not limited to the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for ease of description, not all the structures.

[0027] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0028] In the utility model, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0029] In the description of the embodiment, the terms "upper", "lower", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore cannot be understood as a limitation of the utility model.

[0030] In the description of the utility model, unless otherwise stated, the meaning of "multiple" is two or more. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0031] As Figures 1-4As shown, the utility model provides a kind of annular conveying mechanism, the annular conveying mechanism includes workbench 1, and workbench 1 is equipped with the conveying line 2 of "back" character shape;Conveying line 2 is equipped with several first-end abutting positioning fixtures 20;Positioning fixture 20 is used to support the workpiece 201 to be transferred;Workbench 1 is equipped with push material assembly 3 at four corners of its top surface or bottom surface respectively;Push material assembly 3 is used to push several positioning fixtures 20 to drive the workpiece 201 to be transferred to move in annular on conveying line 2.

[0032] The utility model provides a kind of annular conveying mechanism, which is pushed by four push material assemblies 3 arranged at the four corners of workbench 1 to move in annular on the positioning fixture 20 on conveying line 2, that is, the distance of each push of push material assembly 3 is the length or width of one positioning fixture 20;Since the multiple positioning fixtures 20 can move seamlessly, the workpiece 201 on the positioning fixture 20 can be accurately moved to the target station for processing and production;Since the two ends of the positioning fixture 20 are slidably arranged in the limiting groove on the conveying line 2, and the workpiece 201 is installed on the mounting hole 202, the workpiece 201 will not be separated due to large inertia or centrifugal force when the positioning fixture 20 moves quickly. The annular conveying mechanism not only accurately moves the workpiece 201 to be transferred to the target station, but also improves the efficiency of workpiece 201 transfer.

[0033] Specifically, as shown in Figure 1 , one or two avoidance strokes are provided between the multiple positioning fixtures 20 on the conveying line 2, and the distance of the stroke is the width or length of one positioning fixture 20, so that when the positioning fixture 20 at the corner of the conveying line 2 is pushed by the first push cylinder 30 or the second push cylinder 31 to the adjacent conveying line 2, an avoidance station is reserved at the end of the conveying line 2, so that all the positioning fixtures 20 on the conveying line 2 can form a circulating transfer path.

[0034] Further, as shown in Figure 1 and Figure 4 , the conveying line 2 includes multiple limiting strips 22 arranged on the workbench 1, and a "back" character structure is formed between the multiple limiting strips 22, each limiting strip 22 is installed with a pressing strip 23, the width of the pressing strip 23 is greater than the width of the limiting strip 22, so that a limiting groove is formed between the pressing strip 23, the limiting strip 22 and the workbench 1, the positioning fixture 20 is arranged in a rectangular shape, and two ends of the positioning fixture 20 are slidably arranged in the two limiting grooves between the conveying line 2;That is, no matter how fast or slow the positioning fixture 20 moves on the conveying line 2, the positioning fixture 20 can stably move on the conveying line 2 without being affected by inertia or centrifugal force to separate from the conveying line 2, improving the stability of the annular conveying mechanism.

[0035] In the embodiment, as shown in Figure 1 and Figure 2 , the pushing assembly 3 comprises two sets of first pushing cylinders 30 and two sets of second pushing cylinders 31, the two sets of first pushing cylinders 30 are installed on the top surface of the workbench 1 and close to one pair of corner positions, and the two sets of second pushing cylinders 31 are installed on the bottom surface of the workbench 1 and close to the other pair of corner positions. The telescopic end of the first pushing cylinder 30 is provided with a pushing plate 301, which drives the positioning jig 20 to move towards the second pushing cylinder 31. The telescopic end of the second pushing cylinder 31 is provided with a pushing block 310, and the workbench 1 is provided with a sliding groove 311 in the axial direction of the second pushing cylinder 31. The pushing block 310 extends above the workbench 1 through the sliding groove 311, and the pushing block 310 drives the positioning jig 20 to move towards the first pushing cylinder 30. In the above structure, the two sets of first pushing cylinders 30 and the two sets of second pushing cylinders 31 provided on the top surface and the bottom surface of the workbench 1 enable the multiple positioning jigs 20 of the conveying line 2 to move in a ring shape under the driving of the first pushing cylinders 30 and the second pushing cylinders 31. Therefore, the workpiece 201 installed on the positioning jig 20 also moves in a ring shape. The ring conveying mechanism has simple structure, low manufacturing cost, high stability and fast transfer efficiency, and is suitable for conveying and transferring workpieces 201 in various automatic production lines.

[0036] Further, the limiting strip 22 on one side of the pushing block 310 is provided with an empty position 220, which is coaxial with the sliding groove 311. When the first pushing cylinder 30 drives the positioning jig 20 to move towards the second pushing cylinder 31, the second pushing cylinder 31 moves the pushing block 310 to the empty position 220 for avoidance. The pushing block 310 has a "T" shape structure, and the height of the pushing block 310 extending above the workbench 1 is less than or equal to the height of the empty position 220.

[0037] In the embodiment, as shown in Figure 3 , the positioning jig 20 is provided with mounting holes 202, the number and shape of which can be set according to the specifications and shapes of the workpieces 201 to be transferred. The mounting holes 202 not only serve to mount the workpieces 201, but also give precise positioning to the workpieces 201, so that the workpieces 201 can be precisely positioned on the target workstations for machining and production. In order to further improve the machining efficiency of the workpieces 201 on the positioning jig 20, a positioning column 203 is installed at one corner position of the positioning jig 20, so that the workpiece 201 machining equipment can cooperate with the positioning column 203 to precisely position the part of the workpiece 201 to be machined.

[0038] Further, the left and right sides of the conveying line 2 are respectively provided with positioning cylinders 4, the extension ends of the positioning cylinders 4 are provided with positioning blocks 40 matched with the workpiece 201, and the two positioning cylinders 4 arranged oppositely simultaneously push the positioning blocks 40 to stably position the workpiece 201 before or during the machining of the workpiece 201, so as to prevent the workpiece 201 from shaking and affecting the machining efficiency.

[0039] Specifically, at least one mounting frame 5 is arranged on one side end surface of the workbench 1, the mounting frame 5 can be used to mount the workpiece 201 machining equipment or other mechanisms and devices used for machining the workpiece 201, so that the integrity and integration of the annular conveying mechanism are stronger.

[0040] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Although the present application is disclosed as above with the preferred embodiment, it is not intended to limit the present application. Any skilled person in the art can make some changes or modifications to the above disclosed technical content without departing from the technical solution of the present application, and any simple modification, equivalent change and modification of the above embodiment within the scope of the technical solution of the present application are all within the scope of the present application.

Claims

1. An endless conveyor mechanism, characterized by, The utility model provides a workbench, the workbench is equipped with the conveying line of '' back ” character shape on, a plurality of abutting positioning fixture is equipped with on the conveying line, the positioning fixture is used for loading the workpiece of waiting for shifting, the workbench is equipped with the material pushing assembly respectively on the top surface or the bottom surface four corners, the material pushing assembly is used for pushing a plurality of positioning fixture to drive the workpiece of waiting for shifting to move on the conveying line circularly. The conveying line includes a limiting strip mounted on the workbench and a pressing strip provided on the limiting strip. The width of the pressing strip is greater than that of the limiting strip, and a limiting groove is formed between the pressing strip and the limiting strip.

2. An endless conveyor according to claim 1, wherein, The positioning fixture is in a rectangular shape, and both ends thereof are slidably sleeved in two opposite parallel limiting grooves.

3. An endless conveyor as claimed in claim 2, wherein The material pushing assembly includes two groups of first material pushing cylinders and two groups of second material pushing cylinders. The two groups of first material pushing cylinders are mounted on the top surface of the workbench and close to one pair of corner positions. The two groups of second material pushing cylinders are mounted on the bottom surface of the workbench and close to the other pair of corner positions.

4. An endless conveyor as claimed in claim 3, wherein The telescopic end of the first material pushing cylinder is provided with a push plate. The push plate is driven by the first material pushing cylinder to push the positioning fixture to move towards the second material pushing cylinder.

5. An endless conveyor as claimed in claim 4, wherein The telescopic end of the second material pushing cylinder is provided with a push block. The workbench is provided with a sliding groove in the axial direction of the second material pushing cylinder. The push block extends to above the workbench through the sliding groove. The push block is driven by the second material pushing cylinder to push the positioning fixture to move towards the first material pushing cylinder.

6. An endless conveyor as claimed in claim 4, wherein, The limiting strip close to the side of the push block is provided with an empty space. The empty space is coaxial with the sliding groove. When the first material pushing cylinder pushes the positioning fixture to move towards the second material pushing cylinder, the second material pushing cylinder moves the push block to the empty space for avoidance.

7. An endless conveyor according to claim 6, wherein, The positioning fixture is provided with a mounting hole for mounting the workpiece to be shifted.

8. An endless conveyor as claimed in claim 1, wherein, The left and right sides of the conveying line are respectively provided with positioning cylinders. The telescopic end of the positioning cylinder is provided with a positioning block for accurately positioning the workpiece.

9. An endless conveyor as claimed in claim 1, wherein, One side of the workbench is provided with a mounting frame for mounting a workpiece processing device.

10. An endless conveyor as claimed in claim 1, wherein ​

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