Accurate positioning mechanism for chain transmission logistics line

Abstract

The utility model relates to the technical field of chain conveyors, and discloses a chain conveying logistics line accurate positioning mechanism which comprises two conveying chains and a plurality of tool plates, the tool plates are installed between the two conveying chains, and the conveying chains drive the tool plates to move in a conveying mode. An open type linear bearing is arranged at the bottom of the tool plate, a linear rail is arranged below the conveying chain and located on the motion trail of the open type linear bearing, and the open type linear bearing is in sliding fit with the linear rail, so that online code printing, rating and / or robot grabbing are facilitated, and the precise positioning function is achieved. And automatic operation faults are eliminated, so that production is smoothly carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of chain conveyors, in particular to a precise positioning mechanism for a chain transmission logistics line. Background Technique

[0002] In the machining industry, logistics lines using chain transmission are widely used. Their relatively low cost and high efficiency of operation have been recognized by the industry. They are indispensable process equipment for the construction of automated production units. The current chain transmission logistics line includes two conveyor chains, and multiple tooling plates are installed between the two conveyor chains. The chains drive the tooling plates to move cyclically to transport goods. At the front of the chain transmission logistics line, there are devices for automated operations such as coding, grading, and robot grasping, which perform corresponding functions according to the goods on the tooling plates.

[0003] Chinese Patent Document CN211768209U discloses a single-station precise positioning type loading conveyor line, including a conveyor line body. The conveyor line body includes two parallel frames, the frames are of right-angle structure, a driving sprocket and a driven sprocket are respectively arranged at both ends of the frame, a servo motor connected thereto is arranged on one side of the driving sprocket, the servo motor is fixedly connected to one side of the frame, two chains are connected between the driving sprocket and the driven sprocket, multiple chain transmission plates are arranged between the two chains, chain support plates are arranged below both chains, one side of the chain support plate is fixedly connected to the frame, a workpiece fixing plate is arranged at the middle position of the chain transmission plate, the workpiece fixing plate is detachably connected to the chain transmission plate by bolts, positioning pin columns matching the workpiece are arranged on the workpiece fixing plate, and a workpiece placement detection device for detecting whether the workpiece is placed properly is arranged at the loading end of the conveyor line body on the frame, a workpiece fixing plate stop positioning device for accurately determining the stop position of the workpiece fixing plate and a workpiece presence detection device for determining whether there is a workpiece on the workpiece fixing plate are respectively arranged on both sides at the unloading end.

[0004] The prior art has the following deficiencies: During use, due to mechanical structure wear or manufacturing precision problems of the chains, the tooling plates carried by the transmission chains will have position deviations up, down, left, and right, which will hinder the operations of automated equipment such as online coding, grading, and robot grasping, resulting in the abnormal operation of automated production. Summary of the Utility Model

[0005] The utility model aims to solve the technical problem of how to accurately position a tooling plate on a chain transmission logistics line to facilitate automated operation, and provides an accurate positioning mechanism for a chain transmission logistics line, which includes two transmission chains and a plurality of tooling plates. The tooling plates are installed between the two transmission chains, and the transmission chains drive the tooling plates to transmit and move. The characteristic lies in that an open type linear bearing is arranged at the bottom of the tooling plate, a linear track is arranged below the transmission chain, the linear track is located on the movement track of the open type linear bearing, and the open type linear bearing is in sliding fit with the linear track.

[0006] Preferably, an automated device is arranged above the transmission chain, the position of the linear track corresponds to the automated device, and the linear track covers a predetermined area of the automated device.

[0007] In order to reduce the installation accuracy and avoid jamming during the operation of the work plate, the head of the linear track is conical.

[0008] In order to facilitate the turning of the work plate, the tail of the linear track is located near the turning point of the transmission chain.

[0009] Furthermore, a transverse bottom plate is arranged at the bottom of the linear track, and two longitudinal bottom plates are arranged at the bottom of the transverse bottom plate. The left and right ends of the longitudinal bottom plates are fixedly connected to the outer shells on the outer sides of the two transmission chains.

[0010] In order to improve the stability, a plurality of open type linear bearings are installed at the bottom of the tooling plate, and a corresponding number of linear tracks are arranged below the transmission chain.

[0011] In order to facilitate the installation and operation of the tooling plate and the chain, the two ends of the tooling plate are small in the middle and large, and two installation holes are arranged at the two ends. The two ends of the tooling plate are fixed on the transmission chain through bolts.

[0012] The utility model has the following beneficial effects:

[0013] 1. When the utility model works, the chain-type material transmission line runs at a constant speed under the drive of a motor. When the tooling plate equipped with an open type linear bearing runs to a predetermined area, the open type linear bearing automatically combines with the linear guide rail to generate a matching relationship, effectively ensuring the degrees of freedom in the four directions of up, down, left, and right, realizing the accurate positioning of the material fixture on the material line, facilitating functions such as online coding, rating, and / or robot grasping with accurate positioning, eliminating automated operation failures, and enabling the production to proceed smoothly.

[0014] 2. The structure of the utility model is compact, practical, reliable, and the manufacturing cost is relatively low. After being verified on the site of an automated production line, it has good practicability and stability, and the use effect is good. Description of the Drawings

[0015] Figure 1 Schematic diagram of the precise positioning mechanism of the chain transmission logistics line of the present utility model;

[0016] Figure 2 Schematic diagram of the installation position of the linear track;

[0017] Figure 3 is Figure 2 top view of;

[0018] Figure 4 Schematic diagram of multiple tooling plates;

[0019] Figure 5 is Figure 4 side view of;

[0020] Figure 6 Schematic diagram of the linear track, transverse bottom plate and longitudinal bottom plate;

[0021] Figure 7 Schematic diagram of the tooling plate and the open type linear bearing. Detailed implementation method

[0022] The following is a further detailed description through specific implementation methods:

[0023] 1. The reference numerals in the accompanying drawings of the specification include: transmission chain 1, tooling plate 2, housing 3, open type linear bearing 4, linear track 5, automation equipment 6, head 7, tail 8, transverse bottom plate 9, longitudinal bottom plate 10, mounting hole 11, base 12.

[0024] Embodiment 1

[0025] As Figures 1-7As shown, a chain transmission logistics line precision positioning mechanism includes two transmission chains 1 and multiple tooling plates 2, wherein the tooling plates 2 are installed between the two transmission chains 1, and two outer shells 3 are provided on the outer sides of the two transmission chains 1. The transmission chains 1 drive the tooling plates 2 to transmit and move, and two side-by-side open linear bearings 4 are installed at the bottom of the tooling plates 2 by bolts. Two side-by-side linear rails 5 are provided below the transmission chains 1, and the linear rails 5 are respectively located on the motion trajectories of the two open linear bearings 4, and the open linear bearings 4 are slidably matched with the linear rails 5. An automation device 6 is provided above the front of the transmission chain 1, and the position of the linear track 5 corresponds to the automation device 6. The linear track 5 is located below the front of the transmission chain 1, and the linear track 5 covers a predetermined area of ​​the automation device 6 for online coding, grading and / or robot grasping. When the tooling plate 2 runs to the predetermined area of ​​the linear track 5, the open linear bearing 4 automatically combines with the linear guide rail to produce a matching relationship, so that the freedom in the four directions of up, down, left and right is effectively guaranteed. The open linear bearing 4 and the linear track 5 are purchased directly from the market.

[0026] The linear track 5 is a cylinder, and a base 12 is provided at the bottom of the linear track 5. The connection between the linear track 5 and the base 12 is concave, and the concave part is used to cooperate with the opening of the open linear bearing 4. The head 7 of the linear track 5 is conical, guiding the open linear bearing 4 to slide with the linear track 5. The tail 8 of the linear track 5 is located near the turning point of the transmission chain 1.

[0027] A transverse bottom plate 9 is provided at the bottom of the linear track 5 , and two longitudinal bottom plates 10 are provided at the bottom of the transverse bottom plate 9 . The left and right ends of the longitudinal bottom plates 10 are fixedly connected to the outer shells 3 on the outsides of the two transmission chains 1 .

[0028] The tooling plate 2 has small ends and a large middle, and two mounting holes 11 are provided at both ends. The two ends of the tooling plate 2 are fixed to the transmission chain 1 by bolts.

[0029] The tooling plate 2 is provided with 8 mounting holes 11 , with 4 mounting holes 11 forming a group. The mounting holes 11 in each group are arranged in a rectangular shape. The tooling plate 2 is connected and fixed to the top surface of the open linear bearing 4 via a group of mounting holes 11 .

[0030] The above are only embodiments of the present utility model. Specific structures and common knowledge such as characteristics that are well-known in the art are not described in detail herein. Those of ordinary skill in the art know all the common general technical knowledge in the technical field to which the utility model belongs before the filing date or the priority date, can know all the prior art in this field, and have the ability to apply conventional experimental means before this date. Those of ordinary skill in the art can, under the inspiration given by this application, combine their own abilities to complete and implement this solution. Some typical well-known structures or well-known methods should not become an obstacle for those of ordinary skill in the art to implement this application. It should be noted that for those skilled in the art, without departing from the structure of the present utility model, several deformations and improvements can also be made, and these should also be regarded as the protection scope of the present utility model, and these will not affect the implementation effect of the present utility model and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners and the like recorded in the specification can be used to interpret the content of the claims.

Claims

1. A precise positioning mechanism for a chain transmission logistics line, comprising two transmission chains and a plurality of tooling plates, the tooling plates being installed between the two transmission chains, and the transmission chains driving the tooling plates to transmit and move, characterized in that, An open linear bearing is provided at the bottom of the tooling plate. A linear track is provided below the transmission chain. The linear track is located on the movement track of the open linear bearing, and the open linear bearing is in sliding fit with the linear track.

2. The precise positioning mechanism for the chain transmission logistics line according to claim 1, wherein: An automated device is provided above the transmission chain. The position of the linear track corresponds to that of the automated device, and the linear track covers a predetermined area of the automated device.

3. The precise positioning mechanism for the chain transmission logistics line according to claim 2, characterized in that: The head of the linear track is conical.

4. The precise positioning mechanism of the chain transmission logistics line according to claim 3, characterized in that: The tail of the linear track is located near the turning point of the transmission chain.

5. The precise positioning mechanism of the chain transmission logistics line according to any one of claims 1-4, characterized in that: A transverse bottom plate is provided at the bottom of the linear track, and two longitudinal bottom plates are provided at the bottom of the transverse bottom plate. The left and right ends of the longitudinal bottom plates are fixedly connected to the outer shells on the outer sides of the two transmission chains.

6. The precise positioning mechanism for the chain transmission logistics line according to claim 5, characterized in that: A plurality of open linear bearings are installed at the bottom of the tooling plate, and a corresponding number of linear tracks are provided below the transmission chain.

7. The precise positioning mechanism for the chain transmission logistics line according to claim 6, characterized in that: The two ends of the tooling plate are small and the middle is large, and two mounting holes are provided at the two ends. The two ends of the tooling plate are fixed to the transmission chain by bolts.

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