CN219391510U

CN219391510U - Automatic device for burn detection by etching method

Info

Publication number: CN219391510U
Application number: CN202223271820.3U
Authority: CN
Inventors: 于继静; 汪慧君; 罗建勤; 张旭; 鲁世平
Original assignee: Jinhua Newsky Gear Co ltd
Current assignee: Jinhua Newsky Gear Co ltd
Priority date: 2022-12-05
Filing date: 2022-12-05
Publication date: 2023-07-21
Anticipated expiration: 2032-12-05

Abstract

The utility model discloses an automatic device for burn detection by an etching method, which comprises a working frame, a control cabinet, a sliding lifting mechanism, a material frame and a plurality of containers, wherein the control cabinet, the sliding lifting mechanism, the material frame and the containers are arranged on the working frame, the control cabinet is provided with a PLC control unit, the material frame is fixed below the sliding lifting mechanism, and an operation screen drives the sliding lifting mechanism to slide by conveying instructions to the PLC control unit and controls the depth and time of the material frame immersed in the containers. Compared with the prior art, the utility model has the advantages that the sliding lifting mechanism is controlled to slide and the material frame is controlled to lift through the arrangement of the PLC control unit, so that the depth and the time length of the material frame immersed in the container are controllable, the immersing, the taking out and the reaction time length of the gear to be detected are not required to be manually operated, and the operation instructions in the PLC control unit can be repeatedly used, thereby not only reducing the labor intensity of operators, but also avoiding the operators touching the reaction solution when immersing or taking out the gear to be detected, and greatly improving the safety of the operators during working.

Description

Automatic device for burn detection by etching method

Technical Field

The utility model relates to burn detection for a low-carbon alloy steel carburized gear, relates to the technical field of burn detection devices, relates to an automatic device for burn detection, and particularly relates to an automatic device for burn detection by an etching method.

Background

When the gear is machined, a large amount of grinding heat is inevitably generated, one part of the generated grinding heat is taken away by cooling liquid, the other part of the generated grinding heat is conducted into a shallow surface layer of the machined gear, the temperature of the surface layer of the gear is quickly increased, a tempering layer is formed on a shallow layer of a tooth surface when the grinding heat is generated in a large amount, and even the phase change or even melting temperature can be reached when the grinding is abnormal, a secondary quenching layer is formed through cooling liquid chilling, so that grinding burn is formed, and if the grinding burn on the surface of the gear cannot be accurately detected and timely treated, the product performance and the service life are greatly reduced, and great economic loss is caused.

The gear grinding burn detection method comprises 6 detection methods of a color observation method, an acid etching method, a surface microhardness test method, a residual stress measurement method, a metallographic detection method and a magneto-elastic method, wherein the acid etching method utilizes different microscopic structures of steel materials to have different sensitivities to acid etching, so that the grade of grinding burn can be determined from the color of the steel materials after acid etching, and the gear grinding burn detection method is a traditional detection method, has wider application, is manually operated and timed during the existing operation, has complex and tedious operation process, high labor intensity and has a large safety risk problem due to the use of acid-base corrosive reaction solution.

Disclosure of Invention

Aiming at the problems of high labor intensity and high potential safety hazard of manual operation in gear burn detection, the utility model aims to provide an automatic device for burn detection by an etching method, which is used for automatically immersing a reaction solution and controlling the immersion time when the gear is subjected to burn detection, so that an operator is prevented from touching the reaction solution, and the safety is improved.

The technical scheme adopted for solving the technical problems is as follows: an automatic device for burn detection by etching method comprises a working frame;

the working frame is provided with a control cabinet, an operation screen, a sliding lifting mechanism, a material frame and a plurality of containers which are arranged in a straight line, wherein the control cabinet is provided with a PLC control unit, and the operation screen drives the sliding lifting mechanism to work by conveying instructions to the PLC control unit;

the working frame is sequentially provided with a to-be-reacted zone, a reaction zone and a reacted zone according to the working sequence, and a plurality of containers are placed in the range of the reaction zone;

the sliding lifting mechanism is slidably arranged above the working frame, and the operation screen can control the sliding and stopping of the sliding lifting mechanism through the PLC control unit;

the material frame is fixed below the sliding lifting mechanism, and when the sliding lifting mechanism slides to the upper part of the reaction zone, the operation screen can control the lifting or descending of the material frame through the PLC control unit, the material frame moves along with the sliding lifting mechanism and stops, the material frames can be immersed into the container one by one, and the PLC control unit can control the immersion depth and immersion time of the material frames into the container.

The utility model further adopts the following preferable scheme: the working frame is provided with a sliding rail, the sliding lifting mechanism is connected with the sliding rail in a sliding manner, and the working frame and the sliding lifting mechanism are driven by a driving belt or a screw rod.

The utility model further adopts the following preferable scheme: the sliding lifting mechanism comprises a sliding block and a lifting cylinder, wherein the lifting cylinder is fixed on the sliding rail, and the sliding lifting mechanism is slidably mounted on the sliding rail through the sliding block.

The utility model further adopts the following preferable scheme: the material frame is provided with a placing cavity with one side open, and the cavity wall and the cavity bottom of the placing cavity are respectively provided with a plurality of through holes.

The utility model further adopts the following preferable scheme: the PLC control unit is provided with a time delay module, and the PLC control unit controls the time length of the material frame immersed in the container through the time delay module.

The utility model further adopts the following preferable scheme: each container is filled with various reaction solutions for etching, and the reaction solutions are NaOH reaction solution, clear water, nitric acid reaction solution, clear water, hydrochloric acid reaction solution, clear water, naOH reaction solution, clear water and rust preventive oil in turn according to the immersion sequence.

The utility model further adopts the following preferable scheme: the side wall of the container is provided with a tap for replacing the reaction solution.

The utility model further adopts the following preferable scheme: a cover is covered above the container, and the cover limits volatilization of each reaction solution.

Compared with the prior art, the utility model has the advantages that the sliding lifting mechanism fixed with the material frame slides through the arrangement of the PLC control unit, the material frame filled with the gear to be detected can be immersed into the container filled with the reaction solution through descending the material frame, the immersion depth and the immersion time of the gear to be detected in the container are controlled, the gear to be detected is immersed in and taken out from each container, and the reaction time with the reaction solution is controlled, manual operation is not needed, the operation instruction input in the PLC control unit can be repeatedly used, the labor intensity of an operator is reduced, the operator is prevented from touching the reaction solution when the gear to be detected is immersed in or taken out, and the safety of the operator during working is greatly improved.

Drawings

The present utility model will be described in further detail below in conjunction with the drawings and the preferred embodiments, but it will be appreciated by those skilled in the art that these drawings are drawn merely for the purpose of illustrating the preferred embodiments and should not therefore be taken as limiting the scope of the utility model, and furthermore, unless specifically indicated, the drawings are merely schematic in nature to conceptually illustrate the composition or construction of the objects described and may contain exaggerated representations, and the drawings are not necessarily drawn to scale.

FIG. 1 is a schematic view of the structure of the operation period of the preferred embodiment of the present utility model;

FIG. 2 is an enlarged schematic view of the portion A of FIG. 1 according to the preferred embodiment of the present utility model;

FIG. 3 is a schematic view showing a state that a material frame is immersed in a container during an operation period of the preferred embodiment of the present utility model;

FIG. 4 is a schematic diagram illustrating an idle state during a non-operation period according to a preferred embodiment of the present utility model;

fig. 5 is a schematic view showing the construction of a work frame according to a preferred embodiment of the present utility model.

In the figure: 1. the device comprises a working frame 11, a region to be reacted, 12, a reaction region 13, a reacted region 14 and a sliding rail; 2. a control cabinet; 3. an operation screen; 4. a slide block; 5. lifting air cylinders, 51 and telescopic rods; 6. a material frame 61 and a placing cavity; 7. a container; 8. a conduit; 9. a water tap; 10. and a cover.

Detailed Description

The preferred embodiments of the present utility model will be described in detail below with reference to the drawings, and those skilled in the art will appreciate that the descriptions are merely illustrative, exemplary, and should not be construed as limiting the scope of the present utility model.

It should be noted that: like reference numerals denote like items in the following figures, and thus once an item is defined in one figure, it may not be further defined and explained in the following figures.

The embodiment mainly describes an automatic device for burn detection by an etching method, which is used for automatically immersing a gear into a reaction solution and controlling the immersing time when the gear is subjected to burn detection, avoiding an operator touching the reaction solution and improving the safety, and specifically comprises the following steps:

as shown in fig. 1-5, an automatic device for burn detection by etching method comprises a working frame 1, a control cabinet 2, an operation screen 3, a sliding lifting mechanism, a material frame 6 and a plurality of containers 7, wherein the material frame 6 is provided with a placing cavity 61 with one side open, the cavity wall and the cavity bottom of the placing cavity 61 are respectively provided with a plurality of through holes, the placing cavity 61 can be used for placing a gear to be detected, in the embodiment, the control cabinet 2 and the operation screen 3 are arranged on one side of the working frame 1, the sliding lifting mechanism can be arranged on the working frame 1 in a left-right sliding manner, the containers 7 are arranged on the working frame 1, the sliding lifting mechanism can slide left-right above the containers 7, the sliding lifting mechanism comprises a lifting cylinder 5, and the material frame 6 is fixed at the lower end of a telescopic rod 51 of the lifting cylinder 5.

For the slip of the drive slip elevating system of being convenient for and the flexible of lift cylinder 5 telescopic link 51, switch board 2 is equipped with the PLC control unit, and the PLC control unit is connected to the operation screen 3 electricity, and the operation screen 3 can drive the slip elevating system work through carrying instruction to the PLC control unit.

In this embodiment, a sliding rail 14 is provided on the working frame 1, the sliding lifting mechanism further includes a sliding block 4, the lifting cylinder 5 is fixed on the sliding block 4, and the telescopic rod 51 of the lifting cylinder 5 can longitudinally penetrate out of the sliding block 4, the sliding lifting mechanism is slidably mounted on the sliding rail 14 through the sliding block 4, the operation screen 3 inputs a left-moving or right-moving instruction and a moving distance through the PLC control unit to control the sliding and stopping of the sliding block 4, preferably, a screw is rotatably mounted on the working frame 1, and the sliding block 4 is in threaded connection with the screw, and the screw is driven to rotate forward or backward through a motor connecting gear, so as to realize the left-moving or right-moving of the sliding block 4; or a conveyor belt can be arranged on the working frame and connected with the sliding block 4, and the sliding block 4 can move left or right through forward transmission or reverse transmission of the conveyor belt.

The working frame 1 is provided with a to-be-reacted zone 11, a reaction zone 12 and a reacted zone 13 in sequence from left to right, a plurality of containers 7 are placed in the range of the reaction zone 12, when the sliding block 4 moves to the position above the to-be-reacted zone 11 and the reacted zone 13, the PLC control unit cannot control the telescopic rod 51 of the lifting cylinder 5 to stretch, namely the material frame 6 is positioned at an initial position higher than the plurality of containers 7; when the slide block 4 slides to the upper part of the reaction area 12, the material frame 6 can be controlled to descend through the lifting cylinder 5 according to the operation instruction input to the PLC control unit, and the depth of the material frame 6 with the gear to be detected extending into the container 7 can be controlled through the operation instruction.

Various reaction solutions are filled in a plurality of containers 7, one container 7 can only be filled with one reaction solution, in order to ensure that the gear to be detected in the material frame 6 is fully contacted with the reaction solution, the PLC control unit is provided with a delay module, when the PLC control unit drives the material frame 6 to be immersed in the reaction solution in the container 7 through the lifting cylinder 5, namely, when the telescopic rod 51 of the lifting cylinder 5 stops stretching out, the delay module is started, the delay module controls the time for immersing the material frame 6 in the container 7, and when the delay of the delay module is finished, the PLC control unit controls the material frame 6 to be lifted out of the reaction solution.

Because the gear burn detection needs to react with various reaction solutions, namely the PLC control unit controls the material frame 6 to dip, stay and rise the container 7 filled with the reaction solution one by one, and the contact of different reaction solutions can cause chemical changes of the reaction solution, namely the detection result between the gear to be detected and the reaction solution is influenced, clear water is placed between adjacent reaction solutions, and the clear water is used for cleaning the gear to be detected immersed in the previous reaction solution.

In this embodiment, the process of immersing the gear to be detected in the plurality of containers 7 is as follows: degreasing (NaOH solution) → cleaning (clear water) → nitric acid etching (nitric acid solution) → cleaning (clear water) → decolorizing (hydrochloric acid solution) → cleaning (clear water) → neutralization (NaOH solution) → cleaning (clear water) → immersion of rust preventive oil, after the above immersion process, the size to be detected is placed in the reacted area 13 by a manual or mechanical arm, and burn judgment is performed on the reacted gear by a manual work.

In order to facilitate replacement of the reaction solution in the container 7, in this embodiment, a conduit 8 communicating with the inner wall of the container 7 is installed below the side wall of the container 7, and a faucet 9 is provided on the conduit 8 to control conduction or closure of the conduit 8.

The working time of workers in the factory is limited every day, and each acid-base reaction solution involved in the embodiment volatilizes at normal temperature, so as to ensure that the concentration of each reaction solution is not influenced by external factors in the non-working period after the reaction solution is added, i.e. to avoid the volatilization of the reaction solution when the workers rest, a cover 10 can be arranged to cover a plurality of containers 7 to limit the volatilization of each reaction solution.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "front", "rear", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model.

While the foregoing has been directed to an automated burn test apparatus according to the present utility model, and while the foregoing is directed to illustrative embodiments of the present utility model, and wherein the present utility model is described with particularity, it is to be understood that the foregoing is merely illustrative of the principles and advantages of the utility model, and that various modifications and alterations may be made in the utility model without departing from the spirit and scope of the utility model as hereinafter claimed.

Claims

1. An automatic device for burn detection by etching method comprises a working frame;

the automatic feeding device is characterized in that a control cabinet, an operation screen, a sliding lifting mechanism, a material frame and a plurality of containers which are arranged in a straight line are arranged on the working frame, the control cabinet is provided with a PLC control unit, and the operation screen drives the sliding lifting mechanism to work through conveying instructions to the PLC control unit;

2. The automated burn-in apparatus of claim 1 wherein the work frame is provided with a slide rail, the sliding and lifting mechanism is slidably connected to the slide rail, and the work frame and the sliding and lifting mechanism are driven by a belt or a screw.

3. The automated burn-in apparatus of claim 2 wherein the slip elevator mechanism comprises a slider and an elevator cylinder, the elevator cylinder is secured to the slide and the slip elevator mechanism is slidably mounted to the slide rail by the slider.

4. The automated burn-in apparatus according to claim 1, wherein the material frame is provided with a placement cavity having an opening at one side, and a cavity wall and a cavity bottom of the placement cavity are each provided with a plurality of through holes.

5. The automated apparatus for burn-in detection by etching of claim 1, wherein the PLC control unit is provided with a delay module, and wherein the PLC control unit controls the length of time the frame is immersed in the container by the delay module.

6. An automated apparatus for burn-in detection by an etching method according to claim 1, wherein each of the containers is filled with a reaction solution for the etching method, and the reaction solution is NaOH solution, clear water, nitric acid solution, clear water, hydrochloric acid solution, clear water, naOH solution, clear water, rust preventive oil in order of immersion.

7. An automated apparatus for burn-in detection by etching as defined in claim 1 wherein said vessel sidewall is provided with a tap for changing the reaction solution.

8. An automated apparatus for burn-in detection by etching as defined in claim 1 wherein a cover is provided over said container, said cover limiting the volatilization of each reaction solution.