Automatic sample feeding and detecting system for evaluating salt spray corrosion of galvanized sheet

Abstract

The utility model provides an automatic sample feeding and detecting system for salt spray corrosion evaluation of a galvanized sheet, which relates to the technical field of salt spray corrosion evaluation of galvanized sheets and comprises a material taking and placing mechanism and a material storing and feeding mechanism arranged on the lower side of the material taking and placing mechanism. The fourth-order cam and the eighth-order cam are mounted on the two sides of the main supporting plate through cam transmission shafts; the fourth-order cam drives the X-axis swing rod and the X-axis sliding table to slide left and right along the X-axis sliding rail, one side of the X-axis sliding rail is connected with a suction cup mounting plate, and a suction cup is arranged on the suction cup mounting plate. The eight-order cam drives the Y-axis swing rod to swing up and down along the Y-axis guide groove. Material taking and discharging actions of the material taking and discharging mechanism are mainly realized by matching a group of conjugate cam mechanisms with a connecting rod sliding block mechanism, the end part of a connecting rod is provided with a pneumatic sucking disc for adsorbing a detected plate, and the detected plate can be accurately positioned by reasonably configuring the relationship among the extending stroke, the near rest angle and the far rest angle of the two groups of cams. Therefore, the grabbing connecting rod can complete the expected action within the set time on the X axis and the Y axis.

Description

Technical Field

[0001] The utility model relates to the technical field of salt spray corrosion evaluation of galvanized plates, in particular to an automatic sample delivery and detection system for salt spray corrosion evaluation of galvanized plates. Background Art

[0002] The severity of salt spray corrosion of the plate is evaluated by counting the area of ​​salt spray corrosion on the plate. The salt spray corrosion evaluation device generally requires a high-definition camera to take pictures of the corroded plate and then use image processing technology to count the rust area in the photo.

[0003] Most existing salt spray corrosion evaluation device test chambers are simple aluminum alloy cabinets with a pull-out plate installed inside for placing the tested plate. Since there is no limit device between the pull-out plate surface and the tested plate, it is difficult to fix the plate in the center position of the pull-out plate before each test, which affects the quality of the photo. Whether the plate is in the center position in the photo directly affects the accuracy of the test results.

[0004] Therefore, it is necessary to design and develop a salt spray corrosion evaluation device with both automatic feeding and automatic alignment to solve the problems existing in the existing devices. Utility Model Content

[0005] The utility model provides an automatic sample delivery and detection system for salt spray corrosion evaluation of galvanized sheet, which solves the problem that in the existing automatic sample delivery and detection system, since there is no limit device between the surface of the pull-out plate and the plate to be tested, it is difficult to fix the plate in the center position of the pull-out plate before each test, which affects the quality of photography and thus affects the accuracy of the test results.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] An automatic sample feeding and testing system for evaluating salt spray corrosion of galvanized sheet, comprising a material taking and discharging mechanism and a material storage and feeding mechanism arranged below the material taking and discharging mechanism;

[0008] The material picking and unloading mechanism includes a main support plate, and a four-step cam and an eight-step cam are installed on both sides of the main support plate through a cam drive shaft; the four-step cam drives the X-axis swing arm and the X-axis slide to slide left and right along the X-axis slide rail, and a suction cup mounting plate is connected to one side of the X-axis slide rail, and a suction cup mounting plate is provided on the suction cup mounting plate; the eight-step cam drives the Y-axis swing arm to swing up and down along the Y-axis guide groove, and the end of the Y-axis guide groove is connected to the Y-axis guide rail, and the lower end of the Y-axis guide rail is fixed to the suction cup mounting plate by bolts.

[0009] Furthermore, the storage and feeding mechanism includes a double-axis cylinder, a sheet metal bracket is arranged above the double-axis cylinder, the limit shaft is fixed on the sheet metal bracket on both sides, the hinge shaft is rotatably installed on the sheet metal bracket, and the limit plate is fixed on the hinge shaft and rotates with the hinge shaft.

[0010] Furthermore, the storage and feeding mechanism also includes a pneumatic suction cup, which is arranged at the lower part of the suction cup.

[0011] Furthermore, a pulley is installed at the lower end of the X-axis swing arm, the lower end of the pulley is connected to the X-axis slide, the X-axis slide moves along the X-axis slide rail, and the X-axis slide is fixedly connected to the Y-axis guide slide by bolts.

[0012] Furthermore, a guide pulley is installed at the end of the Y-axis swing arm, and the pulley guide slides in the Y-axis guide groove along the horizontal direction.

[0013] Furthermore, a servo motor is also provided on the main support plate, and the output shaft of the servo motor is connected to a synchronous belt transmission mechanism, and the synchronous belt transmission mechanism is connected to a cam transmission shaft.

[0014] Furthermore, an opening is provided on the main support plate, a bearing is provided in the opening, and the cam drive shaft is provided on the main support plate through the bearing.

[0015] Furthermore, the synchronous belt transmission mechanism includes a rotating wheel and a belt, and the rotating wheel of the synchronous belt transmission mechanism is connected to the cam drive shaft through the belt; the rotating wheel is connected to the photoelectric switch trigger turntable, and the photoelectric switch trigger turntable is connected to the photoelectric switch fixed on the main support plate.

[0016] Furthermore, an X-axis return spring is also provided on the main support plate on the X-axis moving cam side, one end of the X-axis return spring is connected to the X-axis slide, and the other end of the X-axis return spring is fixedly connected to the main support plate.

[0017] Furthermore, a Y-axis return spring is provided on the main support plate on one side of the eight-step cam, one end of the Y-axis return spring is fixedly connected to the main support plate, and the other end of the Y-axis return spring is connected to the Y-axis swing rod.

[0018] The beneficial effects of the present invention are:

[0019] The utility model realizes automatic transportation of galvanized sheets through the material taking and discharging mechanism. Compared with manual transportation, it is more efficient, less costly, and the position accuracy of transportation is guaranteed. By setting up the material storage mechanism, the galvanized sheets can be automatically lifted, which is convenient for subsequent inspection of the galvanized sheets.

[0020] The material taking and placing actions of the material taking and placing mechanism are mainly realized through a set of conjugate cam mechanisms cooperating with a connecting rod sliding block mechanism, and the end of the connecting rod is provided with a pneumatic suction cup for adsorbing the detected plate, and by reasonably configuring the relationship between the push stroke and the near and far rest angles of the two sets of cams, the expected action of the grabbing connecting rod on the X axis and the Y axis within the set time can be realized. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the following description of the drawings is only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0022] Figure 1 It is the overall schematic view of the utility model.

[0023] Figure 2 It is the X axis moving cam side schematic view of the material taking and placing mechanism in the utility model.

[0024] Figure 3 It is the Y axis moving cam side schematic view of the material taking and placing mechanism in the utility model.

[0025] Figure 4 It is the overall schematic view of the material storing mechanism in the utility model.

[0026] Figure 5 It is Figure 4 Partial schematic view.

[0027] Explanation of reference numerals:

[0028] 1, material taking and placing mechanism; 101, main support plate; 2, material storing mechanism; 3, four-stage cam; 4, X axis swing rod; 5, X axis sliding table; 6, suction cup mounting plate; 7, X axis return spring; 8, X axis sliding rail; 9, servo motor; 10, eight-stage cam; 11, Y axis swing rod; 12, Y axis return spring; 13, Y axis guide groove; 14, synchronous belt transmission mechanism; 15, cam transmission shaft; 16, photoelectric switch; 17, photoelectric switch trigger turntable; 18, Y axis guide sliding table; 19, Y axis guide sliding rail; 20, sheet metal support; 21, limit shaft; 22, hinge shaft; 23, limit plate; 24, double-shaft air cylinder; 25, pneumatic suction cup; 26, cushion block. DETAILED DESCRIPTION

[0029] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict. The utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0032] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values ​​described in these embodiments do not limit the scope of the present invention. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0033] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0034] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0035] The utility model provides a technical solution: an automatic sampling detection system for evaluating salt spray corrosion of galvanized sheet, such as Figure 1-5 As shown, it mainly consists of two parts, namely the material taking and releasing mechanism 1 and the material storing and feeding mechanism 2.

[0036] The picking and unloading actions of the picking and unloading mechanism 1 are mainly realized by a set of conjugate cam mechanisms and a connecting rod slider mechanism; a suction cup is installed at the end of the connecting rod to absorb the inspected plate. By reasonably configuring the push stroke of the two sets of cams and the relationship between the near rest and far rest angles, the grabbing connecting rod can complete the expected action on the X-axis and Y-axis within the set time.

[0037] The storage and feeding mechanism 2 includes a sheet metal support 20 and a dual-axis cylinder 24. The unloading and loading mechanism 1 places the sheet metal to be tested on the workbench of the dual-axis cylinder 24 of the storage and feeding mechanism 2. The pneumatic suction cup 25 installed on the workbench can fix the material. Then the dual-axis cylinder 24 starts to operate, pushing the sheet metal to be tested upward onto the sheet metal support 20. Each layer of the sheet metal support 20 is equipped with a pad 26 to support the corroded sheet metal. The upper end of the pad 26 has a limit shaft 21 for fixing the pad 26. When the dual-axis cylinder 24 is in operation, it can push the stacked sheets upward as a whole. After taking a picture of the corroded sheet on the top layer, the sheet metal can be removed. This action can be repeated to complete a cycle of automatic loading.

[0038] The four-step cam side of the pick-up and unloading mechanism 1 mainly consists of seven parts: a four-step cam 3, an X-axis swing rod 4, an X-axis slide 5, a suction cup mounting plate 6, an X-axis return spring 7, an X-axis slide rail 8, and a servo motor 9.

[0039] The eight-step cam side of the material taking and unloading mechanism 1 mainly consists of six parts: an eight-step cam 10, a Y-axis swing rod 11, a Y-axis return spring 12, a Y-axis guide groove 13, a synchronous belt transmission mechanism 14, and a cam transmission shaft 15.

[0040] The material taking and unloading mechanism 1 includes a main support plate 101, which is provided with an opening, in which a bearing is provided, and the cam drive shaft 15 is provided on the main support plate 101 through the bearing;

[0041] The fourth-step cam 3 and the eighth-step cam 10 are installed on both sides of the main support plate 101 through the cam drive shaft 15; the fourth-step cam 3 drives the X-axis swing arm 4 and the X-axis slide 5 to slide left and right along the X-axis slide rail 8, and a pulley is installed at the lower end of the X-axis swing arm 4, and the lower end of the pulley is connected to the X-axis slide 5. The X-axis slide 5 moves along the X-axis slide rail 8, and the X-axis slide 5 is fixedly connected to the Y-axis guide slide 18 by bolts. One side of the X-axis slide rail 8 is connected to a suction cup mounting plate 6, and a suction cup is provided on the suction cup mounting plate 6.

[0042] An X-axis return spring 7 is also provided on the main support plate 101 on the X-axis moving cam side. One end of the X-axis return spring 7 is connected to the X-axis slide 5, and the other end of the X-axis return spring 7 is fixedly connected to the main support plate 101.

[0043] The eight-step cam 10 drives the Y-axis swing arm 11 to swing up and down along the Y-axis guide groove 13. The end of the Y-axis guide groove 13 is connected to the Y-axis guide rail 19. A guide pulley is installed at the end of the Y-axis swing arm 11, and the pulley guide slides horizontally in the Y-axis guide groove 13; the lower end of the Y-axis guide rail 19 is fixed to the suction cup mounting plate 6 by bolts.

[0044] A Y-axis return spring 12 is also provided on the main support plate 101 on one side of the eight-step cam 10. One end of the Y-axis return spring 12 is fixedly connected to the main support plate 101, and the other end of the Y-axis return spring 12 is connected to the hook on the Y-axis swing rod 11.

[0045] A servo motor 9 is further provided on the main support plate 101 . The output shaft of the servo motor 9 is connected to a synchronous belt transmission mechanism 14 , and the synchronous belt transmission mechanism 14 is connected to a cam transmission shaft 15 .

[0046] The synchronous belt transmission mechanism 14 includes a rotating wheel and a belt. The rotating wheel of the synchronous belt transmission mechanism 14 is connected to the cam drive shaft 15 through the belt; the rotating wheel is connected to the photoelectric switch trigger turntable 17, and the photoelectric switch trigger turntable 17 is connected to the photoelectric switch 16 fixed on the main support plate 101.

[0047] The storage and feeding mechanism 2 includes a double-axis cylinder 24, which is provided with a pneumatic suction cup 25, and the pneumatic suction cup 25 is arranged under the suction cup; a sheet metal bracket 20 is arranged above the double-axis cylinder 24, and the limit shaft 21 is fixed on the sheet metal bracket 20 on both sides, the hinge shaft 22 is rotatably installed on the sheet metal bracket 20, and the limit plate 23 is fixed on the hinge shaft 22 and rotates with the hinge shaft 22 (the length of the left side of the limit plate 23 is smaller than the length of the right side).

[0048] When the pneumatic suction cup 25 of the storage and feeding mechanism 2 places the inspected sheet into the upper suction cup position of the dual-axis cylinder 24, the suction cup holds the sheet in place. The dual-axis cylinder 24 then extends and pushes the sheet upward to the lowest position of the sheet metal storage support. The cylinder's stroke just pushes the sheet from the lowest limit plate 23 to the upper limit plate 23, and then lifts the topmost sheet to the photo inspection position. The rear end of the limit plate 23 is pressed against the limit shaft 21, thus supporting the inspected sheet. The entire system can be embedded in a box to reduce volume and facilitate portability.

[0049] When the servo motor rotates, power is transmitted to the cam drive shaft 15 through the synchronous belt transmission mechanism 14. The drive shaft is installed on the main support plate 101. The main support plate 101 has a hole and is connected to the cam drive shaft 15 through bearings. The cam drive shaft 15 is connected by a key to enable the cams on both sides to rotate synchronously.

[0050] The rotation of the fourth-step cam 3 causes the X-axis swing arm 4 to swing along the X-axis. A pulley is mounted on the end of the X-axis swing arm 4, forming a surface contact with the X-axis slide 5. Driven by the X-axis swing arm 4, the X-axis slide 5 moves horizontally along the X-axis slide rail 8. The suction cup mounting plate 6 is bolted to the X-axis slide 5, and the suction cup is threadedly fixed to the suction cup mounting plate 6. When the fourth-step cam 3 rotates from the near rest section to the far rest section, the suction cup produces a horizontal displacement equal to the displacement of the fourth-step cam 3. When the fourth-step cam 3 rotates from the far rest section to the near rest section, the X-axis swing arm 4 returns to its initial position via the X-axis return spring 7.

[0051] The rotation of the eight-step cam 10 drives the Y-axis swing arm 11 to swing up and down. A guide pulley is mounted at the end of the Y-axis swing arm 11, which slides horizontally within the Y-axis guide groove 13. The end of the Y-axis guide groove 13 is connected to the Y-axis guide rail 19, the lower end of which is bolted to the suction cup mounting plate 16. The Y-axis guide slide 18 is bolted to the X-axis slide 5. When the X-axis slide 5 moves horizontally, the Y-axis guide slide 18 provides guidance and position limiting, while the Y-axis guide rail 19 and suction cup mounting plate 6 move up and down along the Y-axis.

[0052] The rotation of the fourth-step cam 3 and the eighth-step cam 10 drives the suction cup mounting plate 6 close to the storage and feeding mechanism 2, and the suction cup places the sucked plate on the pneumatic suction cup 25 of the storage and feeding mechanism 2. In short: the plate is delivered to the storage and feeding mechanism 2 through the cooperation of the fourth-step cam 3 and the eighth-step cam 8;

[0053] The working stages of the fourth-order cam 3 can be summarized as follows:

[0054] Near rest → push stroke → far rest → return stroke;

[0055] The corresponding angles are: 110°, 70°, 110°, 70°;

[0056] The working stages of the eight-step cam 10 can be summarized as follows:

[0057] Return stroke → Near rest → Push stroke → Far rest → Return stroke → Near rest → Push stroke → 8. Far rest;

[0058] The corresponding angles are: 45°, 20°, 45°, 70°, 45°, 20°, 45°, 70°;

[0059] The working stages of the pneumatic suction cup 25 can be summarized as follows:

[0060] The suction cup descends, takes the material, rises, moves horizontally to the left, descends, discharges the material, rises, moves horizontally to the right, descends, and takes the material in a reciprocating cycle.

[0061] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic sampling and detection system for salt spray corrosion evaluation of galvanized sheet, characterized in that: It comprises a material taking and discharging mechanism (1) and a material storing and feeding mechanism (2) arranged on the lower side of the material taking and discharging mechanism (1); The material taking and unloading mechanism (1) comprises a main support plate (101), a four-step cam (3) and an eight-step cam (10) which are mounted on both sides of the main support plate (101) via a cam transmission shaft (15); the four-step cam (3) drives the X-axis swinging rod (4) and the X-axis slide (5) to slide left and right along the X-axis slide rail (8), one side of the X-axis slide rail (8) is connected to a suction cup mounting plate (6), and a suction cup is provided on the suction cup mounting plate (6); the eight-step cam (10) drives the Y-axis swinging rod (11) to swing up and down along the Y-axis guide groove (13), the end of the Y-axis guide groove (13) is connected to the Y-axis guide rail (19), and the lower end of the Y-axis guide rail (19) is fixed to the suction cup mounting plate (6) via bolts.

2. The automatic sample delivery and detection system for galvanized sheet salt spray corrosion evaluation according to claim 1 is characterized in that: The storage and feeding mechanism (2) includes a double-axis cylinder (24), a sheet metal bracket (20) is arranged above the double-axis cylinder (24), a limiting shaft (21) is fixed to the sheet metal bracket (20) on both sides, a hinge shaft (22) is rotatably installed on the sheet metal bracket (20), and a limiting plate (23) is fixed on the hinge shaft (22) and rotates together with the hinge shaft (22).

3. The automatic sample delivery and detection system for galvanized sheet salt spray corrosion evaluation according to claim 2 is characterized in that: The storage and feeding mechanism (2) further comprises a pneumatic suction cup (25), and the pneumatic suction cup (25) is arranged at the lower part of the suction cup.

4. The automatic sample delivery and detection system for galvanized sheet salt spray corrosion evaluation according to claim 1 is characterized in that: A pulley is installed at the lower end of the X-axis swing arm (4), and the lower end of the pulley is connected to the X-axis slide (5). The X-axis slide (5) moves along the X-axis slide rail (8), and the X-axis slide (5) is fixedly connected to the Y-axis guide slide (18) by bolts.

5. The automatic sample delivery and detection system for galvanized sheet salt spray corrosion evaluation according to claim 1 is characterized in that: A guide pulley is installed at the end of the Y-axis swing rod (11), and the pulley guide slides in the Y-axis guide groove (13) along the horizontal direction.

6. The automatic sample delivery and detection system for galvanized sheet salt spray corrosion evaluation according to claim 1 is characterized in that: A servo motor (9) is also provided on the main support plate (101), and the output shaft of the servo motor (9) is connected to a synchronous belt transmission mechanism (14), and the synchronous belt transmission mechanism (14) is connected to a cam transmission shaft (15).

7. The automatic sample delivery and detection system for evaluating salt spray corrosion of galvanized sheet according to claim 6, characterized in that: An opening is provided on the main support plate (101), a bearing is provided in the opening, and the cam transmission shaft (15) is provided on the main support plate (101) via the bearing.

8. The automatic sample delivery and detection system for galvanized sheet salt spray corrosion evaluation according to claim 6 is characterized in that: The synchronous belt transmission mechanism (14) comprises a rotating wheel and a belt, wherein the rotating wheel of the synchronous belt transmission mechanism (14) is connected to a cam transmission shaft (15) via a belt; the rotating wheel is connected to a photoelectric switch triggering turntable (17), and the photoelectric switch triggering turntable (17) is connected to a photoelectric switch (16) fixed on the main support plate (101).

9. The automatic sample delivery and detection system for galvanized sheet salt spray corrosion evaluation according to claim 1, characterized in that: An X-axis return spring (7) is also provided on the main support plate on the X-axis moving cam side, one end of the X-axis return spring (7) is connected to the X-axis slide (5), and the other end of the X-axis return spring (7) is fixedly connected to the main support plate (101).

10. The automatic sample delivery and detection system for galvanized sheet salt spray corrosion evaluation according to claim 1, characterized in that: A Y-axis return spring (12) is also provided on the main support plate (101) on one side of the eight-step cam (10), one end of the Y-axis return spring (12) is fixedly connected to the main support plate (101), and the other end of the Y-axis return spring (12) is connected to the Y-axis swing rod (11).

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