Welding detection device

Abstract

The utility model discloses a welding detection device which comprises a conveying mechanism carrying a clamp, the clamp is used for loading and fixing a welding finished product to be detected, the clamp has a clamping state and a releasing state, and the detection device is provided with a material transfer station, a material detection station and a mechanical arm used for carrying the welding finished product. A clamp opening module and a material taking module are arranged on the material transfer station, the clamp opening module is used for driving a clamp to be switched between a clamping state and a releasing state, and the material taking module is used for taking down a welded finished product from the clamp; and a visual detection module is arranged on the material detection station and is used for detecting the welding condition of the welded finished product. The problem that welding falls off or the metal fasteners deform due to the fact that the metal fasteners are likely to be touched by mistake in the carrying process of existing detection steps is solved.

Description

Technical Field

[0001] The present application relates to the field of automation, and in particular to a welding detection device. Background Art

[0002] CG (cover glass) usually refers to the front glass cover of a mobile phone. During the assembly process of the mobile phone, the front glass cover needs to be aligned with the metal middle frame, and the stability of the connection between the front glass cover and the metal middle frame must be ensured.

[0003] To solve the above problems, the existing front glass cover is provided with metal fasteners around it, which are used to position the front glass cover with the mobile phone middle frame when installing, and to improve the connection stability after the metal fasteners are fastened with the mobile phone middle frame.

[0004] The front glass cover plate and the metal fasteners are usually laser welded. After welding, the weld needs to be inspected. During the inspection step, the front glass cover plate is easily touched by the metal fasteners by mistake during the transportation process, resulting in welding falling off or deformation of the metal fasteners. In this regard, the applicant has proposed a welding inspection device. Utility Model Content

[0005] The utility model discloses a welding detection device, which solves the problem that the metal fasteners are easily touched by mistake during the handling process of the existing detection steps, resulting in welding falling off or deformation of the metal fasteners.

[0006] A welding detection device, comprising a conveying mechanism carrying a clamp, wherein the clamp is used to load and fix a finished welding product to be detected, the clamp has a clamping state and a release state, and the detection device is provided with a material transfer station, a material detection station and a mechanical arm for carrying the finished welding product;

[0007] The material transfer station is provided with a clamp opening module and a material taking module, wherein the clamp opening module is used to drive the clamp to switch between a clamping state and a release state, and the material taking module is used to take the finished welding product from the clamp;

[0008] The material inspection station is provided with a visual inspection module for inspecting the welding condition of the finished welding product.

[0009] In the present application, the finished welding product is transported by a robotic arm from a material transfer station to a material inspection station. An opening clamp module is provided at the material transfer station to release the clamp when the finished welding product is being transported to avoid damage to the finished welding product. The material removal module is used to remove the finished welding product from the clamp and inspect it by a visual inspection module.

[0010] Several optional methods are also provided below, but they are not intended to be additional limitations on the above-mentioned overall solution, but are merely further supplements or preferences. Under the premise that there are no technical or logical contradictions, each optional method can be combined with the above-mentioned overall solution separately, and multiple optional methods can also be combined.

[0011] Optionally, the opening clamp module includes a base, a lifting module, and an unlocking piece, wherein the base is used to fix the lifting module, the unlocking piece is connected to the lifting module and is driven by the lifting module to be raised and lowered, and the unlocking piece is located below the clamp and is used to drive the clamp to switch from a clamping state to a released state.

[0012] Optionally, the unlocking member follows the lifting and lowering of the lifting module and has a trigger position located at the upper limit of the stroke and a constraint position located at the lower limit of the stroke. In the trigger position, the unlocking member drives the clamp to switch from a clamping state to a released state. In the constraint position, the unlocking member is away from the clamp.

[0013] Optionally, the material picking module includes a material picking suction cup for adsorbing the finished welding product, a flip frame for driving the material picking suction cup to flip, and a fixed seat for fixing the flip frame, the fixed seat is located on one side of the conveying mechanism, the flip frame is located above the conveying mechanism, and the material picking suction cup is connected to the flip frame and moves with the flip frame to form a first transmission position and a second transmission position.

[0014] Optionally, the material taking module further includes a linear module for driving the turning frame to move up and down along the fixing seat.

[0015] Optionally, a linear transmission module is provided on the material inspection station, and the linear transmission module is used to transmit the finished welding product to the visual inspection module.

[0016] Optionally, the linear transmission module includes a linear guide rail for guiding, a sliding seat slidably connected to the linear guide rail, and a positioning platform rotatably connected to the sliding seat.

[0017] The beneficial effects of this application are as follows:

[0018] 1. The clamp opening module of this application can drive the clamp to switch from the clamping state to the releasing state to avoid damage to the finished welding product when it is separated from the clamp;

[0019] 2. In this application, when the material taking module removes the finished welded product from the fixture, the linear module completes the linear rising action, which can make the finished welded product rise in a straight line before the flip frame flips over, so that the finished welded product is completely separated from the fixture and then flipped to avoid damage to the finished welded product. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of this application Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the structure of this application Figure 2 ;

[0022] Figure 3 A top view of the structural diagram of this application;

[0023] Figure 4 The structure of the clamp module in this application is shown in FIG. Figure 1 ;

[0024] Figure 5 The structure of the clamp module in this application is shown in FIG. Figure 2 ;

[0025] Figure 6 This is a schematic diagram of the structure of the material taking module in this application Figure 1 ;

[0026] Figure 7 This is a schematic diagram of the structure of the material taking module in this application Figure 1 ;

[0027] Figure 8 This is a schematic diagram of the structure of the finished welding product;

[0028] Fig. 9 is a schematic diagram of the structure of the upper end of the fixture;

[0029] Fig.10 It is a schematic diagram of the structure of the lower end of the clamp.

[0030] The reference numerals in the figures are described as follows:

[0031] 1. Conveying mechanism; 11. Clamp; 2. Material transfer station; 21. Clamp opening module; 211. Base; 212. Lifting module; 213. Unlocking piece; 22. Material taking module; 221. Material taking suction cup; 222. Turning frame; 223. Fixed seat; 224. Linear module; 3. Material inspection station; 31. Visual inspection module; 32. Linear transmission module; 321. Linear guide rail; 322. Sliding seat; 323. Positioning platform; 4. Robotic arm. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] It should be noted that when a component is referred to as being "connected" to another component, it may be directly connected to the other component or there may be a central component. When a component is referred to as being "disposed on" another component, it may be directly disposed on the other component or there may be a central component at the same time.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0035] For example Figure 8 The figure shows the finished welding product, in which A is the metal fastener and B is CG.

[0036] In the mobile phone manufacturing industry, CG (cover glass) refers to the front glass cover of a mobile phone, which is usually called the outer screen of a mobile phone. During the assembly process of a mobile phone, the outer screen of the mobile phone and the inner display screen of the mobile phone are an integrated structure, and only professionals can separate the two using professional tools. Therefore, although this application only mentions the welding of CG and metal fasteners, it does not exclude the welding of CG and the integrated structure of the inner display screen and metal fasteners, that is, the definition of the component CG in this application is not limited to CG itself, but can also cover all mobile phone displays.

[0037] The metal fastener mentioned in this application is a snap-on structure welded to the edge of the CG, which is generally in an "L" shape, with one end being a snap-on end connected to the middle frame of the mobile phone, and the other end being a welding end connected to the CG, and the angle between the snap-on end and the welding end is 90°.

[0038] The CG has a display surface facing the user and a back surface opposite to the display surface. In the present application, the welding end of the metal fastener is welded to the back surface of the CG.

[0039] refer to Figures 1 to 3 In one embodiment of the present application, a welding detection device is disclosed, comprising a conveying mechanism 1 carrying a fixture 11, the fixture 11 is used to load and fix the finished welding product to be detected, the fixture 11 has a clamping state and a release state, and the detection device is provided with a material transfer station 2, a material detection station 3 and a mechanical arm 4 for carrying the finished welding product;

[0040] Among them, the material transfer station 2 is provided with a clamp opening module 21 and a material taking module 22. The clamp opening module 21 is used to drive the clamp 11 to switch between the clamping state and the release state, and the material taking module 22 is used to remove the finished welding product from the clamp 11; the material inspection station 3 is provided with a visual inspection module 31, which is used to detect the welding condition of the finished welding product.

[0041] refer to Figure 4 and Figure 5 In some embodiments, the opening clamp module 21 includes a base 211, a lifting module 212, and an unlocking member 213. The base 211 is used to fix the lifting module 212. The unlocking member 213 is connected to the lifting module 212 and is driven by the lifting module 212 to rise and fall. The unlocking member 213 is located below the clamp 11 and is used to drive the clamp 11 to switch from a clamping state to a released state.

[0042] Among them, the clamping state of the clamp 11 specifically refers to: the clamp 11 locks the finished welding product at its upper end and keeps the finished welding product in a limited position, playing a role of clamping and fixing; the release state specifically refers to: the clamp 11 releases the clamping limit of the finished welding product, so that the finished welding product can be removed from the clamp 11 without interference.

[0043] Further, in some embodiments, reference may be made to Fig. 9 and Fig.10 The structure of the clamp 11 in the embodiment of the present invention is as follows: the upper end of the clamp 11 is used to clamp and fix the finished welding product, and the lower end of the clamp 11 is a driving member 111 for releasing the clamping state. The clamp opening module 21 is fixed to the lower part of the conveying mechanism 1 through the base 211, and a telescopic cylinder can be used as a lifting module 212 to drive the unlocking member 213 to rise, and drive the driving member at the lower end of the clamp 11 to switch the clamp 11 to the released state.

[0044] Furthermore, the unlocking member 213 follows the rise and fall of the lifting module 212 and has a trigger position at the upper limit of the stroke and a constraint position at the lower limit of the stroke. In the trigger position, the unlocking member 213 drives the clamp 11 to switch from the clamping state to the release state. In the constraint position, the unlocking member 213 is away from the clamp 11.

[0045] refer to Figure 6 to Figure 7 In some embodiments, the material picking module 22 includes a material picking suction cup 221 for adsorbing finished welding products, a flip frame 222 for driving the material picking suction cup to flip, and a fixed seat 223 for fixing the flip frame. The fixed seat 223 is located on one side of the conveying mechanism 1, and the flip frame 222 is located above the conveying mechanism 1. The material picking suction cup 221 is connected to the flip frame 222 and moves with the flip frame to form a first transmission position and a second transmission position.

[0046] Among them, Figure 6As shown, one axial end of the flip frame 222 is provided with a rotating cylinder, and the flip frame 222 can be flipped up and down by the rotating cylinder, and the material picking suction cup 221 is set on one side of the flip frame 222, and is flipped up and down 180° as the rotating cylinder rotates. The flipping position of the material picking suction cup 221 facing downward is defined as the first transmission position, and the flipping position of the material picking suction cup 221 facing upward is defined as the second transmission position.

[0047] When the picking suction cup 221 is located at the first transmission position, the picking suction cup 221 absorbs the finished welding product onto the fixture 11 ; when the picking suction cup 221 is located at the second transmission position, the picking suction cup 221 transmits the finished welding product to the robot arm 4 .

[0048] In order to prevent the flip frame 222 from directly flipping over after the material taking suction cup 221 completes the adsorption of the finished welding product, causing the metal fasteners on the finished welding product to collide and be damaged, refer to Figure 8 In some embodiments, the material taking module 22 also includes a linear module 224 that drives the flip frame 222 to move up and down along the fixed seat 223. The linear module 224 can drive the flip frame 222, the material suction cup 221 and the finished welding product to rise as a whole after the material suction cup 221 completes the adsorption of the finished welding product, so that the finished welding product is separated from the fixture 11 and then flipped by the flip frame 222 to protect the finished welding product.

[0049] And, reference Figure 8 The finished product is welded on the fixture 11 in the transport state with the CG of the finished product facing upward and the metal fastener facing downward. When the material inspection station is inspected, it is necessary to inspect the angle between the metal fastener and the CG, the number of weld points on the metal fastener, and the welding position of the metal fastener. Therefore, the metal fastener needs to be located above the CG, so the material taking module 22 also plays the role of flipping the welded product to facilitate inspection at the material inspection station.

[0050] For further reference, Figure 2 and Figure 3 A linear transmission module 32 is provided on the material inspection station 3 , and the linear transmission module 32 is used to transmit the finished welding product to the visual inspection module 21 .

[0051] The linear transmission module 32 includes a linear guide rail 321 for guiding, a sliding seat 322 slidably connected to the linear guide rail, and a positioning platform 323 rotatably connected to the sliding seat 322 .

[0052] The linear guide rail 321 cooperates with the sliding seat 322 to complete the transmission of the finished welding product on the material detection station 3. The upper end of the positioning platform 323 is provided with a movable pushing member and a fixing member, which can push and position the finished welding product.

[0053] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. When the technical features in different embodiments are embodied in the same figure, it can be regarded that the figure also discloses the combination examples of the various embodiments involved.

[0054] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. A welding inspection device, comprising a conveying mechanism carrying a fixture, wherein the fixture is used to load and fix the welded product to be inspected, and the fixture has a clamping state and a release state, characterized in that: The detection device is provided with a material transfer station, a material detection station and a mechanical arm for carrying the finished welding product; The material transfer station is provided with a clamp opening module and a material taking module, wherein the clamp opening module is used to drive the clamp to switch between a clamping state and a release state, and the material taking module is used to take the finished welding product from the clamp; The material inspection station is provided with a visual inspection module for inspecting the welding condition of the finished welding product.

2. A welding detection device according to claim 1, characterized in that: The opening clamp module includes a base, a lifting module, and an unlocking member. The base is used to fix the lifting module. The unlocking member is connected to the lifting module and is driven by the lifting module to rise and fall. The unlocking member is located below the clamp and is used to drive the clamp to switch from a clamping state to a releasing state.

3. A welding detection device according to claim 2, characterized in that: The unlocking member follows the lifting and lowering of the lifting module and has a trigger position located at the upper limit of the stroke and a constraint position located at the lower limit of the stroke. At the trigger position, the unlocking member drives the clamp to switch from a clamping state to a released state. At the constraint position, the unlocking member is away from the clamp.

4. A welding detection device according to claim 3, characterized in that: The material picking module includes a material picking suction cup for adsorbing the finished welding product, a flip frame for driving the material picking suction cup to flip, and a fixing seat for fixing the flip frame, wherein the fixing seat is located on one side of the conveying mechanism, and the flip frame is located above the conveying mechanism. The material picking suction cup is connected to the flip frame and moves with the flip frame to form a first transmission position and a second transmission position.

5. A welding detection device according to claim 4, characterized in that: The material taking module also includes a linear module which drives the turning frame to move up and down along the fixing seat.

6. A welding detection device according to claim 5, characterized in that: A linear transmission module is provided on the material inspection station, and the linear transmission module is used to transmit the finished welding product to the visual inspection module.

7. A welding detection device according to claim 6, characterized in that: The linear transmission module comprises a linear guide rail for guiding, a sliding seat slidably connected to the linear guide rail, and a positioning platform rotatably connected to the sliding seat.

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