Flexible probe preparation device for localized electrochemical deposition

Abstract

The utility model discloses a flexible probe preparation device for localized electrochemical deposition, which relates to the technical field of micro-nano manufacturing, and comprises an L-shaped main body support frame, an upper fixed block with a conical through hole is arranged on one side of the L-shaped main body support frame, and a resistance heating wire is mounted below the conical through hole; the moving assembly is vertically and fixedly installed on the L-shaped main body supporting frame to clamp the pull-down plate, and the moving assembly and the pull-down plate are fixedly installed; the to-be-prepared plastic suction head sequentially penetrates through the conical through hole and the resistance heating wire, and a port of the to-be-prepared plastic suction head is detachably connected with the clamping pull-down plate; and the stepping motor is arranged on the L-shaped main body supporting frame, and a synchronous belt wheel I at the output end of the stepping motor is connected with the moving assembly. According to the flexible probe preparation device for localized electrochemical deposition, the problem that much inconvenience is brought to micro-metal preparation due to the fact that the tip end of a glass probe is extremely easy to damage in the experiment process is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to micro - nanometer manufacturing technical field, concretely for a kind of flexible probe preparation device for localized electrochemical deposition. BACKGROUND

[0002] With the increasing demand for micro-nano structures and in-depth exploration, techniques for manufacturing 3D micro-nano structures with controllable shape and quality and techniques for detecting the morphology of micro-nano scale objects have become increasingly important. Electrochemical deposition technology is a special processing method for preparing metal materials and manufacturing parts by controlling the electrochemical reaction conditions of micro-regions on the surface of an electrode to realize atomic-level layer-by-layer stacking. It has the advantages of wide applicable materials, low implementation temperature, flexible application form, easy shape and property control, high spatial resolution and precision, etc. It has great development potential, especially in the field of metal micro-nano additive manufacturing. Localized electrochemical deposition is a method of limiting the range of electrochemical deposition to realize additive manufacturing of microstructures. Based on the continuous evolution of electrode probes, localized electrochemical deposition techniques mainly include droplet-constrained electrochemical deposition (MCED), microfluidic atomic force microscope-constrained electrochemical deposition (FluidFM) and electrode-constrained localized electrochemical deposition (LECD).

[0003] Droplet-constrained electrochemical deposition (MCED) has great potential for development in the field of 3D printed metals at microscale in additive manufacturing (AM). It mainly uses electrochemical deposition technology to obtain metallic elements through the oxidation reaction of metal cations. The specific implementation method is to form a stable micro-liquid current bridge between the outlet of a pipette filled with metal ion solution and the anode substrate, deposit metal on the substrate, and obtain the desired metal shape by moving the pipette and depositing a layer of metal.

[0004] Microfluidic atomic force microscope-constrained electrochemical deposition (FluidFM) uses the principle of AFM probe position detection to construct a microfluidic channel inside the probe and set an electrolyte pool at the tail end. It continuously delivers metal cations needed for deposition to the probe tip through microfluidic control and deposits metal by moving the probe.

[0005] Electrode-constrained localized electrochemical deposition (LECD) uses the probe tip to induce electrochemical reaction by directing the local electric field. The electrode wire inserted in the probe serves as the anode, and the metal substrate serves as the cathode. The distribution of the local electric field and the size of the deposited material are mainly determined by the opening diameter of the probe tip. The pipettes used in MCED, FluidFM and LECD are currently glass probes. The needle tip is drawn into a cone shape by a probe drawing instrument. The inner diameter of the needle tip can be controlled by controlling the temperature to tens to hundreds of nanometers.

[0006] However, the current glass probe drawing equipment is purchased from abroad, which is extremely expensive, and in the process of use, the tip of the glass probe will be damaged once it touches anywhere, and needs to be replaced, and then the experiment is carried out again. Moreover, it is also mentioned in many documents that the tip of the glass probe is easily damaged during the experiment, which brings many inconveniences to the preparation of micro metals, so how to improve the reliability and stability of the pipette is a difficult problem to be solved. Practical new type content

[0007] One object of the present application is to solve at least the above problems and / or defects, and to provide at least the advantages to be explained later.

[0008] In order to achieve these objects and other advantages according to the present application, a flexible probe preparation device for localized electrochemical deposition is provided, comprising: an L-shaped main body support frame, further comprising:

[0009] The L-shaped main body support frame is provided with an upper fixed block with a tapered through hole, and a resistance heating wire is installed below the tapered through hole;

[0010] The moving assembly is fixedly installed on the vertical side of the L-shaped main body support frame;

[0011] The clamping lower pull plate is fixedly installed with the moving part of the moving assembly;

[0012] The plastic suction head to be prepared passes through the tapered through hole, the resistance heating wire in sequence, and the port is detachably connected with the clamping lower pull plate;

[0013] The stepping motor is arranged on the L-shaped main body support frame, and the synchronous pulley I of the output end is connected with the moving part of the moving assembly.

[0014] Preferably, the structure of the fixed part of the moving assembly comprises:

[0015] The guide rail is vertically fixedly installed on the vertical side of the L-shaped main body support frame;

[0016] The structure of the moving part of the moving assembly 5 comprises:

[0017] The sliding block is slidably installed on the guide rail, and the synchronous belt clamping mechanism is installed on the sliding block;

[0018] The support rod is fixedly installed on the L-shaped main body support frame and located above the guide rail, and the synchronous pulley II is rotatably arranged on the support rod;

[0019] The synchronous belt is connected with the synchronous pulley I at one end and connected with the synchronous pulley II at the other end, and the synchronous belt clamping mechanism is fixedly connected with the synchronous belt;

[0020] The clamping lower pull plate is fixedly installed on one side of the sliding block.

[0021] Preferably, the structure of the clamping lower pull plate comprises:

[0022] A triangular groove is formed in the side surface of the clamping lower pull plate, and the triangular groove and the conical through hole are located on the same vertical surface, and threaded holes are formed on both sides of the triangular groove;

[0023] Arc-shaped inner recessed clamping pieces are provided with through holes on both sides, and are bolted with the threaded holes through the through holes by screws.

[0024] Preferably, the resistance heating wire is a spiral structure of a nickel-chromium wire Cr20Ni80, with a wire diameter of 0.6 mm and a resistance of 3.85 ohms per meter.

[0025] The utility model at least has following beneficial effects:

[0026] In order to overcome the defect that the glass probe tip is easily damaged in the experiment process, the device uses a plastic pipette as a flexible probe, heats the plastic suction head by the resistance heating wire, melts the plastic, and further drives the clamping lower pull plate to move by the motor, so as to realize downward stretching of the heated and melted part, thereby obtaining the required flexible probe.

[0027] Other advantages, objects and features of the utility model will be embodied in part through the following description, and will be understood by those skilled in the art through research and practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a whole structure schematic view of the utility model;

[0029] Figure 2 It is a whole structure schematic view of the utility model;

[0030] Figure 3 It is a whole structure schematic view of the utility model; Figure 2 A enlarged structure schematic view;

[0031] Figure 4 It is a whole structure schematic view of the utility model; Figure 3 A plastic suction head structure schematic view;

[0032] Marked in the figure: 1, L-shaped main body support frame, 2, upper fixed block, 3, conical through hole, 4, resistance heating wire, 5, moving assembly, 51, guide rail, 52, sliding block, 53, synchronous belt clamping mechanism, 54, support rod, 55, synchronous pulley II, 56, synchronous belt, 6, clamping lower pull plate, 61, triangular groove, 62, arc-shaped inner recessed clamping piece, 63, screw, 7, plastic suction head, 8, stepping motor, 9, synchronous pulley I. DETAILED DESCRIPTION

[0033] The utility model makes further detailed description in combination with the drawings, so that the person skilled in the art can implement according to the description text.

[0034] The utility model is described in detail as follows in combination with the drawings:

[0035] Figures 1-4 A flexible probe preparation device for localized electrochemical deposition is shown, comprising: an L-shaped main body support frame 1, further comprising:

[0036] The L-shaped main body support frame 1 is provided with an upper fixing block 2 with a tapered through hole 3 on one side, and a resistance heating wire 4 is installed below the tapered through hole 3;

[0037] The moving assembly 5 is fixedly installed vertically on one vertical side of the L-shaped main body support frame 1;

[0038] The clamping lower pull plate 6 is fixedly installed with the moving part of the moving assembly 5;

[0039] The plastic suction head 7 to be prepared passes through the tapered through hole 3 and the resistance heating wire 4 in sequence, and the port is detachably connected with the clamping lower pull plate 6;

[0040] The stepper motor 8 is provided on the L-shaped main body support frame 1, and the synchronous pulley I 9 at the output end is connected with the moving part of the moving assembly 5.

[0041] Working principle:

[0042] Before operation, the small-radius front end of the plastic suction head 7 to be prepared passes through the tapered through hole 3 of the upper fixing block 2 and the resistance heating wire 4 in sequence, and the tapered through hole 3 will hold the large-radius tail end of the plastic suction head 7, at which time the clamping lower pull plate 6 is used to fix the front end of the plastic suction head 7, and the installation of the plastic suction head 7 is completed;

[0043] The operator first turns on the resistance heating wire 4 to heat for a certain time and then stops, and then starts the stepper motor 8 on the L-shaped main body support frame 1 through an external power supply, the stepper motor 8 drives the synchronous pulley I 9 at the output end to rotate, the synchronous pulley I 9 drives the moving assembly 5 to move, and the assembly movement drives the clamping lower pull plate 6 to move downward, at which time the middle position of the plastic suction head 7 heated and melted is pulled downward through the clamping lower pull mechanism, thereby achieving the purpose of drawing the flexible probe;

[0044] In actual use, the L-shaped main support frame 1 of the device is provided with a control module, the stepping motor 8 is signal connected with the data processing module of the control module through a line, the data processing module is electrically connected with the motor control button, and the operator controls the rotation of the motor by clicking the motor control button on the button display area. When the button is pressed, the motor rotates at a constant speed, and when the button is released, the motor stops rotating.

[0045] As above, the resistance heating wire 4 is signal connected with the data processing module of the control module through a line, the data processing module is electrically connected with the temperature control module (electric heating wire control button), and the operator controls whether the electric heating wire is heated by clicking the temperature control module on the button display area. When the button is pressed, the electric heating wire starts to heat, and when the button is released, the electric heating wire stops heating.

[0046] In actual use, the plastic suction head 7 of the device can select the existing plastic suction head of the pipette gun head, and the parameters are: 200ul gun head, caliber 5.5mm, length 50mm;

[0047] The final plastic suction head 7 heating area completes the result of 50-400 microns of wire drawing;

[0048] In actual use, the stepping motor 8 preferably selects a 42-step motor 8, the step angle is 1.8°, the step angle accuracy is ±0.09°, and other parameters are as follows:

[0049] Model Hold torque (N.m) Rated current (A) Resistance / phase (Ω) Inductance / phase (mH) Rotor inertia (g.cm2) Motor weight (kg) 42CM08 0.8 2.5 1.0 2.4 110 0.50

[0050] In summary, in order to overcome the defect that the glass probe tip is easily damaged in the experiment process, the device uses a plastic pipette as a flexible probe, heats the plastic suction head 7 by resistance heating wire 4, melts the plastic, and then moves the clamping lower plate 6 driven by the stepping motor to realize downward stretching of the heated and melted part, so as to obtain the required flexible probe.

[0051] As in the above scheme, the structure of the fixed part of the moving assembly 5 includes:

[0052] The guide rail 51 is vertically fixedly installed on the vertical side surface of the L-shaped main support frame 1;

[0053] The structure of the moving part of the moving assembly 5 includes:

[0054] The sliding block 52 is slidingly installed on the guide rail 51, and the synchronous belt clamping mechanism 53 is installed on the sliding block 52;

[0055] The support rod 54 is fixedly installed on the L-shaped main support frame 1 and located above the guide rail 51, and the synchronous belt pulley II 55 is rotatably arranged on the support rod 54;

[0056] A synchronous belt 56 is connected to the synchronous pulley I 9 at one end and to the synchronous pulley II 55 at the other end, and the synchronous belt clamping mechanism 53 is fixedly connected to the synchronous belt 56.

[0057] One side of the clamping lower pull plate 6 is fixedly installed with the sliding block 52.

[0058] Working principle:

[0059] When the resistance heating wire 4 completes heating, the operator starts the progress motor through the external power supply, the progress motor drives the synchronous pulley I 9 to rotate, the synchronous pulley I 9 cooperates with the synchronous pulley II 55 on the support rod 54 to realize the sliding of the synchronous belt 56; at this time, the sliding of the synchronous belt 56 is transmitted to the synchronous belt clamping mechanism 53, the synchronous belt clamping mechanism 53 is transmitted to the sliding block 52, the sliding block 52 moves vertically on the guide rail 51, and finally the sliding block 52 drives the clamping lower pull plate 6 to move vertically, and realizes the wire drawing operation on the heating area of the plastic suction head 7.

[0060] Among them, the sliding rail can make the sliding block 52 move up and down more stably and smoothly, and ensure that the wire drawing process will not be affected by the jamming of the movement, resulting in deviation.

[0061] As in the above scheme, the structure of the clamping lower pull plate 6 comprises:

[0062] A triangular groove 61 is formed in the side surface of the clamping lower pull plate 6, and the triangular groove 61 and the conical through hole 3 are located on the same vertical plane, and threaded holes are formed on both sides of the triangular groove 61;

[0063] An arc-shaped inner recessed clamping piece 62 is provided with through holes on both sides, and is bolted with the threaded holes through the through holes by screws 63.

[0064] Working principle:

[0065] Because the triangular groove 61 and the conical through hole 3 are located on the same vertical plane, when the plastic suction head 7 to be prepared passes out of the conical through hole 3, the front end will fit the inner wall of the triangular groove 61, and then the two screws 63 are bolted with the threaded holes through the through holes, and the arc-shaped inner wall of the arc-shaped inner recessed clamping piece 62 is tightly attached to the plastic suction head 7 by tightening the screws 63, and finally the plastic suction head 7 is fixed.

[0066] As in the above scheme, the resistance heating wire 4 is a spiral structure of nickel-chromium wire Cr20Ni80, with a wire diameter of 0.6 mm and a resistance of 3.85 ohms per meter.

[0067] Working principle:

[0068] The resistance heating wire 4 of the spiral structure can be attached to the surface of the plastic suction head 7, and uniform heating is ensured, and in actual use, the material of nickel-chromium wire Cr20Ni80 is preferably selected, which has high plasticity and can still maintain good mechanical properties at high temperature.

[0069] Although the embodiments of the present application have been disclosed as above, it is not limited to the application listed in the specification and the embodiments, and can be fully applied to various fields suitable for the present application. For those skilled in the art, other modifications can be easily realized, and therefore the present application is not limited to specific details and the figures shown and described herein.

Claims

1. A flexible probe preparation device for localized electrochemical deposition, comprising: The utility model provides a kind of L-shaped main body support frame, characterized in that, further comprising: The L-shaped main body support frame is provided with an upper fixing block with a tapered through hole on one side, and a resistance heating wire is installed below the tapered through hole; A moving assembly is vertically fixedly installed on the vertical side of the L-shaped main body support frame; A clamping lower pull plate is fixedly installed with the moving part of the moving assembly; A plastic suction head to be prepared passes through the tapered through hole and the resistance heating wire in sequence, and the port is detachably connected with the clamping lower pull plate; A stepper motor is provided on the L-shaped main body support frame, and the synchronous pulley I of the output end is connected with the moving part of the moving assembly.

2. The flexible probe preparation device for localized electrochemical deposition according to claim 1, wherein, The structure of the fixed part of the moving assembly comprises: A guide rail is vertically fixedly installed on the vertical side of the L-shaped main body support frame; The structure of the moving part of the moving assembly comprises: A sliding block is slidingly installed on the guide rail, and a synchronous belt clamping mechanism is installed on the sliding block; A support rod is fixedly installed on the L-shaped main body support frame and located above the guide rail, and a synchronous pulley II is rotatably provided on the support rod; A synchronous belt is connected with the synchronous pulley I at one end and connected with the synchronous pulley II at the other end, and the synchronous belt clamping mechanism is fixedly connected with the synchronous belt; The clamping lower pull plate is fixedly installed on one side of the sliding block.

3. The flexible probe preparation device for localized electrochemical deposition of claim 1, wherein, The structure of the clamping lower pull plate comprises: A triangular groove is opened on the side of the clamping lower pull plate, and the triangular groove is located on the same vertical plane with the tapered through hole, and threaded holes are opened on both sides of the triangular groove; Arc-shaped concave clamping pieces are provided with through holes on both sides, and are bolted with screws through the through holes and the threaded holes.

4. The flexible probe preparation device for localized electrochemical deposition of claim 1, wherein, The resistance heating wire is a spiral structure of nickel-chromium wire Cr20Ni80, with a wire diameter of 0.6 mm and a resistance of 3.85 ohms per meter.

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