Automatic mechanical electrode polishing device

Abstract

The automatic mechanical electrode polishing device comprises a polishing assembly and an electrode clamp, the polishing assembly comprises a workbench, a vertically-arranged connecting rod and a horizontally-arranged connecting arm, one end of the connecting rod is fixedly assembled on one side of the workbench, the connecting arm is installed on the top of the connecting rod, and the electrode clamp is installed on the workbench. A clamp fixing base is arranged on the bottom face of the end, away from the connecting rod, of the connecting arm, a motor is arranged on the top face of the end, an output shaft of the motor penetrates through the connecting arm, then is connected with the clamp fixing base and is used for driving the clamp fixing base to rotate, and the electrode clamp is detachably connected with the clamp fixing base above the electrode clamp. A grinding piece is arranged on the top face of the workbench, the clamp fixing base drives the motor clamp provided with the electrode to rotate, and the electrode in the rotating state makes contact with the grinding piece so that the electrode can be ground. The device is simple and convenient to operate, and the working efficiency can be improved; and in addition, the machining process can meet the consistency of the electrode electric grinder, and the judgment on the product quality is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding equipment, in particular to an automatic mechanical electrode grinding device. Background Art

[0002] In the current electrode processing, the electrode in the capping process is polished at least once or twice a day for each device. There are about 15 devices in the workshop, and each polishing takes about 10 minutes. Manual polishing is inefficient and the polishing accuracy is inconsistent, which can easily cause various appearance problems of the capping.

[0003] At present, commonly used working electrodes include glassy carbon electrodes, graphite electrodes, gold electrodes, silver electrodes, etc. In order to give full play to the advantages of the working electrodes and improve the activity of the electrodes, they must be pretreated before use.

[0004] At present, the commonly used working electrode pretreatment method is physical polishing: the staff holds the working electrode vertically with one hand, applies even force with the elbow of the arm, and moves the working electrode slowly on the sandpaper in a circular or "8" shape, polishing it to a mirror surface.

[0005] Although the above-mentioned pretreatment method of the working electrode is feasible, its disadvantages are also very obvious: manual polishing is not only time-consuming and labor-intensive, but also cannot guarantee the standardization of the operation, resulting in poor reproducibility of the electrode surface and the need to continuously test the surface drop, resulting in low efficiency.

[0006] In summary, if an automatic mechanical electrode grinding device can be designed, it can help solve the above problems. Summary of the invention

[0007] The utility model provides an automatic mechanical electrode grinding device, which is simple and convenient to operate and helps to improve work efficiency; and its processing process can meet the consistency of electrode electric grinding, which greatly improves the judgment of product quality.

[0008] The utility model adopts the following technical solutions.

[0009] An automatic mechanical electrode grinding device comprises a grinding component and an electrode fixture (1), wherein the grinding component comprises a workbench (2), a vertically arranged connecting rod (3) and a horizontally arranged connecting arm (4), wherein one end of the connecting rod is fixedly mounted on one side of the workbench (2), and the connecting arm is mounted on the top of the connecting rod. A fixture fixing seat (5) is arranged on the bottom surface of the connecting arm at one end away from the connecting rod, and a motor (8) is arranged on the top surface of the end. The output shaft of the motor passes through the connecting arm and is connected to the fixture fixing seat and is used to drive the fixture fixing seat to rotate. The electrode fixture is detachably connected to the fixture fixing seat above it. A grinding piece is arranged on the top surface of the workbench, and the fixture fixing seat drives the motor fixture equipped with an electrode (7) to rotate, so that the rotating electrode contacts the grinding piece so that the electrode is ground.

[0010] The clamp fixing seat is a sleeve-shaped structure, the motor output shaft is connected to the top of the clamp fixing seat, and the bottom of the clamp fixing seat is an open structure. The electrode clamp comprises a fastening portion (101) and a clamping portion (102), the clamping portion is fixedly arranged at the top of the fastening portion, and the clamping portion and the middle of the fastening portion are both provided with mounting holes (104) for the electrode to pass through. The clamping portion is slidably inserted into the clamp fixing seat 5, and a detachable connection structure is formed between the side wall of the clamping portion and the inner wall of the clamp fixing seat by a buckle (103).

[0011] Through holes are provided on both sides of the fastening portion, and the through holes extend through the mounting hole. Fastening bolts (105) are threadedly connected to the through holes, and the inner ends of the fastening bolts abut against the electrode surface.

[0012] The connecting rod is a lifting rod, and the connecting arm is connected to the telescopic end of the connecting rod.

[0013] The grinding piece includes sandpaper placed on the top surface of the workbench.

[0014] The utility model has the advantages of simple and convenient operation, which helps to improve work efficiency; and the processing process of the electrode of the utility model can meet the consistency of the electrode electric grinding, which greatly improves the judgment of product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0016] Attached Figure 1 This is a schematic diagram of the structure of an automatic mechanical electrode grinding device of the utility model;

[0017] Attached Figure 2 This is a front view of an automatic mechanical electrode grinding device of the utility model;

[0018] Attached Figure 3 This utility model Figure 2 A partial enlarged view of point A.

[0019] In the figure, electrode fixture-1, workbench-2, connecting rod-3, connecting arm-4, fixture fixing seat-5, grinding piece-6, electrode-7, motor-8, fastening part-101, clamping part-102, buckle-103, mounting hole-104, fastening bolt-105. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figure 1 and Figure 2 As shown, an automatic mechanical electrode grinding device includes a grinding component and an electrode fixture 1, the grinding component includes a workbench 2, a vertically arranged connecting rod 3 and a horizontally arranged connecting arm 4, one end of the connecting rod is fixedly assembled on one side of the workbench 2, the connecting arm is installed on the top of the connecting rod, and a fixture fixing seat 5 is arranged on the bottom surface of the connecting arm away from the end of the connecting rod, and a motor 8 is arranged on the top surface of the end, the output shaft of the motor passes through the connecting arm and is connected to the fixture fixing seat and is used to drive the fixture fixing seat to rotate, the electrode fixture is detachably connected to the fixture fixing seat above it, and a grinding piece is arranged on the top surface of the workbench, and the fixture fixing seat drives the motor fixture equipped with the electrode 7 to rotate, so that the rotating electrode contacts the grinding piece so that the electrode is ground.

[0022] like Figure 2 and Figure 3 As shown, the clamp fixing seat is a sleeve-shaped structure, the motor output shaft is connected to the top of the clamp fixing seat, and the bottom of the clamp fixing seat is an open structure. The electrode clamp includes a fastening portion 101 and a clamping portion 102. The clamping portion is fixedly arranged at the top of the fastening portion. The clamping portion and the middle of the fastening portion are both provided with mounting holes 104 for the electrode to pass through. The clamping portion is slidably inserted into the clamp fixing seat 5, and a detachable connection structure is formed between the side wall of the clamping portion and the inner wall of the clamp fixing seat by a buckle 103.

[0023] Through holes are provided on both sides of the fastening portion, and the through holes extend into the mounting hole. The through holes are threadedly connected with fastening bolts 105 , and the inner ends of the fastening bolts abut against the electrode surface.

[0024] like Figure 1 As shown, the connecting rod is a lifting rod, and the connecting arm is connected to the telescopic end of the connecting rod.

[0025] The grinding piece includes sandpaper placed on the top surface of the workbench.

[0026] Embodiment 1:

[0027] When in use, first remove the electrode fixture 1, insert the electrode 7 to be polished into the fixing hole, and make sure that the bottom of the electrode 7 extends out of the bottom surface of the fastening part 101, then screw in the fastening bolts 105 on both sides to clamp and fix the electrode 7, then insert the clamping part 102 of the electrode fixture 1 into the fixture fixing seat 5, and fix it with the buckle 103, then you can start the polishing work, lift and lower the connecting rod 3 to drive the electrode 7 to descend so that its bottom contacts the sandpaper, then start the motor 8, and drive the electrode 7 to rotate forward and reverse by the forward and reverse rotation of the motor 8 to complete the polishing action.

[0028] Embodiment 2:

[0029] This example is based on the automatic mechanical grinding device of Example 1

[0030] The tools used in this case include: electrode grinding fixture, automatic mechanical grinding device (fixture sleeve, motor, robotic arm), sandpaper, dust-free cloth, alcohol, cotton swab, pin gauge, height gauge, A4 paper;

[0031] The polishing steps in this example include:

[0032] 1. Wear gloves

[0033] 2. Put the electrode into the grinding fixture, fasten it with the buckle, and after tightening, observe the surface of the grinding tool and make sure the electrode is extended;

[0034] 3. Grind the electrode horizontally and reversely under the action of the motor and the robotic arm, and repeat 5 times;

[0035] 4. Use sandpaper to gently polish the inner hole wall of the polished electrode (roll the sandpaper into a cylindrical shape and polish 3 times). After the inner hole wall is polished, use a cotton swab dipped in alcohol to wipe the inner hole wall and surface;

[0036] The detection steps are as follows:

[0037] Use a "needle gauge" to measure the electrode aperture: A 3.60-3.65mm diameter needle gauge is available at the electrode grinding site. Use the needle gauge to insert into the electrode hole for measurement. Upper electrode: A 3.60-3.61mm diameter needle gauge can pass through to qualify the upper electrode, and a needle gauge with a diameter greater than 3.62mm can pass through to qualify the upper electrode. Lower electrode: A 3.63-3.65mm diameter needle gauge can pass through to qualify the lower electrode, and a needle gauge with a diameter greater than 3.65mm can pass through to qualify the lower electrode. Fill in the measured inner hole diameter value in the "Electrode Docking Flatness Test Value". Conditions for determining the inner hole value of the electrode: For example, a 3.61mm needle gauge can pass through, but a 3.62mm needle gauge cannot pass through, so the inner hole diameter is determined to be 3.61mm. Note: Unqualified electrodes are handed over to the project for scrapping;

[0038] Electrode flatness measurement: Place the polished electrode on the altimeter to measure the flatness, place the probe on the electrode plane, press the middle button on the altimeter display to zero, place the probe on the edge of the inner hole, measure once up, down, left and right, check the display value, if the measurement difference of the 8 points is less than 10, the electrode is polished to standard and can continue to be used; if the test value difference of the 8 points is greater than 10, the electrode needs to be re-polished or replaced.

[0039] Electrode length measurement: Use a height probe to measure the length of the electrode after polishing and wiping it clean. Adjust the tip of the probe to contact the surface of the platform, and then press the middle button on the altimeter display to adjust to zero. After zeroing, place the electrode on the platform, pull up the probe and place it anywhere on the electrode surface. The value displayed on the digital display is the length of the electrode. Finally, fill in the measured electrode length on A4 paper.

[0040] Electrode appearance inspection: Observe the polished electrode under a microscope. A qualified electrode has a smooth inner hole edge and a smooth surface. An electrode with burrs, depressions or other defects on the inner hole surface is an unqualified electrode and needs to be re-polished or scrapped and replaced.

[0041] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic mechanical electrode grinding device, characterized in that: The invention comprises a grinding assembly and an electrode fixture (1), wherein the grinding assembly comprises a workbench (2), a vertically arranged connecting rod (3) and a horizontally arranged connecting arm (4), wherein one end of the connecting rod is fixedly assembled on one side of the workbench (2), and the connecting arm is installed on the top of the connecting rod. A fixture fixing seat (5) is arranged on the bottom surface of the connecting arm at one end away from the connecting rod, and a motor (8) is arranged on the top surface of the end. The output shaft of the motor passes through the connecting arm and is connected to the fixture fixing seat and is used to drive the fixture fixing seat to rotate. The electrode fixture is detachably connected to the fixture fixing seat above it. A grinding piece is arranged on the top surface of the workbench, and the fixture fixing seat drives the motor fixture equipped with the electrode (7) to rotate, so that the rotating electrode contacts the grinding piece so that the electrode is ground.

2. The automatic mechanical electrode grinding device according to claim 1, characterized in that: The clamp fixing seat is a sleeve-shaped structure, the motor output shaft is connected to the top of the clamp fixing seat, and the bottom of the clamp fixing seat is an open structure. The electrode clamp comprises a fastening portion (101) and a clamping portion (102), the clamping portion is fixedly arranged at the top of the fastening portion, and the clamping portion and the middle of the fastening portion are both provided with mounting holes (104) for the electrode to pass through. The clamping portion is inserted into the clamp fixing seat (5) in a slidable manner, and a detachable connection structure is formed between the side wall of the clamping portion and the inner wall of the clamp fixing seat by a buckle (103).

3. An automatic mechanical electrode grinding device according to claim 2, characterized in that: Through holes are provided on both sides of the fastening portion, and the through holes extend through the mounting hole. Fastening bolts (105) are threadedly connected to the through holes, and the inner ends of the fastening bolts abut against the electrode surface.

4. The automatic mechanical electrode grinding device according to claim 1, characterized in that: The connecting rod is a lifting rod, and the connecting arm is connected to the telescopic end of the connecting rod.

5. The automatic mechanical electrode grinding device according to claim 1, characterized in that: The grinding piece includes sandpaper placed on the top surface of the workbench.

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