Fine boring machining tool for inner cambered surface of anode tank of crude foil engine of lithium battery

Abstract

The invention discloses a fine boring machining tool for the inner cambered surface of an anode tank of a lithium battery crude foil engine. The fine boring machining tool comprises an auxiliary spindle, a tool rest, a center frame and a support. The tool rest is welded on the auxiliary spindle; the center frame is fixed on the support; the knife rest is integrally rhombic, is thick in the middle and thin at two ends and is symmetrically distributed; lightening holes are formed in the tool rest, tool boxes are arranged on the two sides of the tool rest, and boring tools can be installed in the tool boxes. The knife rest and the auxiliary spindle are welded into a whole and then quenched and tempered, the quenched and tempered knife rest is welded with a knife handle at one end of the auxiliary spindle, and the other end of the knife rest on a horizontal lathe serves as a sliding end which is supported by a support and a center frame. The solution that in the prior art, product machining can be completed only by purchasing a customized machine tool is eliminated, and the investment cost of fixed assets is saved; the machining precision and the machining efficiency of the fine boring tool are superior to those of a special customized machine tool.

Description

Technical Field

[0001] The invention belongs to the technical field of electrolytic copper foil, and in particular relates to a tool for fine boring of an inner arc surface of an anode tank of a lithium battery foil-making machine. Background Art

[0002] The lithium battery foil production machine is the core equipment for the production and anti-oxidation treatment of lithium battery copper foil. When electrolyzing copper foil, the anode tank of the lithium battery foil production machine is filled with electrolyte copper sulfate, and the cathode roller is installed in the anode tank. The anode tank is connected to the positive pole of the power supply, and the cathode roller is connected to the negative pole of the power supply. Under the action of the relevant supporting system, the copper ions obtain electrons and become copper atoms, which are deposited on the surface of the cathode roller to form copper foil. The copper foil is then peeled, passivated, washed, trimmed, and continuously rolled into a copper foil roll.

[0003] Among them, the anode tank is the core equipment of the lithium battery foil production machine, and its processing accuracy is crucial.

[0004] At present, the dimensional accuracy of cathode roller and anode tank of Φ2700mm lithium battery foil production machine is as follows:

[0005] 1) Φ2700mm×1380 specification cathode roller: roller surface straightness is required to be ≤0.05mm, roller surface total runout is required to be ≤0.05mm;

[0006] 2) Φ2700mm×1380 specification anode tank: inner arc radius: R1368±0.2mm; inner arc cylindricality: 0.4mm;

[0007] Inner arc surface roughness: Ra3.2μm; slot diagonal error: ≤1mm. Summary of the invention

[0008] In order to overcome the shortcomings of the prior art, the present invention provides a tool for fine boring of the arc surface in the anode tank of a lithium battery foil machine, including an auxiliary spindle, a tool holder, a center frame and a support; the tool holder is welded on the auxiliary spindle; the center frame is fixed on the support; the tool holder is in a rhombus shape as a whole, thick in the middle and thin at both ends, and symmetrically distributed; a weight-reducing hole is provided on the tool holder, and a tool box is provided on both sides of the tool holder to install a boring tool; the tool holder and the auxiliary spindle are welded as one body and then subjected to quenching and tempering treatment, after which the tool holder welds a tool handle at one end of the auxiliary spindle, and the other end of the tool holder is processed on a horizontal car as a sliding end, and the sliding end is supported by the support and the center frame. The present invention gets rid of the solution of the prior art that requires the purchase of customized machine tools to complete product processing, saving fixed asset investment costs; and makes the processing accuracy and processing efficiency of the fine boring tool better than that of special customized special machine tools.

[0009] The technical solution adopted by the present invention to solve the technical problem is as follows:

[0010] A tool for fine boring of the inner arc surface of the anode tank of a lithium battery foil production machine, comprising an auxiliary spindle, a tool holder, a center frame and a support;

[0011] The tool holder is welded on the auxiliary spindle; the center frame is fixed on the support;

[0012] The tool holder is in a rhombus shape as a whole, thick in the middle and thin at both ends, and symmetrically distributed;

[0013] The tool holder is provided with a weight-reducing hole, and tool boxes are provided on both sides of the tool holder to install a boring tool;

[0014] The tool holder is welded to the auxiliary spindle as a whole and then subjected to tempering treatment. After tempering, a tool handle is welded to one end of the auxiliary spindle of the tool holder, and the other end of the tool holder is processed on a horizontal lathe as a sliding end, and the sliding end is supported by a support and a center frame.

[0015] Preferably, the auxiliary spindle is made of a bar with a diameter of Φ200, made of 45 steel, and has a total length of L=4000 mm.

[0016] Preferably, the tool holder is made of 45 steel.

[0017] Preferably, the tool holder plate has a thickness of 80 mm.

[0018] Preferably, the hardness of the tool holder and the auxiliary spindle after quenching and tempering is HRC28-32;

[0019] Preferably, the knife handle is a BT60 knife handle.

[0020] Preferably, the outer circle of the sliding end is Φ195 mm, the length L=1800 mm, the coaxiality is 0.02 mm, the straightness is 0.02 mm, and the roughness Ra is 0.8 μm.

[0021] The beneficial effects of the present invention are as follows:

[0022] 1) The present invention gets rid of the solution of the prior art that requires the purchase of customized machine tools to complete product processing, saving fixed asset investment costs;

[0023] 2) The operation accuracy and operation efficiency of the boring machine spindle of the present invention are better than the motor screw transmission mode of the customized machine tool, so that the processing accuracy and processing efficiency of the fine boring tool are better than those of the specially customized special machine tool;

[0024] 3) The boring machine equipment of the present invention is rich in resources and can meet the needs of large-scale processing of anode tanks of lithium battery foil production machines. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the tooling of the present invention;

[0026] Figure 2 It is a schematic diagram of the use of the tooling of the present invention;

[0027] Figure 3It is the outline drawing of the tool holder of the present invention.

[0028] Description of the drawings: 1- auxiliary spindle, 2- tool holder, 3- center frame, 4- support, 5- boring machine slide, 6- anode tank, 7- anode tank mounting base. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0030] The present invention solves the problem that the inner arc surface fine boring processing of the anode slot of the lithium battery foil production machine relies on specially customized special machine tools, and cannot fully utilize ordinary machine tools for mass processing. Based on ordinary floor-standing boring machines, the function of fine boring processing of the inner arc surface of the anode slot is realized by designing universal processing tooling. The processing accuracy and processing efficiency of this tooling are better than those of specially customized special machine tools, and the tooling cost is much lower than that of customized machine tools, and the adaptability is higher.

[0031] To achieve the above content, the present invention provides the following solutions:

[0032] Based on the operation of TK6920 CNC floor-standing boring machine, we designed the fine boring tooling, which mainly consists of four parts: auxiliary spindle, tool holder, center frame and support.

[0033] The auxiliary spindle is made of Φ200 diameter bar material, made of 45 steel, with a total length of L = 4000mm. A tool holder is welded on the auxiliary spindle, and the tool holder is also made of 45 steel. The tool holder is diamond-shaped as a whole, thick in the middle and thin at both ends, and is symmetrically distributed to ensure stable rotation.

[0034] The tool holder is provided with weight-reducing holes, and tool boxes are provided on both sides of the tool holder for installing boring tools. The tool holder plate is 80mm thick, and is quenched and tempered after being welded to the auxiliary spindle. The hardness is HRC28-32. After quenching and tempering, a BT60 tool handle is welded on one end of the auxiliary spindle, and the other end is processed on the horizontal lathe with an outer diameter of Φ195mm and a length of L=1800mm. As the sliding end, the coaxiality is required to be 0.02mm, the straightness is 0.02mm, and the roughness is Ra0.8μm. The sliding end is supported by the support and the center frame.

[0035] The key technical points of the present invention are as follows:

[0036] 1) The design is based on the fine boring tooling of ordinary boring machines to realize the functions of arc surface rotation and feed fine boring processing in the anode tank, replacing special customized machine tools with single functions;

[0037] 2) The spindle and tool holder design strength and structure of the fine boring tooling have the extended processing performance of the machine tool, meeting the requirements of large diameter and long distance fine boring processing of the arc surface in the anode tank.

[0038] Example:

[0039] Combination Figures 1 to 3The steps of using the tooling of the present invention are as follows:

[0040] 1) First place the anode tank to be fine-bored on the rotary table of TK6920, and make sure the overflow surface of the anode tank is level, and press the pressure plate tightly;

[0041] 2) Connect the BT60 taper shank at one end of the auxiliary spindle to the machine tool spindle interface. The auxiliary spindle passes through the U-shaped notch of the anode tank side plate assembly, and the other end of the auxiliary spindle is installed on the center frame on the support at Φ195. Use a level ruler to measure the auxiliary spindle level within 0.02mm, adjust the position of the workbench and the machine tool slide, and use the inner arc surface of the anode mother plate as a reference to align the two sides of the anode mother plate axially. The roundness of each side at 0°, 90°, and 180° must be within 0.5mm before the boring tool can be assembled for processing;

[0042] 3) After the boring tool is assembled, scrape a 20mm wide ring belt along the axial direction on the tank body, and measure the diameter with a micrometer rod to determine the rotation diameter of the boring tool. When working, first use the machine tool slide for axial feed, and then use the machine tool spindle for feed when the distance is not enough, and use the machine tool spindle for axial feed as little as possible. During boring processing, the auxiliary spindle performs rotational motion while performing axial feed to achieve fine boring processing of the anode tank.

Claims

1. A tool for fine boring of the inner arc surface of the anode tank of a lithium battery foil production machine, characterized in that: Includes auxiliary spindle, tool holder, center rest and support; The tool holder is welded on the auxiliary spindle; the center frame is fixed on the support; The tool holder is in a rhombus shape as a whole, thick in the middle and thin at both ends, and symmetrically distributed; The tool holder is provided with a weight-reducing hole, and tool boxes are provided on both sides of the tool holder to install a boring tool; The tool holder is welded to the auxiliary spindle as a whole and then subjected to tempering treatment. After tempering, a tool handle is welded to one end of the auxiliary spindle of the tool holder, and the other end of the tool holder is processed on a horizontal lathe as a sliding end, and the sliding end is supported by a support and a center frame.

2. The tooling for fine boring of the inner arc surface of the anode tank of a lithium battery foil production machine according to claim 1 is characterized in that: The auxiliary spindle is made of a bar with a diameter of Φ200, made of 45 steel, and has a total length of L=4000mm.

3. The tooling for fine boring of the inner arc surface of the anode tank of a lithium battery foil production machine according to claim 1 is characterized in that: The tool holder is made of 45 steel.

4. The tooling for fine boring of the inner arc surface of the anode tank of a lithium battery foil production machine according to claim 1 is characterized in that: The tool holder plate has a thickness of 80 mm.

5. The tooling for fine boring of the inner arc surface of the anode tank of a lithium battery foil production machine according to claim 1 is characterized in that: The hardness of the tool holder and the auxiliary spindle after tempering treatment is HRC28-32.

6. The tooling for fine boring of the inner arc surface of the anode tank of a lithium battery foil production machine according to claim 1 is characterized in that: The knife handle is a BT60 knife handle.

7. The tooling for fine boring of the inner arc surface of the anode tank of a lithium battery foil production machine according to claim 1 is characterized in that: The outer circle of the sliding end is Φ195mm, the length L=1800mm, the coaxiality is 0.02mm, the straightness is 0.02mm, and the roughness Ra is 0.8μm.

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