Sucker tool for machining graphite nozzle workpiece

Abstract

The utility model discloses a suction cup tool for processing a graphite nozzle workpiece, which is characterized by comprising a tool base, a suction cup tool body, a clamping device, a positioning device and a clamping device, and is characterized in that the suction cup tool body is arranged on the periphery of the mounting surface of the tool base; the interior of the suction cup tool is installed on the installation face of the tool base through a fastener. The suction cup tool is a machining box body, and a plurality of air suction holes for machining are formed in the machining plane of the upper portion of the machining box body. A first positioning pin and a second positioning pin are respectively arranged at the head end and the tail end of the air suction hole for processing; the first end of the graphite nozzle workpiece to be machined is matched with the positioning hole for limiting through the first positioning pin; the second end of the graphite nozzle workpiece to be machined is matched with the positioning hole for limiting through a second positioning pin; the first positioning pin is arranged in a counter bore of the first pin countersunk head; and the second positioning pin is arranged in a counter bore of the second pin countersunk head. Matching errors caused by machine tool tolerance in the length direction are reduced, so that machining precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of graphite nozzle workpiece manufacturing, specifically to a suction cup fixture for processing graphite nozzle workpieces. Background Technology

[0002] In lithium-ion battery production, graphite nozzles serve as impregnation molds for bipolar plates, requiring precise sealing of pores to prevent electrolyte leakage. Insufficient machining precision, or nozzle dimensions, shape, or surface roughness that do not meet requirements, can lead to inadequate sealing.

[0003] Even minor deviations or defects in the sealing areas of the nozzle can cause electrolyte to leak out, affecting battery performance and safety.

[0004] High-precision machining ensures the fit between the nozzle and the bipolar plate, making the sealing effect more reliable, thereby improving the quality and stability of the battery.

[0005] Precise machining accuracy helps achieve uniform impregnation of the impregnating agent. When the nozzle's orifice diameter, flow channel, and other dimensional accuracy are high, the impregnating agent can be uniformly injected into the pores of the bipolar plate under pressure. This avoids differences in internal battery performance caused by uneven impregnation, such as inconsistent local ion conductivity. Utility Model Content

[0006] To overcome the aforementioned shortcomings of the prior art, the purpose of this utility model is to provide a suction cup fixture for machining graphite nozzle workpieces. Machining accuracy is improved by reducing the fitting error caused by machine tool tolerances in the length direction.

[0007] To achieve the objective of this utility model, the technical solution adopted is as follows:

[0008] A suction cup fixture for machining graphite nozzle workpieces includes:

[0009] A tooling base, wherein a suction cup tooling is provided on the outer periphery of the mounting surface of the tooling base;

[0010] The suction cup fixture is installed inside the fixture base by fasteners.

[0011] The suction cup fixture is a processing box, and a number of suction holes for processing are provided on the upper processing plane of the processing box.

[0012] A first positioning pin and a second positioning pin are respectively provided at the beginning and end of the air suction hole for processing.

[0013] The first locating pin is used to limit the first end of the graphite nozzle workpiece to be processed by matching the locating hole.

[0014] The second positioning pin is used to limit the second end of the graphite nozzle workpiece to be processed by engaging the positioning hole.

[0015] The first locating pin is disposed in the countersunk hole of the first pin countersunk head;

[0016] The second locating pin is disposed in the countersunk hole of the second pin head.

[0017] In a preferred embodiment of the present invention, a first side air hole is provided on the first processing side of the processing box, and a second side air hole and an air valve interface connected to an external air inlet valve are provided on the second processing side of the processing box.

[0018] In a preferred embodiment of the present invention, a first through-hole is provided on the third processing side of the processing box, and a second through-hole is provided on the fourth processing side of the processing box.

[0019] In a preferred embodiment of this utility model, the head of the first positioning pin is a semi-spherical surface.

[0020] In a preferred embodiment of this utility model, the head of the second positioning pin is a semi-spherical surface.

[0021] In a preferred embodiment of this utility model, the tooling base is provided with a support foot at its lower part.

[0022] The beneficial effects of this utility model are as follows:

[0023] This utility model discloses a suction cup fixture for machining graphite nozzle workpieces, which can shorten the workpiece clamping time and improve machining accuracy by reducing the fit error caused by machine tool tolerance in the length direction. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .

[0025] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0026] Figure 3 for Figure 2 A magnified view of a portion of the image. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit its scope. Furthermore, in the following descriptions, well-known structures and technologies have been omitted to avoid unnecessary confusion regarding the concept of this utility model.

[0028] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] like Figure 1-3 The illustrated suction cup fixture for machining graphite nozzle workpieces includes a fixture base 100, and a suction cup fixture 200 is provided on the outer periphery of the mounting surface 110 of the fixture base 100.

[0030] The suction cup fixture 200 and the fixture base 100 provide a positioning accuracy of ±0.002mm through fasteners such as screws and planar contact.

[0031] The suction cup fixture 200 is installed on the mounting surface 110 of the fixture base 100 by fasteners. The fixture base 100 must be aligned with the suction cup fixture 200 and locked to ensure the stability of the workpiece during processing.

[0032] To further enhance the support stability of the tooling base 100, a support foot 120 is provided at the lower part of the tooling base 100.

[0033] The suction cup fixture 200 is a processing box. Several processing suction holes 211 are provided on the upper processing plane 210 of the processing box. A first positioning pin 221 and a second positioning pin 222 are respectively provided at the first and last ends of the processing suction holes 211.

[0034] The first positioning pin 221 is used to limit the first end 11 of the graphite nozzle workpiece 10 to be processed, which is matched with the positioning hole. The second positioning pin 222 is used to limit the outer side 12 of the second end of the graphite nozzle workpiece 10 to be processed, which is matched with the positioning hole.

[0035] The first positioning pin 221 is disposed in the countersunk hole of the first pin countersunk head 212, and the second positioning pin 222 is disposed in the countersunk hole of the second pin countersunk head 213.

[0036] In order to avoid scratching the tooling during the positioning process, the head of the first positioning pin 221 is a semi-spherical surface 221a, and the head of the second positioning pin 222 is a semi-spherical surface 222a.

[0037] A first side air hole 201a is provided on the first processing side 201 of the processing box 200, and a second side air hole 202a and an air valve interface 202b connected to an external air inlet valve are provided on the second processing side 202 of the processing box 200.

[0038] A first through vent 203a is provided on the third processing side 203 of the processing box 200, and a second through vent (not shown in the figure) is provided on the fourth processing side 204 of the processing box 200.

[0039] This air hole arrangement is designed to draw air into the air valve interface 202b to firmly grip the suction cup fixture 200, ensuring workpiece stability during processing.

[0040] Because of the above structure, the working principle of this utility model is as follows:

[0041] Install the first positioning pin 221 and the second positioning pin 222 on the suction cup fixture 200.

[0042] After installation, the upper machined surface 210 is precision milled to ensure a flatness of 0.006.

[0043] The first positioning pin 221 is used to limit the first end 11 of the graphite nozzle workpiece 10 to be processed, which is matched with the positioning hole 111, and the second positioning pin 222 is used to limit the second end 12 of the graphite nozzle workpiece 10 to be processed, which is matched with the positioning hole 121.

[0044] After the limit is completed, open the air valve to clamp the suction cup fixture 200 and the graphite nozzle workpiece 10 to be processed, ensuring the stability of the workpiece during the processing.

[0045] The above shows and describes the basic principles, main features, and advantages of this utility model.

[0046] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope. All such changes and modifications fall within the scope of this utility model as defined by the appended claims and their equivalents.

Claims

1. A suction cup fixture for machining graphite nozzle workpieces, characterized in that, include: A tooling base, wherein a suction cup tooling is provided on the outer periphery of the mounting surface of the tooling base; The suction cup fixture is installed inside the fixture base by fasteners. The suction cup fixture is a processing box, and a number of suction holes for processing are provided on the upper processing plane of the processing box. A first positioning pin and a second positioning pin are respectively provided at the beginning and end of the air suction hole for processing. The first locating pin is used to limit the first end of the graphite nozzle workpiece to be processed by matching the locating hole. The second positioning pin is used to limit the second end of the graphite nozzle workpiece to be processed by engaging the positioning hole. The first locating pin is disposed in the countersunk hole of the first pin countersunk head; The second locating pin is disposed in the countersunk hole of the second pin head.

2. The suction cup fixture for machining graphite nozzle workpieces as described in claim 1, characterized in that, A first side air hole is provided on the first processing side of the processing box, and a second side air hole and an air valve interface connected to an external air inlet valve are provided on the second processing side of the processing box.

3. The suction cup fixture for machining graphite nozzle workpieces as described in claim 1, characterized in that, A first through-hole is provided on the third processing side of the processing box, and a second through-hole is provided on the fourth processing side of the processing box.

4. The suction cup fixture for machining graphite nozzle workpieces as described in claim 1, characterized in that, The head of the first locating pin is a semi-spherical surface.

5. The suction cup fixture for machining graphite nozzle workpieces as described in claim 1, characterized in that, The head of the second locating pin is a semi-spherical surface.

6. The suction cup fixture for machining graphite nozzle workpieces as described in claim 1, characterized in that, The tooling base is provided with support feet at the bottom.

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