Gasket machining method, gasket machining device and gasket

Abstract

The invention relates to the technical field of gasket machining, in particular to a gasket machining method, a gasket machining device and a gasket. The method comprises the following steps: firstly, measuring the gap size at the target mounting position of the gasket, then determining the preset thickness and the layer number of unit gaskets of the gasket to be processed according to the maximum value of the gap size along the thickness direction of the gasket, acquiring the processing parameters of each layer of unit gasket through a control module, and laminating and mutually bonding the unit gaskets with the preset thickness, the material is simple and can meet the processing of different gaskets; the step-shaped gaskets are machined layer by layer so as to fit non-straight gaps, and the cutting efficiency is improved. A to-be-machined gasket is placed on the machining platform, the cutting module moves in the vertical direction with the integral multiple of the preset thickness as the moving unit, the influence of interlayer force on gasket machining is reduced, the cutting module is in communication connection with the control module, all layers of unit gaskets of the to-be-machined gasket are received and cut according to machining parameters, then redundant parts are peeled off, and the needed gasket is obtained. The processing procedure is simple and low in difficulty, and the gasket quality is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of gasket processing, and in particular to a gasket processing method, a gasket processing device and a gasket. Background Art

[0002] Aircraft structures are complex and have a large number of parts. No matter what assembly process, reference system, and tolerance allocation scheme is used, it is inevitable that gaps will appear at the mating surfaces of some parts. When gaps appear at the mating surfaces of parts, the main methods for aircraft assembly coordination include adding shims, adding allowances to metal parts, etc. The added shims are generally non-structural shims and are used as needed according to the actual assembly situation.

[0003] During the assembly process of aircraft, there is a large demand for the manufacture of gaskets, and the thickness of these gaskets is usually less than 1 mm. The commonly used method for manufacturing gaskets is to use peelable gaskets. The traditional method of making peelable gaskets is usually handmade, and the most common method at the assembly site is hand tearing. However, it is difficult to apply to the demand for gaskets with variable thickness or curved shapes, because manual operation has low precision, slow speed, and high work intensity.

[0004] In the prior art, for the manufacture of gaskets for non-straight gaps, it is proposed to use multiple peelable gaskets of different thicknesses bonded to a base to form a gasket with multiple steps to achieve fitting of the curved gap. However, it is necessary to prepare multiple gaskets of different thicknesses; and according to the outer dimensions of the gap, the required gasket shape must be milled and bonded multiple times, and the processing process is lengthy; due to the interlayer force of the peelable gasket, the use of milling processing not only easily causes the peelable gasket to be delaminated, but also the milling of the outer shape is very difficult. Summary of the invention

[0005] The object of the present invention is to provide a gasket processing method, a gasket processing device and a gasket, which have simple procedures, low processing difficulty, and improved processing efficiency and effect.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] In a first aspect, the present invention provides a gasket processing method, wherein the gasket is used to be installed at an assembly gap, the gasket to be processed comprises a plurality of unit gaskets stacked and bonded to each other, and the gasket is obtained by processing the gasket to be processed, and the gasket processing method comprises:

[0008] Step 1: Measure the target installation position of the gasket to obtain the size of the assembly gap;

[0009] Step 2: determining the preset thickness and number of layers of the unit gasket (10) of the gasket (1) to be processed according to the maximum value of the size of the assembly gap along the gasket thickness direction; and determining the processing parameters of each layer of the unit gasket (10);

[0010] Step 3: Cut the unit gaskets of each layer of the gasket to be processed according to the processing parameters and peel off the excess parts after cutting.

[0011] As a preferred technical solution of the gasket processing method, the processing parameters include the number of layers of the unit gaskets to be cut and the cutting coordinates of each layer of the unit gaskets to be cut.

[0012] As a preferred technical solution for the gasket processing method, step 3 includes: cutting each layer of the unit gasket upward or downward in the vertical direction at an integer multiple of the preset thickness, and then peeling off the excess parts after completing the cutting of each layer of the unit gasket.

[0013] As a preferred technical solution for the gasket processing method, step 3 includes: cutting downward in sequence along the vertical direction with the preset thickness, and peeling off the excess part of each layer of the unit gasket after cutting; and continuing to cut the next layer of the unit gasket in a cycle to complete the cutting and peeling of each layer of the unit gasket.

[0014] As a preferred technical solution for the gasket processing method, the excess part after the cutting is peeled off by mechanical peeling or manual peeling.

[0015] In a second aspect, the present invention provides a gasket processing device for implementing the gasket processing method as described in any of the above schemes, comprising:

[0016] A processing platform, used for placing the gasket to be processed;

[0017] A control module, used for obtaining processing parameters of the unit gaskets of each layer;

[0018] A cutting module is arranged above the processing platform and is communicated with the control module for cutting the unit gasket according to the processing parameters. The cutting module can translate in a first direction and a second direction parallel to the processing platform and perpendicular to each other, and can move in a vertical direction with an integer multiple of the preset thickness as a moving unit.

[0019] As a preferred technical solution for the gasket processing device, the control module includes a measuring conversion component, which is communicatively connected to the cutting module. The measuring conversion component is used to measure the target installation position of the gasket, obtain the size of the assembly gap, and obtain the processing parameters of the unit gasket.

[0020] As a preferred technical solution for the gasket processing device, the cutting module is configured to be able to rotate around the vertical direction.

[0021] As a preferred technical solution of the gasket processing device, the gasket processing device also includes a pad, and the pad is placed between the gasket to be processed and the processing platform.

[0022] In a third aspect, the present invention provides a gasket manufactured using the gasket processing method described in any of the above schemes.

[0023] Beneficial effects of the present invention:

[0024] The gasket processing method, gasket processing device and gasket provided by the present invention are used to be installed at the assembly gap. The gasket to be processed includes a plurality of unit gaskets stacked and bonded to each other. The gasket to be processed is obtained by processing the gasket. In the first aspect, the gasket processing method first measures the assembly gap size at the target installation location of the gasket, and then determines the preset thickness and number of layers of the unit gasket of the gasket to be processed by the maximum value of the assembly gap size along the thickness direction of the gasket, so as to obtain the processing parameters of each layer of the unit gasket of the required gasket, and processes the step-shaped gaskets by layer to fit the non-straight gap, and improve the efficiency of subsequent cutting processing. After cutting each layer of the unit gasket of the gasket to be processed according to the obtained processing parameters and peeling off the excess parts after cutting, the required gasket is obtained. The processing procedure is simple and the processing difficulty is small, which effectively improves the processing efficiency and effect. In the second aspect, the gasket processing device includes a control module, a processing platform and a cutting module. The gasket to be processed includes a plurality of unit gaskets stacked and bonded to each other. The material is simple, which is convenient for making the gasket to be processed and can meet the preparation and processing of different required gaskets. The gasket to be processed is placed on the processing platform, and the cutting module is set above the processing platform. It can translate in the first direction and the second direction parallel to the processing platform and perpendicular to each other, and move in the vertical direction with an integer multiple of the preset thickness as the moving unit, which can reduce the influence of the interlayer force on the gasket processing. By using the control module to obtain the processing parameters of the unit gaskets of each layer of the required gasket, and the cutting module is communicated with the control module, the cutting module can receive the processing parameters transmitted by the control module and cut the unit gasket according to the processing parameters and then peel off the excess part. On the third aspect, the gasket processed by this gasket processing device and gasket processing method is not easy to be delaminated, and the quality and precision are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a flow chart of a gasket processing method provided by a specific embodiment of the present invention;

[0026] Figure 2 It is a partial working schematic diagram of the gasket processing device provided in a specific embodiment of the present invention.

[0027] In the figure:

[0028] 1. Gasket to be processed; 10. Unit gasket; 11. Excess part;

[0029] 2. Cutting module; 3. Pad; 4. Processing platform. DETAILED DESCRIPTION

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0031] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0034] In a first aspect, the present invention discloses a gasket processing method for manufacturing a gasket for a non-straight gap. The gasket is used to be installed at an assembly gap. The gasket to be processed includes a plurality of unit gaskets stacked and bonded to each other. The gasket is obtained by processing the gasket to be processed, such as Figure 1 As shown in the flowchart, the gasket processing method includes the following steps:

[0035] Step 1: Measure the target installation location of the gasket to obtain the size of the assembly gap;

[0036] Step 2: Determine the preset thickness and number of layers of the unit gasket 10 of the gasket 1 to be processed according to the maximum value of the size of the assembly gap along the gasket thickness direction; and determine the processing parameters of each layer of the unit gasket 10;

[0037] Step 3: Cut each layer of the unit gasket 10 of the gasket 1 to be processed according to the processing parameters and peel off the excess part 11 after cutting.

[0038] First, by measuring the target installation location of the gasket, the size of the assembly gap is obtained, and the shape and size of the assembly gap are obtained; then the preset thickness and number of layers of the unit gasket 10 constituting the gasket 1 to be processed are determined by the maximum value of the assembly gap size along the gasket thickness direction, and the preset thickness of the unit gasket 10 is set according to the accuracy of the gasket required at the target installation location. The thickness of the gasket 1 to be processed obtained by multiplying the preset thickness and the number of layers is exactly consistent with the maximum value of the assembly gap size along the gasket thickness direction, which is the best solution. At this time, no additional milling of the vertical dimension is required; and based on this, the processing parameters of each layer of unit gasket 10 to obtain the required gasket are obtained, and the step-shaped gaskets are processed layer by layer to fit the non-straight gap, and the depth of each vertical cutting is an integer multiple of the preset thickness, and the efficiency of subsequent cutting processing is improved. After cutting each layer of unit gaskets 10 of the gasket 1 to be processed according to the obtained processing parameters, it is more convenient to peel off the excess part 11 after cutting by layer, and the required gasket can be obtained, effectively avoiding the delamination or damage of the gasket due to irregular force when peeling off the excess part 11. The gasket processing method is simple in processing steps and reduces processing difficulty, which effectively improves processing efficiency. In actual production, a large number of unit gaskets 10 are generally prepared in advance, and their actual thickness is much smaller than the actual size of the gap. The preset thickness of the unit gasket 10 is several times its actual thickness.

[0039] Further, according to the data processing of the assembly gap size, the digital model of the gasket for the non-straight gap is converted into a multi-step surface model, and the appropriate processing parameters are calculated, including the number of layers of unit gaskets 10 to be cut and the corresponding coordinates to be cut of each layer of unit gaskets 10, and the cutting path is automatically planned. It can be understood that the coordinates to be cut are the coordinates of each point on the edge of each layer of unit gaskets 10 to be cut in the horizontal plane.

[0040] For example, compared with manual work, in this embodiment, the precision and efficiency can be greatly improved by using CNC machine tools for processing. The excess part 11 after cutting can be peeled off manually, or more preferably, mechanically.

[0041] Specifically, step 3 can be implemented as follows: cutting each layer of unit gasket 10 of the gasket 1 to be processed upward or downward in the vertical direction at an integer multiple of the preset thickness of the unit gasket 10, waiting until all the cutting of each layer of unit gasket 10 is completed, and finally peeling off the excess parts 11 after cutting at one time; it is especially suitable for when the overall thickness of the required gasket is not large and the thickness of the gasket 1 to be processed is less than the blade length of the cutting tool. This method is used to process the gasket, the process is simpler and more convenient, and the processing efficiency is further improved.

[0042] Exemplarily, the cutting tool has an initial position in the vertical direction, which is higher than the upper surface of the unit gasket 10 of the uppermost layer of the gasket 1 to be processed. When cutting upward in the vertical direction, the cutting tool first takes a certain point of the coordinate to be cut of the lowest unit gasket 10 as the starting point, and cuts with the product of the preset thickness and the layer sequence number of the layer as the cutting depth, and the layer sequence number is determined in sequence according to the layer sequence number of the uppermost unit gasket 10 as the first layer and the layer sequence number of the second upper unit gasket 10 as the second layer; the cutting moves in sequence along the coordinate to be cut on the horizontal plane, and after cutting the lowest unit gasket 10, the cutting tool returns to the initial position, moves to the coordinate to be cut of the second lower layer, and then descends to the cutting depth of the second lower layer, and then The cutting is performed sequentially along the horizontal plane until the cutting of the unit gasket 10 of this layer is completed; or, after the unit gasket 10 of the bottom layer is completed, the cutting tool may not be restored to the initial position, but only moved vertically upward by a preset thickness, and then moved horizontally to the coordinates to be cut of the penultimate layer of unit gasket 10, the cutting tool moves to the starting point, and then the cutting tool is moved sequentially along the coordinates to be cut of this layer until the cutting of the unit gasket 10 of this layer is completed; and so on, the processing is performed step by step until all the cutting of each layer of unit gaskets 10 is completed, and finally the excess parts 11 after cutting are peeled off.

[0043] It can be understood that when cutting downward in the vertical direction, the cutting tool starts from the starting point of the to-be-cut coordinates of the topmost unit gasket 10 and cuts vertically downward by a preset thickness, and then the cutting tool moves and cuts along the coordinates of the layer to be cut in sequence until the cutting of the layer of unit gaskets 10 is completed; according to the coordinates of the second layer of unit gaskets 10 to be cut, the cutting tool can be restored to its initial position, moved to the cutting starting point of the second layer, and then vertically descended by twice the preset distance to start cutting; or it can be directly moved horizontally to the cutting starting point of the second layer without restoring to the initial position and then descended by a preset thickness, and then moved and cut along the coordinates of the layer to be cut in sequence until the cutting of the layer of unit gaskets 10 is completed, and so on, processing step by step until all cutting of each layer of unit gaskets 10 is completed, and finally the excess part 11 after cutting is peeled off, which is the same as the effect of cutting upward in the vertical direction.

[0044] Optionally, step 3 can also be specifically implemented as follows: cutting the unit gasket 10 in sequence along the vertical direction downward with a preset thickness, and peeling off the excess part 11 of each layer after each layer of unit gasket 10 is cut; then the above steps are repeated to continue cutting and peeling off the next layer of unit gasket 10 until the cutting and peeling off of each layer of unit gasket 10 are completed. Each time, the cutting tool only needs to cut a preset thickness depth along the vertical direction, and complete the processing of the layer of unit gasket 10 according to the processing parameters. The force and wear range of the cutting tool are maintained within a smaller value, which saves the service life of the cutting tool while ensuring the processing accuracy, avoiding wasting cutting time, and ensuring the improvement of the effective cutting rate.

[0045] In a second aspect, the present invention discloses a gasket processing device, which is applicable to the gasket processing method in any of the above schemes, such as Figure 2 As shown in , the gasket processing device includes: a processing platform 4, a control module and a cutting module 2. The gasket 1 to be processed is placed on the processing platform 4, and the cutting module 2 is arranged above the processing platform 4, and can translate in a first direction and a second direction parallel to the processing platform 4 and perpendicular to each other, and move in the vertical direction with an integer multiple of a preset thickness as a moving unit, which can reduce the influence of interlayer force on gasket processing. By using the control module to obtain the processing parameters of the unit gasket 10 of each layer of the required gasket, and at the same time, the cutting module 2 is communicatively connected with the control module, the cutting module 2 can receive the processing parameters transmitted by the control module and cut the unit gasket 10 according to the processing parameters and then peel off the excess part 11. Exemplarily, the cutting module 2 can be set as the cutting tool in the above-mentioned gasket processing method.

[0046] Specifically, the control module includes a measuring conversion part, which is used to measure the size of the assembly gap at the target installation location of the gasket. The size of the assembly gap includes the size of the outer shape of each location of the assembly gap contour. By measuring the size of the assembly gap at the target installation location, the maximum value of the assembly gap size along the gasket thickness direction can be obtained to determine the preset thickness and number of layers of the unit gasket 10 of the gasket 1 to be processed, and prepare to make the gasket 1 to be processed. The gasket 1 to be processed includes a plurality of unit gaskets 10 stacked and bonded to each other. The material is simple and convenient to make the gasket 1 to be processed and can meet the preparation and processing of different required gaskets. There is no need for milling the outer shape and secondary bonding, and the production environment requirements are lower. According to the data processing of the assembly gap size, the gasket digital model for the non-straight gap is converted into a multi-step surface model, the unit step height is consistent with the preset thickness, and the contour size of the assembly gap at each unit step height is set to the corresponding coordinate to be cut for each layer of unit gasket 10.

[0047] Furthermore, the measuring conversion component is communicatively connected with the cutting module 2 to obtain the processing parameters of the unit gasket 10, and the gasket 1 to be processed with a preset thickness and number of layers is placed on the processing platform 4, so that the cutting module 2 can automatically plan the cutting path according to the processing parameters and the coordinates to be cut corresponding to each layer of the unit gasket 10.

[0048] Preferably, the cutting module 2 is configured to rotate with the vertical direction as the axis, which solves the problem that the cutting effect of the smooth position of the required gasket is not smooth enough, and avoids the problem that the required gasket does not fit the assembly gap well after the production is completed, which may cause the filling effect to be poor. It can better cut the arc-shaped contour, and the required gasket processed is higher in precision and better in effect. It is better for the cutting module 2 to have ultrasonic vibration processing capability, which can alleviate the extrusion of the cutting module 2 on the gasket 1 to be processed and avoid the possibility of gasket delamination. The tool of the cutting module 2 can use a narrower and sharper alloy steel blade as a metal engraving knife, which is more wear-resistant, sharper, and has higher cutting efficiency.

[0049] Optionally, an automatic removal component is also provided on the cutting module 2, which is used to mechanically peel off the excess part 11 after the gasket 1 to be processed is cut. Exemplarily, when the cutting module 2 sequentially cuts downward in the vertical direction with the preset thickness of the unit gasket 10, each time a layer of unit gasket 10 is cut, the cutting module 2 moves vertically downward from the starting point of the coordinates of the layer to be cut by a distance of a preset thickness, and then the cutting module 2 moves sequentially along the coordinates of the layer to be cut to cut until the cutting of the layer of unit gasket 10 is completed. At this time, the removal component is inserted between the excess part 11 of the unit gasket 10 that has just been processed and the next layer of unit gasket 10 to be processed, and the excess part 11 of this layer is lifted and cut off. After each layer of unit gasket 10 is cut, the excess part 11 of this layer can be mechanized and automatically peeled off, which can further improve efficiency and quality.

[0050] Exemplarily, manual peeling can also be performed by using an auxiliary part, which is configured as a thin hard plastic knife that can be inserted between two adjacent overlapping unit gaskets 10, making it more convenient for operators to perform targeted peeling and trimming on some gaskets with more complex shapes.

[0051] In this embodiment, the gasket processing device further includes a pad 3, which is placed between the gasket 1 to be processed and the processing platform 4, in order to prevent the cutting module 2 from cutting and damaging the processing platform 4. For example, the gasket can be made of aluminum alloy or plastic material, which is low in cost and reduces the loss of the cutting module 2.

[0052] Optionally, the gasket processing device further comprises a clamping module, which is configured to fix the gasket 1 to be processed on the processing platform 4, in order to better align the gasket 1 to be processed and facilitate the cutting module 2 to perform cutting processing on it.

[0053] On the third aspect, the present invention discloses a gasket processed using the above-mentioned gasket processing device and gasket processing method, which is not prone to delamination, has improved quality and precision, greatly shortens the processing flow, and can better meet the needs of aircraft assembly for gaskets with a large number of non-straight gaps.

[0054] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A method for processing a gasket, wherein the gasket is used to be installed at an assembly gap, the gasket to be processed (1) comprises a plurality of unit gaskets (10) stacked and bonded to each other, and the gasket is obtained by processing the gasket to be processed (1), characterized in that: The gasket processing method comprises: Step 1: Measure the target installation position of the gasket to obtain the size of the assembly gap; Step 2: determining the preset thickness and number of layers of the unit gasket (10) of the gasket (1) to be processed according to the maximum value of the size of the assembly gap along the gasket thickness direction; and determining the processing parameters of each layer of the unit gasket (10); Step 3: Cut each layer of the unit gasket (10) of the gasket to be processed (1) according to the processing parameters and peel off the excess part (11) after cutting.

2. The gasket processing method according to claim 1, characterized in that: The processing parameters include the number of layers of the unit gaskets (10) to be cut and the coordinates of each layer of the unit gaskets (10) to be cut.

3. The gasket processing method according to claim 1, characterized in that: Step 3 comprises: cutting each layer of the unit gasket (10) upward or downward in a vertical direction at an integral multiple of the preset thickness, and peeling off the excess portion (11) after the cutting of each layer of the unit gasket (10) is completed.

4. The gasket processing method according to claim 1, characterized in that: Step 3 comprises: cutting in sequence downward along the vertical direction with the preset thickness, and peeling off the excess part (11) after each layer of the unit gasket (10) is cut; and continuing to cut the next layer of the unit gasket (10) in a cycle to complete the cutting and peeling of each layer of the unit gasket (10).

5. The gasket processing method according to any one of claims 1 to 4, characterized in that: The excess part (11) after the cutting is peeled off by mechanical peeling or manual peeling.

6. A gasket processing device, characterized in that: A gasket processing method for implementing any one of claims 1 to 5, comprising: A processing platform (4) for placing the gasket (1) to be processed; A control module, used for obtaining processing parameters of the unit gaskets (10) of each layer; A cutting module (2) is arranged above the processing platform (4) and is in communication with the control module, and is used to cut the unit gasket (10) according to the processing parameters. The cutting module (2) can translate in a first direction and a second direction that are parallel to the processing platform (4) and perpendicular to each other, and can move in a vertical direction with an integral multiple of the preset thickness as a moving unit.

7. The gasket processing device according to claim 6, characterized in that: The control module comprises a measuring conversion element, which is in communication connection with the cutting module (2), and is used to measure the target installation position of the gasket to obtain the size of the assembly gap, so as to obtain the processing parameters of the unit gasket (10).

8. The gasket processing device according to claim 6, characterized in that: The cutting module (2) is configured to be rotatable with the vertical direction as the axis.

9. The gasket processing device according to claim 6, characterized in that: The gasket processing device also includes a gasket plate (3), and the gasket plate (3) is placed between the gasket to be processed (1) and the processing platform (4).

10. A gasket, characterized in that The gasket is manufactured by the gasket processing method as described in any one of claims 1 to 5.

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