Rapid positioning and reloading method and device for special-shaped protective cover machining

Abstract

The invention relates to a rapid positioning and reloading method and device for special-shaped protective cover machining, and solves the problems that the special-shaped protective cover machining positioning and aligning period is long, and positioning and aligning are conducted again during face changing machining. The device comprises a quick reloading device I and a quick reloading device II, each of the two parts comprises a part limiting block, a device limiting opening, a self-adaptive supporting block, a rigid supporting block and a high-precision positioning pin hole which are mounted on the device bottom plate, the three self-adaptive supporting blocks are arranged in an equilateral triangle shape, the heads of the three self-adaptive supporting blocks are rotatable, and the surfaces of the three self-adaptive supporting blocks are curved surfaces; the positions of the rigid supporting blocks correspond to the clamping feature positions of the special-shaped protection cover, and the part limiting blocks are matched with the limiting feature positions of the special-shaped protection cover. The two parts of device bottom plates are consistent in size, and device limiting openings are consistent in position and size; the high-precision positioning pin holes of the special-shaped protection cover and the high-precision positioning pin holes of the two parts are consistent in size and correspond in position. The device is convenient to use and simple in structure, and the equipment utilization rate and the machining efficiency are improved.

Description

Technical Field

[0001] The invention relates to a rapid positioning and replacement method and device for machining special-shaped protective covers, belonging to the field of mechanical machining. Background Art

[0002] The protective cover is one of the important structural parts of the aircraft, and its main function is to protect important devices. Due to the different protected parts, the protective cover parts often present complex special-shaped structures. Such parts usually have high requirements for the appearance contour and wall thickness. During the processing, the positioning of the parts is high, and the positioning and alignment cycle is long. At the same time, such parts usually form a closed end, so most of the structures tend to have a narrow and closed inner cavity structure design. The consistency of the part blank is poor, and it is difficult to complete the processing in one clamping through the inner cavity support. Therefore, it is necessary to design a multi-faceted processing plan according to the surface structure. When changing the surface, the parts need to be re-positioned and aligned, which greatly prolongs the part alignment time, making the processing efficiency of such complex components low, affecting equipment utilization, and difficult to achieve intelligent processing. Summary of the invention

[0003] The present invention provides a method and device for rapid positioning and replacement of special-shaped protective covers, realizes rapid positioning of parts and rapid replacement of face-changing processing by mechanical limiting means, and solves the problems of long positioning and alignment cycle of special-shaped protective covers and re-positioning and alignment during face-changing processing.

[0004] The present invention is achieved by the following technical solutions:

[0005] A rapid positioning and changing method for processing a special-shaped protective cover, comprising a rapid changing device I and a rapid changing device II;

[0006] The quick-changing device I comprises a part limit block I-2, a device limit port I-3, an adaptive support block I-4, an adaptive support block II I-5, an adaptive support block III I-6, a rigid support block I-7, a rigid support block II I-8, a rigid support block III I-9, a rigid support block IV I-10 and a high-precision positioning pin hole I-11, which are installed on a device bottom plate I-1. The adaptive support block I-4, the adaptive support block II I-5 and the adaptive support block III I-6 are arranged in an equilateral triangle, with the adaptive support block I-4 as the vertex, and the head of the adaptive support block can rotate 270 degrees, and the surface is a curved surface;

[0007] The quick-changing device II comprises a part limit block II-2, a device limit opening II-3, an adaptive support block IV-4, an adaptive support block V-5, an adaptive support block VI-6, a rigid support block V-7, a rigid support block VI-8, a rigid support block VII-9, a rigid support block VIII-10 and a high-precision positioning pin hole II-11, which are installed on the device bottom plate II-1. The adaptive support block IV-4, the adaptive support block V-5 and the adaptive support block VI-6 are arranged in an equilateral triangle, with the adaptive support block IV-4 being the vertex, and the head of the adaptive support block can rotate 270 degrees, and the surface is a curved surface;

[0008] The special-shaped protective cover is symmetrical on the left and right, including a large surface III-1, a small surface III-2, a limiting feature III-3, a clamping feature one III-4, a clamping feature two III-5, a clamping feature three III-6, a clamping feature four III-7 and a high-precision positioning pin hole III-8; the large surface III-1 is a convex surface, the small surface III-2 is a concave surface, the back of the convex surface of the large surface III-1 and the back of the concave surface of the small surface III-2 form a cavity, the clamping feature one III-4, the clamping feature two III-5, the clamping feature three III-6, and the clamping feature four III-7 are respectively located at the left front, left and right, right front, and right rear positions of the large surface III-1, and are symmetrically distributed, the high-precision positioning pin hole III-8 is opened on the clamping feature one III-4, and the limiting feature III-3 is located in the middle of the large end tail of the large surface III-1;

[0009] In the quick-changing device Ⅰ and the quick-changing device Ⅱ, the device bottom plate Ⅰ-1 and the device bottom plate Ⅱ-1 are consistent in size; the device limit opening Ⅰ-3 and the device limit opening Ⅱ-3 are consistent in position and size; the special-shaped protective cover high-precision positioning pin hole Ⅲ-8 is consistent in size with the high-precision positioning pin hole Ⅰ-11 of the quick-changing device Ⅰ and the high-precision positioning pin hole Ⅱ-11 of the quick-changing device Ⅱ;

[0010] The processing steps of special-shaped protective cover include:

[0011] 1) Ensure that the large surface III-1 faces upward, the rigid support block I-7 fits with the clamping feature III-6; the rigid support block II I-8 fits with the clamping feature I III-4; the rigid support block III I-9 fits with the clamping feature II III-5; the rigid support block IV I-10 fits with the clamping feature IV III-7, and the rough positioning of the special-shaped protective cover is completed;

[0012] 2) Align the high-precision positioning pin hole I-11 of the quick-changing device I and the high-precision positioning pin hole III-8 of the special-shaped protective cover, install the limiting feature III-3 of the special-shaped protective cover to the limiting block I-2 of the part of the quick-changing device I, and complete the precise positioning of the special-shaped protective cover;

[0013] 3) The adaptive support block 3 I-6 located in the middle position of the quick-changing device I is fitted with the small surface III-2 of the special-shaped protective cover, and the heads of the adaptive support block 1 I-4 and the adaptive support block 2 I-5 are rotated and adjusted according to the installation situation to maximize the contact with the special-shaped protective cover to complete the auxiliary support of the special-shaped protective cover;

[0014] 4) After the first round of processing of the special-shaped protective cover is completed, the quick-changing device I is removed from the processing equipment;

[0015] 5) Place the quick-change device II on the processing equipment, and complete the device replacement by aligning the device bottom plate II-1 and the device limit opening II-3 with the device bottom plate I-1 and the device limit opening I-3 in the quick-change device I;

[0016] 6) With the small surface III-2 of the special-shaped protective cover facing upward, repeat steps 2) to 4) to achieve rapid positioning and replacement of the special-shaped protective cover.

[0017] The present invention provides a rapid positioning and replacement device which is quickly interchangeable, easy to use, simple in structure, and low in cost, thereby realizing rapid positioning and rapid replacement of special-shaped protective covers on processing equipment, thereby improving equipment utilization and processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the quick-changing device I of the present invention;

[0019] Figure 2 It is a schematic diagram of the quick-changing device II of the present invention;

[0020] Figure 3 It is a large-scale schematic diagram of the special-shaped protective cover of the present invention;

[0021] Figure 4 It is a small schematic diagram of the special-shaped protective cover of the present invention. DETAILED DESCRIPTION

[0022] like Figure 1-4 As shown, the present invention proposes a method and device for automatic processing and rapid positioning and replacement of special-shaped protective covers, which includes two parts: a rapid replacement device I and a rapid replacement device II;

[0023] (1) The quick-changing device I includes a device bottom plate I-1, a part limit block I-2, a device limit port I-3, an adaptive support block I-4, an adaptive support block II I-5, an adaptive support block III I-6, a rigid support block I-7, a rigid support block II I-8, a rigid support block III I-9, a rigid support block IV I-10 and a high-precision positioning pin hole I-11. The adaptive support block I-4, the adaptive support block II I-5 and the adaptive support block III I-6 are arranged in an equilateral triangle, with the adaptive support block I-4 being the vertex, and the head of the adaptive support block can rotate 270 degrees, and the surface is a curved surface;

[0024] (2) The quick-changing device II includes a device bottom plate II-1, a part limit block II-2, a device limit opening II-3, an adaptive support block IV-4, an adaptive support block V-5, an adaptive support block VI-6, a rigid support block V-7, a rigid support block VI-8, a rigid support block VII-9, a rigid support block VIII-10 and a high-precision positioning pin hole II-11, wherein the adaptive support block IV-4, the adaptive support block V-5 and the adaptive support block VI-6 are arranged in an equilateral triangle, with the adaptive support block IV-4 being the vertex, and the head of the adaptive support block can rotate 270 degrees, and the surface is a curved surface;

[0025] (3) The special-shaped protective cover is symmetrical on the left and right, including a large surface III-1, a small surface III-2, a limiting feature III-3, a clamping feature 1 III-4, a clamping feature 2 III-5, a clamping feature 3 III-6, a clamping feature 4 III-7 and a high-precision positioning pin hole III-8; the large surface III-1 is a convex surface, the small surface III-2 is a concave surface, the back of the convex surface of the large surface III-1 and the back of the concave surface of the small surface III-2 form a cavity, the clamping feature 1 III-4, the clamping feature 2 III-5, the clamping feature 3 III-6, and the clamping feature 4 III-7 are respectively located at the left front, left and right, right front, and right rear positions of the large surface III-1, and are symmetrically distributed, the high-precision positioning pin hole III-8 is opened on the clamping feature 1 III-4, and the limiting feature III-3 is located in the middle of the large end tail of the large surface III-1;

[0026] (4) In the quick-changing device I and the quick-changing device II, the device bottom plate I-1 and the device bottom plate II-1 are of the same size; the device limit opening I-3 and the device limit opening II-3 are of the same position and size; the special-shaped protective cover high-precision positioning pin hole III-8 is of the same size as the high-precision positioning pin hole I-11 of the quick-changing device I and the high-precision positioning pin hole II-11 of the quick-changing device II;

[0027] (5) When processing the special-shaped protective cover, first, ensure that the large surface III-1 faces upward, the rigid support block I-7 fits with the clamping feature III-6; the rigid support block II I-8 fits with the clamping feature I III-4; the rigid support block III I-9 fits with the clamping feature II III-5; the rigid support block IV I-10 fits with the clamping feature IV III-7, and the rough positioning of the special-shaped protective cover is completed;

[0028] (6) Secondly, align the high-precision positioning pin hole I-11 of the quick-changing device I and the high-precision positioning pin hole III-8 of the special-shaped protective cover, install the limiting feature III-3 of the special-shaped protective cover to the limiting block I-2 of the part of the quick-changing device I, and complete the precise positioning of the special-shaped protective cover;

[0029] (7) Finally, the adaptive support block 3 I-6 located in the middle position of the quick-changing device I is fitted with the small surface III-2 of the special-shaped protective cover, and the heads of the adaptive support block 1 I-4 and the adaptive support block 2 I-5 are adjusted according to the installation situation to maximize the contact with the back of the large surface III-1, thereby completing the auxiliary support of the special-shaped protective cover;

[0030] (8) After the first round of processing of the special-shaped protective cover is completed, the quick-changing device I is removed from the processing equipment;

[0031] (9) Place the quick-change device II on the processing equipment, and complete the device replacement by aligning the device bottom plate II-1 and the device limit opening II-3 with the device bottom plate I-1 and the device limit opening I-3 in the quick-change device I;

[0032] (10) With the small surface III-2 of the special-shaped protective cover facing upward, repeat steps (6) to (8) to achieve rapid positioning and replacement of the special-shaped protective cover.

Claims

1. A rapid positioning and replacement method for processing special-shaped protective covers, characterized by: It consists of two parts: quick-changing device I and quick-changing device II; The quick-changing device I comprises a part limit block 1 (I-2), a device limit opening 1 (I-3), an adaptive support block 1 (I-4), an adaptive support block 2 (I-5), an adaptive support block 3 (I-6), a rigid support block 1 (I-7), a rigid support block 2 (I-8), a rigid support block 3 (I-9), a rigid support block 4 (I-10) and a high-precision positioning pin hole 1 (I-11) installed on a device bottom plate 1 (I-1). The adaptive support block 1 (I-4), the adaptive support block 2 (I-5) and the adaptive support block 3 (I-6) are arranged in an equilateral triangle, with the adaptive support block 1 (I-4) being the vertex, and the head of the adaptive support block can rotate, and the surface is a curved surface; The quick-changing device II comprises a part limit block II (II-2) installed on a device bottom plate II (II-1), a device limit opening II (II-3), an adaptive support block IV (II-4), an adaptive support block V (II-5), an adaptive support block VI (II-6), a rigid support block V (II-7), a rigid support block VI (II-8), a rigid support block VII (II-9), a rigid support block VIII (II-10) and a high-precision positioning pin hole II (II-11); the adaptive support block IV (II-4), the adaptive support block V (II-5) and the adaptive support block VI (II-6) are arranged in an equilateral triangle, with the adaptive support block IV (II-4) being the vertex, and the head of the adaptive support block being rotatable, and the surface being a curved surface; The special-shaped protective cover is bilaterally symmetrical, including a large surface (Ⅲ-1), a small surface (Ⅲ-2), a limiting feature (Ⅲ-3), a clamping feature one (Ⅲ-4), a clamping feature two (Ⅲ-5), a clamping feature three (Ⅲ-6), a clamping feature four (Ⅲ-7) and a high-precision positioning pin hole (Ⅲ-8); the large surface (Ⅲ-1) is a convex surface, the small surface (Ⅲ-2) is a concave surface, the back of the convex surface of the large surface (Ⅲ-1) and the back of the concave surface of the small surface (Ⅲ-2) form a cavity, the clamping feature one (Ⅲ-4), the clamping feature two (Ⅲ-5), the clamping feature three (Ⅲ-6), and the clamping feature four (Ⅲ-7) are respectively located at the left front, left and right, right front, and right rear positions of the large surface (Ⅲ-1), and are symmetrically distributed, the high-precision positioning pin hole (Ⅲ-8) is opened on the clamping feature one (Ⅲ-4), and the limiting feature (Ⅲ-3) is located in the middle of the large end tail of the large surface (Ⅲ-1); In the quick-changing device I and the quick-changing device II, the device bottom plate 1 (I-1) and the device bottom plate 2 (II-1) have the same size; the device limit opening 1 (I-3) and the device limit opening 2 (II-3) have the same position and size; The dimensions of the high-precision positioning pin hole (Ⅲ-8) of the special-shaped protective cover are consistent with the dimensions of the high-precision positioning pin hole 1 (Ⅰ-11) of the quick-changing device Ⅰ and the high-precision positioning pin hole 2 (Ⅱ-11) of the quick-changing device Ⅱ; The processing steps of special-shaped protective cover include: 1) Ensure that the large surface (Ⅲ-1) faces upward, the rigid support block 1 (Ⅰ-7) fits with the clamping feature 3 (Ⅲ-6); the rigid support block 2 (Ⅰ-8) fits with the clamping feature 1 (Ⅲ-4); the rigid support block 3 (Ⅰ-9) fits with the clamping feature 2 (Ⅲ-5); the rigid support block 4 (Ⅰ-10) fits with the clamping feature 4 (Ⅲ-7), and the rough positioning of the special-shaped protective cover is completed; 2) Align the high-precision positioning pin hole 1 (Ⅰ-11) of the quick-changing device Ⅰ and the high-precision positioning pin hole (Ⅲ-8) of the special-shaped protective cover, install the limiting feature (Ⅲ-3) of the special-shaped protective cover to the limiting block 1 (Ⅰ-2) of the part of the quick-changing device Ⅰ, and complete the precise positioning of the special-shaped protective cover; 3) The adaptive support block 3 (I-6) located in the middle position of the quick-changing device I is fitted with the small surface (III-2) of the special-shaped protective cover, and the heads of the adaptive support block 1 (I-4) and the adaptive support block 2 (I-5) are rotated and adjusted according to the installation situation to maximize the contact with the special-shaped protective cover to complete the auxiliary support of the special-shaped protective cover; 4) After the first round of processing of the special-shaped protective cover is completed, the quick-changing device I is removed from the processing equipment; 5) Place the quick-change device II on the processing equipment, and complete the device replacement by aligning the device bottom plate II (II-1) and the device limit opening II (II-3) with the device bottom plate I (I-1) and the device limit opening I (I-3) in the quick-change device I; 6) With the small surface (III-2) of the special-shaped protective cover facing upward, repeat steps 2) to 4) to achieve rapid positioning and replacement of the special-shaped protective cover.

2. A rapid positioning and changing device for processing special-shaped protective covers, characterized by: It consists of two parts: quick-changing device I and quick-changing device II; The quick-changing device I comprises a part limit block 1 (I-2) installed on a device bottom plate 1 (I-1), a device limit opening 1 (I-3), an adaptive support block 1 (I-4), an adaptive support block 2 (I-5), an adaptive support block 3 (I-6), a rigid support block 1 (I-7), a rigid support block 2 (I-8), a rigid support block 3 (I-9), a rigid support block 4 (I-10) and a high-precision positioning pin hole 1 (I-11), an adaptive support block 1 (I-4), The adaptive support block 2 (Ⅰ-5) and the adaptive support block 3 (Ⅰ-6) are arranged in an equilateral triangle, the adaptive support block 1 (Ⅰ-4) is the vertex, and the head of the adaptive support block is rotatable, and the surface is a curved surface; the positions of the rigid support block 1 (Ⅰ-7), the rigid support block 2 (Ⅰ-8), the rigid support block 3 (Ⅰ-9), and the rigid support block 4 (Ⅰ-10) respectively correspond to the clamping feature positions of the special-shaped protective cover, and the part limit block 1 (Ⅰ-2) and the limit feature (Ⅲ-3) of the special-shaped protective cover cooperate; The quick-changing device II includes a part limit block II (II-2) installed on the device bottom plate II (II-1), a device limit opening II (II-3), an adaptive support block IV (II-4), an adaptive support block V (II-5), an adaptive support block VI (II-6), a rigid support block V (II-7), a rigid support block VI (II-8), a rigid support block VII (II-9), a rigid support block VIII (II-10) and a high-precision positioning pin hole II (II-11), an adaptive support block IV (II-4), The adaptive support block five (Ⅱ-5) and the adaptive support block six (Ⅱ-6) are arranged in an equilateral triangle, the adaptive support block four (Ⅱ-4) is the vertex, and the head of the adaptive support block is rotatable, and the surface is a curved surface. The positions of the rigid support block five (Ⅱ-7), the rigid support block six (Ⅱ-8), the rigid support block seven (Ⅱ-9), and the rigid support block eight (Ⅱ-10) respectively correspond to the clamping feature positions of the special-shaped protective cover, and the part limit block two (Ⅱ-2) and the special-shaped protective cover limit feature (Ⅲ-3) cooperate; In the quick-changing device I and the quick-changing device II, the device bottom plate 1 (I-1) and the device bottom plate 2 (II-1) have the same size; the device limit opening 1 (I-3) and the device limit opening 2 (II-3) have the same position and size; The high-precision positioning pin hole (III-8) of the special-shaped protective cover is consistent in size with the high-precision positioning pin hole 1 (I-11) of the quick-changing device I and the high-precision positioning pin hole 2 (II-11) of the quick-changing device II, and their positions correspond.

3. The rapid positioning and changing device for processing special-shaped protective covers according to claim 2 is characterized in that: In the quick-changing device I and the quick-changing device II, the head of the adaptive support block can be rotated to an angle of 270 degrees.

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