Automatic quick clamping fixture for aircraft seat slide rail

Abstract

This utility model relates to an automatic quick-clamping fixture for aircraft seat slide rails, belonging to the field of aircraft parts processing technology. It includes a push cylinder with a clamping slider at its output end for holding the part. The push cylinder is fixed to a base, and a rotary clamping cylinder is rotatably mounted on the base. When the rotary clamping cylinder rotates 90 degrees, it acts on the top of the part. This application significantly reduces the torsional deformation of long, straight, thin-walled aluminum alloy parts caused by clamping force through staged clamping and multiple limiting designs. Simultaneously, in this application, the rotary clamping cylinder is moved away before processing to avoid interfering with the tool path, ensuring the stability of the machining contour and reducing the impact of vibration on surface quality and tool life.

Description

Technical Field

[0001] This utility model relates to the field of aircraft parts processing technology, specifically to an automatic quick clamping fixture for aircraft seat slide rails. Background Technology

[0002] Among aircraft parts, seat rails are numerous and varied. Because they are made of aluminum alloy extrusion profiles and have a long, straight structure, they are prone to twisting and deformation, making them difficult to clamp. This results in a long time to find the reference point during clamping, and the machining of thin-walled parts is prone to vibration, affecting the machining effect and the service life of the cutting tools. Utility Model Content

[0003] The technical problem solved by this utility model is to address the issue that in the prior art, when pressing and fixing seat-type parts, twisting and deformation are easily generated, which affects the clamping effect.

[0004] This utility model can be achieved through the following technical solution: an automatic quick clamping fixture for aircraft seat slide rails, including a push cylinder, the output end of which is provided with a clamping slider for clamping parts, the push cylinder is fixed on a base, and a rotary clamping cylinder is rotatably provided on the base, the rotary clamping cylinder acting on the top of the parts when it rotates 90 degrees.

[0005] A further technical improvement of this utility model is that a positioning groove is provided on the side of the base, the positioning groove and the positioning pin cooperate, and the positioning pin passes through the positioning reference block.

[0006] A further technical improvement of this utility model is that: a sliding groove is provided on the base, a positioning reference block is slidably arranged on the sliding groove, a positioning pin is provided on the positioning reference block, the positioning pin is conical, and a positioning groove for cooperating with the positioning pin is provided on the sliding groove.

[0007] A further technical improvement of this utility model is that: the rotary clamping cylinder is fixedly mounted on the rotating rod, the rotating rod is mounted on the rotary motor, the rotary motor is fixedly mounted on the base, and the output end of the rotary clamping cylinder acts on the top of the part.

[0008] A further technical improvement of this utility model is that: a sliding groove is provided on the base, an adjusting cylinder is provided inside the sliding groove, and a positioning reference block for limiting the side of the part is provided at the output end of the adjusting cylinder.

[0009] A further technical improvement of this utility model is that: the push cylinder is provided in several groups, and there is a gap between the clamping sliders on the output ends of adjacent push cylinders.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. This application significantly reduces the torsional deformation of long, straight, thin-walled aluminum alloy parts caused by clamping force through staged clamping (pre-positioning of the push cylinder + top pressing of the rotary clamping cylinder) and multiple limiting designs (lateral positioning reference block, top pressing). At the same time, in this application, the rotary clamping cylinder is moved away before processing to avoid interfering with the tool path, ensure the stability of the machining contour, and reduce the impact of vibration on surface quality and tool life.

[0012] 2. This application achieves one-button automatic clamping and loosening through a fully pneumatic drive (push cylinder, rotary clamping cylinder, adjustment cylinder), which greatly shortens the time of traditional manual alignment. At the same time, this application adapts to parts of different sizes through modular design (the number of cylinders can be increased or decreased, and the position of the positioning reference block can be adjusted), reducing changeover time and enhancing the flexibility of the production line. Attached Figure Description

[0013] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram showing the positioning reference block of this utility model returning to its original position;

[0016] Figure 3 This is a schematic diagram of the working position of the rotary clamping cylinder of this utility model.

[0017] In the diagram: 1. Base; 2. Clamping slider; 3. Push cylinder; 4. Positioning reference block; 5. Positioning pin; 6. Rotary cylinder fixing seat; 7. Rotary clamping cylinder. Detailed Implementation

[0018] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0019] Example 1

[0020] Please see Figure 1-3 As shown, an automatic quick clamping fixture for aircraft seat slide rails includes a push cylinder 3, which is fixedly mounted on a base 1. A rotary cylinder fixing seat 6 is also fixed on the base 1, and a rotary clamping cylinder 7 is fixedly mounted on the rotary cylinder fixing seat 6. A clamping slider 2 is connected to the output end of the push cylinder 3. A positioning reference block 4 is also mounted on the base 1 through a positioning pin 5. Therefore, a number of positioning grooves are provided on the base 1 for cooperating with the positioning pins 5. The positioning grooves and positioning pins 5 are engaged to adjust the position of the positioning reference block 4.

[0021] In use, the part is first placed on the base 1. Then, the push cylinder 3 is activated, causing it to push the clamping slider 2, which acts on the part to pre-clamp it. At this point, it is not fully clamped; it has only been pushed to the position without applying sufficient force. Then, the rotary clamping cylinder 7 is rotated, so that its end is above the part, pressing it to suppress its deformation. The push cylinder 3 then pushes the clamped part, and the rotary clamping cylinder 7 is rotated back to its original position to avoid interference caused by its end being on the part. Then, the positioning pin 5 is adjusted to remove it from its corresponding positioning slot. The positioning reference block 4 is then moved to the edge position. At this point, the positioning pin 5 is inserted into another set of positioning slots to fix the position of the positioning reference block 4, thus avoiding interference between the end of the part and the positioning reference block.

[0022] The above technical solution can quickly achieve part positioning and automatic clamping, ensure that the part is in a flat state during processing, eliminate the influence of deformation caused by the material itself on processing, and thus ensure the efficiency and quality of part processing.

[0023] Example 2

[0024] A sliding groove is provided on the base 1, and a positioning reference block 4 is slidably disposed on the sliding groove. A positioning groove for cooperating with the positioning pin 5 is provided inside the sliding groove. In this application, the positioning pin 5 is conical, and the conical positioning pin 5 can cooperate with the positioning reference block 4 and the positioning groove respectively.

[0025] In this technical solution, the positioning reference block 4 and the conical positioning pin 5 are designed so that the positioning reference block 4 can slide in the positioning groove. At this time, the positioning reference block 4 does not separate from the fixture itself, thus avoiding the problem of loss of the single cylindrical pin due to operational errors when positioning with a single cylindrical pin in the past.

[0026] Example 3

[0027] The rotary clamping cylinder 7 is fixedly mounted on a rotating rod, which is mounted on a rotary motor. The rotary motor drives the rotating rod to rotate, thereby driving the rotary clamping cylinder 7 to rotate. This allows the rotary clamping cylinder 7 to rotate to the position of the part. By extending, the rotary clamping cylinder 7 can directly act on the part, squeezing it and limiting the top of the part. This prevents deformation of the part during clamping.

[0028] Example 4

[0029] A sliding groove is provided on the base 1, and an adjusting cylinder is provided inside the sliding groove. A positioning reference block 4 is provided at the output end of the adjusting cylinder. The positioning reference block 4 is slidably connected to the sliding groove. When the part is clamped, the adjusting cylinder is activated, causing the positioning reference block 4 to move to the side of the part. The positioning reference blocks 4 on both sides of the part limit the side of the part, and the rotating clamping cylinder 7 limits the top of the part. Thus, when the pushing cylinder 3 is activated, the end of the pushing cylinder 3 acts on the part to press and fix the part, thereby limiting the part in all directions and reducing the possibility of deformation of the part. After clamping, the rotating clamping cylinder 7 is removed, and the positioning reference block 4 is removed under the action of the adjusting cylinder.

[0030] Example 5

[0031] In this embodiment, several sets of push cylinders 3 and several sets of rotary clamping cylinders 7 are provided, and there is a gap between the clamping sliders 2 on adjacent push cylinders 3. At this time, the appropriate number of push cylinders 3 can be selected according to the size of the part, so that the clamping sliders can act on the part and clamp the part. Since there is a gap between the clamping sliders 2, a limiting block can be added between the gaps of the clamping sliders 2. Under the limiting action of the clamping sliders 2, the limiting block can abut against one end of the part, thereby limiting one end of the part. At the same time, the positioning reference block 4 is used to limit the other end of the part, thereby achieving full limiting of the part.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An automatic quick clamping fixture for an aircraft seat slide rail, characterized by: The device includes a push cylinder (3), the output end of which is provided with a clamping slider (2) for clamping the part. The push cylinder (3) is fixed on the base (1), and a rotary pressing cylinder (7) is rotatably provided on the base (1). The rotary pressing cylinder (7) acts on the top of the part when it rotates ninety degrees.

2. The automatic quick-clamping fixture for aircraft seat slide rails according to claim 1, characterized in that, The base (1) has a positioning groove on its side, which cooperates with the positioning pin (5), and the positioning pin (5) passes through the positioning reference block (4).

3. The automatic quick clamping fixture for aircraft seat slide rail according to claim 1, characterized in that, The base (1) has a sliding groove, and a positioning reference block (4) is slidably disposed on the sliding groove. A positioning pin (5) is disposed on the positioning reference block (4). The positioning pin (5) is conical, and the sliding groove has a positioning groove for cooperating with the positioning pin (5).

4. The automatic quick clamping fixture for aircraft seat slide rail according to claim 1, characterized in that, The rotary clamping cylinder (7) is fixedly mounted on the rotating rod, the rotating rod is mounted on the rotary motor, the rotary motor is fixedly mounted on the base (1), and the output end of the rotary clamping cylinder (7) acts above the part.

5. The automatic quick clamping fixture for aircraft seat slide rail according to claim 1, wherein, The base (1) is provided with a sliding groove, and an adjusting cylinder is provided inside the sliding groove. The output end of the adjusting cylinder is provided with a positioning reference block (4) for limiting the side of the part.

6. An automatic quick clamping fixture for aircraft seat slide rails according to claim 1, wherein, The push cylinder (3) is provided in several groups, and there is a gap between the clamping slider (2) on the output end of adjacent push cylinders (3).

Images