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A Flexible Fixture with Adaptive Support and Multi-point Compression

A flexible fixture and self-adaptive technology, applied in the field of tooling and fixtures, can solve problems that affect product quality and processing efficiency, difficult processing, and large volume of assembled fixtures, so as to improve processing quality and production efficiency, and ensure processing accuracy and surface quality. Quality, shortening the effect of preparation time

Active Publication Date: 2021-04-27
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] like Figure 1-Figure 5 The lower suspension support parts shown in the design process often form various complex cavities, ribs, and lightening holes on the parts in order to reduce the weight, and the precision requirements are high, and the material is titanium alloy, which is difficult to process. It is difficult to process
[0003] Over the years, ordinary machine tools have been used for processing. The processing process is long, the processing cycle is long, a large number of special tooling is required, and repeated clamping is repeated, resulting in error accumulation, which seriously affects product quality and processing efficiency.
Especially when processing the shape of the bottom surface of the part, the traditional assembly fixture uses the large hole of the part as the main positioning of the part, and uses a flat plate to support the inclined surface of the part, resulting in over-positioning and inaccurate positioning of the part; The clamping position is far away from the processing end, resulting in insufficient clamping rigidity, large processing vibration, and poor surface quality of parts; and the shape and volume of the assembled fixture are large, making it difficult to align the fixture

Method used

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  • A Flexible Fixture with Adaptive Support and Multi-point Compression
  • A Flexible Fixture with Adaptive Support and Multi-point Compression
  • A Flexible Fixture with Adaptive Support and Multi-point Compression

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A flexible fixture with adaptive support and multi-point compression, such as Figure 1-Figure 5 , Figure 7 , Figure 8 As shown, it includes a clamp base 1 and a first adaptive clamping device 2, a second adaptive clamping device 3, an adaptive support device 4, and clamp support bosses 1-10 arranged on the clamp base 1; An adaptive clamping device 2 and a second adaptive clamping device 3 are respectively slidably connected to the fixture base 1, and the two ends of the first adaptive clamping device 2 and the second adaptive clamping device 3 are respectively connected to the part A The surface 8-2 and the part B surface 8-3 are compressed; the self-adaptive support device 4 is attached to the part C surface 8-4; the opening slot of the part is inserted into the fixture support boss 1-10, and the part main positioning sleeve 5 Insert the part positioning hole 8-1, the clamp support boss 1-10 and connect with the compression bolt 7.

[0047] In the present inventio...

Embodiment 2

[0050] This embodiment is optimized on the basis of embodiment 1, such as Image 6 , Figure 8-Figure 11 As shown, the fixture base 1 is positioned in the T-shaped slot of the machine tool workbench through the convex key, and is installed and fixed on the machine tool workbench through the T-shaped keys 1-4 and the fixing bolts 1-5. The two ends of the bottom of the fixture base 1 are respectively provided with rectangular convex keys 1-3, and the middle part is provided with diamond-shaped convex keys 1-6.

[0051] Other parts of this embodiment are the same as those of Embodiment 1, so details are not repeated here.

Embodiment 3

[0053] This embodiment is optimized on the basis of embodiment 1 or 2, as Figure 12-Figure 15 As shown, the first self-adaptive clamping device 2 includes a pressing seat slidably arranged on the clamp base 1 . The upper surface of the clamp base 1 is provided with a first T-shaped groove 1-1 corresponding to the first self-adaptive clamping device 2, and a first step boss 2-1 is correspondingly provided on the pressing seat, and the first The stepped boss 2-1 is slidingly connected with the first T-shaped slot 1-1. Left and right stud bolts 2-4 are arranged between adjacent compression seats, and adaptive support devices 4 are respectively provided on opposite sides of adjacent compression seats; Thread 4-2, hole 2-5, self-adaptive device pressing countersunk hole 2-6, left and right stud bolt connection threaded hole 2-7.

[0054] Other parts of this embodiment are the same as those of Embodiment 1 or 2 above, so details are not repeated here.

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Abstract

The invention discloses a flexible fixture with self-adaptive support and multi-point pressing, which comprises a fixture base and a first self-adaptive clamping device, a second self-adaptive clamping device, an self-adaptive support device and a fixture arranged on the fixture base. Supporting boss; the first self-adaptive clamping device and the second self-adaptive clamping device are respectively slidably connected to the clamp base, and the two ends of the first self-adaptive clamping device and the second self-adaptive clamping device are respectively connected to the The part A surface and the part B surface are pressed tightly; the self-adaptive support device is attached to the part C surface; the opening slot of the part is inserted into the fixture support boss, and the main positioning sleeve of the part is inserted into the part positioning hole, the fixture support boss and is connected with the press Tighten bolted connections. The invention designs multiple clamping points, and the clamping force can be evenly distributed on the parts, so that the rigidity of the parts during processing is well guaranteed, the machining accuracy and surface quality of the parts are guaranteed, the process flow and production preparation time are shortened, and the Improve processing quality and production efficiency.

Description

technical field [0001] The invention belongs to the technical field of fixtures, and in particular relates to a flexible fixture with self-adaptive support and multi-point pressing. Background technique [0002] like Figure 1-Figure 5 The lower suspension support parts shown in the design process often form various complex cavities, ribs, and lightening holes on the parts in order to reduce the weight, and the precision requirements are high, and the material is titanium alloy, which is difficult to process. Its processing is difficult. [0003] Over the years, ordinary machine tools have been used for processing. The processing process is long, the processing cycle is long, and a large number of special tooling is required. Repeated clamping for many times results in error accumulation, which seriously affects product quality and processing efficiency. Especially when processing the shape of the bottom surface of the part, the traditional assembly fixture uses the large h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q3/06
CPCB23Q3/06
Inventor 陈思涛朱璇庞敏郑长军汪小东
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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