An expanded seal sheet electro-processing positioning device

Abstract

The application relates to the technical field of sealing sheet processing, and particularly discloses an expanded sealing sheet electro-processing positioning device, which comprises a bottom plate, two centering vices are fixedly installed on the left side and the right side of the bottom plate respectively, the horizontal central axes of the two centering vices are coaxial with the horizontal central axis of the bottom plate, a plurality of supporting blocks are fixedly installed on the bottom plate, a connecting block is fixedly arranged at the end of the bottom plate, screw holes are arranged on the bottom plate, a pressing block is arranged on each supporting block and the connecting block correspondingly, through holes are arranged at the two ends of the pressing block, and a screw rod passes through the through holes and is matched with the screw holes on the bottom plate. The two centering vices are adopted to quickly, stably and accurately center, clamp and fix the expanded sealing sheet, so that linear cutting accuracy is ensured.

Description

Technical Field

[0001] This utility model relates to the field of sealing sheet processing technology, specifically to an electrical discharge machining positioning device for expanding sealing sheets. Background Technology

[0002] An expansion seal is a sealing element that expands radially through the pressure of a medium, and it is an important component in aero engines. This component is a thin-walled part, with the main body only 1 mm thick. Its core structure includes an outer sleeve, metal reinforcing ribs, and an inner sleeve. Some designs incorporate a fiber skeleton (such as a nylon cord layer) to ensure the rigidity of the component and prevent deformation.

[0003] The expansion sealing sheet is now linearly cut using the axis of symmetry as the machining reference. Since the structure of the expansion sealing sheet is symmetrical, it is difficult to ensure that the part is centered if the symmetrical side is used for positioning, which leads to inaccurate cutting position. Utility Model Content

[0004] The purpose of this invention is to provide an electrical discharge machining positioning device for expanding sealing sheets, so as to solve the problem that it is difficult to center the expanding sealing sheet during linear cutting, resulting in inaccurate cutting position.

[0005] To address the above issues, the following technical solution is provided:

[0006] An electrical discharge machining (EDM) positioning device for an expansion sealing sheet includes a base plate. Two centering vises are fixedly installed on the left and right sides of the base plate, respectively. The transverse central axis of the two centering vises is coaxial with the transverse central axis of the base plate. Several support blocks are fixedly installed on the base plate. A connecting block is fixedly placed at the far end of the base plate. The base plate is provided with threaded holes. Each support block and connecting block is provided with a corresponding pressure block. The pressure block is provided with through holes at both ends. A screw passes through the through holes and engages with the threaded holes on the base plate.

[0007] The basic principle of the above technical solution is as follows: the two ends of the expansion sealing sheet are respectively placed on two centering vises, the middle part of the expansion sealing sheet is supported on the support block, and the outermost end of the expansion sealing sheet is supported on the connecting block. When the screws on the centering vises are tightened, the two positioning blocks on the centering vises will move towards the center position at the same time, so as to achieve the effect of centering and positioning the expansion sealing sheet. Then, the pressure block is pressed onto the support block and the connecting block respectively. The screw passes through the through hole and engages with the threaded hole on the base plate. The nut of the screw presses on the through hole of the pressure block, thereby locking the pressure block and realizing the centering and positioning clamping of the expansion sealing sheet.

[0008] The beneficial effects of the above technical solution are as follows: Compared with the existing symmetrical positioning using an expansion sealing plate, this technical solution uses two centering vises to quickly, stably and accurately center and clamp and fix the expansion sealing plate, ensuring accurate linear cutting.

[0009] Furthermore, a planar positioning block is vertically fixedly installed on the connecting block. When installing the expansion sealing sheet, the end of the expansion sealing sheet is first placed against the center of the planar positioning block for planar positioning.

[0010] Furthermore, a head positioning block is fixedly installed at the center of the connecting block. The head of the expansion sealing sheet rests against the head positioning block for head positioning.

[0011] Furthermore, a T-shaped protrusion is provided at the center of the bottom end of the pressure block. When the pressure block is turned downwards, the protrusion presses precisely against the center of the expansion sealing sheet.

[0012] Furthermore, the base plate is provided with multiple hollow slots. These hollow slots facilitate the fixing and mounting of the base plate onto the cutting machine tool.

[0013] Furthermore, the base plate has multiple grooves along its two ends. These grooves facilitate the secure mounting of the base plate onto the cutting machine tool. Attached Figure Description

[0014] Figure 1 This is a top view of the base plate structure.

[0015] Figure 2 A three-dimensional structural diagram of the device with the expansion sealing sheet clamped in place;

[0016] Figure 3 This is a schematic diagram of the main structure of the device with the expansion sealing plate clamped in place;

[0017] Figure 4 This is a top view of the structure for mounting the expansion sealing plate on this device.

[0018] The reference numerals in the accompanying drawings include: base plate 1, hollow groove 2, groove 3, threaded hole 4, centering vise 5, support block 6, connecting block 7, flat positioning block 8, head positioning block 9, pressure block 10, protrusion 11, screw 12, and expansion sealing plate 13. Detailed Implementation

[0019] The following detailed description illustrates the specific implementation method:

[0020] The basic implementation examples are as follows: Figure 1-4 As shown:

[0021] An electrical discharge machining (EDM) positioning device for an expansion sealing sheet 13 includes a base plate 1, such as... Figure 1 As shown, the base plate 1 has two hollow grooves 2, three grooves 3 on the left edge of the base plate 1, two grooves 3 on the right edge of the base plate 1, and several threaded holes 4 on the base plate 1.

[0022] like Figure 2-3As shown, two centering vises 5 are fixedly installed on the left and right sides of the base plate 1 by bolts. Two hollow slots 2 are located between the two centering vises 5. The transverse central axis of the two centering vises 5 is coaxial with the transverse central axis of the base plate 1. Two support blocks 6 are fixedly installed on the base plate 1 by bolts. One support block 6 is located on the partition between the two hollow slots 2, and the other support block 6 is located on the right side of the rightmost hollow slot 2. A connecting block 7 is fixedly installed at the leftmost end of the base plate 1 by bolts. A plane positioning block 8 is vertically fixedly installed on the connecting block 7 by bolts. A head positioning block 9 is fixedly installed at the center of the connecting block 7 by bolts. Each support block 6 and connecting block 7 is provided with a corresponding pressure block 10. A protrusion 11 is provided at the center of the bottom end of the pressure block 10, making the pressure block 10 T-shaped. Through holes are provided at both ends of the pressure block 10. The screw 12 passes through the through holes and cooperates with the threaded hole 4 on the base plate 1, so that the protrusion 11 is pressed against the center of the expansion sealing sheet 13.

[0023] The specific implementation process is as follows:

[0024] The left end of the expansion sealing plate 13 is first engaged against the center of the planar positioning block 8 for planar positioning, while the head of the expansion sealing plate 13 is against the head positioning block 9 for head positioning. The two ends of the expansion sealing plate 13 are respectively placed on two centering vises 5. The two centering vises 5 clamp the expansion sealing plate 13 from both sides. The middle part of the expansion sealing plate 13 is supported on the support block 6, and the leftmost end of the expansion sealing plate 13 is supported on the connecting block 7. Tighten the screws on the centering vises 5, and the two positioning blocks on the centering vises 5 will move towards the center position at the same time, achieving the effect of centering the expansion sealing plate 13. Then, the pressure block 10 is pressed onto the support block 6 and the connecting block 7 respectively. The screw 12 passes through the through hole and engages with the threaded hole 4 on the base plate 1. The nut of the screw 12 presses on the through hole of the pressure block 10, thereby locking the pressure block 10 and realizing the centering and clamping of the expansion sealing plate 13. This device uses two centering vises 5 to quickly, stably, and accurately center and clamp the expansion sealing plate 13, ensuring accurate linear cutting.

[0025] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An electrical discharge machining (EDM) positioning device for an expanded sealing sheet, comprising a base plate, characterized in that: Two centering vises are fixedly installed on the left and right sides of the base plate, respectively. The transverse central axis of the two centering vises is coaxial with the transverse central axis of the base plate. Several support blocks are fixedly installed on the base plate, and a connecting block is fixedly placed at the far end of the base plate. The base plate is provided with threaded holes. Each support block and connecting block is provided with a corresponding pressure block. The pressure block is provided with through holes at both ends. The screw passes through the through holes and engages with the threaded holes on the base plate.

2. The expansion sealing sheet electrical discharge machining positioning device according to claim 1, characterized in that: A planar positioning block is vertically fixed on the connecting block.

3. The expansion sealing sheet electrical discharge machining positioning device according to claim 2, characterized in that: A head positioning block is fixedly installed at the center of the connecting block.

4. The expansion sealing sheet electrical discharge machining positioning device according to claim 3, characterized in that: The bottom center of the pressure block has a protrusion that makes the pressure block T-shaped.

5. The expansion sealing sheet electrical discharge machining positioning device according to claim 4, characterized in that: The base plate has multiple hollow grooves.

6. The expansion sealing sheet electrical discharge machining positioning device according to claim 5, characterized in that: The base plate has multiple grooves at both ends of its edge.

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