Spoke type case welding flexible self-adaptive clamp

Abstract

The present application relates to a kind of spoke type machine case welding flexible self-adapting clamp, including base and guide seat, machine case is fixed around base and the axial movement of machine case is limited by limiting block;Base and guide seat are coaxially arranged, and a plurality of self-locking lead screws are evenly distributed in the circumferential direction between base and guide seat and are arranged obliquely;The fixed block of one end of self-locking lead screw is fixed on base, and the fixed block of the other end is fixed on the bottom surface of guide seat;Multiple oblique waist-shaped holes are evenly distributed in the circumferential direction along the edge of guide seat, and one end of adjusting guide seat is fixed in waist-shaped hole and is slidably connected with waist-shaped hole;The other end of adjusting guide seat is fixed with pressure block;Base is evenly distributed with the same number of fixed support as adjusting guide seat in the circumferential direction, and guide seat is evenly distributed with the same number of moving support as adjusting guide seat in the circumferential direction.The present application realizes once tensioning and retraction, improves the quality of tensioning, reduces the operation skill requirement and labor intensity of operator, and improves labor efficiency.

Description

Technical Field

[0001] This invention belongs to the field of aero-engine process equipment technology, and particularly relates to a flexible adaptive fixture for welding spoke-type casings. Background Technology

[0002] Currently, existing tooling for spoke-type welded housings uses a single-slot pre-deformation method, such as... Figure 1 As shown, the working principle of this fixture is to adjust the up-and-down movement of the wedge 14 to push the tensioning block 12 away from the center of the fixture, thereby achieving tensioning of the spoke-type housing being machined. However, this structure has the following main problems:

[0003] 1) The tightening block can only be adjusted in one direction and cannot be reversed, i.e., as shown below. Figure 1 As shown, the movement is in a direction away from the center of the tooling, making disassembly inconvenient;

[0004] 2) The original structure was a single-point adjustment, not a multi-point simultaneous linkage, resulting in poor consistency after adjustment;

[0005] 3) The operation process is complex and cannot meet the requirements for mass production of parts. Summary of the Invention

[0006] To address the shortcomings of existing technologies, such as inconvenient single-point adjustment and poor consistency, this invention provides a flexible adaptive fixture for welding spoke-type housings. It eliminates the original single-point wedge tensioning and moving structure, employing a threaded screw to change the direction of movement. A guide seat enables uniform adaptive flexible tensioning of the entire fixture, improving consistency after tensioning. During disassembly, non-tensioning is achieved in the opposite direction, facilitating part removal. This invention significantly improves work efficiency and enables mass production of spoke-type housings.

[0007] A flexible adaptive fixture for welding spoke-type housings includes a base and a guide seat. The housing is fixed around the base and its axial movement is restricted by limiting blocks. The base and guide seat are coaxially arranged vertically. Multiple inclined self-locking screws are evenly distributed circumferentially between the base and guide seat. The central axis of the threaded screw in the self-locking screw forms an angle with the radial direction of the base. A fixing block at one end of the self-locking screw is fixed to the base, and a fixing block at the other end is fixed to the bottom surface of the guide seat. Multiple limiting holes are evenly distributed circumferentially on the guide seat, and the fixing block at one end of the self-locking screw is fixed within these limiting holes. The edge of the guide seat is circumferentially... The base has multiple inclined oblong holes evenly distributed, with the axis of the oblong holes forming an angle with the radial direction of the guide seat; one end of the adjusting guide seat is fixed inside the oblong holes and slidably connected to them; the other end of the adjusting guide seat is fixed with a pressure block; the base has the same number of fixed supports evenly distributed along the circumference as the adjusting guide seats, and the guide seat has the same number of movable supports evenly distributed along the circumference as the adjusting guide seats, which rotate together with the guide seat; a fixed support and a movable support form a group, arranged between every two adjacent adjusting guide seats, located on both sides of a support plate of the casing, clamping the support plate of the casing.

[0008] The guide seat has three limiting holes evenly distributed on it.

[0009] The guide seat includes a total of 17 waist-shaped holes.

[0010] A shim is provided between the adjusting guide seat and the pressure block. By adjusting the number of shims, it is ensured that the workpiece is in contact with the workpiece simultaneously and that the workpiece is clamped and supported evenly, thus ensuring the roundness of the outer ring.

[0011] The support plate is respectively attached to a fixed support and a movable support on both sides. The fixed support has a pressure head fixed on it, which is adjusted by shims to ensure that it contacts the support plate at the same time. The movable support has a pressure head fixed on it, which is adjusted by shims to ensure that it contacts the support plate at the same time.

[0012] The beneficial effects of this invention are:

[0013] The guide seat in the spoke-type casing welding flexible adaptive fixture provided by this invention realizes one-time tensioning and retraction, which improves the quality of tensioning, reduces the operator's skill requirements and labor intensity, and improves labor efficiency. Compared with the single-point adjustment tooling structure used in the prior art, it is more suitable for batch processing of parts. Attached Figure Description

[0014] Figure 1 A schematic diagram of the tooling for an existing spoke-type welding housing;

[0015] Figure 2 A schematic diagram of the fixture provided by the present invention;

[0016] Figure 3 A top view of the fixture provided by the present invention; Figure 4 This is a schematic diagram of the self-locking lead screw in the fixture provided by the present invention;

[0017] Figure 5 This is a schematic diagram of the fixed support in the clamp provided by the present invention;

[0018] Figure 6 This is a schematic diagram of the movable support in the clamp provided by the present invention;

[0019] Figure 7 This is a schematic diagram of the guide seat in the fixture provided by the present invention;

[0020] Figure 8 This is a schematic diagram of the adjusting guide seat in the fixture provided by the present invention;

[0021] Figure 9 This is a schematic diagram of the pressure block in the fixture provided by the present invention;

[0022] Figure 10 This is a schematic diagram of the limiting block in the fixture provided by the present invention;

[0023] in,

[0024] 1-Base, 2-Guide seat, 21-Oval hole, 22-Limiting hole, 3-Cover plate, 4-Adjusting guide seat, 5-Pressure block, 6-Fixed support, 7-Moving support, 8-Support plate, 9-Self-locking screw, 10-Limiting block, 11-Tightening screw, 12-Tensioning block, 13-Adjusting bolt, 14-Adjusting wedge. Detailed Implementation

[0025] To better explain and facilitate understanding of the present invention, the technical solution and effects of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] like Figure 2-3 As shown, a flexible adaptive fixture for welding spoke-type casings includes a base 1 and a guide seat 2. The casing is fixed around the base 1, and its axial movement is restricted by limiting blocks 10. The limiting blocks 10 are as follows: Figure 10 As shown; the base 1 and guide seat 2 are arranged coaxially, and a cover plate 3 is provided above the guide seat 2; multiple self-locking screws 9 are evenly distributed circumferentially between the base 1 and the guide seat 2, and the central axis of the threaded screw in the self-locking screw 9 makes an angle with the radial direction of the base 1; a fixing block at one end of the self-locking screw 9 is fixed on the base 1, and a fixing block at the other end is fixed on the bottom surface of the guide seat 2; the self-locking screw 9 is as follows Figure 4As shown, the guide seat 2 has multiple limiting holes 22 evenly distributed circumferentially. In this embodiment, three limiting holes 22 are included, and the fixing block at one end of the self-locking screw 9 is fixed in the limiting hole 22. Multiple inclined oblong holes 21 are evenly distributed circumferentially along the edge of the guide seat 2. The axis of the oblong hole 21 forms an angle with the radial direction of the guide seat 2. In this embodiment, a total of 17 oblong holes 21 are included. Figure 7 As shown; one end of the adjusting guide seat 4 is fixed inside the oblong hole 21 and is slidably connected to the oblong hole 21. The adjusting guide seat 4 is as follows: Figure 8 As shown; a pressure block 5 is fixed to the other end of the adjusting guide seat 4 for tensioning the casing, as shown in the figure; Figure 9 As shown. The threaded screw in the self-locking screw 9 rotates in the forward direction, driving the guide seat 2 to rotate through the fixed block on the guide seat 2. Since the waist-shaped hole 21 is inclined, one end of multiple adjusting guide seats 4 slides simultaneously in the waist-shaped hole 21, sliding from the direction near the central axis of the guide seat 2 towards the edge of the casing, thereby achieving one-time tensioning of the casing; a shim is provided between the adjusting guide seat 4 and the pressure block 5, and by adjusting the number of shims, it is ensured that the workpiece is contacted simultaneously and clamped and supported evenly, ensuring the roundness of the outer ring.

[0027] The base 1 has fixed supports 6 evenly distributed along its circumference, the same number as the adjusting guide seats 4, such as... Figure 5 As shown, the guide seat 2 has movable supports 7 evenly distributed along its circumference, the same number as the adjusting guide seat 4, such as... Figure 6 As shown, it rotates together with the guide seat 2; a fixed support 6 and a movable support 7 form a group, arranged between every two adjacent adjusting guide seats 4, located on both sides of a support plate 8 of the casing, clamping the support plate 8 of the casing; the two sides of the support plate 8 are respectively in contact with the fixed support 6 and the movable support 7, the fixed support 6 has a fixed pressure head, which is adjusted by shims to ensure that it contacts the support plate 8 at the same time; the movable support 7 has a fixed pressure head, which is adjusted by shims to ensure that it contacts the support plate 8 at the same time.

[0028] In use, the threaded screw in the self-locking screw 9 rotates in the forward direction, driving the guide seat 2 to rotate through the fixing block on the guide seat 2. Since the oblong hole 21 is inclined, one end of multiple adjusting guide seats 4 slides simultaneously in the oblong hole 21, sliding from the direction near the central axis of the guide seat 2 towards the edge of the casing, thereby achieving one-time tensioning of the casing through the 17 pressure blocks 5. When the self-locking screw 9 is rotated in the reverse direction, the guide seat 2 is driven to rotate through the fixing block on the guide seat 2. Since the oblong hole 21 is inclined, one end of multiple adjusting guide seats 4 slides simultaneously in the oblong hole 21, sliding from the direction near the edge of the casing towards the direction near the central axis of the guide seat 2, achieving one-time recovery.

Claims

1. A flexible adaptive fixture for welding spoke-type casings, characterized in that: The system includes a base and a guide seat. The casing is fixed around the base and its axial movement is restricted by limiting blocks. The base and guide seat are arranged coaxially. Multiple inclined self-locking screws are evenly distributed circumferentially between the base and guide seat. The central axis of the threaded screw in the self-locking screw forms an angle with the radial direction of the base. A fixing block at one end of the self-locking screw is fixed to the base, and a fixing block at the other end is fixed to the bottom surface of the guide seat. Multiple limiting holes are evenly distributed circumferentially on the guide seat, and the fixing block at one end of the self-locking screw is fixed within these limiting holes. Multiple inclined... The oblong hole has an angle between its axis and the radial direction of the guide seat. One end of the adjusting guide seat is fixed inside the oblong hole and slidably connected to it. A pressure block is fixed to the other end of the adjusting guide seat. The base has the same number of fixed supports as the adjusting guide seats evenly distributed along its circumference. The guide seat has the same number of movable supports evenly distributed along its circumference as the adjusting guide seats, which rotate together with the guide seat. A fixed support and a movable support form a group, which are arranged between every two adjacent adjusting guide seats and located on both sides of a support plate of the casing to clamp the support plate of the casing. The support plate is respectively attached to a fixed support and a movable support on both sides. The fixed support has a pressure head fixed on it, which is adjusted by shims to ensure that it contacts the support plate at the same time. The movable support has a pressure head fixed on it, which is adjusted by shims to ensure that it contacts the support plate at the same time.

2. The flexible adaptive fixture for welding spoke-type casings according to claim 1, characterized in that: The guide seat has three limiting holes evenly distributed on it.

3. The flexible adaptive fixture for welding spoke-type casings according to claim 1, characterized in that: The guide seat includes a total of 17 waist-shaped holes.

4. The flexible adaptive fixture for welding spoke-type casings according to claim 1, characterized in that: A shim is provided between the adjusting guide seat and the pressure block. By adjusting the number of shims, it is ensured that the workpiece is in contact with the workpiece simultaneously and that the workpiece is clamped and supported evenly, thus ensuring the roundness of the outer ring.

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