A semi-flexible space UV-curing resin auxiliary support fixture

Abstract

The invention discloses a semi-flexible space ultraviolet light-curing resin auxiliary support fixture, comprising an angle adjustment component and a support clamping component; the angle adjustment component comprises a lifting platform, a ball joint shaft, an end cover and a fixture base; the eccentric shaft is rotated to drive the circular slider to move axially, and the angle between the support surface of the fixture as a whole and the blade is adjusted through the ball joint; the support clamping component comprises a support plate, a light-transmitting plate, a first rubber sealing ring, a second rubber sealing ring, a first cavity, a second cavity, a Q glue injection port and a P air port, liquid light-curing glue is filled into the first cavity through the Q glue injection port, the light-curing glue changes from liquid to hard solid under the irradiation of an ultraviolet lamp, an annular support surface is formed between the support fixture and the blade, and the P port is evacuated at the same time, so that the second cavity forms a vacuum to generate a pulling force toward the support surface on the blade, and the blade is supported and clamped in a natural state. The invention provides a more accurate, efficient and safe support method.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing equipment, and is particularly suitable for processing large-scale aircraft engine blades, and specifically relates to a semi-flexible space ultraviolet light curing resin auxiliary supporting fixture. Background Art

[0002] The blades of large propellers are usually long and deep, and their overall rigidity is weak. When processing the surface of the blade, it is very easy to produce flutter, resulting in large chatter marks and joint marks, which brings great difficulties to the subsequent improvement of the surface quality of the blade. Because the blades are mostly complex curved surfaces that cannot be developed, and the surface of the blank is uneven, the existing support fixtures usually use hard rubber blocks to support the blades, so that the rubber is compressed to a certain extent to increase the contact area between the blades and the fixture as much as possible, thereby improving the rigidity of the blades. However, on the one hand, the pre-compression deformation of the rubber in this structure will cause the YP blades themselves to deform significantly, and on the other hand, the rubber itself is elastic and it is difficult to provide a good support strength for the blades. In order to solve the existing problems, the present application provides a semi-flexible space UV-curing resin auxiliary support fixture that can effectively solve the support problem of large propellers. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention discloses a semi-flexible spatial ultraviolet light-curing resin auxiliary support fixture to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a semi-flexible space UV-curable resin auxiliary support fixture, comprising an angle adjustment component and a support clamping component;

[0005] The angle adjustment assembly comprises a lifting platform, a ball joint shaft, an end cover and a clamp base; the lifting platform is used to adjust the height of the clamp as a whole, the ball joint shaft is fixedly installed on the lifting platform, the clamp base is located at the upper end of the ball joint shaft, and a circular sliding block is provided in the cavity inside the clamp base, and the circular sliding block slides linearly along the inside of the cavity, and an end cover is provided at the lower end of the clamp base, and the same end of the end cover and the circular sliding block both have ball and socket features, and form a match with the ball head at the upper end of the ball joint shaft. An eccentric shaft is provided in the clamp base, and the eccentric shaft is laterally inserted into the side wall of the clamp base, and the eccentric shaft is rotatably connected with the circular sliding block, and the circular sliding block is driven to move axially along the cavity in the clamp base by rotating the eccentric shaft. When in use, the angle between the supporting surface of the clamp as a whole and the blade is adjusted by the ball joint shaft, and the height of the supporting clamp is adjusted by the lifting platform;

[0006] The support clamping assembly includes a support plate, a light-transmitting plate, a first rubber sealing ring, a second rubber sealing ring, a first cavity, a second cavity, a Q glue injection port and a P air port. The support plate is located at the upper end of the fixture base, and the light-transmitting plate surrounds the upper end of the fixture base. A plurality of ultraviolet lamp beads are arranged inside the support plate, and the ultraviolet lamp beads surround the lower end of the light-transmitting plate. The first rubber sealing ring is located on the outside of the light-transmitting plate, and the second rubber sealing ring is located on the inside of the light-transmitting plate. The first rubber sealing ring cooperates with the second rubber sealing ring to form a first cavity after contacting with the blades, and the second rubber sealing ring contacts with the blades to form a second cavity. A wall surface on one side of the upper end of the support plate is provided with Q glue injection port, the Q glue injection port extends through the first cavity, the wall surface of one side of the clamp base is provided with a P air port, the P air port extends inwardly to the center position of the clamp base, and upwardly penetrates to the center position of the upper end of the support plate until it is mutually penetrated with the second cavity, the liquid light-curing glue is filled into the first cavity through the Q glue injection port, and the ultraviolet lamp bead is turned on, the light-curing glue changes from liquid to a hard solid under the irradiation of the ultraviolet lamp, after the light-curing glue is cured, an annular supporting surface is formed between the supporting clamp and the blade, so that the supporting clamp and the blade form a surface contact, and at the same time, the P port is evacuated, so that the second cavity forms a vacuum to generate a pulling force toward the supporting surface on the blade, and the blade is supported and clamped in a natural state.

[0007] Preferably, the end cover is fixed to the lower end surface of the clamp base by means of a plurality of first screws.

[0008] Preferably, the ball joint shaft, end cover, screw, fixture base, circular slider and eccentric shaft form a self-locking ball joint mechanism. The self-locking can be released by rotating the eccentric shaft, and the fixture base can be swung to any spatial angle within a certain range around the ball joint shaft. By rotating the eccentric shaft to a certain angle, the eccentric shaft pushes the circular slider to move downward along the cavity in the fixture base, so that the circular slider is pressed against the ball head of the ball joint shaft, thereby generating self-locking and locking the ball joint shaft.

[0009] Preferably, by rotating the eccentric shaft, the circular slider is driven to move upward along the cavity in the clamp base, so that the circular slider and the ball head of the ball joint shaft are pressed together. After the self-locking is released, the clamp base can swing around the ball joint shaft to any spatial angle within a certain range.

[0010] Preferably, a first shaft elastic retaining ring and a second shaft elastic retaining ring are respectively provided on both sides of the eccentric shaft, and the eccentric shaft is axially fixed on the fixture base through the first shaft elastic retaining ring and the second shaft elastic retaining ring.

[0011] Preferably, the support plate is fixed to the upper end of the clamp base by means of a plurality of second screws.

[0012] Preferably, the light-transmitting plate is made of organic glass or other light-transmitting materials, and a limiting ball pin is installed on it.

[0013] Preferably, the support plate and the fixture base are in contact with each other, and an O-ring is provided on the outside of the P air port channel.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention provides a semi-flexible spatial UV-curing resin auxiliary support fixture, the fixture support surface can adjust the position of the support surface in space, can form a rigid support with surface contact for the blade at the support position, and at the same time provide the blade with a pulling force along the normal of the support surface, which is opposite to the supporting force. The supporting force and the pulling force will stably support the blade in the original position.

[0016] 2. Through the design of the ball joint mechanism and the lifting platform, the support fixture of the present invention can be flexibly adjusted in three-dimensional space, so that the support surface and the blade can achieve the ideal docking parallelism and distance, thereby greatly improving the accuracy and reliability of the support.

[0017] 3. When supporting the blades, the support clamp of the present invention forms a uniform pressure distribution by fine-tuning the contact pressure between the support plate and the light-transmitting plate and the blades, combined with the micro-deformation of the sealing ring, thereby avoiding deformation or damage of the blades caused by excessive local stress that may be caused by traditional clamps. In addition, during the entire clamping and curing process, except for the slight deformation of the sealing ring, there are no other significant external forces acting on the blades, which is conducive to maintaining the original properties of the blades without damage and increasing their service life.

[0018] 4. The ultraviolet lamp beads installed in the support fixture of the present invention can ensure that the light-curing adhesive is evenly and completely cured in a short time, and forms a solid annular support surface after changing from liquid to solid, further enhancing the firm connection between the fixture and the blade. The use of ultraviolet light-curing adhesive instead of traditional chemical adhesives not only reduces pollution to the environment, but also reduces potential health risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0020] In the attached picture:

[0021] Figure 1 is an overall cross-sectional view of the support fixture of the present invention;

[0022] Numbers in the figure: 00, lifting platform; 01, ball joint shaft; 02, end cover; 03, first screw; 04, fixture base; 05, circular slider; 06, eccentric shaft; 07, elastic retaining ring for first shaft; 08, elastic retaining ring for second shaft; 09, support plate; 10, second screw; 11, ultraviolet lamp bead; 12, light-transmitting plate; 13, limit ball pin; 14, second rubber sealing ring; 15, O-ring; 16, light-curing glue; 17, first rubber sealing ring; 18, first cavity; 19, second cavity; 20, Q glue injection port; 21, P air port. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0024] Example: Figure 1 As shown, a semi-flexible space ultraviolet light curing resin auxiliary support fixture includes an angle adjustment component and a support clamping component;

[0025] The angle adjustment assembly includes a lifting platform 00, a ball joint shaft 01, an end cover 02 and a fixture base 04; the lifting platform 00 is used to adjust the height of the fixture as a whole, the ball joint shaft 01 is fixedly installed on the lifting platform 00, the fixture base 04 is located at the upper end of the ball joint shaft 01, and a circular slider 05 is provided in the cavity inside the fixture base 04, and the circular slider 05 slides linearly along the inside of the cavity, and an end cover 02 is provided at the lower end of the fixture base 04, and the end cover 02 is fixed by a plurality of first screws 03. Fixed on the lower end surface of the clamp base 04, the end cap 02 and the circular slider 05 have a ball-socket feature at the same end, which cooperates with the ball head at the upper end of the ball joint shaft 01. An eccentric shaft 06 is arranged in the clamp base 04, and the eccentric shaft 06 is horizontally inserted on the side wall of the clamp base 04. The first shaft elastic retaining ring 07 and the second shaft elastic retaining ring 08 are respectively arranged on both sides of the eccentric shaft 06. The eccentric shaft 06 is axially fixed to the clamp base through the first shaft elastic retaining ring 07 and the second shaft elastic retaining ring 08. 04, and the eccentric shaft 06 is rotatably connected with the circular slider 05 inside the clamp base 04, and the eccentric shaft 06 is rotated to drive the circular slider 05 to move axially along the cavity in the clamp base 04, and the ball joint shaft 01, the end cover 02, the first screw 03, the clamp base 04, the circular slider 05 and the eccentric shaft 06 form a self-locking ball joint mechanism, and after the eccentric shaft 06 is rotated to a certain angle, the eccentric shaft 06 pushes the circular slider 05 to move downward along the cavity in the clamp base 04, so that the circular slider 05 is pressed against the ball head of the ball joint shaft 01, thereby generating a self-locking effect to lock and fix the ball joint shaft 01. By rotating the eccentric shaft 06, the circular slider 05 is driven to move upward along the cavity in the fixture base 04, thereby making the circular slider 05 pressed against the ball head of the ball joint shaft 01. After releasing the self-locking effect, the fixture base 04 swings around the ball joint shaft 01 to any spatial angle within a certain range. When in use, the angle between the supporting surface of the fixture as a whole and the blade is adjusted through the ball joint shaft 01, and the height of the supporting fixture is adjusted through the lifting platform 00.

[0026] The support clamping assembly includes a support plate 09, a light-transmitting plate 12, a first rubber sealing ring 17, a second rubber sealing ring 14, a first cavity 18, a second cavity 19, a Q injection port 20, and a P air port 21. The support plate 09 is located at the upper end of the clamp base 04. The support plate 09 is fixed to the upper end of the clamp base 04 by a plurality of second screws 10. The light-transmitting plate 12 surrounds the upper end of the clamp base 04. The light-transmitting plate 12 is made of organic glass or other light-transmitting materials, and a limited ball pin 1 is installed on it. 3. A plurality of ultraviolet lamp beads 11 are arranged inside the support plate 09, and the ultraviolet lamp beads 11 are arranged around the lower end of the light-transmitting plate 12. The first rubber sealing ring 17 is arranged outside the light-transmitting plate 12, and the second rubber sealing ring 14 is arranged inside the light-transmitting plate 12. The first rubber sealing ring 17 cooperates with the second rubber sealing ring 14 to form a first cavity 18 after contacting with the blades, and the second rubber sealing ring 14 forms a second cavity 19 after contacting with the blades. The wall surface of one side of the upper end of the support plate 09 A Q glue injection port 20 is provided, and the Q glue injection port 20 extends through the first cavity 18. A P air port 21 is provided on one side wall of the clamp base 04. The P air port 21 extends inwardly to the center of the clamp base 04, and upwardly penetrates to the center of the upper end of the support plate 09 until it is mutually penetrated with the second cavity 19. The support plate 09 and the clamp base 04 are mutually fitted, and an O-ring 15 is provided on the outer side of the P air port 21 channel, and the support plate 09 and the clamp base 04 are sealed by the O-ring 15. The P air port 21 channel is sealed; the liquid light-curing glue 16 is filled into the first cavity 18 through the Q glue injection port 20, and the ultraviolet lamp bead 11 is turned on. The light-curing glue 16 changes from liquid to hard solid under the irradiation of the ultraviolet lamp. After the light-curing glue 16 is cured, an annular supporting surface is formed between the supporting fixture and the blade, so that the supporting fixture and the blade form surface contact. At the same time, the P air port 21 is evacuated to form a vacuum in the second cavity 19, which generates a pulling force toward the supporting surface on the blade, and the blade is supported and clamped in a natural state.

[0027] When in use, the angle between the clamp support surface and the blade YP is adjusted to be roughly parallel through the ball joint shaft 01, the height of the clamp support clamp is adjusted through the lifting platform 00, and the movement of the circular slider 05 is controlled through the eccentric shaft 06, thereby adjusting the self-locking or unlocking of the angle rotation of the clamp base 04, so that the clamp base 04 can swing to any spatial angle within a certain range around the ball joint shaft 01, and then the second rubber sealing ring 14 of the supporting clamp and the second rubber sealing ring 14 are brought into contact with the blade YP and slightly deformed, and a first cavity 18 and a second cavity 19 in a sealed state are formed, the light-curing glue 16 is filled into the first cavity 18 through the Q glue injection port 20, the ultraviolet lamp bead 11 is turned on, and the light-curing glue 16 is irradiated by the ultraviolet lamp. The liquid turns into a hard solid. After the light-curing adhesive 16 is cured, an annular supporting surface is formed between the supporting fixture and the blade YP, so that the supporting fixture and the blade YP are in surface contact, and the P air port 21 is evacuated to form a vacuum in the second cavity 19 to generate a pulling force toward the supporting surface on the blade YP. At this point, one supporting position of the blade YP is supported. Except for the sealing deformation of the sealing ring that generates external stress on the blade YP, no other external stress is introduced during the entire supporting process of the blade YP. The blade YP is supported and clamped in a natural state. It should be noted that in the process of supporting and clamping the blade, the external stress introduced to the blade is very small compared to the rubber pre-pressure of the existing supporting fixture, and can even be ignored.

[0028] Finally, it should be noted that the above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A semi-flexible space UV-curable resin auxiliary support fixture, characterized in that: It includes an angle adjustment component and a support clamping component; The angle adjustment assembly comprises a lifting platform, a ball joint shaft, an end cover and a clamp base; the lifting platform is used to adjust the height of the clamp as a whole, the ball joint shaft is fixedly installed on the lifting platform, the clamp base is located at the upper end of the ball joint shaft, and a circular sliding block is provided in the cavity inside the clamp base, and the circular sliding block slides linearly along the inside of the cavity, and an end cover is provided at the lower end of the clamp base, and the same end of the end cover and the circular sliding block both have ball and socket features, which cooperate with the ball head at the upper end of the ball joint shaft. An eccentric shaft is provided in the clamp base, and the eccentric shaft is laterally inserted into the side wall of the clamp base, and the eccentric shaft is rotatably connected with the circular sliding block, and the circular sliding block is driven to move axially along the cavity in the clamp base by rotating the eccentric shaft. When in use, the angle between the supporting surface of the clamp as a whole and the blade is adjusted through the ball joint shaft; The support clamping assembly includes a support plate, a light-transmitting plate, a first rubber sealing ring, a second rubber sealing ring, a first cavity, a second cavity, a Q glue injection port and a P air port. The support plate is located at the upper end of the fixture base, and the light-transmitting plate surrounds the upper end of the fixture base. A plurality of ultraviolet lamp beads are arranged inside the support plate, and the ultraviolet lamp beads surround the lower end of the light-transmitting plate. The first rubber sealing ring is located on the outside of the light-transmitting plate, and the second rubber sealing ring is located on the inside of the light-transmitting plate. The first rubber sealing ring cooperates with the second rubber sealing ring to form a first cavity after contacting with the blades, and the second rubber sealing ring contacts with the blades to form a second cavity. A wall surface on one side of the upper end of the support plate is provided with Q glue injection port, the Q glue injection port extends through the first cavity, the wall surface of one side of the clamp base is provided with a P air port, the P air port extends inwardly to the center position of the clamp base, and upwardly penetrates to the center position of the upper end of the support plate until it is mutually penetrated with the second cavity, the liquid light-curing glue is filled into the first cavity through the Q glue injection port, and the ultraviolet lamp bead is turned on, the light-curing glue changes from liquid to a hard solid under the irradiation of the ultraviolet lamp, after the light-curing glue is cured, an annular supporting surface is formed between the supporting clamp and the blade, so that the supporting clamp and the blade form a surface contact, and at the same time, the P port is evacuated, so that the second cavity forms a vacuum to generate a pulling force toward the supporting surface on the blade, and the blade is supported and clamped in a natural state.

2. The semi-flexible space UV-curable resin auxiliary support fixture according to claim 1, characterized in that: The end cover is fixed on the lower end surface of the clamp base by a plurality of first screws.

3. The semi-flexible space UV-curable resin auxiliary support fixture according to claim 1, characterized in that: By rotating the eccentric shaft to a certain angle, the eccentric shaft pushes the circular slider to move downward along the cavity in the clamp base, so that the circular slider and the ball head of the ball joint shaft are pressed tightly, thereby generating self-locking to lock and fix the ball joint shaft.

4. The semi-flexible space UV-curable resin auxiliary support fixture according to claim 3, characterized in that: By rotating the eccentric shaft, the circular slider is driven to move upward along the cavity in the clamp base, so that the circular slider and the ball head of the ball joint shaft are pressed together. After the self-locking is released, the clamp base can swing around the ball joint shaft to any spatial angle within a certain range.

5. The semi-flexible space UV-curable resin auxiliary support fixture according to claim 4, characterized in that: A first shaft elastic retaining ring and a second shaft elastic retaining ring are respectively provided on both sides of the eccentric shaft, and the eccentric shaft is axially fixed on the clamp base through the first shaft elastic retaining ring and the second shaft elastic retaining ring.

6. The semi-flexible space UV-curable resin auxiliary support fixture according to claim 1, characterized in that: The support plate is fixed to the upper end of the clamp base through a plurality of second screws.

7. The semi-flexible space UV-curable resin auxiliary support fixture according to claim 1, characterized in that: The light-transmitting plate is made of organic glass or other light-transmitting materials, and a limiting ball pin is installed on it.

8. The semi-flexible space UV-curable resin auxiliary support fixture according to claim 1, characterized in that: The support plate and the fixture base are in contact with each other, and an O-ring is provided on the outside of the P air port channel.

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