Liftable supporting device

Abstract

The utility model discloses a liftable supporting device, which comprises a base, a lifting device, a lifting device, a lifting device, a lifting device and a lifting device, and is characterized in that the base is provided with a flat bottom surface and an upper surface opposite to the bottom surface; the sleeve is vertically mounted on the upper surface of the base and is provided with an upper end far away from the base and a lower end connected to the base; the supporting rod is sleeved with the sleeve in a telescopic mode and extends upwards from the upper end of the sleeve, and therefore the supporting rod can stretch out of the sleeve or retract into the sleeve along the axis of the sleeve; and the supporting assembly is constructed to be capable of supporting a to-be-supported object at the top of the supporting assembly and is connected with the supporting rod through a universal joint, so that the angle between the longitudinal extension axis of the supporting assembly and the longitudinal extension axis of the sleeve can be adjusted.

Description

Technical Field

[0001] The utility model relates to a liftable support device, in particular to a liftable support device used for fixing a thermocouple insulation layer on the back side of a composite material molding tool. Background Art

[0002] Composite materials are increasingly used in civil aircraft at home and abroad. For example, Boeing and Airbus have adopted composite structural parts on a large scale in the process of developing a new generation of large passenger aircraft, and have used the amount of composite materials as an important competitive indicator to further improve the competitiveness of their products. The composite application parts of domestic passenger aircraft have also expanded from secondary load-bearing structural parts such as the rudder and leading edge of the aircraft to main load-bearing structural parts such as wings and fuselage. At present, in the manufacturing process of composite parts of domestic large passenger aircraft, it is necessary to carry out heat distribution tests on parts in advance to find the leading and lagging thermocouples of the parts to ensure that the parts are cured within the temperature and time range required by the specifications. If the lagging thermocouple is within the net size of the part, it is often necessary to arrange the thermocouple on the back of the tooling according to the requirements of the specifications, and cover the thermocouple on the back of the tooling with insulation layers of different thicknesses to select a tooling thermocouple that is as close as possible to the lagging thermocouple of the part to achieve equivalent substitution.

[0003] Depending on the parts, the combined weight of the insulation layer and thermocouple placed on the back of the tooling often exceeds 300g, and often even reaches more than 500g. In the past, the insulation layer was mainly fixed by high-temperature tape, but it often fell off, resulting in a large loss of parts scrap every year. This is mainly due to two reasons. First, the overall surface cleanliness and roughness of the back of the tooling are relatively poor, which cannot meet the reliable adhesion of the tape. If higher cleanliness and roughness requirements are imposed on the back of the tooling, it will greatly increase the manufacturing difficulty and increase the manufacturing cost; second, the existing high-temperature adhesive tape cannot effectively and reliably fix heavier objects, especially under the high temperature, high pressure and high-speed airflow of the autoclave. The height of the composite molding tool is different and the shape is diverse. For example, the height varies from 80mm to 1200mm, and the positions to be supported include the bottom and side of the curved wall panel, the side of the large slope, the bottom and side of the arc, etc. In addition, the state of the back of the composite molding tool is not completely consistent. Therefore, considering economic cost, processing efficiency and reliability, it is necessary to design a fast, detachable and liftable support device that can adapt to various composite material molding tooling forms and can achieve reliable fixation of the thermocouple insulation layer on the back of the tooling. Utility Model Content

[0004] Therefore, the utility model provides a liftable support device, which can meet the support requirements of objects of various heights and shapes, has wide applicability, high support reliability, adjustable support angle, and convenient assembly and disassembly.

[0005] To this end, the utility model provides a liftable support device, the liftable support device comprising:

[0006] A base having a flat bottom surface and an upper surface opposite to the bottom surface;

[0007] a sleeve, the sleeve being vertically mounted on the upper surface of the base and having an upper end away from the base and a lower end connected to the base;

[0008] a support rod, which is telescopically sleeved in the sleeve and extends upward from the upper end of the sleeve, so that the support rod can extend from the sleeve or retract into the sleeve along the axis of the sleeve; and

[0009] A support assembly is configured to support an object to be supported on its top and is connected to the support rod via a universal joint so that the angle between the longitudinal extension axis of the support assembly and the longitudinal extension axis of the sleeve can be adjusted.

[0010] According to an embodiment of the present invention, the liftable support device further comprises an adjusting member, which is arranged on the wall of the sleeve and is configured to fix the position of the support rod relative to the sleeve by a screwing action.

[0011] According to one embodiment of the utility model, the universal joint includes a ball seat, a fastener and a ball head rod, wherein the ball seat includes: a lower portion connected to a support rod by a threaded engagement; and an upper portion of a spherical member connected to the fastener by a threaded engagement and accommodating the ball head rod internally, wherein the upper portion has a pair of grooves so that when the fastener is connected to the upper portion, the upper portion can be radially contracted to clamp the ball head member of the ball head rod.

[0012] According to an embodiment of the present utility model, the support assembly includes one selected from the following support parts: a flat plate support part, an inclined plate support part, a ball head support part and a clamp support part.

[0013] According to an embodiment of the utility model, the liftable support device further comprises a magnet adsorption fixer connected to the base by magnetic force to fix the liftable support device.

[0014] According to an embodiment of the present utility model, the support rod comprises a plurality of segmented support rods, each of the plurality of segmented support rods being configured to be connectable to other segmented support rods by threaded connection.

[0015] According to an embodiment of the present invention, the support assembly is configured to be replaceable according to the weight of the object to be supported, and the shape and size of the support surface.

[0016] On the basis of conforming to the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present utility model.

[0017] The positive and progressive effects of the above-mentioned embodiments of the utility model are:

[0018] The liftable support device of the utility model can provide reliable lifting support for the thermocouple and the insulation layer on the back of the composite material molding tool, so that the supported object can be ensured not to fall off in various situations such as the bottom and side of the curved wall panel tool, the side of the large slope tool, and the bottom and side of the arc-shaped tool. The liftable support device can meet the support requirements of objects of various heights and shapes, has wide applicability, high support reliability, adjustable support angle, and convenient disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of a liftable support device according to a preferred embodiment of the utility model.

[0020] Figure 2a-2c It is a schematic diagram of a magnet adsorption fixer of a liftable support device according to a preferred embodiment of the utility model.

[0021] Figure 3 It is a schematic diagram of a sleeve of a liftable support device according to a preferred embodiment of the utility model.

[0022] Figure 4a It is a schematic diagram of a support rod of a liftable support device according to a preferred embodiment of the utility model.

[0023] Figure 4b It is a schematic exploded view of a support rod of a liftable support device according to a preferred embodiment of the utility model.

[0024] Figure 5a It is a schematic diagram of a universal joint of a liftable support device according to a preferred embodiment of the utility model.

[0025] Figure 5b It is a schematic exploded view of a universal joint of a liftable support device according to a preferred embodiment of the utility model.

[0026] Figure 6a-6d It is a schematic diagram of various support components of a liftable support device according to a preferred embodiment of the utility model.

[0027] Figure 7 It is a schematic diagram of the application of the liftable support device according to the preferred embodiment of the utility model.

[0028] Description of reference numerals:

[0029] 1: Base

[0030] 2: Sleeve

[0031] 3: Support rod

[0032] 4: Universal joint

[0033] 5: Support components

[0034] 6: Butterfly screw

[0035] 1-1: Magnetic adsorption fixture

[0036] 3-1: Segmented support rod

[0037] 3-2: Segmented support rod

[0038] 4-1: Tee

[0039] 4-2: Fastener

[0040] 4-3: Ball head DETAILED DESCRIPTION

[0041] The preferred embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings of the specification. The following description is exemplary and not a limitation of the present invention. Any other similar situations also fall within the protection scope of the present invention.

[0042] In the following detailed description, directional terms, such as "left", "right", "up", "down", "front", "back", etc., are used with reference to the directions described in the drawings. The components of the embodiments of the present invention can be placed in a variety of different directions, and the directional terms are used for illustrative purposes rather than limiting.

[0043] During the curing and molding process of composite materials, in order to effectively support the lagging thermocouples and insulation layers on the back of various forms of composite material molding tools and ensure that the thermocouples and their insulation layers do not fall off, the utility model designs a liftable support device suitable for various composite material molding tools. Figure 1 This is a schematic diagram of a liftable support device according to a preferred embodiment of the utility model. As shown in the figure, the liftable device is mainly composed of a base 1, a sleeve 2, a support rod 3, a universal joint 4, a support assembly 5 and a butterfly screw 6 to meet the support requirements of various heights and shapes.

[0044] The base 1 has a plate shape, preferably a disc shape. The base 1 includes a flat bottom surface and an upper surface opposite to the bottom surface. An annular flange is provided at the center of the upper surface of the base 1, and the inner surface of the annular flange has a thread. The base 1 is mainly used to achieve a stable support for the entire liftable device, and can be connected to the magnet adsorption fixture 1-1.

[0045] Figure 2a-2c Schematic diagram of a magnet adsorption fixture of a liftable support device according to a preferred embodiment of the utility model. As shown in the figure, the magnet adsorption fixture contains a magnet, which can adsorb and fix the base 1 placed on the magnet adsorption fixture through magnetic force. For example, Figure 2a As shown, when the handle of the magnet adsorption fixture 1-1 is rotated to the left, the magnetic force between the magnet adsorption fixture 1-1 and the base 1 disappears, and the base 1 can be easily removed. Figure 2b As shown, when the handle of the magnet adsorption fixture 1-1 is rotated to the right, the magnet adsorption fixture 1-1 can adsorb the base 1 by magnetic force, thereby fixing the base 1. Therefore, the magnet adsorption fixture is connected to the base by magnetic force to fix the liftable support device. Optionally, the base 1 can be placed directly on a support surface such as the ground. Because the lower operability space of the composite material molding tool is limited, the size of the base should not be too large, and in order to maintain the liftable device, the base should not be too light, so the base can include slightly heavier materials such as iron or steel.

[0046] The base 1 is also used for threaded connection with the upper sleeve 2. Figure 1 As shown, the sleeve 2 has an upper end away from the base and a lower end connected to the base. The lower end of the sleeve 2 is connected to the annular flange of the base 1 by threading. The upper end of the sleeve 2 accommodates the support rod 3. The axis of the sleeve 2 is perpendicular to the upper surface of the base 1 so as to be vertically mounted on the upper surface of the base 1.

[0047] Figure 3 The figure is a schematic diagram of a sleeve of a liftable support device according to a preferred embodiment of the utility model. As shown in the figure, the sleeve 2 includes a tubular structure, and includes a connection port connected to the butterfly screw 6 through a thread at the tube wall near its upper end. The sleeve 2 is mainly used to guide the internal support rod 3 to move up and down. The sleeve 2 is connected to the base 1 and the butterfly screw 6 through a threaded interface. In order to improve the reliability of the threaded connection and avoid thread wear after repeated use, the sleeve 2 is made of iron or steel. Figure 1 As shown, the butterfly screw 6 is screwed to squeeze the support rod 3 in the sleeve 2, thereby fixing the position of the support rod 3 relative to the sleeve 2. Considering the convenience of manual operation by maintenance personnel, the dish-shaped head of the butterfly screw 6 increases the torque of manual screwing to make the operation easier.

[0048] Figure 4a Schematic diagram of the support rod of the liftable support device according to the preferred embodiment of the utility model. Figure 4bAs shown, the support rod 3 includes a lower main support rod 3-1 and a segmented support rod 3-2 connected thereto. The upper end face of the main support rod 3-1 has a threaded hole to accommodate a threaded joint extending from the lower end face of the segmented support rod 3-2. Similarly, the upper end face of the segmented support rod 3-2 can also be provided with a threaded hole to accommodate a threaded joint extending from the lower end face of another segmented support rod. That is, the segmented support rod 3-2 can be connected to other segmented support rods by threaded connection. By increasing the number of segmented support rods 3-2, support for a composite material molding tooling structure with a larger tooling height can be achieved. Optionally, the support rod 3 is a single support rod.

[0049] The support rod 3 is accommodated in the sleeve 2 via the upper end of the sleeve 2, and the support rod 3 can be freely lifted and lowered in the sleeve 2. Therefore, the support rod 3 is telescopically sleeved in the sleeve 2 and extends upward from the upper end of the sleeve 2, so that the support rod 3 can extend from the sleeve or retract into the sleeve 2 along the axis of the sleeve 2 to achieve the lifting function of the support assembly 5. Since the support rod 3 is relatively high, the weight should not be too heavy, and it needs to be squeezed by the end of the butterfly screw 6 to maintain the height, therefore, the support rod 3 is made of light metal or high temperature resistant plastic. For example, the support rod 3 can be made of aluminum alloy.

[0050] Figure 5a Schematic diagram of a universal joint of a liftable support device according to a preferred embodiment of the utility model. Figure 5bAs shown, the universal joint 4 is mainly composed of a ball seat 4-1, a fastener 4-2 and a ball head rod 4-3. The ball seat 4-1 has a shape similar to a screw as a whole, including a lower part with an external thread, which is connected to the support rod 3 by an external thread. The ball seat 4-1 also includes an upper part with a circumferential wall, the outer part of which has a thread and the inner circumference is spherically hollow. The upper part is connected to the fastener 4-2 by an external thread, and the spherical hollow interior accommodates the spherical member of the ball head rod 4-3 to achieve reliable connection and free rotation of the ball head rod 4-3. The upper part of the ball seat 4-1 has a pair of grooves extending from the top of the circumferential wall toward the lower part along the axis of the lower part of the ball seat, so that when the fastener 4-2 is threadedly connected to the upper part, as the fastener 4-2 rotates, the circumferential wall of the upper part is radially compressed to clamp the ball head member of the ball head rod 4-3. Optionally, the groove includes a plurality of grooves evenly distributed along the circumferential wall. The fastener 4-2 includes an internal threaded interface. As described above, the upper circumferential wall with grooves of the ball seat 4-1 is compressed inwardly by connecting with the external thread of the upper part of the ball seat 4-1, thereby clamping and fixing the ball head rod 4-3 to fix the orientation of the ball head rod 4-3. The ball head rod 4-3 includes a spherical member and a rod extending from the spherical member and having an external thread. The spherical member is accommodated in the upper part of the ball seat 4-1, and the rod extending from the spherical member is connected to the support assembly 5 through an external thread. The ball head rod 4-3 can achieve free angular rotation, so that the liftable support device is adapted to various tooling forms.

[0051] The universal joint 4 can be used to adjust the support angle of the support assembly 5. Composite material molding tooling has various structural forms, and the use of the universal joint 4 is helpful to achieve support for the non-planar part of the composite material molding tooling.

[0052] Figure 6a-6d It is a schematic diagram of various support assemblies of the liftable support device according to the preferred embodiment of the utility model. As shown in the figure, the support assembly 5 has a connecting portion and a supporting portion connected thereto. The connecting portion is connected to the external thread of the ball head rod 4-3 of the universal joint 4 through a thread, and then connected to the support rod 3, so that the angle between the longitudinal extension axis of the connecting portion and the longitudinal extension axis of the sleeve 2 can be adjusted, that is, the support angle of the support assembly 5 can be adjusted. Therefore, the support assembly 5 can be replaced quickly and conveniently, so as to meet the matching requirements of various composite tooling configurations, and meet the special placement requirements of the lagging thermocouple and the insulation layer on the back of the composite tooling.

[0053] The support part has a plurality of anti-skid texture feature structures to support the object to be supported in an anti-skid manner. The support part has a variety of replaceable forms, such as a flat plate support part, an inclined plate support part, a ball head support part, a clamp support part, etc. Therefore, the support assembly can be replaced according to the weight of the object to be supported, the shape and size of the support surface. Figure 6aAs shown, the flat support part is disk-shaped as a whole, has a plurality of hollow recesses to reduce weight, and its top surface is perpendicular to the axis of the connecting part. Figure 6b As shown, the inclined plate type support portion is similar to the flat plate type support portion, except that its top surface is inclined relative to the axis of the connecting portion. Figure 6c As shown, the ball-head support portion includes a flange with anti-slip texture features on the circumferential surface and a hemispherical component centered on the axis of the connecting portion. In particular, as Figure 6d As shown, the clamp-type support part includes a clamp with adjustable size, so that the clamp can clamp objects to be supported of various sizes. Therefore, the clamp-type support part has a wider adaptability and can meet the clamping requirements of various sizes. The support part is used to support a composite tooling lagging thermocouple and its insulation layer with a certain weight.

[0054] Figure 7 The utility model takes the lagging thermocouple and its insulation layer on the back of the composite material forming tooling as an example, and the specific implementation is as follows.

[0055] First, according to the shape of the back of the tooling and the weight and size of the lagging thermocouple to be supported and its insulation layer, a suitable support assembly 5 is selected and connected to the ball rod 4-3 of the universal joint 4. In addition, according to the height of the tooling and the height of the object to be supported, a suitable number of segmented support rods 3-2 are selected and screwed to the support rod 3 to meet the height adjustment requirements.

[0056] Arrange the liftable support device under the composite material molding tool. Specifically, the base 1 is directly placed on the platform or magnet adsorption fixture under the composite material molding tool. Optionally, a suitable amount of weight can be placed on the base 1 to ensure its stability, and finally the liftable support device is placed as a whole under the composite material molding tool. Then loosen the butterfly screw 6 so that the support rod 3 can slide freely in the sleeve 2.

[0057] The fastener 4-2 of the universal joint 4 is rotated, and then the ball head rod 4-3 is rotated to ensure that the support part can fit closely to the lagging thermocouple and its insulation layer to be supported, and the support part is pressed against the back of the lagging thermocouple and its insulation layer. Then, the ball seat 4-1 and the fastener 4-2 are tightened to lock the position of the ball head rod 4-3.

[0058] Finally, when the support part is in close contact with the lagging thermocouple to be supported and its insulation layer, the support rod 3 is adjusted to a suitable height, the butterfly screw 6 is used to squeeze the support rod 3, and ensure that the components of the lifting device are connected reliably and firmly.

[0059] The utility model reliably fixes the lagging thermocouple and its insulation layer on the back of the composite material forming tooling by reasonably designing a liftable support device, and considering the various configuration characteristics of the composite material forming tooling, a multifunctional adjustment mechanism is also introduced when designing the liftable support device, so as to ensure that the liftable support device has high adaptability and convenient operation. However, the liftable support device described in the utility model can also be used for various other objects to be supported. Specifically, a suitable support assembly 5 is selected according to the characteristics of the object to be supported and connected to the universal joint 4. The height adjustment function is achieved by moving the support rod 3 in the sleeve 2 up and down. In addition, the additional height adjustment requirements can be met by increasing the number of segmented support rods 3-2. The support angle is adjusted by rotating the ball head rod 4-3 on the upper part of the universal joint 4 to adapt to various tooling configurations. After the support angle is adjusted, the fastener 4-2 is twisted to clamp and fix the ball head rod 4-3. After determining the height of the support rod, the butterfly screw 6 can be used to squeeze and fix the support rod 3, so as to achieve effective support for the object to be supported. In addition, the base 1 and the sleeve 2 serve as important lower connecting structures, which not only play a supporting role but also have a connecting function with the special structure.

[0060] The beneficial technical effects of the above preferred embodiments of the utility model are as follows: the device can provide reliable lifting support for the thermocouple and its insulation layer on the back of the composite material molding tooling, and the device can ensure that the supported object does not fall off in various situations such as the bottom and side of the curved wall panel tooling, the side of the large slope tooling, and the bottom and side of the arc-shaped tooling. The lifting support device can meet the support requirements of objects of various heights and shapes, has wide applicability, high support reliability, adjustable support angle, and convenient disassembly and assembly.

[0061] Although the specific embodiments of the present invention are described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications fall within the protection scope of the present invention.

Claims

1. A liftable support device, characterized in that: The liftable support device comprises: A base having a flat bottom surface and an upper surface opposite to the bottom surface; a sleeve, the sleeve being vertically mounted on the upper surface of the base and having an upper end away from the base and a lower end connected to the base; a support rod, which is telescopically sleeved in the sleeve and extends upward from the upper end of the sleeve, so that the support rod can extend from the sleeve or retract into the sleeve along the axis of the sleeve; and A support assembly is configured to support an object to be supported on its top and is connected to the support rod via a universal joint so that the angle between the longitudinal extension axis of the support assembly and the longitudinal extension axis of the sleeve can be adjusted.

2. The liftable support device according to claim 1, characterized in that: An adjusting member is also included, which is disposed on the wall of the sleeve and is configured to fix the position of the support rod relative to the sleeve by a screwing action.

3. The liftable support device according to claim 1, characterized in that: The universal joint includes a ball seat, a fastener and a ball head rod, wherein the ball seat includes: a lower portion connected to the support rod by a threaded engagement; and an upper portion connected to the fastener by a threaded engagement and accommodating a spherical member of the ball head rod internally, wherein the upper portion has a pair of grooves so that when the fastener is connected to the upper portion, the upper portion can be radially contracted to clamp the ball head member of the ball head rod.

4. The liftable support device according to claim 1, characterized in that: The support assembly includes one selected from the following support parts: a flat plate support part, an inclined plate support part, a ball head support part and a clamp support part.

5. The liftable support device according to claim 1, characterized in that: It also includes a magnet adsorption fixer connected to the base through magnetic force to fix the liftable support device.

6. The liftable support device according to claim 1, characterized in that: The support rod comprises a plurality of segmented support rods, each of which is configured to be connectable with other segmented support rods through a threaded connection.

7. The liftable support device according to claim 4, characterized in that: The support assembly is configured to be replaceable according to the weight of the object to be supported and the shape and size of the support surface.

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