A high-precision clamping device for carbon-carbon composite cylindrical embryo

Abstract

The present invention discloses a high-precision clamping device for a carbon-carbon composite cylindrical embryo, which belongs to the technical field of carbon-carbon composite product processing. It includes a supporting base plate, a rotating base plate is arranged on the supporting base plate, a group of symmetrical first side plates and a group of symmetrical second side plates are arranged on the outer ring of the supporting base plate, a multi-layer sliding through hole is arranged in an array on the second side plate, and a limiting member is movably arranged in the sliding through hole; a push rod is hinged on the top outer side of the second side plate, a mounting block is arranged on the bottom outer side of the second side plate, and a limiting part is arranged on the mounting block to limit the bottom of the push rod; a clamping device is arranged above the first side plate and the second side plate, and the clamping device includes a double-headed cylinder, the tail ends of the piston rods on both sides of the double-headed cylinder are connected to clamping plates, the double-headed cylinders are connected by connecting columns, and a lifting ring is arranged on the top of the connecting column.

Description

Technical Field

[0001] The invention relates to the technical field of carbon-carbon composite material product processing, and in particular to a high-precision clamping device for a carbon-carbon composite material cylindrical embryo. Background Art

[0002] Carbon / carbon composites are made up of three different components, namely resin carbon, carbon fibers and pyrolytic carbon. Since it is almost entirely composed of elemental carbon, it can withstand extremely high temperatures and extremely high heating rates. Through the proper orientation and reinforcement of carbon fibers, materials with excellent mechanical properties can be obtained, which remain unchanged or even improve certain performance indicators at high temperatures. Carbon / carbon composites have strong resistance to thermal shock and thermal conductivity, and have a certain degree of chemical inertness.

[0003] During the molding process of carbon / carbon composite products, it is necessary to Figure 1 The cylindrical embryos 100 shown are stacked and clamped and then processed uniformly. The side wall of the cylindrical embryos 100 is provided with a semicircular notch 200. When stacking the cylindrical embryos 100, the position accuracy of each layer needs to be ensured. In the past, a marker was used to mark a specific position on the side wall of the cylindrical embryos 100, and then each layer of products was aligned manually with a crane. However, this method is difficult to ensure the position accuracy of each layer of products, and the alignment process is relatively troublesome and inefficient. Summary of the invention

[0004] The purpose of the present invention is to address the above problems and provide a high-precision clamping device for carbon-carbon composite cylindrical embryos. The product is limited by rotating the bottom plate to cooperate with the side plate assembly, and the product is clamped and stacked by a clamping device. A limiting piece is provided on the side wall assembly to cooperate with the notch of the product to accurately limit the cylindrical embryo, thereby ensuring the accuracy of the position of each layer of the product.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: a high-precision clamping device for a carbon-carbon composite cylindrical embryo, comprising a supporting base plate, a rotating base plate is arranged on the supporting base plate, a group of symmetrical first side plates and a group of symmetrical second side plates are arranged on the outer ring of the supporting base plate, a multi-layer sliding through hole is arranged in an array on the second side plate, and a limiting member is movably arranged in the sliding through hole; a push rod is hinged on the top outer side of the second side plate, a mounting block is arranged on the bottom outer side of the second side plate, and a limiting portion is arranged on the mounting block to limit the bottom of the push rod; a clamping device is arranged above the first side plate and the second side plate, and the clamping device comprises a double-headed cylinder, the tail ends of the piston rods on both sides of the double-headed cylinder are connected with clamping plates, the double-headed cylinders are connected by connecting columns, and a lifting ring is arranged on the top of the connecting column.

[0006] Furthermore, the first side plate and the second side plate are staggered, and a limit plate is arranged between the first side plate and the second side plate; the rotating base plate is connected to the bearing supporting the base plate.

[0007] Furthermore, the cross section of the sliding through hole is semicircular, the limiting member is a columnar structure and its cross section is also semicircular, and the limiting member is located on the outer part of the second side plate and a limiting groove is provided, and the limiting groove corresponds to the position of the push rod.

[0008] Furthermore, the bottom surface of the limiting groove is an inclined structure, and the width of the limiting groove is greater than the width of the push rod.

[0009] Furthermore, the push rod and each limiting member are connected by a soft rope.

[0010] Furthermore, the limiting parts on the mounting block are upper and lower through holes, and the bottom of the push rod is located in the upper and lower through holes and is limited; the side wall of the mounting block is provided with a penetrating strip through hole, and a butterfly stud is arranged in the strip through hole, and the butterfly stud is fixedly connected to the mounting block with a bolt.

[0011] Furthermore, the clamping plate includes a connecting vertical plate, a top of one side of the connecting vertical plate is connected to a supporting top plate, a bottom of the other side of the connecting vertical plate is connected to a lifting bottom plate, and the connecting vertical plate is connected to the piston rod of the double-headed cylinder.

[0012] Furthermore, the side wall of the connecting vertical plate is connected to the piston rod of the double-headed cylinder via a spring; and the supporting top plate is supported by the connecting column.

[0013] Furthermore, a horizontally arranged top plate is provided on the connecting column, the top plate is located above the double-headed cylinder, and the supporting top plate is supported by the top plate.

[0014] Furthermore, a limiting protrusion is arranged on the side wall of the connecting vertical plate, the limiting protrusion is located on the side opposite to the supporting top plate, and the cross section of the limiting protrusion is a semicircular structure.

[0015] Beneficial effects of the present invention:

[0016] In order to solve the problem of excessive displacement of the product when the cylindrical embryo is clamped during product extraction, a limiting measure is set on the clamping device, and the feature of the notch on the side wall of the cylindrical embryo is ensured to ensure the consistency of the position during clamping and the consistency of subsequent stacking operations. The clamping device drives the clamping plate to extract the cylindrical embryo placed on the bracket through a double-headed cylinder, wherein a lifting bottom plate is provided at the bottom of the connecting vertical plate of the clamping plate to lift the bottom of the cylindrical embryo, and a limiting protrusion is provided on the upper part of the connecting vertical plate to cooperate with the notch of the cylindrical embryo, so that the product position does not deviate too much during extraction. At the same time, a supporting top plate is provided on the connecting vertical plate to cooperate with the top plate of the connecting column, so that the double-headed cylinder does not need to bear excessive force, thereby ensuring the stability of the clamping process.

[0017] In order to ensure the accuracy of the position of each layer of products when the cylindrical embryo is placed on the rotating bottom plate for stacking, the products are limited by the side plate assembly, and the second side plate of the side plate assembly is provided with multiple layers of sliding through holes, and the sliding through holes are provided with limiting parts, one end of the limiting parts can cooperate with the notch of the cylindrical embryo, and the limiting parts of each layer can be driven by the push rod to move. Since the top of the push rod is hinged to the top of the second side plate, the lower part of the push rod is limited by the mounting block and the butterfly stud, and the position of the butterfly bolt can be manually adjusted to drive the push rod to rotate. In the process of the push rod approaching the second side plate, the upper layer of the limiting parts will be pushed first, and the end face of the limiting parts opposite to the notch can be chamfered, so that the notch of the cylindrical embryo can be matched with the limiting parts during the movement process to fine-tune the position of the cylindrical matching, so that the position of each layer of products is adjusted layer by layer from top to bottom, and the position accuracy of each layer of products is finally guaranteed with the cooperation of the rotating bottom plate.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of a carbon-carbon composite cylindrical embryo.

[0020] Figure 2 It is a schematic diagram of the overall structure of the clamping device of the present invention.

[0021] Figure 3 It is a schematic structural diagram of the clamping device of the present invention.

[0022] Figure 4 It is a schematic structural diagram of the splint of the present invention.

[0023] Figure 5 It is a schematic diagram of the installation of the push rod of the present invention.

[0024] Figure 6 It is a structural schematic diagram of the mounting block of the present invention.

[0025] The text markings in the figure are as follows: 100, cylindrical embryo; 200, notch; 1, supporting bottom plate; 2, rotating bottom plate; 3, first side plate; 4, limiting plate; 5, second side plate; 6, mounting block; 7, push rod; 8, limiting piece; 9, clamping plate; 10, top plate; 11, double-headed cylinder; 12, lifting ring; 13, connecting column; 14, spring; 15, lifting bottom plate; 16, connecting vertical plate; 17, limiting protrusion; 18, supporting top plate; 19, limiting groove; 20, upper and lower through holes; 21, strip through hole; 22, butterfly stud; 23, sliding through hole. DETAILED DESCRIPTION

[0026] The present invention is further explained below by way of examples.

[0027] A high-precision clamping device for a carbon-carbon composite cylindrical embryo, comprising a supporting base plate 1, on which a rotating base plate 2 is arranged, a group of symmetrical first side plates 3 and a group of symmetrical second side plates 5 are arranged on the outer ring of the supporting base plate 1, a multi-layered array of sliding through holes 23 is opened on the second side plates 5, and a limiting member 8 is movably arranged in the sliding through hole 23; a push rod 7 is hinged on the outer top of the second side plate 5, and a mounting block 6 is arranged at the outer bottom of the second side plate 5, and a limiting portion is arranged on the mounting block 6 to limit the bottom of the push rod 7; a clamping device is arranged above the first side plate 3 and the second side plate 5, and the clamping device comprises a double-headed cylinder 11, and the tail ends of the piston rods on both sides of the double-headed cylinder 11 are connected to clamping plates 9, and the double-headed cylinder 11 is connected by a connecting column 13, and a lifting ring 12 is arranged at the top of the connecting column 13.

[0028] Preferably, please refer to Figure 2 As shown, the first side plate 3 and the second side plate 5 are staggered, and a limit plate 4 is arranged between the first side plate 3 and the second side plate 5; the rotating base plate 2 is connected to the bearing of the supporting base plate 1.

[0029] Preferably, please refer to Figure 2 , 5 As shown in Figures 6 and 7, the cross section of the sliding through hole 23 is semicircular, the limiting member 8 is a columnar structure and its cross section is also semicircular, and the limiting member 8 is located on the outer side of the second side plate 5 and has a limiting groove 19, which corresponds to the position of the push rod 7. The bottom surface of the limiting groove 19 is an inclined structure, and the width of the limiting groove 19 is greater than the width of the push rod 7. The push rod 7 and each limiting member 8 are connected by a soft rope.

[0030] The end surface of the stopper 8 located on the inner side of the second side plate 5 is chamfered so that the stopper 8 can drive the cylindrical embryo 100 to perform fine adjustment of the position in the process of cooperating with the notch 200 with the cooperation of the rotating bottom plate 2 .

[0031] Preferably, please refer to Figure 2 , 5 As shown in FIG. 6 , the limiting portion on the mounting block 6 is an upper and lower through hole 20, and the bottom of the push rod 7 is located in the upper and lower through holes 20 and is limited; the side wall of the mounting block 6 is provided with a penetrating strip through hole 21, and the strip through hole 21 is provided with a butterfly stud 22, and the butterfly stud 22 is fixedly connected to the mounting block 6 with a bolt.

[0032] The position of the butterfly stud 22 can be adjusted manually, and the push rod 7 can be pushed manually to move the limiting members 8 of each layer from top to bottom in sequence.

[0033] Preferably, please refer to Figure 2 , 3 As shown in Figures 4 and 5, the clamping plate 9 includes a connecting vertical plate 16, a supporting top plate 18 is connected to the top of one side of the connecting vertical plate 16, a lifting bottom plate 15 is connected to the bottom of the other side of the connecting vertical plate 16, and the connecting vertical plate 16 is connected to the piston rod of the double-headed cylinder 11. The side wall of the connecting vertical plate 16 is connected to the piston rod of the double-headed cylinder 11 through a spring 14; the supporting top plate 18 is supported by the connecting column 13. A horizontally arranged top plate 10 is arranged on the connecting column 13, and the top plate 10 is located above the double-headed cylinder 11, and the supporting top plate 18 is supported by the top plate 10. A limiting protrusion 17 is arranged on the side wall of the connecting vertical plate 16, and the limiting protrusion 17 is located on the side opposite to the supporting top plate 18, and the cross section of the limiting protrusion 17 is a semicircular structure.

[0034] A supporting top plate 18 is provided on the connecting vertical plate 16 and can cooperate with the top plate 10 of the connecting column. Since the connecting vertical plate 16 and the double-headed cylinder 11 are connected by a spring 14, the supporting top plate 18 plays a major force-bearing role, and the double-headed cylinder 11 does not need to bear excessive force, thereby ensuring the service life of the components and the stability of the clamping process.

[0035] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0036] The principles and implementation methods of the present invention are explained herein. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A high-precision clamping device for a carbon-carbon composite cylindrical embryo, comprising a supporting base plate (1), characterized in that: The supporting bottom plate (1) is provided with a rotating bottom plate (2); the outer ring of the supporting bottom plate (1) is provided with a group of symmetrical first side plates (3) and a group of symmetrical second side plates (5); the second side plates (5) are provided with a multi-layer array of sliding through holes (23); a limiting member (8) is movably provided in the sliding through holes (23); a push rod (7) is hingedly connected to the top of the outer side of the second side plate (5); a mounting block (6) is provided at the bottom of the outer side of the second side plate (5); a limiting portion is provided on the mounting block (6) to limit the bottom of the push rod (7); a clamping device is provided above the first side plate (3) and the second side plate (5). The clamping device comprises a double-headed cylinder (11), the rear ends of the piston rods on both sides of the double-headed cylinder (11) are connected to clamping plates (9), the double-headed cylinder (11) is connected by a connecting column (13), and the top of the connecting column (13) is provided with a lifting ring (12); the limiting portion on the mounting block (6) is an upper and lower through hole (20), the bottom of the push rod (7) is located in the upper and lower through holes (20) and is limited; the side wall of the mounting block (6) is provided with a through strip through hole (21), a butterfly stud (22) is provided in the strip through hole (21), and the butterfly stud (22) is fixedly connected to the mounting block (6) with a bolt.

2. A high-precision clamping device for a carbon-carbon composite cylindrical embryo according to claim 1, characterized in that: The first side plate (3) and the second side plate (5) are arranged in a staggered manner, and a limit plate (4) is arranged between the first side plate (3) and the second side plate (5); the rotating bottom plate (2) is connected to the bearing of the supporting bottom plate (1).

3. A high-precision clamping device for a carbon-carbon composite cylindrical embryo according to claim 1, characterized in that: The cross section of the sliding through hole (23) is semicircular, the limiting member (8) is a columnar structure and its cross section is also semicircular, and the limiting member (8) is located on the outer portion of the second side plate (5) and has a limiting groove (19) corresponding to the position of the push rod (7).

4. A high-precision clamping device for a carbon-carbon composite cylindrical embryo according to claim 3, characterized in that: The bottom surface of the limiting groove (19) is an inclined surface structure, and the width of the limiting groove (19) is greater than the width of the push rod (7).

5. A high-precision clamping device for a carbon-carbon composite cylindrical embryo according to claim 4, characterized in that: The push rod (7) and each limiting member (8) are connected via a soft rope.

6. A high-precision clamping device for a carbon-carbon composite cylindrical embryo according to claim 1, characterized in that: The clamping plate (9) comprises a connecting vertical plate (16), the top of one side of the connecting vertical plate (16) is connected to a supporting top plate (18), the bottom of the other side of the connecting vertical plate (16) is connected to a lifting bottom plate (15), and the connecting vertical plate (16) is connected to the piston rod of the double-headed cylinder (11).

7. A high-precision clamping device for a carbon-carbon composite cylindrical embryo according to claim 6, characterized in that: The side wall of the connecting vertical plate (16) is connected to the piston rod of the double-headed cylinder (11) via a spring (14); the supporting top plate (18) is supported by the connecting column (13).

8. A high-precision clamping device for a carbon-carbon composite cylindrical embryo according to claim 7, characterized in that: A horizontally arranged top plate (10) is provided on the connecting column (13); the top plate (10) is located above the double-head cylinder (11); and the supporting top plate (18) is supported by the top plate (10).

9. A high-precision clamping device for a carbon-carbon composite cylindrical embryo according to claim 8, characterized in that: A limiting protrusion (17) is provided on the side wall of the connecting vertical plate (16), the limiting protrusion (17) is located on the side opposite to the supporting top plate (18), and the cross section of the limiting protrusion (17) is a semicircular structure.

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