Tool for carbon fiber preform

Abstract

The utility model discloses a tool for a carbon fiber preform, which relates to the technical field of tools and comprises a telescopic rod, a bottom ring, an inner screw, a preform workpiece and an outer screw cylinder, and a lifting ring block is mounted at the top of the telescopic rod. When the device is used, firstly, a prefabricated workpiece is placed below the lifting ring block, then the height of the extrusion block is adjusted through the knob, the lead screw and the threaded block, when the height is adjusted, the lifting ring block descends, and the descending of the lifting ring block enables the inner ring block and the sliding block to descend; the sliding block descends to enable the semi-annular block and the trapezoidal block to descend, the trapezoidal block descends to enable the sliding block to descend through the extrusion block, and then the semi-annular block is tightly attached to the surface of the prefabricated part workpiece, so that the inner annular block and the two semi-annular blocks can be tightly attached to the inner walls and the surfaces of the prefabricated part workpieces at different heights respectively during descending; and additional adjustment is not needed, the labor intensity of workers is relieved, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling, in particular to a tooling for a carbon fiber preform. Background Art

[0002] Carbon-carbon composites are high-performance composite materials formed by reinforcing a carbon matrix with carbon fibers and their fabrics. These materials offer excellent properties, including light weight, low thermal expansion coefficient, high-temperature resistance, corrosion resistance, stable friction coefficient, and excellent thermal and electrical conductivity. Production begins with the preparation of a carbon fiber preform, which is densified by deposition and then graphitized to produce the carbon-carbon composite.

[0003] In the prior art, the anti-deformation tooling disclosed in the patent with publication number CN217834330U prevents the preform workpiece from being deformed during processing by means of an inner ring block, an outer fixing ring, bolts, nuts, a preform workpiece, a bottom ring, an outer screw barrel, an inner screw, a telescopic rod, a fixing plate, a push-pull rod, a push-pull plate, a mounting plate, a clamping plate, and a latch. However, when in use, the two outer fixing rings need to be installed by means of bolts and nuts, and after installation, the inner ring block is connected to the outer fixing ring by means of push-pull rods, a clamping plate, a latch and a mounting plate. After processing, the bolts and latches need to be released for fixing and disassembling back and forth. The back and forth fixing and disassembly is too cumbersome, and increases the labor intensity of the staff, making it inconvenient to use. In view of the shortcomings of the prior art, the utility model discloses a tooling for a carbon fiber preform to solve the above problems. Utility Model Content

[0004] The purpose of the present application is to provide a tooling for carbon fiber preforms to solve the problem raised in the above background technology that when in use, two outer fixing rings need to be installed by bolts and nuts, and after installation, the inner ring block is connected to the outer fixing ring by push-pull rods, clamping plates, pins and mounting plates. After processing, the bolts and pins need to be released to fix and disassemble back and forth, which is too cumbersome and increases the labor intensity of the staff, making it inconvenient to use.

[0005] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a tooling for a carbon fiber preform, comprising a telescopic rod, a bottom ring, an inner screw, a preform workpiece, and an outer screw barrel, wherein a lifting ring block is mounted on the top of the telescopic rod, the inner screw is rotatably mounted on the bottom of the lifting ring block, the lifting ring block is provided with an anti-deformation mechanism adapted to the preform workpiece, and the anti-deformation mechanism is mounted in cooperation with the bottom ring;

[0006] The anti-deformation mechanism includes an inner ring block detachably mounted on the bottom of the lifting ring block, four sliding grooves are provided at the bottom of the lifting ring block, sliding rods are installed on the relative inner walls of the four sliding grooves, and sliders are slidably sleeved on the four sliding rods. The sides of the four sliders are provided with elastic units, and the sides of the two sliders located on one side are jointly detachably mounted with semi-ring blocks, and the bottoms of the four sliders are installed with trapezoidal blocks, four extrusion blocks are provided above the bottom ring, and an adjustment unit for moving the four extrusion blocks is provided on the bottom ring.

[0007] Preferably, the adjustment unit includes a fixed block installed on the side of the bottom ring, and two grooves are provided on the side of the fixed block. The relative inner walls of the two grooves are rotatably installed with screws, and the top end of one of the screws extends to the outside of the fixed block and is installed with a knob. Threaded blocks are threadedly sleeved on the two screws, and the two extrusion blocks located on one side are respectively installed on the top of the two threaded blocks, and the two screws are installed through transmission elements.

[0008] Preferably, the transmission element includes a transmission cavity opened on the fixed block, the bottom ends of the two screw rods extend into the transmission cavity respectively and are respectively installed with sprockets, and the two sprockets are jointly tensioned and engaged with a chain.

[0009] Preferably, a fastening threaded hole is opened on the side of the fixing block, a fastening bolt is threadedly installed on the fastening threaded hole, and the end of the fastening bolt is tightly pressed against one of the screw rods.

[0010] Preferably, an arc-shaped limiting plate is installed on the side of the fixing block.

[0011] Preferably, the elastic unit includes a spring installed on the side of the slider, and the other end of the spring is installed on the inner wall of the side of the sliding groove.

[0012] Preferably, two mounting holes are provided on the top of the lifting ring block, and first fixing bolts are movably installed in the two mounting holes. Two first fixing threaded holes are provided on the top of the inner ring block, and the ends of the two first fixing bolts are respectively threadedly installed in the two first fixing threaded holes. Through holes are provided on the sides of the four sliders, and second fixing bolts are movably installed in the four through holes. Two second fixing threaded holes are provided on the outer walls of the circumferential sides of the two semi-ring blocks, and the ends of the two second fixing bolts are respectively threadedly installed in the four second fixing threaded holes.

[0013] In summary, the technical effects and advantages of the utility model are:

[0014] 1. In the utility model, when in use, the prefabricated workpiece is first placed under the lifting ring block, and then the height of the extrusion block is adjusted by the knob, the screw rod and the threaded block. When the adjustment is completed, the lifting ring block is lowered by the inner screw rod, the outer screw barrel and the telescopic rod. The lowering of the lifting ring block will cause the inner ring block to fall, and at the same time, the lowering of the lifting ring block will cause the slider to fall, and the lowering of the slider will cause the semi-annular block and the trapezoidal block to fall. The lowering of the trapezoidal block will cause the slider to fall through the extrusion block, thereby causing the semi-annular block to be in close contact with the surface of the prefabricated workpiece, so that the inner ring block and the two semi-annular blocks can be in close contact with the inner walls and surfaces of the prefabricated workpieces of different heights respectively during the lowering, without the need for additional adjustment, thereby reducing the labor intensity of the staff and facilitating use.

[0015] 2. In the present invention, the provision of the first fixing bolt and the second fixing bolt facilitates the disassembly and replacement of the inner annular block and the semi-annular block, thereby avoiding damage caused by long-term use and affecting use. The provision of the arc-shaped limiting plate facilitates the limiting of the prefabricated workpiece, thereby facilitating the prefabricated workpiece to be located directly below the lifting ring block. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the embodiment of the utility model from a first viewing angle;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the embodiment of the utility model from a second viewing angle;

[0019] Figure 3 This is a partially cutaway three-dimensional structural diagram of a fixing block in an embodiment of the present utility model;

[0020] Figure 4 It is a partially cutaway three-dimensional structural diagram of the lifting ring block in an embodiment of the present invention.

[0021] In the figure: 1. Telescopic rod; 2. Bottom ring; 3. Lifting ring block; 4. Inner ring block; 5. Slider; 6. Spring; 7. Semi-ring block; 8. Trapezoidal block; 9. Fixed block; 10. Screw; 11. Knob; 12. Sprocket; 13. Chain; 14. Threaded block; 15. Extrusion block; 16. Fastening bolt; 17. Arc limit plate; 18. First fixing bolt; 19. Second fixing bolt. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example: Reference Figures 1-4 The tooling shown is for carbon fiber preforms, comprising a telescopic rod 1, a bottom ring 2, an inner screw, a preform workpiece, and an outer barrel. A lifting ring block 3 is mounted on the top of the telescopic rod 1, and the inner screw is rotatably mounted on the bottom of the lifting ring block 3. The lifting ring block 3 is provided with an anti-deformation mechanism adapted for the preform workpiece, and the anti-deformation mechanism is mounted in conjunction with the bottom ring 2.

[0024] The anti-deformation mechanism includes an inner ring block 4 that is detachably mounted on the bottom of the lifting ring block 3. Four sliding grooves are provided at the bottom of the lifting ring block 3. Slide rods are installed on the relative inner walls of the four sliding grooves. Sliders 5 are slidably sleeved on the four slide rods. Elastic units are provided on the sides of the four slides 5. Semi-ring blocks 7 are detachably mounted on the sides of the two slides 5 on one side. Trapezoidal blocks 8 are installed at the bottom of the four slides 5. Four extrusion blocks 15 are provided above the bottom ring 2, and an adjustment unit for moving the four extrusion blocks 15 is provided on the bottom ring 2.

[0025] By means of the above mechanism, when in use, the preform workpiece is first placed under the lifting ring block 3, and then the height of the extrusion block 15 is adjusted by the adjustment unit. When the adjustment is completed, the lifting ring block 3 is lowered by the inner screw, the outer screw barrel and the telescopic rod 1. The lowering of the lifting ring block 3 will cause the inner ring block 4 to drop. At the same time, the lowering of the lifting ring block 3 will cause the slider 5 to drop. The lowering of the slider 5 will cause the semi-annular block 7 and the trapezoidal block 8 to drop. When the inclined surface of the trapezoidal block 8 contacts the extrusion block 15, the bottom of the semi-annular block 7 is at the same level as the top of the preform workpiece. The slider 5 is moved to a horizontal position, and then the slider 5 is continued to descend. At this time, the trapezoidal block 8 is squeezed by the extrusion block 15 and moves to avoid it. The movement of the trapezoidal block 8 causes the slider 5 to move. When the vertical surface of the trapezoidal block 8 contacts the extrusion block 15, the slider 5 moves the maximum distance, thereby making the semi-annular block 7 close to the surface of the prefabricated workpiece. As a result, the inner annular block 4 and the two semi-annular blocks 7 can be made close to the inner walls and surfaces of the prefabricated workpieces at different heights while descending. No additional adjustment is required, which reduces the labor intensity of the staff and is easy to use.

[0026] like Figure 1 and Figure 3As shown, the adjustment unit includes a fixed block 9 installed on the side of the bottom ring 2, and two grooves are provided on the side of the fixed block 9. The relative inner walls of the two grooves are rotatably installed with screw rods 10, and the top of one screw rod 10 extends to the outside of the fixed block 9 and is installed with a knob 11. The two screw rods 10 are threadedly sleeved with threaded blocks 14, and the two extrusion blocks 15 located on one side are respectively installed on the top of the two threaded blocks 14. The two screw rods 10 are installed through transmission elements. The advantage of this arrangement is that the height of the extrusion block 15 can be easily adjusted by setting the fixed block 9, the screw rod 10, the knob 11 and the threaded block 14.

[0027] Specifically, rotating the knob 11 will cause the screw 10 to rotate, and rotating the screw 10 will cause the threaded block 14 to move, and the movement of the threaded block 14 will cause the extrusion block 15 to move, thereby adjusting the height of the extrusion block 15, thereby making it easier for the two semi-annular blocks 7 to be used for prefabricated workpieces of different heights.

[0028] like Figure 3 As shown, the transmission element includes a transmission cavity opened on the fixed block 9, the bottom ends of the two screw rods 10 extend into the transmission cavity respectively and are respectively installed with sprockets 12, and the two sprockets 12 are jointly tensioned and engaged with a chain 13. The advantage of this arrangement is that the arrangement of the sprockets 12 and the chain 13 facilitates the simultaneous rotation of the two screw rods 10.

[0029] Specifically, the rotation of one of the screw rods 10 will cause one of the sprockets 12 to rotate, the rotation of one of the sprockets 12 will cause the other sprocket 12 to rotate through the chain 13, and the rotation of the other sprocket 12 will cause the other screw rod 10 to rotate, so that the two screw rods 10 rotate simultaneously.

[0030] like Figure 2 As shown, a fastening threaded hole is provided on the side of the fixing block 9, and a fastening bolt 16 is threadedly installed on the fastening threaded hole. The end of the fastening bolt 16 is tightly pressed against one of the screw rods 10. The advantage of this arrangement is that the screw rod 10 can be easily fixed by the arrangement of the fastening bolt 16, thereby preventing the screw rod 10 from rotating itself during use and causing the extrusion block 15 to move.

[0031] like Figure 3 As shown, an arc-shaped limiting plate 17 is installed on the side of the fixed block 9. The advantage of this arrangement is that the arc-shaped limiting plate 17 can facilitate the positioning of the prefabricated workpiece and facilitate the prefabricated workpiece to be placed directly below the lifting ring block 3.

[0032] like Figure 4 As shown, the elastic unit includes a spring 6 installed on the side of the slider 5, and the other end of the spring 6 is installed on the inner wall of the side of the slide groove. The advantage of this arrangement is that the slider 5 can be easily reset by the arrangement of the spring 6.

[0033] Specifically, when the trapezoidal block 8 is not in contact with the extrusion block 15, the slider 5 is reset under the action of the spring 6, and the reset of the slider 5 resets the semi-annular block 7, making it easier to use next time.

[0034] like Figure 1 and Figure 4 As shown, two mounting holes are provided on the top of the lifting ring block 3, and first fixing bolts 18 are movably installed in the two mounting holes. Two first fixing threaded holes are provided on the top of the inner ring block 4, and the ends of the two first fixing bolts 18 are respectively threadedly installed in the two first fixing threaded holes. Through holes are provided on the sides of the four sliders 5, and second fixing bolts 19 are movably installed in the four through holes. Two second fixing threaded holes are provided on the outer walls of the circumferential sides of the two semi-annular blocks 7, and the ends of the two second fixing bolts 19 are respectively threadedly installed in the four second fixing threaded holes. The advantage of this arrangement is that through the arrangement of the first fixing bolts 18 and the second fixing bolts 19, the inner ring block 4 and the semi-annular block 7 are conveniently disassembled and replaced, avoiding damage caused by long-term use and affecting use.

[0035] Finally, it should be noted that the above is only a preferred embodiment 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 make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A tool for a carbon fiber preform, comprising a telescopic rod (1), a bottom ring (2), an inner screw, a preform workpiece and an outer screw barrel, characterized in that: A lifting ring block (3) is installed on the top of the telescopic rod (1), and the inner screw is rotatably installed on the bottom of the lifting ring block (3). The lifting ring block (3) is provided with an anti-deformation mechanism adapted to the prefabricated workpiece, and the anti-deformation mechanism is installed in conjunction with the bottom ring (2); The anti-deformation mechanism includes an inner ring block (4) detachably mounted on the bottom of the lifting ring block (3); four sliding grooves are provided at the bottom of the lifting ring block (3); sliding rods are installed on the relative inner walls of the four sliding grooves; sliders (5) are slidably sleeved on the four sliding rods; elastic units are provided on the sides of the four sliders (5); semi-annular blocks (7) are detachably mounted on the sides of the two sliders (5) on one side; trapezoidal blocks (8) are installed on the bottoms of the four sliders (5); four extrusion blocks (15) are provided above the bottom ring (2); and an adjustment unit for moving the four extrusion blocks (15) is provided on the bottom ring (2).

2. The tooling for carbon fiber preforms according to claim 1, characterized in that: The adjustment unit comprises a fixed block (9) mounted on the side of the bottom ring (2), two grooves are provided on the side of the fixed block (9), and screw rods (10) are rotatably mounted on the relative inner walls of the two grooves, the top end of one of the screw rods (10) extends outside the fixed block (9) and is mounted with a knob (11), and threaded blocks (14) are threadedly sleeved on the two screw rods (10), and the two extrusion blocks (15) located on one side are respectively mounted on the tops of the two threaded blocks (14), and the two screw rods (10) are mounted in conjunction with each other through a transmission element.

3. The tooling for carbon fiber preforms according to claim 2, characterized in that: The transmission element comprises a transmission cavity opened on the fixed block (9), the bottom ends of the two screw rods (10) respectively extend into the transmission cavity and are respectively installed with sprockets (12), and the two sprockets (12) are jointly tensioned and engaged with a chain (13).

4. The tooling for carbon fiber preforms according to claim 2, characterized in that: A fastening threaded hole is provided on the side of the fixing block (9), a fastening bolt (16) is threadedly mounted on the fastening threaded hole, and the end of the fastening bolt (16) is tightly pressed against one of the screw rods (10).

5. The tooling for carbon fiber preforms according to claim 2, characterized in that: An arc-shaped limiting plate (17) is installed on the side of the fixed block (9).

6. The tooling for carbon fiber preforms according to claim 1, characterized in that: The elastic unit comprises a spring (6) mounted on the side of the slider (5), and the other end of the spring (6) is mounted on the inner wall of the side of the slide groove.

7. The tooling for carbon fiber preforms according to claim 1, characterized in that: The top of the lifting ring block (3) is provided with two mounting holes, and the first fixing bolts (18) are movably installed in the two mounting holes. The top of the inner ring block (4) is provided with two first fixing threaded holes, and the ends of the two first fixing bolts (18) are respectively threadedly installed in the two first fixing threaded holes. The sides of the four sliders (5) are provided with through holes, and the four through holes are movably installed in the second fixing bolts (19). The outer walls of the circumferential sides of the two semi-annular blocks (7) are provided with two second fixing threaded holes, and the ends of the two second fixing bolts (19) are respectively threadedly installed in the four second fixing threaded holes.

Images