Puncture needle positioning device of carbon fiber preform

Abstract

The utility model provides a puncture needle positioning device for a carbon fiber preform, and belongs to the technical field of carbon fiber preform processing. The puncture needle positioning device of the carbon fiber preform comprises a driving assembly and a puncture assembly, the driving assembly comprises a supporting frame, a driving gear, a threaded rotating rod, a driven gear and a motor, and the puncture assembly comprises a fixing plate, a steel needle inserting plate, a clamping piece and a positioning guide plate. A motor is used for driving a driving gear to rotate, the driving gear is meshed to drive a plurality of driven gears to rotate synchronously at the same speed, so that a plurality of threaded rotating rods are driven to rotate synchronously at the same speed, and stable transmission is achieved; therefore, the steel needle inserting plates with different arrays and numbers of steel needles can be conveniently disassembled, assembled and replaced, and the disassembling, assembling and replacing efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of carbon fiber preform processing, and in particular to a puncture needle positioning device for a carbon fiber preform. Background Art

[0002] Three-dimensional fabric is a high-performance composite material reinforcement developed on the basis of plane fabric. Its reinforcing fibers are continuously oriented in three-dimensional space, which is conducive to improving the interlayer structure strength, toughness and damage resistance of composite materials. According to the continuity and orientation degree of reinforcing fibers, three-dimensional fabrics have various structural forms. Overall puncture fabric is a special carbon fiber three-dimensional fabric with good overall structure and high fiber volume content. It is an excellent substrate for making high-performance carbon / carbon composite materials for heat protection and insulation. It is mainly used in aviation, aerospace, automobile, medical and new technology fields.

[0003] Announcement No. CN 217573637 U discloses a positioning device for an array of super-long puncture steel needles of a carbon fiber preform. To address the problems of a large number of super-long puncture steel needle arrays of a three-dimensional fabric, the steel needles being tough, and the inconvenience of positioning the puncture steel needles by manual placement, the device is composed of a steel needle positioning guide plate, a worm, a worm gear, a lead screw, a lead screw nut and other mechanisms. The puncture array steel needles are positioned through closely spaced precise tiny holes on the steel needle positioning guide plate; a stepping motor is used as a power source to ensure that the positioning of the overall puncture steel needle array is reliable and continuous; the structure is simple and the principle is feasible, and the problem that the super-long puncture steel needles in the prior art cannot be effectively positioned because they have a certain toughness and are easy to bend in the Z direction.

[0004] However, there are some defects in the above scheme: in the above scheme, multiple motors are set to drive the threaded rods to rotate respectively, and the multiple threaded rods are used to drive the positioning guide plate to move, but it is difficult for multiple motors to drive the multiple threaded rods to move synchronously at the same speed, and differences are likely to occur, causing the positioning plate to tilt. The holes on the positioning guide plate are likely to be misaligned with the steel needles, and when steel needles of different array shapes or quantities are required for puncture, it is inconvenient to replace the steel needles or needle array plug plates. Utility Model Content

[0005] In order to make up for the above shortcomings, the present application provides a puncture needle positioning device for a carbon fiber preform, aiming to improve the problems raised in the above background technology.

[0006] An embodiment of the present application provides a puncture needle positioning device for a carbon fiber preform, comprising a drive assembly and a puncture assembly.

[0007] The driving assembly includes a support frame, a driving gear, a threaded rotating rod, a driven gear and a motor. The motor is installed in the support frame. The threaded rotating rod rotates through the support frame. The driving gear is fixedly connected to the output end of the motor. The driven gear is fixedly sleeved on the surface of the threaded rotating rod and meshes with the driving gear.

[0008] The puncture assembly includes a fixed plate, a steel needle plug plate, a clamping piece and a positioning guide plate. The fixed plate is arranged on the top of the support frame, the steel needle plug plate is slidably connected to the fixed plate, the clamping piece is arranged on one side of the steel needle plug plate and is clamped to the fixed plate, and the positioning guide plate is threadedly connected to the threaded rotating rod.

[0009] In a specific implementation, the fixing plate is provided with a slide groove, and a sliding block is provided on the side of the steel needle insertion plate, and the sliding block and the inner wall of the slide groove are clearance-matched.

[0010] In the above implementation process, the clearance between the slider and the inner wall of the slide groove is set to allow the slider to slide in the slide groove, thereby realizing the sliding installation of the steel needle plug plate.

[0011] In a specific embodiment, the clamping member includes a clamping rod, a movable plate and a spring, the steel needle plug plate is provided with a connecting groove, one end of the clamping rod is slidably arranged in the connecting groove, the movable plate is fixedly connected to the clamping rod, and the spring is arranged in the connecting groove.

[0012] In the above implementation process, the clamping rod, the movable plate and the spring are provided, and the movable plate and the clamping rod are pushed by the spring, so that the clamping rod remains clamped with the fixed plate.

[0013] In a specific implementation manner, the fixing plate is provided with a card slot, and the card rod is plugged into the card slot.

[0014] In the above implementation process, the plug-in and plug-in connection between the card rod and the fixing plate is achieved by arranging the card rod and the card slot to be plugged in each other.

[0015] In a specific embodiment, a handle is provided at the end of the steel needle insertion plate, and a non-slip pad is provided on the surface of the handle.

[0016] In the above implementation process, a handle is provided to facilitate personnel to hold the handle and operate the movable steel needle inserting plate.

[0017] In a specific embodiment, a plurality of puncture steel needles are inserted at the top of the steel needle insertion plate, and a plurality of through holes are formed on the positioning guide plate.

[0018] In a specific implementation, a lead screw nut is disposed through the positioning guide plate, and the lead screw nut is threadedly sleeved on the surface of the threaded rotating rod.

[0019] In the above implementation process, by setting the lead screw nut and utilizing the threaded connection between the lead screw nut and the threaded rotating rod, the threaded transmission drives the positioning guide plate to move when the threaded rotating rod rotates.

[0020] In a specific embodiment, the support frame includes a bottom plate, a support column and a top plate, the support column is arranged on the top of the bottom plate, and the top plate is arranged on the top of the support column.

[0021] Beneficial effect: The present application provides a puncture needle positioning device for a carbon fiber preform, which arranges a support frame, a driving gear, a threaded rotating rod, a driven gear and a motor, and utilizes the motor to drive the driving gear to rotate, and the driving gear meshes to drive multiple driven gears to rotate synchronously at the same speed, thereby driving multiple threaded rotating rods to rotate synchronously at the same speed to achieve stable transmission, and arranges a fixed plate, a steel needle plug plate, a clamping piece and a positioning guide plate, adopts a sliding connection method between the steel needle plug plate and the fixed plate, and cooperates with the clamping connection of the clamping piece, so as to facilitate the disassembly and replacement of the steel needle plug plate with different arrays and quantities of steel needles, thereby improving the disassembly and replacement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the drawings required for use in the implementation methods will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic structural diagram of a puncture needle positioning device for a carbon fiber preform provided in an embodiment of the present application;

[0024] Figure 2 A schematic diagram of the structure of a drive assembly provided in an embodiment of the present application;

[0025] Figure 3 A schematic diagram of the support frame structure provided for an embodiment of the present application;

[0026] Figure 4 A schematic diagram of the steel needle plug plate structure provided in the embodiment of the present application;

[0027] Figure 5 A schematic diagram of the structure of the card connector provided in an embodiment of the present application.

[0028] In the figure: 100-driving assembly; 110-support frame; 111-bottom plate; 112-support column; 113-top plate; 120-driving gear; 130-threaded rotating rod; 140-driven gear; 160-motor; 200-puncture assembly; 210-fixed plate; 211-slide groove; 213-card slot; 220-steel needle plug plate; 222-slider; 223-connecting groove; 224-handle; 240-card connector; 241-card rod; 242-movable plate; 243-spring; 260-positioning guide plate; 262-screw nut. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0030] See also Figure 1-Figure 5 The present application provides a puncture needle positioning device for a carbon fiber preform, including a driving assembly 100 and a puncture assembly 200.

[0031] See also Figure 1 , 2 and 3, the driving assembly 100 includes a support frame 110, a driving gear 120, a threaded rotating rod 130, a driven gear 140 and a motor 160, the motor 160 is installed in the support frame 110, the threaded rotating rod 130 rotates through the support frame 110, the driving gear 120 is fixedly connected to the output end of the motor 160, and the driven gear 140 is fixedly sleeved on the surface of the threaded rotating rod 130 and meshes with the driving gear 120.

[0032] In a specific embodiment, the support frame 110 includes a bottom plate 111 , a support column 112 , and a top plate 113 . The support column 112 is disposed on the top of the bottom plate 111 , and the top plate 113 is disposed on the top of the support column 112 .

[0033] See also Figure 1 , 2 , 3, 4 and 5, the puncture assembly 200 includes a fixed plate 210, a steel needle plug plate 220, a clamping piece 240 and a positioning guide plate 260, the fixed plate 210 is arranged on the top of the support frame 110, the steel needle plug plate 220 is slidably connected to the fixed plate 210, the clamping piece 240 is arranged on one side of the steel needle plug plate 220 and is clamped to the fixed plate 210, the positioning guide plate 260 is threadedly connected to the threaded rotating rod 130, a plurality of puncture steel needles are inserted on the top of the steel needle plug plate 220, and the positioning guide plate 260 is provided with a plurality of through holes.

[0034] Among them, the fixed plate 210 is provided with a slide groove 211, and a slider 222 is arranged on the side of the steel needle plug plate 220. The slider 222 and the inner wall of the slide groove 211 are clearance matched. By setting the slider 222 and the inner wall of the slide groove 211 clearance matched, the slider 222 slides in the slide groove 211, thereby realizing the sliding installation of the steel needle plug plate 220.

[0035] In this embodiment, the clamping member 240 includes a clamping rod 241, a movable plate 242 and a spring 243. The steel needle plug plate 220 is provided with a connecting groove 223. One end of the clamping rod 241 is slidably set in the connecting groove 223. The movable plate 242 is fixedly connected to the clamping rod 241. The spring 243 is set in the connecting groove 223. By setting the clamping rod 241, the movable plate 242 and the spring 243, the spring 243 is used to push the movable plate 242 and the clamping rod 241, so that the clamping rod 241 remains clamped with the fixed plate 210.

[0036] In a specific implementation, the fixing plate 210 is provided with a card slot 213, and the card rod 241 is plugged into the card slot 213. By setting the card rod 241 and the card slot 213 to be plugged into each other, the plug-in card connection between the card rod 241 and the fixing plate 210 is achieved.

[0037] In a specific embodiment, a handle 224 is provided at the end of the steel needle insertion plate 220, and a non-slip pad is provided on the surface of the handle 224.

[0038] Specifically, the positioning guide plate 260 is penetrated by a lead screw nut 262, which is threadedly sleeved on the surface of the threaded rotating rod 130. By setting the lead screw nut 262 and utilizing the threaded connection between the lead screw nut 262 and the threaded rotating rod 130, the threaded transmission drives the positioning guide plate 260 to move when the threaded rotating rod 130 rotates.

[0039] The working principle of the puncture needle positioning device for the carbon fiber preform is as follows: when in use, the starting motor 160 drives the driving gear 120 to rotate, the driving gear 120 engages to drive multiple driven gears 140 to rotate synchronously at the same speed, and multiple driven gears 140 drive multiple threaded rotating rods 130 to rotate synchronously at the same speed, and the threaded rotating rods 130 drive the lead screw nut 262 to move, thereby realizing stable transmission of the positioning guide plate 260 to move, ensuring that the through hole on the positioning guide plate 260 is aligned with the steel needle, and at the same time, the disassembly and assembly When replacing the steel needle insertion plate 220 with a different array and number of steel needles, hold the handle 224 and press the movable plate 242. The movable plate 242 drives the clamping rod 241 to move and squeeze the spring 243. The clamping rod 241 moves out of the slot 213. Then pull the handle 224 to pull out the steel needle insertion plate 220 and replace it and reinsert it. Use the spring 243 to push the movable plate 242 and the clamping rod 241. The clamping rod 241 is inserted into the slot 213. The clamping rod 241 remains clamped to the fixed plate 210, thereby improving the efficiency of disassembly and replacement.

[0040] It should be noted that the specific model and specifications of the motor 160 need to be selected and determined based on the actual specifications of the device, and the specific selection calculation method adopts the existing technology in the field, so it will not be described in detail.

[0041] The power supply and principle of the motor 160 are clear to those skilled in the art and will not be described in detail here.

[0042] It is obvious to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present application. Any figure mark in the claims should not be regarded as limiting the claim involved.

Claims

1. A puncture needle positioning device for a carbon fiber preform, characterized in that: include A driving assembly (100), the driving assembly (100) comprising a support frame (110), a driving gear (120), a threaded rotating rod (130), a driven gear (140) and a motor (160), wherein the motor (160) is installed in the support frame (110), the threaded rotating rod (130) rotates and passes through the support frame (110), the driving gear (120) is fixedly connected to the output end of the motor (160), and the driven gear (140) is fixedly sleeved on the surface of the threaded rotating rod (130) and meshes with the driving gear (120); The puncture assembly (200) includes a fixed plate (210), a steel needle plug plate (220), a clamping piece (240) and a positioning guide plate (260), wherein the fixed plate (210) is arranged on the top of the support frame (110), the steel needle plug plate (220) is slidably connected to the fixed plate (210), the clamping piece (240) is arranged on one side of the steel needle plug plate (220) and is clamped to the fixed plate (210), and the positioning guide plate (260) is threadedly connected to the threaded rotating rod (130).

2. The puncture needle positioning device for a carbon fiber preform according to claim 1, characterized in that: The fixing plate (210) is provided with a slide groove (211), and a sliding block (222) is provided on the side of the steel needle inserting plate (220), and the sliding block (222) and the inner wall of the slide groove (211) are clearance-matched.

3. The puncture needle positioning device for a carbon fiber preform according to claim 1, characterized in that: The clamping member (240) comprises a clamping rod (241), a movable plate (242) and a spring (243); the steel needle plug plate (220) is provided with a connecting groove (223); one end of the clamping rod (241) is slidably disposed in the connecting groove (223); the movable plate (242) is fixedly connected to the clamping rod (241); and the spring (243) is disposed in the connecting groove (223).

4. The puncture needle positioning device for a carbon fiber preform according to claim 3, characterized in that: The fixing plate (210) is provided with a card slot (213), and the card rod (241) is plugged into the card slot (213).

5. The puncture needle positioning device for a carbon fiber preform according to claim 1, characterized in that: A handle (224) is provided at the end of the steel needle insertion plate (220), and a non-slip pad is provided on the surface of the handle (224).

6. The puncture needle positioning device for a carbon fiber preform according to claim 1, characterized in that: A plurality of puncture steel needles are inserted into the top of the steel needle insertion plate (220), and a plurality of through holes are formed in the positioning guide plate (260).

7. The puncture needle positioning device for a carbon fiber preform according to claim 1, characterized in that: The positioning guide plate (260) is provided with a lead screw nut (262) penetrating therethrough, and the lead screw nut (262) is threadedly sleeved on the surface of the threaded rotating rod (130).

8. The puncture needle positioning device for a carbon fiber preform according to claim 1, characterized in that: The support frame (110) comprises a bottom plate (111), a support column (112) and a top plate (113); the support column (112) is arranged on the top of the bottom plate (111), and the top plate (113) is arranged on the top of the support column (112).

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