Special clamp for cutting and forming carbon fiber workpiece

Abstract

The utility model relates to the technical field of carbon fiber processing, in particular to a special clamp for cutting and forming a carbon fiber workpiece, which comprises a die holder and a die core. And a detection element for detecting a cutting tool of the machining center is arranged on one side of each rotary pressing and clamping mechanism. Operation of a cutting tool of a machining center is not hindered, displacement of carbon fiber raw materials is prevented, and then the machining forming effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon fiber processing, in particular to a special fixture for cutting and forming carbon fiber workpieces. Background Art

[0002] Carbon fiber, composed primarily of carbon, exhibits properties such as high-temperature resistance, friction resistance, thermal conductivity, and corrosion resistance. Its fibrous, flexible appearance allows it to be processed into various fabrics. Due to the preferential orientation of its graphite microcrystals along the fiber axis, it exhibits high strength and modulus along the fiber axis. Carbon fiber has a low density, resulting in high specific strength and modulus. Its primary use is as a reinforcement for composites with resins, metals, ceramics, and carbon to create advanced composite materials. Carbon fiber-reinforced epoxy resin composites boast the highest specific strength and modulus of any existing engineering material.

[0003] Because carbon fiber composite materials have excellent physical and mechanical properties such as high temperature resistance, corrosion resistance, fatigue resistance, moisture resistance, low density, high strength and high modulus, electrical conductivity and heat transfer, and low thermal expansion coefficient, they are widely used in aerospace, military equipment, sporting goods, automobile manufacturing and other fields.

[0004] When carbon fiber is used as raw material to process large workpieces for drones and automobiles, the carbon fiber raw material is usually cut and shaped based on a mold using a machining center cutting method. Therefore, in order to prevent the carbon fiber raw material from displacement when the machining center cuts the carbon fiber raw material and ensure the processing and molding effect, it is particularly important to fix the carbon fiber raw material during cutting. Based on this, a special fixture for cutting and molding carbon fiber workpieces is provided. Summary of the Invention

[0005] In view of the shortcomings of the above-mentioned prior art, a special fixture for cutting and forming carbon fiber workpieces is provided, which does not hinder the operation of the cutting tool of the machining center and prevents the displacement of the carbon fiber raw material, thereby ensuring the processing and forming effect.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is a special fixture for cutting and forming carbon fiber workpieces, including a mold base and a mold core. A plurality of rotary downward clamping mechanisms for pressing the carbon fiber raw materials are correspondingly provided on the mold base. A detection element for detecting the cutting tool of the machining center is provided on one side of each rotary downward clamping mechanism, and a controller is also included.

[0007] The above-mentioned special fixture for cutting and forming carbon fiber workpieces, the rotary downward pressing clamping mechanism includes a plurality of accommodating grooves provided on the mold base, and a rotary downward pressing cylinder provided in each accommodating groove and connected to the controller signal, and a pressing member is provided on the rotary downward pressing cylinder.

[0008] In the above-mentioned special fixture for cutting and forming carbon fiber workpieces, the pressing member is a bolt connected to the rotating downward pressure cylinder through a thread, and a nut provided on the bolt.

[0009] In the above-mentioned special fixture for cutting and forming carbon fiber workpieces, the number of the rotating downward pressure cylinders and the number of the detection elements are both eight.

[0010] In the above-mentioned special fixture for cutting and forming carbon fiber workpieces, the detection element is a photoelectric switch.

[0011] The beneficial effect of the pneumatic clamp for cutting and forming carbon fiber workpieces of the present invention is that, by arranging a plurality of corresponding rotary downward pressing clamping mechanisms for pressing the carbon fiber raw material on the mold base 1, and cooperating with the detection element and the controller, the cutting tool of the machining center is avoided to prevent the rotary downward pressing cylinder at that location from hindering the operation of the cutting tool of the machining center, and since the rotary downward pressing cylinders at other locations are still in a state of pressing the carbon fiber raw material, the rotation and reset of a single rotary downward pressing cylinder does not affect the pressing effect of the carbon fiber raw material, neither hinders the operation of the cutting tool of the machining center, nor prevents the displacement of the carbon fiber raw material, thereby ensuring the processing and forming effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 2 for Figure 1 A partial enlarged view of part A. DETAILED DESCRIPTION

[0014] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0015] like Figure 1-2 The figure shows a fixture specifically designed for cutting and forming carbon fiber workpieces. The fixture comprises a die base 1 and a die core 2. The die base 1 is provided with a plurality of corresponding rotary clamping mechanisms for compressing the carbon fiber raw material. Each rotary clamping mechanism is provided with a detection element 3 on one side for detecting the cutting tool in the machining center. The fixture also includes a controller. The detection element is a photoelectric switch. The controller is a PLC.

[0016] The rotary pressing clamping mechanism includes a plurality of receiving grooves 4 provided on the mold base 1, and a rotary pressing cylinder 5 provided in each receiving groove 4 and connected to the controller signal, and a pressing member 6 is provided on the rotary pressing cylinder 5.

[0017] The pressing member is a bolt that is threadedly connected to the rotary pressing cylinder, and a nut 7 that is arranged on the bolt. By arranging the pressing member as a bolt that is threadedly connected to the rotary pressing cylinder, workpieces of different thicknesses can be processed.

[0018] The number of the rotary downward pressure cylinders and the number of the detection elements are both eight.

[0019] The working process of the utility model is that the carbon fiber raw material on the die base is pressed by multiple rotary downward pressure cylinders 5, and the machining center cutting tool cuts the carbon fiber raw material along the die core. When the detection element detects the machining center cutting tool, it sends a signal to the controller, and the controller sends a rotation reset signal to the rotary downward pressure cylinder adjacent to the detection element, so as to avoid the machining center cutting tool running there, and prevent the rotary downward pressure cylinder there from hindering the operation of the machining center cutting tool. Since the rotary downward pressure cylinders at other locations are still in a pressing state on the carbon fiber raw material, the rotary reset of a single rotary downward pressure cylinder does not affect the pressing effect of the carbon fiber raw material, neither hinders the operation of the machining center cutting tool, nor prevents the displacement of the carbon fiber raw material, thereby ensuring the processing and molding effect. When the detection element does not detect the machining center cutting tool, it sends a signal to the controller, and the controller sends a rotation signal to the rotary downward pressure cylinder adjacent to the detection element for pressing again.

[0020] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A special fixture for cutting and forming carbon fiber workpieces, comprising a die base and a die core, characterized in that: A plurality of rotary downward pressing clamping mechanisms for compressing carbon fiber raw materials are correspondingly provided on the mold base, and a detection element for detecting the cutting tool of the machining center is provided on one side of each rotary downward pressing clamping mechanism, and also includes a controller; the rotary downward pressing clamping mechanism includes a plurality of accommodating grooves provided on the mold base, and a rotary downward pressing cylinder provided in each accommodating groove and connected to the controller signal, and a clamping member is provided on the rotary downward pressing cylinder; the clamping member is a bolt connected to the rotary downward pressing cylinder by a thread, and a nut provided on the bolt; the number of the rotary downward pressing cylinders and the detection elements is eight.

2. A special fixture for cutting and forming carbon fiber workpieces according to claim 1, characterized in that: The detection element is a photoelectric switch.

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