阅读说明：本技术 快速搭建复合材料板材制孔平台实现力热现象表征的方法 (Method for rapidly building composite material plate hole making platform to realize force-heat phenomenon characterization ) 是由 潘忠祥 郁佳佳 应志平 吴震宇 于 2021-06-10 设计创作，主要内容包括：本发明涉及一种快速搭建复合材料板材制孔平台实现力热现象表征的方法,其包括如下步骤：1),将滚珠丝杠直线导轨滑台模组底面与底板连接固定；2),将钻头安装于电主轴上,电主轴夹具与夹具Ⅰ连接固定于滑块上；3),将测力传感器与夹具Ⅱ、夹持试样的L型夹具连接固定,测力传感器连接电脑传输测力数据；4),确定复合材料板材钻孔位置,调整试样距离,使复合材料板与水平桌面保持竖直；5),将红外热成像仪置于钻孔轴向进给方向的一端,或复合材料板侧,连接电脑传输温度数据；6),制孔周围埋设的热电偶丝同时收集温度数据。本发明能实现多参数加工条件,操作简单,灵活搬运,成本合理,能满足复合材料板材钻孔加工试验需求。(The invention relates to a method for rapidly building a composite material plate hole making platform to realize force-heat phenomenon characterization, which comprises the following steps: 1) connecting and fixing the bottom surface of the sliding table module of the ball screw linear guide rail with the bottom plate; 2) a drill bit is arranged on an electric spindle, and an electric spindle clamp and a clamp I are connected and fixed on a sliding block; 3) connecting and fixing a force measuring sensor with a clamp II and an L-shaped clamp for clamping a sample, and connecting the force measuring sensor with a computer to transmit force measuring data; 4) determining the drilling position of the composite material plate, and adjusting the distance of the sample to ensure that the composite material plate is vertical to the horizontal desktop; 5) placing an infrared thermal imager at one end of the axial feeding direction of the drill hole or on the side of the composite material plate, and connecting a computer to transmit temperature data; 6) and simultaneously collecting temperature data by thermocouple wires embedded around the hole. The invention can realize multi-parameter processing conditions, has simple operation, flexible transportation and reasonable cost, and can meet the requirements of drilling processing tests of composite material plates.)

1. The method for rapidly building the composite material plate hole making platform to realize the characterization of the force-heat phenomenon is characterized by comprising the following steps of: the device comprises an electric main shaft, a drill bit, an electric main shaft fixture, a ball screw linear guide rail sliding table module, a sliding block, a stepping motor, a bottom plate, an L-shaped fixture, a cover plate, a fixture I, a fixture II, a force measuring sensor, an infrared thermal imager and a thermocouple; the ball screw linear guide rail sliding table module is characterized in that a stepping motor is arranged on one side of the ball screw linear guide rail sliding table module and is driven by the stepping motor; the sliding block is matched with the ball screw linear guide rail sliding table module and is driven by the ball screw linear guide rail sliding table module;

the device for characterizing the hole making and the force-heat phenomenon of the composite material plate comprises the following steps:

(1) connecting and fixing the bottom surface of the sliding table module of the ball screw linear guide rail with the bottom plate;

(2) a drill bit is arranged on the electric spindle, the electric spindle is moved to a proper position of an electric spindle clamp, a bolt is screwed down to realize clamping, and the electric spindle clamp and the clamp I are connected and fixed on a sliding block;

(3) the threaded hole on the lower surface of the force sensor is connected with a clamp II through a bolt and is fixed on the bottom plate, the threaded hole on the upper surface of the force sensor is connected and fixed with an L-shaped clamp for clamping a sample, and the force sensor is connected with a computer to transmit force measurement data;

(4) determining the drilling position of the composite material plate, adjusting the distance of a sample, corresponding the upper cover plate and the lower cover plate to the L-shaped clamp, and simultaneously screwing the left bolt and the right bolt for clamping to ensure that the composite material plate is vertical to the horizontal desktop;

(5) placing an infrared thermal imager at one end of the axial feeding direction of the drill hole or on the side of the composite material plate, and connecting a computer to transmit temperature data;

(6) and simultaneously collecting temperature data by thermocouple wires embedded around the hole.

2. The method for realizing the force-heat phenomenon characterization by rapidly building the composite material plate hole-making platform according to claim 1, is characterized in that: and a rectangular window for observing the drilling phenomenon of the composite plate is reserved in the center of the L-shaped clamp.

3. The method for realizing the force-heat phenomenon characterization by rapidly building the composite material plate hole-making platform according to claim 1, is characterized in that: the composite material plate and the infrared thermal imager are located on different sides of the L-shaped clamp.

4. The method for realizing the force-heat phenomenon characterization by rapidly building the composite material plate hole-making platform according to claim 1, is characterized in that: the force measuring sensor is a three-way or six-way force measuring sensor, and the axial feeding direction is the direction of the measured force and the moment; the real-time force data during drilling is obtained by transmitting the real-time force data to a computer.

5. The method for realizing the force-heat phenomenon characterization by rapidly building the composite material plate hole-making platform according to claim 1, is characterized in that: the infrared thermal imaging camera is erected on one side of the drilling outlet of the composite material plate or one side of the composite material plate, and measured temperature data are stored in a computer.

6. The method for realizing the force-heat phenomenon characterization by rapidly building the composite material plate hole-making platform according to claim 1, is characterized in that: and the thermocouple is embedded at a certain distance from the edge of the drilled hole, measures the temperature distribution around the drilled hole, and compares the temperature distribution with the data measured by the infrared thermal imager for calibration.

[ technical field ] A method for producing a semiconductor device

The invention relates to a method for quickly building a composite material plate hole making platform to realize force-heat phenomenon characterization, which is applied to composite material hole making research and belongs to the technical field of composite material drilling sample processing devices.

[ background of the invention ]

The composite material plate has the characteristics of light weight, high strength, strong corrosion resistance and the like, and promotes the application of the composite material plate in the fields of aerospace, automobiles, high-speed trains and the like. However, when the composite material member is assembled, secondary machining is mostly required to meet the precision requirement during assembly, wherein drilling is one of the most important machining modes. For composite material drilling, ensuring the drilling quality is a prerequisite to achieve high load-bearing performance and reliability of the component.

Drilling force and temperature are the most important factors affecting the quality of the drilled hole, which directly leads to the formation of damage. When the composite material is drilled, most of damage is concentrated on the surface of the outlet of the drilled hole, and the surface appearance, the temperature characteristics and the stress condition of the composite material are particularly important for understanding the damage mechanism; in addition, in order to better explore the temperature change rule in the drilling process, the measurement of the temperature of the composite plate side also becomes a key point.

At present, the research aiming at the composite material drilling experiment is mainly carried out on a numerical control lathe and a milling machine in a machining center, the defects of huge equipment size, poor machining environment, high cost, limited machining place and the like exist, and the method cannot be effectively used for basic research in a laboratory. In addition, stress or thermal phenomena during drilling are independently studied, and the influence of machining parameters on the drilling of the composite material plate cannot be comprehensively and comprehensively studied.

Therefore, in order to solve the above problems, it is necessary to provide an innovative method for quickly building a composite material plate hole making platform to realize the characterization of the force-heat phenomenon, so as to overcome the defects in the prior art.

[ summary of the invention ]

The invention aims to provide a method for quickly building a composite plate hole making platform to realize the representation of a force-heat phenomenon, which can meet the requirements of a drilling processing test of a composite plate so as to promote the research on the processing performance of the composite plate.

In order to achieve the purpose, the invention adopts the technical scheme that: a method for rapidly building a composite material plate hole making platform to realize force-heat phenomenon characterization adopts a composite material plate drilling and characterization device, and the device comprises an electric main shaft, a drill bit, an electric main shaft fixture, a ball screw linear guide rail sliding table module, a sliding block, a stepping motor, a bottom plate, an L-shaped fixture, a cover plate, a fixture I, a fixture II, a force measuring sensor, an infrared thermal imager and a thermocouple; the ball screw linear guide rail sliding table module is characterized in that a stepping motor is arranged on one side of the ball screw linear guide rail sliding table module and is driven by the stepping motor; the sliding block is matched with the ball screw linear guide rail sliding table module and is driven by the ball screw linear guide rail sliding table module;

the device for characterizing the hole making and the force-heat phenomenon of the composite material plate comprises the following steps:

(1) connecting and fixing the bottom surface of the sliding table module of the ball screw linear guide rail with the bottom plate;

(2) a drill bit is arranged on the electric spindle, the electric spindle is moved to a proper position of an electric spindle clamp, a bolt is screwed down to realize clamping, and the electric spindle clamp and the clamp I are connected and fixed on a sliding block;

(3) the threaded hole on the lower surface of the force sensor is connected with a clamp II through a bolt and is fixed on the bottom plate, the threaded hole on the upper surface of the force sensor is connected and fixed with an L-shaped clamp for clamping a sample, and the force sensor is connected with a computer to transmit force measurement data;

(4) determining the drilling position of the composite material plate, adjusting the distance of a sample, corresponding the upper cover plate and the lower cover plate to the L-shaped clamp, and simultaneously screwing the left bolt and the right bolt for clamping to ensure that the composite material plate is vertical to the horizontal desktop;

(5) placing an infrared thermal imager at one end of the axial feeding direction of the drill hole or on the side of the composite material plate, and connecting a computer to transmit temperature data;

(6) and simultaneously collecting temperature data by thermocouple wires embedded around the hole.

The method for rapidly building the composite material plate hole making platform to realize the force-heat phenomenon characterization further comprises the following steps: and a rectangular window for observing the drilling phenomenon of the composite plate is reserved in the center of the L-shaped clamp.

The method for rapidly building the composite material plate hole making platform to realize the force-heat phenomenon characterization further comprises the following steps: the composite material plate and the infrared thermal imager are located on different sides of the L-shaped clamp.

The method for rapidly building the composite material plate hole making platform to realize the force-heat phenomenon characterization further comprises the following steps: the force measuring sensor is a three-way or six-way force measuring sensor, and the axial feeding direction is the direction of the measured force and the moment; the real-time force data during drilling is obtained by transmitting the real-time force data to a computer.

The method for rapidly building the composite material plate hole making platform to realize the force-heat phenomenon characterization further comprises the following steps: the infrared thermal imaging camera is erected on one side of the drilling outlet of the composite material plate or one side of the composite material plate, and measured temperature data are stored in a computer.

The method for rapidly building the composite material plate hole making platform to realize the force-heat phenomenon representation further comprises the following steps: and the thermocouple is embedded at a certain distance from the edge of the drilled hole, measures the temperature distribution around the drilled hole, and compares the temperature distribution with the data measured by the infrared thermal imager for calibration.

Compared with the prior art, the invention has the following beneficial effects:

1. the method for quickly building the composite material plate hole making platform to realize the force-heat phenomenon representation realizes quick building of a desktop-level small-sized composite material drilling platform, realizes multi-parameter processing conditions, and is simple to operate, flexible to carry and reasonable in cost.

2. The method for rapidly building the composite material plate hole making platform to realize the characterization of the force-heat phenomenon realizes the real-time monitoring of the axial force, the torque and the temperature value in the composite material plate hole drilling process, and is favorable for comprehensively investigating the influence of the processing parameters on the drilling of the composite material plate in the aspect of force and heat.

3. According to the method for rapidly building the composite material plate hole making platform to realize the force-heat phenomenon characterization, the designed composite material plate clamping device is utilized, and the temperature of the side of the composite material plate can be measured and the surface temperature value of the outlet of a drilled hole can be obtained through the infrared thermal imager.

[ description of the drawings ]

FIG. 1 is a perspective view of the composite plate drilling and characterization device of the present invention.

Fig. 2 is a partial perspective view of fig. 1.

Fig. 3 is a schematic view of an infrared thermal imager located on the side of the composite plate drill exit.

Fig. 4 is a schematic view of an infrared thermal imager on one side of a composite panel.

FIG. 5 is a schematic view of a thermocouple disposed on a composite plate.

[ detailed description ] embodiments

Please refer to fig. 1 to 5 of the specification, which illustrate a composite material plate drilling and characterization device according to the present invention, and the device is used for rapidly building a drilling platform of a composite material plate 1 and implementing force-heat characterization. The drilling tool is composed of an electric spindle 7, a drill bit 5, an electric spindle fixture 6, a ball screw linear guide rail sliding table module 11, a sliding block 9, a stepping motor 10, a bottom plate 12, an L-shaped fixture 3, a cover plate 2, a fixture I8, a fixture II 4, a force measuring sensor 13, an infrared thermal imager 14, a thermocouple 15 and the like.

The drill 5 is mounted on an electric spindle 7, and is driven by the electric spindle 7 to drill the composite material plate 1. The clamping diameter of the electric spindle clamp 6 is matched with that of the electric spindle 7, a gap is formed in the middle of the top end of the electric spindle clamp 6, and the electric spindle clamp is clamped and fixed with the electric spindle 7 through screwing two bolts. Two sides of the electric spindle clamp 6 are respectively provided with 2 through holes which are fixed with four central threaded holes on the clamp I8.

And the stepping motor 10 is arranged on one side of the ball screw linear guide rail sliding table module 11. The stepping motor 10 drives a lead screw in the ball screw linear guide rail sliding table module 11 to rotate. The sliding block 9 is matched with the ball screw linear guide rail sliding table module, and is driven by the ball screw linear guide rail sliding table module 11 to feed axially, so that the drill bit 5 moves axially at a certain speed. And 4 threaded holes are respectively formed in two ends of the sliding block 9 and are fixedly connected with 8 threaded holes in two sides of the clamp I8 through bolts. And 8 movable T-shaped nuts are arranged at the bottom of the ball screw linear guide rail sliding table module 11 and are fixed with the through hole of the bottom plate 12 through a bolt.

The cover plate 2 is divided into an upper cover plate and a lower cover plate, and two ends of each cover plate 2 are respectively provided with a through hole. A rectangular window 16 is reserved in the center of the L-shaped clamp 2 and used for capturing phenomena during drilling of the composite material plate 1, and through holes are formed in the periphery of each rectangular window 16.

When the composite material plate 1 is clamped, firstly determining the drilling position of the plate, and adjusting the distance of a sample; the upper cover plate 2 is arranged on the outer side of the composite material plate 1 and corresponds to the through hole of the L-shaped clamp 3, the left bolt and the right bolt are simultaneously screwed down, and the clamping material is fixed by the lower cover plate 2. The cover plate 2 is made of stainless steel, so that certain thickness and length-width ratio are met, and bending deformation is avoided when the bolt is fixed.

The upper surface of the force measuring sensor 13 is fixedly connected with the lower part of the L-shaped clamp 3 through bolts, and the lower surface of the force measuring sensor is fixedly connected with the clamp II 4 through bolts. And the peripheral threaded holes of the clamp II 4 are bolted with the preset mounting holes of the base plate 12, so that the drilling is ensured not to deviate. The X or Y direction of the load cell 13 is consistent with the drilling axial feeding direction so as to accurately measure the force and torque values in the feeding direction. In the present embodiment, the load cell 13 is a three-way or six-way load cell, and the axial feeding direction is the direction of the measured force and moment; the real-time force data during drilling is obtained by transmitting the real-time force data to a computer.

The thermal infrared imager 14 has two observation modes, and the measured temperature data is stored in a computer. One is just drilling the outlet of the composite material plate 1 to obtain the temperature distribution of the outlet surface, the thermal infrared imager 14 and the composite material plate 1 are positioned on different sides of the L-shaped fixture 3, so that the damage of chips to the thermal infrared imager 14 is effectively reduced, and the other is to mount the thermal infrared imager 14 at the side end of the composite material plate 1 to capture the time-varying rule of the temperature in the drilling process. The composite material plate and the infrared thermal imager are located on different sides of the L-shaped clamp.

When the side drilling temperature of the composite plate 1 is observed, the distance p between the edge of the hole and the side of the composite plate 1 is approximately 1-2mm, the distance between adjacent holes is q, and the size of the hole is more than 2 times of the diameter of the hole. And (3) observing the temperature distribution around the hole by using a thermocouple 14, drilling small holes with the diameter of about 1mm and the depth of 1mm at certain intervals at the edge of the hole, embedding the thermocouple 15, measuring the temperature distribution around the hole, and comparing and calibrating the temperature distribution with the data measured by the infrared thermal imager 14.

The device for characterizing the hole making and the force-heat phenomenon of the composite material plate comprises the following steps:

(1) connecting and fixing the bottom surface of the ball screw linear guide rail sliding table module 11 with the bottom plate 12;

(2) the drill bit 5 is arranged on the electric spindle 7, the electric spindle 7 is moved to a proper position of the electric spindle clamp 6, the bolt is tightened to realize clamping, and the electric spindle clamp 6 and the clamp I8 are connected and fixed on the sliding block 9;

(3) the threaded hole in the lower surface of the force measuring sensor 13 is connected with the clamp II 4 through a bolt and is fixed on the bottom plate 12, the threaded hole in the upper surface of the force measuring sensor is connected and fixed with the L-shaped clamp 3 for clamping the sample 1, and the force measuring sensor 13 is connected with a computer for transmitting force measuring data;

(4) determining the drilling position of the composite material plate 1, adjusting the distance of a sample, enabling the upper cover plate 2 and the lower cover plate 2 to correspond to the L-shaped clamp 3, and simultaneously screwing the left bolt and the right bolt for clamping to enable the composite material plate 1 to be vertical to the horizontal desktop;

(5) placing an infrared thermal imager 14 at one end of the axial feeding direction of the drill hole or at the side of the composite material plate 1, and connecting a computer to transmit temperature data;

(6) and simultaneously collecting temperature data by the thermocouple wires 15 embedded around the hole, and comparing and calibrating the temperature data with data measured by an infrared thermal imager.

In summary, the fast-building composite material plate hole making platform provided by the invention realizes the characterization of the force-heat phenomenon, and is obtained by the following steps: after the composite material plate 1 is clamped, the electric spindle 7 supplies a drill bit 5 with a certain rotating speed, the slide block 9 of the ball screw linear guide rail sliding table module 11 supplies the drill bit 5 with a certain feeding speed, the composite material plate 1 is drilled, and the drilling force data obtained through real-time measurement of the force measuring sensor 13 and the temperature data captured by the thermal infrared imager 14 and the thermocouple 15 are used for comprehensively analyzing and investigating the drilled composite material plate 1.

The above embodiments are merely preferred embodiments of the present disclosure, which are not intended to limit the present disclosure, and any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present disclosure, should be included in the scope of the present disclosure.