CN114594811A - Temperature adjusting method, device, equipment and storage medium in material laying process - Google Patents
Temperature adjusting method, device, equipment and storage medium in material laying process Download PDFInfo
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- CN114594811A CN114594811A CN202011412844.9A CN202011412844A CN114594811A CN 114594811 A CN114594811 A CN 114594811A CN 202011412844 A CN202011412844 A CN 202011412844A CN 114594811 A CN114594811 A CN 114594811A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
- G05D23/22—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element being a thermocouple
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/38—Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
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Abstract
The embodiment of the invention discloses a temperature adjusting method, a device, equipment and a storage medium in a material laying process, wherein when a laying head is monitored to lay a material according to the preset working temperature and laying path of each working area, the corresponding material temperature of the material after compaction at the position of each thermocouple temperature measuring head is obtained, and each material temperature is respectively collected through the corresponding thermocouple temperature measuring head; comparing the temperature of each material with the preset target temperature of the corresponding working area respectively; the working temperature of each working area is adjusted according to each comparison result so as to control the heater of the laying head to work at the adjusted working temperature, the problem that the temperature is unqualified only according to the fixed temperature during working is solved, the working temperature of the heater is adjusted flexibly according to the actual temperature of the material, the temperature of the material is collected by the thermocouple temperature measuring head, errors generated in the temperature collection process are avoided, and the part qualification rate is improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of automatic laying, in particular to a temperature adjusting method, a temperature adjusting device, temperature adjusting equipment and a storage medium in a material laying process.
Background
When the automatic laying equipment is used for laying and pasting the carbon fiber prepreg, the fiber strips and the tows need to be heated to enable the fiber strips and the tows to have sufficient viscosity. However, too high temperature can cause the material to smoke and solidify, and the temperature is beyond the specification requirement, so that the determination and detection of the temperature in the automatic laying process are very important.
In the prior art, a heater of a laying head works according to temperature parameters after the temperature parameters are set, so as to heat a material. However, after the fixed temperature parameter is set, the temperature of the material after being compacted cannot reach the set temperature parameter due to heat loss, and the temperature of the material after being compacted is too high due to too high temperature parameter setting, so that the formed part is unqualified or has defects.
Disclosure of Invention
The invention provides a temperature adjusting method, a device, equipment and a storage medium in a material laying process, which are used for adjusting the temperature of a heater in the material laying process.
In a first aspect, embodiments of the present invention provide a method for temperature adjustment in a material placement process, where the method for temperature adjustment in a material placement process includes:
when the laying head is monitored to lay the material according to the preset working temperature and the laying path of each working area, acquiring the corresponding material temperature of the material after compaction at the position of each thermocouple temperature measuring head, wherein the material temperature is acquired through the corresponding thermocouple temperature measuring head;
comparing the temperature of each material with a preset target temperature of the corresponding working area;
and adjusting the working temperature of each working area according to each comparison result so as to control the heater of the laying head to work at the adjusted working temperature.
In a second aspect, an embodiment of the present invention further provides a temperature adjustment device in a material laying process, where the temperature adjustment device in the material laying process includes:
the acquisition module is used for acquiring the corresponding material temperature of the material after compaction at the position of each thermocouple temperature measuring head when the laying head lays the material according to the preset working temperature and the laying path of each working area, and the material temperature is acquired through the corresponding thermocouple temperature measuring head respectively;
the comparison module is used for comparing the temperature of each material with the preset target temperature of the corresponding working area;
and the adjusting module is used for adjusting the working temperature of each working area according to each comparison result so as to control the heater of the laying head to work at the adjusted working temperature.
In a third aspect, an embodiment of the present invention further provides an apparatus, where the apparatus includes:
one or more thermocouple temperature probes for collecting material temperature;
one or more processors;
a storage device for storing one or more programs,
when executed by the one or more processors, cause the one or more processors to implement a method of temperature adjustment in a material placement process according to any of the embodiments of the present invention.
In a fourth aspect, embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, which when executed by a processor, implements a method of temperature adjustment in a material placement process as described in any one of the embodiments of the present invention.
The embodiment of the invention provides a temperature adjusting method, a device, equipment and a storage medium in a material laying process, wherein when a laying head is monitored to lay a material according to the preset working temperature and laying path of each working area, the corresponding material temperature of the material after compaction at the position of each thermocouple temperature measuring head is obtained, and each material temperature is respectively collected through the corresponding thermocouple temperature measuring head; comparing the temperature of each material with a preset target temperature of the corresponding working area; the working temperature of each working area is adjusted according to each comparison result so as to control the heater of the laying head to work at the adjusted working temperature, thereby solving the problem that the temperature of the compacted material is not qualified because the heater of the laying equipment can only work at the set fixed temperature in the process of heating the material, by collecting the material temperature in the material compaction process, the material temperature is respectively compared with the preset target temperature of the corresponding working area, the working temperature of each working area is adjusted according to each comparison result to realize the adjustment of the working temperature of the heater, thereby achieving the effect of flexibly adjusting the working temperature of the heater according to the actual temperature of the material, the temperature of the material is collected through the thermocouple temperature measuring head, the accurate temperature after the material is compacted is obtained, errors generated in the temperature collecting process are avoided, and the part qualified rate is improved.
Drawings
FIG. 1 is a flow chart of a method of temperature adjustment during material placement in accordance with a first embodiment of the present invention;
FIG. 2 is a flow chart of a method of temperature adjustment during material placement according to a second embodiment of the present invention;
FIG. 3 is a flowchart of an implementation of determining a laying path and positions of thermocouple heads in a temperature adjustment method during material laying according to a second embodiment of the present invention;
FIG. 4 is a schematic view of a laying path in a temperature adjustment method in a material laying process according to a second embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a temperature adjustment device in a material placement process according to a third embodiment of the present invention;
fig. 6 is a schematic structural diagram of an apparatus according to a fourth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a flowchart of a temperature adjustment method in a material placement process according to an embodiment of the present invention, where this embodiment is applicable to a case of adjusting a working temperature of a heater in the material placement process, and the method may be executed by a temperature adjustment device in the material placement process, and specifically includes the following steps:
and S110, when the laying head is monitored to lay the material according to the preset working temperature and the laying path of each working area, acquiring the corresponding material temperature of the material after the material is compacted at the position of each thermocouple temperature measuring head, wherein the material temperature is acquired through the corresponding thermocouple temperature measuring head respectively.
In the present embodiment, the working area is understood to be the area of the laying head of the laying device on which the material is to be laid during operation, and may be a large laying area divided into a plurality of small working areas, for example, the laying area is 50cm × 50cm, which is divided into 5 working areas, and each 10cm × 50cm is a working area. The working temperature can be understood as the temperature at which the heater of the laying head works; the laying path can be understood as the path of the laying head during the material laying work, the laying path at least comprises the laying direction of each laying layer, and the temperature measuring line connected with the thermocouple temperature measuring head is perpendicular to the laying direction of the next laying layer; the material temperature is understood to be the temperature at which the material is compacted on the thermocouple surface.
Presetting the working temperature of the laying head corresponding to each working area, for example, the working temperature of the working area 1 is 80 ℃, and the working temperature of the working area 2 is 83 ℃; the laying path is determined before laying, the shape (type) of the part finally laid and molded needs to be known before laying, the digital-analog structure of the part is correspondingly obtained after the shape or type of the part is known, and the digital-analog structure of the part is subjected to simulation analysis through simulation software to obtain the laying path. When the laying head carries out laying work of materials, the materials are heated through the heater, then the materials are laid on a tool, the materials are compacted through the compacting mechanism, and the thermocouple temperature measuring head is arranged in advance before the materials are laid for collecting the temperature of the materials; when the condition that the laying head heats the material according to the preset working temperature of each working area and lays the material according to the laying path is monitored, the thermocouple temperature measuring heads are used for collecting the corresponding material temperature of the material after the material is compacted at the positions of the thermocouple temperature measuring heads. Namely, when the laying head lays the material and is laid to the position where the thermocouple temperature measuring head is placed, the material is compacted on the surface of the thermocouple, and the thermocouple temperature measuring head collects the temperature of the material.
The thermocouple is used as a temperature measuring element to measure the material temperature, so that the surface temperature of the compacted material can be directly measured and is in direct contact with a measured object, the influence of the temperature or distance of an intermediate medium (air) is avoided, the thermal response time is short, and the temperature measurement is more accurate; the thermocouple can be arranged on the surface of various materials with complex profiles, is not influenced by a laying path, and has no risk of collision and interference with equipment; after the thermocouples are arranged, an operator can check the measurement data in a safe working area, and potential safety hazards of the operator are avoided.
Step S120, comparing the temperature of each material with a preset target temperature of the corresponding working area.
In this embodiment, the preset target temperature may be a target value of a temperature preset according to a process requirement of each part, and temperature values that each part may need to reach at different positions are different, so that different values may be set for the preset target temperatures of different working areas according to the process requirement in practical application, or the same value may be set. And comparing the material temperature corresponding to each working area with a preset target temperature, and further judging whether the material temperature meets the process requirements.
And S130, adjusting the working temperature of each working area according to each comparison result so as to control the heater of the laying head to work at the adjusted working temperature.
Comparing the material temperature with a preset target temperature of a corresponding working area, wherein when the material temperature is higher than the preset target temperature, the working temperature is too high, and the working temperature needs to be reduced; when the material temperature is lower than the preset target temperature, the working temperature is too low, and the working temperature needs to be increased. And controlling the heater of the laying head to work according to the adjusted working temperature.
The embodiment of the invention provides a temperature adjusting method in a material laying process, which comprises the steps of obtaining corresponding material temperatures of materials after compaction at positions of thermocouple temperature measuring heads by monitoring that a laying head lays the materials according to preset working temperatures and laying paths of all working areas, wherein the material temperatures are respectively collected through the corresponding thermocouple temperature measuring heads; comparing the temperature of each material with a preset target temperature of the corresponding working area; the working temperature of each working area is adjusted according to each comparison result so as to control the heater of the laying head to work at the adjusted working temperature, the problem that the temperature of the heater of the laying equipment is unqualified after material compaction due to the fact that the heater of the laying equipment can only work according to the set fixed temperature in the process of heating the material is solved, the temperature of each material is respectively compared with the preset target temperature of the corresponding working area by acquiring the temperature of the material in the material compaction process, the working temperature of each working area is adjusted according to each comparison result so as to realize the adjustment of the working temperature of the heater, the effect of flexibly adjusting the working temperature of the heater according to the actual temperature of the material is achieved, the accurate temperature after material compaction is acquired by acquiring the temperature of the material through the thermocouple temperature measuring head, the influence of the temperature or the distance of an intermediate medium is avoided, and the thermal response time is fast, the temperature measurement is more accurate; the thermocouple can be arranged on the surface of various materials with complex profiles, is not influenced by a laying path, and has no risk of collision and interference with equipment; the operator can check the measurement data in a safe working area, and the safety of the operator is improved.
Example two
Fig. 2 is a flowchart of a temperature adjustment method in a material placement process according to a second embodiment of the present invention. The technical scheme of the embodiment is further refined on the basis of the technical scheme, and specifically mainly comprises the following steps:
and step S210, determining the laying path and the positions of the thermocouple temperature measuring heads.
And the simulation software determines the laying path of the laying head according to the part to be finally laid and molded so as to control the laying head to lay the material according to the laying path. The position of the thermocouple temperature measuring head can be determined according to the laying path, and one or more points in the laying path are selected to place the thermocouple temperature measuring head.
Further, fig. 3 provides a flowchart for determining the position of the laying path and the thermocouple thermometers in the temperature adjustment method in the material laying process, and the determining the position of the laying path and the thermocouple thermometers may specifically include the following steps:
and S211, acquiring a part digital model of the part to be laid.
In the present embodiment, the part to be laid is understood to be the part that is to be formed finally after the material is laid, for example, a cube, a nut, etc.; the part digifax can be understood as a three-dimensional drawing of the part and is used for showing the three-dimensional structure of the part.
Before material laying is carried out, firstly, a part to be laid is determined, and after the part to be laid is determined, a corresponding part digital model is also determined, a large number of part digital models of different types and shapes are stored in a computer in advance, and a user only needs to directly select the part digital model corresponding to the part to be laid by dragging, clicking and the like; or the user draws the part digital model of the part to be laid by himself.
And S212, determining a laying path according to the part digital model and the strip parameters of the laying equipment.
In the present embodiment, the strip parameters can be understood as the width, thickness, laying direction, etc. of the strip of laid material.
The shape and the structure of the finally paved part to be paved can be determined through the part digifax, and the number of layers of the paved part to be paved and how each layer of the strip is paved are determined by combining the strip parameters, so that a paving path comprising a paving starting point, the number of paving layers and the paving direction of each paving layer is formed. For example a cube with a 30cm x 30cm area, the strip parameters for laying the strip are: the laying width is 1cm, the laying thickness is 1cm, any one side is selected in the laying direction, and the laying is carried out in parallel to the side. The number of layers laid is 30, each layer is laid with 30 strips, and after the first strip is laid parallel to one side, the next strip is laid. By way of example, fig. 4 provides a schematic diagram of a laying path in a temperature regulation method in a material laying process, in which a square 1 is a part obtained by laying a layer of material, a strip 11 is a strip laid from side a to side b and parallel side c, and a strip 12 is a strip laid from side b to side a and parallel side c (the strip 12 can also be another strip laid from side a to side b and parallel side c), and the strip is laid once until one layer is laid, and after one layer is laid, the next layer is laid until a laying area containing the part to be laid is obtained.
Step S213, determining a laying area containing the part to be laid according to the part digital model, and determining the area of the laying area excluding the part to be laid as a margin area.
In the present embodiment, the placement area may be understood as an area range where the material is placed, for example, the part to be placed is a 30cm × 30cm × 30cm cube, and the placement area may be set to be a 40cm × 40cm × 40cm cube; the margin area can be understood as an area where a part to be laid is removed in the laying area, compared with the area where the part to be laid is redundant, when the part to be laid is formed by laying materials, the right material is not directly laid, but a part of materials are laid more than the structure of the part to be laid, the redundant materials are removed after the laying is completed, the part to be laid is obtained, and the problem that the materials are not qualified due to the fact that the corner is not laid neatly and the like due to errors or machine equipment when the right material is laid is solved.
Determining a laying area of a laying material according to a three-dimensional structure of a part shown by a part digital model, determining an area of the laying area, from which the part to be laid is removed, as a margin area, for example, the part to be laid is a cube of 30cm × 30cm × 30cm, the laying area is a cube of 40cm × 40cm × 40cm, determining an area of 5cm from the outside to the inside of each surface of the laying area as the margin area, and the remaining cube of 30cm × 30cm × 30cm is the part to be laid; or the margin area can be selected, namely a part to be laid can be cut out after the laying is finished in the laying area, and the remaining area is the margin area.
S214, selecting all temperature measuring points from the allowance area according to the laying path, controlling the laying equipment to carry out physical position identification on all the temperature measuring points, wherein the physical positions corresponding to all the temperature measuring points correspond to the positions of all the thermocouple temperature measuring heads.
In this embodiment, the temperature measurement point may be understood as a physical position where the temperature of the material is measured, and the physical position corresponding to the temperature measurement point corresponds to the position of each thermocouple temperature measurement head, that is, the thermocouple temperature measurement head is placed on each temperature measurement point. And selecting a temperature measuring point from the allowance area, and the finally formed part to be laid cannot be influenced after the material is compacted. One or more temperature measuring points are selected from the margin region according to the laying direction (strip direction) in the laying path and the width of each laying (strip width), for example, the temperature measuring points are selected within one strip width in the laying direction, the obtained temperature measuring points do not span two strips, and when the thermocouple temperature measuring head is placed at the temperature measuring points, the temperature measuring line connected with the thermocouple temperature measuring head is placed perpendicular to the laying direction (strip direction) of the next laying layer. When a thermocouple temperature measuring head is placed at a temperature measuring point, the thermocouple temperature measuring head and a temperature measuring line are fixed on the surface of a material to be laid by using a blue high-temperature pressure-sensitive adhesive tape, and the measuring end of the thermocouple is tightly attached to the surface of the material; the temperature measuring line is arranged perpendicular to the laying direction of the next laying layer, cannot be wound and cannot be bent to more than 90 degrees during fixing. The thermocouple temperature measuring line is connected with the junction box, and the positive and negative poles of the thermocouple are connected with the positive and negative poles of the secondary instrument in the junction box by a screwdriver.
Further, the physical position identification of each temperature measuring point by the control of the placement equipment can be implemented by the following modes: generating a point location program according to the temperature measuring points; and controlling the laying equipment to run the point location program so as to realize the position identification of the temperature measuring point.
In this embodiment, the point location program may be understood as a computer program for marking the temperature measurement point. After the laying equipment runs the point location program, the position of the temperature measuring point can be correspondingly displayed on the tool in the modes of infrared rays and the like.
Step S220, when the laying head is monitored to lay the material according to the preset working temperature and the laying path of each working area, obtaining the corresponding material temperature of the material after compaction at the position of each thermocouple temperature measuring head, wherein the material temperature is respectively collected through the corresponding thermocouple temperature measuring head.
The laying equipment runs a laying program to lay, when a laying head passes through a thermocouple temperature measuring end, the heated material is compacted on the surface of a thermocouple, a temperature secondary instrument measures the temperature of the material, the reading is transmitted to a display instrument in a wireless transmission mode, and a craftsman checks the temperature data of the compacted material in a safe working area.
Step S230, comparing the material temperatures with preset target temperatures of the corresponding working areas.
Step 240, judging whether the difference value between the material temperature and the preset target temperature is within a preset temperature threshold range, if so, executing step 250; otherwise, step S260 is performed.
And S250, not adjusting the working temperature in the corresponding working area, and controlling the heater of the laying head to work according to the original working temperature.
And S260, determining a temperature adjustment value according to a preset temperature adjustment strategy, and controlling the working temperature in the corresponding working area to reduce or increase the temperature adjustment value so as to control the heater of the laying head to work at the adjusted working temperature.
In this embodiment, the preset temperature threshold range may be understood as a preset temperature error range, which may be 0 ℃, 1 ℃, 2 ℃ …; the preset temperature adjustment strategy can be understood as a preset temperature adjustment method, which can be a fixed value adjustment, a table lookup manner determination adjusted temperature value, a formula calculation adjusted temperature value, and the like; the temperature adjustment value can be understood as a value that the operating temperature needs to be changed, and can be a fixed value determined by human experience, or a value dynamically determined according to different differences.
When the difference value between the material temperature and the preset target temperature is within the preset temperature threshold range, the material temperature is equal to the preset target temperature within the error allowable range, and at the moment, the working temperature of the heater does not need to be adjusted. When the difference value between the material temperature and the preset target temperature is not within the preset temperature threshold range, the working temperature needs to be adjusted, and the temperature adjustment value can be fixed according to a preset temperature adjustment strategy, and the temperature adjustment value is increased or decreased every time; or according to a difference value lookup table of the material temperature and the preset target temperature, determining a corresponding temperature adjustment value; or a calculation formula can be predetermined, and the temperature adjustment value can be calculated according to the material temperature and the preset target temperature. After the temperature adjustment value is determined, when the temperature of the material is higher than a preset target temperature, controlling the working temperature in the corresponding working area to reduce the temperature adjustment value; and when the temperature of the material is lower than the preset target temperature, controlling the working temperature in the corresponding working area to increase the temperature adjustment value.
In the actual material laying process, after the material is laid for the first time and the temperature of the material is collected, the difference value between the temperature of the material and the preset target temperature is not within the preset temperature threshold range, and the working temperature is adjusted. At the moment, the material can be continuously laid according to the adjusted working temperature, the laid strip can be removed and laid again, when the material is laid again, the material temperature is obtained again, and the laying is continuously carried out until the difference value between the material temperature and the preset target temperature is within the preset temperature threshold value range; and when the material is laid at the position of the next thermocouple temperature measuring head, continuously collecting the temperature of the material and correspondingly adjusting the working temperature.
Further, the method further comprises: when the difference value between each material temperature and each corresponding preset target temperature is within a preset temperature threshold range, storing each corresponding working temperature to enable the laying head to work in a corresponding working area according to the working temperature until a surplus part containing the part to be laid is formed after the material laying is finished.
In the present embodiment, the overdose part is understood to be a part which contains the part to be laid and the excess material. When the difference value between each material temperature and each corresponding preset target temperature is within the preset temperature threshold range, the working temperature of the working area just can heat the material to the preset target temperature, the corresponding working temperature is stored, and the heater is controlled in the working area to work by using the working temperature. Usually, when one layer of laying is finished, the working temperatures of all the working areas are adjusted correspondingly, and when the next laying layer carries out material laying, the heater is controlled to work according to the stored working temperatures of all the working areas. And the thermocouple temperature measuring head can be placed again to collect the material temperature to adjust the working temperature until the material is completely laid to form a residual part containing the part to be laid.
Further, the method further comprises: and carrying out thermosetting on the allowance part, and removing materials in an allowance area of the thermosetting allowance part through machining to form the part to be laid.
And after the parts are laid, cutting off a temperature measuring line of the thermocouple, keeping a temperature measuring end in a margin area of the margin part, carrying out thermosetting on the margin part, removing materials in the margin area in a machining mode after the margin part is solidified and molded, and finally obtaining the parts to be laid.
The embodiment of the invention provides a temperature adjusting method in a material laying process, which solves the problem that the temperature of a heater of laying equipment is unqualified after material compaction due to the fact that the heater can only work according to a set fixed temperature in the process of heating the material, compares the temperature of each material with the preset target temperature of a corresponding working area by acquiring the temperature of the material in the material compaction process, adjusts the working temperature of each working area according to each comparison result to realize the adjustment of the working temperature of the heater, achieves the effect of flexibly adjusting the working temperature of the heater according to the actual temperature of the material, acquires the temperature of the material through a thermocouple temperature measuring head, acquires the accurate temperature after the material compaction, is not influenced by the temperature or distance of an intermediate medium, has quick thermal response time and more accurate temperature measurement, and effectively avoids errors generated in the temperature acquisition process, the qualification rate of parts is improved; the thermocouple can be arranged on the surface of various materials with complex profiles, is not influenced by a laying path, and has no risk of collision and interference with equipment; the operator can check the measurement data in a safe working area, and the safety of the operator is improved.
EXAMPLE III
Fig. 5 is a schematic structural diagram of a temperature adjustment device in a material laying process according to a third embodiment of the present invention, where the device includes: an acquisition module 31, a comparison module 32 and an adjustment module 33.
The acquisition module 31 is configured to acquire a material temperature corresponding to a material compacted at a position of each thermocouple temperature measuring head when the laying head is monitored to lay the material according to a preset working temperature and a preset laying path of each working area, and each material temperature is acquired by the corresponding thermocouple temperature measuring head; a comparison module 32, configured to compare the temperature of each material with a preset target temperature of the corresponding working area; and the adjusting module 33 is configured to adjust the working temperature of each working area according to each comparison result, so as to control the heater of the laying head to work at the adjusted working temperature.
The embodiment of the invention provides a temperature adjusting device in a material laying process, which solves the problem that the temperature of a heater of laying equipment is unqualified after material compaction due to the fact that the heater can only work according to a set fixed temperature in the process of heating the material; the thermocouple can be arranged on the surface of various materials with complex profiles, is not influenced by the laying path, and has no risk of collision and interference with equipment; the operator can check the measurement data in a safe working area, and the safety of the operator is improved.
Further, the apparatus further comprises: and the determining module is used for determining the laying path and the positions of the thermocouple temperature measuring heads.
Further, the determining module includes:
the digital-analog obtaining unit is used for obtaining a part digital analog of the part to be laid;
the path determining unit is used for determining the laying path according to the part digital model and the strip parameters of the laying equipment;
the area determining unit is used for determining a laying area containing the part to be laid according to the part digital model, and determining an area in the laying area, from which the part to be laid is removed, as a margin area;
and the temperature measuring point determining unit is used for selecting each temperature measuring point from the allowance area according to the laying path, controlling the laying equipment to carry out physical position identification on each temperature measuring point, wherein the physical position corresponding to each temperature measuring point corresponds to the position of each thermocouple temperature measuring head.
Further, the temperature measurement point determining unit is specifically configured to generate a point location program according to the temperature measurement point; and controlling the laying equipment to run the point location program so as to realize the position identification of the temperature measuring point.
Further, the adjusting module 33 is specifically configured to: and when the difference value between the material temperature and the preset target temperature is not within the preset temperature threshold range, determining a temperature adjustment value according to a preset temperature adjustment strategy, and controlling the working temperature in the corresponding working area to reduce or increase the temperature adjustment value.
Further, the apparatus further comprises:
and the storage module is used for storing corresponding working temperatures when the difference value between each material temperature and each corresponding preset target temperature is within a preset temperature threshold range, so that the laying head works in a corresponding working area according to the working temperatures until a surplus part containing the part to be laid is formed after the material laying is finished.
Further, the apparatus further comprises:
and the thermosetting module is used for thermosetting the allowance part, removing materials in the allowance area of the thermosetting allowance part through machining, and forming the part to be laid.
Further, the layup path comprises at least a layup direction of each layup layer; correspondingly, a temperature measuring line connected with the thermocouple temperature measuring head is perpendicular to the laying direction of the next laying layer.
The temperature adjusting device in the material laying process provided by the embodiment of the invention can execute the temperature adjusting method in the material laying process provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the executing method.
Example four
Fig. 6 is a schematic structural diagram of an apparatus according to a fourth embodiment of the present invention, as shown in fig. 6, the apparatus includes a processor 40, a memory 41, an input device 42, an output device 43, and a thermocouple temperature measuring head 44; the number of the processor 40 and the thermocouple temperature measuring head 44 in the device can be one or more, and one processor 40 and one thermocouple temperature measuring head 44 are taken as an example in fig. 6; the processor 40, memory 41, input device 42, output device 43, and thermocouple probe 44 in the apparatus may be connected by a bus or other means, as exemplified by the bus connection in fig. 6.
A thermocouple temperature measuring head 44 for collecting the material temperature; the memory 41 is used as a computer readable storage medium for storing software programs, computer executable programs, and modules, such as program instructions/modules corresponding to the temperature adjustment method in the material placement process in the embodiment of the present invention (for example, the acquisition module 31, the comparison module 32, and the adjustment module 33 in the temperature adjustment device in the material placement process). The processor 40 executes various functional applications of the apparatus and data processing, i.e. implements the above-described temperature adjustment method in the material placement process, by executing software programs, instructions and modules stored in the memory 41.
The memory 41 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the memory 41 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, memory 41 may further include memory located remotely from processor 40, which may be connected to the device over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 42 is operable to receive input numeric or character information and to generate key signal inputs relating to user settings and function controls of the apparatus. The output device 43 may include a display device such as a display screen.
EXAMPLE five
Embodiments of the present invention also provide a storage medium containing computer-executable instructions for performing a method of temperature adjustment in a material placement process when executed by a computer processor, the method comprising:
when the laying head is monitored to lay the material according to the preset working temperature and the laying path of each working area, acquiring the corresponding material temperature of the material after compaction at the position of each thermocouple temperature measuring head, wherein the material temperature is acquired through the corresponding thermocouple temperature measuring head;
comparing the temperature of each material with a preset target temperature of the corresponding working area;
and adjusting the working temperature of each working area according to each comparison result so as to control the heater of the laying head to work at the adjusted working temperature.
Of course, the storage medium provided by the embodiment of the present invention contains computer executable instructions, and the computer executable instructions are not limited to the operations of the method described above, and can also execute the relevant operations in the temperature adjustment method in the material laying process provided by any embodiment of the present invention.
From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.
It should be noted that, in the embodiment of the temperature adjustment device in the material placement process, the units and modules included in the device are only divided according to the functional logic, but are not limited to the above division as long as the corresponding functions can be realized; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A method of temperature adjustment during material placement, comprising:
when the laying head is monitored to lay the material according to the preset working temperature and the laying path of each working area, acquiring the corresponding material temperature of the material after compaction at the position of each thermocouple temperature measuring head, wherein the material temperature is acquired through the corresponding thermocouple temperature measuring head;
comparing the temperature of each material with a preset target temperature of the corresponding working area;
and adjusting the working temperature of each working area according to each comparison result so as to control the heater of the laying head to work at the adjusted working temperature.
2. The method of claim 1, further comprising: determining the laying path and the positions of the thermocouple temperature measuring heads;
accordingly, determining the placement path and the location of each thermocouple probe comprises:
acquiring a part digital model of a part to be laid;
determining a laying path according to the part digital model and strip parameters of the laying equipment;
determining a laying area containing the part to be laid according to the part digital model, and determining an area in the laying area, from which the part to be laid is removed, as a margin area;
and selecting all temperature measuring points from the allowance area according to the laying path, controlling the laying equipment to carry out physical position identification on all the temperature measuring points, wherein the physical positions corresponding to all the temperature measuring points correspond to the positions of all the thermocouple temperature measuring heads.
3. The method according to claim 2, wherein the control placement device physically identifies the temperature measurement points by:
generating a point location program according to the temperature measuring points;
and controlling the laying equipment to run the point location program so as to realize the position identification of the temperature measuring point.
4. The method of claim 1, wherein adjusting the operating temperature of the operating region according to the comparison comprises:
and when the difference value between the material temperature and the preset target temperature is not within the preset temperature threshold range, determining a temperature adjustment value according to a preset temperature adjustment strategy, and controlling the working temperature in the corresponding working area to reduce or increase the temperature adjustment value.
5. The method of claim 1, further comprising:
when the difference value between each material temperature and each corresponding preset target temperature is within a preset temperature threshold range, storing each corresponding working temperature to enable the laying head to work in a corresponding working area according to the working temperature until a surplus part containing the part to be laid is formed after the material laying is finished.
6. The method of claim 5, further comprising:
and carrying out thermosetting on the allowance part, and removing materials in an allowance area of the thermosetting allowance part through machining to form the part to be laid.
7. The method according to any one of claims 1 to 6, wherein the laydown path comprises at least a laydown direction of the respective laydown layer;
correspondingly, a temperature measuring line connected with the thermocouple temperature measuring head is perpendicular to the laying direction of the next laying layer.
8. A temperature conditioning apparatus for a material placement process, comprising:
the acquisition module is used for acquiring the corresponding material temperature of the material after compaction at the position of each thermocouple temperature measuring head when the laying head lays the material according to the preset working temperature and the laying path of each working area, and the material temperature is acquired through the corresponding thermocouple temperature measuring head respectively;
the comparison module is used for comparing the temperature of each material with the preset target temperature of the corresponding working area;
and the adjusting module is used for adjusting the working temperature of each working area according to each comparison result so as to control the heater of the laying head to work at the adjusted working temperature.
9. An apparatus, characterized in that the apparatus comprises:
one or more thermocouple temperature probes for collecting material temperature;
one or more processors;
a storage device for storing one or more programs,
when executed by the one or more processors, cause the one or more processors to implement a method of temperature adjustment in a material placement process as claimed in any one of claims 1-7.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out a method of temperature adjustment in a material placement process according to any one of claims 1-7.
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