JP6838113B2 - How to warm up the machine system - Google Patents

Description

The present invention relates to a method for warming up a machine system, and more particularly to a method for warming up a machine system capable of reliably warming up a processing machine to an appropriate operating temperature.

The machine members that make up a conventional machining machine need to be warmed up to an appropriate operating temperature before starting work in order to suppress the occurrence of machining defects caused by thermal expansion during machining.

For example, Patent Document 1 discloses a processing machine that selects a warm-up process according to the ambient temperature. However, this method has a drawback that it cannot be ensured that the processing machine is warmed up to an appropriate operating temperature.

Publication of Chinese Patent Application No. 1052693999

In view of the above problems, it is an object of the present invention to provide a warm-up method for a machine system capable of reliably warming up a processing machine to an appropriate operating temperature.

In order to achieve the above object, the present invention is a warm-up method applied to a machine system having a machine member and a machine sensor that senses the temperature of the machine member.
A warm-up step of activating the machine member and causing the machine member to execute a warm-up process of warming itself up.
A determination step of determining whether or not the machine member has been warmed up based on a predetermined target temperature corresponding to the machine member and the current temperature of the machine member detected by the machine sensor.
When it is determined by the determination step that the machine member has been warmed up, a stop step of causing the machine member to stop the warm-up process, and a stop step.
Provide a warm-up method characterized by including.

The warm-up method of the present invention uses a machine sensor that senses the temperature of a machine member to monitor the temperature of the machine member, and when it is determined that the temperature has been warmed up, the machine member is warmed up. Since the process is stopped, the machine member can be surely warmed up.

It is a block diagram which shows the structure of the machine system to which the 1st Embodiment of the warm-up method of the machine system of this invention is applied. It is a flowchart which shows 1st Embodiment of the warm-up method of the machine system of this invention. It is a flowchart which shows the content of the target temperature determination process in 1st Embodiment of the warm-up method of the machine system of this invention. It is explanatory drawing which shows the extraction condition of the candidate target temperature data used for the determination of the target temperature in the target temperature determination process in 1st Embodiment of the warm-up method of the machine system of this invention. It is a block diagram which shows the structure of the machine system to which the 2nd Embodiment of the warm-up method of the machine system of this invention is applied. It is a flowchart which shows the 2nd Embodiment of the warm-up method of the machine system of this invention. It is explanatory drawing which shows the extraction condition of the candidate target temperature data used for the determination of the target temperature in the target temperature determination process in 2nd Embodiment of the warm-up method of the machine system of this invention.

The warm-up method of the machine system of the present invention will be described below with reference to each drawing.

FIG. 1 is a block diagram showing a configuration of a machine system to which the first embodiment of the machine system warm-up method of the present invention is applied, and FIG. 2 is a block diagram showing a first embodiment of the machine system warm-up method of the present invention. The flowchart shows the embodiment, FIG. 3 is a flowchart showing the contents of the target temperature determination step in the first embodiment of the warm-up method of the machine system of the present invention, and FIG. 4 is the flowchart of the machine system of the present invention. It is explanatory drawing which shows the extraction condition of the candidate target temperature data used for determining the target temperature in the target temperature determination process in 1st Embodiment of a warm-up method.

As shown in FIG. 1, the machine system 1 to which the first embodiment of the warm-up method of the machine system of the present invention is applied includes at least one machine member 12, a processing means 16, and a storage means 15. As the machine member 12, for example, a transmission member such as a guide rail or a ball screw, or a comb is a processing member, but there is no particular limitation. Each machine member 12 has a machine sensor 13 that senses the temperature of the machine member 12. The processing means 16 controls the operation of the machine system 1, and the storage means 15 stores data used by the processing means 16 to control the operation of the machine system 1.

FIG. 2 is a flowchart showing a first embodiment of the warm-up method of the machine system of the present invention. As shown in FIG. 2, when there is only one machine member 12, in the warm-up method of the machine system of the present invention, first, the processing means 16 and the storage means 15 are used to attach the machine member 12. Determined in the target temperature determination step 21 for determining the corresponding target temperature, the warm-up step 22 for activating the machine member 12 and causing the machine member 12 to execute a warm-up process for warming up itself, and the temperature determination step 21. A determination to determine whether or not the machine member 12 has been warmed up based on a predetermined target temperature corresponding to the machine member 12 and the current temperature of the machine member 12 sensed by the machine sensor 13. With respect to the stop step 24 for stopping the warm-up process and the machine member 12 for which the stop step 24 has not yet been executed, the machine member 12 determined to have been warmed up by the step 23 and the determination step 23. The error output step 25, which outputs an error message when the machine member 12 measures the elapsed time from the start of executing the warm-up process and determines that a predetermined time has elapsed, is included.

By the way, in this embodiment, the state of reaching the target temperature is determined to have been warmed up, but the present invention is not limited to this, and if it is determined whether or not the target temperature has been warmed up with reference to the target temperature, the target Reaching temperature does not have to be a warm-up criterion.

Due to the error output step 25, a situation occurs in which the stop step 24 has not yet been executed, that is, it has not been determined that the warm-up has been completed, even after a predetermined time has elapsed since the machine member 12 started executing the warm-up process. However, it is determined that the machine member 12 has not been warmed up, the machine sensor 13 cannot reliably detect the temperature of the machine member 12, or another problem has occurred, and an error message is output. You can deal with it immediately.

When a plurality of machine members 12 are present, the target temperature determination step 21 determines the corresponding target temperature for each machine member 12. In the warm-up step 22, all the machine members 12 are activated, and each machine member 12 is made to execute a warm-up process for warming up itself. In the determination step 23, each machine member is based on a predetermined target temperature corresponding to each machine member 12 determined in the temperature determination step 21 and the current temperature of each machine member 12 sensed by each machine sensor 13. 12 determines if the corresponding target temperature has been reached. Then, in the stop step 24, the warm-up process is stopped by the machine member 12 determined to have reached the corresponding target temperature by the determination step 23. That is, in the stop step 24, when it is determined by the determination step 23 that only a part of the machine members 12 have reached the corresponding target temperature, the warm-up process of the part of the machine members 12 is performed. A partial stop step 241 for stopping the warm-up process on the machine member 12 in which the above is being executed, a repeat determination step 242 for repeating the above-mentioned determination process after the partial stop step 241 is executed, and a repeat determination step 242. When at least one machine member 12 that is not executing the warm-up process and has not reached the corresponding target temperature is identified in all the machine members 12, the identified at least one machine member 12 is assigned. It includes three sub-steps, a re-warm-up step 243 to execute the warm-up process, and when it is determined by the determination step 23 that all the machine members 12 have reached the corresponding target temperature, the warm-up process The warm-up process is stopped by the machine member 12 that is executing the above, and the process is completed.

In this way, when the machine member 12 performs the warm-up process and reaches the target temperature, the warm-up process is stopped, and the machine member 12 is stopped and becomes below the target temperature until all the machine members 12 reach the target temperature. By causing the machine member 12 to execute the warm-up process, all the machine members 12 can be surely warmed up to the target temperature. Then, according to the error output step 25, it is determined that the stop step 24 is not executed even after a predetermined time has elapsed since the machine member 12 started executing the warm-up process, that is, the warm-up of all the machine members 12 has not been completed. Then, it is determined that a problem has occurred somewhere, an error message is output, and based on this error message, the problem can be quickly eliminated.

Subsequently, the target temperature determination step 21 will be described in detail. As shown in FIG. 3, in the first embodiment of the warm-up method of the machine system of the present invention, the target temperature determination step 21 for determining the target temperature determines the target temperature based on the past machine temperature history. decide.

Next, with reference to FIG. 4, a procedure for determining the target temperature based on the past machine temperature history will be described. Using the processing means 16 and the storage means 15, the storage means 15 stores a plurality of machine temperature data sensed at a plurality of past time points by the machine sensor 13 corresponding to each machine member 12 (step 211). A machine temperature history composed of a plurality of machine temperature data is created (step 212), and a target temperature corresponding to the machine member is determined based on the machine temperature history (step 213). A specific method for determining the target temperature is, for example, from all the machine temperature histories corresponding to each machine member 12.
(1) Machine temperature data detected at a time when all machine members 12 are in operation and the temperatures of all machine members 12 are equal to or lower than a predetermined operating temperature threshold value.
(2) Below the machine temperature threshold corresponding to the machine member 12.
A method of extracting machine temperature data satisfying the above two conditions to obtain candidate target temperature data and determining the target temperature based on the candidate target temperature data can be mentioned.

That is, the predetermined operating temperature threshold corresponds to all the machine members 12, and the numerical value exceeding this is an inappropriate numerical value as the target temperature for all the machine members 12, and the machine temperature threshold is for each machine member 12. It is a threshold value that is determined in advance according to the configuration, position, role, and the like of each machine member 12.

For example, as shown in Table 1 below, the machine temperature data of the three machine members A to C detected at each of the four past time points T1 to T4 in the machine temperature history is included. First, based on the condition (1), the predetermined operating temperature threshold is set to 70 ° C., all the machine members are in operation, and the temperature of all the machine members is equal to or lower than the predetermined operating temperature threshold. At a certain point in time, that is, the machine temperature data of each machine member recorded at T2 and T4 is extracted, and then, based on the condition (2), the machine temperature thresholds of the machine members A to C determined in advance are set to 60 ° C., respectively. When the machine temperature data exceeding this value is excluded at 55 ° C. and 50 ° C., the machine temperature data corresponding to the machine member A is 55 ° C. recorded in T4, and the machine temperature data corresponding to the machine member B is T2 and T4. 52 ° C. and 50 ° C. recorded in the above, and 43 ° C. recorded in T2 as the machine temperature data corresponding to the machine member C are extracted as candidate target temperature data, and the target temperature is determined based on these data. For example, the target temperature corresponding to the machine member A is set to 55 ° C. recorded in T1, and the target temperature corresponding to the machine member B is 52 ° C. recorded in T2 and 50 ° C. recorded in T4, which is the average value 51. It can be set to ° C and set to 43 ° C recorded in T2 as the target temperature corresponding to the machine member C. Of course, this is only an example, and it is not necessary to set the extracted candidate target temperature data as the target temperature as it is.

Next, a second embodiment of the warm-up method of the machine system of the present invention will be described with reference to FIGS. 5 to 7. FIG. 5 is a block diagram showing a configuration of a machine system to which the second embodiment of the machine system warm-up method of the present invention is applied, and FIG. 6 is a second block diagram of the machine system warm-up method of the present invention. FIG. 7 is a flowchart showing an embodiment, and FIG. 7 shows extraction conditions of candidate target temperature data used for determining the target temperature in the target temperature determination step in the second embodiment of the warm-up method of the machine system of the present invention. It is an explanatory diagram.

First, as shown in FIG. 5, the machine system to which the second embodiment of the warm-up method of the machine system of the present invention is applied further includes an environmental temperature sensor 14. In the second embodiment, each machine member 12 further has an environmental temperature sensor 14 that senses the ambient temperature around the machine member 12, but the present invention is not limited to this. It is also possible to install only one in the machine system 1, that is, only in any one of the machine members 12.

As shown in FIG. 6, in the second embodiment of the warm-up method of the machine system of the present invention, the target temperature is determined based on the past machine temperature history and the environmental temperature.

That is, the second embodiment of the warm-up method of the machine system of the present invention can be executed according to the flowchart shown in FIG.

First, the target temperature is determined based on the past machine temperature history and the environmental temperature (step 61).

Subsequently, all the machine members 12 are made to execute the warm-up process (step 62).

Subsequently, it is determined whether all the machine members 12 have been warmed up (step 63), and if all the machine members 12 have been warmed up, it is determined that the warm-up is completed, and the warm-up process is being executed. The warm-up process of the machine member 12 is stopped to end the warm-up method (step 64). If some of the machine members 12 have not been warmed up, the process proceeds to determine the elapsed time (step 65).

In the determination of the elapsed time (step 65), if it is determined that a predetermined time has already passed from the start of the warm-up process, an error message of warm-up failure is output (step 66).

If it is determined that the predetermined time has not passed yet, the process proceeds to the partial stop step (step 67).

That is, when it is determined that only a part of the machine members 12 has reached the corresponding target temperature, the warm-up process is performed on the machine member 12 of the part of the machine members 12. Stop the process.

After the partial stop step (step 67) is executed, the step (step 68) of determining whether or not the target temperature has been reached for each machine member 12 is executed, and the warm-up process is being executed. When at least one machine member 12 that is not and has not reached the corresponding target temperature is identified, the identified at least one machine member 12 is made to perform a warm-up process (step 69).

After the step 69 is executed, or when the machine member 12 which is not executing the warm-up process and has not reached the corresponding target temperature is not specified in the step 68, all the machine members 12 have been warmed up. The process returns to step 63 for determining whether or not, and is repeated.

As shown in FIG. 7, a plurality of past environmental temperature data sensed by the environmental temperature sensor 14 corresponding to each machine member 12 is associated with the machine temperature data sensed by the machine sensor 13 at that time point. At the same time, it is stored in the storage means 15 as an environmental temperature history. As a specific method for determining the target temperature, for example, using the environmental temperature history stored in the storage means 15, the average value of the environmental temperature data at a plurality of past time points is calculated as the average environmental temperature, and then the environmental temperature history. From the environmental temperature data included in, specify the environmental temperature data whose absolute value of the difference from the average environmental temperature is equal to or less than the predetermined environmental temperature threshold, and determine the past time point corresponding to the specified environmental temperature data as the candidate past time point. Then, from the machine temperature history stored in the storage means 15,
(1) Machine temperature data detected at the past time point of the candidate.
(2) Machine temperature data detected when all machine members 12 are in operation and the temperatures of all machine members 12 are equal to or lower than a predetermined operating temperature threshold value.
(3) Below the machine temperature threshold corresponding to the machine member 12.
A method of extracting machine temperature data satisfying the above three conditions to obtain candidate target temperature data and determining the target temperature based on the candidate target temperature data can be mentioned.

In this way, when determining the target temperature, the environmental temperature is also taken into consideration, and the average value of the environmental temperature data at multiple past points is used to exclude the detected data when the environmental temperature is in an extreme state. Candidates whose difference from a certain average ambient temperature is within a certain range Using only the machine temperature data detected at the past time point, all machine members 12 are in operation and are applied to all machine members 12. Machine temperature data that does not exceed the operating temperature threshold and the corresponding machine temperature threshold for each machine member 12 is extracted as candidate target temperature data, and the target temperature data is determined based on this. By adopting this method, more appropriate target temperature data can be determined by taking the environmental temperature data into consideration and excluding the data detected when the environmental temperature is extreme.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and includes all modifications and equal configurations as various configurations included within the spirit and scope of the broadest interpretation. It shall be.

The warm-up method of the present invention uses a machine sensor that senses the temperature of a machine member to monitor the temperature of the machine member, and if it is determined that the temperature has reached a predetermined target temperature, the machine is said to have reached the predetermined target temperature. Since the warm-up process is stopped on the member, the machine member can be surely warmed up, and the occurrence of processing defects can be suppressed to further save the cost.

1 Machine system 12 Machine member 13 Machine sensor 14 Environmental temperature sensor 15 Storage means 16 Processing means

Claims (9)

A warm-up method applied to a machine system having a machine member and a machine sensor that senses the temperature of the machine member.
A warm-up step of activating the machine member and causing the machine member to execute a warm-up process of warming itself up.
A determination step of determining whether or not the machine member has been warmed up based on a predetermined target temperature corresponding to the machine member and the current temperature of the machine member detected by the machine sensor.
When it is determined by the determination step that the machine member has been warmed up, a stop step of causing the machine member to stop the warm-up process, and a stop step.
Is included ,
The machine system includes a plurality of the machine members and a plurality of the machine sensors that sense the temperature of each of the machine members.
In the warm-up step, all the machine members are made to execute a warm-up process for warming themselves up.
In the determination step, each of the machine members warms up based on the plurality of target temperatures corresponding to each of the machine members and the current temperature of the corresponding machine member sensed by each of the machine sensors. Individually judge whether it is done or not,
In the stop step, when it is determined by the determination step that all the machine members have been warmed up, all the machine members are stopped from the warm-up process.
The target temperature corresponding to the machine member is determined based on the machine temperature history composed of a plurality of machine temperature data sensed at a plurality of past time points by the machine sensor corresponding to each machine member. further included warm-up method comprising Rukoto target temperature determining step is. When it is determined by the determination step that some of the machine members have been warmed up in the stop step, the machine member that is executing the warm-up process among the part of the machine members. Partial stop process to stop the warm-up process and
After the partial stop step is executed, the repeated judgment step of repeating the judgment step and the repeated judgment step
Two sub-steps are included, and in the stop step, when it is determined by the determination step that all the machine members have been warmed up, the machine member that is executing the warm-up process is said to have the warm-up process. The warm-up method according to claim 1 , wherein the warm-up process is stopped. When at least one said machine member that is not executing the warm-up process and has not been warmed up is specified in the stopping step by the repeating determination step, at least the specified machine member is specified. The warm-up method according to claim 2 , further comprising a sub-step of a re-warm-up step of causing one machine member to execute a warm-up process. In the target temperature determination step, from all the machine temperature histories corresponding to each of the machine members, all the machine members are in operation and the temperatures of all the machine members are equal to or less than a predetermined operating temperature threshold. Machine temperature data that is detected at a certain point in time and that satisfies the two conditions of being below the machine temperature threshold corresponding to the machine member is extracted and used as candidate target temperature data, and the candidate is used. The warm-up method according to claim 1 , wherein a sub-step for determining the target temperature based on the target temperature data is included. In the stopping step, when it is determined that all of the machines member is already warmed up, it is still stopped the warm-up process to each of said machine member running the warm-up process in claim 1, wherein The described warm-up method. Claim 1 is characterized in that, in the determination step, when it is determined that the current temperature of the machine member detected by the machine sensor has reached the target temperature, it is determined that the machine member has been warmed up. Warm-up method described in. The machine system also has an environmental temperature sensor that senses the ambient temperature.
The environmental temperature history including the environmental temperature data at a plurality of past time points detected by the environmental temperature sensor and the plurality of machine temperature data sensed at the plurality of past time points by the machine sensor corresponding to the machine member are included. The warm-up method according to claim 1, further comprising a target temperature determining step of determining the target temperature corresponding to the machine member based on the included machine temperature history. The target temperature determination step is
After calculating the average value of the plurality of past time-time environmental temperature data included in the environmental temperature history as the average environmental temperature, the said environmental temperature data included in the environmental temperature history is referred to as the average environmental temperature. The environmental temperature data whose absolute value of the difference is equal to or less than a predetermined environmental temperature threshold is specified, and the past time point corresponding to the specified environmental temperature data is determined as a candidate past time point.
From the machine temperature history
Machines detected at the time when the candidate machine temperature data is detected at the past time, all the machine members are in operation, and the temperature of all the machine members is equal to or lower than a predetermined operating temperature threshold. Machine temperature data that is temperature data and satisfies the three conditions of being below the machine temperature threshold corresponding to the machine member is extracted and used as candidate target temperature data, and the target is based on the candidate target temperature data. The warm-up method according to claim 7 , wherein a sub-step for determining temperature is included. After the warm-up step is performed
For the machine member for which the stop step has not been executed, the elapsed time since the machine member starts executing the warm-up process is measured, and if it is determined that the predetermined time has elapsed, an error message is output. The warm-up method according to claim 1, wherein an error output step is included.