JP7070485B2 - Machine Tools - Google Patents

Description

This technique relates to a machine tool that processes a workpiece to manufacture a product and measures the number of manufactured products.

Conventionally, a machine tool is provided with a counter for measuring the number of manufactured products to be manufactured and a display unit for displaying the number of manufactured products measured by the counter. The display unit displays the measurement results of all the counters. The operator can confirm the number of products being manufactured (see, for example, Patent Document 1).

Japanese Patent No. 3060515

The machine tool displays not only the measurement result of the counter that measures the number of products being manufactured, but also the measurement result of the counter that is not manufactured. Therefore, it is difficult for the operator to recognize the number of products being manufactured even by looking at the display unit.

The present disclosure has been made in view of such circumstances, and an object of the present invention is to provide a machine tool in which the number of products being manufactured can be easily recognized.

The machine tool according to the present disclosure is a machine machine having a plurality of counting units for counting manufactured products and a display unit for displaying the counting result by each counting unit, in which only one of the counting units is used, and the other. When the counting unit is not used, the display unit displays the first display frame for displaying the counting result of the one counting unit and the second display unit for displaying the counting result of the other counting unit. It is displayed in a mode different from the display frame.

In the present disclosure, the first display frame is displayed in a manner different from that of the second display frame. That is, the number of products being manufactured displayed by the first display frame is displayed in a manner different from the number of unmanufactured products displayed by the second display frame.

When the machine tool according to the present disclosure uses only one counting unit and does not use the other counting unit, the display unit displays the first display frame and displays the second display frame. do not.

In the present disclosure, only the number of products in production displayed by the first display frame is displayed, so that the operator can easily recognize the number of products in production.

The machine tool according to the present disclosure is provided with a determination unit for determining whether or not there is history information of the machining program before execution of machining by the machining program, and when the determination unit determines that the history information is present, The display unit displays the first display frame based on the history information.

In the present disclosure, the first display frame is displayed based on the execution history of the machining program. Therefore, the number of products in production can be appropriately displayed before the processing is executed.

The machine tool according to the present disclosure includes a reading unit that reads a command indicating the use of the one counting unit from the machining program when the determination unit determines that the history information does not exist, and the display unit includes a reading unit. The first display frame is displayed based on the command read by the reading unit.

In the present disclosure, the first display frame is displayed based on the machining program. Therefore, the number of products in production can be appropriately displayed before the processing is executed.

In the machine tool according to the present disclosure, after the execution of the machining program, the display unit displays the first display frame based on the counting result of the one counting unit.

In the present disclosure, the result actually counted by one counting unit can be displayed in the first display frame, and the number of manufactured products can be accurately displayed.

In the machine tool according to the present disclosure, the first display frame includes a graph showing the ratio of the current production number to the target production number.

In the present disclosure, since a graph showing the ratio of the current production number to the target production number is displayed, the operator can intuitively understand the progress of the processing process.

The machine tool according to the present disclosure includes a first holding portion and a second holding portion for holding the work, and when a product is manufactured using the first holding portion, the first display frame is the first holding portion. When a product is manufactured using the second holding part, the one display frame includes a sign indicating the second holding part, and the first holding part and the second holding part are used. When the product is manufactured, the one display frame includes a sign indicating the first holding portion and the second holding portion.

In the present disclosure, the operator can easily understand whether the first holding part, the second holding part, or both the first holding part and the second holding part are used.

In the machine tool according to the present disclosure, the first display frame is displayed in a manner different from that of the second display frame. That is, the number of products being manufactured displayed by the first display frame is displayed in a manner different from the number of unmanufactured products displayed by the second display frame. Therefore, the worker can easily recognize the number of products being manufactured.

It is a schematic perspective view of the machine tool main body which concerns on Embodiment 1. FIG. It is a perspective view which shows the cover for a machine tool. It is a block diagram of a control device. It is a conceptual diagram which shows an example of a machining program. It is an image diagram which shows the display field displayed on the display part. It is a flowchart which shows the display process. It is a flowchart which shows the search process. It is an image diagram which shows the display column displayed on the display part which concerns on the 1st change example. It is an image diagram which shows the display column displayed on the display part which concerns on the 2nd modification. It is a schematic perspective view of the machine tool main body which concerns on Embodiment 2. FIG. It is an image diagram which shows the display field displayed on the display part. It is a flowchart which shows the display process.

(Embodiment 1)
Hereinafter, the present invention will be described with reference to the drawings showing the machine tool according to the first embodiment. In the following explanation, the top, bottom, front, back, left, and right in the figure are used. FIG. 1 is a schematic perspective view of a machine tool main body. The machine tool main body includes a base 1, a Y-direction moving device 2, an X-direction moving device 3, a vertical column 5, a Z-direction moving device 6, a spindle head 10, a tool changing device 7, a control device 80, and the like. The X direction corresponds to the left-right direction, and the Y direction corresponds to the front-back direction. The base 1 is fixed on the floor surface. The base 1 supports the Y-direction moving device 2, the X-direction moving device 3, and the vertical column 5. The X-direction moving device 3 is arranged on the Y-direction moving device 2. The work table 4 is provided on the X-direction moving device 3. The work table 4 holds the work.

A vertical column 5 is arranged on the rear side of the Y-direction moving device 2. A Z-direction moving device 6 is provided at the front of the vertical column 5. The Z-direction moving device 6 moves the spindle head 10 in the vertical direction. The spindle head 10 supports a spindle (not shown). The connecting plate 9 projects forward from the vertical column 5. A tool changing device 7 is provided at the tip of the connecting plate 9. The tool changer 7 is located on the front side of the spindle head 10. The tool changing device 7 changes the tool mounted on the spindle. The tool changer 7 has a disk shape in a forward leaning posture, and houses a plurality of tool holding arms (not shown). The tool changer 7 is rotatable about an axis. A control device 80 is provided at the rear of the vertical column 5. The Y-direction moving device 2, the X-direction moving device 3, the Z-direction moving device 6, and the tool changing device 7 are driven by the motor 8 (see FIG. 3).

FIG. 2 is a perspective view illustrating the machine tool cover 11. The machine tool includes a machine tool cover 11 and a machine tool main body. The machine tool cover 11 surrounds the machine tool body. The machine tool cover 11 is provided on the upper side of the base 1. The machine tool cover 11 extends in the vertical direction and includes a rectangular front wall 11a, a left wall 11b, a right wall 11c, and a rear wall 11d that cover the front, rear, left, and right sides of the machine tool body, respectively. Further, it covers the upper side of the machine tool 100 and includes a rectangular ceiling 11e parallel to the left-right direction and the front-back direction. A control device 80 is provided on the rear wall 11d. The non-volatile memory stores the operation history of the operation panel 54, which will be described later, in correspondence with the time measured by the clock unit.

A vertically long rectangular opening 51 is provided in the central portion of the front wall 11a, and an operation panel 54 for an operator to input a command is provided on the right side of the opening 51. A vertically long rectangular right door 52 and a left door 53 are arranged side by side in the opening 51 so as to be movable in the left-right direction. The operation panel 54 includes a plurality of switches 54a and a display unit 54b. The display unit 54b includes a touch panel.

FIG. 3 is a block diagram of the control device 80. The control device 80 includes a CPU 81, a storage unit 82, a RAM 83, a first counting unit 84, a second counting unit 85, a third counting unit 86, a fourth counting unit 87, and the like. The storage unit 82 is, for example, a non-volatile memory or a hard disk, and stores a plurality of processing programs. Any one of the machining programs is read from the storage unit 82 into the RAM 83, and the CPU 81 controls the drive of the motor 8 to machine the workpiece.

The first counting unit 84, the second counting unit 85, the third counting unit 86, and the fourth counting unit 87 measure the number of manufactured different products. The operation panel 54 receives the operation of the operator and outputs a signal to the control device 80. The operator operates the operation panel 54, selects a machining program to be executed, and inputs the "number of units", "end value", and "end notice value" described later (see FIG. 5). The control device 80 outputs a display signal to the display unit 54b, and displays the first column 55a, the second column 55b, the third column 55c, and the fourth column 55d (see FIG. 5). The first column 55a, the second column 55b, the third column 55c, and the fourth column 55d are the production numbers measured by the first counting unit 84, the second counting unit 85, the third counting unit 86, and the fourth counting unit 87, respectively. Is displayed. The control device 80 outputs a drive signal to the motor 8.

FIG. 4 is a conceptual diagram showing an example of a machining program. The machining program has a "number" column and a "command" column. The "number" column stores the line number. The "command" column stores a hole drilling command based on a G code or an M code, a spindle movement command, a counting command, and the like. The counting instruction is, for example, M211, M212, M213, M214.

M211 indicates one addition of the production number in the first counting unit 81, M212 indicates one addition of the production number in the second counting unit 85, and M213 indicates one addition of the production number in the third counting unit 83. , M214 indicates one addition of the number of manufactured products in the fourth counting unit 87. When the machining program is executed, the CPU 81 reads out the lines of the machining program in order and executes them. For example, as shown in FIG. 4, when the N1 row is read out, the number of manufactured units in the first counting unit 81 is added by one, and when the N2 row is read out, the number of manufactured units in the third counting unit 83 is added by one.

FIG. 5 is an image diagram showing a display field 55 displayed on the display unit 54b. The display column 55 includes a first column 55a, a second column 55b, a third column 55c, and a fourth column 55d. The first column 55a, the second column 55b, the third column 55c and the fourth column 55d are each, and the first column 55a is the "number of units" column, the "current value" column, the "end value" column, and the "end notice value". It has a column and an "end / notice" column. The second column 55b, the third column 55c, and the fourth column 55d also include the above-mentioned columns. "Number of units" indicates an addition unit, and "current value" indicates the current number of manufactured products. For example, when the "number of units" is 1, the "current value" is added by one, and when the "number of units" is 3, the "current value" is added by three. The "end value" indicates the target value of the number of products, the "end notice value" indicates the current value for displaying the end notice, and the "end / notice" indicates the end or the end notice is in progress. The end indicates that the number of products has reached the target value, and the end is near during the end notice.

As shown in FIG. 5, since the "current value" of the first column 55a is 49 and the "end notice value" is 48, the "end / notice column" indicates that the end is being announced. Since the "end value" of the first column 55a is 50, when the number of products reaches 50, the counting of the first column 55a ends, and the "end / notice column" indicates the end.

As shown in FIG. 5, since the "current value" of the third column 55c is 60 and the "end notice value" is 68, the "end / notice column" does not display the end notice. Also, since the "end value" is 70, the "end / notice column" does not display the end. That is, the "end / notice column" is blank. When the number of products reaches 70, the counting in the third column 55c is completed, and the "end / notice column" indicates the end.

Since the machining program of FIG. 4 does not include M212 and M214, the second counting unit 85 and the fourth counting unit 87 are not used. The CPU 81 leaves the "number of units" column, "current value" column, "end value" column, "end notice value" column, and "end / notice" column of the second column 55b and the fourth column 55d blank. The CPU 81 does not have to display all of the second column 55b and the fourth column 55d. The CPU 81 does not display the counting result of the unused counting unit.

In FIG. 5, the "number of units" column, "current value" column, "end value" column, "end notice value" column, and "end / notice" column of the first column 55a and the third column 55c are the first display frames. To configure. The "number of units" column, "current value" column, "end value" column, "end notice value" column, and "end / notice" column of the second column 55b and the fourth column 55d constitute the second display frame.

FIG. 6 is a flowchart showing the display process. The CPU 81 determines whether or not a machining program has been selected (S1). The operator operates the operation panel 54 and selects a desired machining program. If there is no machining program selected (S1: NO), the CPU 81 returns the process to step S1. When the machining program is selected (S1: YES), the CPU 81 determines whether or not there is an execution history of the selected machining program (S2). When the selected machining program has been executed in the past, the CPU 81 stores the execution history in the storage unit 82. The execution history includes information on the counting unit used. Step S2 constitutes a determination unit.

When there is an execution history of the selected machining program (S2: YES), the CPU 81 displays the display field 55 on the display unit 54b based on the execution history (S3). For example, there is usage information of the first counting unit 84 in the execution history, and the current "number of units", "end value", and "end notice value" of the first counting unit 84 are 1, 50, and 48, respectively. If there is, the display unit 54b displays the first column 55a, and displays 1, 50, and 48 in the "number of units", "end value", and "end notice value", respectively.

The CPU 81 executes a machining program (S4). When the execution of the machining program is completed, the CPU 81 displays the display column 55 of the first counting unit 84, the second counting unit 85, the third counting unit 86, or the fourth counting unit 87 used at the time of executing the machining program. (S5), the executed machining program and the history of the information displayed on the display unit 54b are recorded (S6), and the process is terminated.

If there is no execution history of the selected machining program in step S2 (S2: NO), the CPU 81 executes the search process (S7). The search process will be described later. The search process constitutes a reading unit. Based on the search result, the CPU 81 temporarily displays the display field 55 on the display unit 54b (S8), and proceeds to the process in step S4.

FIG. 7 is a flowchart showing the search process. In step S7, the CPU 81 reads out the lines of the selected machining program in order (S11), and determines whether or not the read lines have the counting commands M211 to M214 (S12). When there is a counting command (S12: YES), the CPU 81 stores the counting unit corresponding to the counting command, that is, the counting unit to be used in the storage unit 82 (S13). The CPU 81 determines whether or not all the rows have been read (S14). If all the rows have not been read (S14: NO), the CPU 81 returns the process to step S11. When all the rows are read (S14: YES), the CPU 81 returns the process to step S8.

In step S12, when there is no counting instruction (S12: NO), the CPU 81 determines whether or not there is a subprogram calling instruction in the read line (S15). If there is no subprogram call instruction (S15: NO), the CPU 81 returns the process to step S14. When there is a subprogram call instruction (S15: YES), the CPU 81 reads the subprogram in the line order (S16), and determines whether or not the read lines have the counting instructions M211 to M214 (S17). When there is a counting command (S17: YES), the CPU 81 stores the counting unit corresponding to the counting command, that is, the counting unit to be used in the storage unit 82 (S18).

The CPU 81 determines whether or not all the lines of the subprogram have been read (S19). If all the rows have not been read (S19: NO), the CPU 81 returns the process to step S16. When all the rows are read (S19: YES), the CPU 81 proceeds to step S14.

In step S3 or S8, the operator who sees the display field 55 may operate the operation panel 54 to change the "number of units", "end value", and "end notice value".

In the first embodiment, a column for displaying the counting result of the counting unit in use (first display frame) and a column for displaying the counting result of the unused counting unit (second display frame) ) Is displayed in a different manner. That is, the number of products being manufactured displayed by the first display frame is displayed in a manner different from the number of unmanufactured products displayed by the second display frame. Therefore, the worker can easily recognize the number of products being manufactured.

Further, since only the number of products being manufactured is displayed and the number of unmanufactured products is not displayed, the operator can easily recognize the number of products being manufactured.

In addition, the first display frame is displayed based on the execution history of the machining program. Therefore, the number of products in production can be appropriately displayed before the processing is executed. Since each counting unit corresponds to a different product, the operator can confirm whether or not the machining program to be executed has been selected by checking the display field 55 displayed before the machining program is executed, and the machining program is executed. You can roughly grasp the contents.

In addition, the first display frame is displayed based on the execution history of the machining program. Therefore, the number of products in production can be appropriately displayed before the processing is executed. The past execution history of the machining program includes a counting instruction by a subprogram (for example, a macro variable). Therefore, it is easy to correspond to the contents of the subprogram.

If there is no history information, the machining program is read and the first display frame is displayed. Therefore, the number of products in production can be appropriately displayed before the processing is executed.

In addition, the result of actual counting by the counting unit can be displayed on the first display frame, and the number of manufactured products can be accurately displayed.

FIG. 8 is an image diagram showing a display field 55 displayed on the display unit 54b according to the first modification example. In FIG. 8, the first column 55a and the third column 55c display graphs 56a and 56c showing the ratio of the current value (current production number) to the end value (target production number). The operator who visually recognizes the graphs 56a and 56c can intuitively understand the progress of the machining process.

FIG. 9 is an image diagram showing a display field 55 displayed on the display unit 54b according to the second modification example. In FIG. 9, the product names “Product A” to “Product D” corresponding to the first column 55a to the fourth column 55d are displayed. The worker can easily grasp the processing content or the product.

(Embodiment 2)
Hereinafter, the present invention will be described with reference to the drawings showing the machine tool according to the second embodiment. Of the configurations according to the second embodiment, the same configurations as those of the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted. FIG. 10 is a schematic perspective view of the machine tool main body. In the first embodiment, the work table is moved in the left-right and front-back directions, but in the second embodiment, the spindle head 10 is moved in the left-right and front-back directions.

A rotary table 40 is arranged below the spindle head 10. The rotary table 40 rotates around the vertical axis. On the rotary table 40, a first holding portion 41 and a second holding portion 42 for holding the work are arranged side by side in the front-rear direction. In FIG. 10, the first holding portion 41 is located at the rear portion of the rotary table 40, and the second holding portion 42 is located at the front portion of the rotary table 40.

The first holding portion 41 includes an A-axis motor 41a, a support portion 41b, a rotary support base 41c, and a clamp portion 41d. The A-axis motor 41a and the support portion 41b are separated from each other to the left and right. The rotary support 41c has a long plate shape on the left and right. The left and right ends of the rotary support base 41c are rotatably supported around the left and right axes by the A-axis motor 41a and the support portion 41b. The clamp portion 41d fixes the work. The clamp portion 41d is provided on the upper surface of the rotary support base 41c.

The second holding portion 42 includes an A-axis motor 42a, a support portion 42b, a rotary support base 42c, and a clamp portion 42d. The A-axis motor 42a, support portion 42b, rotary support 42c, and clamp portion 42d of the second holding portion 42 are the same as the A-axis motor 41a, support portion 41b, rotary support base 41c, and clamp portion 41d of the first holding portion 41. It is a composition. The control device 80 controls the rotary table 40, the first holding unit 41, and the second holding unit 42.

FIG. 11 is an image diagram showing a display field 55 displayed on the display unit 54b. The first column 55a of the display column 55 indicates the sign 57a, that is, the sign “1” indicating the first holding portion 41, and the second column 55b indicates the label 57b, that is, the sign “2” indicating the second holding portion 42. The third column 55c indicates a marker 57c, that is, a marker “1 + 2” indicating the first holding portion 41 and the second holding portion 42. When selecting a machining program, the operator also selects the holding unit used by the selected machining program. The display field 55 displays the selected holding unit.

FIG. 12 is a flowchart showing the display process. The CPU 81 determines whether or not a machining program has been selected (S21). The operator operates the operation panel 54 and selects a desired machining program. If there is no machining program selected (S21: NO), the CPU 81 returns the process to step S21. When the machining program is selected (S21: YES), the CPU 81 determines whether or not the holding unit corresponding to the selected machining program has been selected (S22). The operator operates the operation panel 54 and selects only the first holding unit 41, only the second holding unit 42, or the first holding unit 41 and the second holding unit 42. If there is no selection of the holding unit (S22: NO), the CPU 81 returns the process to step S22. When the holding unit is selected (S22: YES), the CPU 81 determines whether or not there is an execution history of the selected machining program (S23).

When there is an execution history of the selected machining program (S23: YES), the CPU 81 displays the display field 55 on the display unit 54b based on the execution history (S24), and the first holding unit 41, the second holding unit 42, or The signs 57a to 57c indicating both the first holding portion 41 and the second holding portion 42 are displayed (S25). The CPU 81 executes a machining program (S26). When the execution of the machining program is completed, the CPU 81 displays the display column 55 of the first counting unit 84, the second counting unit 85, the third counting unit 86, or the fourth counting unit 87 used at the time of executing the machining program. (S27), the executed machining program and the history of the information displayed on the display unit 54b are recorded (S28), and the process is terminated.

If there is no execution history of the selected machining program in step S23 (S23: NO), the CPU 81 executes the search process (S29). Based on the search result, the CPU 81 temporarily displays the display field 55 on the display unit 54b (S30), and proceeds to the process in step S25.

In the machine tool according to the second embodiment, the first holding portion 41, the second holding portion 42, or both the first holding portion 41 and the second holding portion 42 are used, or the operator can easily Understandable.

In the above-described embodiment, by not displaying the counting result of the unused counting unit, the counting result of the unused counting unit and the counting result of the unused counting unit are displayed in different modes. , Both may be displayed in different modes by other methods. For example, the counting result of the counting unit in use and the counting result of the unused counting unit may be displayed in different colors. Further, the display order of the counting results of the counting unit in use may be prioritized over the counting results of the unused counting unit. Further, the counting result of the counting unit in use may be displayed larger than the counting result of the unused counting unit.

The number of counting units and display frames is not limited to four, and may be three or less, or five or more.

The embodiments disclosed this time should be considered to be exemplary in all respects and not restrictive. The technical features described in each example can be combined with each other and the scope of the invention is intended to include all modifications within the claims and the equivalent scope of the claims. Will be done.

41 First holding unit 42 Second holding unit 54b Display unit 55 Display column 55a to 55d First column to fourth column 57a to 57c Marker 80 Control device 84 to 87 First counting unit to fourth counting unit

Claims (5)

In a machine tool having a plurality of counting units for counting manufactured products and a display unit for displaying the counting results by each counting unit.
When only one counting unit is used and the other counting unit is not used, the display unit uses the first display frame for displaying the counting result of the one counting unit as the other counting unit. Display in a different mode from the second display frame for displaying the counting result of
A determination unit for determining whether or not there is history information of the machining program is provided before the machining by the machining program is executed.
When the determination unit determines that the history information is present, the display unit displays the first display frame based on the history information.
When the determination unit determines that there is no history information, the determination unit includes a reading unit that reads an instruction indicating the use of the one counting unit from the machining program, and the display unit reads the reading unit. Based on the command, the first display frame is displayed,
The reading unit reads the line of the machining program, determines whether or not the read line has the command, reads the command if there is the command, and if there is no command, the subprogram in the read line. It is determined whether or not there is a call instruction of the subprogram, and if there is a call instruction of the subprogram, the instruction is read from the subprogram.
Machine Tools. The machine tool according to claim 1, wherein when only one counting unit is used and the other counting unit is not used, the display unit displays the first display frame and does not display the second display frame. machine. The machine tool according to claim 1 or 2 , wherein after the execution of the machining program, the display unit displays the first display frame based on the counting result of the one counting unit. The machine tool according to any one of claims 1 to 3 , wherein the first display frame includes a graph showing the ratio of the current production number to the target production number. It is provided with a first holding part and a second holding part for holding the work.
When a product is manufactured using the first holding portion, the one display frame includes a sign indicating the first holding portion.
When a product is manufactured using the second holding portion, the one display frame includes a sign indicating the second holding portion.
When a product is manufactured using the first holding portion and the second holding portion, the one display frame includes any one of claims 1 to 4 including a sign indicating the first holding portion and the second holding portion. Machine tools listed in one.

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