CN212963175U - Safe position signal acquisition device of three-coordinate measuring machine - Google Patents
Safe position signal acquisition device of three-coordinate measuring machine Download PDFInfo
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- CN212963175U CN212963175U CN202021604591.0U CN202021604591U CN212963175U CN 212963175 U CN212963175 U CN 212963175U CN 202021604591 U CN202021604591 U CN 202021604591U CN 212963175 U CN212963175 U CN 212963175U
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Abstract
The utility model relates to a three-coordinate measuring machine safety bit signal pickup assembly, include: an interface device connected with a controller of the three-coordinate measuring machine; the relay module comprises a first relay, a second relay and a third relay, mapping channels corresponding to an X axis, a Y axis and a Z axis of the three-coordinate measuring machine are respectively connected with power supply ends of coils of the first relay, the second relay and the third relay, and normally closed stationary contacts of two switching contacts of the first relay, the second relay and the third relay are sequentially connected with normally open stationary contacts of the rest switching contacts; and the acquisition device is provided with an acquisition positive end and an acquisition negative end, the acquisition positive end is connected with any movable contact in the two conversion contacts, and the acquisition negative end is connected with the movable contact in the rest one conversion contact. The utility model is used for through modifying the measuring machine controller parameter, the safety bit signal of automatic acquisition measuring machine improves the measuring machine safety in utilization.
Description
Technical Field
The utility model belongs to the technical field of the three-coordinate measuring machine, concretely relates to three-coordinate measuring machine safety position signal pickup assembly.
Background
The current automatic control system collects the safety bit signal of the three-coordinate measuring machine by a sensor. The sensor bracket is required to be designed according to different equipment requirements for fixing the sensor, and a proper mounting position for avoiding the working position is required to be found.
For the detection of the existing three-coordinate measuring machine, sensors are generally arranged on an X axis and a Y axis to detect the position of the X axis and the position of the Y axis, and whether the three-coordinate measuring machine is located at a safe position is judged by the detection mode, but due to the structural reason, the sensor cannot be arranged on the Z axis, and the position of the Z axis cannot be detected.
The current detection mode has the following defects:
(1) the installation is inconvenient, different mechanisms need to design different sensor supports, and the installation position and the fixing mode need to be considered, so that the installation is inconvenient;
(2) the wiring is not easy to adjust, the wiring is inconvenient and not attractive, and holes need to be punched on the measuring machine at some time, so that the appearance is not attractive, and the original performance of the measuring machine can be influenced;
(3) after the three-coordinate measuring machine finishes the operation of returning to the original point each time, an operator needs to manually control the control box to move the measuring machine to the safety position, in order to ensure that the measuring machine can be moved to the safety position, the initial safety position cannot be accurately confirmed by setting the detection range of the sensor to be wider, and the amount of manual tasks is increased;
(4) the operator needs to understand to operate the measuring machine, and the post-working difficulty of the operator is increased.
Disclosure of Invention
The utility model provides a safe position signal pickup assembly of three-coordinate measuring machine, through revising measuring machine controller parameter, the safe position signal of automatic acquisition measuring machine improves the measuring machine safety in utilization.
In order to realize the technical purpose, the utility model provides a following technical scheme realizes:
the application relates to a three-coordinate measuring machine safety bit signal acquisition device, its characterized in that includes:
the interface device is connected with the controller of the three-coordinate measuring machine and is used for acquiring the set safe coordinate ranges of the X axis, the Y axis and the Z axis of the three-coordinate measuring machine;
the relay module comprises a first relay, a second relay and a third relay, mapping channels corresponding to an X axis, a Y axis and a Z axis of the three-coordinate measuring machine are respectively connected with power supply ends of coils of the first relay, the second relay and the third relay, and normally closed stationary contacts in two switching contacts of the first relay, the switching contacts of the second relay and the switching contacts of the third relay are sequentially connected with normally open stationary contacts in the remaining one switching contact;
and the acquisition device is provided with an acquisition positive end and an acquisition negative end, the acquisition positive end is connected with any movable contact of any two conversion contacts, and the acquisition negative end is connected with the movable contact of the rest one conversion contact.
In the present application, the interface device employs a pluggable plug.
In this application, the pluggable plug is a D-SUB15 pin plug.
In this application, the positive acquisition terminal is a first pogo pin terminal provided at the end of a signal line connected to the moving contact of the two transfer contacts, and/or the negative acquisition terminal is a second pogo pin terminal provided at the end of a signal line connected to the moving contact of the remaining one of the transfer contacts.
In the present application, the safety coordinate ranges of two axes of the X, Y, and Z axes corresponding to the two relays of the two transfer contacts are set as the first safety range R1 and the second safety range R2, respectively, and the safety coordinate range of the remaining one axis is set as the third safety range R3 or the fourth safety range R4; wherein R1 is the interval [ R1, R1'], R2 is the interval [ R2, R2' ], R3 is the interval [ R3, + ∞ ], R4 is the interval (— ∞, R4 ].
The application still relates to a three-coordinate measuring machine safety bit signal pickup assembly, include:
the interface device is connected with the controller of the three-coordinate measuring machine and is used for acquiring the set safe coordinate ranges of the X axis, the Y axis and the Z axis of the three-coordinate measuring machine;
the relay module comprises a first relay, a second relay and a third relay, mapping channels corresponding to an X axis, a Y axis and a Z axis of the three-coordinate measuring machine are respectively connected with power supply ends of coils of the first relay, the second relay and the third relay, and normally open stationary contacts in two of conversion contacts of the first relay, the second relay and the third relay are sequentially connected with normally closed stationary contacts in the rest of the conversion contacts;
and the acquisition device is provided with an acquisition positive end and an acquisition negative end, the acquisition positive end is connected with any movable contact in the two conversion contacts, and the acquisition negative end is connected with the movable contact in the rest one conversion contact.
In the present application, the safety coordinate range of one of the two axes of the X, Y and Z axes corresponding to the two relays of the two transfer contacts is set to the first safety range R1 'or the second safety range R2', and the safety coordinate range of the other is set to the third safety range R3 'or the fourth safety range R4'; the safe coordinate range of the remaining one of the X, Y and Z axes is set as a fifth safe range R5; wherein R1' is the interval (— ∞, R1 '), R2' is the interval [ R2', + ∞ ], R3' is the interval (— ∞, R3 '), R4' is the interval [ R4', + ∞ ], and R5 is the interval [ R5, R5 ').
Compared with the prior art, the utility model discloses type quick-witted three-coordinate measuring safety bit signal pickup assembly has following advantage and beneficial effect:
(1) the signal for judging whether the measuring machine is in the safe position is directly acquired from the measuring machine through the acquisition device, so that a sensor and a bracket thereof are not used, the acquisition efficiency is high, and the investment cost is reduced;
(2) the acquisition device is connected with the controller of the measuring machine through the interface device, so that the installation is convenient, and complicated wiring is avoided;
(3) the safety position points of the X axis and the Y axis can be collected, the problem that the safety position points of the Z axis cannot be collected in the prior art is solved, and the use safety of the measuring machine is improved;
(4) the safety position can be freely set according to the safety coordinate ranges on the set X axis, the set Y axis and the set Z axis, multiple safety position configurations of the measuring machine are met, and the design is flexible.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments of the present invention or the description of the prior art will be briefly described below, and it is obvious that the drawings described below are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic block diagram of an embodiment of a safety position signal acquisition device of a three-coordinate measuring machine according to the present invention;
fig. 2 is a schematic block diagram of another embodiment of the safety position signal collecting device of the three-coordinate measuring machine according to the present invention;
fig. 3 is a flow chart of the embodiment of the safety bit signal collecting device of the three-coordinate measuring machine according to the present invention for collecting the safety bit signal.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In order to automatically collect the safety bit signal of the measuring machine, the use safety of the measuring machine is improved. The application relates to a three-coordinate measuring machine safety position signal acquisition device, and referring to fig. 1 and 2, the acquisition device comprises an interface device 10, a relay module 20 and an acquisition device 30.
The interface device 10 is used to connect the acquisition device to an interface of a controller of a three-coordinate measuring machine (hereinafter referred to as a measuring machine) and to acquire the set safe coordinate ranges of the X-axis, the Y-axis and the Z-axis of the measuring machine.
The relay module 20 uses three relays in the present embodiment: a first relay 21, a second relay 22, and a third relay 23, which correspond to the X-axis, the Y-axis, and the Z-axis, respectively.
Example one
Referring to fig. 1, four pins are used in the interface device 10: 1/2/3/5.
The first pin 1 corresponds to the mapping channel corresponding to the X axis, and the output end thereof is connected to the positive power supply end of the coil of the first relay 21, that is, when the mapping channel corresponding to the X axis outputs a high level, the coil of the first relay 21 is powered on, and when the mapping channel corresponding to the X axis outputs a low level, the coil of the first relay 21 is powered off.
The second pin 2 corresponds to the mapping channel corresponding to the Y axis, and the output end thereof is connected to the positive power supply end of the coil of the second relay 22, that is, when the mapping channel corresponding to the Y axis outputs a high level, the coil of the second relay 22 is powered on, and when the mapping channel corresponding to the Y axis outputs a low level, the coil of the second relay 22 is powered off.
The third pin 3 corresponds to the mapping channel corresponding to the Z axis, and the output end thereof is connected to the positive power supply end of the coil of the third relay 23, that is, when the mapping channel corresponding to the Z axis outputs a high level, the coil of the third relay 23 is powered on, and when the mapping channel corresponding to the Z axis outputs a low level, the coil of the third relay 23 is powered off.
The fifth pin 5 corresponds to a negative level terminal, i.e., 0V, which corresponds to a negative power supply terminal of the coils connected to the first relay 21, the second relay 22, and the third relay 23.
Referring to fig. 1, in order to protect the relays, the level 0V output at the fifth pin 5 of the interface device 10 is connected to the power supply negative terminals of the coils of the relays through fuses (not labeled), respectively.
Because the output signal of the measuring machine is an active signal, when the measuring machine does not pass through the return-to-origin point operation, the signals output by the mapping channels corresponding to the X axis, the Y axis and the Z axis are all high-level signals, after the measuring machine passes through the return-to-origin point operation, the mapping channels output low-level signals when the current axis coordinate is in the set safe coordinate range, and the mapping channels output high-level signals when the current axis coordinate is out of the set safe coordinate range.
The acquisition device can acquire the safety bit signal of the measuring machine after the measuring machine is operated by returning to the original point, and the safety bit signal of the measuring machine cannot be acquired when the measuring machine is not electrified, the measuring machine is electrified and is not operated by returning to the original point or the current axis coordinate is out of the set safety coordinate range, so that the safety operation of the measuring machine is ensured.
According to actual needs, the acquisition device can be freely designed into a 2NC1NO mode or a 2NO1NC mode, in the 2NC1NO mode, any two relays select to use the normally closed static contact in the conversion contact, the rest relay selects to use the normally open static contact in the conversion contact, in the 2NO1NC mode, any two relays select to use the normally open static contact in the conversion contact, and the rest relay selects to use the normally closed static contact in the conversion contact.
In the 2NC1NO mode, in order to realize setting of the safety bit a in the XYZ space, the normally closed stationary contact 0NC of the changeover contacts of the first relay 21 corresponding to the mapping path of the X axis is selected, the normally closed stationary contact 1NC of the changeover contacts of the second relay 22 corresponding to the mapping path of the Y axis is selected, and the normally open stationary contact 2NO of the changeover contacts of the third relay 23 corresponding to the mapping path of the Z axis is selected.
In the present application, the safe coordinate range corresponding to the mapping channel of the X-axis is set to R1, R1 is set to the interval [ R1, R1'], the safe coordinate range corresponding to the mapping channel of the Y-axis is set to R2, R2 is set to the interval [ R2, R2' ], the safe coordinate range corresponding to the mapping channel of the Z-axis is set to R3 or R4, R3 is set to the interval [ R3, + ∞ ], and R4 is the interval (— ∞, R4).
When the axis coordinate corresponding to the mapping channel of the X axis is within the set interval [ r1, r1' ], the first pin 1 of the interface device 10 outputs a low level signal, at this time, the coil of the corresponding first relay 21 is de-energized, and the normally closed stationary contact 0NC is communicated with the movable contact 0C.
When the axis coordinate corresponding to the mapping channel of the X axis is outside the set interval [ r1, r1' ], the first pin 1 of the interface device 10 outputs a high level signal, at this time, the coil of the corresponding first relay 21 is energized, the normally closed stationary contact 0NC is disconnected from the moving contact 0C, and the normally open stationary contact 0NO is communicated with the moving contact 0C.
When the axis coordinate corresponding to the mapping channel of the Y axis is within the set interval [ r2, r2' ], the second pin 2 of the interface device 10 outputs a low level signal, at this time, the coil of the corresponding second relay 22 is de-energized, and the normally closed stationary contact 1NC is communicated with the movable contact 1C.
When the axis coordinate corresponding to the mapping channel of the Y axis is outside the set interval [ r2, r2' ], the second pin 2 of the interface device 10 outputs a high level signal, at this time, the coil of the corresponding second relay 22 is energized, the normally closed stationary contact 1NC is disconnected from the moving contact 1C, and the normally open stationary contact 1NO is communicated with the moving contact 1C.
When the axis coordinate corresponding to the mapping channel of the Z axis is within the set section [ r3, + ∞ ] or (— infinity, r4] (where r4 is smaller than r3), the third pin 3 of the interface device 10 outputs a high level signal, and at this time, the coil of the corresponding third relay 23 is energized, the normally closed stationary contact 2NC is disconnected from the movable contact 2C, and the normally open stationary contact 2NO is connected to the movable contact 2C.
When the axis coordinate corresponding to the mapping channel of the Z axis is outside the set section [ r3, + ∞ ] or (— infinity, r4] (i.e., the section (r 4, r 3)), the third pin 3 of the interface device 10 outputs a low-level signal, and at this time, the coil of the corresponding third relay 23 is de-energized, and the normally closed stationary contact 2NC communicates with the movable contact 2C.
Therefore, the safety position can be set at the required position, and flexible configuration is realized.
With continued reference to fig. 1, the normally closed stationary contact 0NC of the changeover contacts of the first relay 21 is connected with the movable contact 1C of the changeover contacts of the second relay 22, and the normally closed stationary contact 1NC of the changeover contacts of the second relay 22 is connected with the normally open stationary contact 2NO of the changeover contacts of the third relay 23.
Referring to fig. 1, the collecting device 30 includes a collecting positive terminal Park + and a collecting negative terminal Park-. The collecting positive terminal Park + is connected with the moving contact 0C (i.e. also with the moving contact 1C), and the collecting negative terminal Park-is connected with the moving contact 2C.
After the measuring machine is operated to return to the original point, when the measuring machine is moved to the safety position A, namely, the safety point coordinate value of the X axis is positioned in the safety coordinate range R1, the safety point coordinate value of the Y axis is positioned in the safety coordinate range R2, the safety point coordinate value of the Z axis is positioned in the safety coordinate range R3 or R4, and the contacts 0C-0 NC-1C-1 NC-2 NO-2C are connected in sequence.
Namely, when the measuring machine moves to the safety position A after the operation of returning to the original point, the acquisition positive end Park + -0C-0 NC-1C-1 NC-2 NO-2C-acquisition negative end Park are sequentially connected, at the moment, if the acquisition positive end Park + and the acquisition negative end Park are conducted, the current safety position of the measuring machine is indicated, and if the acquisition positive end Park + and the acquisition negative end Park are not conducted, the current safety position of the measuring machine is indicated.
Due to the safe coordinate range setting of the X axis, the Y axis and the Z axis, the method is suitable for a single-measuring-machine unit-position loading and unloading measuring mode and a multi-position loading and unloading measuring mode of a measuring machine.
The X-axis safe coordinate range R1, the Y-axis safe coordinate range R2, and the Z-axis safe coordinate range R3 or R4 to be set as described above need to be written into the controller of the measuring machine through the acquisition device, and corresponding mapping channels are set, i.e., the X-axis mapping channel corresponds to the first pin 1 of the interface device 10, the Y-axis mapping channel corresponds to the second pin 2 of the interface device 10, and the Z-axis mapping channel corresponds to the third pin 3 of the interface device 10).
Therefore, in order to facilitate the connection between the interface device 10 and the controller of the measuring machine, the interface device 10 in this embodiment employs a pluggable plug, and the pluggable plug may be specifically set as a D-SUB15 pin plug, which is convenient for being inserted into the controller interface of the measuring machine.
In the present application, the collecting positive terminal Park + is a first pin terminal provided at the end of the signal line connected to the moving contact 0C, which is specifically stripped by 30cm at the end of the signal line connected to the moving contact 0C, and then the pin terminal is designed at the stripped position.
Park-is a second press-pin-shaped terminal provided at the end of the signal line connected to the movable contact 2C, which is specifically stripped off 30cm at the end of the signal line connected to the movable contact 2C, and then a press-pin-shaped terminal is designed at the stripped off position, facilitating the acquisition of the safety bit signal, for example, clamping.
The signal for judging whether the measuring machine is in the safe position is directly acquired from the measuring machine through the acquisition device, so that a sensor and a bracket thereof are not used, the acquisition efficiency is high, and the investment cost is reduced; the acquisition device is connected with the controller of the measuring machine through the interface device, so that the installation is convenient, and complicated wiring is avoided; the safety position points of XYZ axes can be collected, and the use safety of the measuring machine is improved; the safety position can be freely set according to the safety coordinate ranges on the set X axis, the set Y axis and the set Z axis, multiple safety position configurations of the measuring machine are met, and the design is flexible.
Example two
Referring to fig. 2, in the 2NO1NC mode, in order to realize the setting of the safety bit a in the XYZ space, the normally open stationary contact 0NO in the transfer contact of the first relay 21 corresponding to the mapping path of the X axis is selected, the normally open stationary contact 1NO in the transfer contact of the second relay 22 corresponding to the mapping path of the Y axis is selected, and the normally closed stationary contact 2NC in the transfer contact of the third relay 23 corresponding to the mapping path of the Z axis is selected.
In the present application, the safe coordinate range corresponding to the mapping channel of the X-axis is set to be R1' or R2', R1' is the interval (— ∞, R1' ], and R2' is the interval [ R2', + ∞), where R1' is smaller than R2', the safe coordinate range corresponding to the mapping channel of the Y-axis is set to be R3' or R4', R3' is the interval (— ∞, R3' ], and R4' is the interval [ R4', + ∞), where R3' is smaller than R4', and the safe coordinate range corresponding to the mapping channel of the Z-axis is set to be R5, and R5 is the interval [ R5, R5 ').
When the axis coordinate corresponding to the mapping channel of the X axis is within the set range (— infinity, r1'] or [ r2', + ∞), the first pin 1 of the interface device 10 outputs a high level signal, and at this time, the coil of the corresponding first relay 21 is energized, and the normally open stationary contact 0NO communicates with the movable contact 0C.
When the axis coordinate corresponding to the mapping channel of the X axis is outside the set section (— ∞, r1'] or [ r2', + ∞ "), the first pin 1 of the interface device 10 outputs a low level signal, and at this time, the coil of the corresponding first relay 21 is de-energized, the normally open stationary contact 0NO is disconnected from the movable contact 0C, and the normally closed stationary contact 0NC is communicated with the movable contact 0C.
When the axis coordinate corresponding to the mapping channel of the Y axis is within the set range (— infinity, r3'] or [ r4', + ∞), the second pin 2 of the interface device 10 outputs a high level signal, and at this time, the coil of the corresponding second relay 22 is energized, and the normally open stationary contact 1NO communicates with the movable contact 1C.
When the axis coordinate corresponding to the mapping channel of the Y axis is outside the set section (— ∞, r3'] or [ r4', + ∞ "), the second pin 2 of the interface device 10 outputs a low level signal, and at this time, the coil of the corresponding second relay 22 is de-energized, the normally open stationary contact 1NO is disconnected from the movable contact 1C, and the normally closed stationary contact 1NC is communicated with the movable contact 1C.
When the axis coordinate corresponding to the mapping channel of the Z axis is within the set interval [ r5, r5' ], the third pin 3 of the interface device 10 outputs a low level signal, at this time, the coil of the corresponding third relay 23 is de-energized, and the normally closed stationary contact 2NC is communicated with the movable contact 2C.
When the axis coordinate corresponding to the mapping channel of the Z axis is outside the set interval [ r5, r5' ], the third pin 3 of the interface device 10 outputs a high level signal, at this time, the coil of the corresponding third relay 23 is energized, the normally closed stationary contact 2NC is disconnected from the moving contact 2C, and the normally open stationary contact 2NO is communicated with the moving contact 2C.
Therefore, the safety position can be set at the required position, and flexible configuration is realized.
With continued reference to fig. 2, the normally open stationary contact 0NO among the changeover contacts of the first relay 21 is connected with the moving contact 1C among the changeover contacts of the second relay 22, and the normally open stationary contact 1NO among the changeover contacts of the second relay 22 is connected with the normally closed stationary contact 2NC among the changeover contacts of the third relay 23.
Referring to fig. 2, the collecting positive terminal Park + is connected to the moving contact 0C (i.e., also to the moving contact 1C), and the collecting negative terminal Park-is connected to the moving contact 2C.
After the measuring machine is operated by returning to the original point, when the measuring machine is moved to the safe position A, namely, the safe point coordinate value of the X axis is positioned in the safe coordinate range R1 'or R2', the safe point coordinate value of the Y axis is positioned in the safe coordinate range R3 'or R4', the safe point coordinate value of the Z axis is positioned in the safe coordinate range R5, and the contacts 0C-0 NO-1C-1 NO-2 NC-2C are connected in sequence.
Namely, when the measuring machine moves to the safety position A after the operation of returning to the original point, the acquisition positive end Park + -0C-0 NO-1C-1 NO-2 NC-2C-acquisition negative end Park are sequentially connected, at the moment, if the acquisition positive end Park + and the acquisition negative end Park are conducted, the current safety position of the measuring machine is indicated, and if the acquisition positive end Park + and the acquisition negative end Park are not conducted, the current safety position of the measuring machine is indicated.
In the 2NO1NC mode, according to the safe coordinate ranges of the X axis and the Y axis of the measuring machine, it means that the machine can stop at a side smaller than r1 'on the X axis, at a side larger than r2' on the X axis, at a side smaller than r3 'on the Y axis, and at a side larger than r 4'. In order to avoid two specific states, the minimum value r1 'or the maximum value r2' needs to be set to a position which cannot be reached, so that only one position of a corresponding shaft of the measuring machine can be ensured, for example, the maximum measuring range of the X shaft of the measuring machine is-10 mm-500 mm, the minimum value is set to 20mm, the maximum value is set to 550mm, under any condition, the X shaft only outputs a high-level signal within the range of-10 mm-20 mm, namely, the first relay 21 corresponding to the X shaft is electrified, a normally-open static contact 0NO is communicated with a movable contact 1C, and at this time, the position measuring machine on the X shaft larger than 550mm cannot reach at all.
Similarly, the same is true for the Y-axis.
Therefore, this case is suitable for the single-measuring-machine single-position loading and unloading measuring mode, but not suitable for the multi-position loading and unloading measuring mode of the measuring machine.
EXAMPLE III
Referring to fig. 3, a flow chart of the acquisition of the safety bit of the measuring machine by the acquisition device as described above is shown.
Referring to fig. 3, the acquisition method process is described in detail as follows.
First, the interface device 10 is plugged into the interface of the measuring machine controller.
Secondly, the measuring machine is powered on, the original point returning operation is executed, and after the original point returning operation is finished, the measuring machine is manually moved to a safety position A, wherein the position of the safety position A is a range limited by a safety coordinate range of an X axis, a safety coordinate range of a Y axis and a safety coordinate range of a Z axis to be set.
And thirdly, opening a parameter setting interface of the controller, setting parameters and corresponding mapping channels, and storing the parameters, wherein the parameters comprise the safe coordinate ranges of the X axis, the Y axis and the Z axis to be set.
Fourth, the controller is restarted to effect the setting of the parameters and mapping channels.
Fifthly, the measuring machine is electrified again and performs the operation of returning to the original point, and then the measuring machine automatically moves to the safety position A.
Sixthly, acquiring signals between Park + and Park-, and judging whether the measuring machine is at a safety position A or not; if the Park + and the Park are conducted, the current safety position A of the measuring machine is indicated, and if the Park + and the Park are disconnected, the current safety position A of the measuring machine is not indicated.
The safety position of the measuring machine can be set by flexibly modifying the parameters of the controller, and whether the measuring machine is in the safety position or not can be automatically acquired, so that the working safety of the measuring machine is ensured. And can automatically move to the safe position after the measuring machine is electrified and the original point returning operation is completed, the safe position point is accurate, the automation degree is high, the manual operation task amount is reduced, and the use experience of operators is improved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (8)
1. A three-coordinate measuring machine safety bit signal acquisition device is characterized by comprising:
the interface device is connected with the controller of the three-coordinate measuring machine and is used for acquiring the set safe coordinate ranges of the X axis, the Y axis and the Z axis of the three-coordinate measuring machine;
the relay module comprises a first relay, a second relay and a third relay, mapping channels corresponding to an X axis, a Y axis and a Z axis of the three-coordinate measuring machine are respectively connected with power supply ends of coils of the first relay, the second relay and the third relay, and normally closed stationary contacts in two switching contacts of the first relay, the switching contacts of the second relay and the switching contacts of the third relay are sequentially connected with normally open stationary contacts in the remaining one switching contact;
and the acquisition device is provided with an acquisition positive end and an acquisition negative end, the acquisition positive end is connected with any movable contact in the two conversion contacts, and the acquisition negative end is connected with the movable contact in the rest one conversion contact.
2. The three coordinate measuring machine safety bit signal acquisition device of claim 1,
the collecting positive terminal is a first pressing pin-shaped terminal arranged at the end of a signal wire connected with a moving contact of the two conversion contacts, and/or
The acquisition negative terminal is a second pressing pin-shaped terminal arranged at the end part of the signal wire connected with the movable contact in the rest of the conversion contacts.
3. The apparatus according to claim 1, wherein a fuse is connected between the power supply terminals of the relay module and the relays.
4. The three coordinate measuring machine safety bit signal acquisition device of any one of claims 1 to 3,
the safety coordinate ranges of two axes of the X-axis, the Y-axis, and the Z-axis corresponding to the two relays of the two switching contacts are set to a first safety range R1 and a second safety range R2, respectively, and the safety coordinate range of the remaining one axis is set to a third safety range R3 or a fourth safety range R4;
wherein R1 is the interval [ R1, R1'], R2 is the interval [ R2, R2' ], R3 is the interval [ R3, + ∞ ], R4 is the interval (— ∞, R4 ].
5. A three-coordinate measuring machine safety bit signal acquisition device is characterized by comprising:
the interface device is connected with the controller of the three-coordinate measuring machine and is used for acquiring the set safe coordinate ranges of the X axis, the Y axis and the Z axis of the three-coordinate measuring machine;
the relay module comprises a first relay, a second relay and a third relay, mapping channels corresponding to an X axis, a Y axis and a Z axis of the three-coordinate measuring machine are respectively connected with power supply ends of coils of the first relay, the second relay and the third relay, and normally open stationary contacts in two of conversion contacts of the first relay, the second relay and the third relay are sequentially connected with normally closed stationary contacts in the rest of the conversion contacts;
and the acquisition device is provided with an acquisition positive end and an acquisition negative end, the acquisition positive end is connected with any movable contact in the two conversion contacts, and the acquisition negative end is connected with the movable contact in the rest one conversion contact.
6. The three coordinate measuring machine safety bit signal acquisition device of claim 5,
the collecting positive terminal is a first pressing pin-shaped terminal arranged at the end of a signal wire connected with a moving contact of the two conversion contacts, and/or
The acquisition negative terminal is a second pressing pin-shaped terminal arranged at the end part of the signal wire connected with the movable contact in the rest of the conversion contacts.
7. The apparatus according to claim 5, wherein a fuse is connected between the negative power supply terminal of the relay module and the negative power supply terminal of each relay.
8. The three coordinate measuring machine safety bit signal acquisition device of any one of claims 5 to 7,
the safety coordinate range of one of the two axes of the X, Y and Z axes corresponding to the two relays of the two switching contacts is set to the first safety range R1 'or the second safety range R2', and the safety coordinate range of the other is set to the third safety range R3 'or the fourth safety range R4'; the safe coordinate range of the remaining one of the X, Y and Z axes is set as a fifth safe range R5;
wherein R1' is the interval (— ∞, R1 '), R2' is the interval [ R2', + ∞ ], R3' is the interval (— ∞, R3 '), R4' is the interval [ R4', + ∞ ], and R5 is the interval [ R5, R5 ').
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