CN209979129U - Lever type force standard machine - Google Patents
Lever type force standard machine Download PDFInfo
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- CN209979129U CN209979129U CN201920173941.3U CN201920173941U CN209979129U CN 209979129 U CN209979129 U CN 209979129U CN 201920173941 U CN201920173941 U CN 201920173941U CN 209979129 U CN209979129 U CN 209979129U
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Abstract
The utility model provides a lever force standard machine, it includes: the device comprises a force standard machine lever, a force sensor to be measured, a balance weight, an automatic leveling device, a force standard machine base and a weight group; the automatic leveling device comprises a servo motor, a servo motion controller, a ball screw, a balance weight nut and a laser sensor for measuring the distance value between the automatic leveling device and the force standard machine base; the ball screw is fixed at the bottom of the lever of the force standard machine, and the balance weight nut is fixed on the ball screw; the laser sensor is fixed at one end of the ball screw, the laser sensor is in communication connection with the servo motion controller, the servo motion controller is in communication connection with the servo motor, and the servo motor is in mechanical connection with one end of the ball screw. The utility model provides a force standard machine leveling process is simple, can improve the leveling precision.
Description
Technical Field
The utility model relates to an instrument and instrument technical field especially relates to a lever force standard machine.
Background
The lever type force standard machine is an important basic device in the field of mechanical sensor detection, is used for detecting and calibrating a tension sensor, a compression sensor and the like, and can also be used for detecting and calibrating a force measuring ring. The device is more and more accepted by people due to the characteristics of convenient operation, advanced control system, good stability and the like.
The lever type force standard machine host machine is a complete machine consisting of a lever device, a locking device, a test space, a leveling transmission device, a weight loading device, a base and an electric control cabinet. The lever of the force standard machine is used as a core component of the force standard machine and needs to be leveled after a force sensor to be measured is installed each time, at present, a manual leveling mode is mainly adopted, the manual leveling is mainly achieved through experience, the leveling precision is low, and the process is complicated.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a lever force standard machine, the leveling process is simple, can improve the leveling precision.
The utility model provides a pair of lever force standard machine, include: the device comprises a force standard machine lever, a force sensor to be measured, a balance weight, an automatic leveling device, a force standard machine base and a weight group;
the weight stack is hung below the second end of the force standard machine lever;
the force standard machine lever and the balance weight are arranged above the force standard machine base, the force sensor to be measured is fixedly arranged below the balance weight, and the force sensor to be measured is positioned above the force standard machine base;
the automatic leveling device is fixedly arranged below the force standard machine lever and is positioned above the force standard machine base;
the automatic leveling device includes: the device comprises a servo motor, a servo motion controller, a ball screw, a balance weight nut and a laser sensor, wherein the laser sensor is used for measuring the distance value between the servo motor and a base of the force standard machine;
the ball screw is fixed at the bottom of the lever of the force standard machine, and the counterweight nut can move along the ball screw and is fixed on the ball screw;
the laser sensor is fixedly arranged at one end of the ball screw, the laser sensor is in communication connection with the servo motion controller, the servo motion controller is in communication connection with the servo motor, and the servo motor is in mechanical connection with one end of the ball screw.
Preferably, a locking device in communication connection with the laser sensor is arranged at the second end of the force standard machine lever;
the locking device is used for locking the force standard machine lever.
Preferably, the automatic leveling device further comprises: a buzzer;
the laser sensor is further used for sending a prompt signal to the buzzer when the force standard machine lever is balanced, and controlling the buzzer to give out prompt sound.
Preferably, the ball screw is disposed in parallel with the force standard machine lever.
Preferably, the first end of the ball screw is connected with the servo motor, the second end of the ball screw is fixedly connected with the force standard machine lever through a fixing plate, the servo motor is fixedly connected with the force standard machine lever, and the laser sensor is fixed at the bottom of the servo motor.
Preferably, a power supply access hole of the servo motor and the laser sensor and a signal transmission hole of the laser sensor are arranged outside the servo motor, wherein the laser sensor transmits the notification signal to the locking device through the signal transmission hole.
Preferably, a switch button of the servo motor and a standard value and fixed value button for setting the standard value for the laser sensor are further arranged outside the servo motor.
Preferably, a power adapter is also included; the power adapter is electrically connected with the power access hole and used for supplying power to the servo motor and the laser sensor.
Implement the utility model discloses, following beneficial effect has: the utility model provides a force standard machine simple structure, adopt high accuracy servo motor, servo motion controller and laser sensor, when the force standard lever is unbalanced, laser sensor can measure the distance value between its self and the force standard machine base, then servo motion controller is according to measured distance value control servo motor, drive force standard machine lever by servo motor and rotate, make the counter weight nut remove on force standard machine lever, thereby make force standard machine lever reach balanced, the operation is convenient easy, it removes to control the counter weight nut again after the range finding through laser sensor, can improve the leveling precision.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only 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 structural diagram of a lever type force standard machine provided by the present invention.
Fig. 2 is a schematic structural diagram of the automatic leveling device provided by the present invention.
Detailed Description
The utility model provides a lever force standard machine, it includes that figure 1 is shown: the device comprises a force standard machine lever 1, a force sensor 2 to be measured, a balance weight 3, an automatic leveling device 4, a force standard machine base 5 and a weight group 15.
Wherein, the balance weight 3 is arranged at the first end of the force standard machine lever 1, and the weight stack 15 is hung below the second end of the force standard machine lever 1.
The force standard machine lever 1 and the balance weight 3 are installed above a force standard machine base 5, the force sensor 2 to be measured is fixedly arranged in a test space 6 below the balance weight 3, and the force sensor 2 to be measured is located above the force standard machine base 5.
The automatic leveling device 4 is fixedly arranged below the force standard machine lever 1, and the automatic leveling device 4 is positioned above the force standard machine base 5.
The automatic leveling device 4 comprises the components shown in fig. 2: a servo motor 7, a servo motion controller (also called a servo motion control card, not shown in the figure), a ball screw 8, a balance weight nut 9 and a laser sensor 11.
The ball screw 8 is fixed at the bottom of the force standard machine lever 1, and the balance weight nut 9 can be fixed on the ball screw 8 in a manner of moving left and right along the ball screw 8.
The laser sensor 11 is fixedly arranged at one end of the ball screw 8, the laser sensor 11 is in communication connection with the servo motion controller, the servo motion controller is in communication connection with the servo motor 7, and the servo motor 7 is in mechanical connection with one end of the ball screw 8.
The laser sensor 11 is used for emitting laser to the force standard machine base 5, receiving laser returned by the force standard machine base 5, calculating a distance value between the laser sensor 11 and the force standard machine base 5 according to the returned laser, and transmitting the distance value to the servo motion controller. Generally, the distance value measured here can be approximately regarded as the distance between the counterweight nut 9 on the ball screw 8 and the force standard machine base 5. In fig. 2, reference numeral 13 denotes an infrared laser emitting and sensing area.
The servo motion controller is used for controlling the servo motor 7 to work according to the distance value, and controlling the ball screw 8 through the servo motor 7 to drive the balance weight nut 9 to move on the ball screw 8, so that the force standard machine lever 1 is balanced.
Further, the second end of the force standard machine lever 1 is provided with a locking device 14 in communicative connection with the laser sensor 11.
The laser sensor 11 is also used to compare the measured distance value with its internally set standard value, when the measured distance value is consistent with the standard value, it is determined that the force standard machine lever 1 is balanced, and when the force standard machine lever 1 is balanced, it sends a notification signal to the locking device 14.
The locking device 14 is used to lock the force standard machine lever 1 in response to the signaling signal.
Further, the automatic leveling device 4 further includes: a buzzer 12.
The laser sensor 11 is also used for sending a prompt signal to the buzzer 12 when the force standard machine lever 1 is balanced, and controlling the buzzer 12 to send out a prompt sound. Wherein, the laser sensor 11 and the buzzer 12 are both fixed at the bottom outside the servo motor 7.
Further, the ball screw 8 is arranged in parallel with the force standard machine lever 1.
Further, a first end of the ball screw 8 is connected with the servo motor 7, a second end of the ball screw 8 is fixedly connected with the force standard machine lever 1 through the fixing plate 20, so that the ball screw 8 is favorably reduced in shaking, the servo motor 7 is fixedly connected with the force standard machine lever 1, and the laser sensor 11 is fixed at the bottom of the servo motor 7.
Further, the servo motor 7 is externally provided with a power access hole 10 of the servo motor 7 and the laser sensor 11 and a signal transmission hole 17 of the laser sensor 11, wherein the laser sensor 11 transmits a notification signal to the locking device 14 through the signal transmission hole 17.
Further, an on-off button 18 of the servo motor 7 and a standard value-fixed button 19 for setting a standard value to the laser sensor 11 are provided outside the servo motor 7.
Specifically, when the force standard machine is not operated, the force standard machine lever 1 is in a horizontal position, the laser sensor 11 below the force standard machine lever 1 measures and calculates the distance from the photoelectric generation position on the laser sensor 11 to the upper surface of the force standard machine base 5 at the moment to serve as a standard value, and the standard value fixed value button 19 is pressed at the moment to record the standard value. When the force sensor 2 to be measured is placed in a test space and is connected with the lever 1 of the force standard machine, due to the gravity action of the force sensor 2, the lever type force standard machine does not keep a balance state any more, the force sensor 2 to be measured vertically moves downwards for a certain distance, at the moment, the laser sensor 11 acquires the distance between the laser sensor 11 and the base 5 of the force standard machine after the change, the servo motor 7 is controlled to rotate by the servo motion controller, the ball screw 8 is driven to rotate, so that the balance weight nut 9 makes linear displacement in the left and right directions, the displacement has high precision, the balance weight nut 9 is far away from the servo motor 7 until the distance value measured by the laser sensor 11 is consistent with a standard value, at the moment, the buzzer 12 gives out a prompt sound, the lever 1 of the force standard machine is in a horizontal state, and simultaneously, after the locking device 14 receives a notification signal of the, the lever is immediately locked.
Further, the lever type force standard machine further comprises a power adapter 16; the power adapter 16 is electrically connected to the power access hole 10 and is used for supplying power to the servo motor 7 and the laser sensor 11.
The utility model provides a force standard machine simple structure adopts high accuracy servo motor 7, servo motion controller and diffuse reflection type semiconductor laser sensor 11, removes complicated manpower leveling process from, and convenient easy going improves the leveling precision, still can realize leveling process automation.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (8)
1. A lever force gauge machine, comprising: the device comprises a force standard machine lever (1), a force sensor to be measured (2), a balance weight (3), an automatic leveling device (4), a force standard machine base (5) and a weight group (15);
the balance weight (3) is arranged at the first end of the force standard machine lever (1), and the weight group (15) is hung below the second end of the force standard machine lever (1);
the force standard machine lever (1) and the balance weight (3) are installed above the force standard machine base (5), the force sensor (2) to be measured is fixedly arranged below the balance weight (3), and the force sensor (2) to be measured is located above the force standard machine base (5);
the automatic leveling device (4) is fixedly arranged below the force standard machine lever (1) and the automatic leveling device (4) is positioned above the force standard machine base (5);
the automatic leveling device (4) comprises: the device comprises a servo motor (7), a servo motion controller, a ball screw (8), a balance weight nut (9) and a laser sensor (11) for measuring the distance value between the servo motor and the force standard machine base (5);
the ball screw (8) is fixed at the bottom of the force standard machine lever (1), and the counterweight nut (9) can be movably fixed on the ball screw (8) along the ball screw (8);
laser sensor (11) fixed the setting is in the one end of ball screw (8), laser sensor (11) with communication connection between the servo motion controller, servo motion controller with communication connection between servo motor (7), servo motor (7) with the one end mechanical connection of ball screw (8).
2. A lever type force standard machine as claimed in claim 1, wherein the second end of the force standard machine lever (1) is provided with a locking device (14) in communication connection with the laser sensor (11);
the locking device (14) is used for locking the force standard machine lever (1).
3. A leverage force standard machine according to claim 2, characterised in that the automatic levelling means (4) further comprises: a buzzer (12);
the laser sensor (11) is further used for sending a prompt signal to the buzzer (12) when the force standard machine lever (1) is balanced, and controlling the buzzer (12) to give out prompt sound.
4. A lever type force standard machine as claimed in claim 1, characterized in that the ball screw (8) is arranged in parallel with the force standard machine lever (1).
5. A lever type force standard machine as claimed in claim 1, wherein a first end of the ball screw (8) is connected with the servo motor (7), a second end of the ball screw (8) is fixedly connected with the force standard machine lever (1) through a fixing plate (20), the servo motor (7) is fixedly connected with the force standard machine lever (1), and the laser sensor (11) is fixed at the bottom of the servo motor (7).
6. A lever type force standard machine as claimed in claim 2, characterized in that the servo motor (7) is externally provided with a power access hole (10) of the servo motor (7) and the laser sensor (11) and a signal transmission hole (17) of the laser sensor (11), wherein the laser sensor (11) sends a notification signal to the locking device (14) through the signal transmission hole (17).
7. A lever type force standard machine as claimed in claim 6, characterized in that the servo motor (7) is externally provided with a switch button (18) of the servo motor (7) and a standard value fixed button (19) for setting a standard value to the laser sensor (11).
8. A leverage force standard machine as claimed in claim 6 further comprising a power adapter (16); the power adapter (16) is electrically connected with the power access hole (10) and used for supplying power to the servo motor (7) and the laser sensor (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920173941.3U CN209979129U (en) | 2019-01-31 | 2019-01-31 | Lever type force standard machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920173941.3U CN209979129U (en) | 2019-01-31 | 2019-01-31 | Lever type force standard machine |
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| Publication Number | Publication Date |
|---|---|
| CN209979129U true CN209979129U (en) | 2020-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920173941.3U Active CN209979129U (en) | 2019-01-31 | 2019-01-31 | Lever type force standard machine |
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| CN (1) | CN209979129U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109580090A (en) * | 2019-01-31 | 2019-04-05 | 辽宁红沿河核电有限公司 | A kind of Lever-type Standard Force Measuring Machine |
-
2019
- 2019-01-31 CN CN201920173941.3U patent/CN209979129U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109580090A (en) * | 2019-01-31 | 2019-04-05 | 辽宁红沿河核电有限公司 | A kind of Lever-type Standard Force Measuring Machine |
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