阅读说明：本技术 一种非接触式测量设备 (Non-contact measuring equipment ) 是由 刘光照 刘成 曹葵康 徐一华 杨广 于 2021-03-31 设计创作，主要内容包括：本发明提供一种非接触式测量设备,该测量设备包括主控板、基台、位置获取机构、升降组件、传感器机构和传送调节机构,位置获取机构、升降组件、传感器机构和传送调节机构均与主控板电性连接；该测量设备通过主控板统一调控,位置获取机构将获取的待测量工件的坐标发送给主控板,主控板根据该坐标发送指令给升降组件、第一驱动组件来对传感器的姿态进行调节,主控板根据该坐标发送指令给传送调节机构以调节待测量工件的姿态；测量设备利用机械代替人工对待测量工件进行姿态调节,提高测量效率和测量精度；利用主控板统一控制升降组件、DD马达和传动调节机构,提高传感器测量角度与待测量工件的匹配精度,进一步提高测量设备的测量精度。(The invention provides non-contact measuring equipment which comprises a main control board, a base station, a position acquisition mechanism, a lifting assembly, a sensor mechanism and a transmission adjusting mechanism, wherein the position acquisition mechanism, the lifting assembly, the sensor mechanism and the transmission adjusting mechanism are all electrically connected with the main control board; the measuring equipment is uniformly regulated and controlled through a main control board, the position acquisition mechanism sends the acquired coordinates of the workpiece to be measured to the main control board, the main control board sends an instruction to the lifting assembly and the first driving assembly according to the coordinates to adjust the posture of the sensor, and the main control board sends an instruction to the transmission adjusting mechanism according to the coordinates to adjust the posture of the workpiece to be measured; the measuring equipment utilizes machinery to replace manual work to adjust the posture of the workpiece to be measured, so that the measuring efficiency and the measuring precision are improved; the main control board is used for uniformly controlling the lifting assembly, the DD motor and the transmission adjusting mechanism, the matching precision of the measuring angle of the sensor and the workpiece to be measured is improved, and the measuring precision of the measuring equipment is further improved.)

1. A non-contact measuring device, characterized by comprising a measuring device body (100), the measuring device body (100) comprising:

a main control board;

the base platform (30) comprises a vertical base and a horizontal base (320), and the vertical base is fixedly connected with the horizontal base (320);

the position acquisition mechanism (80) is electrically connected with the main control board, the position acquisition mechanism (80) is fixedly installed on the base platform (30), the position acquisition mechanism (80) is located above the workpiece (1) to be measured, and before measurement, the position acquisition mechanism (80) acquires the current coordinate of the workpiece (1) to be measured and sends the current coordinate to the main control board;

the lifting assembly (40) is electrically connected with the main control board, and the lifting assembly (40) receives the command of the main control board and reciprocates along the direction of the vertical base;

the sensor mechanism (20), the sensor mechanism (20) is electrically connected with the main control board, and the sensor mechanism (20) moves back and forth along with the lifting assembly (40); the sensor mechanism (20) comprises a sensor component and a first driving component (220), the first driving component (220) is installed on one side of the sensor component, and the first driving component (220) is fixedly connected with the lifting component (40); the first driving assembly (220) receives the instruction sent by the main control board and drives the sensor assembly to rotate around the central axis of the sensor assembly;

the conveying adjusting mechanism (60), the conveying adjusting mechanism (60) is electrically connected with the main control board, the conveying adjusting mechanism (60) is positioned below the sensor mechanism (20), the conveying adjusting mechanism (60) is fixedly installed on the horizontal base (320), and the workpiece (1) to be measured is placed on the conveying adjusting mechanism (60); the transmission adjusting mechanism (60) receives the instruction of the main control board, and adjusts the posture of the workpiece (1) to be measured in the horizontal direction, so that the sensor assembly can measure a plurality of measuring positions of the workpiece (1) to be measured.

2. The non-contact measuring device according to claim 1, wherein the sensor assembly comprises a sensor (230), a sensor holder (210) and a rotating shaft (240), the sensor (230) is fixedly mounted on the sensor holder (210), one end of the sensor holder (210) is movably connected with the first driving assembly (220), and the other end of the sensor holder is fixedly connected with the rotating shaft (240).

3. The non-contact measuring device according to claim 1 or 2, wherein the lifting assembly (40) comprises a first slide rail (420), a first slider (410) and a second driving assembly, the first slide rail (420) and the second driving assembly are fixedly mounted on the vertical base, the first slider (410) is slidably connected with the first slide rail (420), and the second driving assembly is electrically connected with the main control board; the second driving assembly receives the instruction of the main control board to drive the first sliding block (410) to reciprocate along the direction of the first sliding rail (420).

4. A contactless measuring device according to claim 3, characterized by the fact that the measuring device body (100) further comprises a rigid coaxial assembly (10), the coaxial assembly (10) being fixedly connected with the lifting assembly (40); a first coaxial hole (110) and a second coaxial hole (120) are formed in the coaxial component (10), and the centers of the first coaxial hole (110) and the second coaxial hole (120) are located on the same straight line; the two sides of the sensor assembly are respectively connected with the first coaxial hole (110) and the second coaxial hole (120).

5. The non-contact measuring device according to claim 4, wherein a third coaxial hole (212) and a fourth coaxial hole are arranged on the sensor fixing seat (210), and the centers of the third coaxial hole (212) and the fourth coaxial hole are on the same straight line; after the installation is finished, the centers of the second coaxial hole (120) and the first coaxial hole (110) are collinear.

6. The non-contact measuring device according to claim 4, wherein a first stopper (213) is fixedly installed on the sensor fixing seat (210), a second stopper (140) and a third stopper (150) are fixedly installed on the coaxial assembly (10), and the second stopper (140) and the third stopper (150) are located at different positions; the second limiting block (140) and the third limiting block (150) block the first limiting block (213) from rotating along with the sensor fixing seat (210).

7. A contactless measuring device according to claim 3, characterized in that the measuring device body (100) further comprises a counterweight assembly (90);

the counterweight assembly (90) comprises a push rod (910) and a third driving assembly (920), one end of the push rod (910) is fixedly connected with the first sliding block (410), and the other end of the push rod is connected with the third driving assembly (920); under normal conditions, the push rod (910) moves along the direction of the first sliding rail (420) along with the first sliding block (410); in case of emergency braking, the push rod (910) holds the first slider (410) under the driving force of the third driving component (920) so that the first slider (410) is stationary relative to the first slide rail (420).

8. The non-contact measuring apparatus according to claim 1 or 2, characterized in that the position acquisition mechanism (80) includes a camera by which the workpiece (1) to be measured on the conveyance adjustment mechanism (60) is photographed before measurement.

9. The noncontact measuring device of claim 1, wherein the conveyance adjustment mechanism (60) includes a first conveyance assembly (610), a second conveyance assembly (620), and a rotation adjustment assembly (630); wherein the content of the first and second substances,

the first transmission assembly (610) comprises a first transmission base (611), a second sliding rail (612), a fourth driving assembly and a second sliding block (613), the first transmission base (611) is fixedly installed on the horizontal base (320), the second sliding rail (612) and the fourth driving assembly are fixedly installed on the first transmission base (611), the second sliding rail (612) is connected with the second sliding block (613) in a sliding mode, and the workpiece (1) to be measured moves back and forth along the direction of the second sliding rail (612) along with the second sliding block (613) under the driving force of the fourth driving assembly;

the second conveying assembly (620) comprises a second conveying base (621), a third slide rail (622), a fifth driving assembly and a third slide block (623), the second conveying base (621) is fixedly connected with the second slide block (613), the fifth driving assembly and the third slide rail (622) are fixedly installed on the second conveying base (621), the third slide block (623) is in sliding connection with the third slide rail (622), and the workpiece (1) to be measured reciprocates along the direction of the third slide rail (622) along with the third slide block (623) under the driving force of the fifth driving assembly;

the rotary adjusting component (630) comprises an adjusting base (631), a rotor and a sixth driving component, wherein the adjusting base (631) is fixedly connected with a third sliding block (623), the sixth driving component is fixedly installed on the adjusting base (631), one end of the rotor is connected with the sixth driving component, and the other end of the rotor is connected with the workpiece (1) to be measured; the workpiece (1) to be measured rotates along with the rotor under the driving force of the sixth driving component.

10. The noncontact measuring device of claim 9, wherein the measuring device body (100) further comprises a fixing assembly (70), the fixing assembly (70) is fixedly connected with the rotor, the workpiece (1) to be measured is placed on the fixing assembly (70), and the fixing assembly (70) follows the rotor to make a rotational movement under the driving force of the sixth driving assembly to adjust the attitude of the workpiece (1) to be measured in the horizontal direction.

Technical Field

The invention relates to the technical field of non-contact measuring equipment, in particular to non-contact measuring equipment.

Background

At present, the measurement of products is generally contact measurement and non-contact measurement, the contact measurement has higher accuracy and reliability, but the contact measurement cost is higher due to the measurement datum point, the abrasion during contact and the like. The non-contact measurement has a fast measurement speed but insufficient accuracy compared with the contact measurement, and a sensor with higher accuracy is used for measurement at present in order to improve the accuracy of the non-contact measurement, such as: the mass of the sensor is heavier, and the inertia generated in the moving process is larger. Generally, through with sensor rigid, other axle cooperation motions measure, but this kind of mode will lead to the space that the board occupy great, and can't realize the multi-angle measurement.

Disclosure of Invention

In view of the above, the present invention provides a non-contact measuring apparatus, which can perform multi-angle measurement by adjusting the posture of a sensor and reduce the occupied space of a base.

In order to solve the technical problems, the invention adopts the following technical scheme:

the non-contact measuring device according to the embodiment of the present invention includes a non-contact measuring device body including:

a main control board;

the base station comprises a vertical base and a horizontal base, and the vertical base is fixedly connected with the horizontal base;

the position acquisition mechanism is electrically connected with the main control board, is fixedly arranged on the base station, is positioned above the workpiece to be measured, and acquires the current coordinate of the workpiece to be measured and sends the current coordinate to the main control board before measurement;

the lifting assembly is electrically connected with the main control board and receives the instruction of the main control board to reciprocate along the direction of the vertical base;

the sensor mechanism is electrically connected with the main control board and reciprocates along with the lifting assembly; the sensor mechanism comprises a sensor component and a first driving component, the first driving component is arranged on one side of the sensor component, and the first driving component is fixedly connected with the lifting component; the first driving assembly receives the instruction sent by the main control board and drives the sensor assembly to rotate around the central axis of the sensor assembly;

the conveying adjusting mechanism is electrically connected with the main control board, is positioned below the sensor mechanism, is fixedly installed on the horizontal base, and is used for placing the workpiece to be measured on the conveying adjusting mechanism; the transmission adjusting mechanism receives the instruction of the main control board and adjusts the posture of the workpiece to be measured in the horizontal direction, so that the sensor assembly can measure a plurality of measuring positions of the workpiece to be measured.

Preferably, the sensor assembly comprises a sensor, a sensor fixing seat and a rotating shaft, the sensor is fixedly installed on the sensor fixing seat, one end of the sensor fixing seat is movably connected with the first driving assembly, and the other end of the sensor fixing seat is fixedly connected with the rotating shaft.

Preferably, the lifting assembly comprises a first slide rail, a first slide block and a second driving assembly, the first slide rail and the second driving assembly are fixedly mounted on the vertical base, the first slide block is connected with the first slide rail in a sliding manner, and the second driving assembly is electrically connected with the main control board; the second driving assembly receives an instruction of the main control board to drive the first sliding block to reciprocate along the direction of the first sliding rail.

Preferably, the non-contact measuring device body further comprises a rigid coaxial assembly, and the coaxial assembly is fixedly connected with the lifting assembly; two first coaxial holes are formed in the coaxial assembly, and the circle centers of the two first coaxial holes are located on the same straight line; and two sides of the sensor assembly are respectively connected with the two first coaxial holes of the coaxial assemblies.

Preferably, two second coaxial holes are formed in the sensor fixing seat, and the centers of the two second coaxial holes are on the same straight line; after the installation is finished, the circle centers of the second coaxial hole and the first coaxial hole are collinear.

Preferably, a first limiting block is fixedly installed on the sensor fixing seat, a second limiting block and a third limiting block are fixedly installed on the coaxial assembly, and the second limiting block and the third limiting block are located at different positions; the second limiting block and the third limiting block stop the first limiting block from following the sensor fixing seat to perform rotary motion.

Preferably, the non-contact measuring device body further comprises a counterweight assembly;

the counterweight assembly comprises a push rod and a third driving assembly, one end of the push rod is fixedly connected with the first sliding block, and the other end of the push rod is connected with the third driving assembly; under the normal condition, the push rod moves along the first slide rail direction along with the first slide block; under the condition of emergency braking, the push rod holds the first sliding block under the driving force of the third driving assembly, so that the first sliding block is static relative to the first sliding rail.

Preferably, the position acquisition mechanism includes a camera by which the workpiece to be measured on the conveyance adjustment mechanism is photographed before measurement.

Preferably, the transport adjustment mechanism comprises a first transport assembly, a second transport assembly and a rotation adjustment assembly; wherein the content of the first and second substances,

the first transmission assembly comprises a first transmission base platform, a second sliding rail, a fourth driving assembly and a second sliding block, the first transmission base platform is fixedly arranged on the horizontal base, the second sliding rail and the fourth driving assembly are fixedly arranged on the first transmission base platform, the second sliding rail is connected with the second sliding block in a sliding mode, and the workpiece to be measured reciprocates along the direction of the second sliding rail along with the second sliding block under the driving force of the fourth driving assembly;

the second conveying assembly comprises a second conveying base station, a third slide rail, a fifth driving assembly and a third slide block, the second conveying base station is fixedly connected with the second slide block, the fifth driving assembly and the third slide rail are fixedly arranged on the second conveying base station, the third slide block is connected with the third slide rail in a sliding manner, and the workpiece to be measured reciprocates along the direction of the third slide rail along with the third slide block under the driving force of the fifth driving assembly;

the rotary adjusting assembly comprises an adjusting base station, a rotor and a sixth driving assembly, the adjusting base station is fixedly connected with a third sliding block, the sixth driving assembly is fixedly arranged on the adjusting base station, one end of the rotor is connected with the sixth driving assembly, and the other end of the rotor is connected with the workpiece to be measured; the workpiece to be measured rotates along with the rotor under the driving force of the sixth driving assembly.

Preferably, the non-contact measuring apparatus body further includes a fixing component, the fixing component is fixedly connected with the rotor, the workpiece to be measured is placed on the fixing component, and the fixing component makes a rotational motion along with the rotor under the driving force of the sixth driving component, so as to adjust the posture of the workpiece to be measured in the horizontal direction.

The technical scheme of the invention at least has one of the following beneficial effects:

the invention discloses a non-contact measuring device, which is uniformly regulated and controlled by a main control board, wherein a position acquisition mechanism transmits acquired coordinates of a workpiece to be measured to the main control board, and the main control board transmits an instruction to a lifting assembly and a first driving assembly according to the coordinates to regulate the posture of a sensor; the main control board sends an instruction to the transmission adjusting mechanism according to the coordinates so as to adjust the posture of the workpiece to be measured, the posture of the sensor is matched with the posture of the workpiece to be measured so as to realize multi-angle measurement of the product, and the non-contact measuring equipment occupies a small space.

Drawings

FIG. 1 is a schematic overall structure diagram of an embodiment of the present invention;

FIG. 2 is a schematic partial structure diagram according to an embodiment of the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 2;

FIG. 4 is a partial schematic view of an embodiment of the present invention;

FIG. 5 is a side view of a sensor mechanism of an embodiment of the present invention;

FIG. 6 is a partial schematic view of an embodiment of the present invention;

FIG. 7 is an enlarged view at B in FIG. 6;

FIG. 8 is an enlarged view at C of FIG. 6;

FIG. 9 is a partial schematic view of an embodiment of the present invention;

FIG. 10 is a schematic structural view of a coaxial assembly in an embodiment of the present invention;

FIG. 11 is a partial structural cross-sectional view of an embodiment of the present invention;

FIG. 12 is an exploded view of a portion of the structure of an embodiment of the present invention;

fig. 13 is a partial structural diagram of an embodiment of the invention.

Reference numerals:

1. a workpiece to be measured; 100. a measuring device body; 10. a coaxial assembly; 110. a first coaxial hole; 120. a second coaxial bore; 130. a first hollowed-out region; 140. a second limiting block; 150. a third limiting block; 20. a sensor mechanism; 210. a sensor holder; 211. a second hollowed-out region; 212. a third coaxial hole; 213. a first stopper; 220. a first drive assembly; 221. a fifth coaxial hole; 230. a sensor; 240. a rotating shaft; 231. a balancing weight; 30. A base station; 311. a first vertical base; 312. a second vertical base; 320. a horizontal base; 330. a box-type base station; 340. a support bracket; 40. a lifting assembly; 410. a first slider; 411. connecting blocks; 420. a first slide rail; 50. coaxial pins; 510. a coaxial portion; 520. a fixed part; 60. a conveyance adjustment mechanism; 610. a first transfer assembly; 611. a first transfer base; 612. a second slide rail; 613. a second slider; 620. a second transfer assembly; 621. a second transfer station; 622. a third slide rail; 623. a third slider; 630. a rotation adjustment assembly; 631. adjusting the base station; 70. a fixing assembly; 710. fixing the base station; 80. a position acquisition mechanism; 90. a counterweight assembly; 910. a push rod; 920. and a third drive assembly.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.

The invention provides a non-contact measuring device, which measures various parameters of a workpiece to be measured by using the optical characteristics of a sensor, and adjusts the posture of the sensor by using a lifting assembly and a DD (direct drive) motor so as to increase the measuring range of the sensor; the horizontal posture of the workpiece to be measured is adjusted by using the transmission adjusting mechanism, so that the posture of the workpiece to be measured is adjusted by replacing manpower, and the measuring efficiency and the measuring precision are improved; the non-contact measuring equipment utilizes the main control board to uniformly control the lifting assembly, the DD motor and the transmission adjusting mechanism, improves the matching precision of the measuring angle of the sensor and the workpiece to be measured, and further improves the measuring precision of the measuring equipment.

A noncontact measuring device according to an embodiment of the present invention will be described first in detail with reference to the drawings.

Specifically, as shown in fig. 1 to 13, the non-contact measuring device provided by the present invention includes a non-contact measuring device body 100, where the non-contact measuring device body 100 includes a main control board (not shown), a base 30, a position acquiring mechanism 80, a sensor mechanism 20, a lifting assembly 40, and a conveying adjusting mechanism 60; wherein the content of the first and second substances,

as shown in fig. 1, the base 30 includes a vertical base and a horizontal base 320, the vertical base is fixedly connected to the horizontal base 320, the vertical base includes a first vertical base 311 and a second vertical base 312, the sensor mechanism 20 is located between the first vertical base 311 and the second vertical base 312, and the sensor mechanism 20 can perform a lifting motion relative to the vertical base following the lifting assembly 40. The base 30 further comprises a box-type base 330 and a support bracket 340, the box-type base 330 is fixedly connected with the support bracket 340, the electronic control device is mounted in the box-type base 330, and the main control board is preferably mounted in the box-type base 330. The position acquisition mechanism 80 is fixedly mounted on the support bracket 340, and the position acquisition mechanism 80 is located above the conveying adjustment mechanism 60.

The main control board is preferably a PLC control system and is used for regulating and controlling the whole measuring equipment. The main control board receives the coordinate information fed back by the position acquisition mechanism 80, and after performing data processing according to the coordinate information and other instruction information, the main control board sends an instruction to the lifting assembly 40, the first driving assembly 220, namely the DD motor and the transmission adjustment mechanism 60, so as to adjust the posture of the sensor and the posture of the workpiece to be measured 1, and match the posture of the sensor and the posture of the workpiece to be measured.

The position acquisition mechanism 80 is electrically connected with the main control board, the position acquisition mechanism 80 is fixedly installed on the support bracket 340, the position acquisition mechanism 80 is located above the workpiece 1 to be measured, and before measurement, the position acquisition mechanism 80 acquires the current coordinates of the workpiece 1 to be measured and sends the current coordinates to the main control board. The position acquiring mechanism 80 includes a camera, and photographs the workpiece 1 to be measured on the conveying adjusting mechanism 60 by the camera before measurement, and sends the photographed photograph to the main control board.

The lifting assembly 40 is electrically connected with the main control board, and the lifting assembly 40 receives the instruction of the main control board and reciprocates along the direction of the vertical base. In an embodiment of the present invention, as shown in fig. 6 and 8, the lifting assembly 40 includes a first slide rail 420, a first slider 410 and a second driving assembly, the first slide rail 420 and the second driving assembly are fixedly mounted on the vertical base, the first slider 410 is slidably connected to the first slide rail 420, and the second driving assembly is electrically connected to the main control board; the second driving assembly receives the instruction from the main control board to drive the first slider 410 to reciprocate along the first sliding rail 420. The second driving assembly is preferably a linear motor, and compared with a traditional screw rod module, the precision of the linear motor is higher, and certainly not limited to the linear motor. The measuring device body 100 preferably includes two lifting assemblies 40, the two lifting assemblies 40 are respectively mounted on the first vertical base 311 and the second vertical base 312, and the sensor mechanism 20 and the coaxial assembly 10 are driven to reciprocate in the vertical direction by dual drives, so as to be compatible with different workpieces to be measured, thereby not only improving the compatibility of the measuring device body 100, but also increasing the measuring range of the measuring device.

The sensor mechanism 20 is electrically connected with the main control board, and the sensor mechanism 20 reciprocates along with the lifting assembly 40; the sensor mechanism 20 comprises a sensor component and a first driving component 220, the first driving component 220 is installed at one side of the sensor component, and the first driving component 220 is fixedly connected with the lifting component 40; the first driving assembly 220 receives the command from the main control board and drives the sensor assembly to rotate around the central axis thereof. The first drive assembly 220 is preferably, but not limited to, a DD motor. The DD motor drives the sensor assembly to rotate, so that the sensor can measure the workpiece to be measured at multiple angles, and different measurement requirements are met.

The transmission adjusting mechanism 60 is electrically connected with the main control board, the transmission adjusting mechanism 60 is positioned below the sensor mechanism 20, the transmission adjusting mechanism 60 is fixedly arranged on the horizontal base 320, and the workpiece 1 to be measured is arranged on the transmission adjusting mechanism 60; the conveyance adjusting mechanism 60 receives an instruction from the main control board, and adjusts the attitude of the workpiece 1 to be measured in the horizontal direction, so that the sensor assembly measures a plurality of measurement positions of the workpiece 1 to be measured.

In one embodiment of the present invention, as shown in fig. 2 and 3, the conveyance adjusting mechanism 60 includes a first conveyance assembly 610, a second conveyance assembly 620, and a rotation adjusting assembly 630; wherein the content of the first and second substances,

the first transmission assembly 610 includes a first transmission base 611, a second slide rail 612, a fourth driving assembly and a second slide block 613, the first transmission base 611 is fixedly mounted on the horizontal base 320, the second slide rail 612 and the fourth driving assembly are fixedly mounted on the first transmission base 611, the second slide rail 612 is slidably connected with the second slide block 613, and the workpiece 1 to be measured reciprocates along the second slide rail 612 along the second slide rail 613 under the driving force of the fourth driving assembly. The fourth drive assembly is preferably, but not limited to, a linear motor. The first transfer unit 610 is for transferring the workpiece 1 to be measured to the target position, the workpiece to be measured being reciprocated in the X-axis direction in the coordinate system as shown in fig. 4 by the driving force of the fourth driving unit.

The second conveying assembly 620 comprises a second conveying base 621, a third slide rail 622, a fifth driving assembly and a third slide block 623, the second conveying base 621 is fixedly connected with the second slide block 613, the fifth driving assembly and the third slide rail 622 are fixedly mounted on the second conveying base 621, the third slide block 623 is slidably connected with the third slide rail 622, and the workpiece 1 to be measured reciprocates along the direction of the third slide rail 622 along with the third slide block 623 under the driving force of the fifth driving assembly. The fifth drive assembly is preferably, but not limited to, a linear motor. The second transfer unit 620 functions as the first transfer unit 610 for transferring the workpiece 1 to be measured to the target position, and preferably, the transfer direction of the second transfer unit 620 is perpendicular to the transfer direction of the first transfer unit 610, and the range of displacement of the workpiece 1 to be measured in the horizontal direction is satisfied by transferring the workpiece in two directions. The workpiece 1 to be measured is reciprocated in the Y-axis direction in the coordinate system as shown in fig. 4 by the driving force of the fifth driving unit.

The rotation adjusting assembly 630 comprises an adjusting base 631, a rotor (not shown in the figure) and a sixth driving assembly (not shown in the figure), the adjusting base 631 is fixedly connected with the third slider 623, the sixth driving assembly is fixedly installed on the adjusting base 631, one end of the rotor is connected with the sixth driving assembly, and the other end of the rotor is connected with the workpiece 1 to be measured; the workpiece 1 to be measured makes a rotational motion following the rotor under the driving force of the sixth driving assembly. The fifth drive assembly is preferably, but not limited to, a DD motor. The workpiece 1 to be measured is driven by the DD motor to rotate so that the adjusted posture of the workpiece 1 to be measured is suitable for the posture required by the sensor. The workpiece 1 to be measured is rotated along the U-axis in the coordinate system as shown in fig. 4 by the drive of the DD motor. The sensor mechanism 20 adjusts the X-axis, the Y-axis and the U-axis of the workpiece to be measured, so that the posture of the workpiece 1 to be measured matches the measurement requirement of the sensor, and the measurement precision of the workpiece to be measured is improved.

In an embodiment of the present invention, as shown in fig. 6 to 13, the non-contact measuring apparatus body further includes a rigid coaxial assembly 10, and the coaxial assembly 10 is fixedly connected to the lifting assembly 40; the coaxial assembly 10 is provided with a first coaxial hole 110 and a second coaxial hole 120, and the centers of the first coaxial hole 110 and the second coaxial hole 120 are located on the same straight line; the first coaxial hole 110 and the second coaxial hole 120 are respectively connected to both sides of the sensor assembly. The rigid coaxial module 10 can be fixedly mounted on the base 30 and can also perform a lifting motion relative to the base 30, and the centers of the first coaxial hole 110 and the second coaxial hole 120 are located on the same straight line. The first coaxial hole 110 and the second coaxial hole 120 are preferably integrally formed, so as to ensure that the centers of the first coaxial hole 110 and the second coaxial hole 120 are on the same straight line. Preferably, as shown in fig. 10, a plurality of first hollow-out regions 130 are disposed on the coaxial assembly 10, and the first hollow-out regions 130 on the coaxial assembly 10 are used to reduce the weight of the coaxial assembly 10, so as to reduce the pressure of the driving assembly when the coaxial assembly 10 performs the lifting movement. The diameters of the first coaxial hole 110 and the second coaxial hole 120 may be the same or different, and are set according to specific requirements.

As shown in fig. 6, the first coaxial hole 110 and the second coaxial hole 120 are respectively connected to both sides of the sensor mechanism 20, and the coaxial assembly 10 is connected to both sides of the sensor mechanism 20 through the first coaxial hole 110 and the second coaxial hole 120. The first driving component 220 is installed at one side of the sensor component, and the first driving component 220 is fixedly connected with the coaxial component 10; after the installation is completed, the centers of the first coaxial hole 110 and the second coaxial hole 120 are collinear with the central axis of the sensor assembly; the sensor assembly performs a rotational movement around its central axis under the driving force of the first driving assembly 220 to measure the workpiece 1 to be measured. The first drive assembly 220 is preferably, but not limited to, a DD motor. The first driving assembly 220 is installed at one side of the sensor assembly, and the mass of the sensor assembly is large, so that the coaxial precision is difficult to ensure in the process that the first driving assembly 220 drives the sensor assembly to rotate. The coaxial assemblies 10 are fixedly mounted on two sides of the sensor assembly, the coaxial assemblies 10 made of rigid materials enable the sensor assembly to rotate around the central axis of the sensor assembly all the time in the rotating process, the measuring accuracy of the measuring equipment body 100 is improved, and the rigid coaxial assemblies 10 are preferably made of metal materials.

In an embodiment of the present invention, as shown in fig. 11, fig. 11 is a cross-sectional view of the coaxial assembly 10, the rotating shaft 240, the first driving assembly 220 and the sensor fixing base 210 after being installed; the sensor assembly comprises a sensor 230, a sensor fixing seat 210 and a rotating shaft 240, wherein the sensor 230 is fixedly installed on the sensor fixing seat 210, one end of the sensor fixing seat 210 is fixedly connected with the first driving assembly 220, the other end of the sensor fixing seat 210 is fixedly connected with the rotating shaft 240, and the rotating shaft 240 is matched with the inner diameter of the first coaxial hole 110 or the second coaxial hole 120. The sensor is driven by the first drive assembly, the DD motor, to rotate back and forth in the direction W as shown in fig. 5. The sensor 230 is preferably a linear confocal sensor suitable for high precision and continuous non-contact measurement, although the sensor 230 is not limited to a linear confocal sensor. A third coaxial hole 212 and a fourth coaxial hole (not shown in the figure) are arranged on the sensor fixing seat 210, and the circle centers of the third coaxial hole 212 and the fourth coaxial hole are on the same straight line; after the installation is completed, the third coaxial hole 212 is collinear with the center of the first coaxial hole 110. The center of the third coaxial hole 212, the center of the first coaxial hole 110, the center of the rotating shaft 240 and the central axis of the sensor 230 are collinear. The sensor fixing base 210 is provided with a plurality of second hollow areas 211, and the second hollow areas 211 and the first hollow areas 130 on the coaxial component 10 have the same function and are used for reducing the overall mass of the measuring equipment. As shown in fig. 8, the sensor assembly further includes a weight 231, and the weight 231 is mounted on the sensor holder 210, so that the center axis of rotation of the sensor 230 is adjusted to be collinear with the center of the first coaxial hole 110 by mounting the weight 231.

In an embodiment of the present invention, as shown in fig. 13, a first stopper 213 is fixedly installed on the sensor fixing seat 210, a second stopper 140 and a third stopper 150 are fixedly installed on the coaxial assembly 10, and the second stopper 140 and the third stopper 150 are located at different positions; the second stopper 140 and the third stopper 150 block the first stopper 213 from rotating along with the sensor holder 210. The first stopper 213, the second stopper 140 and the third stopper 150 define an angular range in which the sensor 230 rotates, and the size of the angular range is set according to specific requirements. The arrangement of the first stopper 213, the second stopper 140 and the third stopper 150 can prevent the sensor assembly from colliding with the coaxial assembly 10 during the rotation process, thereby preventing the sensor 230 from being damaged.

In an embodiment of the present invention, as shown in fig. 6 and 8, the measuring apparatus body 100 further includes a weight assembly 90;

the counterweight assembly 90 comprises a push rod 910 and a third driving assembly 920, wherein one end of the push rod 910 is fixedly connected with the first sliding block 410, and the other end is connected with the third driving assembly 920; under normal conditions, the push rod 910 follows the first slider 410 to move along the first sliding rail 420; in case of emergency braking, the push rod 910 holds the first slider 410 under the driving force of the third driving assembly 920, so that the first slider 410 is stationary with respect to the first slide rail 420. The push rod 910 is fixed on the connecting block 411 through a fixing member, and the connecting block 411 is fixedly connected with the first sliding block 410. The third driving assembly 920 is preferably a brake cylinder, the braking principle of the counterweight assembly 90 is similar to that of the brake cylinder, when an emergency braking situation occurs, the brake cylinder locks the push rod 910 so that the push rod 910 can hold the first slider 410, and the counterweight assembly 90 enables the sensor mechanism 20 to stop at any position of the first slide rail 420 under any situation, so as to avoid the occurrence of equipment damage caused by the fact that the sensor mechanism 20 cannot be immediately braked and stopped under an emergency power failure situation; in addition, the counterweight assembly 90 solves the problem that the high-precision linear motor has no braking function.

In an embodiment of the present invention, as shown in fig. 2 and 3, the measuring apparatus body 100 further includes a fixing component 70, the fixing component 70 is fixedly connected to the rotor, the workpiece 1 to be measured is placed on the fixing component 70, and the fixing component 70 rotates along with the rotor under the driving force of the fifth driving component to adjust the posture of the workpiece 1 to be measured in the horizontal direction. The fixing member 70 is below the sensor mechanism 20, and the workpiece 1 to be measured is fixed to the upper surface of the fixing member 70. The fixing assembly 70 includes a fixing base 710, a vacuum pumping assembly (not shown) and a plurality of suction cups (not shown), the fixing base 710 is fixedly connected to the rotor, the vacuum pumping assembly is fixedly mounted in the fixing base 710, and the suction cups are fixedly mounted on the fixing base 710. The suction cups suck the workpiece 1 to be measured by the vacuum suction assembly so that the workpiece 1 to be measured is fixed to the surface of the fixing base 710.

The present invention also provides a method for installing a non-contact measuring device, as shown in fig. 11 and 12, comprising the steps of:

firstly, penetrating the coaxial pin 50 through the third coaxial hole 212, the first coaxial hole 110 and the fifth coaxial hole 221 on the first driving assembly 220 and fixing the coaxial pin so that the centers of the third coaxial hole 212, the first coaxial hole 110 and the fifth coaxial hole 221 are positioned on the same straight line; the third coaxial hole 212, the first coaxial hole 110 and the fifth coaxial hole 221 have the same hole diameter.

And secondly, fixedly connecting the sensor fixing seat 210, the first driving assembly 220 and the coaxial assembly 10 by using a fixing member.

Thirdly, after the sensor fixing seat 210, the first driving assembly 220 and the coaxial assembly 10 are fixedly connected, the coaxial pin 50 is removed; wherein the outer diameter of the coaxial pin 50 matches the inner diameter of the third coaxial bore 212, the first coaxial bore 110 and the fifth coaxial bore 221. The coaxial pin 50 is preferably integrally formed, and the coaxial pin 50 is utilized during installation to improve the coaxial accuracy of the sensor mount 210, the DD motor, and the coaxial assembly 10. The coaxial pin 50 includes a coaxial shaft portion 510 and a fixing portion 520, and after the coaxial shaft portion 510 penetrates through the centers of the third coaxial hole 212, the first coaxial hole 110 and the fifth coaxial hole 221, the fixing portion 520 fixes the coaxial pin 50 and then fixedly connects the sensor fixing base 210, the first driving assembly 220 and the coaxial assembly 10. After the sensor fixing seat 210, the first driving component 220 and the coaxial component 10 are fixedly mounted, the coaxial pin 50 is removed, so that the coaxial precision among the sensor fixing seat 210, the first driving component 220 and the coaxial component 10 is prevented from being reduced due to external force in the mounting process. The mounting method ensures the coaxial precision among the sensor fixing seat 210, the first driving component 220 and the coaxial component 10, and further ensures the measurement precision of the measuring equipment body 100 in the measurement process.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.