CN110398379B - Inclination angle testing device - Google Patents
Inclination angle testing device Download PDFInfo
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- CN110398379B CN110398379B CN201910849162.5A CN201910849162A CN110398379B CN 110398379 B CN110398379 B CN 110398379B CN 201910849162 A CN201910849162 A CN 201910849162A CN 110398379 B CN110398379 B CN 110398379B
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- 238000012360 testing method Methods 0.000 title claims abstract description 27
- 230000033001 locomotion Effects 0.000 claims abstract description 82
- 238000005096 rolling process Methods 0.000 claims abstract description 53
- 230000000670 limiting effect Effects 0.000 claims description 43
- 238000000034 method Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 description 17
- 230000005540 biological transmission Effects 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The invention provides a high-reliability dip angle testing device, wherein a first linear motion device is arranged between a base and a first mounting frame; the first driving device is arranged on the base and drives the first mounting frame to do linear reciprocating motion on the base; the first wedge-shaped table is arranged on the upper surface of the first mounting frame; the first cam is arranged on the first rotating frame through a first mounting seat; the second wedge-shaped table is arranged on the upper surface of the first mounting frame; the second cam is arranged on the first rotating frame through a second mounting seat; the first wedge-shaped table and the second wedge-shaped table are vertically arranged on the first mounting frame along the height direction; the gradient of the first wedge-shaped table inclined plane is opposite to that of the second wedge-shaped table inclined plane, and the lower end of the first wedge-shaped table inclined plane is opposite to that of the second wedge-shaped table inclined plane; the inclined plane of the first wedge-shaped table is in rolling fit with the first cam, and the inclined plane of the second wedge-shaped table is in rolling fit with the second cam. The device has the advantages of simple structure, high reliability and difficult failure, and can well maintain the precision and durability of the device.
Description
Technical Field
The invention relates to the field of automobile performance testing, in particular to an inclination angle testing device.
Background
Most of the existing automobile passenger doors are automatic doors, and door plates are connected with a driving motor through a transmission mechanism. The transmission mechanism can be a rotating arm and a door shaft, the door shaft is vertically arranged on one side of the door plate, one end of the rotating arm is fixedly connected with the door shaft, and the other end of the rotating arm is rotationally connected with the side wall of the door plate. The driving motor drives the door shaft to rotate positively and negatively, so as to drive the door plate to open and close, and realize the automatic control of the automobile passenger door.
The automobile passenger door needs to simulate the assembly condition of a real automobile in a test and inspection link, and the opening and closing of the automobile passenger door are simulated so as to test whether the opening and closing of the automobile door in the state of ascending and descending slopes and left and right inclination is normal or not. The existing dip angle testing device generally comprises a base, a platform and a driving device, wherein the driving device is generally a hydraulic device or a cylinder device, the bottom end of the driving device is installed on the base, the top end of the driving device is connected with one side of the platform, a vehicle door is installed on the platform, and the hydraulic device or the cylinder device drives the platform to incline, so that the simulation of the state of the vehicle door is realized. However, the hydraulic device or the air cylinder device in the technical scheme is lifted or lowered for a plurality of times, and the hydraulic device or the air cylinder device is repeatedly acted by the gravity action of the platform and the vehicle door, so that failure is easy to occur, and the reliability is low.
Disclosure of Invention
The invention aims to provide a tilt angle testing device with high reliability.
The technical scheme adopted for solving the technical problems is as follows: the dip angle testing device comprises a base; the device also comprises a first driving device, a first rotating frame, a first mounting frame, a first rotating structure and a first cam group;
a first linear motion device is arranged between the base and the first mounting frame; the first driving device is arranged on the base and drives the first mounting frame to do linear reciprocating motion on the base;
the first cam group comprises a first cam mechanism and a second cam mechanism;
the first cam mechanism comprises a first wedge table and a first cam; the first wedge-shaped table is arranged on the upper surface of the first mounting frame; the first cam is arranged on the first rotating frame through a first mounting seat, and is rotationally connected with the first mounting seat;
the second cam mechanism comprises a second wedge table and a second cam; the second wedge-shaped table is arranged on the upper surface of the first mounting frame; the second cam is arranged on the first rotating frame through a second mounting seat, and is rotationally connected with the second mounting seat;
The first wedge-shaped table and the second wedge-shaped table are vertically arranged on the first mounting frame along the height direction; the gradient of the first wedge-shaped table inclined plane is opposite to that of the second wedge-shaped table inclined plane, and the lower end of the first wedge-shaped table inclined plane is opposite to that of the second wedge-shaped table inclined plane;
the inclined surface of the first wedge-shaped table is in rolling fit with the first cam, and the movement track of the first cam on the inclined surface of the first wedge-shaped table forms a first rolling track; the inclined surface of the second wedge-shaped table is in rolling fit with a second cam, and the movement track of the second cam on the inclined surface of the second wedge-shaped table forms a second rolling track;
the first rotating frame is connected with the base through a first rotating structure; the first rotating structure is provided with a first rotating axis, and the first rotating frame rotates around the first rotating axis relative to the base;
the first rolling track and the second rolling track are respectively perpendicular to the first rotation axis;
the first wedge-shaped table and the second wedge-shaped table form a first wedge-shaped table group, and the first rotating structure is positioned at the lateral side of the length direction of the first wedge-shaped table group.
Further, the first linear motion device comprises a first sliding rail and a first sliding block;
The first sliding rail is arranged on the upper surface of the base, and the first sliding block is arranged on the lower surface of the first mounting frame;
the first sliding rail is in sliding fit with the first sliding block;
the first driving device is positioned at one end of the first sliding rail in the length direction;
the length of the first wedge-shaped table and the length of the second wedge-shaped table are respectively parallel to the length of the first sliding rail.
Further, the first driving device comprises a first driving motor and a first screw rod structure;
the first driving motor is arranged on the base and is positioned at one end of the first sliding rail in the length direction;
the first screw rod structure comprises a first screw rod and a first nut, one end of the first screw rod is connected with the first driving motor, and the other end of the first screw rod is rotationally connected with the first fixing seat; the first fixing seat is arranged on the base;
the first screw rod is arranged in parallel with the first sliding rail along the length direction;
the first nut is installed on the first installation frame, and the first nut is in threaded connection with the first screw rod.
Further, the first rotating structure comprises a first connecting plate, a first rotating shaft and a first rotating seat;
the first connecting plate is arranged on the lower surface of the first rotating frame;
The first rotating seat is arranged on the base; the first rotating seat comprises a first limiting plate and a second limiting plate which are oppositely arranged;
the first connecting plate is positioned between the first limiting plate and the second limiting plate;
the first rotating shaft is fixedly arranged on the first connecting plate, and two ends of the first rotating shaft are respectively positioned at two sides of the first connecting plate;
the first limiting plate and the second limiting plate are respectively connected with two ends of the first rotating shaft in a rotating mode.
Further, the device also comprises a second driving device, a second rotating frame, a second mounting frame, a second rotating structure and a second cam group;
the second rotating frame, the second mounting frame and the first rotating frame are sequentially arranged from top to bottom;
a second linear motion device is arranged between the second mounting frame and the first rotating frame; the second driving device is arranged on the first rotating frame and drives the second mounting frame to do linear reciprocating motion on the first rotating frame;
the second cam group comprises a third cam mechanism and a fourth cam mechanism;
the third cam mechanism comprises a third wedge table and a third cam; the third wedge-shaped table is arranged on the upper surface of the second installation frame; the third cam is arranged on the lower surface of the second rotating frame through a third mounting seat, and is rotationally connected with the third mounting seat;
The fourth cam mechanism comprises a fourth wedge table and a fourth cam; the fourth wedge-shaped table is arranged on the upper surface of the second installation frame; the fourth cam is arranged on the lower surface of the second rotating frame through a fourth mounting seat, and the fourth cam is rotationally connected with the fourth mounting seat;
the third wedge-shaped table and the fourth wedge-shaped table are vertically arranged on the second mounting frame along the height direction; the gradient of the third wedge-shaped table inclined plane is opposite to that of the fourth wedge-shaped table inclined plane, and the lower end of the third wedge-shaped table inclined plane is opposite to that of the fourth wedge-shaped table inclined plane;
the inclined surface of the third wedge-shaped table is in rolling fit with a third cam, and the movement track of the third cam on the inclined surface of the third wedge-shaped table forms a third rolling track; the inclined surface of the fourth wedge-shaped table is in rolling fit with a fourth cam, and the movement track of the fourth cam on the inclined surface of the fourth wedge-shaped table forms a fourth rolling track;
the second rotating frame is connected with the first rotating frame through a second rotating structure; the second rotating structure is provided with a second rotating axis, and the second rotating frame rotates around the second rotating axis relative to the first rotating frame;
the third rolling track and the fourth rolling track are respectively perpendicular to the second rotation axis;
The third wedge-shaped table and the fourth wedge-shaped table form a second wedge-shaped table group, and the second rotating structure is positioned at the lateral side of the length direction of the second wedge-shaped table group;
the motion trail of the second installation frame is perpendicular to the motion trail of the first installation frame.
Further, the second linear motion device comprises a second sliding rail and a second sliding block;
the second sliding rail is arranged on the first rotating frame, and the second sliding block is arranged on the second mounting frame;
the second sliding rail is in sliding fit with the second sliding block;
the second driving device is positioned at one end of the second sliding rail in the length direction;
the length of the third wedge-shaped table and the length of the fourth wedge-shaped table are respectively parallel to the length of the second sliding rail;
the length of the first sliding rail is perpendicular to the length of the second sliding rail.
Further, the second driving device comprises a second driving motor and a second screw rod structure;
the second driving motor is arranged on the first rotating frame and is positioned at one end of the second sliding rail in the length direction;
the second screw rod structure comprises a second screw rod and a second nut, one end of the second screw rod is connected with a second driving motor, and the other end of the second screw rod is rotationally connected with a second fixing seat; the second fixing seat is arranged on the first rotating frame;
The second screw rod is arranged in parallel with the second sliding rail along the length direction;
the second nut is arranged on the second mounting frame and is in threaded connection with the second screw rod;
the second fixing seat, the second driving motor and the second screw rod structure are all located below the second installation frame.
Further, the second rotating structure comprises a second connecting plate, a second rotating shaft and a second rotating seat;
the second rotating seat is arranged on the lower surface of the second rotating frame and comprises a third limiting plate and a fourth limiting plate which are oppositely arranged;
the second connecting plate is arranged on the first rotating frame;
the second connecting plate is positioned between the third limiting plate and the fourth limiting plate;
the second rotating shaft penetrates through the second connecting plate and is rotationally connected with the second connecting plate; and two ends of the second rotating shaft are fixedly connected with the third limiting plate and the fourth limiting plate respectively.
Further, two first cam groups are arranged, and the two first cam groups are respectively arranged at two sides of the length direction of the first screw rod;
the first linear motion devices are arranged in a plurality, and the first linear motion devices are respectively located at two sides of the length direction of the first screw rod.
Further, the device also comprises a first angle sensor and a second sensorSecond angle sensorAnd a controller;
the first angle sensor is arranged on the first rotating structure, and the second angle sensor is arranged on the second rotating structure; the controller is arranged on the base;
the controller is respectively in communication connection with the first angle sensor, the second angle sensor, the first driving device and the second driving device.
Compared with the prior art, the invention has the beneficial effects that: the invention provides a tilt angle testing device with high reliability. The device has a simple structure, the driving device is separated from the wedge-shaped table which bears the impact, and the precision and the durability of the device can be well maintained. The first cam structure is matched with the second cam structure, the third cam structure is matched with the fourth cam structure, the reliability is high, and the failure is not easy to occur. The device can not only realize the rotation of the automobile passenger door around the x axis or around the y axis respectively, but also realize the rotation of the automobile passenger door around the x axis and the y axis simultaneously so as to simulate the position and the test condition of the automobile passenger door under different road conditions. The closed-loop control can be carried out on the rotating angle, and the testing precision is high. And the whole process is automatically operated, so that the manpower and the cost are saved.
Drawings
FIG. 1 is an exploded view of the present invention;
FIG. 2 is a schematic view of the structure of the first turret base and the second turret base of the present invention;
FIG. 3 is a front view of the present invention;
reference numerals: 1-a base; 2-a first mounting frame; 3-a first turret; 4-a first wedge stage; 5-a first cam; 6-a first mounting seat; 7-a second wedge stage; 8-a second cam; 9-a second mounting seat; 10-a first slide rail; 11-a first slider; 12-a first drive motor; 13-a first screw rod; 14-a first nut; 15-a first fixing seat; 16-a first connection plate; 17-a first spindle; 18-a first rotating seat; 19-a second turret; 20-a second mounting frame; 21-a third wedge stage; 22-a third cam; 23-a third mount; 24-fourth wedge stage; 25-fourth cams; 26-fourth mount; 27-a second slide rail; 28-a second slider; 29-a second drive motor; 30-a second screw rod; 31-a second nut; 32-a second fixing seat; 33-a second rotating seat; 34-a second spindle; 35-a second connection plate; 36-a first angle sensor; 37-a second angle sensor; 38-a first decelerator; 39-a housing; 40-second decelerator.
Detailed Description
The invention will be further described with reference to the drawings and examples.
As shown in the drawings, the inclination angle testing device comprises a base 1; the device also comprises a first driving device, a first rotating frame 3, a first mounting frame 2, a first rotating structure and a first cam group; a first linear motion device is arranged between the base 1 and the first mounting frame 2; the first driving device is arranged on the base 1 and drives the first mounting frame 2 to do linear reciprocating motion on the base 1; the first cam group comprises a first cam mechanism and a second cam mechanism; the first cam mechanism comprises a first wedge table 4 and a first cam 5; the first wedge-shaped table 4 is arranged on the upper surface of the first mounting frame 2; the first cam 5 is mounted on the first rotating frame 3 through a first mounting seat 6, and the first cam 5 is rotationally connected with the first mounting seat 6; the second cam mechanism comprises a second wedge-shaped table 7 and a second cam 8; the second wedge-shaped table 7 is arranged on the upper surface of the first mounting frame 2; the second cam 8 is arranged on the first rotating frame 3 through a second mounting seat 9, and the second cam 8 is rotationally connected with the second mounting seat 9; the first wedge-shaped table 4 and the second wedge-shaped table 7 are vertically arranged on the first mounting frame 2 along the height direction; the slope of the inclined plane of the first wedge-shaped table 4 is opposite to that of the inclined plane of the second wedge-shaped table 7, and the lower end of the inclined plane of the first wedge-shaped table 4 and the lower end of the inclined plane of the second wedge-shaped table 7 are arranged in a back-to-back manner; the inclined plane of the first wedge-shaped table 4 is in rolling fit with the first cam 5, and the movement track of the first cam 5 on the inclined plane of the first wedge-shaped table 4 forms a first rolling track; the inclined surface of the second wedge-shaped table 7 is in rolling fit with a second cam 8, and the movement track of the second cam 8 on the inclined surface of the second wedge-shaped table 7 forms a second rolling track; the first rotating frame 3 is connected with the base 1 through a first rotating structure; the first rotating structure is provided with a first rotating axis, and the first rotating frame 3 rotates relative to the base 1 around the first rotating axis; the first rolling track and the second rolling track are respectively perpendicular to the first rotation axis; the first wedge-shaped table 4 and the second wedge-shaped table 7 form a first wedge-shaped table group, and the first rotating structure is positioned at the lateral side of the length direction of the first wedge-shaped table group.
The first mounting frame 2 is mounted above the base 1 through a first linear motion device, and the first driving device drives the first mounting frame 2 to do linear reciprocating motion on the base 1. The first driving device is arranged on the base 1, the first driving device provides power for the movement of the first mounting frame 2, and the first linear movement device provides a guiding function for the movement of the first mounting frame 2. There are various embodiments of the first linear motion device: in a first specific embodiment, the first linear motion device includes a first chute and a first pulley, the first chute is mounted on the base 1, the first pulley is mounted on the first mounting frame 2, and the first chute is in rolling fit with the first pulley. In the second embodiment, the first linear motion device comprises a first sliding rail 10 and a first sliding block 11, the first sliding rail 10 is installed on the base 1, the first sliding block 11 is installed on the first installation frame 2, and the first sliding rail 10 and the first sliding block 11 are in sliding fit. The above two embodiments can both realize the guiding function of the first linear motion device on the motion of the first mounting frame 2. The first wedge table 4 and the second wedge table 7 are both installed on the first installation frame 2 in the height direction, the first cam 5 is installed on the first rotating frame 3 through the first installation seat 6, and the second cam 8 is installed on the first rotating frame 3 through the second installation seat 9. The first mount 6 provides rotational support for the first cam 5 and the second mount 9 provides rotational support for the second cam 8. The first mounting seat 6 and the second mounting seat 9 may each include a top plate, one end of the top plate is provided with a first side plate, the other end is provided with a second side plate, the first side plate and the second side plate are oppositely arranged, and the top plate, the first side plate and the second side plate form a mounting space. The first rotating frame 3 is connected with the base 1 through a first rotating structure, and the first rotating frame 3 rotates relative to the base 1 around a first rotating axis of the first rotating structure. The first wedge-shaped table 4 and the second wedge-shaped table 7 form a first wedge-shaped table group, and the first rotating structure is positioned at the lateral side of the length direction of the first wedge-shaped table group, and can be both sides of the length direction of the first wedge-shaped table group or the same side of the length direction of the first wedge-shaped table group. The first wedge table set may be one, and in this case, the first wedge table 4 and the second wedge table 7 may be respectively disposed at two ends of the base 1, so as to provide a balanced supporting function for the first rotating frame 3. The first wedge table group may also be a plurality, in which case the first wedge table 4 and the second wedge table 7 are arranged adjacently. The first wedge-shaped table groups are uniformly arranged on the base 1 and jointly provide a balance supporting function for the first rotating frame 3. The first driving device drives the first mounting frame 2 to do linear reciprocating motion under the cooperation of the first linear motion device, and drives the first cam 5 to roll on the inclined surface of the first wedge-shaped table 4 to form a first rolling track; the second cam 8 rolls on the inclined surface of the second wedge table 7 to form a second rolling track. The first rolling track and the second rolling track are respectively perpendicular to the first rotation axis. Since the slope of the inclined plane of the first wedge-shaped table 4 is opposite to that of the inclined plane of the second wedge-shaped table 7, the lower end of the inclined plane of the first wedge-shaped table 4 is opposite to that of the inclined plane of the second wedge-shaped table 7. Thus, when the first driving device drives the first mounting frame 2 to move towards the lower end of the inclined surface of the second wedge-shaped table 7, the first cam 5 rolls from the lower end of the inclined surface of the first wedge-shaped table 4 to the top end, and the second cam 8 rolls from the top end of the inclined surface of the second wedge-shaped table 7 to the lower end; when the first driving device drives the first mounting frame 2 to move towards the direction of the lower end of the inclined surface of the first wedge-shaped table 4, the first cam 5 rolls from the top end of the inclined surface of the first wedge-shaped table 4 to the lower end, and the second cam 8 rolls from the lower end of the inclined surface of the second wedge-shaped table 7 to the top end. For example: in specific implementation, the passenger door of the automobile is arranged on the first rotating frame 3, and the first driving device drives the first mounting frame 2 to do linear motion towards the direction of the lower end of the inclined plane of the first wedge-shaped table 4. When the first cam 5 rolls towards the lower end of the inclined surface of the first wedge-shaped table 4, the second cam 8 rolls towards the top end of the inclined surface of the second wedge-shaped table 7, and the first rotating frame 3 is driven to deflect towards the lower end of the inclined surface of the first wedge-shaped table 4 to a proper position, the first driving device stops working. The first cam 5 is on the inclined surface of the first wedge-shaped table 4 and receives a downward acting force along the inclined surface; the second cam 8 is pulled upward along the inclined surface of the second wedge table 7, and the positions of the first cam 5 and the second cam 8 reach an equilibrium state. The inclined surface of the second wedge-shaped table 7 has a limiting effect on the downward rolling of the first cam 5, and the first cam 5 stops to continue rolling towards the lower end of the inclined surface of the first wedge-shaped table 4. The fixing, namely self-locking, of the positions of the first cam 5 and the second cam 8 when the rolling is stopped is realized. The first turret 3 rotates about a first axis of rotation, effecting a deflection of the first turret 3 and the vehicle passenger door relative to the position of the base 1.
Since the first pulley is engaged with the first chute in the first embodiment of the first linear motion device, the first pulley is easily damaged. In order to solve the above technical problem, preferably, the first linear motion device includes a first slide rail 10 and a first slider 11; the first sliding rail 10 is arranged on the upper surface of the base 1, and the first sliding block 11 is arranged on the lower surface of the first mounting frame 2; the first sliding rail 10 is in sliding fit with the first sliding block 11; the first driving device is positioned at one end of the first sliding rail 10 in the length direction; the length of the first wedge-shaped table 4 and the length of the second wedge-shaped table 7 are respectively parallel to the length of the first sliding rail 10. The first driving device is located at one end of the first sliding rail 10 in the length direction, and the first sliding rail 10 is in sliding fit with the first sliding block 11, so that the first mounting frame 2 can do linear motion on the base 1. Because the length of the first wedge-shaped table 4 and the length of the second wedge-shaped table 7 are respectively parallel to the length of the first sliding rail 10, the first mounting frame 2 moves linearly relative to the first sliding rail 10, and the linear movement is converted into the rotation of the first rotating frame 3 around the first rotating axis through the cooperation of the first cam group.
The first driving device has various embodiments: in a first embodiment, the first driving device includes a first driving motor 12 and a first screw structure; the first driving motor 12 is installed on the base 1, and the first driving motor 12 is positioned at one end of the first sliding rail 10 in the length direction; the first screw rod structure comprises a first screw rod 13 and a first nut 14, one end of the first screw rod 13 is connected with the first driving motor 12, and the other end of the first screw rod is rotationally connected with the first fixing seat 15; the first fixing seat 15 is arranged on the base 1; the first screw rod 13 is arranged in parallel with the first slide rail 10 along the length direction; the first nut 14 is installed on the first installation frame 2, and the first nut 14 is in threaded connection with the first screw rod 13. The first fixing base 15 is mounted on the base 1, and the first fixing base 15 provides rotational support for the first screw rod 13. The first driving motor 12 works to drive the first screw rod 13 to rotate, and the first nut 14 installed on the first installation frame 2 moves in the length direction of the first screw rod 13 under the threaded fit of the first screw rod 13. The first driving motor 12 can rotate forward and backward, and further, the linear reciprocating motion of the first mounting frame 2 is realized. The first drive motor 12 may also be fitted with a first reduction gear 38. In a second specific embodiment, the first driving device may also be a hydraulic device or an electric push rod, where one end of the hydraulic device or the electric push rod is installed on the base 1, and the other end is connected to the first mounting frame 2.
The first rotating structure has various embodiments: in a first embodiment, the first rotating structure includes a first connecting plate 16, a first rotating shaft 17 and a first rotating seat 18; the first connecting plate 16 is installed on the lower surface of the first turret 3; the first rotating seat 18 is arranged on the base 1; the first rotating seat 18 comprises a first limiting plate and a second limiting plate which are oppositely arranged; the first connecting plate 16 is positioned between the first limiting plate and the second limiting plate; the first rotating shaft 17 is fixedly arranged on the first connecting plate 16, and two ends of the first rotating shaft 17 are respectively positioned at two sides of the first connecting plate 16; the first limiting plate and the second limiting plate are respectively connected with two ends of the first rotating shaft 17 in a rotating mode. The first rotary seat 18 and the first connecting plate 16 are connected by a first rotary shaft 17. The first and second limiting plates provide rotational support for the first shaft 17, the first shaft 17 rotates relative to the first and second limiting plates, and the first shaft 17 is fixed relative to the first connecting plate 16. The first limiting plate and the second limiting plate can be respectively provided with bearings, the first rotating shaft 17 is in rotating fit with the bearings, and transmission precision is high. In a second specific embodiment, the first rotating structure may also be a universal cradle head, where the upper end of the universal cradle head is connected to the first rotating frame 3, and the lower end of the universal cradle head is connected to the base 1. As the universal cradle head in the prior art, rotation can be realized, and then rotational connection between the first rotating frame 3 and the base 1 is realized.
The first driving device, the first linear motion device, the first rotating frame 3, the first mounting frame 2, the first rotating structure and the first cam group are matched with each other, the first driving device drives the first rotating frame 3 to rotate around a first rotating axis, the first rotating axis is collinear with the x axis of the rectangular coordinate system, and further the automobile passenger door mounted on the first rotating frame 3 rotates around the x axis. In order to simultaneously realize the rotation of the vehicle passenger door around the y axis, it is preferable to further comprise a second driving device, a second rotating frame 19, a second mounting frame 20, a second rotating structure and a second cam group; the second rotating frame 19, the second mounting frame 20 and the first rotating frame 3 are sequentially arranged from top to bottom; a second linear motion device is arranged between the second mounting frame 20 and the first rotating frame 3; the second driving device is arranged on the first rotating frame 3 and drives the second mounting frame 20 to do linear reciprocating motion on the first rotating frame 3; the second cam group comprises a third cam mechanism and a fourth cam mechanism; the third cam mechanism comprises a third wedge table 21 and a third cam 22; the third wedge stage 21 is mounted on the upper surface of the second mounting frame 20; the third cam 22 is mounted on the lower surface of the second rotating frame 19 through a third mounting seat 23, and the third cam 22 is rotatably connected with the third mounting seat 23; the fourth cam mechanism comprises a fourth wedge table 24 and a fourth cam 25; the fourth wedge 24 is mounted on the upper surface of the second mounting frame 20; the fourth cam 25 is mounted on the lower surface of the second rotating frame 19 through a fourth mounting seat 26, and the fourth cam 25 is rotatably connected with the fourth mounting seat 26; the third wedge-shaped table 21 and the fourth wedge-shaped table 24 are vertically arranged on the second mounting frame 20 along the height direction; the slope of the inclined plane of the third wedge-shaped table 21 is opposite to that of the inclined plane of the fourth wedge-shaped table 24, and the lower end of the inclined plane of the third wedge-shaped table 21 is opposite to that of the inclined plane of the fourth wedge-shaped table 24; the inclined surface of the third wedge-shaped table 21 is in rolling fit with a third cam 22, and the movement track of the third cam 22 on the inclined surface of the third wedge-shaped table 21 forms a third rolling track; the inclined surface of the fourth wedge-shaped table 24 is in rolling fit with a fourth cam 25, and the movement track of the fourth cam 25 on the inclined surface of the fourth wedge-shaped table 24 forms a fourth rolling track; the second rotating frame 19 is connected with the first rotating frame 3 through a second rotating structure; the second rotating structure has a second rotating axis, and the second rotating frame 19 rotates around the second rotating axis relative to the first rotating frame 3; the third rolling track and the fourth rolling track are respectively perpendicular to the second rotation axis; the third wedge-shaped table 21 and the fourth wedge-shaped table 24 form a second wedge-shaped table group, and the second rotating structure is positioned at the lateral side of the length direction of the second wedge-shaped table group; the movement track of the second mounting frame 20 is perpendicular to the movement track of the first mounting frame 2. The second mounting frame 20 is mounted on the first turret 3 by a second linear motion device, and the second driving device is mounted on the first turret 3. The second linear motion device provides a guiding function for the movement of the second mount 20. The second linear motion device has various embodiments: in a first embodiment, the second linear motion device includes a second chute and a second pulley, the second chute is mounted on the first turret 3, the second pulley is mounted on the second mounting frame 20, and the second chute is in rolling fit with the second pulley. The length of the second sliding groove is perpendicular to the length of the first sliding rail 10. In a second specific embodiment, the second linear motion device includes a second sliding rail 27 and a second sliding block 28, where the second sliding rail 27 is installed on the first rotating frame 3, the second sliding block 28 is installed on the second installation frame 20, and the second sliding rail 27 is in sliding fit with the second sliding block 28. The length of the second rail 27 is perpendicular to the length of the first rail 10. In the above two embodiments, the guiding function of the second linear motion device on the motion of the second mounting frame 20 can be achieved, and the motion track of the first mounting frame 2 is perpendicular to the motion track of the second mounting frame 20. The third wedge table 21 and the fourth wedge table 24 are vertically installed on the second installation frame 20 in the height direction, the third cam 22 is installed on the lower surface of the second rotation frame 19 through the third installation seat 23, and the fourth cam 25 is installed on the lower surface of the second rotation frame 19 through the fourth installation seat 26. The third mount 23 provides rotational support for the third cam 22 and the fourth mount 26 provides rotational support for the fourth cam 25. The third mounting seat 23 and the fourth mounting seat 26 may each include a first fixing plate, one side of which is provided with a second fixing plate, and the first fixing plate and the second fixing plate are disposed opposite to each other and have a rotation space. The second rotating structure has a second axis of rotation, through which the first rotating frame 3 is connected to the second rotating frame 19. The third wedge table 21 and the fourth wedge table 24 form a second wedge table group, and the second rotating structure is located at a side of the second wedge table group in the length direction, and may be the same side of the second wedge table group in the length direction or may be two sides of the second wedge table group in the length direction. The second driving device drives the second mounting frame 20 to do linear reciprocating motion to drive the third cam 22 to roll on the inclined surface of the third wedge-shaped table 21 so as to form a third rolling track; the fourth cam 25 rolls on the inclined surface of the fourth wedge table 24 to form a fourth rolling locus. The third rolling track and the fourth rolling track are respectively perpendicular to the second rotation axis. Since the slope of the third wedge-shaped table 21 is opposite to the slope of the fourth wedge-shaped table 24, the lower end of the slope of the third wedge-shaped table 21 is opposite to the lower end of the slope of the fourth wedge-shaped table 24. Therefore, when the third cam 22 rolls from the top to the bottom of the inclined surface of the third wedge table 21, the fourth cam 25 rolls from the bottom to the top of the inclined surface of the fourth wedge table 24; when the third cam 22 rolls from the lower end to the upper end of the inclined surface of the third wedge table 21, the fourth cam 25 rolls from the upper end to the lower end of the inclined surface of the fourth wedge table 24. For example: in specific implementation, the passenger door of the automobile is mounted on the second rotating frame 19, when the second driving device drives the second mounting frame 20 to do linear motion towards the direction of the lower end of the inclined plane of the third wedge-shaped table 21, the third cam 22 rolls from the top end of the inclined plane of the third wedge-shaped table 21 to the lower end, the fourth cam 25 rolls from the bottom end of the inclined plane of the fourth wedge-shaped table 24 to the top end, and the second driving device stops working when the second rotating frame 19 is driven to deflect towards the direction of the lower end of the inclined plane of the third wedge-shaped table 21 to a proper position. The third cam 22 is applied with a downward force along the inclined surface on the inclined surface of the third wedge stage 21; the fourth cam 25 is pulled upward along the inclined surface of the fourth wedge stage 24, and the positions of the third cam 22 and the fourth cam 25 reach an equilibrium state. The inclined surface of the fourth wedge table 24 has a limit effect on the downward rolling of the third cam 22, and the third cam 22 stops continuing to roll toward the lower end of the inclined surface of the third wedge table 21. The fixing of the position when the third cam 22 and the fourth cam 25 stop rolling, i.e. the self-locking, is achieved. The second turret 19 rotates about a second axis of rotation, effecting a deflection of the second turret 19 and the vehicle passenger door relative to the position of the first turret 3. The second axis of rotation is collinear with the y-axis of the rectangular coordinate system, and both the second turret 19 and the vehicle passenger door are capable of effecting rotation about the y-axis.
The second pulley is easily damaged due to the cooperation of the second pulley and the second chute in the first embodiment of the second linear motion device. In order to solve the above technical problem, preferably, the second linear motion device includes a second sliding rail 27 and a second sliding block 28; the second sliding rail 27 is installed on the first rotating frame 3, and the second sliding block 28 is installed on the second installing frame 20; the second sliding rail 27 is in sliding fit with the second sliding block 28; the second driving device is positioned at one end of the second sliding rail 27 in the length direction; the length of the third wedge-shaped table 21 and the length of the fourth wedge-shaped table 24 are respectively parallel to the length of the second sliding rail 27; the length of the first slide rail 10 is perpendicular to the length of the second slide rail 27. The second driving device is located at one end of the second sliding rail 27 in the length direction, and the second sliding rail 27 is in sliding fit with the second sliding block 28, so that the second mounting frame 20 can linearly move on the first rotating frame 3. Since the length of the third wedge-shaped table 21 and the length of the fourth wedge-shaped table 24 are parallel to the length of the second slide rail 27, respectively, the second mounting frame 20 moves linearly relative to the second slide rail 27, and the linear movement is converted into rotation of the second rotating frame 19 around the second rotation axis through the cooperation of the second cam group. The length of the first sliding rail 10 is perpendicular to the length of the second sliding rail 27, and the movement track of the second mounting frame 20 is perpendicular to the movement track of the first mounting frame 2.
The second driving device has various embodiments: in a first embodiment, the second driving device comprises a second driving motor 29 and a second screw structure; the second driving motor 29 is mounted on the first rotating frame 3, and the second driving motor 29 is positioned at one end of the second sliding rail 27 in the length direction; the second screw rod structure comprises a second screw rod 30 and a second nut 31, one end of the second screw rod 30 is connected with a second driving motor 29, and the other end of the second screw rod is rotatably connected with a second fixing seat 32; the second fixing seat 32 is installed on the first rotating frame 3; the second screw rod 30 is arranged in parallel with the second sliding rail 27 along the length direction; the second nut 31 is installed on the second installation frame 20, and the second nut 31 is in threaded connection with the second screw rod 30; the second fixing seat 32, the second driving motor 29 and the second screw structure are all located below the second mounting frame 20. The second fixing base 32 is mounted on the first rotating frame 3, and the second fixing base 32 provides a rotating support for the second screw 30. The second driving motor 29 operates to drive the second screw rod 30 to rotate, and the second nut 31 mounted on the second mounting frame 20 moves in the length direction of the second screw rod 30 under the threaded engagement of the second screw rod 30. The second driving motor 29 can be rotated forward and backward, thereby realizing the linear reciprocating motion of the second mounting frame 20. The second drive motor 29 may also be fitted with a second reduction gear 40. In a second embodiment, the second driving device may be a hydraulic device or an electric push rod, where one end of the hydraulic device or the electric push rod is mounted on the first rotating frame 3, and the other end is connected to the second mounting frame 20.
The second rotating structure has various embodiments: in the first embodiment, the second rotating structure includes a second connecting plate 35, a second rotating shaft 34, and a second rotating seat 33; the second rotating seat 33 is installed on the lower surface of the second rotating frame 19, and the second rotating seat 33 includes a third limiting plate and a fourth limiting plate which are oppositely arranged; the second connecting plate 35 is arranged on the first rotating frame 3; the second connecting plate 35 is located between the third limiting plate and the fourth limiting plate; the second rotating shaft 34 passes through the second connecting plate 35 and is rotationally connected with the second connecting plate 35; the two ends of the second rotating shaft 34 are fixedly connected with a third limiting plate and a fourth limiting plate respectively. The second rotating seat 33 and the second connecting plate 35 are connected through a second rotating shaft 34. The second rotating shaft 34 is fixed relative to the third limiting plate and the fourth limiting plate, and the second rotating shaft 34 rotates relative to the second connecting plate 35. In a second embodiment, the second rotating structure may also be a universal cradle head, where the upper end of the universal cradle head is connected to the second rotating frame 19, and the lower end of the universal cradle head is connected to the first rotating frame 3.
In order to realize a smoother rotation of the first turret 3, it is preferable that two first cam groups are provided, and the two first cam groups are respectively provided at both sides of the first screw rod 13 in the length direction; the first linear motion devices are arranged in a plurality, and the first linear motion devices are respectively located on two sides of the first screw rod 13 in the length direction. The first cam groups and the plurality of first linear motion devices respectively arranged on the two sides of the length direction of the first screw rod 13 jointly provide stable support for the first rotating frame 3.
In order to realize the control and calibration of the rotation angles of the first rotating frame 3 and the second rotating frame 19, the device also preferably comprises a first angle sensor 36, a second angle sensor 37 and a controller; the first angle sensor 36 is mounted on a first rotating structure, and the second angle sensor 37 is mounted on a second rotating structure; the controller is arranged on the base 1; the controller is communicatively coupled to a first angle sensor 36, a second angle sensor 37, a first drive, and a second drive, respectively. For example, a first angle sensor 36 may be mounted on the first swivel mount 18 and a second angle sensor 37 may be mounted on the second connection plate 35. The controller controls the first driving device, such as: the rotation speed of the first driving motor 12 is controlled, the linear motion speed of the first mounting frame 2 is further controlled, and finally the control of the rotation angle of the first rotating frame 3 is realized. The first angle sensor 36 detects the angle value of the rotation of the first rotating frame 3 to form a first angle value, and sends the first angle value to the controller to determine whether the first rotating frame 3 rotates to a preset angle. If the first turret 3 is not rotated to a preset angle, the controller continues to send an operating signal to the first drive until the first turret 3 is rotated to a preset angle. The above procedure forms a closed loop control of the rotation angle of the first turret 3, namely: control-detection-calibration. The controller controls the second driving device such as: the rotation speed of the second driving motor 29 is controlled, and then the linear motion speed of the second mounting frame 20 is controlled, so that the control of the rotation angle of the second rotating frame 19 is finally realized. The second angle sensor 37 detects the angle value of rotation of the second rotating frame 19 to form a second angle value, and sends the second angle value to the controller to determine whether the second rotating frame 19 rotates to a preset angle. If the second turret 19 is not rotated to a preset angle, the controller continues to send an operating signal to the second drive until it is rotated to a preset angle. The above procedure forms a closed loop control of the rotation angle of the second turret 19, namely: control-detection-calibration. The controller may control the operations of the first driving device and the second driving device, either in a time-sharing manner or simultaneously. Namely: when the first driving device works, the second driving device can work or not work; when the second driving device works, the first driving device can work or not work.
Preferably, it may further comprise a housing 39, and the first cam group and the first rotating seat 18 are both disposed in the housing 39. The housing 39 protects the first cam set and the first rotary seat 18.
The above is a specific embodiment of the present invention, and it can be seen from the implementation process that the present invention provides a tilt angle testing apparatus with high reliability. The device has a simple structure, the driving device is separated from the wedge-shaped table which bears the impact, and the precision and the durability of the device can be well maintained. The first cam structure is matched with the second cam structure, the third cam structure is matched with the fourth cam structure, the reliability is high, and the failure is not easy to occur. The device can not only realize the rotation of the automobile passenger door around the x axis or around the y axis respectively, but also realize the rotation of the automobile passenger door around the x axis and the y axis simultaneously so as to simulate the position and the test condition of the automobile passenger door under different road conditions. The closed-loop control can be carried out on the rotating angle, and the testing precision is high. And the whole process is automatically operated, so that the manpower and the cost are saved.
Claims (10)
1. The dip angle testing device comprises a base (1); the method is characterized in that: the device also comprises a first driving device, a first rotating frame (3), a first mounting frame (2), a first rotating structure and a first cam group;
a first linear motion device is arranged between the base (1) and the first mounting frame (2); the first driving device is arranged on the base (1) and drives the first mounting frame (2) to do linear reciprocating motion on the base (1);
The first cam group comprises a first cam mechanism and a second cam mechanism;
the first cam mechanism comprises a first wedge-shaped table (4) and a first cam (5); the first wedge-shaped table (4) is arranged on the upper surface of the first mounting frame (2); the first cam (5) is arranged on the first rotating frame (3) through a first mounting seat (6), and the first cam (5) is rotationally connected with the first mounting seat (6);
the second cam mechanism comprises a second wedge-shaped table (7) and a second cam (8); the second wedge-shaped table (7) is arranged on the upper surface of the first mounting frame (2); the second cam (8) is arranged on the first rotating frame (3) through a second mounting seat (9), and the second cam (8) is rotationally connected with the second mounting seat (9);
the first wedge-shaped table (4) and the second wedge-shaped table (7) are vertically arranged on the first mounting frame (2) along the height direction; the slope of the inclined plane of the first wedge-shaped table (4) is opposite to that of the inclined plane of the second wedge-shaped table (7), and the lower end of the inclined plane of the first wedge-shaped table (4) is opposite to that of the inclined plane of the second wedge-shaped table (7);
the inclined plane of the first wedge-shaped table (4) is in rolling fit with the first cam (5), and the movement track of the first cam (5) on the inclined plane of the first wedge-shaped table (4) forms a first rolling track; the inclined surface of the second wedge-shaped table (7) is in rolling fit with a second cam (8), and the movement track of the second cam (8) on the inclined surface of the second wedge-shaped table (7) forms a second rolling track;
The first rotating frame (3) is connected with the base (1) through a first rotating structure; the first rotating structure is provided with a first rotating axis, and the first rotating frame (3) rotates around the first rotating axis relative to the base (1);
the first rolling track and the second rolling track are respectively perpendicular to the first rotation axis;
the first wedge-shaped table (4) and the second wedge-shaped table (7) form a first wedge-shaped table group, and the first rotating structure is positioned at the lateral side of the length direction of the first wedge-shaped table group.
2. The tilt angle testing apparatus of claim 1, wherein: the first linear motion device comprises a first sliding rail (10) and a first sliding block (11);
the first sliding rail (10) is arranged on the upper surface of the base (1), and the first sliding block (11) is arranged on the lower surface of the first mounting frame (2);
the first sliding rail (10) is in sliding fit with the first sliding block (11);
the first driving device is positioned at one end of the first sliding rail (10) in the length direction;
the length of the first wedge-shaped table (4) and the length of the second wedge-shaped table (7) are parallel to the length of the first sliding rail (10) respectively.
3. The tilt angle testing apparatus of claim 2, wherein: the first driving device comprises a first driving motor (12) and a first screw rod structure;
The first driving motor (12) is arranged on the base (1), and the first driving motor (12) is positioned at one end of the first sliding rail (10) in the length direction;
the first screw rod structure comprises a first screw rod (13) and a first nut (14), one end of the first screw rod (13) is connected with a first driving motor (12), and the other end of the first screw rod is rotationally connected with a first fixing seat (15); the first fixing seat (15) is arranged on the base (1);
the first screw rod (13) is arranged in parallel with the first sliding rail (10) along the length direction;
the first nut (14) is arranged on the first mounting frame (2), and the first nut (14) is in threaded connection with the first screw rod (13).
4. The tilt angle testing apparatus of claim 1, wherein: the first rotating structure comprises a first connecting plate (16), a first rotating shaft (17) and a first rotating seat (18);
the first connecting plate (16) is arranged on the lower surface of the first rotating frame (3);
the first rotating seat (18) is arranged on the base (1); the first rotating seat (18) comprises a first limiting plate and a second limiting plate which are oppositely arranged;
the first connecting plate (16) is positioned between the first limiting plate and the second limiting plate;
the first rotating shaft (17) is fixedly arranged on the first connecting plate (16), and two ends of the first rotating shaft (17) are respectively positioned at two sides of the first connecting plate (16);
The first limiting plate and the second limiting plate are respectively connected with the two ends of the first rotating shaft (17) in a rotating mode.
5. The tilt angle testing apparatus of claim 2, wherein: the device also comprises a second driving device, a second rotating frame (19), a second mounting frame (20), a second rotating structure and a second cam group;
the second rotating frame (19), the second mounting frame (20) and the first rotating frame (3) are sequentially arranged from top to bottom;
a second linear motion device is arranged between the second mounting frame (20) and the first rotating frame (3); the second driving device is arranged on the first rotating frame (3) and drives the second mounting frame (20) to do linear reciprocating motion on the first rotating frame (3);
the second cam group comprises a third cam mechanism and a fourth cam mechanism;
the third cam mechanism comprises a third wedge-shaped table (21) and a third cam (22); the third wedge-shaped table (21) is arranged on the upper surface of the second mounting frame (20); the third cam (22) is arranged on the lower surface of the second rotating frame (19) through a third mounting seat (23), and the third cam (22) is rotationally connected with the third mounting seat (23);
the fourth cam mechanism comprises a fourth wedge table (24) and a fourth cam (25); the fourth wedge-shaped table (24) is arranged on the upper surface of the second mounting frame (20); the fourth cam (25) is arranged on the lower surface of the second rotating frame (19) through a fourth mounting seat (26), and the fourth cam (25) is rotationally connected with the fourth mounting seat (26);
The third wedge-shaped table (21) and the fourth wedge-shaped table (24) are vertically arranged on the second mounting frame (20) along the height direction; the slope of the inclined plane of the third wedge-shaped table (21) is opposite to that of the inclined plane of the fourth wedge-shaped table (24), and the lower end of the inclined plane of the third wedge-shaped table (21) is opposite to that of the inclined plane of the fourth wedge-shaped table (24);
the inclined surface of the third wedge-shaped table (21) is in rolling fit with a third cam (22), and the movement track of the third cam (22) on the inclined surface of the third wedge-shaped table (21) forms a third rolling track; the inclined surface of the fourth wedge-shaped table (24) is in rolling fit with a fourth cam (25), and the movement track of the fourth cam (25) on the inclined surface of the fourth wedge-shaped table (24) forms a fourth rolling track;
the second rotating frame (19) is connected with the first rotating frame (3) through a second rotating structure; the second rotating structure is provided with a second rotating axis, and the second rotating frame (19) rotates around the second rotating axis relative to the first rotating frame (3);
the third rolling track and the fourth rolling track are respectively perpendicular to the second rotation axis;
the third wedge-shaped table (21) and the fourth wedge-shaped table (24) form a second wedge-shaped table group, and the second rotating structure is positioned at the lateral side of the length direction of the second wedge-shaped table group;
The movement track of the second mounting frame (20) is perpendicular to the movement track of the first mounting frame (2).
6. The tilt angle testing apparatus of claim 5, wherein: the second linear motion device comprises a second sliding rail (27) and a second sliding block (28);
the second sliding rail (27) is arranged on the first rotating frame (3), and the second sliding block (28) is arranged on the second mounting frame (20);
the second sliding rail (27) is in sliding fit with the second sliding block (28);
the second driving device is positioned at one end of the second sliding rail (27) in the length direction;
the length of the third wedge-shaped table (21) and the length of the fourth wedge-shaped table (24) are respectively parallel to the length of the second sliding rail (27);
the length of the first sliding rail (10) is perpendicular to the length of the second sliding rail (27).
7. The tilt angle testing apparatus of claim 6, wherein: the second driving device comprises a second driving motor (29) and a second screw rod structure;
the second driving motor (29) is arranged on the first rotating frame (3), and the second driving motor (29) is positioned at one end of the second sliding rail (27) in the length direction;
the second screw rod structure comprises a second screw rod (30) and a second nut (31), one end of the second screw rod (30) is connected with a second driving motor (29), and the other end of the second screw rod is rotationally connected with a second fixing seat (32); the second fixing seat (32) is arranged on the first rotating frame (3);
The second screw rod (30) is arranged in parallel with the second sliding rail (27) along the length direction;
the second nut (31) is arranged on the second mounting frame (20), and the second nut (31) is in threaded connection with the second screw rod (30);
the second fixing seat (32), the second driving motor (29) and the second screw rod structure are all positioned below the second mounting frame (20).
8. The tilt angle testing apparatus of claim 5, wherein: the second rotating structure comprises a second connecting plate (35), a second rotating shaft (34) and a second rotating seat (33);
the second rotating seat (33) is arranged on the lower surface of the second rotating frame (19), and the second rotating seat (33) comprises a third limiting plate and a fourth limiting plate which are oppositely arranged;
the second connecting plate (35) is arranged on the first rotating frame (3);
the second connecting plate (35) is positioned between the third limiting plate and the fourth limiting plate;
the second rotating shaft (34) passes through the second connecting plate (35) and is rotationally connected with the second connecting plate (35); two ends of the second rotating shaft (34) are fixedly connected with the third limiting plate and the fourth limiting plate respectively.
9. A tilt angle testing apparatus according to claim 3, wherein: the two first cam groups are respectively arranged at two sides of the length direction of the first screw rod (13);
The first linear motion devices are arranged in a plurality, and the first linear motion devices are respectively located at two sides of the length direction of the first screw rod (13).
10. The tilt angle testing apparatus of claim 5, wherein: the device also comprises a first angle sensor (36), a second angle sensor (37) and a controller;
the first angle sensor (36) is mounted on a first rotating structure, and the second angle sensor (37) is mounted on a second rotating structure; the controller is arranged on the base (1);
the controller is in communication connection with a first angle sensor (36), a second angle sensor (37), a first driving device and a second driving device, respectively.
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