CN202693480U - Three-dimensional movable observation platform with four degrees of freedom - Google Patents

Abstract

The utility model provides a three-dimensional movable observation platform with four degrees of freedom. The three-dimensional movable observation platform comprises a base and a turntable arranged in the middle of the base. Supports are fixed onto four corners of the base, a frame is mounted on the supports and comprises four trusses, the turntable is connected with a motor, ball screw mechanisms are arranged at lower ends of optional two opposite trusses of the frame, each ball screw mechanism comprises a screw and a nut, each screw is arranged between the corresponding two adjacent supports, and each nut is positioned on the corresponding screw. Compared with the prior art, the three-dimensional movable observation platform has the advantages that a camera can move three-dimensionally, a camera device can rotate circularly, the visual field of the camera for acquiring image data is enlarged, and starting, stopping and running of the motor are controlled by a computer unit, so that displacement and rotation in each dimension and at each angle are accurate, acquired data are comprehensive and accurate, work efficiency is improved, functions of the three-dimensional movable observation platform are increased, and the three-dimensional movable observation platform can be applied to fields of scientific research and product display.

Description

A three-dimensional moving four-degree-of-freedom observation platform

technical field

The utility model relates to a mobile observation platform, in particular to a three-dimensional movable four-degree-of-freedom observation platform.

Background technique

Gemstones have always been loved by people. People are generally used to refer to jewelry, handicrafts or other collections made of natural materials other than gold, silver and other metals, such as minerals, rocks, organisms, etc., with certain value, as jewelry. Jewelry generally includes: natural jewelry jade and artificial gemstones, natural jewelry jade includes natural gemstones, natural jade, natural organic gemstones, artificial gemstones include artificial gemstones, reconstructed gemstones, composite gemstones, and synthetic gemstones. With the development of economy and science, jewelry processing and identification technology is becoming more and more mature. Jewelry identification requires a large number of instruments. Image acquisition is an indispensable step in jewelry identification. Traditional image data acquisition is divided into two types: One method is to use a home digital camera to shoot directly under the indoor normal lighting mode or the photographer chooses the light source, and the other method is to use a digital camera to shoot in a small photography box. The traditional jewelry observation platform, its mobile mechanism can only make displacements in the X and Y axis directions, and cannot perform three-dimensional observation and image collection of jewelry, and the operation is not precise enough to realize automatic operation, which affects the accuracy of collected data , reducing work efficiency.

Contents of the invention

In order to solve the deficiencies of the prior art, the utility model provides a four-degree-of-freedom observation platform that can move in a three-dimensional direction and rotate around a vertical axis.

The technical scheme that the utility model solves its technical problem adopts is:

A three-dimensional mobile four-degree-of-freedom observation platform includes a base and a rotating platform arranged in the middle of the base, brackets are fixed on the four corners of the base, a frame is installed on the bracket, and the frame includes four frames. The rotary table is connected with a motor, and the lower ends of any two opposite frames in the frame are provided with a ball screw mechanism. The ball screw mechanism includes a screw and a nut. The screw is arranged between two adjacent supports, and the nut is located on the screw. At least two horizontally parallel guide rods are connected between the two nuts, and a slide seat is arranged on the guide rod, and the slide seat includes a horizontal screw nut block and a vertical screw nut block fixedly connected thereto, and the horizontal screw nut block In cooperation with the guide rod, a lifting mechanism is installed on the top of the vertical screw nut block. The lifting mechanism includes a lifting motor and a lifting rod. The lifting motor is installed on the top of the lifting rod. The lifting rod cooperates with the vertical screw nut block, and the bottom of the lifting rod moves A camera device is provided, and the camera device is connected with a rotating motor capable of rotating around the central axis of the lifting rod. Both the screw rod and the guide rod are connected with motors.

The upper end and the lower end of the nut are symmetrically provided with two screw rods matched with it, and the two screw rods are vertically parallel.

The screw rod is connected with a stepping motor, the guide rod is connected with a linear motor, the lifting motor is a stepping motor, and both the stepping motor and the linear motor are connected with a computer control unit.

Compared with the prior art, the utility model has the beneficial effects that: the utility model changes the moving structure of the observation platform, adds a lifting mechanism in the direction of the Z axis, and adopts the way of pushing the shaft to realize three-dimensional movement, and can be moved by the motor The automatic control saves manpower, and the movement is more precise. Compared with the existing technology, the structure is simpler, easy to control, time-saving and efficient, and the accuracy of the experimental data is improved.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present utility model;

FIG. 2 is a structural schematic view of another angle of FIG. 1 .

In the drawings: 1-base, 2-rotary table, 3-bracket, 4-frame, 5-screw, 6-nut, 7-guide rod, 8-sliding seat, 9-horizontal screw nut block, 10-vertical Screw nut block, 11-lift mechanism, 12-lift motor, 13-lift rod.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

A three-dimensional mobile four-degree-of-freedom observation platform, referring to Figures 1 to 2, includes a base 1 and a rotating table 2 arranged in the middle of the base 1, four corners of the base 1 are fixed with a bracket 3, the bracket Frame 4 is installed on 3, and frame 4 includes four frames, and rotary table 2 is connected with motor, and the lower end of any two relative frames in described frame 4 is all provided with ball screw mechanism, and ball screw mechanism includes screw rod 5 and nut 6. The screw rod 5 is arranged between two adjacent brackets 3, the nut 6 is located on the screw rod 5, and at least two horizontally parallel guide rods 7 are connected between the two nuts 6, and the guide rod 7 is provided with a sliding seat 8, The slide 8 includes a horizontal screw nut block 9 and a vertical screw nut block 10 fixedly connected thereto. The horizontal screw nut block 9 cooperates with the guide rod 7. A lifting mechanism 11 is installed on the top of the vertical screw nut block 10. Lifting mechanism 11 includes lifting motor 12 and lifting rod 13, and lifting motor 12 is installed on the top of lifting rod 13, and lifting rod 13 cooperates with vertical screw nut block 10, and the bottom end of lifting rod 13 is movable to be provided with camera device, and camera device connects There is a rotating motor, which can rotate around the central axis of the elevating rod 13. Both the screw rod 5 and the guide rod 7 are connected with a motor.

The upper end and the lower end of the nut 6 are symmetrically provided with two screw rods 5 matched therewith, and the two screw rods 5 are vertically parallel.

The screw rod 5 is connected with a stepping motor, the guide rod 7 is connected with a linear motor, the lifting motor 12 is a stepping motor, and both the stepping motor and the linear motor are connected with the computer control unit.

In this embodiment, the turntable 2 is used to carry the specimen. The turntable 2 is controlled by a motor and can rotate around its mandrel. The stepping motor can drive the rotation of the screw 5 and the guide rod 7, thereby realizing the nut 6 and the sliding seat. 8 moves in the X and Y directions respectively, and adjusting the speed of the stepper motor can control the feed rate of the screw rod 6 and the guide rod 7, and then control the horizontal displacement of the camera device arranged at the bottom end of the lifting rod 13, and the lifting rod 13 It is also connected with a stepping motor, which can fully realize the linear displacement of the camera device in the Z-axis direction. Through the structural design of the three-dimensional direction of the observation platform, and a rotating motor connected to the camera device, the rotation of the camera device can be controlled. Dimensions, thus realizing three-dimensional movement and one-dimensional rotation, further increasing the field of view of the camera, and each motor is also controlled by the computer control unit, truly achieving human-computer interaction.

Compared with the traditional technology, the utility model realizes the three-dimensional movement of the observation camera, and can rotate the camera device 360°, increases the field of view of the camera to collect image data, and controls the start-stop and operation of the motor through the computer unit, The displacement and rotation of various dimensions and angles are more accurate, the collected data is more comprehensive and accurate, the work efficiency is improved, and the application of the utility model is also increased, which can be used in the fields of scientific research and commodity display.

Claims (3)

1. three-dimensional mobile four-degree-of-freedom observation platform, comprise base and be arranged on universal stage on the base medium position, be fixed with support on four corners of described base, framework is installed on the support, framework includes four frameworks, universal stage is connected with motor, it is characterized in that: any two relative framework lower ends are provided with ball screw framework in the described framework, ball screw framework comprises screw rod and nut, screw rod is arranged between the two adjacent supports, nut is positioned on the screw rod, be connected with the guide rod of at least two horizontal parallel between relative two nuts, be provided with slide on the guide rod, the down-feed screw nut block that described slide includes the horizontal lead screw nut block and is fixedly connected with it, the horizontal lead screw nut block cooperates with guide rod, down-feed screw nut block top is equipped with elevating mechanism, elevating mechanism includes lifting motor and elevating lever, lifting motor is installed in the elevating lever top, elevating lever matches with the down-feed screw nut block, the elevating lever bottom is movably set with camera head, camera head is connected with electric rotating machine, can be around the central axis rotation of elevating lever, described screw rod, guide rod all is connected with motor.

2. three-dimensional mobile four-degree-of-freedom observation platform according to claim 1, it is characterized in that: the top and bottom of described nut are symmetrically arranged with two screw rods that cooperate with it, and the two screw rods in the vertical direction is parallel.

3. three-dimensional mobile four-degree-of-freedom observation platform according to claim 1, it is characterized in that: described screw rod is connecting stepper motor, guide rod is connecting linear electric motors, and lifting motor is stepper motor, and stepper motor all is connected with computer control unit with linear electric motors.

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