CN211977821U - Detection device - Google Patents

Abstract

The utility model provides a detection device, which comprises a base, first brackets fixed on the left and right ends of the base, two moving assemblies arranged on the two first brackets, a first connecting piece erected on the two moving assemblies, two sets of A first grating ruler, a detection platform, a first detection device and a control device; the two sets of first grating rulers are used to respectively detect the distance that the two moving components drive the first connecting piece to move, and feed the signal back to the control device; the control device according to The signal controls the synchronous driving of the two moving components; the first detection device is connected with the first connecting piece and can move with the first connecting piece under the driving of the moving component, and is used to detect the product to be tested supported on the testing platform. The two moving components and the first connecting piece form a gantry structure, which can support the first detection device better and more stably, and avoid deformation and shaking; the two moving components are driven synchronously, which makes the operation of the first detection device more stable and improves the performance of the first detection device. The detection accuracy of the detection equipment.

Description

Testing Equipment

technical field

The utility model belongs to the technical field of industrial detection, and more particularly relates to a detection device.

Background technique

At present, with the continuous improvement of machining accuracy and efficiency, the requirements for products are also getting higher and higher. Not only need to carry out dimensional inspection of products during the machining process to ensure the internal performance, but also need to check the external dimensions of the products after the machining is completed. Inspections are performed to ensure appearance properties. Therefore, the requirements for detection devices are also getting higher and higher.

There are mainly two existing detection methods, one is to manually use a detection device for detection, and the other is to install the detection device on a manipulator for detection. However, some detection devices are too heavy, especially when detecting large-sized products, it is not only difficult to use by hand; when installed on the robot, the robot is easily deformed due to the large force at the installation place, and the detection moving distance is long, which is prone to shaking. , which seriously affects the detection accuracy.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a detection device to solve the technical problem in the prior art that the detection device is too heavy and affects the detection accuracy.

In order to achieve the above purpose, the technical solution adopted by the present invention is to provide a detection device, including a frame, a first moving device, a detection platform, a first detection device and a control device;

The frame includes a base and first brackets fixed on the left and right ends of the base;

The first moving device includes two moving assemblies respectively arranged on the two first brackets, a first connecting piece erected on the two moving assemblies, and two sets of first grating rulers; the moving assemblies are used for driving the first connector to move;

The first grating scale is connected with the moving assembly in a one-to-one correspondence, and is used to detect the distance that the corresponding moving assembly drives the first connecting piece to move, and feed the signal back to the control device;

The control device is used to receive the signal fed back by the first grating ruler, and control the two moving components to drive synchronously according to the signal;

The detection platform is arranged on the base to support the product to be tested;

The first detection device is connected with the first connector, can move with the first connector, and is used for detecting the product to be tested supported on the detection platform.

Further, the moving assembly includes a lifting mechanism fixed on the first bracket and a first driving member connected to the lifting mechanism;

The lifting mechanism is used to drive the first driving member to move up and down;

The first connecting piece is connected with the first driving piece, and can move back and forth under the driving of the first driving piece;

Each group of the first grating rulers includes a grating ruler A connected with the first driving member and a grating ruler B connected with the lifting mechanism;

The grating ruler A is used to detect the distance that the corresponding first driving member drives the first connecting member to move back and forth, and feed the signal back to the control device; the control device is used to receive the grating ruler A feedback signal, and control the first driving member of the two moving assemblies to drive synchronously according to the signal;

The grating ruler B is used to detect the distance that the corresponding lifting mechanism drives the first connecting piece to rise and fall, and feed the signal back to the control device; the control device is used to receive the feedback from the grating ruler B. signal, and control the lifting mechanism of the two moving assemblies to drive synchronously according to the signal.

Further, the first connecting member includes a second driving member connected with the first driving member and a second grating scale connected with the second driving member;

The first detection device is connected with the second driving member, and can move left and right under the driving of the second driving member;

The second grating scale is used to detect the distance that the second driving member drives the first detection device to move left and right, and feed the signal back to the control device; the control device is used to receive the second grating The feedback signal of the ruler is controlled, and the driving of the first detection device by the second driving member is controlled according to the signal.

Further, the first moving device further includes a first rotating member connected to the second driving member; the first rotating member can move left and right under the driving of the second driving member;

The first detection device is connected with the first rotating member and can rotate under the driving of the first rotating member.

Further, the frame further includes a second bracket fixed on the rear end of the base;

The detection device further includes a second mobile device fixed on the second bracket and a second detection device connected to the second mobile device;

The second detection device is used for detecting the product to be tested supported on the detection platform, and can be moved under the driving of the second moving device.

Further, the second moving device includes two third driving members, two third grating rulers and a second connecting member;

The two third driving parts are respectively fixed on the left and right ends of the second bracket;

The second connecting piece is erected on the two third driving pieces, and can move up and down under the driving of the third driving pieces;

The third grating scale is connected with the third driving member in one-to-one correspondence, and is used to detect the distance that the corresponding third driving member drives the second connecting member to move up and down, and feedback the signal to the control device; the control device is configured to receive the signal fed back by the third grating scale, and control the two third drive members to drive synchronously according to the signal;

The second detection device is connected with the second connecting piece and can move with the second connecting piece.

Further, the second connecting member includes a fourth driving member mounted on the two third driving members and a fourth grating scale connected to the fourth driving member;

The second detection device is connected with the fourth driving member, and can move left and right under the driving of the fourth driving member;

The fourth grating scale is used to detect the distance that the fourth driving member drives the second detection device to move left and right, and feed the signal back to the control device; the control device is used to receive the fourth grating The feedback signal of the ruler is controlled, and the driving of the second detection device by the fourth driving member is controlled according to the signal.

Further, the second moving device further includes a second rotating member connected to the fourth driving member; the second rotating member can move left and right under the driving of the fourth driving member;

The second detection device is connected with the second rotating member and can rotate under the driving of the second rotating member.

Further, it also includes a third moving device arranged on the base; the detection platform is connected with the third moving device and can move under the driving of the third moving device.

Further, the third moving device includes a fifth driving member, a fifth grating ruler, an auxiliary shaft, a sixth driving member and a sixth grating ruler;

The fifth driving member and the auxiliary shaft are fixed on the base at a front and rear interval;

The sixth driving member is erected on the fifth driving member and the auxiliary shaft, and can move left and right under the driving of the fifth driving member;

The detection platform is connected with the sixth driving member, and can move back and forth under the driving of the sixth driving member, and can move left and right with the sixth driving member;

The fifth grating scale is connected with the fifth driving member, and is used to detect the distance that the fifth driving member drives the detection platform to move left and right, and feedback the signal to the control device; the control device uses receiving the signal fed back by the fifth grating ruler, and controlling the driving of the detection platform by the fifth driving member according to the signal;

The sixth grating scale is connected with the sixth driving member, and is used to detect the distance that the sixth driving member drives the detection platform to move back and forth, and feeds the signal back to the control device; the control device uses receiving the signal fed back by the sixth grating ruler, and controlling the driving of the detection platform by the sixth driving member according to the signal.

The beneficial effect of the detection device provided by the present invention is that compared with the prior art, the first moving device includes two moving components and a first connecting piece, and a gantry structure is formed by the moving components and the first connecting piece, and the gantry frame The structure is stable and the strength is high. The first detection device is installed on the first connecting piece, so that the first mobile device can support the first detection device better and more stably, and is not easily deformed by the heavy load of the first detection device, and can also Prevent the first mobile device from shaking when driving the first detection device to move, thereby affecting the detection accuracy; the mobile component is arranged on the first bracket, and the first bracket supports the mobile component to prevent the mobile component from being weighed by the first detection device. The deformation caused by the load effect can also avoid the shaking of the moving component when it moves; the two moving components realize the dual power drive of the first connecting piece, the driving force is large, and the moving power of the first detection device is ensured. Detect the distance that the two moving components drive the first connecting piece to move and feed it back to the control device, and the control device controls the two moving components to synchronously drive the first connecting piece to move according to the signal, so as to ensure the consistency of the dual power drive, and the operation of the first detection device is more stable , the moving distance of the first detection device can be strictly controlled, and the detection accuracy of the detection device can be improved.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only for the present utility model. For some novel embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

1 is a schematic structural diagram of a detection device provided by an embodiment of the present invention;

Fig. 2 is the structural schematic diagram of the support assembly in Fig. 1;

3 is a schematic structural diagram of a second detection device and a second moving device in FIG. 1;

FIG. 4 is a schematic structural diagram of the detection platform and the third mobile device in FIG. 1 .

Among them, each reference sign in the figure:

1. Frame; 11. Base; 12. First bracket; 13. Second bracket;

2. The first moving device; 21. The moving assembly; 211, the first driving member; 212, the lifting mechanism;

213, guide rail; 214, sliding piece;

22. The second driving member; 23. The first rotating member;

3. Testing platform; 4. First testing device; 5. Second testing device;

6. The second moving device; 61, the third driving member; 62, the fourth driving member; 63, the second rotating member;

7. The third moving device; 71. The fifth driving member; 72. The auxiliary shaft; 73. The sixth driving member;

8. Supports.

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not intended to limit the present invention.

It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

It is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "bottom", "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that A device or element must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first", "second" may expressly or implicitly include one or more of that feature. In the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

Please refer to FIG. 1 together, and now the detection equipment provided by the present invention will be described. The detection device includes a frame 1, a first mobile device 2, a detection platform 3, a first detection device 4 and a control device (not shown in the figure);

The frame 1 includes a base 11 and first brackets 12 fixed on the left and right ends of the base 11;

The first moving device 2 includes two moving assemblies 21 respectively disposed on the two first brackets 12, a first connecting member erected on the two moving assemblies 21, and two sets of first grating rulers (not shown in the figure); The moving component 21 is used to drive the first connecting piece to move;

The first grating scale is connected with the moving assembly 21 in one-to-one correspondence, and is used to detect the distance that the corresponding moving assembly 21 drives the first connecting piece to move, and feedback the signal to the control device;

The control device is used to receive the signal fed back by the first grating ruler, and control the two moving assemblies 21 to drive synchronously according to the signal;

The detection platform 3 is set on the base 11 for supporting the product to be tested;

The first detection device 4 is connected with the first connector, can move with the first connector, and is used to detect the product to be tested supported on the detection platform 3 .

Compared with the prior art, in the detection equipment provided by the present invention, the first moving device 2 includes two moving components 21 and a first connecting piece, and a gantry structure is formed by the moving components 21 and the first connecting piece. The gantry structure Stable and high strength, the first detection device 4 is installed on the first connector, so that the first mobile device 2 can support the first detection device 4 better and more stably, and is not easily deformed by the heavy load of the first detection device 4 , it can also prevent the first mobile device 2 to drive the first detection device 4 to move, which will affect the detection accuracy; The movable assembly 21 is deformed under the influence of the heavy load of the first detection device 4, which can also avoid the shaking of the movable assembly 21 when it moves; the two movable assemblies 21 realize dual power driving of the first connecting piece, and the driving force is large to ensure the first detection device. 4, at the same time, the two sets of first grating scales respectively detect the distance that the two moving assemblies 21 drive the first connecting piece to move and feed it back to the control device, and the control device controls the two moving assemblies 21 to synchronously drive the first connecting piece to move according to the signal. , to ensure the consistency of the dual power drive, the operation of the first detection device 4 is more stable, the moving distance of the first detection device 4 can be strictly controlled, and the detection accuracy of the detection equipment can be improved.

Preferably, the frame 1 is set as a marble frame; the marble support has good stability, high hardness, and is not easily deformed, and can also avoid affecting the stability of other structures when the first moving device 2 moves, thereby improving detection accuracy.

Specifically, the detection device further includes a support member 8 , and the base 11 is fixed on the support member 8 , which makes the overall installation of the detection device more stable and reduces the vibration of the base 11 .

Further, please refer to FIG. 1 and FIG. 2 together. As a specific embodiment of the detection device provided by the present invention, the moving assembly 21 includes a lifting mechanism 212 fixed on the first bracket 12 and a lifting mechanism 212 connected to the lifting mechanism 212. the first driving member 211;

The lifting mechanism 212 is used to drive the first driving member 211 to move up and down;

The first connecting piece is connected with the first driving piece 211, and can move back and forth under the driving of the first driving piece 211;

Each group of first grating scales includes grating scale A connected with the first driving member 211 and grating scale B connected with the lifting mechanism;

The grating ruler A is used to detect the distance that the corresponding first driving member 211 drives the first connecting member to move back and forth, and feed the signal back to the control device; the control device is used to receive the signal fed back by the grating ruler A, and control the two The first driving member 211 of the moving assembly 21 is driven synchronously;

The grating ruler B is used to detect the distance that the corresponding lifting mechanism 212 drives the first connecting piece to rise and fall, and feed back the signal to the control device; the control device is used to receive the signal fed back by the grating ruler B, and control the two moving assemblies 21 according to the signal. The lifting mechanism 212 is driven synchronously; the first moving device 2 can drive the first detecting device 4 to move in the front-rear and up-down directions, and positioning the product at one time can detect the product size from two directions, reduce the measurement error accumulated by the moving product, and improve the detection precision.

Specifically, the moving assembly 21 further includes two guide rails 213 fixed on the front and rear ends of the first bracket 12 respectively, and a sliding member 214 slidably arranged on the guide rails 213;

The first driving member 211 is fixed on the sliding member 214; the sliding member 214 is connected with the lifting mechanism 212, and can move up and down under the driving of the lifting mechanism 212; the two guide rails 213 and the sliding member 214 form a gantry structure, which can be more stable. The first driving member 211 is supported to avoid shaking when the first driving member 211 rises and falls, the first driving member 211 rises and falls more smoothly, the first detection device 4 moves more smoothly with the first driving member 211, and the detection accuracy of the detection equipment is improved.

Preferably, the first driving member 211 is set as a linear module, so that the movement of the first detection device 4 is more stable, the positioning accuracy is high, the front and rear movement of the first detection device 4 can be better controlled, and the detection accuracy is improved.

Specifically, the lifting mechanism 212 includes a ball screw and a third servo motor connected to the ball screw; the ball screw is connected to the slider 214 , the third servo motor drives the ball screw to move, and the ball screw drives the slider 214 to move up and down , thereby driving the first detection device 4 to move up and down; the ball screw has high transmission efficiency, small friction loss and high movement accuracy.

Further, please refer to FIG. 1 , as a specific embodiment of the detection device provided by the present invention, the first connecting member includes a second driving member 22 connected with the first driving member 211 and a second driving member 22 connected with the second driving member 22 . second grating scale (not shown in the figure);

The first detection device 4 is connected with the second driving member 22, and can move left and right under the driving of the second driving member 22;

The second grating scale is used to detect the distance that the second driving member 22 drives the first detection device 4 to move left and right, and feed back the signal to the control device; the control device is used to receive the signal fed back by the second grating scale, and control according to the signal The second driving member 22 drives the first detection device 4; the first detection device 4 can move in the front-rear, up-down and left-right directions, increasing the moving direction and range of the first detection device 4, so that the product can be detected once the product is fixed. Three-dimensional size, avoid accumulating measurement errors of multiple moving products, improve detection accuracy, and the control device can more accurately control the corresponding drive structure (first drive component, lifting mechanism or second driving component) to drive the first detection device 4 to move to cooperate with the detection, improve the accuracy of the first detection device 4 moving in multiple directions, and improve the flexibility of the detection equipment.

Preferably, the second driving member 22 is set as a linear module, so that the movement of the first detection device 4 is more stable, the positioning accuracy is high, the left and right movement of the first detection device 4 can be better controlled, and the detection accuracy is improved.

Further, please refer to FIG. 1 , as a specific embodiment of the detection device provided by the present invention, the first moving device 2 further includes a first rotating member 23 connected to the second driving member 22 ; the first rotating member 23 can Move left and right under the driving of the second driving member 22;

The first detection device 4 is connected with the first rotating member 23, and can rotate under the driving of the first rotating member 23; the flexibility of the first detection device 4 is increased, the detection accuracy is higher, and it is also convenient to detect various products. physical dimension.

Specifically, the first rotating member 23 is a servo motor, which has a simple structure and is convenient for installation and control.

Further, please refer to FIG. 1 and FIG. 3 together, as a specific embodiment of the detection device provided by the present invention, the frame 1 further includes a second bracket 13 fixed on the rear end of the base 11;

The detection device further includes a second mobile device 6 fixed on the second bracket 13 and a second detection device 5 connected to the second mobile device 6;

The second detection device 5 is used to detect the product to be tested supported on the detection platform 3, and can be moved under the driving of the second moving device 6; the second moving device 6 is arranged on the second bracket 13, and the second bracket 13 The second mobile device 6 plays a supporting role, so that the second mobile device 6 can support the second detection device 5 better and more stably, avoid the deformation of the second mobile device 6 due to the heavy load of the second detection device 5, and also can Avoid shaking when the second mobile device 6 moves; Improve the stability of the movement of the second mobile device 6; Re-adjust the position of the product to improve the detection efficiency and detection accuracy.

Further, please refer to FIG. 3, as a specific embodiment of the detection device provided by the present invention, the second moving device 6 includes two third driving members 61, two third grating rulers (not shown in the figure) ) and the second connector;

The two third driving members 61 are respectively fixed on the left and right ends of the second bracket 13;

The second connecting member is mounted on the two third driving members 61 and can move up and down under the driving of the third driving members 61;

The third grating scale is connected to the third driving member 61 in a one-to-one correspondence, and is used to detect the distance that the corresponding third driving member 61 drives the second connecting member to move up and down, and feedback the signal to the control device; the control device is used to receive the first The signal fed back by the three grating rulers, and control the two third driving members 61 to drive synchronously according to the signal;

The second detection device 5 is connected with the second connecting piece and can move with the second connecting piece. The two third driving members 61 and the second connecting member form a gantry structure, which is stable in structure and high in strength. The second detecting device 5 is installed on the second connecting member, so that the second moving device 6 can support the first moving device 6 in a better and more stable manner. The second detection device 5 is not easily deformed by the heavy load of the second detection device 5, and can also prevent the second moving device 6 from shaking when moving, thereby affecting the detection accuracy; The connecting piece has a large driving force to ensure the moving power of the second detection device 5; at the same time, the distance that the two third driving pieces 61 drive the second connecting piece to move up and down is respectively detected by the two third grating rulers and fed back to the control system. This signal controls the two third driving members 61 to synchronously drive the second connecting member to move, to ensure the consistency of the dual power drive, the operation of the second detection device 5 is more stable, the movement distance of the second detection device 5 can be strictly controlled, and the detection equipment is improved. Detection accuracy.

Specifically, the third driving member 61 is set as a linear module, so that the movement of the second detection device 5 is more stable, the positioning accuracy is high, the up and down movement of the second detection device 5 can be better controlled, and the detection accuracy is improved.

Further, please refer to FIG. 3 , as a specific embodiment of the detection device provided by the present invention, the second connecting member includes a fourth driving member 62 erected on the two third driving members 61 and a fourth driving member connected to the fourth driving member 62's fourth grating scale (not shown in the figure);

The second detection device 5 is connected to the fourth driving member 62, and can move left and right under the driving of the fourth driving member 62;

The fourth grating scale is used to detect the distance that the fourth driving member 62 drives the second detection device 5 to move left and right, and feed back the signal to the control device; the control device is used to receive the signal fed back by the fourth grating scale, and control according to the signal The fourth driving member 62 drives the second detection device 5; the second detection device 5 can move in the up-down and left-right directions, which increases the detection range of the second detection device 5, reduces the measurement error accumulated by the moving product, and improves the detection efficiency and efficiency. Detection accuracy.

Specifically, the fourth driving member 62 is set as a linear module, so that the movement of the second detection device 5 is more stable, the positioning accuracy is high, the left and right movement of the second detection device 5 can be better controlled, and the detection accuracy is improved.

Further, please refer to FIG. 3, as a specific embodiment of the detection device provided by the present invention, the second moving device 6 further includes a second rotating member 63 connected to the fourth driving member 62; the second rotating member 63 can Move left and right under the driving of the fourth driving member 62;

The second detection device 5 is connected with the second rotating member 63, and can rotate under the driving of the second rotating member 63; the flexibility of the second detection device 5 is increased, the detection accuracy is higher, and it is also convenient to detect various products. physical dimension.

Specifically, the second rotating member 63 is a servo motor, which has a simple structure and is convenient for installation and control.

Further, please refer to FIG. 1 and FIG. 4 together, as a specific embodiment of the detection device provided by the present invention, it also includes a third mobile device 7 arranged on the base 11 ; the detection platform 3 and the third mobile device 7 It is connected and can move under the driving of the third moving device 7; the detection platform 3 moves with the first detection device 4, which is more convenient to detect products, improves the detection efficiency, and is more suitable for the detection of large-sized products.

Further, please refer to FIG. 4 , as a specific embodiment of the detection device provided by the present invention, the third moving device 7 includes a fifth driving member 71 , a fifth grating ruler (not shown in the figure), an auxiliary shaft 72. The sixth driving member 73 and the sixth grating scale (not shown in the figure);

The fifth driving member 71 and the auxiliary shaft 72 are fixed on the base 11 at intervals in the front and rear;

The sixth driving member 73 is mounted on the fifth driving member 71 and the auxiliary shaft 72, and can move left and right under the driving of the fifth driving member 71;

The detection platform 3 is connected with the sixth driving member 73, and can move forward and backward under the driving of the sixth driving member 73, and can move left and right with the sixth driving member 73;

The fifth grating scale is connected with the fifth driving member 71 for detecting the distance that the fifth driving member 71 drives the detection platform 3 to move left and right, and feeds the signal back to the control device; the control device is used for receiving the signal fed back by the fifth grating scale , and control the drive of the fifth drive member 71 to the detection platform 3 according to the signal;

The sixth grating scale is connected with the sixth driving member 73 for detecting the distance that the sixth driving member 73 drives the detection platform 3 to move back and forth, and feeds the signal back to the control device; the control device is used for receiving the signal fed back by the sixth grating scale , and control the driving of the sixth driving member 73 to the detection platform 3 according to the signal; the detection platform 3 can move in the front and rear and left and right directions, and can better cooperate with the first detection device 4 and the second detection device 5 to detect the product to be tested , to improve the detection accuracy, and it is also more suitable for detecting large-sized products; the control device can more accurately control the corresponding driving part (the fifth driving part or the sixth driving part) according to the measurement signal of the grating ruler (the fifth grating ruler or the sixth grating ruler). The driving member) drives the detection platform 3 to move to cooperate with the detection and improve the flexibility of the detection equipment.

Specifically, the fifth driving member 71 is set as a linear module, so that the movement of the detection platform 3 is more stable, the positioning accuracy is high, the left and right movement of the detection platform 3 can be better controlled, and the detection accuracy is improved.

Specifically, the sixth driving member 73 is set as a linear module, so that the movement of the detection platform 3 is more stable, the positioning accuracy is high, the forward and backward movement of the detection platform 3 can be better controlled, and the detection accuracy is improved.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection of the utility model.

Claims (10)

1. detection equipment, is characterized in that: comprises frame, the first mobile device, the detection platform, the first detection device and the control device; The frame includes a base and first brackets fixed on the left and right ends of the base; The first moving device includes two moving assemblies respectively arranged on the two first brackets, a first connecting piece erected on the two moving assemblies, and two sets of first grating rulers; the moving assemblies are used for driving the first connector to move; The first grating scale is connected with the moving assembly in a one-to-one correspondence, and is used to detect the distance that the corresponding moving assembly drives the first connecting piece to move, and feed the signal back to the control device; The control device is used to receive the signal fed back by the first grating ruler, and control the two moving components to drive synchronously according to the signal; The detection platform is arranged on the base to support the product to be tested; The first detection device is connected with the first connector, can move with the first connector, and is used for detecting the product to be tested supported on the detection platform. 2 . The detection device according to claim 1 , wherein the moving assembly comprises a lifting mechanism fixed on the first bracket and a first driving member connected to the lifting mechanism; 2 . The lifting mechanism is used to drive the first driving member to move up and down; The first connecting piece is connected with the first driving piece, and can move back and forth under the driving of the first driving piece; Each group of the first grating rulers includes a grating ruler A connected with the first driving member and a grating ruler B connected with the lifting mechanism; The grating ruler A is used to detect the distance that the corresponding first driving member drives the first connecting member to move back and forth, and feed the signal back to the control device; the control device is used to receive the grating ruler A feedback signal, and control the first driving member of the two moving assemblies to drive synchronously according to the signal; The grating ruler B is used to detect the distance that the corresponding lifting mechanism drives the first connecting piece to rise and fall, and feed the signal back to the control device; the control device is used to receive the feedback from the grating ruler B. signal, and control the lifting mechanism of the two moving assemblies to drive synchronously according to the signal. 3. The detection device according to claim 2, wherein the first connecting member comprises a second driving member connected with the first driving member and a second grating scale connected with the second driving member ; The first detection device is connected with the second driving member, and can move left and right under the driving of the second driving member; The second grating scale is used to detect the distance that the second driving member drives the first detection device to move left and right, and feed the signal back to the control device; the control device is used to receive the second grating The feedback signal of the ruler is controlled, and the driving of the first detection device by the second driving member is controlled according to the signal. 4. The detection device according to claim 3, wherein the first moving device further comprises a first rotating member connected to the second driving member; the first rotating member can Driven by the driving part, it moves left and right; The first detection device is connected with the first rotating member and can rotate under the driving of the first rotating member. 5. The detection device according to claim 1, wherein the frame further comprises a second bracket fixed on the rear end of the base; The detection device further includes a second mobile device fixed on the second bracket and a second detection device connected to the second mobile device; The second detection device is used for detecting the product to be tested supported on the detection platform, and can be moved under the driving of the second moving device. 6. The detection device according to claim 5, wherein the second moving device comprises two third driving members, two third grating rulers and a second connecting member; The two third driving parts are respectively fixed on the left and right ends of the second bracket; The second connecting piece is erected on the two third driving pieces, and can move up and down under the driving of the third driving pieces; The third grating scale is connected with the third driving member in one-to-one correspondence, and is used to detect the distance that the corresponding third driving member drives the second connecting member to move up and down, and feedback the signal to the control device; the control device is configured to receive the signal fed back by the third grating scale, and control the two third drive members to drive synchronously according to the signal; The second detection device is connected with the second connecting piece and can move with the second connecting piece. 7 . The detection device according to claim 6 , wherein the second connecting member comprises a fourth driving member mounted on the two third driving members and a fourth driving member connected to the fourth driving member. 8 . grating ruler; The second detection device is connected with the fourth driving member, and can move left and right under the driving of the fourth driving member; The fourth grating scale is used to detect the distance that the fourth driving member drives the second detection device to move left and right, and feed the signal back to the control device; the control device is used to receive the fourth grating The feedback signal of the ruler is controlled, and the driving of the second detection device by the fourth driving member is controlled according to the signal. 8. The detection device according to claim 7, wherein the second moving device further comprises a second rotating member connected to the fourth driving member; Driven by the driving part, it moves left and right; The second detection device is connected with the second rotating member and can rotate under the driving of the second rotating member. 9 . The detection device according to claim 1 , further comprising: a third mobile device arranged on the base; the detection platform is connected to the third mobile device and can move on the third mobile device. 10 . The device is driven to move. 10. The detection device according to claim 9, wherein the third moving device comprises a fifth driving member, a fifth grating ruler, an auxiliary shaft, a sixth driving member and a sixth grating ruler; The fifth driving member and the auxiliary shaft are fixed on the base at a front and rear interval; The sixth driving member is erected on the fifth driving member and the auxiliary shaft, and can move left and right under the driving of the fifth driving member; The detection platform is connected with the sixth driving member, and can move back and forth under the driving of the sixth driving member, and can move left and right with the sixth driving member; The fifth grating scale is connected with the fifth driving member, and is used to detect the distance that the fifth driving member drives the detection platform to move left and right, and feedback the signal to the control device; the control device uses receiving the signal fed back by the fifth grating ruler, and controlling the driving of the detection platform by the fifth driving member according to the signal; The sixth grating scale is connected with the sixth driving member, and is used to detect the distance that the sixth driving member drives the detection platform to move back and forth, and feeds the signal back to the control device; the control device uses receiving the signal fed back by the sixth grating ruler, and controlling the driving of the detection platform by the sixth driving member according to the signal.

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