Laser measurement equipment for size of hinge reinforcer and use method

Abstract

The invention relates to the technical field of size measurement of hinge reinforcers, in particular to laser measurement equipment for the size of a hinge reinforcer and a use method, and the laser measurement equipment comprises a base, a controller, a measurement table, a transport roller and a power box, the measuring table is movably arranged on the base, the measuring table and the base are connected through a plurality of symmetrically-arranged telescopic columns, the controller is arranged on the measuring table, the conveying rollers are symmetrically and movably arranged on the measuring table, and the control box is arranged on the measuring table and connected with the conveying rollers. The laser measuring equipment further comprises a lifting assembly and a measuring assembly, the lifting assembly is arranged between the base and the measuring table, and the measuring assembly is arranged on the measuring table. The whole device is high in automation degree, and compared with traditional laser measurement equipment, the device can guarantee the transportation stability of the hinge reinforcer in the process of guaranteeing the measurement precision.

Description

Technical Field

[0001] The present invention relates to the technical field of hinge reinforcement size measurement, and more specifically, it is a laser measurement device and method for the size of hinge reinforcements. Background Technique

[0002] The function of the hinge reinforcement plate on the inner panel of the car front hood is to assemble the front hood hinge to play a role in bearing weight and adjusting the gap between the front hood and the fender. After the hinge reinforcement plate on the inner panel of the car front hood is processed, it needs to be inspected to ensure its ex-factory quality.

[0003] In order to improve the measurement accuracy of hinge reinforcements, a laser measurement device is usually used to measure the size of hinge reinforcements. However, the existing laser measurement device has a simple structure. During the transportation of hinge reinforcements, it requires manual reset and stabilization by staff, resulting in errors in the laser measurement process and affecting the final measurement data. Summary of the Invention

[0004] The purpose of the present invention is to provide a laser measurement device for the size of hinge reinforcements to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A laser measurement device for the size of hinge reinforcements includes a base, a controller, a measurement table, transport rollers, and a power box. A number of moving wheels are symmetrically arranged on the base. The measurement table is movably arranged on the base and is connected to the base by a number of symmetrically arranged telescopic columns. The controller is arranged on the measurement table. The number of transport rollers is several and they are symmetrically and movably arranged on the measurement table. The control box is arranged on the measurement table and is connected to the transport rollers. The laser measurement device further includes a lifting component and a measurement component. The lifting component is arranged between the base and the measurement table and is used to adjust the height of the measurement table and control the base to be fixed on the ground. The measurement component is arranged on the measurement table and is used to measure the size of the hinge reinforcement;

[0007] The measurement component includes a measurement execution structure, a limiting structure, and a transmission structure. The limiting structure is arranged on the measurement table and is used to limit the hinge reinforcement. The measurement execution structure is arranged on the measurement table and is used to measure the size of the hinge reinforcement. The transmission structure is arranged on the measurement table and connects the measurement execution structure and the limiting structure. When the limiting structure works, it controls the measurement execution structure to work synchronously through the transmission structure.

[0008] A further technical solution of the present application: The measurement execution structure includes a second reciprocating lead screw, a measurement seat, a laser measurement head, a transmission disc and a belt. The number of the second reciprocating lead screws is two, and both are movably arranged on the measurement table. The two second reciprocating lead screws are arranged on both sides of the transport roller. The number of the measurement seats is the same as that of the second reciprocating lead screws. The second reciprocating lead screw slidably penetrates through the measurement seat and is in threaded cooperation with each other. A plurality of laser measurement heads are equidistantly arranged on the opposite surfaces of the measurement seat. One end of the second reciprocating lead screw is provided with a transmission disc. The transmission discs are connected by a belt. The other end of the second reciprocating lead screw is connected to the transmission structure.

[0009] A further technical solution of the present application: The number of the limiting structures is several groups and they are symmetrically arranged on the measurement table. Each group of the limiting structures includes a buffer tube, a roller seat, a limiting roller, a sliding rod and an elastic member. The buffer tube is arranged on the measurement table. The sliding rod is movably arranged on the buffer tube and is connected by the elastic member. The roller seat is arranged at one end of the sliding rod. The limiting roller is movably arranged on the roller seat. One group of the limiting structures is connected to the second reciprocating lead screw through the transmission structure.

[0010] A further technical solution of the present application: The transmission structure includes a mounting slide plate, a cylinder, a driving unit and an inflation unit. The mounting slide plate is movably arranged on the measurement table and is elastically connected. The driving unit is arranged on the measurement table. The cylinder is arranged on the measurement table and is connected to the driving unit. The cylinder controls the driving unit to work by telescoping. The inflation unit is arranged and connected to the second reciprocating lead screw. The inflation unit is arranged on the mounting slide plate and is connected to the limiting roller. When the limiting roller moves, the cylinder is controlled to telescope through the inflation unit.

[0011] A further technical solution of the present application: The driving unit includes a driving frame, several teeth and a half gear. The half gear is movably arranged on the measurement table. The driving frame is movably arranged on the measurement table. The half gear is arranged inside the driving frame. The driving frame is connected to the movable end of the cylinder. Several teeth are equidistantly and symmetrically arranged on the inner wall of the driving frame. The teeth are meshed with the half gear.

[0012] A further technical solution of the present application: The inflation unit includes an inflation pipe, a piston, a first reciprocating lead screw and a clamping shaft. The inflation pipe is arranged on the mounting slide plate. The inflation pipe is communicated with the cylinder. The piston is movably arranged in the inflation pipe and is elastically connected. The first reciprocating lead screw is movably arranged in the inflation pipe and is in threaded cooperation. One end of the clamping shaft is arranged on the limiting roller. A clamping groove which is slidably matched with the other end of the clamping shaft is formed in the first reciprocating lead screw.

[0013] The present application has a further technical solution: the lifting assembly includes a moving seat, a pushing arm, a positioning structure and an adsorption structure. The moving seats are in a group and are symmetrically arranged relative to the base. The base is formed with a guide groove that slides with the moving seat. The moving seat is movably connected to the measuring platform through the pushing arm. The positioning structure is arranged on the base and connected to the moving seat for adjusting the distance between the moving seats. The adsorption structure is arranged on the base and connected to the positioning structure. When the positioning structure is working, it controls the adsorption structure to work and fixes the base to the ground.

[0014] A further technical solution of the present application is as follows: the positioning structure includes a positioning rod, an inclined surface, rollers and an electric telescopic rod, the positioning rod being movably arranged on the base, rollers being movably arranged on both sides of the positioning rod, the inclined surface being arranged on the movable seat and slidingly cooperating with the rollers, the electric telescopic rod being arranged on the base and its movable end being connected to the positioning rod.

[0015] A further technical solution of the present application is as follows: the adsorption structure includes a suction cup, a hollow tube and a movable plug rod, the suction cups are in multiple numbers and are symmetrically arranged on the base, the hollow tube is arranged on the base and is connected with the suction cup, a group of movable plug rods are symmetrically and movably arranged in the hollow tube, the movable plug rod is elastically connected to the hollow tube, the movable plug rod is L-shaped, a resistance portion is arranged on the movable seat, and the movable plug rod is located on the moving path of the resistance portion.

[0016] A method for using the laser measuring device described in the above technical solution, the specific steps of the method are as follows:

[0017] S100: The entire device is moved to a working position by means of a moving wheel, and the lifting assembly is controlled by a controller to adjust the height of the measuring table by means of the lifting assembly;

[0018] S200: The controller controls the power box to pass, and the power box controls the transport roller to rotate. The hinge reinforcement is placed on the transport roller, and the hinge reinforcement is transported by the transport roller. At this time, the hinge reinforcement is limited by the limit structure.

[0019] S300: When the limiting structure is working, the transmission structure is controlled to work synchronously. When the transmission structure is working, the measurement execution structure is controlled to work. The measurement execution structure can measure each position of the hinge reinforcement member passing through.

[0020] Compared with the prior art, the technical solution provided by the embodiment of the present invention has the following beneficial effects:

[0021] In the embodiment of the present invention, by setting a limiting structure, a transmission structure, and a measurement execution structure, when the transport roller rotates to transport the hinge reinforcement on the measurement table, the limiting structure can be used to ensure the stability of the hinge reinforcement during transportation. At the same time, by using the linked structure, the transmission structure can be controlled to work synchronously while the limiting structure is working. The transmission structure can control the measurement execution structure to work, and the measurement execution structure can perform laser measurement on the passing hinge reinforcement. The whole device has a high degree of automation. Compared with traditional laser measurement equipment, this device can ensure the transportation stability of the hinge reinforcement while ensuring the measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of a laser measurement device for the size of a hinge reinforcement in an embodiment of the present invention;

[0023] Figure 2 is a schematic structural diagram of a lifting assembly in a laser measurement device for the size of a hinge reinforcement in an embodiment of the present invention;

[0024] Figure 3 is a schematic structural diagram of an alignment structure in a laser measurement device for the size of a hinge reinforcement in an embodiment of the present invention;

[0025] Figure 4 is a schematic structural diagram of a measurement assembly in a laser measurement device for the size of a hinge reinforcement in an embodiment of the present invention;

[0026] Figure 5 is a schematic structural diagram of a limiting structure in a laser measurement device for the size of a hinge reinforcement in an embodiment of the present invention;

[0027] Figure 6 is a schematic structural diagram of a transmission structure in a laser measurement device for the size of a hinge reinforcement in an embodiment of the present invention;

[0028] Figure 7 is a schematic structural diagram of an inflation unit in a laser measurement device for the size of a hinge reinforcement in an embodiment of the present invention;

[0029] Figure 8 is a schematic structural diagram of a measurement execution structure in a laser measurement device for the size of a hinge reinforcement in an embodiment of the present invention.

[0030] Explanation of the reference numerals in the schematic diagram:

[0031] 1 - Base, 2 - Controller, 3 - Movable wheels, 4 - Telescopic columns, 5 - Suction cups, 6 - Hollow tubes, 7 - Movable plug rods, 8 - Pushing arms, 9 - Guide grooves, 10 - Movable seats, 11 - Electric telescopic rods, 12 - Position - adjusting rods, 13 - Rollers, 14 - Inclined surfaces, 15 - Contact parts, 16 - Measuring tables, 17 - Conveyor rollers, 18 - Power boxes, 19 - Buffer tubes, 20 - Roller seats, 21 - Limiting rollers, 22 - Slide bars, 23 - Springs, 24 - Driving frames, 25 - Teeth, 26 - Half - gears, 27 - Cylinders, 28 - Inflatable tubes, 29 - Mounting slide plates, 30 - Pistons, 31 - First reciprocating lead screws, 32 - Clamping shafts, 33 - Card slots, 34 - Measuring seats, 35 - Laser measuring heads, 36 - Second reciprocating lead screws, 37 - Transmission discs, 38 - Belts. Detailed implementation manners

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. The present invention will be further described below with reference to the embodiments.

[0033] Please refer to Figures 1-8 , in an embodiment of the present application, a laser measuring device for the size of a hinge reinforcement includes a base 1, a controller 2, a measuring table 16, conveyor rollers 17, and a power box 18. A plurality of movable wheels 3 are symmetrically arranged on the base 1. The measuring table 16 is movably arranged on the base 1 and is connected to the base 1 through a plurality of symmetrically arranged telescopic columns 4. The controller 2 is arranged on the measuring table 16. The number of conveyor rollers 17 is several and they are symmetrically and movably arranged on the measuring table 16. The control box is arranged on the measuring table 16 and is connected to the conveyor rollers 17. The laser measuring device further includes a lifting assembly and a measuring assembly. The lifting assembly is arranged between the base 1 and the measuring table 16 and is used to adjust the height of the measuring table 16 and control the base 1 to be fixed on the ground. The measuring assembly is arranged on the measuring table 16 and is used to measure the size of the hinge reinforcement;

[0034] The measuring assembly includes a measuring execution structure, a limiting structure, and a transmission structure. The limiting structure is arranged on the measuring table 16 and is used to limit the hinge reinforcement. The measuring execution structure is arranged on the measuring table 16 and is used to measure the size of the hinge reinforcement. The transmission structure is arranged on the measuring table 16 and connects the measuring execution structure and the limiting structure. When the limiting structure works, it controls the measuring execution structure to work synchronously through the transmission structure.

[0035] In a specific case of this embodiment, the measurement execution structure includes a second reciprocating lead screw 36, a measurement seat 34, a laser measurement head 35, a transmission disk 3837, and a belt 39. There are two second reciprocating lead screws 36, both of which are movably arranged on the measurement table 16. The two second reciprocating lead screws 36 are arranged on both sides of the conveying roller 17. The number of the measurement seats 34 is the same as that of the second reciprocating lead screws 36. The second reciprocating lead screw 36 slidably penetrates through the measurement seat 34 and is in threaded cooperation with each other. A plurality of laser measurement heads 35 are evenly arranged on the opposite surfaces of the measurement seat 34 at equal intervals. One end of the second reciprocating lead screw 36 is provided with a transmission disk 3837. The transmission disks 3837 are connected by a belt 39. The other end of the second reciprocating lead screw 36 is connected to the transmission structure.

[0036] In another specific case of this embodiment, the number of the limiting structures is several groups and they are symmetrically arranged on the measurement table 16. Each group of the limiting structures includes a buffer tube 19, a roller seat 20, a limiting roller 21, a sliding rod 22, and an elastic member. The buffer tube 19 is arranged on the measurement table 16. The sliding rod 22 is movably arranged on the buffer tube 19 and is connected by an elastic member between them. The roller seat 20 is arranged at one end of the sliding rod 22. The limiting roller 21 is movably arranged on the roller seat 20. One group of the limiting structures is connected to the second reciprocating lead screw 36 through the transmission structure.

[0037] It should be particularly noted that in this embodiment, the elastic member can be replaced by a spring 23, a spring piece, or an elastic steel plate structure. In this embodiment, the elastic member is preferably a spring 23. The spring 23 is connected between the buffer tube 19 and the sliding rod 22. As for the specific model parameters of the spring 23, the best choice can be made according to the actual situation and will not be specifically limited here.

[0038] In actual application, the whole device is moved to the working position through the moving wheels 3. The lifting assembly works under the control of the controller 2, and the height of the measurement table 16 is adjusted by the work of the lifting assembly. The power box 18 is controlled by the controller 2 to work, and the power box 18 controls the rotation of the conveying roller 17. By placing the hinge reinforcement on the conveying roller 17, the hinge reinforcement is transported by the conveying roller 17. At this time, under the action of the sliding rod 22 and the spring 23, the limiting roller 21 contacts the surface of the hinge reinforcement with different sizes and ensures that the hinge reinforcement moves along the measurement seat 34. During this process, under the action of the frictional resistance between the limiting roller 21 and the hinge reinforcement, the limiting roller 21 is driven to rotate. During the rotation of the limiting roller 21, the transmission structure can be controlled to work synchronously. When the transmission structure works, the second reciprocating lead screw 36 is controlled to rotate. Thus, under the threaded cooperation between the measurement seat 34 and the second reciprocating lead screw 36, the measurement seat 34 and the laser measurement head 35 are driven to reciprocate relative to the measurement table 16, and then the laser measurement work on the passing hinge reinforcement can be realized.

[0039] Please refer to Figures 1-8 Figures 1-8 , as another preferred embodiment of the present application, the transmission structure includes a mounting slide plate 29, a cylinder 27, a driving unit, and an inflation unit. The mounting slide plate 29 is movably arranged on the measuring table 16 and is elastically connected therebetween. The driving unit is arranged on the measuring table 16. The cylinder 27 is arranged on the measuring table 16 and is connected to the driving unit. The cylinder 27 controls the driving unit to work by telescoping. The inflation unit is arranged on and connected to the second reciprocating lead screw 36. The inflation unit is arranged on the mounting slide plate 29 and is connected to the limiting roller 21. When the limiting roller 21 moves, the cylinder 27 is controlled to telescope through the inflation unit.

[0040] In a specific case of this embodiment, the driving unit includes a driving frame 24, a plurality of teeth 25, and a half gear 26. The half gear 26 is movably arranged on the measuring table 16. The driving frame 24 is movably arranged on the measuring table 16. The half gear 26 is arranged inside the driving frame 24. The driving frame 24 is connected to the movable end of the cylinder 27. A plurality of the teeth 25 are equidistantly and symmetrically arranged on the inner wall of the driving frame 24. The teeth 25 are meshed with the half gear 26.

[0041] In another specific case of this embodiment, the inflation unit includes an inflation pipe 28, a piston 30, a first reciprocating lead screw 31, and a clamping shaft 32. The inflation pipe 28 is arranged on the mounting slide plate 29. The inflation pipe 28 is communicated with the cylinder 27. The piston 30 is movably arranged in the inflation pipe 28 and is elastically connected therebetween. The first reciprocating lead screw 31 is movably arranged in the inflation pipe 28 and is in threaded cooperation therewith. One end of the clamping shaft 32 is arranged on the limiting roller 21. A clamping groove 33 is formed in the first reciprocating lead screw 31 and is slidably matched with the other end of the clamping shaft 32.

[0042] When the hinge reinforcement is driven to move on the measuring table 16 by the transport roller 17, the limiting roller 21 can be driven to rotate. During the rotation of the limiting roller 21, the clamping shaft 32 can be driven to rotate. Under the cooperation between the clamping shaft 32 and the clamping groove 33, the first reciprocating lead screw 31 is driven to rotate. Further, under the threaded cooperation between the first reciprocating lead screw 31 and the inflation pipe 28, the piston 30 and the first reciprocating lead screw 31 reciprocate relative to the inflation pipe 28. Further, the air in the inflation pipe 28 can be repeatedly squeezed into the cylinder 27, driving the cylinder 27 to continuously telescope. Further, the driving frame 24 is driven to reciprocate relative to the measuring table 16. Under the meshing action between the teeth 25 and the half gear 26, the half gear 26 and the second reciprocating lead screw 36 can be driven to rotate, thereby controlling the measuring seat 34 and the laser measuring head 35 to reciprocate and realizing the measurement work on the passing hinge reinforcement.

[0043] Please refer toFigures 1-8 As another preferred embodiment of the present application, the lifting assembly includes a moving seat 10, a pushing arm 8, a positioning structure and an adsorption structure. The moving seats 10 are in a group and are symmetrically arranged relative to the base 1. The base 1 is formed with a guide groove 9 that slides with the moving seat 10. The moving seat 10 is movably connected to the measuring platform 16 through the pushing arm 8. The positioning structure is arranged on the base 1 and connected to the moving seat 10, and is used to adjust the distance between the moving seats 10. The adsorption structure is arranged on the base 1 and connected to the positioning structure. When the positioning structure is working, it controls the adsorption structure to work and fixes the base 1 to the ground.

[0044] In a specific case of this embodiment, the positioning structure includes a positioning rod 12, an inclined surface 14, a roller 13 and an electric telescopic rod 11. The positioning rod 12 is movably arranged on the base 1, and rollers 13 are movably arranged on both sides of the positioning rod 12. The inclined surface 14 is arranged on the moving seat 10 and slidably cooperates with the roller 13. The electric telescopic rod 11 is arranged on the base 1 and its movable end is connected to the positioning rod 12.

[0045] In another specific case of the present embodiment, the adsorption structure includes a suction cup 5, a hollow tube 6 and a movable plug rod 7, the suction cup 5 is in multiple number and is symmetrically arranged on the base 1, the hollow tube 6 is arranged on the base 1 and is connected with the suction cup 5, a group of movable plug rods 7 are symmetrically and movably arranged in the hollow tube 6, the movable plug rod 7 is elastically connected to the hollow tube 6, the movable plug rod 7 is L-shaped, and a resistance portion 15 is arranged on the movable seat 10, and the movable plug rod 7 is located on the moving path of the resistance portion 15.

[0046] When the entire device is moved to the working position by using the moving seat 10, the controller 2 controls the electric telescopic rod 11 to extend, thereby driving the adjustment rod 12 to move, and under the interference between the roller 13 and the inclined surface 14, the moving seat 10 can be driven to move away from each other, and then under the action of the pushing arm 8, the measuring table 16 is driven to move up relative to the base 1, so as to reach the working height, and in the process of the movement of the moving seat 10, the interference part 15 can be driven to move synchronously, and the interference part 15 and the L-shaped moving plug rod 7 meet, conflict and move synchronously, and then the moving plug rod 7 can be driven to move relative to the hollow tube 6, so as to extract the air between the suction cup 5 and the ground, so that the entire device can be adsorbed and fixed on the ground, thereby ensuring the stability of the entire device during the processing process.

[0047] See also Figures 1-8 In another embodiment of the present application, a method for using the laser measuring device described in the above technical solution is provided, and the specific steps of the method are as follows:

[0048] S100: Move the entire device to the working position via the moving wheels 3, and control the lifting assembly to work via the controller 2. The lifting assembly works to adjust the height of the measuring table 16.

[0049] S200: Control the power box 18 to work via the controller 2. The power box 18 works to control the rotation of the transport rollers 17. Place the hinge reinforcement on the transport rollers 17, and transport the hinge reinforcement via the transport rollers 17. At this time, perform a limiting process on the hinge reinforcement via the work of the limiting structure.

[0050] S300: When the limiting structure works, control the transmission structure to work synchronously. When the transmission structure works, control the measurement execution structure to work. The measurement execution structure can perform measurement work on various positions of the passing hinge reinforcement.

[0051] The above schematically describes the present invention and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and, without departing from the purpose of the present invention creation, design structurally similar ways and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

[0052] In addition, it should be understood that although this specification is described according to implementation manners, not every implementation manner only contains an independent technical solution. This narrative way of the specification is only for clarity. Those of ordinary skill in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation manners understandable to those of ordinary skill in the art.

Claims

1. A laser measurement device for the size of a hinge reinforcement, comprising a base, a controller, a measurement table, transport rollers, and a power box. A plurality of moving wheels are symmetrically arranged on the base. The measurement table is movably arranged on the base and the two are connected by a plurality of symmetrically arranged telescopic columns. The controller is arranged on the measurement table. The number of the transport rollers is several and they are symmetrically and movably arranged on the measurement table. The control box is arranged on the measurement table and is connected to the transport rollers, characterized in that, The laser measurement device further includes a lifting assembly and a measurement assembly. The lifting assembly is disposed between the base and the measurement table, and is used to adjust the height of the measurement table and control the fixation of the base on the ground. The measurement assembly is disposed on the measurement table and is used to measure the dimensions of the hinge reinforcement; The measurement assembly includes a measurement execution structure, a limiting structure, and a transmission structure. The limiting structure is disposed on the measurement table and is used to limit the hinge reinforcement. The measurement execution structure is disposed on the measurement table and is used to measure the dimensions of the hinge reinforcement. The transmission structure is disposed on the measurement table and connects the measurement execution structure and the limiting structure. When the limiting structure works, it controls the synchronous operation of the measurement execution structure through the transmission structure.

2. The laser measurement device for the hinge reinforcement size according to claim 1, characterized in that, The measurement execution structure includes two second reciprocating lead screws, a measurement seat, a laser measurement head, a transmission disc, and a belt. The number of the second reciprocating lead screws is two, and both are movably disposed on the measurement table. The two second reciprocating lead screws are disposed on both sides of the conveying roller. The number of the measurement seats is the same as that of the second reciprocating lead screws. The second reciprocating lead screw slidably penetrates the measurement seat and is in threaded cooperation with each other. A plurality of laser measurement heads are evenly disposed on the opposite surfaces of the measurement seat at equal intervals. A transmission disc is disposed at one end of the second reciprocating lead screw. The transmission discs are connected by a belt. The other end of the second reciprocating lead screw is connected to the transmission structure.

3. The laser measurement device for the hinge reinforcement size according to claim 2, characterized in that, The number of the limiting structures is several groups and they are symmetrically disposed on the measurement table. Each group of the limiting structures includes a buffer tube, a roller seat, a limiting roller, a sliding rod, and an elastic member. The buffer tube is disposed on the measurement table. The sliding rod is movably disposed on the buffer tube and is connected to each other through the elastic member. The roller seat is disposed at one end of the sliding rod. The limiting roller is movably disposed on the roller seat. One group of the limiting structures is connected to the second reciprocating lead screw through the transmission structure.

4. The laser measurement device for the hinge reinforcement size according to claim 3, characterized in that, The transmission structure includes a mounting slide plate, a cylinder, a driving unit, and an inflation unit. The mounting slide plate is movably disposed on the measurement table and is elastically connected to each other. The driving unit is disposed on the measurement table. The cylinder is disposed on the measurement table and is connected to the driving unit. The telescopic movement of the cylinder controls the operation of the driving unit. The inflation unit is disposed on and connected to the second reciprocating lead screw. The inflation unit is disposed on the mounting slide plate and is connected to the limiting roller. When the limiting roller moves, it controls the telescopic movement of the cylinder through the inflation unit.

5. The laser measurement device for the hinge reinforcement size according to claim 4, characterized in that, The driving unit includes a driving frame, a plurality of teeth, and a half gear. The half gear is movably disposed on the measurement table. The driving frame is movably disposed on the measurement table. The half gear is disposed inside the driving frame. The driving frame is connected to the movable end of the cylinder. A plurality of the teeth are evenly and symmetrically disposed on the inner wall of the driving frame. The teeth are meshed with the half gear.

6. The laser measurement device for the hinge reinforcement size according to claim 4, characterized in that, The inflation unit includes an inflation tube, a piston, a first reciprocating screw and a clamping shaft. The inflation tube is arranged on a mounting slide, the inflation tube is connected to a cylinder, the piston is movably arranged in the inflation tube and the two are elastically connected, the first reciprocating screw is movably arranged in the inflation tube and the two are threadedly matched, one end of the clamping shaft is arranged on a limiting roller, and a clamping groove is formed in the first reciprocating screw and slides with the other end of the clamping shaft.

7. The laser measurement device for the hinge reinforcement size according to claim 1, characterized in that, The lifting assembly includes a moving seat, a pushing arm, a positioning structure and an adsorption structure. The moving seats are in a group and are arranged symmetrically relative to the base. A guide groove is formed on the base for slidingly cooperating with the moving seat. The moving seat is movably connected to the measuring platform through the pushing arm. The positioning structure is arranged on the base and connected to the moving seat for adjusting the distance between the moving seats. The adsorption structure is arranged on the base and connected to the positioning structure. When the positioning structure is working, it controls the adsorption structure to work and fixes the base to the ground.

8. The laser measurement device for the hinge reinforcement size according to claim 7, characterized in that, The positioning structure includes a positioning rod, an inclined surface, rollers and an electric telescopic rod. The positioning rod is movably arranged on a base, rollers are movably arranged on both sides of the positioning rod, the inclined surface is arranged on a movable seat and slidably cooperates with the rollers, and the electric telescopic rod is arranged on the base and its movable end is connected to the positioning rod.

9. The laser measurement device for the size of the hinge reinforcement according to claim 8, characterized in that, The adsorption structure includes a suction cup, a hollow tube and a movable plug rod. The suction cups are in multiple numbers and are symmetrically arranged on the base. The hollow tube is arranged on the base and is connected with the suction cup. A group of movable plug rods are symmetrically and movably arranged in the hollow tube. The movable plug rod is elastically connected to the hollow tube. The movable plug rod is L-shaped. A resistance part is arranged on the movable seat, and the movable plug rod is located on the moving path of the resistance part.

10. A method of using the laser measurement device according to claim 1, characterized in that, The specific steps of the method of use are as follows: S100: The entire device is moved to a working position by means of a moving wheel, and the lifting assembly is controlled by a controller to adjust the height of the measuring table by means of the lifting assembly; S200: The controller controls the power box to pass, and the power box controls the transport roller to rotate. The hinge reinforcement is placed on the transport roller, and the hinge reinforcement is transported by the transport roller. At this time, the hinge reinforcement is limited by the limit structure. S300: When the limiting structure is working, the transmission structure is controlled to work synchronously. When the transmission structure is working, the measurement execution structure is controlled to work. The measurement execution structure can measure each position of the hinge reinforcement member passing through.

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