Protective cover contour laser measuring device

Abstract

The invention relates to the technical field of workpiece measuring equipment, in particular to a protective cover contour laser measuring device which comprises a machine body and a data processing system, and a vertical face reference part, a fixed connecting piece, a first sliding rail and a second sliding rail are fixedly installed on the machine body; a movable connecting piece is installed on the first sliding rail, a placement seat is installed on the second sliding rail, a supporting piece is installed on the placement seat, a crank arm is fixedly connected to the supporting piece, a first laser range finder is installed on the crank arm, a second laser range finder is installed on the supporting piece, and the second laser range finder points to the top of the telescopic protective cover in the vertical state. And the second laser range finder points to the vertical face reference part in a horizontal state. According to the laser measuring device for the contour of the protective cover, the first laser range finder and the second laser range finder serve as data acquisition elements, three-dimensional data acquisition and position information feedback are achieved in a reciprocating stroke, the structure is simple, the part utilization rate is high, the implementation cost is low, the overall size adaptability of workpieces is high, and operation energy consumption is low.

Description

Technical Field

[0001] This invention relates to the field of workpiece measuring equipment technology, and in particular to a protective cover contour laser measuring device. Background Technology

[0002] In the field of machine tools and automation equipment, telescopic protective covers are important non-standard components that protect critical moving parts. The accuracy of their outer contour dimensions directly affects installation compatibility and operational reliability. However, the high degree of customization (various sizes and shapes) of these products and the unique flexible, wrinkled surface of bellows-style protective covers make it difficult for traditional general-purpose measuring tools to measure efficiently and accurately, and they are prone to deformation errors due to contact force. On the other hand, high-precision professional measuring equipment (such as coordinate measuring machines and 3D laser scanners) is difficult to use for rapid quality inspection on the production site due to its high cost, complex operation, or insufficient adaptability to uneven surfaces. As a result, this link has long relied on manual experience, becoming a technical bottleneck restricting the standardization of product quality and the improvement of production efficiency. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a laser measurement device for the outer contour of a protective cover, aiming to solve the technical problem of inconvenient measurement of the outer contour of existing telescopic protective covers.

[0004] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: A protective cover contour laser measuring device includes a body and a data processing system. The body is equipped with a vertical reference part, a fixed connector, and a first slide rail and a second slide rail extending in the front-back direction. A movable connector is installed on the first slide rail, and the movable connector and the fixed connector are distributed in the front-back direction. The second slide rail is equipped with a mounting seat and a feeding mechanism that are connected by a transmission. The mounting seat is equipped with a support member and a first driving mechanism. The support member is driven by the first driving mechanism and can rotate about a vertical axis. A crank arm is fixedly connected to the support member, and a first laser rangefinder is installed on the crank arm. The first laser rangefinder is located on one side of the telescopic protective cover, and the measuring end points to the side of the telescopic protective cover. The support is equipped with a second laser rangefinder and a second drive mechanism. The second laser rangefinder is driven by the second drive mechanism and can rotate around a horizontal axis. When the second laser rangefinder is in a vertical state, its measuring end points to the top of the telescopic protective cover. When the second laser rangefinder is in a horizontal state, its measuring end points to the vertical reference part. During operation, the first laser rangefinder and the second laser rangefinder provide real-time data feedback to the data processing system.

[0005] In a further embodiment, the machine body includes a table with a groove extending in the front-to-back direction; the first slide rail is installed in the groove, and the fixed connector and the movable connector are located on the upper side of the table.

[0006] In a further embodiment, the fixed connector is detachably fixedly connected to the machine body; a sliding seat is provided on the first slide rail, and the movable connector is detachably fixedly connected to the sliding seat; a handle is fixedly connected to the sliding seat.

[0007] In a further embodiment, a locking mechanism is provided between the movable connector and the first slide rail to lock the position of the movable connector.

[0008] In a further embodiment, the first drive mechanism and the second drive mechanism are motor devices capable of controlling the rotation angle of the output shaft.

[0009] In a further embodiment, the crank arm can be adjusted up and down along the support member, and a positioning bolt is provided between the crank arm and the support member to lock the relative position of the crank arm and the support member.

[0010] In a further embodiment, the second slide rail is a ball screw slide rail, the mounting seat is fixedly connected to the slide block of the ball screw slide rail, and the feeding mechanism includes a drive motor for providing power to the screw mechanism inside the ball screw slide rail.

[0011] In a further embodiment, two columns are fixed on the body, and the two ends of the second slide rail are respectively supported and fixed by the two columns, and the vertical reference part is disposed on one of the columns.

[0012] In a further embodiment, a vertically extending bushing is fixedly connected to the mounting base; the upper end of the support member is rotatably connected to the bushing and is connected to the first drive mechanism for transmission.

[0013] In a further embodiment, a rotating seat is fixedly connected to the lower end of the support member, the second drive mechanism is mounted on the rotating seat, and the second laser rangefinder is provided with a hinge part; the hinge part is rotatably connected to the rotating seat and is drively connected to the second drive mechanism.

[0014] Compared with the prior art, the protective cover contour laser measurement device of the present invention has the following advantages: 1. This protective cover contour laser measurement device uses a single-function first laser rangefinder and a second laser rangefinder as data acquisition elements. With the help of direction switching and movement mechanisms, it can achieve comprehensive acquisition of three-dimensional data and feedback of position information in one reciprocating stroke. It has a simple structure, high component utilization rate, low implementation cost, strong adaptability to the size of non-standard customized protective covers, and low operating energy consumption.

[0015] 2. When using this protective cover contour laser measurement device, the two ends of the telescopic protective cover are fixed by the movable connector and the fixed connector. The telescopic state of the telescopic protective cover can be adjusted according to the test needs to simulate the working environment in the actual application of the telescopic protective cover, so that the measurement data has more direct guiding value for the actual assembly and operation interference verification.

[0016] 3. This protective cover contour laser measurement device adopts non-contact measurement, which avoids the deformation interference caused by external forces on the telescopic protective cover during the measurement process. Especially for protective cover products made of flexible materials such as bellows protective covers, it can significantly improve the accuracy of measurement data. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention.

[0018] Figure 1 This is a schematic diagram of the overall structure of the laser measurement device for the protective cover contour in the embodiment.

[0019] Figure 2 This is a schematic diagram of the overall structure of the protective cover contour laser measurement device in another direction in the embodiment.

[0020] Figure 3 This is a schematic diagram of the cooperation structure between the movable connector and the first slide rail in the embodiment.

[0021] Figure 4 This is a schematic diagram of the assembly structure of the mounting base, support member, first laser rangefinder, and second laser rangefinder in the embodiment.

[0022] Figure 5 This is a schematic diagram showing the state of the protective cover after the telescopic protective cover is installed on the laser measurement device for the protective cover contour in the embodiment.

[0023] Figure 6 This is a schematic diagram of the working state of the protective cover contour laser measurement device during the first scan in the embodiment.

[0024] Figure 7 This is a schematic diagram showing the state of the protective cover contour laser measuring device when adjusting the direction of the first laser rangefinder in the embodiment.

[0025] Figure 8 This is a schematic diagram of the working state of the protective cover contour laser measurement device during the second scan in the embodiment.

[0026] Figure label: 1-Body; 2-Locking mechanism; 3-Modible connector; 4-First slide rail; 5-Tabletop; 6-Fixed connector; 7-Column; 8-Second laser rangefinder; 9-Second drive mechanism; 10-Vertical reference part; 11-Positioning bolt; 12-Drive motor; 13-Hosting seat; 14-First drive mechanism; 15-Busset; 16-Crank arm; 17-First laser rangefinder; 18-Second slide rail; 19-Handle; 20-Sliding seat; 21-Groove; 22-Rotating seat; 23-Supporting member; 24-Hinge. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0028] Reference Figures 1 to 5 As shown in the embodiment, a protective cover contour laser measuring device is disclosed, including a body 1 and a data processing system; a first slide rail 4, a second slide rail 18, a vertical reference part 10, and a fixed connector 6 are installed and fixed on the body 1. The first slide rail 4 and the second slide rail 18 both extend in the front-back direction; a movable connector 3 that can move along its position is installed on the first slide rail 4. The movable connector 3 and the fixed connector 6 are distributed in the front-back direction. The movable connector 3 and the fixed connector 6 are used to fix the two ends of the telescopic protective cover to be measured. When the movable connector 3 moves along the first slide rail 4, it will move away from or closer to the fixed connector 6 to adjust the telescopic state of the telescopic protective cover; The second slide rail 18 is located above the body 1. A mounting seat 13 and a feeding mechanism are mounted on the second slide rail 18. The mounting seat 13 is driven by the feeding mechanism and can move along the second slide rail 18. A support member 23 and a first driving mechanism 14 are mounted on the mounting seat 13. The support member 23 is rotatably connected to the mounting seat 13 and is driven by the first driving mechanism 14 to rotate around a vertical axis to adjust the direction. A crank arm 16 extending toward the side of the telescopic protective cover to be measured is fixedly connected to the support member 23. A first laser rangefinder 17 is installed on the crank arm 16. The first laser rangefinder 17 is located on one side of the telescopic protective cover, and the measuring end points toward the side of the telescopic protective cover, so that the first laser rangefinder 17 can measure the distance between itself and the corresponding point on the side of the telescopic protective cover. The support member 23 is equipped with a second laser rangefinder 8 and a second drive mechanism 9, which are connected by a transmission. The second laser rangefinder 8 is rotatably connected to the support member 23 and is driven by the second drive mechanism 9 to rotate around a horizontal axis, thereby switching between a vertical and a horizontal state. The second laser rangefinder 8 is located on the upper side of the telescopic protective cover. When the second laser rangefinder 8 is in the vertical state, its measuring end points towards the top of the telescopic protective cover, so that the second laser rangefinder 8 can measure the distance between itself and the corresponding point on the top of the telescopic protective cover. When the second laser rangefinder 8 is in the horizontal state, its measuring end points towards the vertical reference part 10, so that the second laser rangefinder 8 can measure the distance between itself and the vertical reference part 10. Both the first laser rangefinder 17 and the second laser rangefinder 8 are connected to the data processing system and provide real-time feedback of distance data to the data processing system during operation, so that the data processing system can calculate and obtain the corresponding contour data.

[0029] Based on the above structure, the working principle of the protective cover contour laser measurement device in this invention is as follows: Reference Figure 1 , Figure 5 As shown, taking the most common C-type telescopic protective cover as an example, the two ends of the telescopic protective cover are fixedly connected to the fixed connector 6 and the movable connector 3 respectively. By adjusting the position of the movable connector 3, the telescopic state of the telescopic protective cover can be adjusted. Thus, the outer contour can be measured in different telescopic states such as fully retracted, fully extended, and specific lengths to meet actual needs. During the above operation, the feeding mechanism adjusts the mounting seat 13 to one end of the second slide rail 18 to avoid the first laser rangefinder 17 and the second laser rangefinder 8 and other components from hindering the installation operation of the telescopic protective cover. like Figures 5 to 8As shown, during the outer contour measurement, the first drive mechanism 14 adjusts the first laser rangefinder 17 to one side of the telescopic protective cover, and the second drive mechanism 9 adjusts the second laser rangefinder 8 to a horizontal position. First, a first scan is performed. Driven by the feed mechanism, the first laser rangefinder 17 moves from one end of the telescopic protective cover to the other. During this movement, the first laser rangefinder 17 measures the distance between itself and the side of the telescopic protective cover and feeds the data back to the data processing system in real time. During this movement, the second laser rangefinder 8 measures the distance between itself and the facade reference part 10. The data is fed back to the data processing system in real time. After the first scan is completed, the first drive mechanism 14 drives the support 23 to rotate 180°, adjusting the first laser rangefinder 17 to the other side of the telescopic protective cover. The second drive mechanism 9 adjusts the second laser rangefinder 8 from a horizontal to a vertical position. Then, a second scan is performed. Driven by the feeding mechanism, the first laser rangefinder 17 and the second laser rangefinder 8 move from one end of the telescopic protective cover to the other end. During the movement, the first laser rangefinder 17 measures the distance between itself and the side of the telescopic protective cover and transmits the data. The data is fed back to the data processing system in real time. The second laser rangefinder 8 measures the distance between itself and the top of the telescopic protective cover during its movement and feeds the data back to the data processing system in real time. Since the dimensions of the fixed connector 6 and the movable connector 3 are fixed, and there must be a clear dividing point at their connection with the telescopic protective cover, the data processing system can identify the position data of the fixed connector 6 and the movable connector 3 based on the data obtained from the first scan and calculate the distance between them, thereby obtaining the length of the telescopic protective cover. During the two scans, the length and position of the telescopic protective cover do not change. The data processing system can spatially correlate and synthesize the data obtained from the first and second scans to obtain the width and height of each cross-section of the telescopic protective cover over its entire length. Thus, the data processing system can calculate and reconstruct a complete three-dimensional contour model and extract key data such as local or overall dimensions, contour uniformity, deformation, symmetry, and the distribution of segments or folds as needed to determine whether it meets the customization requirements and process quality indicators.

[0030] like Figure 1 , Figure 2 As shown, in a specific implementation, the machine body 1 includes a platform 5, on which a groove 21 extending in the front-back direction is formed, and the first slide rail 4 is installed in the groove 21; the fixed connector 6 and the movable connector 3 are located on the upper side of the platform 5; thus, the installation and connection of the two ends of the telescopic protective cover being measured with the fixed connector 6 and the movable connector 3 is easier to operate, and the lower side of the telescopic protective cover is supported by the platform 5, which can avoid additional deformation and improve measurement accuracy.

[0031] like Figure 1, Figure 2 , Figure 4 As shown, in a specific implementation, a vertically extending bushing 15 is fixedly connected to the mounting base 13, and the upper end of the support member 23 is rotatably connected to the bushing 15; the first drive mechanism 14 is drively connected to the upper end of the support member 23.

[0032] like Figure 1 , Figure 4 As shown, in a specific implementation, a rotating base 22 is fixedly connected to the lower end of the support member 23, and a hinge part 24 is provided on the second laser rangefinder 8. The hinge part 24 is rotatably connected to the rotating base 22; the second drive mechanism 9 is mounted on the rotating base 22 and is rotatably connected to the hinge part 24.

[0033] like Figure 1 , Figure 2 As shown, in a specific implementation, the fixed connector 6 is detachably fixedly connected to the body 1; a sliding seat 20 is provided on the first slide rail 4, and the movable connector 3 is detachably fixedly connected to the sliding seat 20; the detachable method includes conventional connection methods such as bolt connection and snap-fit ​​connection; thus, the fixed connector 6 and the movable connector 3 can be designed into various different shapes to meet the measurement needs of different telescopic protective covers; in order to facilitate the adjustment of the telescopic protective cover's telescopic state, a handle 19 is fixedly connected to the sliding seat 20.

[0034] like Figure 1 , Figure 3 As shown, in a specific implementation scheme, the telescopic protective cover made of flexible material is prone to expansion and contraction deformation, especially in the extended state, it has a rebound force, making it difficult to maintain and adjust the telescopic state stably during the measurement process; therefore, a locking mechanism 2 is provided between the movable connector 3 and the first slide rail 4 to lock the position of the movable connector 3 and prevent the telescopic protective cover from changing its expansion and contraction state during the test.

[0035] In a specific implementation, the first drive mechanism 14 and the second drive mechanism 9 are motor devices capable of controlling the rotation angle of the output shaft.

[0036] like Figure 1 , Figure 4 As shown, in a specific implementation, the crank arm 16 can be adjusted up and down along the support member 23, and a positioning bolt 11 is provided between the crank arm 16 and the support member 23 to lock the relative position of the two; thus, the up and down position of the first laser rangefinder 17 can be adjusted according to the measurement needs.

[0037] like Figure 1 , Figure 2As shown, in a specific implementation, the second slide rail 18 is a ball screw slide rail, the mounting seat 13 is fixedly connected to the slide block of the ball screw slide rail, and the feeding mechanism includes a drive motor 12 for providing power to the screw mechanism inside the ball screw slide rail.

[0038] like Figure 1 , Figure 6 As shown, in a specific implementation, two columns 7 are fixed on the body 1, and the two ends of the second slide rail 18 are respectively supported and fixed by the two columns 7. The vertical reference part 10 is disposed on one of the columns 7.

Claims

1. A laser measurement device for the contour of a protective cover, comprising a body and a data processing system, characterized in that: The machine body is equipped with a vertical reference section, a fixed connecting member, and a first and second slide rail extending in the front-to-back direction. A movable connecting member is mounted on the first slide rail, and the movable and fixed connecting members are distributed along the front-to-back direction. A transmission-connected mounting base and a feeding mechanism are mounted on the second slide rail. A support member and a first driving mechanism are mounted on the mounting base. The support member is driven by the first driving mechanism and can rotate around a vertical axis. A crank arm is fixedly connected to the support member, and a first laser rangefinder is mounted on the crank arm. The first laser rangefinder is located on one side of the telescopic protective cover, and its measuring end points towards the side of the telescopic protective cover. A second laser rangefinder and a second driving mechanism are mounted on the support member. The second laser rangefinder is driven by the second driving mechanism and can rotate around a horizontal axis. When the second laser rangefinder is in a vertical state, its measuring end points towards the top of the telescopic protective cover; when the second laser rangefinder is in a horizontal state, its measuring end points towards the vertical reference section. During operation, the first and second laser rangefinders provide real-time data feedback to the data processing system.

2. The protective cover contour laser measuring device according to claim 1, characterized in that: The machine body includes a table, on which a groove extending in the front-to-back direction is formed; the first slide rail is installed in the groove, and the fixed connector and the movable connector are located on the upper side of the table.

3. The protective cover contour laser measuring device according to claim 1, characterized in that: The fixed connector is detachably fixedly connected to the machine body; a sliding seat is provided on the first slide rail, and the movable connector is detachably fixedly connected to the sliding seat; a handle is fixedly connected to the sliding seat.

4. The protective cover contour laser measuring device according to claim 1, characterized in that: A locking mechanism is provided between the movable connector and the first slide rail to lock the position of the movable connector.

5. The laser measurement device for the protective cover contour according to claim 1, characterized in that: The first drive mechanism and the second drive mechanism are motor devices capable of controlling the rotation angle of the output shaft.

6. The laser measurement device for the protective cover contour according to claim 1, characterized in that: The crank arm can be adjusted up and down along the support member. A positioning bolt is provided between the crank arm and the support member to lock the relative position of the crank arm and the support member.

7. The protective cover contour laser measuring device according to claim 1, characterized in that: The second slide rail is a ball screw slide rail, and the mounting seat is fixedly connected to the slide block of the ball screw slide rail. The feeding mechanism includes a drive motor for providing power to the screw mechanism inside the ball screw slide rail.

8. The laser measurement device for the protective cover contour according to claim 1, characterized in that: Two columns are fixed on the body, and the two ends of the second slide rail are supported and fixed by the two columns respectively. The vertical reference part is set on one of the columns.

9. The laser measuring device for the profile of the protective cover according to claim 1, characterized in that: A vertically extending bushing is fixedly connected to the mounting base; the upper end of the support is rotatably connected to the bushing and is connected to the first drive mechanism for transmission.

10. The laser measuring device for the profile of the protective cover according to claim 1, characterized in that: The lower end of the support is fixedly connected to a rotating base, the second drive mechanism is mounted on the rotating base, and the second laser rangefinder is provided with a hinge part; the hinge part is rotatably connected to the rotating base and is drively connected to the second drive mechanism.

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