Safety foot board for production line

Abstract

The utility model discloses a safety foot board for a production line. The safety foot board comprises a foot board assembly, a safety protection system and a stair assembly. The safety protection system comprises the grating assembly and the laser scanner, the grating assembly and the laser scanner are combined to form the safety protection system with double insurance, the grating assembly belongs to static detection, the laser scanner belongs to dynamic detection, a covered working area can be monitored in real time in an all-around mode, and the safety protection system is high in safety. Once workers or moving obstacles in a working area are detected, response can be made in time, the safety of a working place is ensured, and the safety protection system can adapt to high-risk and complex application scenes through a dynamic and static combined monitoring mode and is high in practicability.

Description

Technical Field

[0001] The present application relates to the field of manufacturing, and in particular to a safety step for a production line. Background Art

[0002] With the rapid development of the automobile industry, the expansion of production scale, the improvement of efficiency and the advancement of production technology, the automation and complexity of automobile production lines are also increasing. However, highly developed and integrated automation also brings a large number of safety hazards. Human-machine safety is receiving more and more attention, which puts high demands on the control system of automated production lines. Utility Model Content

[0003] The embodiment of the present application provides a safety platform for a production line, which adopts a combined dynamic and static monitoring method and can adapt to high-risk and complex application scenarios.

[0004] An embodiment of the present application discloses a safety platform for a production line, comprising a platform assembly, a safety protection system and a stair assembly; the platform assembly is arranged on one side of the production line along a first horizontal direction; the safety protection system comprises a grating assembly and a laser scanner, the grating assembly comprises a transmitter, a receiver and two support mechanisms, the two support mechanisms are arranged on the platform assembly relatively along a second horizontal direction, and are used to install the transmitter and the receiver; a light wall is formed between the transmitter and the receiver, and the light wall separates the platform assembly into a safety zone and an operating zone along the first horizontal direction; the laser scanner is arranged on the platform assembly, and is used to scan the operating zone; the stair assembly is connected to the platform assembly, and is used for workers to pass between the safety zone and the ground.

[0005] The safety step used in the production line of the present application has at least the following beneficial effects:

[0006] The safety platform of the present application includes a platform assembly, a safety protection system and a stair assembly; the safety protection system of the present application includes a grating assembly and a laser scanner, and the grating assembly and the laser scanner are combined into a safety protection system with double insurance; although the grating assembly and the laser scanner can also play a safety protection role when used alone, factors such as the limitations, failures and environmental interference of a single hardware are still likely to occur. At this time, the compensatory role of the other hardware is highlighted, and the combined use of the two can greatly reduce safety risks. Among them, the grating assembly belongs to static detection, similar to the detection of a channel door. When the light beam is blocked or interrupted by an object, the equipment will automatically stop working to ensure the safety of the staff. The disadvantage is that it cannot determine whether the staff is in a dangerous job. In the working area, the laser scanner belongs to dynamic detection, which can monitor the covered working area in all directions in real time. Once the staff or moving obstacles in the working area are detected, it can respond in time to ensure the safety of the workplace. The disadvantage is that it can only feedback obstacles in the laser emitting plane. If only the laser scanner is installed and the grating component is not installed, when the laser scanner is installed at the height of detecting the position of the leg of the person, for the staff standing in the safe area with both feet, the detection feedback is normal. At this time, if the hands or objects held by the staff are not in the detection plane, when they are extended into the working area, they cannot be detected. Therefore, the safety protection system of the present application can adapt to high-risk and complex application scenarios through the combined dynamic and static monitoring method, and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0008] Figure 1 is a top view of the safety step in the embodiment of the present application (illustrating the production line);

[0009] Figure 2 is a schematic structural diagram of a safety step in an embodiment of the present application;

[0010] Figure 3 yes Figure 2 A schematic diagram of the structure of the middle step assembly;

[0011] Figure 4 yes Figure 3 The enlarged view of point A in the middle;

[0012] Figure 5 yes Figure 3 A partial schematic diagram of the center column mechanism;

[0013] Figure 6 yes Figure 2 Schematic diagram of the structure of the middle grating component;

[0014] Figure 7 yes Figure 6 Schematic diagram of the middle bracket mechanism and the launcher;

[0015] Figure 8 is a partial schematic diagram of the bracket mechanism;

[0016] Fig. 9 is a partial schematic diagram of the second adapter board and the third adapter board;

[0017] Fig.10 is a schematic diagram of the back side of the second adapter plate;

[0018] Fig.11 It is a schematic diagram of the structure of the steel column mechanism and the laser scanner;

[0019] Description of the reference numerals is as follows:

[0020] 1. Steel structure platform; 1a. Safety area; 1b. Operation area;

[0021] 2. Guardrail; 21. Guard frame; 22. Connector; 221. First tightening block; 222. First holding hole;

[0022] 3. Fence;

[0023] 4. Column mechanism; 41. Column; 42. First column foot plate; 43. Pad; 44. Adjusting bolt;

[0024] 45. Adjusting nut; 46. Welding block;

[0025] 5. Grating assembly; 5a. Light wall; 51. Transmitter; 52. Receiver; 53. Bracket mechanism; 531. Second column foot plate; 5311. First matching hole; 532. Bracket; 533. First adapter plate; 5331. First waist-shaped hole; 534. Second adapter plate; 5341. Second matching hole; 535. Third adapter plate; 5351. Second waist-shaped hole; 536. Pressing plate; 537. Pressing nut; 538. Connecting rod;

[0026] 6. Steel column mechanism; 61. Third column foot plate; 62. Steel column; 63. Mounting frame; 64. Second tightening block; 641. Second holding hole;

[0027] 7. Laser scanner;

[0028] 8. Staircase components;

[0029] 9. Production line. DETAILED DESCRIPTION

[0030] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0032] like Figure 1 and Figure 2 As shown, the embodiment of the present application discloses a safety step for a production line, the safety step includes a step assembly, a safety protection system and a stair assembly 8, which are specifically introduced below:

[0033] like Figure 1 As shown, the step assembly is located on one side of the production line 9 along the first horizontal direction. The production line 9 here refers to the production line in the prior art, such as a body-in-white welding production line or other types of production lines. The first horizontal direction and the second horizontal direction intersect vertically in a horizontal plane.

[0034] like Figure 2As shown, the step assembly includes a steel structure platform 1, a guardrail 2, a fence 3 and a column mechanism 4; the steel structure platform 1 is welded into a main frame by steel profiles, and then patterned steel is laid on the upper surface of the main frame. The steel structure platform 1 is a multifunctional working platform for production, debugging and maintenance. The guardrail 2 is arranged on the upper surface of the steel structure platform 1, and its function is to prevent the staff from falling from the steel structure platform 1; the fence 3 is arranged below the steel structure platform 1, and the fence 3 is welded by angle steel profiles and wire mesh, and is fixed between two column mechanisms 4 (specifically columns 41) by screws to prevent the staff from entering the production line area from below the steel structure platform 1, that is, the fence 3 is arranged along the circumference of the steel structure platform 1; there are multiple column mechanisms 4, and the multiple column mechanisms 4 in the embodiment of the present application are evenly distributed below both sides of the second horizontal direction, for supporting and stabilizing the steel structure platform 1.

[0035] like Figure 3 As shown, the guardrail 2 includes a plurality of guard frames 21 and connectors 22. The plurality of guard frames 21 are vertically arranged at the edge of the steel structure platform 1 along the circumference of the steel structure platform 1, and two adjacent guard frames 21 are connected by connectors 22. By enclosing the edge of the steel structure platform 1 with a plurality of guard frames 21, a protective function can be achieved.

[0036] like Figure 4 As shown, in some preferred solutions, the connecting member 22 includes two first tightening blocks 221, and both ends of the length direction of the two first tightening blocks 221 are provided with first arc grooves, and the first arc grooves on the two first tightening blocks 221 correspond to each other, wherein the first arc grooves on the two first tightening blocks 221 form a first holding hole 222 that is buckled on the protective frame 21, and the middle positions of the two first tightening blocks 221 are provided with corresponding first connecting holes, and the first tightening bolts (not shown) are connected to the first connecting holes of the two first tightening blocks 221, and the first arc grooves are buckled and tightened on the protective frame 21 by the first tightening bolts, thereby achieving a stable connection between the two protective frames 21. The connecting member 22 of the embodiment of the present application has a simple structure and is easy to disassemble and assemble.

[0037] like Figure 5As shown, the column mechanism 4 (8 are illustrated in the embodiment of the present application) includes a column 41, a first column base plate 42, a pad 43, an adjusting bolt 44 and an adjusting nut 45; the upper end of the column 41 is fixedly connected to the steel structure platform 1, and the first column base plate 42 is fixedly arranged on the lower end surface of the column 41; the adjusting bolt 44 is vertically penetrated through the first column base plate 42, and the pad 43 is fixed to the cement floor by an expansion screw, wherein the lower end of the adjusting bolt 44 is against the pad 43, and the pad 43 plays a supporting role; there are two adjusting nuts 45, both of which are threadedly connected to the adjusting bolt 44, and along the height direction, the first column base plate 42 is located between the two adjusting nuts 45, and the height of the first column base plate 42 can be adjusted by the cooperation of the two adjusting nuts 45 and the adjusting bolt 44, thereby realizing the leveling of the steel structure platform 1. In some preferred solutions, after the steel structure platform 1 is leveled, the first column base plate 42 and the pad 43 on the ground are welded into a complete body by welding blocks 46 to form a firm whole.

[0038] like Figure 6 As shown, the safety protection system includes a grating assembly 5 and a laser scanner 7. The grating assembly 5 includes a transmitter 51, a receiver 52 and two bracket mechanisms 53. The two bracket mechanisms 53 are relatively arranged on the steel structure platform 1 of the step assembly along the second horizontal direction. One bracket mechanism 53 is used to install the transmitter 51, and the other bracket mechanism 53 is used to install the receiver 52. A light wall 5a is formed between the transmitter 51 and the receiver 52 (that is, the transmitter 51 emits a light beam, and the receiver 52 receives the light beam. For a detailed introduction here, please refer to the prior art). The light wall 5a separates the step assembly into a safety area 1a and an operating area 1b along the first horizontal direction, wherein the operating area 1b is close to the production line. Work equipment, robot arms and other production mechanisms can be set on the steel structure platform 1 in this area, and the area far away from the production line is the safety area 1a; the laser scanner 7 is arranged on the operating area 1b of the steel structure platform 1 to scan the operating area 1b.

[0039] In the embodiment of the present application, for high-risk and complex application scenarios, the combination of the grating component 5 and the laser scanner 7 can effectively ensure the safety of the workplace while improving production efficiency.

[0040] like Figure 7 As shown, the bracket mechanism 53 includes a second column base plate 531, a bracket 532, a first adapter plate 533, a first threaded member (not shown), a second adapter plate 534 and a second threaded member (not shown);

[0041] like Figure 8As shown, the second column base plate 531 is fixedly set on the steel structure platform 1 of the step assembly; a first matching hole 5311 is set on the second column base plate 531, and the number of the first matching holes 5311 is multiple, and the multiple first matching holes 5311 are arranged along the circumference of the second column base plate 531; the bracket 532 is vertically arranged; the first adapter plate 533 is arranged on the lower end surface of the bracket 532, the first adapter plate 533 (circular) is coaxially overlapped with the second column base plate 531, and the first adapter plate 533 is connected to the second column base plate 531, and the specific connection method is: the first adapter plate 533 is provided with a first waist-shaped hole 5331, and the length direction of the first waist-shaped hole 5331 is configured as the circumference of the first adapter plate 533, and the first threaded member (such as a bolt or other mechanism) is penetrated in the first waist-shaped hole 5331 and the first matching hole 5311, thereby realizing the connection between the first adapter plate 533 and the second column base plate 531. Since the connection method of the first waist-shaped hole 5331 is adopted in the embodiment of the present application, the first adapter plate 533 can be horizontally rotated to a certain angle according to actual needs and then installed and secured by the first screw member, so that the horizontal angle of the transmitter 51 or the receiver 52 can be adjusted;

[0042] like Fig. 9 As shown, the second adapter plate 534 (circular) is arranged on the bracket 532, and the third adapter plate 535 (circular) is arranged on the back side of the transmitter 51 or the receiver 52. The second adapter plate 534 and the third adapter plate 535 are coaxially overlapped and connected. The specific connection method is: the second adapter plate 534 is provided with a second matching hole 5341, and the number of the second matching holes 5341 is multiple, and the multiple second matching holes 5341 are arranged along the circumference of the second adapter plate 534, and the third adapter plate 535 is provided with a second waist-shaped hole 5341. 51. The length direction of the second waist-shaped hole 5351 is configured as the circumference of the third adapter plate 535. The second bolt member (such as a bolt, etc.) is inserted into the second matching hole 5341 and the second waist-shaped hole 5351, so as to achieve a stable connection between the second adapter plate 534 and the third adapter plate 535. Among them, due to the connection method of the second waist-shaped hole 5351, the third adapter plate 535 can be rotated to a certain angle according to actual needs and then installed and secured with the second adapter plate 534 through the second threaded member. In this way, the inclination angle of the transmitter 51 or the receiver 52 can be adjusted.

[0043] In the embodiment of the present application, the bracket mechanism 53 can achieve adjustable horizontal circumferential angle and adjustable tilt angle, and can adjust the alignment of the transmitter 51 and the receiver 52.

[0044] like Fig.10As shown, in some preferred solutions, the bracket mechanism 53 also includes a clamping plate 536 and a clamping nut 537. Through the cooperation of the clamping plate 536 and the clamping nut 537, the second adapter plate 534 can be clamped on the bracket 532. Specifically, a connecting rod 538 is fixedly provided on the back side of the second adapter plate 534, and the length direction of the connecting rod 538 is configured as a second horizontal direction. The clamping plate 536 is slidably sleeved on the connecting rod 538, and the clamping plate 536 can slide in the second horizontal direction, wherein along the second horizontal direction, the bracket 532 is located between the clamping plate 536 and the back side of the second adapter plate 534, and the clamping nut 537 is threadedly connected to the clamping plate 536. On the connecting rod 538, the clamping nut 537 is located on the side of the clamping plate 536 away from the bracket 532. When the clamping nut 537 is screwed in, the clamping plate 536 can be pressed against the outer peripheral surface of the bracket 532, so that the back side of the clamping plate 536 and the second adapter plate 534 are clamped on the outer periphery of the bracket 532. When the position of the second adapter plate 534 needs to be changed, it is only necessary to loosen the clamping nut 537 and then adjust the position of the second adapter plate 534. In this way, the connection position of the second adapter plate 534 and the third adapter plate 535 can be changed according to actual needs, thereby changing the height of the transmitter 51 and the receiver 52.

[0045] like Fig.10 As shown, in some preferred solutions, a connecting rod 538 is provided on the back side of the second adapter plate 534, and there are multiple connecting rods 538, at least two connecting rods 538 are arranged opposite to each other in the first horizontal direction, and a guide channel is formed between the two connecting rods 538 in the first horizontal direction, and the bracket 532 is located in the guide channel. The cooperation between the guide channel and the connecting rod 538 can realize the motion guidance of the second adapter plate 534 when sliding along the height direction. Among them, the clamping nut 537 is threadedly connected with the connecting rod 538 in a one-to-one correspondence.

[0046] Please refer again Figure 2 There are two laser scanners 7, and both laser scanners 7 are located below the light wall 5a (the light wall 5a is formed between the receiver 52 and the transmitter 51). The design of the two laser scanners 7 can expand the scanning range and at the same time have a certain redundant design effect.

[0047] Please refer again Figure 2 A pair of laser scanners 7 are arranged beside the transmitter 51 and the receiver 52 respectively. The laser line emitted by the laser scanner 7 can cover the entire steel structure platform 1, and the covered area can be defined, so as to set different protection areas. The specific positions of the staff and objects in the entire covered area can be scanned. When the equipment is running, when it is detected that there are staff in the dangerous area between the light wall 5a and the production line, the system will stop the equipment of the production line to play a role in safety protection;

[0048] In the embodiment of the present application, the combined use of the grating component 5 and the laser scanner 7 can solve many safety problems in high-risk and complex application scenarios, especially when the production line is restarted from a paused state, whether the equipment has the conditions for restarting, such as whether there is an object passing through the light wall 5a to enter the danger zone (i.e., the working area 1b), or whether there is an object that has passed through the light wall 5a and is in the danger zone, etc. The combined use of the two can detect whether there are safety problems in the production line and solve personnel safety problems in the processes of debugging, trial operation, automated production, line switching, maintenance, etc. This method is safe, reliable, and efficient.

[0049] like Fig.11 As shown, in some preferred solutions, the laser scanner 7 is installed on the steel structure platform 1 of the step assembly through the steel column mechanism 6, and the steel column mechanism 6 and the laser scanner 7 are arranged in a one-to-one correspondence, as follows:

[0050] The steel column mechanism 6 includes a third column base plate 61, a steel column 62, a mounting frame 63 and two second tightening blocks 64 (four second tightening blocks 64 are shown in the embodiment of the present application, and the four second tightening blocks 64 are in pairs), the third column base plate 61 is fixedly arranged on the upper surface of the steel structure platform 1, the lower end of the steel column 62 is fixed on the third column base plate 61, and the steel column 62 is vertically arranged; the mounting frame 63 is used to install the laser scanner 7; the two second tightening blocks 64 are both provided with a second arc groove, and the second arc grooves on the two second tightening blocks 64 are The two arc-shaped grooves can be combined to form a second holding hole 641, and the second holding hole 641 can be used to snap and clamp on the outer periphery of the steel column 62. One of the two second tightening blocks 64 is fixedly set on the back side of the mounting frame 63, wherein the two second tightening blocks 64 are each provided with a corresponding second connecting hole, and a second tightening bolt (not shown) is connected to the second connecting hole of the two second tightening blocks 64. The two second tightening blocks 64 are tightened by the second tightening bolt, thereby achieving the two second tightening blocks 64 being clamped on the outer periphery of the steel column 62.

[0051] In the embodiment of the present application, after loosening the second tightening bolt, the height and horizontal angle of the mounting bracket 63 and the laser scanner 7 can be adjusted, which has good flexibility.

[0052] Please refer again Figure 2 The staircase assembly 8 is connected to the steel structure platform 1 of the step assembly, and the staircase assembly 8 is connected to the steel structure platform 1 located on one side of the safety zone 1a, for the staff to pass between the safety zone 1a and the ground. The structural form of the staircase assembly 8 can refer to the existing structure.

[0053] The above is only a specific implementation of the present application. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present application is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements should be included in the protection scope of this application.

Claims

1. A safety step for a production line, characterized in that: Including platform components, safety protection systems and stair components; The step assembly is arranged on one side of the production line (9) along a first horizontal direction; The safety protection system comprises a grating assembly (5) and a laser scanner (7); the grating assembly (5) comprises a transmitter (51), a receiver (52) and two bracket mechanisms (53); the two bracket mechanisms (53) are arranged on the platform assembly in a relative manner along a second horizontal direction and are used to install the transmitter (51) and the receiver (52); a light wall (5a) is formed between the transmitter (51) and the receiver (52); the light wall (5a) separates the platform assembly into a safety area (1a) and an operating area (1b) along a first horizontal direction; the laser scanner (7) is arranged on the platform assembly and is used to scan the operating area (1b); The staircase assembly is connected to the platform assembly and is used for workers to pass between the safety area (1a) and the ground.

2. The safety step for production line according to claim 1, characterized in that: The step assembly comprises a steel structure platform (1), a guardrail (2), a fence (3) and a column mechanism (4); the guardrail (2) is arranged above the steel structure platform (1); the fence (3) is arranged below the steel structure platform (1) to block the passage below the steel structure platform (1); A plurality of column mechanisms (4) are arranged on the steel structure platform (1) and are used to support the steel structure platform (1).

3. The safety step for production line according to claim 2, characterized in that: The guardrail (2) comprises a plurality of guard frames (21) and a connecting piece (22); the plurality of guard frames (21) are arranged at the edge of the steel structure platform (1) along the circumference of the steel structure platform (1), and two adjacent guard frames (21) are connected via the connecting piece (22).

4. The safety step for production line according to claim 3, characterized in that: The connecting member (22) comprises two first tightening blocks (221), both ends of the first tightening blocks (221) are provided with first arc grooves, the first arc grooves of the two first tightening blocks (221) form first holding holes (222) that are buckled on the protective frame (21); the two first tightening blocks (221) are provided with corresponding first connecting holes, and the first tightening bolts are connected to the first connecting holes of the two first tightening blocks (221).

5. The safety step for a production line according to any one of claims 2 to 4, characterized in that: The column mechanism (4) comprises a column (41), a first column base plate (42), a pad (43), an adjusting bolt (44) and an adjusting nut (45); the upper end of the column (41) is connected to the steel structure platform (1), and the first column base plate (42) is arranged at the lower end of the column (41); the adjusting bolt (44) is arranged on the first column base plate (42), the pad (43) is arranged on the ground, and the adjusting bolt (44) and the pad (43) are abutted against each other; two adjusting nuts (45) are both threadedly connected to the adjusting bolt (44), and the first column base plate (42) is located between the two adjusting nuts (45).

6. The safety step for production line according to claim 1, characterized in that: The support mechanism (53) of the grating assembly (5) comprises a second column base plate (531), a support (532), a first adapter plate (533), a first threaded member, a second adapter plate (534) and a second threaded member; The second column foot plate (531) is arranged on the step assembly, and the second column foot plate (531) is provided with a first matching hole (5311); the bracket (532) is arranged vertically; the first adapter plate (533) is arranged at the lower end of the bracket (532), and the first adapter plate (533) is provided with a first waist-shaped hole (5331) along its circumference, and the first threaded member is arranged in the first waist-shaped hole (5331) and the first matching hole (5311); The second adapter plate (534) is disposed on the bracket (532). A second matching hole (5341) is provided, and a third adapter plate (535) is provided on the transmitter (51) or the receiver (52), and the third adapter plate (535) is provided with a second waist-shaped hole (5351) along its circumference; the second threaded member is provided in the second waist-shaped hole (5351) and the second matching hole (5341).

7. The safety step for a production line according to claim 6, characterized in that: The bracket mechanism (53) also includes a clamping plate (536) and a clamping nut (537); a connecting rod (538) is provided on the back side of the second adapter plate (534), the clamping plate (536) is slidably mounted on the connecting rod (538), and the bracket (532) is located between the clamping plate (536) and the back side of the second adapter plate (534); the clamping nut (537) is threadedly connected to the connecting rod (538) and is used to clamp the clamping plate (536) onto the outer peripheral surface of the bracket (532).

8. The safety step for production line according to claim 7, characterized in that: A guide channel is formed between the plurality of connecting rods (538), and the bracket (532) is located in the guide channel, so that the second adapter plate (534) can slide on the bracket (532) along the height direction; the clamping nut (537) and the connecting rod (538) are arranged in a one-to-one correspondence.

9. The safety step for a production line according to any one of claims 6 to 8, characterized in that: The laser scanner (7) is installed on the step assembly through a steel column mechanism (6); the steel column mechanism (6) comprises a third column base plate (61), a steel column (62), a mounting frame (63) and two second tightening blocks (64); The third column base plate (61) is arranged on the platform assembly; the steel column (62) is vertically arranged on the third column base plate (61), the laser scanner (7) is arranged on the mounting frame (63), and the two second tightening blocks (64) are each provided with a second arc groove, and the second arc grooves of the two second tightening blocks (64) form a second holding hole (641) that is engaged with the steel column (62), and one of the second tightening blocks (64) is arranged on the back side of the mounting frame (63); the two second tightening blocks (64) are each provided with a corresponding second connecting hole, and the second tightening bolt is connected to the second connecting holes of the two second tightening blocks (64).

10. The safety step for production line according to claim 9, characterized in that: There are two laser scanners (7), and both laser scanners (7) are located below the light wall (5a).

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