Self-resetting multidirectional backplate anti-collision protection device

Abstract

The utility model discloses a self -resetting multidirectional backboard anti -collision protection device relates to cutting, welding and other technical field, the utility model discloses a mounting fixed body, and the front end surface center is equipped with the spherical concave hole and installs with its cooperation front anti -collision board, install fastening bolt on the front anti -collision board, fastening bolt is connected with spring draw plate, spring draw plate is installed in the rear end of buffer spring inside the mounting fixed body, and through fastening bolt tensioning is compressed buffer spring simultaneously, the spherical surface cooperation of mounting fixed body and front anti -collision board with buffer spring can buffer the impact from each direction, the lower end inside mounting fixed body is equipped with piston rod, install reset push rod on the piston rod, the both sides of mounting fixed body are equipped with position detection switch and L shape air pipe joint, and both with external reset solenoid valve connection, reset solenoid valve is accessed laser equipment control system, can through control system intercommunication reset solenoid valve after the impact accident occurs, fills in compressed gas and promotes piston rod, makes reset push rod displacement drive laser head reset.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting and welding technology, and in particular to a self-resetting multi-directional anti-collision protection device. Background Technology

[0002] With the development of science and technology and productivity, lasers have been widely used in industries such as machining and manufacturing. The principle is to use an auxiliary gas and focus a high-energy-density laser beam on the surface of the workpiece using laser cutting technology, so as to melt or vaporize it to complete the cutting process of the workpiece. Compared with traditional processes, laser cutting has achieved a qualitative leap in terms of precision, efficiency and multifunctionality.

[0003] However, during laser cutting operations, the core component of the laser equipment—the laser head—needs to be close to the workpiece. Due to factors such as internal stress in the workpiece causing warping after cutting, thermal deformation of steel plates, the variety of plate types and thicknesses, the diversity of parts to be cut, and manual operation, the laser head is prone to collision accidents, leading to injury or even damage to the laser head. Moreover, as the core component of the laser equipment, the cost of repairing or replacing the laser head is high, and the after-sales service time is long. This not only delays the company's daily production but also easily affects the processing accuracy of the laser equipment.

[0004] Based on the current state of the industry, this utility model is proposed: a self-resetting multi-directional backplate anti-collision protection device for laser cutting heads. It uses an internal spring to buffer the damage from impact accidents, magnets and positioning beads to ensure the stability and accuracy of operation, and compressed air and piston rod to automatically reset the laser head after an impact accident. Utility Model Content

[0005] This utility model aims to solve the problem of easy damage to laser heads due to impact in the current laser cutting industry, and proposes a self-resetting multi-directional backplate anti-collision protection device.

[0006] To address the pain points in the aforementioned industries, this utility model employs the following technical solution:

[0007] The self-resetting multi-directional backplate anti-collision protection device includes: a front anti-collision plate installed on the front face of the mounting and fixing body, a fastening bolt installed on the front anti-collision plate, the fastening bolt connected to a spring pull plate, the spring pull plate installed on the rear end of a buffer spring inside the mounting and fixing body, and the buffer spring being tightened and compressed by the fastening bolt; the front face of the mounting and fixing body has a countersunk hole and is equipped with an adsorption magnet one and an adsorption magnet two, and a positioning bead that cooperates with the front anti-collision plate is embedded on its surface; the positioning bead is evenly distributed in four groups around the center of the mounting and fixing body; the rear face of the mounting and fixing body has a countersunk hole and a threaded hole and is equipped with a displacement detection switch assembly; a fixing nut is installed at the tail of the displacement detection switch assembly; a sealing plate is installed on the rear face of the mounting and fixing body and the front face of the front anti-collision plate; a right sealing plate and a left sealing plate are respectively installed on both sides of the mounting and fixing body.

[0008] The lower end of the mounting and fixing body is provided with a piston rod, on which a reset push rod is installed. The piston rod has grooves at both ends and sealing rings are installed. Air pipe connector mounting seats are installed on both sides of the mounting and fixing body at positions corresponding to the piston rod. L-shaped air pipe connectors are installed on the air pipe connector mounting seats. Proximity switches right and left are respectively installed on the upper parts of both sides of the mounting and fixing body. Both are connected to an external reset solenoid valve. The upper end face of the mounting and fixing body is provided with a threaded hole and a switch signal connector is installed. The reset solenoid valve and the switch signal connector are connected to the laser equipment control system.

[0009] As a preferred embodiment of this utility model: the mounting and fixing body has a spherical concave hole at its center and the front anti-collision plate has a spherical protrusion that matches it. The spherical fit between the two allows the front anti-collision plate to rotate or swing on the mounting and fixing body.

[0010] As a preferred embodiment of this utility model: the compression of the buffer spring under normal working conditions should be such that the rear end face of the spring pull plate does not protrude from the rear end face of the mounting and fixing body, so that the front end face of the fixing body is in close contact with the front bumper plate, and the tension generated by the compression of the buffer spring can pull the front bumper plate back to its original position when it swings.

[0011] As a preferred embodiment of this utility model, a lower right limiting plate is installed on the lower end face of the mounting and fixing body to limit the rotation angle of the front anti-collision plate.

[0012] As a preferred embodiment of this utility model, the front end sealing plate is positioned higher than the lower limit plate to prevent interference between the two when the front anti-collision plate swings or rotates.

[0013] As a preferred embodiment of this utility model, the rear end face of the mounting and fixing body is provided with a wire groove for connecting the switch signal connector and the displacement detection switch assembly.

[0014] As a preferred embodiment of the present invention, the front anti-collision plate is provided with a ball hole that cooperates with the positioning bead, and the diameter of the ball hole is slightly larger than the diameter of the positioning bead.

[0015] As a preferred embodiment of this utility model, the front anti-collision plate has a conical surface at the far end of the fastening bolt mounting hole, so that the front anti-collision plate can swing relative to the mounting and fixing body when an impact accident occurs.

[0016] As a preferred embodiment of this utility model: the proximity switch mounted on the right side of the mounting and fixing body is connected to the left coil of the reset solenoid valve, and the proximity switch mounted on the left side of the mounting and fixing body is connected to the right coil of the reset solenoid valve.

[0017] As a preferred embodiment of this utility model: the lower end of the front anti-collision plate is provided with a push rod groove. When an impact accident occurs, the reset push rod installed on the piston rod pushes the inner side of the push rod groove to drive the front anti-collision plate to rotate and reset the laser head.

[0018] The beneficial effects of this utility model are as follows:

[0019] Highly adaptable: The position and size of the mounting holes of this self-resetting multi-directional backplane anti-collision protection device can change with the position of the laser head holes, allowing it to be installed and used without altering the size of the existing equipment holes.

[0020] Multi-directional anti-collision protection: The self-resetting multi-directional backplate anti-collision protection device is installed and fixed in the main body and the front anti-collision plate through a spherical fit, so that the laser head installed on the front anti-collision plate can rotate and swing in any direction with the front anti-collision plate, buffering the impact from all directions, and at the same time, turning the original hard impact into soft contact.

[0021] Impact alarm mechanism: When the self-resetting multi-directional backplate anti-collision protection device is working normally, the displacement detection switch assembly installed in the mounting and fixing body presses against the front anti-collision plate and is triggered. When an impact accident occurs, the front anti-collision plate is knocked open and lifted up, the displacement detection switch assembly disconnects and sends an alarm signal to the control system, and the laser equipment stops running.

[0022] Self-resetting design: A piston rod is installed inside the lower end of the mounting and fixing body, and a reset push rod is installed on the piston rod. After an impact accident, the impact swing in the front and rear directions is pulled back to the original position by the buffer spring. The impact in the left and right directions causes the laser head to drive the front anti-collision plate to rotate. The proximity switch on the left or right side is triggered, and the reset solenoid valve is connected to its corresponding coil. Compressed air can then be injected in the corresponding direction through the control system, pushing the piston rod to move. The reset push rod on the piston rod drives the laser head on the front anti-collision plate to reset. Attached Figure Description

[0023] Figure 1 A three-dimensional structural diagram of the overall assembly of the self-resetting multi-directional backplate anti-collision protection device of this utility model;

[0024] Figure 2 Front view of the overall assembly of the self-resetting multi-directional backplate anti-collision protection device of this utility model. Figure 1 ;

[0025] Figure 3 This is a partial assembly cross-sectional view of the self-resetting multi-directional backplate anti-collision protection device of this utility model;

[0026] Figure 4 A partial sectional view of the front of the self-resetting multi-directional backplate anti-collision protection device of this utility model.

[0027] Figure 5 This is a partial sectional view of the left side of the self-resetting multi-directional backplate anti-collision protection device assembly of this utility model.

[0028] Figure 6 Front view of the assembly of the self-resetting multi-directional backplate anti-collision protection device of this utility model. Figure 2 ;

[0029] Figure 7 This is a schematic diagram of the working displacement of the self-resetting multi-directional backplate anti-collision protection device of this utility model;

[0030] In the diagram: 1-Mounting and fixing body, 2-Front anti-collision plate, 3-Lower limit plate, 4-Spring pull plate, 5-Buffer spring, 6-Displacement detection switch assembly, 7-Fixing nut, 8-Adsorption magnet one, 9-Adsorption magnet two, 10-Positioning bead, 11-Fastening bolt, 12-Piston rod, 13-Sealing ring, 14-Air pipe mounting seat, 15-Reset push rod, 16-Left sealing plate, 17-Right sealing plate, 18-Switch signal connector, 19-L-shaped air pipe connector, 20-Proximity switch left, 21-Proximity switch right, 22-Sealing plate, 23-Laser head, 24-Reset solenoid valve, 25-Push rod slide groove, 26-Reset solenoid valve left coil, 27-Reset solenoid valve right coil. Detailed Implementation

[0031] The technical solution of this utility model will be further described in detail below with reference to specific embodiments.

[0032] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0033] Self-resetting multi-directional backplate anti-collision protection device, such as Figures 1 to 7As shown, the system includes: a front bumper plate-2 installed on the front end face of the mounting and fixing body-1, a fastening bolt-11 installed on the front bumper plate-2, the fastening bolt-11 being connected to a spring pull plate-4, the spring pull plate-4 being installed at the rear end of a buffer spring-5 inside the mounting and fixing body-1, and being tightened and partially compressed by the fastening bolt-11; a slope is provided at the lower end of the countersunk hole of the fastening bolt-11 on the front bumper plate-2; when an impact accident occurs, the front bumper plate-2 disengages from the positioning bead-10 installed on the mounting and fixing body-1; depending on the direction of the impact, the front bumper plate-2 swings along the upper or lower edge line, or rotates along the fastening bolt-11, compressing the buffer spring-5 by swinging or rotating to buffer the impact of the impact accident on the laser head-23.

[0034] The front end face of the mounting and fixing body-1 is provided with a countersunk hole and is equipped with an adsorption magnet 1-8 and an adsorption magnet 2-9. Positioning beads 10, which are embedded on its surface, are evenly distributed in four groups around the center of the mounting and fixing body-1. The front bumper-2 is provided with a ball hole that mates with the positioning beads 10, and its diameter is slightly larger than that of the positioning beads 10. Through the magnetic force of the adsorption magnets 1-8 and 2-9, and the tension of the buffer spring-5, the front bumper-2 and the laser head-23 mounted on it are adsorbed onto the mounting and fixing body-1 to ensure the stability of the laser head-23 during operation and to avoid affecting processing accuracy.

[0035] The rear end face of the mounting and fixing body-1 is provided with countersunk holes and threaded holes, and a displacement detection switch assembly-6 is installed thereon. A fixing nut-7 is installed at the tail of the displacement detection switch assembly-6 to fix the detection position of the displacement detection switch assembly-6. At the same time, the impact detection accuracy of the self-resetting multi-directional backplate anti-collision protection device can be adjusted by adjusting the position of the displacement detection switch assembly-6. The number of displacement detection switch assemblies-6 is preferably four, and a wire groove is provided on the lower end face of the mounting and fixing body-1. The displacement detection switch assemblies-6 are interconnected and then connected to the laser equipment control system through the switch signal connector-18 installed on the upper end face of the mounting and fixing body-1. When the laser head-23 is impacted, it drives the front anti-collision plate-2 to swing or rotate, causing the displacement detection switch assembly-6 to disconnect and send a signal to the control system, and the laser equipment stops running.

[0036] The lower end face of the mounting and fixing body-1 is equipped with a lower limit plate-3, which limits the rotation of the anti-collision plate-2 before an impact accident to prevent excessive rotation angle. The rear end face of the mounting and fixing body-1 and the front end face of the front anti-collision plate-2 are equipped with sealing plates-22. The front sealing plate-22 is positioned higher than the lower limit plate-3 to prevent interference between the two when the front anti-collision plate-2 swings or rotates. The right sealing plate-16 and the left sealing plate-17 are respectively installed on both sides of the mounting and fixing body-1. The three together prevent the smoke and dust generated during the operation of the equipment from entering the device and affecting the impact detection accuracy.

[0037] The lower end of the mounting and fixing body-1 is provided with a piston rod-12. A reset push rod-15 is installed on the piston rod-12, and both ends of the piston rod-12 are slotted and fitted with sealing rings-13. Air pipe connector mounting seats-14 are installed on both sides of the mounting and fixing body-1 at positions corresponding to the piston rod-12. L-shaped air pipe connectors-19 are installed on the air pipe connector mounting seats-14. Proximity switches left-20 and right-21 are respectively installed on the upper parts of both sides of the mounting and fixing body-1, and are respectively connected to the right coil-27 and left coil-26 of the external reset solenoid valve-24. The reset solenoid valve-24 is connected to the... In the optical equipment control system, after a collision, the impact swing in the front-to-back direction is pulled back to its original position by the buffer spring-5, and the impact in the left-to-right direction causes the laser head-23 to rotate the front anti-collision plate-2. The triggering of the proximity switch left-20 or the proximity switch right-21 connects the reset solenoid valve-24 with its corresponding right coil-27 or left coil-26. Then, the control system can charge compressed air in the direction corresponding to the cylinder hole inside the mounting and fixing body-1, pushing the piston rod-12 to move. The reset push rod-15 on the piston rod-12 pushes the inner side of the push rod slide groove-25 on the front anti-collision plate-2, causing the front anti-collision plate-2 to rotate and drive the laser head-23 to reset.

[0038] Working principle:

[0039] The self-resetting multi-directional backplate anti-collision protection device is fixed to the laser machine tool by the mounting and fixing body-1. The laser head-23 is installed on the front anti-collision plate-2. When the laser equipment is working normally, the fastening bolt-11 tightens the spring pull plate-4 until its end face is flush with the rear end face of the mounting and fixing body-1, and the compression spring-5 is partially compressed. The magnetic attraction of the first attraction magnet-8 and the second attraction magnet-9, under the action of magnetic force and spring force, the front anti-collision plate-2 is attracted to the mounting and fixing body-1. Through the spherical fit between the two and the role of the positioning bead-10, the stability of the laser head-23 installed on the front anti-collision plate-2 is ensured during operation, so as to prevent the present invention from affecting the accuracy of laser processing.

[0040] When the laser head-23 encounters an impact, the front anti-collision plate-2 detaches from the positioning bead-10 installed on the mounting and fixing body-1 and is lifted up. Depending on the direction of the impact, the front anti-collision plate-2 swings along the upper or lower edge or rotates along the fastening bolt-11. By swinging and rotating, it compresses the buffer spring-5 to buffer the impact of the impact on the laser head-23. At the same time, after the front anti-collision plate-2 is lifted up by the positioning bead, the displacement detection switch assembly-6 is disconnected and sends a signal to the laser equipment control system. The laser equipment immediately stops operating to prevent secondary damage to the laser head-23.

[0041] The proximity switch left-20, installed on the upper left side of the mounting body-1, is connected to the right coil-27 of the reset solenoid valve-24. The proximity switch right-21, installed on the upper right side of the mounting body-1, is connected to the left coil-26 of the reset solenoid valve-24. When an impact occurs, a front-to-back impact causes the front bumper-2 to swing along its upper or lower edge. After the impact is eliminated, it is pulled back to its original position by the buffer spring-5. A left-to-right impact causes the laser head-23 to rotate the front bumper-2, triggering either the proximity switch left-20 or the proximity switch right-21, thus activating the reset solenoid valve. When the right coil-27 or left coil-26 corresponding to 24 is turned on, compressed air can be injected into the direction corresponding to the cylinder hole inside the mounting body-1 through the control system, pushing the piston rod-12 to move. The reset push rod-15 on the piston rod-12 pushes the inner side of the push rod slide groove-25 on the anti-collision plate, causing the front anti-collision plate to rotate and drive the laser head-23 to reset. When the reset is completed, the proximity switch left-20 or proximity switch right-21 is turned off, and the right coil-27 or left coil-26 on the corresponding reset solenoid valve-24 is also turned off, and the piston rod-12 stops moving. Example

[0042] When the self-resetting multi-directional backplate anti-collision protection device encounters an impact accident in the left or right direction, the laser head-23 is subjected to the impact force from the left or right, causing the front anti-collision plate-2 to rotate left or right around the fastening bolt-11. The front anti-collision plate-2 is dislodged from the positioning bead-10 and lifted up. The fastening bolt-11 pulls the spring plate-4 to compress the buffer spring-5. At the same time, after the front anti-collision plate-2 is lifted up by the positioning bead-10, the position detection switch assembly-6 no longer contacts the front anti-collision plate-2, disconnects the connection, and immediately sends a signal to the laser equipment control system. The laser equipment stops running to prevent secondary damage to the laser head.

[0043] Upon impact from the right, the front bumper-2 rotates clockwise, causing the inner right side of the push rod groove-25 below it to push the reset push rod-15 to the left, which in turn moves the piston rod-12 to the left. This triggers the right-side proximity switch-21 mounted on the upper right side of the mounting body-1, activating the left coil-26 of its corresponding reset solenoid valve-24. The reset solenoid valve-24 is connected to the laser equipment control system. After eliminating the impact factor, compressed air can be injected into the left side of the cylinder bore at the bottom of the mounting body-1 via the control system. The piston rod-12 is pushed to the right, which in turn moves the reset push rod-15 to the right. The reset push rod-15 acts on the right inner side of the push rod groove-25 at the lower end of the front bumper-2, causing the front bumper-2 to rotate counterclockwise, so that the laser head-23 rotates back to its original position. After it is reset, the right proximity switch-21 is disconnected, and the left coil-26 of the reset solenoid valve-24 connected to it is also disconnected. The piston rod-12 stops moving, and the accuracy of the laser head-23 reset is ensured by the cooperation between the ball hole on its surface and the positioning bead-10.

[0044] When a collision occurs from the left, the front bumper-2 rotates counterclockwise. The inner left side of the push rod groove-25 below it pushes the reset push rod-15 to the right, causing the piston rod-12 to move to the right. This triggers the left-side proximity switch-20 on the upper left side of the mounting body-1, activating the right coil-27 of its corresponding reset solenoid valve-24. The reset solenoid valve-24 is connected to the laser equipment control system. After eliminating the impact factor, compressed air can be injected into the right side of the lower cylinder bore of the mounting body-1 via the control system. The piston rod-12 is pushed to the left, which in turn moves the reset push rod-15 to the left. The reset push rod-15 acts on the left inner side of the push rod groove-25 at the lower end of the front bumper-2, causing the front bumper-2 to rotate clockwise, so that the laser head-23 rotates back to its original position. After it is reset, the proximity switch left-20 is disconnected, and the right coil-27 of the reset solenoid valve-24 connected to it is also disconnected. The piston rod-12 stops moving, and the accuracy of the laser head-23 reset is ensured by the cooperation between the ball hole on its surface and the positioning bead-10.

[0045] The self-resetting design reduces human intervention, prevents personal injury, and improves safety. Example

[0046] When the self-resetting multi-directional backplate anti-collision protection device encounters a front-to-back impact, the laser head-23 is subjected to the impact force from the front or rear, causing the front anti-collision plate-2 to swing along the upper or lower edge. The fastening bolt-11 tilts and moves outward in the mounting hole of the front anti-collision plate-2, causing the spring pull plate-4 to compress the buffer spring-5 to buffer the impact on the laser head-23. At the same time, the position detection switch assembly-6 is no longer in contact with the front anti-collision plate-2, disconnects the connection, and immediately sends a signal to the laser equipment control system, stopping the laser equipment from operating and preventing secondary damage to the laser head. After the impact factor is eliminated, the front anti-collision plate-2, under the action of the buffer spring-5, the first adsorption magnet-8, and the second adsorption magnet-9, re-attaches to the mounting and fixing body-1, and the laser head-23 returns to its original position.

[0047] When the laser head-23 is impacted from below, the front bumper-2 slides upward and disengages from the spherical recess and positioning bead-10 on the mounting body-1. The fastening bolt-11 tilts and moves upward within the mounting hole of the front bumper-2, pulling the spring plate-4 to compress the buffer spring-5 to cushion the impact on the laser head-23. At the same time, the position detection switch assembly-6 is no longer in contact with the front bumper-2, disconnects, and immediately sends a signal to the laser equipment control system, stopping the laser equipment from operating and preventing secondary damage to the laser head-23. After the impact factor is eliminated, the laser head-23 resets.

[0048] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A self-resetting multi-directional backplate anti-collision protection device, characterized in that, include: A front bumper plate (2) is installed on the front end face of the mounting and fixing body (1). A fastening bolt (11) is installed on the front bumper plate (2). The fastening bolt (11) is connected to a spring pull plate (4). The spring pull plate (4) is installed at the rear end of the buffer spring (5) inside the mounting and fixing body (1). The buffer spring (5) is tightened and compressed by the fastening bolt (11). The front end face of the mounting and fixing body (1) is provided with a countersunk hole and is equipped with an adsorption magnet one (8) and an adsorption magnet two (9). Positioning beads (10) that cooperate with the front bumper plate (2) are embedded on its surface. The positioning beads (10) are evenly distributed in four groups around the center of the mounting and fixing body (1). The rear end face of the mounting and fixing body (1) is provided with a countersunk hole and a threaded hole and is equipped with a displacement detection switch assembly (6). A fixing nut (7) is installed at the tail of the displacement detection switch assembly (6). The rear end face of the mounting and fixing body (1) is connected to the front end face of the front bumper plate (2). A sealing plate (22) is installed on the surface, and a right sealing plate (16) and a left sealing plate (17) are respectively installed on both sides of the mounting and fixing body (1); a piston rod (12) is provided inside the lower end of the mounting and fixing body (1), a reset push rod (15) is installed on the piston rod (12), and the piston rod (12) has grooves at both ends and sealing rings (13) are installed. Air pipe connector mounting seats (14) are installed on both sides of the mounting and fixing body (1) at the positions corresponding to the piston rod (12), and L-shaped air pipe connectors (19) are installed on the air pipe connector mounting seats (14). A proximity switch left (20) and a proximity switch right (21) are installed on the upper part of both sides of the mounting and fixing body (1), and the two are connected to an external reset solenoid valve (24). The upper end face of the mounting and fixing body (1) is provided with a threaded hole and a switch signal connector (18) is installed. The reset solenoid valve (24) and the switch signal connector (18) are connected to the laser equipment control system.

2. The self-resetting multi-directional backplane anti-collision protection device according to claim 1, characterized in that: The mounting and fixing body (1) has a spherical concave hole at its center and the front anti-collision plate (2) has a spherical protrusion that matches it. The spherical fit between the two allows the front anti-collision plate (2) to rotate or swing on the mounting and fixing body (1).

3. The self-resetting multi-directional backplane anti-collision protection device according to claim 1, characterized in that: The compression of the buffer spring (5) under normal working conditions should be such that the rear end face of the spring pull plate (4) does not protrude from the rear end face of the mounting and fixing body (1), so that the front end face of the fixing body (1) is in close contact with the front bumper plate (2), and the tension generated by the compression of the buffer spring (5) can pull the front bumper plate (2) back to its original position when it swings.

4. The self-resetting multi-directional backplane anti-collision protection device according to claim 1, characterized in that: The lower right limit plate (3) is installed on the lower end face of the mounting and fixing body (1) to limit the rotation angle of the front anti-collision plate.

5. The self-resetting multi-directional backplane anti-collision protection device according to claim 4, characterized in that: The sealing plate (22) is positioned higher than the lower limit plate (3) to prevent interference between the two when the front bumper plate (2) swings or rotates.

6. The self-resetting multi-directional backplane anti-collision protection device according to claim 1, characterized in that: The rear end face of the mounting and fixing body (1) is provided with a wire groove for connecting the switch signal connector (18) and the displacement detection switch assembly (6).

7. The self-resetting multi-directional backplane anti-collision protection device according to claim 1, characterized in that: The front bumper plate (2) is provided with a ball hole that mates with the positioning bead (10), and the diameter of the ball hole is slightly larger than the diameter of the positioning bead (10).

8. The self-resetting multi-directional backplane anti-collision protection device according to claim 1, characterized in that: The front bumper (2) has a conical surface at the far end of the mounting hole for the fastening bolt (11). When an impact accident occurs, the front bumper (2) can swing relative to the mounting and fixing body (1).

9. The self-resetting multi-directional backplane anti-collision protection device according to claim 1, characterized in that: The right proximity switch (21) installed on the right side of the mounting and fixing body (1) is connected to the left coil (26) of the reset solenoid valve (24), and the left proximity switch (20) installed on the left side of the mounting and fixing body (1) is connected to the right coil (27) of the reset solenoid valve (24).

10. The self-resetting multi-directional backplane anti-collision protection device according to claim 1, characterized in that: The lower end of the front anti-collision plate (2) is provided with a push rod groove (25). When an impact accident occurs, the reset push rod (15) installed on the piston rod (12) pushes the inner side of the push rod groove (25) to drive the front anti-collision plate (2) to rotate, so that the laser head (23) is reset.

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