Self-resetting multidirectional backboard anti-collision protection device
Through the self-reset multi-directional backplate anti-collision protection device, the buffering spring, magnet and positioning beads are used to buffer the impact, and the laser head is automatically reset by compressed air and piston rod, the laser head is solved, and the processing accuracy and production efficiency are improved.
Patent Information
- Application Number
- CN202510883597.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-29
- Publication Date
- 2025-08-08
AI Technical Summary
Laser cutting heads are susceptible to collision damage during processing, resulting in high equipment maintenance costs, reduced processing accuracy and affecting production efficiency.
A self-reset multi-directional backplate anti-collision protection device is designed, and the buffering spring, adsorption magnet and positioning beads are used to buffer the impact, and the laser head is automatically reset by combining compressed air and piston rod, and automatic protection is achieved through the displacement detection switch assembly and solenoid valve control system.
Effectively buffer the collision damage of laser heads, ensure processing accuracy and equipment stability, reduce manual intervention, and improve safety and production efficiency.
Smart Images
Figure CN120438873A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of laser cutting and welding, and in particular to a self-resetting multi-directional anti-collision protection device. Technical Background
[0002] Nowadays, with the development of science and technology and productivity, lasers have been widely used in mechanical processing, manufacturing and other industries. The principle is to use auxiliary gas and laser cutting technology to focus a high-energy-density laser beam on the surface of the workpiece 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 precision, efficiency and versatility.
[0003] However, during laser cutting operations, the core component of the laser equipment, the laser head, needs to be close to the workpiece for processing. However, due to the internal stress of the workpiece, which causes warping after cutting, thermal deformation of the steel plate, the variety of plate types and thickness specifications, the diversity of cutting parts, and manual operation, the laser head is prone to collision accidents, resulting in injury or even damage to the laser head. Moreover, as the core component of the laser equipment, the laser head is expensive to repair or replace, and the after-sales service time is long, which not only delays the company's daily production, but also easily affects the processing accuracy of the laser equipment.
[0004] Based on the current status of the industry, the present invention is proposed here, which is a self-resetting multi-directional backplate anti-collision protection device for a laser cutting head. It uses internal springs to cushion the damage caused by collision accidents, magnets and positioning beads to ensure the stability and accuracy of operation, and compressed air and piston rods to automatically reset the laser head after a collision accident. Summary of the Invention
[0005] The present invention aims to solve the pain point in the current laser cutting industry that the laser head is easily damaged by collision, and thus proposes a self-resetting multi-directional backplane anti-collision protection device.
[0006] To solve the pain points in the above industries, the present invention uses the following technical solutions:
[0007] The self-resetting multi-directional backplate anti-collision protection device comprises: a front anti-collision plate is installed on the front end surface of the mounting and fixing body, the front anti-collision plate is installed with a fastening bolt, the fastening bolt is connected to the spring pull plate, the spring pull plate is installed on the rear end of the buffer spring inside the mounting and fixing body, and the buffer spring is tightened and compressed by the fastening bolt. The front end surface of the mounting and fixing body is provided with a countersunk hole and is installed with an adsorption magnet one and an adsorption magnet two, and positioning beads that cooperate with the front anti-collision plate are embedded on its surface, and the positioning beads are evenly distributed in four groups around the center of the mounting and fixing body in a circle, the rear end surface of the mounting and fixing body is provided with a countersunk hole and a threaded hole and is installed with a displacement detection switch assembly, and a fixing nut is installed at the tail of the displacement detection switch assembly. The rear end surface of the mounting and fixing body and the front end surface of the front anti-collision plate are installed with a sealing plate, and a right sealing plate and a left sealing plate are respectively installed on both sides of the mounting and fixing body;
[0008] A piston rod is provided inside the lower end of the mounting and fixing body, a reset push rod is installed on the piston rod, and grooves are opened at both ends of the piston rod and sealing rings are installed thereon, trachea joint mounting seats are installed at positions corresponding to the piston rods on both sides of the mounting and fixing body, an L-shaped trachea joint is installed on the trachea joint mounting seat, and a right proximity switch and a left proximity switch are respectively installed on the upper parts of both sides of the mounting and fixing body, both of which are connected to an external reset solenoid valve, a threaded hole is provided on the upper end face of the mounting and fixing body and a switch signal connector is installed thereon, and the reset solenoid valve and the switch signal connector are connected to the laser equipment control system.
[0009] As a preferred embodiment of the present invention, a spherical concave hole is provided at the center of the mounting and fixing body, and a spherical boss is provided on the front bumper plate to match the concave hole. The spherical fit between the two allows the front bumper plate to rotate or swing on the mounting and fixing body.
[0010] As a preferred embodiment of the present invention: the compression amount 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 installation fixed body, so that the front end face of the fixed body is tightly fitted 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 the front bumper plate swings.
[0011] As a preferred embodiment of the present invention, a right lower limit plate is installed on the lower end surface of the mounting and fixing main body to limit the rotation angle of the front bumper plate.
[0012] As a preferred embodiment of the present invention, the front end sealing plate is positioned higher than the lower limit plate to prevent interference between the front anti-collision plate and the lower limit plate when the front anti-collision plate swings or rotates.
[0013] As a preferred embodiment of the present invention, a wire groove for connecting the switch signal connector and the displacement detection switch assembly is provided on the rear end surface of the mounting and fixing body.
[0014] As a preferred embodiment of the present invention, a ball hole cooperating with the positioning bead is provided on the front anti-collision plate, and the diameter of the ball hole is slightly larger than the diameter of the positioning bead.
[0015] As a preferred embodiment of the present invention, a conical surface is provided at the distal end of the fastening bolt mounting hole on the front bumper plate, so that the front bumper plate can swing relative to the mounting fixed body when a collision accident occurs.
[0016] As a preferred embodiment of the present invention: the right proximity switch installed on the right side of the fixing body is connected to the left coil of the reset solenoid valve, and the left proximity switch installed on the left side of the fixing body is connected to the right coil of the reset solenoid valve.
[0017] As a preferred embodiment of the present invention, a push rod slot is provided at the lower end of the front anti-collision plate. When a collision accident occurs, a reset push rod installed on the piston rod pushes the inner side of the push rod slot to drive the front anti-collision plate to rotate and reset the laser head.
[0018] The beneficial effects of the present invention are:
[0019] Strong adaptability: The position and size of the mounting hole of this self-resetting multi-directional backplate anti-collision protection device can be changed with the hole position of the laser head, and can be installed and used without changing the hole size of the original equipment.
[0020] Multi-directional anti-collision protection: The fixed body installed in the self-resetting multi-directional back plate anti-collision protection device is matched with the front anti-collision plate through a spherical surface, 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 impacts from all directions and, at the same time, turning the original hard impact into soft contact.
[0021] Collision alarm mechanism: When the self-resetting multi-directional backplate anti-collision protection device is working normally, the displacement detection switch component installed in the mounting fixed body presses against the front anti-collision plate and is triggered. When a collision accident occurs, the front anti-collision plate is knocked open and lifted up, the displacement detection switch component is disconnected and sends an alarm signal to the control system, and the laser equipment stops running.
[0022] Self-reset design: A piston rod is provided inside the lower end of the mounting and fixing body, and a reset push rod is installed on the piston rod. After a collision accident occurs, the impact swing in the front and rear directions is pulled back to its original position by the buffer spring. The left and right collisions cause the laser head to drive the front bumper plate to rotate. The left or right proximity switch is triggered, and the reset solenoid valve is connected to its corresponding coil. Then, compressed air can be filled in the corresponding direction through the control system to push the piston rod to move. The reset push rod on the piston rod drives the laser head on the front bumper plate to reset. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 A schematic diagram of the three-dimensional structure of the self-resetting multi-directional back plate anti-collision protection device of the present invention;
[0024] Figure 2 The self-resetting multi-directional back plate anti-collision protection device of the present invention is assembled in the front view Figure 1 ;
[0025] Figure 3 This is a partial assembly cross-sectional view of the self-resetting multi-directional back plate anti-collision protection device of the present invention;
[0026] Figure 4 This is a partial sectional view of the front of the partially assembled self-resetting multi-directional back plate anti-collision protection device of the present invention;
[0027] Figure 5 A partial sectional view of the left side of the assembly of the self-resetting multi-directional back plate anti-collision protection device of the present invention;
[0028] Figure 6 The self-resetting multi-directional back plate anti-collision protection device of the present invention is partially assembled. Figure 2 ;
[0029] Figure 7 Schematic diagram of the working displacement of the self-resetting multi-directional back plate anti-collision protection device of the present invention;
[0030] Figure 8 Schematic diagram of the self-resetting multi-directional back plate anti-collision protection device of the present invention when it hits left and right;
[0031] Figure 9 This is a schematic diagram of the front, rear and bottom impacts of the self-resetting multi-directional backplate anti-collision protection device of the present invention.
[0032] In the figure: 1-installation 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 1, 9-adsorption magnet 2, 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, 26-reset solenoid valve left coil, 27-reset solenoid valve right coil. DETAILED DESCRIPTION
[0033] The technical solution of the present invention will be further described in detail below in conjunction with specific implementation methods.
[0034] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.
[0035] Self-resetting multi-directional back plate anti-collision protection device, such as Figures 1 to 9 As shown, it includes: 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 the 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, and the buffer spring -5 is tightened and partially compressed by the fastening bolt -11, and an inclined surface is provided at the lower end of the countersunk hole for installing the fastening bolt -11 on the front bumper plate -2. When a collision 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 collision, the front bumper plate -2 swings along the upper or lower edge line, or rotates along the fastening bolt -11, and compresses the buffer spring -5 by swinging or rotating to cushion the impact of the collision accident on the laser head -23.
[0036] The front end face of the mounting and fixing body-1 is provided with a countersunk hole and is installed with an adsorption magnet 1-8 and an adsorption magnet 2-9, and a positioning bead-10 for the front bumper plate is embedded on its surface. The positioning beads-10 are evenly distributed in four groups in a circle around the center of the mounting and fixing body-1, and a spherical hole matching the positioning bead-10 is provided on the front bumper plate-2, and the diameter of the spherical hole is slightly larger than the positioning bead-10; through the magnetic force of the adsorption magnet 1-8 and the adsorption magnet 2-9, and the pulling force of the buffer spring-5, the front bumper plate-2 and the laser head-23 installed thereon are adsorbed on the mounting and fixing body-1 to ensure the stability of the laser head-23 during operation without affecting the processing accuracy.
[0037] The rear end face of the mounting and fixing body-1 is provided with a countersunk hole and a threaded hole and is installed with a displacement detection switch assembly-6. 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 groups, 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 connected to each other and then connected through the switch signal connector-18 installed on the upper end face of the mounting and fixing body-1 to connect to the laser equipment control system. After the laser head-23 is hit, it drives the front anti-collision plate-2 to swing or rotate, so that the displacement detection switch assembly-6 is disconnected, and a signal is sent to the control system, and the laser equipment stops running.
[0038] A lower limit plate -3 is installed on the lower end face of the mounting and fixing body -1, which limits the front anti-collision plate -2 when it rotates in the event of a collision accident to prevent it from rotating at an excessively large angle; a sealing plate -22 is installed on the rear end face of the mounting and fixing body -1 and the front end face of the front anti-collision plate -2, and the front end sealing plate -22 is positioned higher than the lower limit plate -3 to prevent the two from interfering with each other when the front anti-collision plate -2 swings or rotates. A right sealing plate -16 and a left sealing plate -17 are respectively installed on both sides of the mounting and fixing body -1, and the three together prevent smoke and dust generated during the operation of the equipment from entering the device to affect the detection accuracy of the collision.
[0039] 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 the two ends of the piston rod-12 are grooved and installed with a sealing ring-13, and the two sides of the mounting and fixing body-1 are provided with a trachea joint mounting seat-14 at the position corresponding to the piston rod-12, and an L-shaped trachea joint-19 is installed on the trachea joint mounting seat-14, and the upper part of the two sides of the mounting and fixing body-1 is respectively provided with a proximity switch left-20 and a proximity switch right-21, both of which are connected to the right coil-27 and the left coil-26 of the external reset solenoid valve-24, and the reset solenoid valve-24 is connected to the excitation Optical equipment control system: after a collision accident occurs, the impact swing in the front and rear directions is pulled back to its original position by the buffer spring-5, and the left and right impacts cause the laser head-23 to drive the front bumper plate-2 to rotate. The proximity switch left-20 or the proximity switch right-21 is triggered, and the reset solenoid valve-24 is connected to its corresponding right coil-27 or left coil-26. Then, compressed air can be filled in the direction corresponding to the cylinder hole inside the fixed 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 front bumper plate-2, causing the front bumper plate-2 to rotate and drive the laser head-23 to reset.
[0040] Working principle:
[0041] The self-resetting multi-directional backplate anti-collision protection device is fixed on the laser machine tool through the installation and fixing body-1, and the laser head-23 is installed on the front anti-collision plate-2. When the laser equipment is working normally, the tightening bolt-11 tightens the spring pull plate-4 until its end face is flush with the rear end face of the installation and fixing body-1, and partially compresses the compression spring-5, as well as the magnetic adsorption of the adsorption magnet one-8 and the adsorption magnet two-9. Under the action of magnetic force and spring force, the front anti-collision plate-2 is adsorbed on the installation and fixing body-1. Through the spherical fit between the two and the action of the positioning bead-10, the stability of the laser head-23 installed on the front anti-collision plate-2 is guaranteed during operation to prevent the present invention from affecting the accuracy of laser processing.
[0042] When the laser head-23 encounters a collision accident, the front anti-collision plate-2 disengages from the positioning bead-10 installed on the fixing main body-1 and is lifted up. Depending on the direction of the collision, the front anti-collision plate-2 swings along the upper or lower edge line, or rotates along the fastening bolt-11. The buffer spring-5 is compressed by the swinging and rotation to cushion the impact of the collision accident 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 a signal is sent to the laser equipment control system. The laser equipment immediately stops running to prevent secondary damage to the laser head-23.
[0043] The left proximity switch 20 installed on the upper left side of the mounting and fixing body 1 is connected to the right coil 27 of the reset solenoid valve 24, and the right proximity switch 21 installed on the upper right side of the mounting and fixing body 1 is connected to the left coil 26 of the reset solenoid valve 24; when a collision accident occurs, the front bumper plate 2 swings along the upper or lower edge line due to the front and rear collision. After the collision factor is eliminated, the buffer spring 5 pulls it back to its original position. The left and right collisions cause the laser head 23 to drive the front bumper plate 2 to rotate, so that the left proximity switch 20 or the right proximity switch 21 is triggered, and the reset solenoid valve 24 is turned off. When the corresponding right coil 27 or left coil 26 on 24 is connected, compressed air can be filled into the direction corresponding to the cylinder hole inside the fixed 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, so that the front anti-collision plate rotates, driving the laser head 23 to reset. When the reset is completed, the left proximity switch 20 or the right proximity switch 21 is disconnected, and the right coil 27 or left coil 26 on the corresponding reset solenoid valve 24 is also disconnected, and the piston rod 12 stops moving.
[0044] Example 1
[0045] like Figure 8 As shown, when the self-resetting multi-directional backplate anti-collision protection device encounters a collision accident in the left or right direction, the laser head-23 is subjected to the impact force from the left or right, driving the front anti-collision plate-2 to rotate left or right around the fastening bolt-11, and the front anti-collision plate-2 is disengaged from the positioning bead-10 and is lifted up. The fastening bolt-11 pulls the spring pull 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 is no longer in contact with the front anti-collision plate-2, and is disconnected. It immediately sends a signal to the laser equipment control system, and the laser equipment stops running to prevent secondary damage to the laser head.
[0046] When encountering a collision accident from the right, the front anti-collision plate-2 rotates clockwise, and the right inner side of the push rod slide-25 below it pushes the reset push rod-15 to move to the left, and drives the piston rod-12 to move to the left. The right proximity switch-21 installed on the upper right side of the installation fixed body-1 is triggered, and the left coil-26 of the corresponding reset solenoid valve-24 is connected; the reset solenoid valve-24 is connected to the laser equipment control system. After eliminating the impact factor, compressed air can be filled into the left side of the cylinder hole at the lower part of the installation fixed body-1 through the control system. Push the piston rod-12 to move to the right, and drive the reset push rod-15 to move to the right. The reset push rod-15 acts on the right inner side of the push rod slide groove-25 at the lower end of the front bumper plate-2, driving the front bumper plate-2 to rotate counterclockwise, so that the laser head-23 rotates back to its original position. After its reset is completed, 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 ball hole on its surface cooperates with the positioning bead-10 to ensure the accuracy of the laser head-23 reset.
[0047] When encountering a collision accident from the left, the front anti-collision plate-2 rotates counterclockwise, and the left inner side of the push rod slide-25 below it pushes the reset push rod-15 to move to the right, and drives the piston rod-12 to move to the right. The left proximity switch-20 installed on the upper left side of the installation fixed body-1 is triggered, and the right coil-27 of the corresponding reset solenoid valve-24 is connected; the reset solenoid valve-24 is connected to the laser equipment control system. After eliminating the collision factor, compressed air can be filled into the right side of the cylinder hole at the lower part of the installation fixed body-1 through the control system. Push the piston rod-12 to move to the left, and drive the reset push rod-15 to move to the left. The reset push rod-15 acts on the left inner side of the push rod slide groove-25 at the lower end of the front bumper plate-2, driving the front bumper plate-2 to rotate clockwise, so that the laser head-23 rotates back to its original position. After its reset is completed, the left proximity switch-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 ball hole on its surface cooperates with the positioning bead-10 to ensure the accuracy of the laser head-23 reset.
[0048] The self-resetting design reduces manual intervention, prevents personal injury, and improves safety.
[0049] Example 2
[0050] like Figure 9As shown, when the self-resetting multi-directional backplate anti-collision protection device encounters a collision accident in the front and rear directions, the laser head-23 is subjected to the impact force from the front or rear, driving the front anti-collision plate-2 to swing along the upper or lower edge line, and the fastening bolt-11 tilts and moves outward in the mounting hole of the front anti-collision plate-2, driving the spring pull 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 no longer contacts the front anti-collision plate-2, is disconnected, and immediately sends a signal to the laser equipment control system, and the laser equipment stops running to prevent secondary damage to the laser head; when the impact factor is eliminated, the front anti-collision plate-2 is re-fitted with the mounting and fixing body-1 under the action of the buffer spring-5, adsorption magnet 1-8 and adsorption magnet 2-9, and the laser head-23 returns to its original position.
[0051] When the laser head-23 is hit from below, the front bumper plate-2 slides upward and disengages from the spherical recessed hole and positioning bead-10 on the mounting and fixing body-1. The fastening bolt-11 tilts and moves upward in the mounting hole of the front bumper plate-2, pulling the spring pull 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 no longer contacts the front bumper plate-2, is disconnected, and immediately sends a signal to the laser equipment control system. The laser equipment stops running to prevent secondary damage to the laser head-23. After eliminating the impact factor, the laser head-23 is reset.
[0052] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.
Claims
1. Self-resetting multi-directional back plate anti-collision protection device, characterized in that: include: The front end surface of the mounting and fixing body (1) is provided with a front anti-collision plate (2), a fastening bolt (11) is provided on the front anti-collision plate (2), the fastening bolt (11) is connected to the 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), and the buffer spring (5) is tightened and compressed by the fastening bolt (11), the front end surface of the mounting and fixing body (1) is provided with a countersunk hole and is provided with an adsorption magnet 1 (8) and an adsorption magnet 2 (9), and a magnet is embedded on its surface with the front anti-collision plate (2). The plate (2) is matched with positioning beads (10), and the positioning beads (10) are evenly distributed in four groups around the center of the mounting and fixing body (1). The rear end surface of the mounting and fixing body (1) is provided with a countersunk hole and a threaded hole and is installed with a displacement detection switch assembly (6). The tail of the displacement detection switch assembly (6) is installed with a fixing nut (7). The rear end surface of the mounting and fixing body (1) and the front end surface of the front anti-collision plate (2) are installed with a sealing plate (22), and the two sides of the mounting and fixing body (1) are respectively installed with a right sealing plate (16) and a left sealing plate (17); 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 two ends of the piston rod (12) are grooved and installed with sealing rings (13), and air pipe joint mounting seats (14) are installed on both sides of the mounting and fixing body (1) at positions corresponding to the piston rod (12), and an L-shaped air pipe joint (19) is installed on the air pipe joint mounting seat (14), and a left proximity switch (20) and a right proximity switch (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), and a threaded hole is provided on the upper end surface of the mounting and fixing body (1) and a switch signal connector (18) is installed, and 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 backplate anti-collision protection device according to claim 1, characterized in that: The center of the mounting and fixing body (1) is provided with a spherical concave hole, and the front anti-collision plate (2) is provided with a spherical boss matched therewith. The spherical matching between the two enables the front anti-collision plate (2) to rotate or swing on the mounting and fixing body (1).
3. The self-resetting multi-directional backplate anti-collision protection device according to claim 1, characterized in that: The compression amount of the buffer spring (5) in the normal working state is such that the rear end face of the spring pull plate (4) does not protrude from the rear end face of the mounting fixed body (1), so that the front end face of the fixed body (1) is closely fitted 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 backplate anti-collision protection device according to claim 1, characterized in that: A right lower limit plate (3) is installed on the lower end surface of the mounting and fixing main body (1) to limit the rotation angle of the front anti-collision plate.
5. The self-resetting multi-directional backplate anti-collision protection device according to claim 4, characterized in that: The front end sealing plate (22) is positioned higher than the lower limit plate (3) to prevent interference between the front anti-collision plate (2) and the lower limit plate (3) when the front anti-collision plate (2) swings or rotates.
6. The self-resetting multi-directional backplate anti-collision protection device according to claim 1, characterized in that: The rear end surface 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 backplate anti-collision protection device according to claim 1, characterized in that: The front anti-collision plate (2) is provided with a ball hole that matches 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 backplate anti-collision protection device according to claim 1, characterized in that: A conical surface is provided at the far end of the mounting hole of the fastening bolt (11) on the front bumper plate (2), so that the front bumper plate (2) can swing relative to the mounting fixed body (1) when a collision accident occurs.
9. The self-resetting multi-directional backplate 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 back plate 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 chute (25). When a collision accident occurs, the reset push rod (15) installed on the piston rod (12) pushes the inner side of the push rod chute (25) to drive the front anti-collision plate (2) to rotate, so that the laser head (23) is reset.