Anti-collision mechanism
By introducing an anti-collision mechanism consisting of a base plate, guide rail, slider, collision balancing module, and detection module onto the cutting machine, and combining physical and electronic anti-collision functions, the collision risk caused by the failure of the laser rangefinder in existing technologies is solved, achieving dual anti-collision protection and improving the reliability and market competitiveness of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG GUANGSU INTELLIGENT TECH CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-06-09
AI Technical Summary
The existing anti-collision structure of double-beam anti-collision cutting equipment relies on laser rangefinders, which may lead to the risk of physical collisions due to inaccurate detection of the distance between moving beams when mismeasured or damaged.
It adopts an anti-collision mechanism that includes a base plate, guide rail, slider, collision balance module, collision connection plate, and detection module. It combines physical and electronic anti-collision functions and achieves dual anti-collision through tension springs and proximity switches to ensure effective anti-collision even if any one of them fails.
It achieves dual protection of physical and electronic anti-collision, ensuring that the cutting machine can still effectively prevent collisions with the moving crossbeam even if any anti-collision function fails, thus improving the reliability and market competitiveness of the equipment.
Smart Images
Figure CN224333716U_ABST
Abstract
Description
Technical fields:
[0001] This utility model relates to the field of anti-collision technology, and specifically to an anti-collision mechanism for a cutting machine. Background technology:
[0002] With the development of modern machining industry, the requirements for cutting quality and precision are constantly increasing, as are the requirements for improving production efficiency, reducing production costs, and having highly intelligent automatic cutting functions.
[0003] Application No. 202111649869.5 discloses a double-beam anti-collision cutting device, which includes a base, a shock-absorbing seat structure, a cutting frame, a moving crossbeam, and an anti-collision structure. The shock-absorbing seat structure is installed on the upper surface of the base. There are two cutting frames and two moving crossbeams. The two cutting frames are installed on the top of the shock-absorbing seat structure. The two moving crossbeams are respectively installed on the top of the two cutting frames. The two moving crossbeams are respectively connected to a drive mechanism. The two cutting frames are integrated into one unit. The anti-collision structure is installed on the two moving crossbeams. The anti-collision structure includes two laser ranging devices, which are fixedly installed on the two moving crossbeams. This allows for precise measurement of the distance between the two moving crossbeams as they move, driving the laser cutting mechanism. When the distance between the two moving crossbeams approaches 1000 mm, the external programmable display control device adjusts the speed of the two moving crossbeams, reducing it to half its original speed. When the distance approaches 600 mm, the speed is further reduced to one-third of its original speed. If the distance continues to approach 500 mm, the machine will stop and an alarm will sound. The operator must manually increase the distance between the two moving crossbeams to over 1000 mm to resume automatic operation, thus preventing collision damage to the two moving crossbeams.
[0004] In other words, the anti-collision structure of the aforementioned double-beam anti-collision cutting equipment uses two laser rangefinders in conjunction with a programmable display control device to control the moving speed of the two moving beams and stop their movement when a collision is imminent. This is only an electronic collision detection method and cannot result in a physical collision. If the laser rangefinders malfunction or are damaged, they will be unable to accurately detect the distance between the two moving beams, posing a risk of direct collision and damage, causing great inconvenience to the user.
[0005] In view of the above, the inventors propose the following technical solution. Utility Model Content:
[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide an anti-collision mechanism.
[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The anti-collision mechanism includes: a base plate, on which a horizontally distributed guide rail is provided, and a slidable slider is provided on the guide rail; a collision balancing module, which includes a first tension spring and a second tension spring, the two ends of the first tension spring being connected to the left side of the guide rail and the left side of the slider respectively, and the two ends of the second tension spring being connected to the right side of the guide rail and the right side of the slider respectively, the slider being balanced and positioned with the guide rail under the elastic tension of the first tension spring and the second tension spring; a collision connecting plate, which is fixed to the upper end of the slider, and a first anti-collision block and a second anti-collision block are fixedly connected to both sides of the collision connecting plate respectively; and a detection module, which is installed at the lower end of the base plate and located below the collision connecting plate to detect the movement position of the collision connecting plate.
[0008] Furthermore, in the above technical solution, a first receiving groove and a second receiving groove are respectively provided on both sides of the slider, one end of the first tension spring is received in the first receiving groove, and one end of the second tension spring is received in the second receiving groove.
[0009] Furthermore, in the above technical solution, a first screw and a second screw are respectively provided on the first receiving groove and the second receiving groove; the first hook at one end of the first tension spring hooks the first screw; and the second hook at one end of the second tension spring hooks the second screw.
[0010] Furthermore, in the above technical solution, a third screw and a fourth screw are respectively provided on both sides of the guide rail, the third hook at the other end of the first tension spring hooks the third screw, and the fourth hook at the other end of the second tension spring hooks the fourth screw.
[0011] Furthermore, in the above technical solution, the detection module includes a bracket fixed to the lower front side of the base plate, a proximity switch mounted on the bracket, and an opening located at the lower end of the collision connection plate and adapted to the proximity switch, with the proximity switch facing the opening.
[0012] Furthermore, in the above technical solution, the bracket is installed on the lower front side of the base plate in an adjustable horizontal position. The bracket is L-shaped and has a strip hole. Screws pass through the strip hole and are screwed to the lower front side of the base plate to form an adjustable structure.
[0013] Furthermore, in the above technical solution, the collision connecting plate is also provided with receiving holes, and the first tension spring and the second tension spring are both received in the receiving holes.
[0014] Furthermore, in the above technical solution, an acrylic plate is also fixed to the front end of the collision connecting plate, and the acrylic plate covers the front of the first tension spring and the second tension spring.
[0015] Furthermore, in the above technical solution, a cover is also fixed to the front end of the base plate. The cover covers the guide rail, the collision balance module, the collision connecting plate and the detection module. The outer sides of the first anti-collision block and the second anti-collision block both protrude partially from the sides of the cover.
[0016] Furthermore, in the above technical solution, the collision connecting plate is bent on both sides to form a first bent piece and a second bent piece, and the first anti-collision block and the second anti-collision block are respectively connected to the first bent piece and the second bent piece and locked with screws. The first anti-collision block and the second anti-collision block are both made of flexible material in one piece; metal nuts are pre-embedded and fixed at the ends of the first anti-collision block and the second anti-collision block.
[0017] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: the present invention can simultaneously realize the dual anti-collision function of physical anti-collision and electronic anti-collision. Even if any one anti-collision function fails, the other anti-collision function can still take effect, thereby ensuring the realization of the anti-collision function and making the present invention highly competitive in the market. Attached image description:
[0018] Figure 1 This is a perspective view of the present invention;
[0019] Figure 2 This is a perspective view of the present invention from another angle;
[0020] Figure 3 This is an exploded view of this utility model;
[0021] Figure 4 This is a diagram of the internal structure of this utility model. Detailed implementation method:
[0022] The present invention will be further described below with reference to specific embodiments and accompanying drawings.
[0023] See Figure 1-4 The diagram shows an anti-collision mechanism comprising: a base plate 1, a collision balancing module 2, a collision connecting plate 3, and a detection module 4. This anti-collision mechanism can be used at the end of the moving crossbeam of a cutting machine (such as a laser cutting machine) to prevent collisions and protect the moving crossbeam and the cutting head mounted on it. Of course, this invention can also be used on other machines and equipment requiring anti-collision functionality.
[0024] Specifically, the base plate 1 is provided with horizontally distributed guide rails 11, and a slidable slider 12 is provided on the guide rails 11; the collision balancing module 2 includes a first tension spring 21 and a second tension spring 22, the two ends of the first tension spring 21 are respectively connected to the left side of the guide rail 11 and the left side of the slider 12, and the two ends of the second tension spring 22 are respectively connected to the right side of the guide rail 11 and the right side of the slider 12. The slider 12 is balanced and positioned with the guide rail 11 under the elastic tension of the first tension spring 21 and the second tension spring 22; the collision connecting plate 3 is fixed to the upper end of the slider 12, and a first anti-collision block 31 and a second anti-collision block 32 are respectively fixedly connected to both sides of the collision connecting plate 3; the detection module 4 is installed at the lower end of the base plate 1 and located below the collision connecting plate 3 to detect the movement position of the collision connecting plate 3.
[0025] When this utility model is used, after being installed at the end of the moving crossbeam of a cutting machine (such as a laser cutting machine), the first anti-collision block 31 and the second anti-collision block 32 protrude out of the front and rear end faces of the moving crossbeam, respectively. When the moving crossbeam moves and either the first anti-collision block 31 or the second anti-collision block 32 comes into contact with an external object and collides, the collision connecting plate 3 and the slider 12 will be driven to move left or right relative to the guide rail 11. At this time, the slider 12 will offset part of the collision force under the elastic tension of the first tension spring 21 and the second tension spring 22, that is, it achieves a certain buffering function. It reduces the collision force through physical structure, and the elastic tension of the first tension spring 21 and the second tension spring 22 can constrain the movement stroke of the collision connecting plate 3 and the slider 12, thereby preventing the moving crossbeam from colliding and achieving the effect of physical anti-collision. At the same time, the detection module 4 will detect the movement position of the collision connecting plate 3 in real time. When the collision connecting plate 3 is detected to have moved, it will directly send a signal to the cutting machine (such as a laser cutting machine), and the cutting machine (such as a laser cutting machine) will control the moving crossbeam to stop moving in time, thereby achieving the purpose of electronic anti-collision. In other words, this utility model can simultaneously achieve dual anti-collision functions of physical and electronic anti-collision. Even if one anti-collision function fails, the other anti-collision function can still take effect, thereby ensuring the realization of the anti-collision function and making this utility model highly competitive in the market.
[0026] To make the thickness of this utility model thinner, the following design is also made: a first receiving groove 121 and a second receiving groove 122 are respectively provided on both sides of the slider 12. One end of the first tension spring 21 is received in the first receiving groove 121, and one end of the second tension spring 22 is received in the second receiving groove 122. This not only reduces the space occupied by the first tension spring 21 and the second tension spring 22, especially the space in the thickness direction, but also makes the overall thickness of this utility model thinner. At the same time, the first receiving groove 121 and the second receiving groove 122 have a certain positioning / limiting effect on the first tension spring 21 and the second tension spring 22, which can improve the stability of the assembly structure.
[0027] Furthermore, the collision connecting plate 3 is also provided with receiving holes 301, in which the first tension spring 21 and the second tension spring 22 are both received, which can further reduce the space occupied by the first tension spring 21 and the second tension spring 22, especially the space in the thickness direction, which can make the overall thickness of the present invention thinner.
[0028] The first receiving groove 121 and the second receiving groove 122 are respectively provided with a first screw 123 and a second screw 124; the first hook at one end of the first tension spring 21 hooks the first screw 123; the second hook at one end of the second tension spring 22 hooks the second screw 124. In addition, a third screw 111 and a fourth screw 112 are respectively provided on both sides of the guide rail 11. The third hook at the other end of the first tension spring 21 hooks the third screw 111, and the fourth hook at the other end of the second tension spring 22 hooks the fourth screw 112, thereby making the first tension spring 21 and the second tension spring 22 stably connected between the guide rail 11 and the slider 12.
[0029] The detection module 4 includes a bracket 41 fixed to the lower front side of the base plate 1, a proximity switch 42 mounted on the bracket 41, and an opening 43 located at the lower end of the collision connecting plate 3 and adapted to the proximity switch 42. The proximity switch 42 faces the opening 43. When the proximity switch 42 is aligned with the lower end of the collision connecting plate 3 but not with the opening 43, the proximity switch 42 is triggered, sending a signal that the collision connecting plate 3 has moved. The proximity switch 42 can be a prior art product, such as the Shanghai Gong proximity switch LJ18A3-8 5-ZJ.
[0030] The bracket 41 is installed on the lower front side of the base plate 1 in an adjustable horizontal position. The bracket 41 is L-shaped and has a strip hole 411. The screw passes through the strip hole 411 and is screwed to the lower front side of the base plate 1 to form an adjustable structure. This allows for better control of the proximity switch 42 toward the opening 43, ensuring that the proximity switch 42 can be accurately triggered.
[0031] An acrylic plate 5 is also fixed to the front end of the collision connecting plate 3. The acrylic plate 5 covers the front of the first tension spring 21 and the second tension spring 22 to achieve a protective function. The acrylic plate 5 is transparent and visible, so the installation of the first tension spring 21 and the second tension spring 22 can be seen without disassembly. It is extremely convenient to use and easy to maintain.
[0032] The front end of the base plate 1 is also fixed with a cover 6, which covers the guide rail 11, the collision balance module 2, the collision connecting plate 3, and the detection module 4. The outer sides of the first anti-collision block 31 and the second anti-collision block 32 are partially protruding from both sides of the cover 6. The cover 6 achieves a protective function, which can prevent foreign objects from entering the guide rail 11, the collision balance module 2, the collision connecting plate 3, and the detection module 4, as well as the first anti-collision block 31 and the second anti-collision block 32, and thus affecting the quality or operation of the guide rail 11, the collision balance module 2, the collision connecting plate 3, and the detection module 4, as well as the first anti-collision block 31 and the second anti-collision block 32.
[0033] The collision connecting plate 3 has a first bent piece 303 and a second bent piece 304 formed by bending on both sides. The first anti-collision block 31 and the second anti-collision block 32 are respectively connected to the first bent piece 303 and the second bent piece 304 and locked with screws. The first anti-collision block 31 and the second anti-collision block 32 are both made of flexible material in one piece, which can better realize the anti-collision function. Metal nuts are pre-embedded and fixed at the ends of the first anti-collision block 31 and the second anti-collision block 32 to ensure structural strength, so as to ensure that the first anti-collision block 31 and the second anti-collision block 32 can be installed more stably on both sides of the collision connecting plate 3, thereby improving product quality.
[0034] In summary, this utility model can simultaneously achieve dual anti-collision functions of physical and electronic anti-collision. Even if one anti-collision function fails, the other anti-collision function can still take effect, thereby ensuring the realization of the anti-collision function and making this utility model highly competitive in the market.
[0035] Of course, the above description is only a specific embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model should be included in the scope of the claims of the present utility model.
Claims
1. A collision avoidance mechanism, characterized in that: It includes: A base plate (1) is provided with horizontally distributed guide rails (11), and a sliding slider (12) is provided on the guide rails (11); The collision balancing module (2) includes a first tension spring (21) and a second tension spring (22). The two ends of the first tension spring (21) are respectively connected to the left side of the guide rail (11) and the left side of the slider (12). The two ends of the second tension spring (22) are respectively connected to the right side of the guide rail (11) and the right side of the slider (12). The slider (12) is balanced and positioned with the guide rail (11) under the elastic tension of the first tension spring (21) and the second tension spring (22). The collision connecting plate (3) is fixed to the upper end of the slider (12), and the first anti-collision block (31) and the second anti-collision block (32) are fixedly connected to both sides of the collision connecting plate (3); The detection module (4) is installed at the lower end of the base plate (1) and located below the collision connecting plate (3) to detect the movement position of the collision connecting plate (3).
2. The anti-collision mechanism according to claim 1, characterized in that: The slider (12) is provided with a first receiving groove (121) and a second receiving groove (122) on both sides respectively. One end of the first tension spring (21) is received in the first receiving groove (121), and one end of the second tension spring (22) is received in the second receiving groove (122).
3. The anti-collision mechanism according to claim 2, characterized in that: A first screw (123) and a second screw (124) are respectively provided on the first receiving groove (121) and the second receiving groove (122); the first hook at one end of the first tension spring (21) hooks the first screw (123); the second hook at one end of the second tension spring (22) hooks the second screw (124).
4. The anti-collision mechanism according to claim 3, characterized in that: The guide rail (11) is provided with a third screw (111) and a fourth screw (112) on both sides respectively. The third hook at the other end of the first tension spring (21) hooks the third screw (111), and the fourth hook at the other end of the second tension spring (22) hooks the fourth screw (112).
5. The anti-collision mechanism according to claim 1, characterized in that: The detection module (4) includes a bracket (41) fixed to the lower front end of the base plate (1), a proximity switch (42) mounted on the bracket (41), and an opening (43) located at the lower end of the collision connection plate (3) and adapted to the proximity switch (42), with the proximity switch (42) facing the opening (43).
6. The anti-collision mechanism according to claim 5, characterized in that: The bracket (41) is installed on the lower front end of the base plate (1) in an adjustable horizontal position. The bracket (41) is L-shaped and has a strip hole (411). Screws pass through the strip hole (411) and are screwed to the lower front end of the base plate (1) to form an adjustable structure.
7. The anti-collision mechanism according to any one of claims 1-6, characterized in that: The collision connecting plate (3) is also provided with a receiving hole (301), in which the first tension spring (21) and the second tension spring (22) are both received.
8. The anti-collision mechanism according to claim 7, characterized in that: The front end of the collision connecting plate (3) is also fixed with an acrylic plate (5), which covers the front of the first tension spring (21) and the second tension spring (22).
9. The anti-collision mechanism according to any one of claims 1-6, characterized in that: The front end of the base plate (1) is also fixed with a cover (6), which covers the guide rail (11), the collision balance module (2), the collision connecting plate (3) and the detection module (4). The outer sides of the first anti-collision block (31) and the second anti-collision block (32) are partially protruding from both sides of the cover (6).
10. The anti-collision mechanism according to claim 9, characterized in that: The collision connecting plate (3) is bent on both sides to form a first bent piece (303) and a second bent piece (304). The first anti-collision block (31) and the second anti-collision block (32) are respectively connected to the first bent piece (303) and the second bent piece (304) and locked with screws. The first anti-collision block (31) and the second anti-collision block (32) are both made of flexible material in one piece. Metal nuts are pre-embedded and fixed at the ends of the first anti-collision block (31) and the second anti-collision block (32).