Quick replacement mechanism of laser cutting head

Abstract

The utility model relates to a kind of quick replacement mechanism of laser cutting head in the technical field of laser cutting head dismounting, including pedestal, positioning connection module, the positioning connection module includes flange, the top center of the flange is provided with taper face positioning pin, the top both sides of the flange are provided with electric ring and cooling flow channel;The bottom center of the pedestal is provided with taper positioning hole, the lower end both sides of the pedestal are respectively provided with pin and liquid cooling quick plug connector, the pin is adapted to electric ring, the liquid cooling quick plug connector is adapted to cooling flow channel;The inside both sides of the pedestal are both provided with side cavity, the inside of the side cavity is installed with top rod, the one end of top rod near flange is provided with ball, the outside of the pedestal is installed with lock ring by thread cooperation. The utility model is by taper face positioning and multi-interface synchronous docking, lock ring drives ball locking and dismounting, avoid docking deviation and locking complex problem, improve laser cutting head replacement efficiency.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting head disassembly and assembly technology, specifically to a quick replacement mechanism for a laser cutting head. Background Technology

[0002] Laser cutting equipment often requires frequent replacement of the appropriate laser cutting head according to different requirements such as the thickness and material of the processed material, in order to ensure cutting accuracy and efficiency. The performance of the replacement mechanism directly affects the overall processing rhythm and production stability of the laser cutting equipment, and is a key component for achieving flexible processing in laser cutting equipment.

[0003] In the current laser cutting head replacement process, the lack of a precise positioning structure and multi-interface synchronous docking design often requires aligning and docking the conductive and cooling interfaces one by one. This is not only cumbersome and time-consuming, but also prone to poor conductivity due to docking misalignment, affecting the stability of laser output, or causing poor sealing of the cooling channels and cooling failure, which in turn leads to overheating and damage to the cutting head. At the same time, the traditional cutting head locking method often uses complex structures such as bolt fastening and multi-clamp engagement. This not only requires the use of special tools and the locking process is time-consuming, but also requires the gradual release of the locking structure during disassembly. The overall replacement efficiency is low, resulting in excessive downtime of the laser cutting equipment and seriously affecting the production schedule. Utility Model Content

[0004] The purpose of this invention is to address the above-mentioned shortcomings and provide a quick-change mechanism for laser cutting heads. This mechanism achieves precise positioning, synchronous docking of multiple interfaces, and rapid locking and disassembly, solving the technical problems of existing technologies where docking interfaces one by one during laser cutting head replacement is time-consuming and prone to errors, and the locking and disassembly methods are complex and time-consuming.

[0005] The objective of this utility model is achieved through the following means:

[0006] A quick-change mechanism for a laser cutting head includes a base and a positioning connection module. The positioning connection module includes a flange with a conical positioning pin at the top center and conductive rings and cooling channels on both sides of the top of the flange. A conical positioning hole is located at the bottom center of the base, and the conical positioning hole is adapted to the conical positioning pin. Pins and liquid-cooled quick-connect fittings are respectively located on both sides of the lower end of the base. The pins are adapted to the conductive rings, and the liquid-cooled quick-connect fittings are adapted to the cooling channels. Side cavities are formed on both sides of the base's interior, and a push rod is installed inside each side cavity. A ball bearing is located at the end of the push rod near the flange. A locking ring is threaded onto the exterior of the base, and a slanted groove is formed at the lower end of the locking ring near the push rod. Locking grooves are formed on both sides of the flange's exterior, and the ball bearing is adapted to the locking groove.

[0007] It can achieve precise positioning through the matching of conical positioning pins and conical positioning holes. With the synchronous docking of pins and conductive rings, liquid-cooled quick connectors and cooling channels, it avoids the problem of multi-interface docking deviation. At the same time, the rotation of the locking ring drives the inclined ring groove to squeeze the top rod, so that the ball is locked into the locking groove to achieve fast and reliable locking. Reverse rotation of the locking ring can release the lock and achieve quick disassembly, effectively improving the replacement efficiency of laser cutting head and solving the problems of complex operation and long time consumption of traditional replacement methods.

[0008] Furthermore, an inner ring is installed on the outside of the push rod on the side of the side cavity away from the flange, and the inner ring is fixedly connected to the push rod; the fixed inner ring on the outside of the push rod in the side cavity can prevent the push rod from shaking, ensure stable engagement between the ball and the locking groove, and improve locking reliability.

[0009] Furthermore, a return spring is installed inside the side cavity on the side of the push rod near the flange, and the return spring is located on the side of the inner ring away from the locking ring. The return spring on the side cavity outside the push rod and on the inner ring provides a pre-pushing force, which facilitates the push rod to be pushed out during disassembly, so that the ball can be disengaged from the locking groove, simplifying the operation.

[0010] Furthermore, the locking ring is provided with levers evenly distributed along the ring on its exterior, and the levers are fixedly connected to the locking ring; the evenly distributed levers on the exterior of the locking ring facilitate manual rotation of the locking ring, and the ball bearings are pushed through the inclined ring groove to quickly complete the locking, thereby improving replacement efficiency.

[0011] Furthermore, a heat insulation layer is provided at the bottom of the flange, and the heat insulation layer is fixedly connected to the flange; the fixed heat insulation layer at the bottom of the flange can block the heat of the laser cutting head from being conducted to the flange, protect the optical system of the cutting head, and ensure its working stability.

[0012] Furthermore, indicator marks are provided at corresponding positions on the outer periphery of the flange and the bottom of the base, and the indicator marks are fixedly connected to the flange and the base respectively.

[0013] The beneficial effects of this utility model are:

[0014] This utility model achieves precise positioning and synchronous connection of multiple interfaces during laser cutting head replacement by adapting the conical positioning pin and conical positioning hole in the positioning connection module, and coordinating the synchronous docking of the pin and conductive ring, and the liquid-cooled quick-connect connector and cooling channel. This avoids poor conductivity or cooling failure caused by docking deviation and solves the problem of time-consuming and error-prone docking of interfaces one by one in traditional replacement. By rotating the locking ring, the inclined ring groove squeezes the push rod, which drives the ball to lock into the locking groove, achieving rapid mechanical locking. This is simple to operate and reliable in locking, solving the problem of complex and time-consuming traditional locking methods. By rotating the locking ring in the opposite direction, the pressure in the inclined ring groove is eliminated, and the return spring pushes out the push rod, allowing the ball to disengage from the locking groove, achieving rapid disassembly. This improves replacement efficiency and solves the problem of time-consuming laser cutting head replacement affecting production. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a quick-change mechanism for a laser cutting head according to the present invention.

[0016] Figure 2 This is a cross-sectional view of the base and flange structure of a quick-change mechanism for a laser cutting head according to this utility model;

[0017] Figure 3 This is a perspective view of the disassembled state of a quick-change mechanism for a laser cutting head according to the present invention.

[0018] In the diagram, 1. Base; 2. Conical positioning hole; 3. Pin; 4. Liquid-cooled quick-connect connector; 5. Flange; 6. Conical positioning pin; 7. Conductive ring; 8. Cooling channel; 9. Locking groove; 10. Side cavity; 11. Push rod; 12. Return spring; 13. Ball bearing; 14. Inner ring; 15. Locking ring; 16. Angled ring groove; 17. Lever; 18. Heat insulation layer; 19. Laser cutting head. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] In this embodiment, refer to Figures 1-3The present invention relates to a quick-change mechanism for a laser cutting head, comprising a base 1 and a positioning connection module. The positioning connection module includes a flange 5, with a conical positioning pin 6 at the center of the top of the flange 5, and conductive rings 7 and cooling channels 8 on both sides of the top of the flange 5. A conical positioning hole 2 is provided at the center of the bottom of the base 1, and the conical positioning hole 2 is adapted to the conical positioning pin 6. Pins 3 and liquid-cooled quick-connect connectors 4 are respectively provided on both sides of the lower end of the base 1. The pins 3 are adapted to the conductive rings 7, and the liquid-cooled quick-connect connectors 4 are adapted to the cooling channels 8. The base 1 has openings on both sides inside. The system includes a side cavity 10, inside which a push rod 11 is installed. A ball bearing 13 is located at one end of the push rod 11 near the flange 5. A locking ring 15 is installed on the outside of the base 1 via a threaded connection. An oblique annular groove 16 is formed at the lower end of the locking ring 15 near the outside of the push rod 11. Locking grooves 9 are provided on both sides of the outside of the flange 5, and the ball bearing 13 is adapted to the locking groove 9. The tapered positioning hole 2 of the base 1 is adapted to the tapered positioning pin 6 of the flange 5. The pin 3 is connected to the conductive ring 7, and the liquid-cooled quick-connect connector 4 is connected to the cooling channel 8 to achieve automatic alignment, ensure consistent focus, and avoid leakage and misalignment.

[0021] like Figure 2 As shown, an inner ring 14 is installed on the outside of the push rod 11 on the side of the side cavity 10 away from the flange 5, and the inner ring 14 is fixedly connected to the push rod 11; the fixed inner ring 14 on the outside of the push rod 11 in the side cavity 10 can prevent the push rod 11 from shaking, ensure that the ball 13 and the locking groove 9 are stably matched, and improve the locking reliability.

[0022] like Figure 2 As shown, a return spring 12 is installed inside the side cavity 10 on the side of the outside of the push rod 11 near the flange 5, and the return spring 12 is located on the side of the outside of the inner ring 14 away from the locking ring 15; the return spring 12 on the outside of the push rod 11 and on the side of the inner ring 14 inside the side cavity 10 provides a pre-pushing force, which facilitates the push rod 11 to be pushed out during disassembly, so that the ball 13 is disengaged from the locking groove 9, simplifying the operation.

[0023] like Figure 1 and Figure 2 As shown, the locking ring 15 is provided with levers 17 evenly distributed along the ring on the outside, and the levers 17 are fixedly connected to the locking ring 15; the levers 17 evenly distributed on the outside of the locking ring 15 facilitate manual rotation of the locking ring 15, and push the ball 13 through the inclined ring groove 16 to quickly complete the locking and improve the replacement efficiency.

[0024] like Figure 1 and Figure 3 As shown, a heat insulation layer 18 is provided at the bottom of the flange 5, and the heat insulation layer 18 is fixedly connected to the flange 5; the fixed heat insulation layer 18 at the bottom of the flange 5 can block the heat of the laser cutting head 19 from being conducted to the flange 5, protect the optical system of the cutting head, and ensure its working stability.

[0025] like Figure 1 and Figure 3 As shown, indicator marks are provided at corresponding positions on the outer periphery of flange 5 and the bottom of base 1, and the indicator marks are fixedly connected to flange 5 and base 1 respectively; the fixed indicator marks on the outer periphery of flange 5 and the bottom of base 1 provide visual alignment reference, quickly align the two, shorten installation time, and ensure installation accuracy.

[0026] The working principle of the quick-change mechanism for a laser cutting head in this embodiment is as follows: During installation, align the conical positioning pin 6 of the flange 5 with the conical positioning hole 2 of the base 1, and align it according to the indicator mark so that the pin 3 of the base 1 and the conductive ring 7 of the flange 5, and the liquid-cooled quick-connect connector 4 and the cooling channel 8 are synchronously connected; rotate the lever 17 outside the locking ring 15 to drive the locking ring 15 to rotate, and the inclined ring groove 16 inside it squeezes the push rod 11, so that the ball 13 is locked into the locking groove 9 of the flange 5, completing the mechanical locking; during disassembly, rotate the locking ring 15 in the opposite direction, the pressure of the inclined ring groove 16 disappears, the return spring 12 pushes out the push rod 11, and the ball 13 disengages from the locking groove 9, so that the flange 5 with the heat insulation layer 18 can be removed, realizing the quick replacement of the cutting head.

[0027] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A quick-change mechanism for a laser cutting head, comprising a base and a positioning connection module, characterized in that: The positioning and connection module includes a flange with a conical positioning pin at the top center and conductive rings and cooling channels on both sides of the top of the flange. A conical positioning hole is located at the bottom center of the base, and the conical positioning hole is adapted to the conical positioning pin. Pins and liquid-cooled quick-connect fittings are respectively located on both sides of the lower end of the base. The pins are adapted to the conductive rings, and the liquid-cooled quick-connect fittings are adapted to the cooling channels. Side cavities are formed on both sides of the base's interior, and a push rod is installed inside each side cavity. A ball bearing is located at the end of the push rod near the flange. A locking ring is installed on the outside of the base via a threaded connection. An oblique annular groove is formed at the lower end of the locking ring near the outside of the push rod. Locking grooves are formed on both sides of the flange's exterior, and the ball bearing is adapted to the locking groove.

2. The quick-change mechanism for a laser cutting head according to claim 1, characterized in that: An inner ring is installed on the outside of the top rod, inside the side cavity, away from the flange, and the inner ring is fixedly connected to the top rod.

3. The quick-change mechanism for a laser cutting head according to claim 2, characterized in that: A return spring is installed inside the side cavity on the side of the top rod near the flange, and the return spring is located on the side of the inner ring away from the locking ring.

4. The quick-change mechanism for a laser cutting head according to claim 1, characterized in that: The locking ring is provided with levers that are evenly distributed along the ring, and the levers are fixedly connected to the locking ring.

5. The quick-change mechanism for a laser cutting head according to claim 1, characterized in that: The bottom of the flange is provided with a heat insulation layer, and the heat insulation layer is fixedly connected to the flange.

6. The quick-change mechanism for a laser cutting head according to claim 1, characterized in that: Indicator marks are provided at corresponding positions on the outer periphery of the flange and the bottom of the base, and the indicator marks are fixedly connected to the flange and the base respectively.

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