Laser machining machine tool

Abstract

The present application relates to the technical field of welding machine tool, specifically to a laser processing machine tool, comprising: a gantry sliding table and a support and a laser thereon; a mounting sleeve is fixedly installed on the support, a mounting cavity is formed in the mounting sleeve, the mounting cavity is composed of an inner cavity and an outer cavity from inside to outside, and forms a stepped state; a female seat and a locking structure are installed in the inner cavity, and a terminal cable is connected between the female seat and the laser; a male head is inserted into the mounting cavity, an assembly ring is slidably installed on the outer wall of the male head, a positioning spring seat is fixedly installed on the outer wall of the mounting sleeve in the outer cavity, a redundant spring is fixedly installed between the outer wall of the positioning spring seat and the assembly ring, and an electrical plug-in relationship can be formed between the male head and the female seat; a stroke cavity is formed in the outward end wall of the male head; the present application can ensure the butt joint stability of the male head and the female seat under the preset external force intensity, and can protect the wire harness under strong external force.

Description

Technical Field

[0001] This invention relates to the technical field of welding machine tools, specifically laser processing machine tools. Background Technology

[0002] Laser welding machine tools are CNC equipment that use high-energy laser beams as heat sources to perform precision welding of metal materials. They are widely used in high-end manufacturing fields such as automobiles, electronics, aerospace, and medical devices. Laser welding machine tools generate high-energy-density laser beams through lasers (such as fiber lasers, CO2 lasers, or disk lasers), which are focused and irradiated onto the joint of the workpiece, causing the material to melt instantly and form a molten pool. After cooling, a high-strength, low-deformation welded joint is achieved.

[0003] Because the machine tool laser head drags composite cables for a long time during multi-axis high-speed motion, such as continuous swinging and twisting of the robot wrist and reciprocating operation of the Z-axis of the gantry, the cable outlet of the cable chain or drive part is repeatedly pulled. Once damaged, such as power supply, Ethernet or fiber optic cables, fatigue or occasional damage will affect the operation of the machine. Summary of the Invention

[0004] This invention provides a laser processing machine tool that can ensure the stability of the male and female connectors under a preset external force intensity, while protecting the wire harness under strong external force.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] Laser processing machine tools, including:

[0007] A gantry slide, its support, and a laser are included. A mounting assembly is fixedly installed on the support. The assembly assembly has an internal cavity, which consists of an inner cavity and an outer cavity, forming a stepped structure. A female connector and a locking structure are installed in the inner cavity. An end cable connects the female connector to the laser. A male connector is inserted into the assembly cavity. An assembly ring is slidably mounted on the outer wall of the male connector. A positioning spring seat is fixedly installed on the outer wall of the assembly assembly located in the outer cavity. A redundant spring is fixedly installed between the positioning spring seat and the outer wall of the assembly ring. An electrical connection is formed between the male connector and the female connector. A travel cavity is formed on the outward-facing end wall of the male connector. A micro-motion terminal block is rotated within the assembly ring. A head cable is installed between the micro-motion terminal block and the external cable chain system. Multiple bent intermediate wire bundles are electrically connected between the male connector and the micro-motion terminal block.

[0008] Optionally, the locking structure includes an assembly groove on the outer wall of the assembly, an assembly block slidably installed in the assembly groove, a compression spring installed between the assembly block and the inner top of the assembly groove, the assembly groove being a necked structure, the assembly block being restricted to a resisting state by the necked structure and the compression spring, a replaceable locking block installed at the bottom of the assembly block, a snap-fit ​​groove being opened on the outer wall of the male head located in the inner cavity, the locking block and the snap-fit ​​groove forming an insertion fit, the sliding direction of the assembly block and the opening path of the snap-fit ​​groove are both located on the diameter line of the male head or its extension line, the assembly block is an iron product, and can be attracted by external magnetic force to break through the compression spring limit and move outward.

[0009] Optionally, a shear pin is installed between the card block and the assembly block. The shear pin has a hollow design and will break when subjected to a strong radial shear force.

[0010] Optionally, the assembly block has an internal optical groove, and a miniature fiber optic probe is installed inside the optical groove. The miniature fiber optic probe is coaxially designed with the hollow cavity of the clipper, and the miniature fiber optic probe looks at the male connector through the hollow cavity. The miniature fiber optic probe can be led out of the assembly and associated with an external amplifier circuit and alarm system. When the output switch value of the miniature fiber optic probe changes, an alarm can be triggered.

[0011] Optionally, the outer walls at both ends of the shear pin are threaded to the middle, and the outer walls of the opposite surfaces of the assembly block and the locking block are threaded grooves.

[0012] Optionally, multiple limiting guide grooves are provided on the inner wall of the outer cavity. The limiting guide grooves are designed along the axial direction of the assembly ring. A guide strip is fixedly installed on the outer wall of the assembly ring. The guide strip and the limiting guide groove have a sliding assembly relationship.

[0013] Optionally, the length of the intermediate wire harness after straightening is greater than the sliding stroke of the assembly ring, and a plurality of intermediate wire harnesses are distributed in a circumferential array between the micro-motion terminal block and the redundant spring, and the torsion range of the micro-motion terminal block on the inner wall of the assembly ring is within degrees.

[0014] Optionally, the female connector has an electrical coupling groove, and the male connector has multiple electrical coupling pins that form a plug-in electrical connection with the electrical coupling groove. The electrical coupling pins are electrically connected to multiple intermediate wire harnesses.

[0015] This invention provides a laser processing machine tool, which has the following advantages compared to the prior art:

[0016] By designing a positioning spring seat, redundant spring, assembly ring, and micro-motion terminal block on the outside of the male connector, when external force causes the cable at the beginning to pull the micro-motion terminal block outward, the sliding relationship between the assembly ring and the male connector causes the assembly ring and the micro-motion terminal block to move outward synchronously. During the displacement process, the redundant spring, as an elastic component, limits the excessive displacement of the assembly ring, thereby ensuring that under the preset external force intensity, the cable at the beginning will not pull the male connector outward to cause the wire harness system to break, thus avoiding the external force being transmitted to the male connector, which could lead to damage to the male connector or a decrease in the stability of the electrical connection.

[0017] The assembly block can be displaced under the drive of the compression spring. When the assembly block reaches the necking structure, the locking block will enter the snap-fit ​​groove to form a snap-fit. At this time, the male head is restricted from displacement, thereby ensuring the stability of the electrical connection between the male head and the female head.

[0018] The design of the shear pins ensures that the male connector will be pulled out under strong external force, preventing the strong locking of the locking structure from causing the wire harness to break, such as the connection between the intermediate wire harness and the first cable, or the connection between the first cable and the male connector. By breaking the shear pins, the locking structure fails, and the male connector can be displaced and moved, protecting the wire harness. At the same time, the replaceability of the clips greatly reduces losses. Compared with the breakage of the wire harness, the loss is small and the maintenance is fast, allowing for quick deployment. The maintenance time required to restore the connection of the wire harness is too long.

[0019] By using the miniature fiber optic probe in conjunction with the clipper pin, the miniature fiber optic probe can sense the distance between itself and the clipper block. However, when the clipper block is subjected to force and the male end breaks through the clipper pin's indicator and moves outward, the distance changes. At this point, it can be determined that a strong external force has occurred, alerting the staff that repair and maintenance are needed. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a three-dimensional structural diagram of the male head and female seat in this invention;

[0022] Figure 3 For the present invention Figure 2 A schematic diagram of the right-side view structure;

[0023] Figure 4 For the present invention along Figure 3 A schematic diagram of the structure viewed in section AA;

[0024] Figure 5 This is a schematic diagram of the internal three-dimensional structure of the male head and female seat in this invention;

[0025] Figure 6 For the present invention Figure 4 Enlarged view of the structure at point B;

[0026] Figure 7 This is a structural assembly diagram of the male connector and female connector in this invention;

[0027] Figure 8 This is a three-dimensional structural diagram of the shear nail structure of the present invention.

[0028] In the diagram: 1. Gantry slide; 2. Laser; 3. End cable; 4. Bracket; 5. Assembly kit; 6. Male connector; 7. Starter cable; 8. Female connector; 9. Assembly ring; 11. Redundant spring; 12. Assembly block; 13. Locking block; 14. Compression spring; 15. Shear pin; 16. Positioning spring seat; 17. Assembly cavity; 18. Intermediate wire harness; 19. Micro-motion terminal block. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figures 1 to 8 The present invention provides a technical solution: a laser processing machine tool, comprising:

[0031] The gantry slide 1 includes a support 4 and a laser 2. A mounting assembly 5 is fixedly installed on the support 4. The mounting assembly 5 has an assembly cavity 17 inside, consisting of an inner cavity and an outer cavity forming a stepped structure. A female connector 8 and a locking structure are installed inside the inner cavity. An end cable 3 connects the female connector 8 to the laser 2. A male connector 6 is inserted into the assembly cavity 17. An assembly ring 9 is slidably installed on the outer wall of the male connector 6. A positioning spring seat 16 is fixedly installed on the outer wall of the mounting assembly 5 inside the outer cavity. A redundant spring 11 is fixedly installed between the positioning spring seat 16 and the outer wall of the assembly ring 9. An electrical connection can be formed between the male connector 6 and the female connector 8. A travel cavity is opened on the outward-facing end wall of the male connector 6. A micro-motion terminal block 19 is limited to rotate inside the assembly ring 9. A head cable 7 is installed between the micro-motion terminal block 19 and the external cable chain system. Multiple intermediate wire harnesses 18 in a bent state are electrically connected between the male connector 6 and the micro-motion terminal block 19.

[0032] In existing technologies, the direct, rigid connection between the wire harness and the cable chain system or drive can easily damage the wire harness. Some wire harnesses have a sacrificial layer on the outside, but even this layer can wear down rapidly over long-term use, leading to wear on the internal wire harness. Excessive external force can also cause the wire harness to be forcibly pulled out, damaging the connector. In this invention, one end of the wire harness system, the end associated with the laser 2 (the female connector 8), is connected to the laser 2 via a terminal cable 3, forming a signal and electrical connection. Multiple different wire speeds are integrated into the terminal cable 3, ensuring stable transmission and connection between the terminal cable 3 and the female connector 8. The other end of the wire harness system, the end associated with the drive system, cable chain system, and control system, is a male connector 6. The female connector 8 is protected within the inner cavity of the assembly 5, while the male connector 6 can enter the assembly cavity 17 to connect with the female connector 8, thus completing the normal connection of the wire harness system. This ensures the normal operation of the wiring harness system. Importantly, the male connector 6 is externally designed with a positioning spring seat 16, a redundant spring 11, an assembly ring 9, and a micro-motion terminal block 19. When external force causes the first-end cable 7 to pull the micro-motion terminal block 19 outward, due to the sliding relationship between the assembly ring 9 and the male connector 6, the assembly ring 9 and the micro-motion terminal block 19 will move outward synchronously. During the displacement, the redundant spring 11, as an elastic component, limits the excessive displacement of the assembly ring 9, thereby ensuring that under the preset external force intensity, the first-end cable 7 will not pull the male connector 6 outward to cause the wiring harness system to break. Therefore, the micro-motion terminal block 19 and the male connector 6 cooperate to form a blocking relationship, preventing external force from being transmitted to the male connector 6, causing damage to the male connector 6 or the stability of the electrical connection, which has a good preventive effect. Secondly, the elastic component also provides kinetic energy for the reset of the assembly ring 9, and the intermediate wiring harness 18 will avoid its own pulling by the length accumulated by its bending during this process.

[0033] Therefore, the present invention can ensure the electrical connection stability between the male connector 6 and the female connector 8 by a preset external force strength, and ensure the normal operation of the laser system.

[0034] In a preferred embodiment, the locking structure includes an assembly groove formed on the outer wall of the assembly piece 5. An assembly block 12 is slidably installed in the assembly groove. A compression spring 14 is installed between the assembly block 12 and the inner top of the assembly groove. The assembly groove has a constricted structure. The assembly block 12 is restricted to a resisting state by the constricted structure and the compression spring 14. A replaceable locking block 13 is installed at the bottom of the assembly block 12. A snap-fit ​​groove is formed on the outer wall of the male head 6 located in the inner cavity. The locking block 13 and the snap-fit ​​groove form an insertion fit. The sliding direction of the assembly block 12 and the opening path of the snap-fit ​​groove are both on the diameter line or its extension line of the male head 6. The assembly block 12 is made of iron and can be attracted by external magnetic force to break through the limitation of the compression spring 14 and move outward. Please refer to [link to relevant documentation]. Figures 4 to 7In this embodiment, after the male connector 6 is connected to the female connector 8, it is necessary to ensure the connection stability of the male connector 6. At this time, the male connector 6 needs to be locked to prevent it from losing its position and disconnecting. After the connection is completed, the snap-fit ​​groove and the assembly groove are connected and interconnected. At this time, the external magnetic attraction device is released, so that the assembly block 12 can be displaced under the drive of the compression spring 14. At the same time, when the assembly block 12 reaches the necking structure, the locking block 13 will enter the snap-fit ​​groove to form a locking. At this time, the male connector 6 is restricted from displacement, thereby ensuring the electrical connection stability between the male connector 6 and the female connector 8.

[0035] Based on the locking structure embodiment, a shear pin 15 is installed between the locking block 13 and the assembly block 12. The shear pin 15 is hollow and will break when subjected to strong radial shear force. In this embodiment, since the connection between the male head 6 and the female seat 8 relies only on the engagement between the locking block 13 and the latching groove, when the male head 6 is subjected to a strong external force exceeding the preset external force strength, the assembly ring 9 will pull the male head 6 outward. At this time, the pressure or tension is applied to the locking block 13. By designing the shear pin 15 to be fractureable, it is ensured that... Under strong external force, the male connector 6 will be pulled out to prevent the stability of the locking structure from causing the wire harness to break. For example, the connection between the intermediate wire harness 18 and the first cable 7, or the connection between the first cable 7 and the male connector 6, are more vulnerable areas that are more easily damaged. With the breakage of the shear pin 15, the locking structure fails, and the male connector 6 can be displaced and shifted, protecting the wire harness. At the same time, due to the replaceability of the clip 13, the loss is greatly reduced. Compared with the breakage of the wire harness, the loss is small and the maintenance is fast, and it can be put into use quickly, while the maintenance time required to restore the connection of the wire harness is too long.

[0036] Based on the embodiment of the clipper 15, an optical groove is provided inside the assembly block 12, and a miniature fiber optic probe is installed inside the optical groove. The miniature fiber optic probe is coaxially designed with the hollow cavity of the clipper 15, and the miniature fiber optic probe looks towards the male connector 6 through the hollow cavity. The miniature fiber optic probe can be led out of the assembly block 5 and associated with an external amplifier circuit and alarm system. When the output switch value of the miniature fiber optic probe changes, an alarm can be triggered. Please refer to [link to relevant documentation]. Figure 6 In this embodiment, due to the hollow nature of the clipper 15, in addition to having the characteristic of shearing and breaking, it also has the property of communication. When it is connected, the miniature fiber optic probe can sense the distance between it and the card block 13. However, when the card block 13 is subjected to force and the male head 6 breaks through the display of the clipper 15 and moves outward, the distance changes. At this time, it can be determined that a strong external force has occurred, and the staff is alerted that repair and maintenance are required.

[0037] Based on the embodiment of the shear pin 15, threads are formed on the outer walls of both ends of the shear pin 15 to the middle, and threaded grooves are formed on the outer walls of the opposing surfaces of the assembly block 12 and the locking block 13. Please refer to [link / reference]. Figure 8This embodiment provides an implementation scheme in which a shearing pin 15 is used as an intermediate structure to connect the assembly block 12 and the locking block 13. By utilizing the cooperation of the threaded groove and the thread, the shearing pin 15 can form a detachable fixed connection with the assembly block 12 and the locking block 13 at the same time. At the same time, the depth of the locking block 13 inserted into the buckle groove can be controlled as needed to adjust the force.

[0038] In a preferred embodiment, multiple limiting guide grooves are provided on the inner wall of the outer cavity. The limiting guide grooves are designed along the axial direction of the assembly ring 5. A guide strip is fixedly installed on the outer wall of the assembly ring 9. The guide strip and the limiting guide groove have a sliding assembly relationship.

[0039] In summary, further, the length of the intermediate wire harness 18 after straightening is greater than the sliding stroke of the assembly ring 9. Multiple intermediate wire harnesses 18 are arranged in a circumferential array between the micro-motion terminal block 19 and the redundant spring 11. The torsion range of the micro-motion terminal block 19 on the inner wall of the assembly ring 9 is within 30 degrees. Similarly, the first-end cable 7 will be subjected to both tension and torsional force. Therefore, on this basis, a certain redundant stroke is provided for the torsion of the micro-motion terminal block 19 to avoid hard damage caused by torsion.

[0040] Furthermore, the female connector 8 is provided with an electrical coupling groove, and the male connector 6 is equipped with multiple electrical coupling pins that form a plug-in electrical connection with the electrical coupling groove. The electrical coupling pins are electrically connected to multiple intermediate wire harnesses 18.

[0041] By utilizing the above-mentioned structures, the stability of the male connector 6 and the female connector 8 can be ensured under a preset external force, while the wire harness can be protected under strong external forces.

[0042] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural parts described in the specification and drawings can also be processed without any doubt based on existing technical common sense. At the same time, the connection methods of each component adopt mature conventional methods in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so they will not be described in detail here.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A laser processing machine tool, characterized in that: include: The gantry slide (1) and its upper support (4) and laser (2); The bracket (4) is fixedly installed with an assembly kit (5). The assembly kit (5) has an assembly cavity (17) inside. The assembly cavity (17) consists of an inner cavity and an outer cavity from the inside to the outside, forming a stepped state. The cavity is equipped with a female seat (8) and a locking structure, and the female seat (8) is connected to the laser (2) by an end cable (3). A male connector (6) is inserted into the assembly cavity (17). An assembly ring (9) is slidably installed on the outer wall of the male connector (6). A positioning spring seat (16) is fixedly installed on the outer wall of the assembly set (5) located in the outer cavity. A redundant spring (11) is fixedly installed between the positioning spring seat (16) and the outer wall of the assembly ring (9). An electrical connection can be formed between the male connector (6) and the female connector (8). The male connector (6) has a stroke cavity on its outward-facing end wall. The assembly ring (9) has a micro-motion terminal block (19) inside for limited rotation. The micro-motion terminal block (19) is connected to the external drag chain system by a head cable (7). The male connector (6) and the micro-motion terminal block (19) are electrically connected by multiple intermediate wire harnesses (18) in a bent state. The locking structure includes an assembly groove on the outer wall of the assembly (5), an assembly block (12) is slidably installed in the assembly groove, a compression spring (14) is installed between the assembly block (12) and the inner top of the assembly groove, the assembly groove is a necking structure, the assembly block (12) is restricted to a resisting state by the necking structure and the compression spring (14), a replaceable locking block (13) is installed at the bottom of the assembly block (12), a buckle groove is opened on the outer wall of the male head (6) located in the inner cavity, the locking block (13) and the buckle groove form a plug-in fit, the sliding direction of the assembly block (12) and the opening path of the buckle groove are both on the diameter line or its extension line of the male head (6), the assembly block (12) is an iron product, and can break through the limit of the compression spring (14) and move outward by external magnetic attraction; A shear pin (15) is installed between the card block (13) and the assembly block (12). The shear pin (15) is hollow and will break when subjected to strong radial shear force.

2. The laser processing machine tool according to claim 1, characterized in that: The assembly block (12) has an optical groove inside, and a miniature optical fiber probe is installed inside the optical groove. The miniature optical fiber probe is coaxially designed with the hollow cavity of the clip (15), and the miniature optical fiber probe looks at the male head (6) through the hollow cavity. The miniature optical fiber probe can be led out of the assembly block (5) and associated with the external amplifier circuit and alarm system. When the output switch quantity of the miniature optical fiber probe changes, an alarm can be triggered.

3. The laser processing machine tool according to claim 1, characterized in that: The outer walls at both ends of the shear pin (15) are threaded to the middle, and the outer walls of the opposite sides of the assembly block (12) and the locking block (13) are threaded grooves.

4. The laser processing machine tool according to claim 1, characterized in that: Multiple limiting guide grooves are provided on the inner wall of the outer cavity. The limiting guide grooves are designed along the axial direction of the assembly (5). A guide strip is fixedly installed on the outer wall of the assembly ring (9). The guide strip and the limiting guide groove have a sliding assembly relationship.

5. The laser processing machine tool according to any one of claims 1-4, characterized in that: The length of the intermediate wire harness (18) after straightening is greater than the sliding stroke of the assembly ring (9). Multiple intermediate wire harnesses (18) are arranged in a circumferential array between the micro-motion terminal block (19) and the redundant spring (11), and the torsion range of the micro-motion terminal block (19) on the inner wall of the assembly ring (9) is within 30 degrees.

6. The laser processing machine tool according to claim 5, characterized in that: The female connector (8) has an electrical coupling groove, and the male connector (6) has multiple electrical coupling pins that form a plug-in electrical connection with the electrical coupling groove. The electrical coupling pins are electrically connected to multiple intermediate wire harnesses (18).

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