Anti-collision device with buffer structure and anti-collision welding gun head

Abstract

The utility model discloses an anti-collision device with a buffer structure and an anti-collision welding gun head, the anti-collision device comprises a vertical plate and an emergency stop circuit, the vertical plate is provided with a T-shaped plate, the T-shaped plate is slidably connected with an ejector pin, the vertical plate is correspondingly provided with a first plane at the tail end of the ejector pin, and a buffer space is reserved between the first plane and the ejector pin. A buffer device is mounted on the first plane, and when the tail end of the ejector pin is in contact with the buffer device or the first plane, an emergency stop circuit is switched on; the anti-collision welding gun head comprises a laser welding gun head body and an anti-collision device, the vertical plate is fixedly connected with the laser welding gun head body through a clamping piece, the buffering device is arranged, equipment sudden stop is achieved through collision of the ejector pin and the buffering device, the dual anti-collision purpose is achieved, and sudden stop reaction is rapider, safer and more reliable; the use durability of the vertical plate is improved, the service life of the anti-collision device is prolonged, the welding gun head is effectively prevented from colliding with welding materials, the welding gun head is protected, and the practical service life of welding equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of welding accessories, in particular to an anti-collision device with a buffer structure and an anti-collision welding gun head. Background Art

[0002] At present, in the aluminum profile door and window industry, the existing door and window welding machines cannot press the emergency stop in time when welding doors and windows due to inaccurate positioning, operator errors, inaccurate focus, Z-axis coordinate input and output errors, etc., causing the gun head to collide with the material clamping device, causing damage to the gun head, affecting the welding accuracy, reducing the service life of the machine, and also affecting the welding quality of doors and windows. In order to effectively protect laser welding equipment and extend its service life, the existing anti-collision device, after multiple anti-collision emergency stops, is repeatedly hit by the connecting plate on the anti-collision structure, causing the connecting plate on it to be easily damaged, with a short service life and needing to be replaced frequently. For this reason, this application proposes an anti-collision device with a buffer structure and an anti-collision welding gun head to solve the above problems. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an anti-collision device with a buffer structure and an anti-collision welding gun head.

[0004] In order to solve the above technical problems, the utility model provides an anti-collision device with a buffer structure, which includes a vertical plate and an emergency stop circuit. A T-shaped plate is installed on one side of the vertical plate, and a ejector pin is slidably connected to the T-shaped plate. The vertical plate is located at a first plane corresponding to the tail end of the ejector pin, and a buffer space is left between the first plane and the ejector pin. A buffer device is installed on the first plane. When the tail end of the ejector pin contacts the buffer device or the first plane, the emergency stop circuit is turned on.

[0005] Preferably, a sleeve is fixedly connected to the T-shaped plate, and the ejector pin slides through the sleeve.

[0006] Preferably, the plane dimension of the tail end of the ejector pin is larger than the inner diameter dimension of the sleeve.

[0007] Preferably, the T-shaped plate is provided with two straight slots, and the T-shaped plate is connected to the vertical plate by bolts passing through the straight slots.

[0008] Preferably, a first electrode is provided at the tail end of the ejector pin, and a second electrode and a third electrode corresponding to the first electrode are respectively provided on the buffer device and the first plane, and the second electrode and the third electrode are respectively connected to the emergency stop circuit, and when the first electrode contacts the second electrode or the third electrode, the emergency stop circuit is connected.

[0009] Preferably, the buffer device is a spring or a spring, and the ejector pin, the buffer device and the first plane are all made of conductive materials.

[0010] The utility model also provides an anti-collision welding gun head, which includes a laser welding gun head and the above-mentioned anti-collision device, the vertical plate is fixedly connected to the laser welding gun head through a clamp, a wire feeding nozzle is installed on the vertical plate, a welding wire is arranged in the wire feeding nozzle, the welding wire and the laser welding gun head emission point intersect at the welding point, and the laser welding gun head and the wire feeding nozzle stop working when the emergency stop circuit is connected.

[0011] Preferably, the head end of the ejector pin is higher than the welding point and lower than the lower bottom surface of the vertical plate.

[0012] Preferably, the ejector pin is arranged in parallel with the laser welding gun head.

[0013] The beneficial effects of the utility model are as follows: the utility model achieves the purpose of double anti-collision by arranging a buffer device on the vertical plate and realizing the emergency stop of the equipment by utilizing the collision between the ejector pin and the buffer device, so that the machine is more rapid, safe and reliable when making an emergency stop response; and because the direct contact between the ejector pin and the vertical plate is avoided, the durability of the vertical plate is improved, the replacement frequency is reduced, and the service life of the anti-collision device is increased, the laser welding gun head is effectively prevented from colliding with the welding material, the laser welding gun head is protected, the practical life of the welding equipment is increased, the welding accuracy is also improved, and the welding quality is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the anti-collision device in the utility model;

[0015] Figure 2 It is a three-dimensional schematic diagram of the overall structure of the anti-collision welding gun head in the utility model;

[0016] Figure 3 for Figure 2 Schematic side view of

[0017] Figure 4 for Figure 3 Schematic diagram of the structure of the middle part.

[0018] In the figure: 1. vertical plate; 2. T-plate; 3. ejector pin; 4. first plane; 5. buffer device; 6. sleeve; 7. straight slot; 8. bolt; 9. laser welding gun head; 10. clamp; 11. wire feeding nozzle; 12. inclined hole; 13. welding wire; 14. welding plate; 15. welding point. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the accompanying drawings in the embodiments of the utility model. All directional indications in the utility model (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0020] like Figure 1 As shown, the present embodiment provides an anti-collision device with a buffer structure, which includes a vertical plate 1, the shape of the vertical plate 1 is twice vertically bent, and a T-shaped plate 2 is installed on a side surface of the vertical plate 1 near the lower end, and a thimble 3 is slidably connected to the T-shaped plate 2, and a first plane 4 is correspondingly arranged at the tail end of the thimble 3 on the vertical plate 1, and a buffer space is reserved between the first plane 4 and the thimble 3, and a buffer device 5 is installed on the first plane 4. Under normal conditions, there is a certain distance between the thimble 3 and the buffer device 5. When an emergency occurs, the thimble 3 moves toward the buffer device 5, so that the tail end of the thimble 3 first contacts the buffer device 5, and the emergency stop circuit is connected. The emergency stop circuit is connected to the PLC control system. After the connection is connected, the PLC control system shuts down the machine in time. After the buffer device 5 is damaged, the tail end of the thimble 3 contacts the first plane 4, and the emergency stop circuit can also be connected. The machine is shut down by using the PLC control system. When an unexpected emergency occurs, the thimble 3 collides with the buffer device 5 first, thereby protecting the vertical plate 1 and achieving the purpose of double anti-collision.

[0021] Furthermore, a sleeve 6 is fixedly connected to the T-shaped plate 2, and both ends of the sleeve 6 pass through the T-shaped plate 2. The ejector pin 3 slides through the sleeve 6. At the same time, in order to keep the ejector pin 3 in a certain position, the plane size of the tail end of the ejector pin 3 is larger than the inner diameter size of the sleeve 6. When the machine is in use, the vertical plate 1 is placed vertically, and the ejector pin 3 slides downward under the action of gravity. The tail end of the ejector pin 3 is in contact with the upper top surface of the sleeve 6. In order to maintain the stability of the ejector pin 3, the ejector pin 3 can be connected to the sleeve 6 or the T-shaped plate 2 through a spring, and the spring is used to maintain the initial state of the ejector pin 3. When the ejector pin 3 contacts the buffer device 5 or the first plane 4 in an emergency, the machine is shut down, and under the action of the spring, the ejector pin 3 quickly returns to its original state.

[0022] Two straight slots 7 are provided on the T-shaped plate 2, and the T-shaped plate 2 is connected to the vertical plate 1 by bolts 8 passing through the straight slots 7. The straight slots 7 are arranged along the axial direction of the ejector pin 3. The position of the T-shaped plate 2 can be adjusted within the range of the straight slots 7, thereby adjusting the initial position of the ejector pin 3.

[0023] In order to enable the ejector pin 3 to connect to the emergency stop circuit, a first electrode is provided at the tail end of the ejector pin 3, and a second electrode and a third electrode corresponding to the first electrode are respectively provided on the buffer device 5 and the first plane 4. The second electrode and the third electrode are respectively connected to the emergency stop circuit. When the first electrode contacts the second electrode or the third electrode, the emergency stop circuit is connected.

[0024] In addition, the ejector pin, the buffer device and the first plane can all be made of conductive materials. In this way, the ejector pin, the buffer device and the first plane itself can serve as the first electrode, the second electrode and the third electrode. In the design of the buffer device 5, a material with easy elastic recovery, high durability and conductivity is selected, such as a spring, a spring sheet and other elastic conductive structures.

[0025] Based on the above-mentioned anti-collision device with buffer structure, Figure 1-4 As shown, the present embodiment also provides an anti-collision welding gun head, which includes a laser welding gun head 9 and the above-mentioned anti-collision device. The vertical plate 1 is fixedly connected to the laser welding gun head 9 through a clamp 10. A wire feeding nozzle 11 is installed on the vertical plate 1. Specifically, an inclined hole 12 is opened on the vertical plate 1, and the wire feeding nozzle 11 is nested in the inclined hole 12. The wire feeding nozzle 11 is cylindrical, and a welding wire 13 is arranged in the wire feeding nozzle 11 and the welding wire 13 passes through the wire feeding nozzle 11. The welding wire 13 and the welding gun head ejection point intersect at the welding point 15 of the welding plate 14, and the head end of the ejector pin 3 is higher than the welding point 15 and lower than the lower bottom surface of the vertical plate 1, and the ejector pin 3 is arranged parallel to the laser welding gun head 9. Before the vertical plate 1 collides with the welding plate 14, the ejector pin 3 first contacts the welding plate 14 and triggers the emergency stop switch. When the emergency stop circuit is connected, the laser welding gun head and the wire feeding nozzle stop working.

[0026] Its working principle is as follows: the vertical plate 1 is fixed to the laser welding gun head 9 by a clamp 10, a buffer device 5 is provided on the vertical plate 1, and the equipment is stopped urgently by utilizing the collision between the ejector pin 3 and the buffer device 5, thereby achieving the purpose of double anti-collision, making the machine more rapid, safe and reliable when making an emergency stop response; and since the direct contact between the ejector pin 3 and the vertical plate 1 is avoided, the durability of the vertical plate 1 is improved, the replacement frequency is reduced, and the service life of the anti-collision device is increased, effectively preventing the laser welding gun head 9 from colliding with the welding material, protecting the welding gun head, and increasing the practical life of the welding equipment, and also improving the welding accuracy, thereby improving the welding quality.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-collision device with a buffer structure, comprising a vertical plate and an emergency stop circuit, wherein a T-shaped plate is installed on one side of the vertical plate, characterized in that: A ejector pin is slidably connected to the T-shaped plate, a first plane is arranged on the vertical plate at the tail end of the ejector pin, a buffer space is left between the first plane and the ejector pin, a buffer device is installed on the first plane, and when the tail end of the ejector pin contacts the buffer device or the first plane, the emergency stop circuit is turned on.

2. The anti-collision device with a buffer structure according to claim 1, characterized in that: A sleeve is fixedly connected to the T-shaped plate, and the ejector pin slides through the sleeve.

3. The anti-collision device with a buffer structure according to claim 2, characterized in that: The tail end plane dimension of the ejector pin is larger than the inner diameter dimension of the sleeve.

4. The anti-collision device with a buffer structure according to claim 1, characterized in that: The T-shaped plate is provided with two straight slots, and the T-shaped plate is connected to the vertical plate by bolts passing through the straight slots.

5. The anti-collision device with a buffer structure according to claim 1, characterized in that: A first electrode is provided at the tail end of the ejector pin, and a second electrode and a third electrode corresponding to the first electrode are respectively provided on the buffer device and the first plane. The second electrode and the third electrode are respectively connected to the emergency stop circuit. When the first electrode contacts the second electrode or the third electrode, the emergency stop circuit is connected.

6. The anti-collision device with a buffer structure according to claim 1, characterized in that: The buffer device is a spring or a spring sheet, and the ejector pin, the buffer device and the first plane are all made of conductive materials.

7. A collision-proof welding gun head, characterized in that: It includes a laser welding gun head and the anti-collision device according to any one of claims 1-6, the vertical plate is fixedly connected to the laser welding gun head by a clamp, a wire feeding nozzle is installed on the vertical plate, a welding wire is arranged in the wire feeding nozzle, the welding wire and the emission point of the laser welding gun head intersect at the welding point, and the laser welding gun head and the wire feeding nozzle stop working when the emergency stop circuit is connected.

8. The anti-collision welding gun head according to claim 7, characterized in that: The head end of the ejector pin is higher than the welding point and lower than the lower bottom surface of the vertical plate.

9. The anti-collision welding gun head according to claim 7, characterized in that: The ejector pin is arranged in parallel with the laser welding gun head.

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