Optical fiber traction device and laser processing equipment

Abstract

The utility model provides an optical fiber traction device and laser processing equipment. The optical fiber traction device comprises a mounting plate; the traction assembly can be movably installed on the installation plate in the first direction, the traction assembly is used for traction and fixation of an optical fiber, and one end of the optical fiber is used for being connected with a machining head; and the driving mechanism is in transmission connection with the traction assembly and is used for driving the traction assembly to move along the first direction so as to enable the optical fiber to synchronously move along the first direction. According to the optical fiber traction device, when the processing head moves in the first direction, the driving mechanism can drive the traction assembly to move in the first direction, so that the optical fiber is driven to move synchronously in the first direction, no relative displacement exists between the optical fiber and the processing head, the optical fiber is prevented from being pulled by the processing head, and the service life of the optical fiber is prolonged.

Description

Technical Field

[0001] The present application belongs to the field of laser processing technology, and more specifically, relates to an optical fiber pulling device and laser processing equipment. Background Art

[0002] Fiber lasers are widely used in the processing and welding of power batteries due to their advantages such as good beam quality, low cost, high conversion efficiency, multiple output wavelengths, good temperature stability, and good compatibility.

[0003] A fiber laser's laser generator and processing head are connected by an optical fiber. During the laser welding process, the processing head moves back and forth, and the optical fiber also moves with it. Related technologies typically drive the processing head in lateral motion, and the processing head pulls the optical fiber to achieve this motion, which can easily cause the fiber to break. Utility Model Content

[0004] An embodiment of the present application provides an optical fiber pulling device, which prevents the optical fiber from being pulled by a processing head and increases the service life of the optical fiber.

[0005] The technical solution adopted in the embodiment of the present application is to provide an optical fiber pulling device, comprising:

[0006] Mounting plate;

[0007] a pulling assembly, movably mounted on the mounting plate along a first direction, the pulling assembly being used for pulling and fixing the optical fiber, one end of the optical fiber being used for connecting to the processing head; and

[0008] The driving mechanism is in transmission connection with the traction assembly and is used to drive the traction assembly to move along the first direction so that the optical fiber moves synchronously along the first direction.

[0009] Furthermore, the driving mechanism includes:

[0010] A driving member, disposed on the mounting plate;

[0011] a driving wheel, drivingly connected to the output end of the driving member; and

[0012] A driven wheel and a transmission belt, wherein the transmission belt is connected to the driving wheel and the driven wheel;

[0013] The traction assembly is connected to the transmission belt.

[0014] Furthermore, the mounting plate is provided with a through slot extending along the first direction.

[0015] The pulling assembly is provided with a through hole that is opposite to at least part of the through slot, and one end of the optical fiber passes through the through hole and the through slot in sequence and is connected to the processing head.

[0016] When the pulling assembly moves along the first direction, it drives the optical fiber to move along the first direction in the through slot.

[0017] Furthermore, the traction assembly covers a portion of the through slot along the first direction to divide the through slot into a first half slot and a second half slot.

[0018] The optical fiber pulling device further includes a first telescopic cover for covering the first half slot and a second telescopic cover for covering the second half slot.

[0019] One end of the first telescopic cover along the first direction is connected to an end of the first half slot away from the traction assembly, and the other end of the first telescopic cover along the first direction is connected to an end of the traction assembly along the first direction.

[0020] One end of the second telescopic cover along the first direction is connected to one end of the second half slot away from the traction assembly, and the other end of the second telescopic cover along the first direction is connected to the other end of the traction assembly along the first direction.

[0021] Furthermore, the size of the traction assembly along the first direction is smaller than the size of the through slot along the first direction, and the size of the traction assembly along the second direction is larger than the size of the through slot along the second direction;

[0022] The second direction is arranged at an angle to the first direction.

[0023] Furthermore, the traction assembly is provided with a brush, which extends into the through hole and abuts against the optical fiber to prevent dust from falling from the through hole to below the mounting plate.

[0024] Furthermore, the optical fiber pulling device further comprises:

[0025] A first guide rail is provided on one end of the mounting plate close to the through slot along the second direction, and the first guide rail extends along the first direction;

[0026] a second guide rail, disposed on the other end of the mounting plate close to the through slot along the second direction, and extending along the first direction;

[0027] a first slider, slidably mounted on the first guide rail; and

[0028] a second slider, slidably mounted on the second guide rail;

[0029] One end of the traction assembly is connected to the first slider, and the other end of the traction assembly is connected to the second slider;

[0030] The second direction is arranged at an angle to the first direction.

[0031] Furthermore, the traction assembly includes:

[0032] a cover plate, wherein one end of the cover plate along the second direction is connected to the first slider, and the other end of the cover plate is connected to the second slider, and the through hole is formed on the cover plate; and

[0033] A fixing seat is arranged on the cover plate, and the optical fiber is fixedly installed on the fixing seat.

[0034] Furthermore, the traction assembly further includes an elastic member, and the fixing seat is movably arranged on the cover plate.

[0035] When the end of the optical fiber connected to the processing head is subjected to tension, the fixing seat descends, and when the tension is removed, the elastic member can provide elastic force to make the fixing seat rise;

[0036] The lifting direction of the fixing seat is set at an angle to the first direction and the second direction.

[0037] The embodiment of the present application further provides a laser processing device, comprising a laser generator, a processing head, an optical fiber, and the optical fiber pulling device as described above.

[0038] The optical fiber is fixed on the pulling assembly of the optical fiber pulling device, and one end of the optical fiber is connected to the processing head, and the other end is connected to the laser generator.

[0039] The beneficial effects of the optical fiber pulling device provided in the embodiment of the present application are: in the optical fiber pulling device in the embodiment of the present application, the pulling assembly can be movably mounted on the mounting plate along a first direction, the optical fiber is fixed on the pulling assembly, one end of the optical fiber is used to connect with the processing head, and cooperates with the driving mechanism to be connected to the pulling assembly for transmission. When the processing head moves along the first direction, the driving mechanism can drive the pulling assembly to move along the first direction, thereby driving the optical fiber to move synchronously along the first direction, so that there is no relative displacement between the optical fiber and the processing head, thereby avoiding the optical fiber being pulled by the processing head and improving the service life of the optical fiber. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0041] Figure 1 A schematic diagram of the three-dimensional structure of the optical fiber pulling device and welding head provided in an embodiment of the present application;

[0042] Figure 2 for Figure 1 A local enlarged schematic diagram at point A;

[0043] Figure 3 A schematic diagram of the three-dimensional structure of the optical fiber pulling device provided in an embodiment of the present application;

[0044] Figure 4 A schematic diagram of the three-dimensional structure of the optical fiber pulling device provided in an embodiment of the present application omitting the first telescopic cover and the second telescopic cover;

[0045] Figure 5 This is a schematic diagram of the three-dimensional structure of the traction assembly used in an embodiment of the present application.

[0046] Among them, the reference numerals in the figures are:

[0047] 100. Fiber traction device; 10. Mounting plate; 11. Through slot; 111. First half slot; 112. Second half slot; 20. Traction assembly; 21. Through hole; 22. Cover plate; 23. Fixing seat; 231. Fixing hole; 24. Elastic member; 30. Driving mechanism; 31. Driving member; 32. Active pulley; 33. Driven pulley; 34. Transmission belt; 40. First telescopic cover; 50. Second telescopic cover; 60. First sealing plate; 70. Second sealing plate; 80. Brush; 91. First guide rail; 92. Second guide rail; 93. First slider; 94. Second slider; 200. Fiber optic; 300. Processing head. DETAILED DESCRIPTION

[0048] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0049] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0050] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0051] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0052] See also Figure 1 and Figure 3 The optical fiber pulling device 100 provided in an embodiment of the present application will now be described. The optical fiber pulling device 100 provided in an embodiment of the present application includes a mounting plate 10, a pulling assembly 20, and a driving mechanism 30. The pulling assembly 20 is movably mounted on the mounting plate 10 along a first direction. The pulling assembly 20 is used to pull and secure an optical fiber 200, one end of which is connected to a processing head 300. The driving mechanism 30 is in transmission connection with the pulling assembly 20 and is used to drive the pulling assembly 20 in the first direction to synchronize the movement of the optical fiber 200 along the first direction.

[0053] When the processing head 300 moves along the first direction, in order to prevent the processing head 300 from pulling the optical fiber 200, the embodiment of the present application fixes the optical fiber 200 on the traction assembly 20, and drives the traction assembly 20 to move along the first direction through the driving mechanism 30, thereby driving the optical fiber 200 to move synchronously along the first direction, so that there is no relative displacement between the optical fiber 200 and the processing head 300, thereby preventing the optical fiber 200 from being pulled by the processing head 300 and improving the service life of the optical fiber 200.

[0054] Among them, see Figure 1 The “first direction” can be represented by the X-axis, the “second direction” described below can be represented by the Y-axis, and the “lifting direction of the fixing seat 23” described below can be represented by the Z-axis.

[0055] See also Figure 3 and Figure 4The drive mechanism 30 may include a driving member 31, a driving pulley 32, a driven pulley 33, and a transmission belt 34. The driving member 31 is disposed on the mounting plate 10. The driving pulley 32 is in driving connection with the output end of the driving member 31. The transmission belt 34 is in driving connection with the driving pulley 32 and the driven pulley 33, and the traction assembly 20 is connected to the transmission belt 34.

[0056] When the driving member 31 drives the driving wheel 32 to rotate, the transmission belt 34 located between the driving wheel 32 and the driven wheel 33 can achieve linear motion. Since the traction assembly 20 is connected to the transmission belt 34, the traction assembly 20 can be synchronously moved along the first direction. The transmission belt 34 drives the traction assembly 20 along the first direction, which has high transmission accuracy and simple structure.

[0057] See also Figure 4 and Figure 5 The mounting plate 10 may be provided with a through slot 11 extending in a first direction, and the pulling assembly 20 may be provided with a through hole 21 that is opposite to at least a portion of the through slot 11. One end of the optical fiber 200 passes through the through hole 21 and the through slot 11 in sequence and is connected to the processing head 300. When the pulling assembly 20 moves in the first direction, it drives the optical fiber 200 to move in the through slot 11 in the first direction. By providing the through slot 11 extending in the first direction on the mounting plate 10 and providing the through hole 21 that is opposite to at least a portion of the through slot 11 on the pulling assembly 20, when the pulling assembly 20 drives the optical fiber 200 to move, the optical fiber 200 can move in the through slot 11 in the first direction, avoiding interference with the movement of the optical fiber 200.

[0058] See also Figure 3 and Figure 4 The pulling assembly 20 can cover a portion of the through slot 11 along the first direction to divide the through slot 11 into a first half slot 111 and a second half slot 112. The optical fiber pulling device 100 can also include a first telescopic cover 40 for covering the first half slot 111 and a second telescopic cover 50 for covering the second half slot 112. One end of the first telescopic cover 40 along the first direction is connected to an end of the first half slot 111 away from the pulling assembly 20, and the other end of the first telescopic cover 40 along the first direction is connected to an end of the pulling assembly 20 along the first direction. One end of the second telescopic cover 50 along the first direction is connected to an end of the second half slot 112 away from the pulling assembly 20, and the other end of the second telescopic cover 50 along the first direction is connected to the other end of the pulling assembly 20 along the first direction.

[0059] By setting the first telescopic cover 40 and the second telescopic cover 50, the first half slot 111 and the second half slot 112 can be covered respectively, which can not only prevent dust from falling into the area of ​​the processing head 300, but also prevent the laser of the processing head 300 from leaking during processing, thereby ensuring human and machine safety.

[0060] It is understood that the telescopic direction of the first telescopic cover 40 and the second telescopic cover 50 is the same as the first direction. When the traction assembly 20 moves along the first direction, the traction assembly 20 can compress the first telescopic cover 40 and stretch the second telescopic cover 50 at the same time, or stretch the first telescopic cover 40 and compress the second telescopic cover 50 at the same time, so that when the traction assembly 20 moves along the first direction, the first telescopic cover 40 and the second telescopic cover 50 can always cover the first half slot 111 and the second half slot 112. Specifically, the first telescopic cover 40 and the second telescopic cover 50 can be accordion covers.

[0061] See also Figure 3 and Figure 4 The optical fiber pulling device 100 may further include a first sealing plate 60 and a second sealing plate 70. The first sealing plate 60 is disposed at one end of the mounting plate 10 near the slot along the first direction, and the second sealing plate 70 is disposed at the other end of the mounting plate 10 near the slot along the first direction. Specifically, one end of the first telescopic cover 40 along the first direction is connected to the first sealing plate 60, and the other end of the first telescopic cover 40 along the first direction is connected to one end of the pulling assembly 20 along the first direction. The second telescopic cover 50 along the first direction is connected to the second sealing plate 70, and the other end of the second telescopic cover 50 along the first direction is connected to the other end of the pulling assembly 20 along the first direction. The arrangement of the first sealing plate 60 and the second sealing plate 70 can cover both sides of the slot along the first direction.

[0062] See also Figure 4 The dimension of the traction assembly 20 along the first direction can be smaller than the dimension of the through-slot 11 along the first direction, and the dimension of the traction assembly 20 along the second direction can be larger than the dimension of the through-slot 11 along the second direction. The second direction is set at an angle to the first direction, specifically, a 90° angle. By having the dimension of the traction assembly 20 along the second direction larger than the dimension of the through-slot 11 along the second direction, the traction assembly 20 can completely cover both sides of the through-slot 11 along the second direction. Furthermore, the dimension of the traction assembly 20 along the first direction is smaller than the dimension of the through-slot 11 along the first direction, providing space for the installation of the first telescopic cover 40 and the second telescopic cover 50.

[0063] See also Figure 2 and Figure 5 The traction assembly 20 may be provided with a brush 80, which extends into the through hole 21 and abuts against the optical fiber 200 to prevent dust from falling from the through hole 21 to the bottom of the mounting plate 10. The provision of the brush 80 can prevent dust from falling from the through hole 21 to the bottom of the mounting plate 10.

[0064] See also Figure 4 and Figure 5The optical fiber pulling device 100 may further include a first guide rail 91, a second guide rail 92, a first slider 93, and a second slider 94. The first guide rail 91 is disposed at one end of the mounting plate 10 near the through slot 11 along the second direction, and the first guide rail 91 extends along the first direction. The second guide rail 92 is disposed at the other end of the mounting plate 10 near the through slot 11 along the second direction, and the second guide rail 92 extends along the first direction. The first slider 93 is slidably mounted on the first guide rail 91. The second slider 94 is slidably mounted on the second guide rail 92. One end of the pulling assembly 20 is connected to the first slider 93, and the other end of the pulling assembly 20 is connected to the second slider 94. Through the cooperation between the first guide rail 91 and the first slider 93, and the second guide rail 92 and the second slider 94, the accuracy of the movement of the pulling assembly 20 can be achieved and deviation can be avoided.

[0065] See also Figure 5 The pulling assembly 20 may include a cover plate 22 and a fixing base 23. One end of the cover plate 22 along the second direction is connected to the first slider 93, and the other end is connected to the second slider 94. A through hole 21 is defined in the cover plate 22. The cover plate 22 is used to cover the slot directly opposite the cover plate 22. The fixing base 23 is disposed on the cover plate 22, and the optical fiber 200 is fixedly mounted on the fixing base 23. Specifically, the fixing base 23 defines a fixing hole 231, and the optical fiber 200 is fixedly mounted in the fixing hole 231.

[0066] See also Figure 5 The traction assembly 20 may further include an elastic member 24, and the fixing seat 23 is movably arranged on the cover plate 22. When the end of the optical fiber 200 connected to the processing head 300 is subjected to tension, the fixing seat 23 descends. When the tension is removed, the elastic member 24 can provide elastic force to cause the fixing seat 23 to ascend. The ascending and descending direction of the fixing seat 23 is set at an angle relative to the first direction and the second direction, for example, it can be 90 degrees. By providing the elastic member 24, the fixing seat 23 can be raised and lowered, and the optical fiber 200 can be raised and lowered, thereby preventing the optical fiber 200 from being torn when the processing head 300 is raised and lowered. Specifically, the elastic member 24 can be a compression spring.

[0067] like Figure 1 As shown, an embodiment of the present application also provides a laser processing device that can be used in battery welding, including a laser generator (not shown in the figure), a processing head 300, an optical fiber 200, and the optical fiber pulling device 100 in any of the above embodiments, the optical fiber 200 is fixed on the pulling assembly 20 of the optical fiber pulling device 100, and one end of the optical fiber 200 is connected to the processing head 300, and the other end is connected to the laser generator.

[0068] Since the laser processing equipment of the embodiment of the present application includes the optical fiber pulling device 100 in any of the above embodiments, it has the beneficial effects brought by the optical fiber pulling device 100 in any of the above embodiments, which will not be described in detail here.

[0069] The laser processing equipment may also include a housing (not shown) with an opening. The mounting plate 10 of the fiber pulling device 100 covers the opening. The laser generator is disposed outside the housing, and the processing head 300 is disposed within the housing. The housing provides dust protection. The fiber pulling device 100 allows the optical fiber 200 to be introduced into the housing and connected to the processing head 300. The structure is simple and easy to assemble.

[0070] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. An optical fiber pulling device, characterized in that: include: Mounting plate; A pulling assembly, movably mounted on the mounting plate along a first direction, the pulling assembly being used for pulling and fixing the optical fiber, one end of the optical fiber being used for connecting to the processing head; as well as, The driving mechanism is in transmission connection with the traction assembly and is used to drive the traction assembly to move along the first direction so that the optical fiber moves synchronously along the first direction.

2. The optical fiber pulling device according to claim 1, characterized in that: The driving mechanism comprises: A driving member, disposed on the mounting plate; a driving wheel, drivingly connected to the output end of the driving member; and A driven wheel and a transmission belt, wherein the transmission belt is connected to the driving wheel and the driven wheel; The traction assembly is connected to the transmission belt.

3. The optical fiber pulling device according to claim 1, wherein: The mounting plate is provided with a through slot extending along the first direction, The pulling assembly is provided with a through hole that is opposite to at least part of the through slot, and one end of the optical fiber passes through the through hole and the through slot in sequence and is connected to the processing head. When the pulling assembly moves along the first direction, it drives the optical fiber to move along the first direction in the through slot.

4. The optical fiber pulling device according to claim 3, characterized in that: The traction assembly covers a portion of the through slot along the first direction to divide the through slot into a first half slot and a second half slot. The optical fiber pulling device further includes a first telescopic cover for covering the first half slot and a second telescopic cover for covering the second half slot. One end of the first telescopic cover along the first direction is connected to an end of the first half slot away from the traction assembly, and the other end of the first telescopic cover along the first direction is connected to an end of the traction assembly along the first direction. One end of the second telescopic cover along the first direction is connected to one end of the second half slot away from the traction assembly, and the other end of the second telescopic cover along the first direction is connected to the other end of the traction assembly along the first direction.

5. The optical fiber pulling device according to claim 4, characterized in that: The size of the traction assembly along the first direction is smaller than the size of the through slot along the first direction, and the size of the traction assembly along the second direction is larger than the size of the through slot along the second direction; The second direction is arranged at an angle to the first direction.

6. The optical fiber pulling device according to claim 3, characterized in that: The traction assembly is provided with a brush, which extends into the through hole and abuts against the optical fiber to prevent dust from falling from the through hole to below the mounting plate.

7. The optical fiber pulling device according to any one of claims 3 to 6, characterized in that: The optical fiber pulling device further comprises: A first guide rail is provided on one end of the mounting plate close to the through slot along the second direction, and the first guide rail extends along the first direction; a second guide rail, disposed on the other end of the mounting plate close to the through slot along the second direction, and extending along the first direction; a first slider, slidably mounted on the first guide rail; and a second slider, slidably mounted on the second guide rail; One end of the traction assembly is connected to the first slider, and the other end of the traction assembly is connected to the second slider; The second direction is arranged at an angle to the first direction.

8. The optical fiber pulling device according to claim 7, characterized in that: The traction assembly includes: a cover plate, wherein one end of the cover plate along the second direction is connected to the first slider, and the other end of the cover plate is connected to the second slider, and the through hole is formed on the cover plate; and A fixing seat is arranged on the cover plate, and the optical fiber is fixedly installed on the fixing seat.

9. The optical fiber pulling device according to claim 8, characterized in that: The traction assembly further includes an elastic member, and the fixing seat is movably arranged on the cover plate. When one end of the optical fiber connected to the processing head is subjected to tension, the fixing seat descends; when the tension is removed, the elastic member can provide elastic force to make the fixing seat rise; The lifting direction of the fixing seat is set at an angle to the first direction and the second direction.

10. A laser processing device, characterized in that: The optical fiber pulling device comprises a laser generator, a processing head, an optical fiber, and the optical fiber pulling device according to any one of claims 1 to 9. The optical fiber is fixed on the pulling assembly of the optical fiber pulling device, and one end of the optical fiber is connected to the processing head, and the other end is connected to the laser generator.

Images