Positioning jig and laser welding equipment

Abstract

The utility model belongs to the technical field of battery processing, and particularly relates to a positioning jig and laser welding equipment, and the positioning jig comprises a mounting frame, a positioning mechanism, a positioning mechanism and a laser welding mechanism, the positioning follow-up assembly comprises a positioning plate, the positioning plate is movably mounted on the mounting frame, a first welding hole is formed in the positioning plate, the surface of the product is covered with the positioning plate so that the product can be positioned, and the positioning plate can move along with movement of the product; the laser welding equipment comprises the positioning jig and further comprises a moving device and a welding device, a carrier used for containing a product is arranged on the moving device, an elastic piece is arranged at the bottom of the carrier, and the positioning jig is arranged above the moving device and used for conducting upper positioning on the product in the carrier. The welding device is used for welding a product below the positioning jig, the positioning plate can move along with movement of the battery, a top cover of the battery is prevented from being scraped by the positioning plate, and therefore the yield of the battery is increased.

Description

Technical Field

[0001] The present application belongs to the field of battery processing technology, and more specifically, relates to a positioning fixture and laser welding equipment. Background Art

[0002] Before the top cover of the power battery is pre-welded, the upper surface needs to be positioned, and then the side of the power battery needs to be pushed to achieve the long side positioning and short side positioning of the power battery. During this process, the top cover surface of the power battery and the positioning plate of the top cover pre-welding fixture are always in contact. When the power battery is positioned on the long side and short side, the top cover surface of the power battery will rub against the lower surface of the positioning plate. Excessive friction will cause scratches and damage to the top cover surface of the power battery, affecting the quality of the battery. Utility Model Content

[0003] The embodiments of the present application provide a positioning fixture and a laser welding device, wherein the positioning plate can move with the movement of the battery to prevent the top cover of the battery from being scratched by the positioning plate, thereby improving the yield rate of the battery.

[0004] The technical solution adopted in the embodiment of the present application is: to provide a positioning fixture, including:

[0005] A mounting frame, provided with a through hole for passing the product;

[0006] The positioning follower assembly includes a positioning plate, which is movably mounted on the mounting frame, a first welding hole is provided on the positioning plate, the positioning plate is covered on the surface of the product to achieve product positioning, and the positioning plate can move with the movement of the product.

[0007] Optionally, the positioning follower assembly further includes an anti-movement member, which is mounted on the positioning plate and is used to abut against the mounting frame after the positioning plate moves to prevent the positioning plate from moving.

[0008] Optionally, the anti-displacement part includes a lifting drive part and an inserting part, the mounting frame is provided with a socket for plugging with the inserting part, the lifting drive part is installed on the positioning plate, the lifting drive part is transmission connected with the inserting part, and the lifting drive part is used to drive the inserting part to be inserted into the socket or away from the socket.

[0009] Optionally, the positioning follower assembly further includes a guide member, wherein the guide member is mounted on the mounting frame, and the positioning plate is connected to the guide member.

[0010] Optionally, the positioning follower assembly further includes a reset drive component, which is mounted on the mounting frame and is used to push the positioning plate to reset after the product is welded.

[0011] Optionally, the positioning fixture further includes a first positioning component, which is installed on the mounting frame and is located between the positioning plate and the mounting frame, and is used to push the product in the through hole of the mounting frame to achieve short side positioning of the product.

[0012] Optionally, the first positioning assembly includes a first pushing member and a first reference member, which are respectively installed on both sides of the through hole of the mounting frame, and the first pushing member pushes the product to move toward the first reference member so that the product abuts against the first reference member, thereby achieving short side positioning of the product.

[0013] Optionally, the first reference member includes a mounting portion, a fixing portion and an abutting portion, the mounting portion is mounted on the mounting frame, the abutting portion is used to abut against one side of the product, the mounting portion is provided with a mounting hole threadedly connected to the fixing portion, the fixing portion is provided with an adjustment hole, the fixing portion is sequentially passed through the adjustment hole and the mounting hole, and the head of the fixing portion abuts against the edge of the adjustment hole to achieve connection between the mounting portion and the abutting portion.

[0014] Optionally, the positioning fixture further includes a second positioning component, which is installed on the mounting frame and is located between the positioning plate and the mounting frame, and is used to push the product in the through hole of the mounting frame to achieve long side positioning of the product.

[0015] Optionally, the second positioning assembly includes a second pushing member and a second reference member, which are respectively located on both sides of the first welding hole. The second pushing member pushes the product to move toward the second reference member so that the product abuts against the second reference member, thereby achieving long side positioning of the product.

[0016] Optionally, the second pushing member includes a second driving portion, a second pushing portion and a second fixing portion, the second fixing portion is provided with a slot matching with the driving shaft of the second driving portion, the driving shaft of the second driving portion is clamped in the slot, the second fixing portion is detachably connected to the second pushing portion, and the second pushing portion is used to abut against the side wall of the product to push the product.

[0017] Optionally, the first pushing member also includes a moving part, a second welding hole is provided on the moving part, the guide member is installed on the moving part, the guiding direction of the guide member is the same as the moving direction of the second positioning component, the second positioning component is installed on the moving part, and the positioning plate is installed on the guide member to prevent the positioning plate from shifting during the long side positioning process.

[0018] Optionally, a buffer member is disposed on one side of the second reference member and the first reference member to prevent the second pushing member or the first pushing member from overshooting.

[0019] An embodiment of the present application also provides a laser welding device, including the positioning jig described above, and also including a moving device and a welding device, wherein the moving device is provided with a carrier for placing products, and an elastic member is provided at the bottom of the carrier, the positioning jig is arranged above the moving device for positioning the product in the carrier, and the welding device is used to weld the product under the positioning jig.

[0020] The positioning fixture and laser welding equipment provided by the embodiment of the present application have the following beneficial effects: after the top cover of the product abuts against the positioning plate, the positioning plate can move with the movement of the product due to the static friction between the positioning plate and the top cover of the product. After the product moves, the relative position of the positioning plate and the product remains unchanged, so that the top cover of the product can be prevented from being scratched by the positioning plate, thereby improving the yield rate of the product.

[0021] Since the laser welding equipment of the embodiment of the present application includes the above-mentioned positioning fixture, it has the beneficial effects brought by the above-mentioned positioning fixture, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 paying creative labor.

[0023] Figure 1 A schematic diagram of a three-dimensional structure of a positioning fixture provided in an embodiment of the present application from one viewing angle;

[0024] Figure 2 A schematic diagram of the three-dimensional structure of the positioning fixture provided in an embodiment of the present application from another perspective;

[0025] Figure 3 A schematic diagram of the three-dimensional structure of the second pusher used in the embodiment of the present application;

[0026] Figure 4 This is a schematic diagram of the three-dimensional structure of the first reference member used in the embodiment of the present application.

[0027] Among them, the reference numerals in the figure are:

[0028] 1. Mounting frame;

[0029] 2. A second positioning component;

[0030] 21. a second pushing member; 22. a second reference member;

[0031] 211, second driving part; 212, second pushing part; 213, second fixing part; 2131, card slot;

[0032] 3. A first positioning component;

[0033] 31. a first pusher; 32. a first reference member;

[0034] 321, mounting portion; 322, abutting portion; 3221, adjusting hole;

[0035] 311, a first positioning unit; 312, a first driving unit;

[0036] 313. Mobile Department;

[0037] 4. Positioning follower assembly; 41. Positioning plate; 411. First welding hole; 42. Reset drive member; 43. Anti-movement member; 431. Lifting drive member; 432. Insertion member; 44. Guide member;

[0038] 5. Buffer parts. DETAILED DESCRIPTION

[0039] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0040] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can 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 can be directly connected to the other element or indirectly connected to the other element.

[0041] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present 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 should not be understood as a limitation on the present application.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0043] See also Figure 1 and Figure 2 , the positioning fixture provided in the embodiment of the present application is now described. The positioning fixture provided in the embodiment of the present application includes a mounting frame 1 and a positioning follower assembly 4. The mounting frame 1 is provided with a through hole for passing the product, and the positioning follower assembly 4 includes a positioning plate 41, which is movably mounted on the mounting frame, and the positioning plate 41 is provided with a first welding hole 411. The positioning plate 41 is covered on the surface of the product to achieve the positioning of the product, and the positioning plate 41 can move with the movement of the product.

[0044] The product in the embodiment of the present application can be a battery, a battery cell or other product, and the positioning plate 41 can be covered on the side or upper surface of the product to position the product for welding. The positioning fixture in the embodiment of the present application is mainly used to position the battery with a top cover, and is covered on the upper surface of the battery top cover to position the battery top cover when welding.

[0045] After the positioning fixture of the embodiment of the present application is in contact with the positioning plate 41, the positioning plate 41 can move with the movement of the product due to the static friction between the positioning plate 41 and the top cover of the product. After the product moves, the relative position of the positioning plate and the product remains unchanged. In this way, the top cover of the product can be prevented from being scratched by the positioning plate 41, thereby improving the yield rate of the product.

[0046] The positioning follower assembly 4 further includes an anti-movement member 43 , which is mounted on the positioning plate 41 . The anti-movement member 43 is used to abut against the mounting frame 1 after the positioning plate 41 moves to prevent the positioning plate 41 from moving.

[0047] Since the positioning plate 41 may be displaced due to collision with other devices during the welding process, the product abutting against the positioning plate 41 may be moved, affecting the welding effect. The anti-movement member 43 can prevent the positioning plate 41 from moving during the welding process, thereby improving the stability of the positioning plate 41 and improving the welding effect.

[0048] The anti-movement member 43 in the embodiment of the present application may be a telescopic rod telescopically arranged on the positioning plate 41, and an anti-slip protrusion is arranged on the end of the telescopic rod close to the mounting frame 1. After the positioning plate 41 moves, the telescopic rod moves toward the mounting frame 1 so that the anti-slip protrusion abuts against the mounting frame 1, thereby preventing the positioning plate 41 from moving. When the positioning plate 41 needs to move, the telescopic rod retracts toward the positioning plate 41.

[0049] Preferably, the anti-displacement member 43 includes a lifting drive part 431 and an insert part 432, the mounting frame 1 is provided with a socket for plugging into the insert part 432, the lifting drive part 431 is installed on the positioning plate 41, the lifting drive part 431 is transmission-connected with the insert part 432, and the lifting drive part 431 is used to drive the insert part 432 to be inserted into the socket or away from the socket.

[0050] The plug part 432 in the embodiment of the present application is configured as a plug rod. The socket may be a silicone block or a mounting seat provided with a socket, preferably a mounting seat provided with a socket. The lifting drive unit 431 may be a cylinder, an electric cylinder or a linear motor, preferably a cylinder. The plug rod is connected to the drive shaft of the cylinder, and the cylinder drives the plug rod to move away from or towards the mounting seat. When the plug rod is close to the mounting seat, one end of the plug rod can be inserted into the socket of the mounting seat to prevent the positioning plate 41 from moving. When the plug rod is away from the mounting seat, it is convenient for the positioning plate 41 to move.

[0051] The positioning follower assembly 4 further includes a guide member 44 , which is mounted on the mounting frame 1 , and the positioning plate 41 is connected to the guide member 44 .

[0052] The guide member 44 can prevent the positioning plate 41 from shaking or deflecting during movement, thereby affecting the product positioning. The guide member can include a guide rail and a slider, the guide rail is mounted on the mounting frame 1, the slider is slidably connected to the guide rail, and the positioning plate 41 is mounted on the slider.

[0053] The positioning follower assembly 4 further includes a reset driving member 42 , which is mounted on the mounting frame 1 and is used to push the positioning plate 41 to reset after the product is welded.

[0054] The reset drive 42 can push the positioning plate 41 to reset so that the positioning plate 41 abuts against the next product. The reset drive 42 in the embodiment of the present application can be a motor, an electric cylinder or a cylinder, preferably a cylinder, and the drive shaft of the cylinder pushes the side of the positioning plate 41 to reset it along the original moving path.

[0055] The positioning fixture further includes a first positioning component 3, which is installed on the mounting frame 1 and is located between the positioning plate 41 and the mounting frame 1, and is used to push the product in the through hole of the mounting frame 1 to achieve short side positioning of the product.

[0056] The first positioning assembly 3 in the embodiment of the present application may include pushers arranged on both sides of the through hole. The pushers may be motors, electric cylinders or air cylinders. Taking the air cylinder as an example, the drive shaft of the air cylinder pushes the opposite sides of the product to achieve product positioning.

[0057] Preferably, the first positioning assembly 3 includes a first pushing member 31 and a first reference member 32, and the first pushing member 31 and the first reference member 32 are respectively installed on both sides of the through hole of the mounting frame 1, and the first pushing member 31 pushes the product to move toward the first reference member 32 so that the product abuts against the first reference member 32, thereby realizing the short side positioning of the product.

[0058] The first pusher 31 in the embodiment of the present application may be an electric cylinder, an air cylinder or a linear motor, and the first reference member 32 may be a reference plate or a reference block. The short side positioning direction is the short side length direction of the surface of the product close to the side of the positioning plate. Taking the air cylinder and the reference plate as an example, the drive shaft of the air cylinder pushes the product to move close to the reference plate along the length direction of the short side of the product, so that the product is sandwiched between the drive shaft and the reference plate, thereby realizing the short side positioning of the product.

[0059] See also Figure 4 Preferably, the first reference member 32 includes a mounting portion 321, a fixing portion and a contact portion 322, the mounting portion 321 is mounted on the mounting frame 1, the contact portion 322 is used to contact with one side of the product, the mounting portion 321 is provided with a mounting hole threadedly connected to the fixing portion, the fixing portion is provided with an adjustment hole 3221, the fixing portion is sequentially penetrated through the adjustment hole 3221 and the mounting hole, and the head of the fixing portion is contacted with the edge of the adjustment hole 3221 to realize the connection between the mounting portion 321 and the contact portion 322.

[0060] The mounting hole in the embodiment of the present application is a threaded hole, the fixing part is a screw, the adjustment hole 3221 is a waist-shaped hole, the screw is threadedly connected to the threaded hole and the head of the screw abuts against the edge of the adjustment hole 3221 to fix the position of the fixing part on the mounting part 321. The fixing part can adjust the short side reference position of the product along the length direction of the adjustment hole 3221.

[0061] The positioning fixture further includes a second positioning component 2, which is installed on the mounting frame 1 and is located between the positioning plate 41 and the mounting frame 1, and is used to push the product in the through hole of the mounting frame 1 to achieve long side positioning of the product.

[0062] The second positioning assembly 2 in the embodiment of the present application may include pushers disposed on both sides of the through hole. The pushers may be motors, electric cylinders or air cylinders. Taking the air cylinder as an example, the drive shaft of the air cylinder pushes the opposite sides of the product to achieve the long side positioning of the product. The long side positioning direction is the length direction of the long side of the surface of the product close to the side of the positioning plate. Generally, the long side positioning direction is perpendicular to the short side positioning direction.

[0063] Preferably, the second positioning assembly 2 includes a second pushing member 21 and a second reference member 22, and the second pushing member 21 and the second reference member 22 are respectively located on both sides of the first welding hole 411. The second pushing member 21 pushes the product to move toward the second reference member 22 so that the product abuts against the second reference member 22, thereby realizing the long side positioning of the product.

[0064] The second pusher 21 in the embodiment of the present application may be an electric cylinder, an air cylinder or a linear motor, and the second reference member 22 may be a reference plate or a reference block. Taking the air cylinder and the reference plate as an example, the drive shaft of the air cylinder pushes the product to move toward the reference plate so that the product is sandwiched between the drive shaft and the reference plate, thereby realizing the long side positioning of the product.

[0065] See also Figure 3 The second pushing member 21 includes a second driving portion 211, a second pushing portion 212 and a second fixing portion 213. The second fixing portion 213 is provided with a slot 2131 that matches the driving shaft of the second driving portion 211. The driving shaft of the second driving portion 211 is clamped in the slot 2131. The second fixing portion 213 is detachably connected to the second pushing portion 212. The second pushing portion 212 is used to abut against the side wall of the product to push the product.

[0066] Since the second pushing part 212 is a wearing part, if the second pushing part 212 is directly connected to the second driving part 211 in transmission, when the second pushing part 212 is damaged and needs to be replaced, the positioning plate 41 needs to be removed to remove the second pushing part 212. However, the installation accuracy of the positioning plate 41 is relatively high, resulting in a long time spent on disassembling and assembling the second pushing part 212, thereby reducing work efficiency.

[0067] The second fixing portion 213 in the embodiment of the present application is connected to the second pushing portion 212 by a detachable connecting component such as bolts or screws. When removing the second pushing portion 212, only the second fixing portion 213 needs to be removed to separate the second driving portion 211 from the second pushing portion 212, without removing the positioning plate 41, thereby improving work efficiency.

[0068] The second reference member 22 in the embodiment of the present application may adopt the same structure as the first reference member 32. The positioning plate may be provided with an avoidance groove on one side of the positioning plate close to the second pusher 21 to facilitate the replacement of the second pusher 212.

[0069] The first pushing member 31 also includes a moving part 313, a second welding hole is provided on the moving part 313, the guide member 44 is installed on the moving part 313, the guiding direction of the guide member 44 is the same as the moving direction of the second positioning component 2, the second positioning component 2 is installed on the moving part 313, and the positioning plate 41 is installed on the guide member 44 to prevent the positioning plate 41 from shifting during the long side positioning process.

[0070] The moving part 313 in the embodiment of the present application enables the first positioning component 3 to push the second positioning component 2 to move when positioning the short side of the product, and then the second positioning component 2 positions the long side of the product. This can prevent the second positioning component 2 from destroying the already completed short side positioning of the product when positioning the long side.

[0071] The guide member 44 in the embodiment of the present application is used to guide the positioning plate 41 to move along with the positioning of the long side of the product. In order to improve the stability of the positioning of the short side of the product, a short side guide member can be provided below the moving part 313 .

[0072] A buffer member 5 is disposed on one side of the second reference member 22 and the first reference member 32 to prevent the second pushing member 21 or the first pushing member 31 from overshooting.

[0073] The buffer member 5 in the embodiment of the present application may include an abutment plate, an elastic member and a mounting member. The mounting member is installed on the mounting frame 1. The elastic member is respectively connected to the mounting member and the abutment plate. The abutment plate is used to abut against the positioning plate 41. It can also be a silicone member or a sponge member or other member with elastic buffering.

[0074] An embodiment of the present application also provides a laser welding device, including the positioning jig described above, and also including a moving device and a welding device, wherein the moving device is provided with a carrier for placing products, and an elastic member is provided at the bottom of the carrier, the positioning jig is arranged above the moving device for positioning the product in the carrier, and the welding device is used to weld the product under the positioning jig.

[0075] Since the laser welding equipment of the embodiment of the present application includes the positioning fixture in any of the above embodiments, it has the beneficial effects brought by the positioning fixture in any of the above embodiments, which will not be described in detail here.

[0076] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A positioning fixture, characterized in that: include: A mounting frame, provided with a through hole for passing the product; The positioning follower assembly includes a positioning plate, which is movably mounted on the mounting frame, a first welding hole is provided on the positioning plate, the positioning plate is covered on the surface of the product to achieve product positioning, and the positioning plate can move with the movement of the product.

2. The positioning fixture according to claim 1, characterized in that: The positioning follower assembly further comprises an anti-movement member, which is mounted on the positioning plate and is used for abutting against the mounting frame after the positioning plate moves to prevent the positioning plate from moving.

3. The positioning fixture according to claim 2, characterized in that: The anti-displacement part includes a lifting drive part and an insertion part. The mounting frame is provided with a socket for plugging into the insertion part. The lifting drive part is installed on the positioning plate. The lifting drive part is transmission-connected with the insertion part. The lifting drive part is used to drive the insertion part to be inserted into the socket or away from the socket.

4. The positioning fixture according to claim 1, characterized in that: The positioning follower assembly also includes a guide member, which is installed on the mounting frame, and the positioning plate is connected to the guide member.

5. The positioning fixture according to claim 1, characterized in that: The positioning follower assembly also includes a reset drive component, which is installed on the mounting frame and is used to push the positioning plate to reset after the product is welded.

6. The positioning fixture according to claim 4, characterized in that: It also includes a first positioning component, which is installed on the mounting frame and located between the positioning plate and the mounting frame, and is used to push the product in the through hole of the mounting frame to achieve short side positioning of the product.

7. The positioning fixture according to claim 6, characterized in that: The first positioning assembly includes a first pushing member and a first reference member, which are respectively installed on both sides of the through hole of the mounting frame. The first pushing member pushes the product to move toward the first reference member so that the product abuts against the first reference member, thereby realizing the short side positioning of the product.

8. The positioning fixture according to claim 7, characterized in that: The first reference member includes a mounting portion, a fixing portion and an abutting portion, the mounting portion is mounted on the mounting frame, the abutting portion is used to abut against one side of the product, the mounting portion is provided with a mounting hole threadedly connected to the fixing portion, the fixing portion is provided with an adjustment hole, the fixing portion is sequentially penetrated through the adjustment hole and the mounting hole, and the head of the fixing portion abuts against the edge of the adjustment hole to achieve the connection between the mounting portion and the abutting portion.

9. The positioning fixture according to claim 7, characterized in that: It also includes a second positioning component, which is installed on the mounting frame and located between the positioning plate and the mounting frame, and is used to push the product in the through hole of the mounting frame to achieve long side positioning of the product.

10. The positioning fixture according to claim 9, characterized in that: The second positioning assembly includes a second pushing member and a second reference member, which are respectively located on both sides of the first welding hole. The second pushing member pushes the product to move toward the second reference member so that the product abuts against the second reference member, thereby achieving long side positioning of the product.

11. The positioning fixture according to claim 10, characterized in that: The second pushing member includes a second driving portion, a second pushing portion and a second fixing portion. The second fixing portion is provided with a slot matching the driving shaft of the second driving portion. The driving shaft of the second driving portion is clamped in the slot. The second fixing portion is detachably connected to the second pushing portion. The second pushing portion is used to abut against the side wall of the product to push the product.

12. The positioning fixture according to claim 11, characterized in that: The first pushing member also includes a moving part, a second welding hole is provided on the moving part, the guide member is installed on the moving part, the guiding direction of the guide member is the same as the moving direction of the second positioning component, the second positioning component is installed on the moving part, and the positioning plate is installed on the guide member to prevent the positioning plate from shifting during the long side positioning process.

13. The positioning fixture according to claim 12, characterized in that: A buffer is disposed on one side of the second reference member and the first reference member to prevent the second pushing member or the first pushing member from overshooting.

14. A laser welding device, characterized in that: The invention comprises the positioning jig as described in any one of claims 1 to 13, and further comprises a moving device and a welding device, wherein the moving device is provided with a carrier for placing products, and an elastic member is provided at the bottom of the carrier, the positioning jig is arranged above the moving device for positioning the products in the carrier, and the welding device is used for welding the products under the positioning jig.

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