Welding jig and production equipment

Abstract

The utility model discloses a welding jig and production equipment. The welding jig comprises a base, a debugging tool, a first positioning assembly and a second positioning assembly. The debugging tool is arranged on the base and is used for limiting a top cover assembly connected with the battery; the first positioning assembly is connected with the base, and the first positioning assembly is used for fixing the debugging tool in the first direction; the second positioning assembly is connected with the base and used for fixing the debugging tool in the second direction, and the first direction is perpendicular to the second direction. The debugging tool and the top cover assembly only need to be connected in a limiting mode, so that the welding process of the top cover assembly and the shell is avoided, and the problem that the welded shell cannot be reused is solved. Besides, the debugging tool is a solid product, the strength of the debugging tool is higher than that of the hollow shell, the debugging tool is not prone to deformation under the fixing effect of the first positioning assembly and the second positioning assembly, and therefore the accuracy and consistency of follow-up welding are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of production equipment, especially relates to a welding fixture and production equipment. BACKGROUND

[0002] At present, in the lithium battery industry sealing nail welding equipment debugging mass production stage, mainly using semi-finished product battery carries out laser welding track debugging and metallographic welding effect detection, and the welding metallographic detection needs to be carried out after the battery top cover assembly is disassembled, and the process is relatively complex.

[0003] The original mode has obvious defects, and the semi-finished product battery is used for welding debugging, and once the battery sealing port is welded, it cannot be reused, causing resource waste. INVENTION CONTENTS

[0004] One purpose of the utility model is to provide a welding fixture and production equipment.

[0005] In order to achieve the above purpose, a kind of scheme provided by the utility model is: welding fixture includes pedestal, debugging tool, first positioning assembly and second positioning assembly;Debugging tool is arranged on pedestal, and debugging tool is used to limit the top cover assembly of battery;First positioning assembly is connected with pedestal, and first positioning assembly is used to fix debugging tool from first direction;Second positioning assembly is connected with pedestal, and second positioning assembly is used to fix debugging tool from second direction, and first direction and second direction are perpendicular to each other.

[0006] Optionally, the debugging tool includes a main body portion and a blocking portion, the main body portion is connected with the pedestal, the blocking portion is arranged at an end of the main body portion away from the pedestal, the blocking portion and the main body portion surround to form a limiting groove, and the limiting groove is used to limit the top cover assembly.

[0007] Optionally, the width of the blocking portion gradually decreases in the direction away from the pedestal.

[0008] Optionally, the blocking portions are oppositely arranged along the first direction, and / or the blocking portions are oppositely arranged along the second direction.

[0009] Optionally, an avoiding groove is formed at an end of the debugging tool away from the pedestal, the avoiding groove penetrates through the main body portion and the blocking portion along the first direction, and the avoiding groove and the limiting groove are communicated.

[0010] Optionally, a plurality of material reducing holes are formed on the main body portion along the first direction and are spaced apart from each other, and the material reducing holes are arranged at intervals with the limiting groove.

[0011] Optionally, the first positioning assembly includes a push rod and a push rod, the push rod is threadedly connected with the pedestal, the push rod is arranged on the pedestal and abuts against the debugging tool from the first direction, and the push rod is used to hold the push rod.

[0012] Optionally, the first positioning assembly further comprises a fixing member, a waist-shaped hole is formed in the push seat, and the fixing member passes through the waist-shaped hole and is connected with the base.

[0013] Optionally, the second positioning assembly comprises a sliding rod, a spring and a fixing seat, the sliding rod is connected with the base, the fixing seat is slidingly connected with the sliding rod, the sliding rod passes through the spring, the spring is arranged between the fixing seat and the base, and the fixing seat is used for elastically abutting against the debugging tool from the second direction.

[0014] The utility model also includes a production equipment, production equipment includes: welding device and welding jig of any one of above, welding device is used for welding on the top cover assembly of welding jig.

[0015] The utility model discloses beneficial effect lies in: the casing and top cover assembly of battery are the welding connection, uses debugging tool to replace the casing and top cover assembly connection of battery, and debugging tool and top cover assembly only need to be limited and connected, thereby avoiding the welding process of top cover assembly and casing, and further avoiding the problem that the casing after welding can not be reused. In addition, debugging tool is solid product, and the strength of debugging tool is greater than that of hollow casing, and debugging tool is not easy to deform under the fixing effect of the first positioning assembly and the second positioning assembly, thereby ensuring the accuracy and consistency of subsequent welding. The first positioning assembly and the second positioning assembly fix the debugging tool from the first direction and the second direction respectively, so that the debugging tool can be detachable, so that different debugging tools can be replaced according to different top cover assemblies, so as to improve the application range of the welding jig. ACCURATE DESCRIPTION

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the structure shown in these drawings without creating creative labor.

[0017] Figure 1 It is the top view schematic diagram of the welding jig provided by the utility model embodiment;

[0018] Figure 2 It is the side view schematic diagram of the welding jig provided by the utility model embodiment;

[0019] Figure 3 It is the three-dimensional schematic diagram of the debugging tool provided by the utility model embodiment;

[0020] Figure 4 It is the three-dimensional schematic diagram of the debugging tool provided by the utility model embodiment.

[0021] Reference numerals: Base 10, Debugging fixture 20, Limiting groove 201, Clearance groove 203, Material reduction hole 205, Main body 21, Stop 23, First positioning component 30, Push seat 31, Push rod 33, Fixing component 35, Second positioning component 40, Slide rod 41, Spring 43, Fixing seat 45, Top cover component 00. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 and Figure 2 As shown, Figure 1 This is a top view schematic diagram of the welding fixture provided in an embodiment of this utility model. Figure 2 This is a side view of the welding fixture provided in an embodiment of the present invention.

[0024] This utility model protects a production equipment, which includes a welder and a welding fixture. The welding fixture is used to fix the top cover assembly 00 of the battery, and the welder is used to weld the top cover assembly 00 on the welding fixture. It can weld the terminal post, the liquid injection hole, the explosion-proof valve, etc.

[0025] The welding fixture includes a base 10, an adjustment fixture 20, a first positioning component 30, and a second positioning component 40. The base 10 serves as the chassis of the welding fixture, supporting and fixing other parts. The adjustment fixture 20 is mounted on the base 10 and is used to limit the connection of the top cover assembly 00 of the battery. The adjustment fixture 20 simulates the connection between the battery casing and the top cover assembly 00; that is, the adjustment fixture 20 and the top cover assembly 00 together form a complete battery. The first positioning component 30 is connected to the base 10 and is used to fix the adjustment fixture 20 from a first direction, such as... Figure 1 The first direction shown can be the thickness direction of the debugging fixture 20. The first positioning component 30 clamps and fixes the debugging fixture 20 in the first direction. The second positioning component 40 is connected to the base 10 and is used to fix the debugging fixture 20 from a second direction, such as... Figure 1 The second direction shown can be the length direction of the debugging fixture 20. The second positioning component 40 clamps and fixes the debugging fixture 20 from the second direction. The first direction and the second direction are perpendicular to each other. The perpendicularity referred to here includes absolute perpendicularity (the angle between them is 90 degrees) and approximately perpendicularity (the angle between them is approximately 90 degrees).

[0026] In this embodiment, the battery casing and top cover assembly 00 are welded together. An adjustment fixture 20 is used to connect the battery casing and top cover assembly 00, replacing the battery casing. The adjustment fixture 20 and top cover assembly 00 only require a limiting connection, thus avoiding the welding process between the top cover assembly 00 and the casing, and consequently preventing the problem of the welded casing being unusable. Furthermore, the adjustment fixture 20 is a solid product, possessing greater strength than a hollow casing and less prone to deformation under the fixing action of the first positioning component 30 and the second positioning component 40, thereby ensuring the accuracy and consistency of subsequent welding. The first positioning component 30 and the second positioning component 40 fix the adjustment fixture 20 from the first direction and the second direction respectively, achieving the purpose of detachability of the adjustment fixture 20. This facilitates the replacement of different adjustment fixtures 20 for different top cover assemblies, thereby improving the applicability of the welding fixture.

[0027] Please see Figures 1 to 3 As shown, Figure 3 This is a three-dimensional schematic diagram of the debugging fixture 20 provided in this embodiment of the utility model.

[0028] The debugging fixture 20 includes a main body 21 and a stop 23. The main body 21 is connected to the base 10. The stop 23 is located at the end of the main body 21 away from the base 10. The stop 23 and the main body 21 form a limiting groove 201, which is used to limit the top cover assembly 00. During use, the top cover assembly 00 is placed in the limiting groove 201, and the peripheral side of the top cover assembly 00 abuts against the stop 23. The top cover assembly 00 can be connected to the main body 21 or not. The stop 23 limits the top cover assembly 00 to prevent it from moving and causing inaccurate welding. During the fixing process of the debugging fixture 20, the first positioning component 30 and the second positioning component 40 fix the main body 21 from the first direction and the second direction, respectively, so that the main body 21 is stationary relative to the base 10.

[0029] Please see Figures 1 to 4 As shown, Figure 4 This is a three-dimensional schematic diagram of the debugging fixture 20 provided in this embodiment of the utility model.

[0030] In one embodiment, the width of the stop 23 gradually decreases in the direction away from the base 10, that is, the stop 23 has a structure that is smaller at the top and larger at the bottom, and an inclined slope is formed on the side of the stop 23 near the limiting groove 201. During the installation process, the top cover assembly 00 will gradually slide in along the inclined slope and hold against a specific point on the inclined slope to maintain balance. The advantage of this design is that the top cover assembly 00 may have dimensional errors during the production process, that is, deviate from the standard size, being too large or too small. The stop 23 can allow a certain range of dimensional errors in the top cover assembly 00 to adapt to top cover assemblies 00 of different sizes, thereby improving the adaptation efficiency of the debugging fixture 20.

[0031] For example, when the size of the top cover assembly 00 is larger than the standard size, the top cover assembly 00 holding stop 23 is positioned higher; when the size of the top cover assembly 00 is smaller than the standard size, the top cover assembly 00 holding stop 23 is positioned lower.

[0032] In one embodiment, the stop 23 is disposed opposite to each other along a first direction, and / or the stop 23 is disposed opposite to each other along a second direction.

[0033] This embodiment includes three schemes: 1. A stop 23 is provided only in the first direction, and the stop 23 is located on opposite sides of the main body 21. The stop 23 is arranged opposite to the main body 21 to form a limiting groove 201; 2. A stop 23 is provided only in the second direction, and the stop 23 is located on opposite sides of the main body 21. The stop 23 is arranged opposite to the main body 21 to form a limiting groove 201; 3. A stop 23 is provided in both the first and second directions. The stop 23 is connected to each other to form a ring. The stop 23 and the main body 21 form a limiting groove 201.

[0034] All of the above-described methods for constructing the limiting groove 201 are protected in this embodiment, and each scheme has its own advantages. In Scheme 1, the limiting groove 201 is open along the second direction, thus facilitating the user to remove the top cover assembly 00 from the second direction. In Scheme 2, the limiting groove 201 is open along the first direction, thus facilitating the user to remove the top cover assembly 00 from the first direction. In Scheme 3, the limiting groove 201 is closed along both the first and second directions, thus allowing the top cover assembly 00 to be supported from both directions.

[0035] In one embodiment, the end of the debugging fixture 20 away from the base 10 is provided with a clearance groove 203. The clearance groove 203 passes through the main body 21 and the stop 23 along the first direction, and the clearance groove 203 is connected to the limiting groove 201. The clearance groove 203 can be U-shaped, V-shaped, etc. During the debugging process, after the person places the top cover assembly 00, their fingers can be withdrawn from the clearance groove 203. In this way, the person can accurately place the top cover assembly 00, and avoids placing the top cover assembly 00 on the debugging fixture 20 by discarding it at the last moment, which would result in the top cover assembly 00 not being placed flat enough.

[0036] The number of clearance slots 203 can be one or two, etc. When there are more than two clearance slots 203, multiple clearance slots 203 can be arranged at intervals. The width of the clearance slot 203 is greater than 3 cm, so as to accommodate at least one finger.

[0037] In one embodiment, the main body 21 has a plurality of spaced-apart material-reducing holes 205 along a first direction, and the material-reducing holes 205 and the limiting grooves 201 are spaced apart. The material-reducing holes 205 remove part of the material from the main body 21, thereby reducing the weight of the main body 21. Without affecting the overall strength of the debugging fixture 20, this reduces the workload of workers in handling the debugging fixture 20 and also saves on the manufacturing cost of the debugging fixture 20. In addition, when handling the debugging fixture 20, fingers can be inserted into the material-reducing holes 205, which provide a gripping point for workers, making it easier for them to handle the fixture.

[0038] In one embodiment, the first positioning component 30 includes a push base 31 and a push rod 33. The push rod 33 is threadedly connected to the base 10. When the push rod 33 rotates relative to the base 10, the push rod 33 can move forward or backward relative to the base 10 in a first direction. The push base 31 is disposed on the base 10 and abuts against the adjustment fixture 20 from the first direction. The push rod 33 is used to hold the push base 31 so that the push base 31 holds the adjustment fixture 20.

[0039] Before the debugging fixture 20 is placed on the base 10, the push rod 33 rotates relative to the base 10 and the push seat 31 moves backward to gradually open the clamping space so that the debugging fixture 20 can be placed in; after the debugging fixture is placed on the base 10, the push rod 33 rotates relative to the base 10 and moves forward to push the push seat 31 to clamp the debugging fixture 20.

[0040] In this embodiment, the adjustment fixture 20 is fixed in the first direction by means of a threaded engagement between the push rod 33 and the base 10. The threaded engagement allows for precise control of the push rod 33's forward distance, ensuring the strength of the push rod 33 against the push seat 31. Furthermore, the thread creates a self-locking effect when the push rod 33 stops rotating, preventing it from moving forward or backward and thus avoiding loosening of the adjustment fixture 20. Additionally, the push seat 31 is positioned between the push rod 33 and the adjustment fixture 20, through which the push rod 33 transmits force to the adjustment fixture 20. The push seat 31 has a larger contact area with the adjustment fixture 20 than the push rod 33, thus providing more stable support for the adjustment fixture 20.

[0041] The first positioning component 30 also includes a fixing member 35. The push base 31 has an oblong hole, which is elongated and racetrack-shaped, extending along a first direction. The fixing member 35 passes through the oblong hole and connects to the base 10. After the push rod 33 holds the push base 31, the push rod 33 will stop rotating. In order to prevent the push base 31 from moving and failing to hold the adjustment fixture 20, the fixing member 35 passes through the oblong hole and connects to the base 10, fixing the push base 31 in a specific position through rigid constraint, thus preventing the push base 31 from moving.

[0042] In one embodiment, the second positioning assembly 40 includes a slide rod 41, a spring 43, and a fixed seat 45. The slide rod 41 is connected to the base 10, and the fixed seat 45 is slidably connected to the slide rod 41. The fixed seat 45 can move relative to the slide rod 41 in a second direction. The slide rod 41 passes through the spring 43, and the slide rod 41 constrains the spring 43 in its radial direction to prevent the spring 43 from deforming in the radial direction of the slide rod 41. The spring 43 is disposed between the fixed seat 45 and the base 10. The fixed seat 45 is used to elastically support the adjustment fixture 20 from the second direction.

[0043] Before installation, manually pull the fixing seat 45. The fixing seat 45 pushes the spring 43, so that the spring 43 is in a compressed state. After the debugging fixture 20 is installed, release the fixing seat 45. The elastic force of the spring 43 pushes the fixing seat 45 toward the debugging fixture 20, and the fixing seat 45 supports the debugging fixture 20.

[0044] To facilitate understanding by those skilled in the art, the operating principle of this embodiment will be explained with specific implementation steps, but this does not constitute any limitation on the solution of this utility model.

[0045] 1. Manually pull the fixing seat 45, which pushes the spring 43, compressing the spring 43; 2. After inserting the debugging fixture 20, release the fixing seat 45. The elastic force of the spring 43 pushes the fixing seat 45 toward the debugging fixture 20, and the fixing seat 45 abuts against the debugging fixture 20 from the second direction; 3. The push rod 33 rotates relative to the base 10 and moves forward to abut the push seat 31 from the first direction to clamp the debugging fixture 20, thereby fixing the debugging fixture 20; 4. Place the top cover assembly 00 on the debugging fixture 20.

[0046] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0047] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0048] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0049] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A welding fixture, characterized in that, The welding fixture also includes: Base; A debugging fixture is mounted on the base and is used to limit the top cover assembly of the battery connection. A first positioning component is connected to the base, and the first positioning component is used to fix the debugging fixture from a first direction; and A second positioning component is connected to the base. The second positioning component is used to fix the debugging fixture from a second direction, wherein the first direction and the second direction are perpendicular to each other.

2. The welding fixture according to claim 1, characterized in that, The debugging fixture includes a main body and a stop. The main body is connected to the base. The stop is located at the end of the main body away from the base. The stop and the main body form a limiting groove, which is used to limit the top cover assembly.

3. The welding fixture according to claim 2, characterized in that, The width of the stop gradually decreases in the direction away from the base.

4. The welding fixture according to claim 2, characterized in that, The blocking portion is disposed opposite to each other along the first direction, and / or the blocking portion is disposed opposite to each other along the second direction.

5. The welding fixture according to claim 2, characterized in that, The debugging fixture has an avoidance groove at one end away from the base. The avoidance groove passes through the main body and the stop part along the first direction, and the avoidance groove is connected to the limiting groove.

6. The welding fixture according to claim 2, characterized in that, The main body has a plurality of spaced-apart material reduction holes along the first direction, and the material reduction holes and the limiting groove are spaced apart.

7. The welding fixture according to any one of claims 1-6, characterized in that, The first positioning component includes a push base and a push rod. The push rod is threadedly connected to the base. The push base is disposed on the base and abuts against the debugging fixture from the first direction. The push rod is used to support the push base.

8. The welding fixture according to claim 7, characterized in that, The first positioning component also includes a fixing member. The push base has a waist-shaped hole, and the fixing member passes through the waist-shaped hole and is connected to the base.

9. The welding fixture according to any one of claims 1-6, characterized in that, The second positioning component includes a slide rod, a spring, and a fixed seat. The slide rod is connected to the base, and the fixed seat is slidably connected to the slide rod. The slide rod passes through the spring, which is disposed between the fixed seat and the base. The fixed seat is used to elastically abut against the debugging fixture from the second direction.

10. A production equipment, characterized in that, The production equipment includes a welder and a welding fixture as described in any one of claims 1 to 9, wherein the welder is used to weld a top cover assembly on the welding fixture.

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