Battery fixture and battery welding apparatus

Abstract

The application discloses a battery jig and a battery welding device, wherein the battery jig is applied to the battery welding device, and the battery jig comprises a base, a clamp assembly and a first driving device; the clamp assembly comprises a connecting plate and a clamp unit; the clamp unit is movably connected with the connecting plate and has a clamping position and a releasing position relative to the battery; the connecting plate is rotatably installed on the base; the first driving device is arranged on the base; and the first driving device is further detachably and drivingly connected with the clamp unit to drive the clamp unit to switch between the clamping position and the releasing position. The technical scheme of the application realizes the separation of the first driving device and the clamp unit, and avoids the winding of the clamp assembly with pipelines or lines when the clamp assembly rotates relative to the base to adjust the relative position of the battery.

Description

Technical Field

[0001] This invention relates to the field of new energy battery manufacturing technology, and in particular to a battery fixture and battery welding equipment. Background Technology

[0002] With the development of society, new energy has developed rapidly in recent years. Batteries are a representative product of new energy. In the current battery production and processing process, the battery cell needs to be pushed into the casing first, and then the gap between the casing and the casing cover is welded to seal the battery cell.

[0003] In the battery welding process, a battery fixture is needed to clamp and fix the battery casing. Then, the battery fixture usually needs to rotate the battery to perform welding processing on different surfaces of the battery. During the welding process, the battery and the welding machine may need to rotate synchronously, or the battery may rotate before welding, and then rotate the battery again after welding, and so on.

[0004] In the prior art, battery fixtures typically include a clamping assembly and a driving device. The driving device is usually located on the clamping assembly and rotates with it to drive the clamping assembly to clamp or release the battery. As such, the driving device needs to be connected with pipelines or wires. However, the pipelines and wires may also rotate with the clamping assembly, which may cause them to become entangled, greatly affecting the safety of battery welding work. Summary of the Invention

[0005] The main objective of this invention is to provide a battery fixture that separates the first drive device from the clamping unit, thereby preventing the clamping assembly from becoming entangled with pipelines or lines when the clamping assembly rotates relative to the base to adjust the relative position of the battery.

[0006] To achieve the above objectives, the present invention provides a battery fixture, which includes a base, a clamping assembly, and a first driving device; wherein,

[0007] The clamping assembly includes a connecting plate and a clamping unit. The clamping unit is movably connected to the connecting plate and has a clamping position and a releasing position relative to the battery. The connecting plate is rotatably mounted on the base.

[0008] The first drive device is mounted on the base and is also detachably connected to the clamping unit to drive the clamping unit to switch between the clamping position and the releasing position.

[0009] In some embodiments of the present invention, the clamping unit includes a drive ring and an execution module; wherein,

[0010] The drive ring is rotatably mounted on the connecting plate. The first drive device is also detachably connected to the outer side of the drive ring. The execution module is movably disposed on the inner side of the drive ring. The inner side of the drive ring is connected to the execution module to drive the execution module to switch between the clamping position and the release position.

[0011] In some embodiments of the present invention, a force-receiving part is provided on the outer side of the drive ring, and the battery fixture further includes a transmission component. The transmission component is movably mounted on the connecting plate. The transmission component includes a drive part and a contact part. The drive part is drivenly connected to the force-receiving part, and the contact part is detachably drivenly connected to the first drive device.

[0012] In some embodiments of the present invention, the transmission member is provided with a guide rail along its length direction, the guide rail is slidably mounted on the connecting plate, and the contact portion includes two end faces provided in the length direction of the transmission member;

[0013] The first driving device includes two driving units, which are respectively disposed on both sides of the clamp assembly and respectively capable of being driven to abut against the two end faces.

[0014] In some embodiments of the present invention, the connecting plate is provided with a sliding part, the sliding part including two spaced sliders, each slider having a groove on the side opposite to the connecting plate, and the guide rail being slidably mounted in the two grooves.

[0015] In some embodiments of the present invention, each of the drive units includes a fixed plate, a drive member, and a cylinder; wherein,

[0016] Each of the aforementioned fixing plates is fixedly installed on the base, and each of the aforementioned cylinders is fixedly installed on the side of the corresponding fixing plate opposite to the base;

[0017] Each of the driving components is slidably mounted on the corresponding fixed plate. Each driving component includes an abutting part and a connecting part. Each abutting part is capable of drivingly abutting against the corresponding end face, and each connecting part is drivingly connected to the corresponding cylinder.

[0018] In some embodiments of the present invention, a force-bearing part is provided on the outer side of the drive ring, and the first drive device includes a mounting plate, a drive motor and a gear, wherein the drive motor is fixedly mounted on the mounting plate and the gear is connected to the output shaft of the drive motor;

[0019] The mounting plate is movably mounted on the base, and the mounting plate can also move toward or away from the clamp assembly so that the gear can make or separate from the force-bearing part.

[0020] In some embodiments of the present invention, the battery fixture includes a locking mechanism mounted on the connecting plate, the locking mechanism having a locked state that locks the clamp unit and the connecting plate and an unlocked state that unlocks the clamp unit and the connecting plate.

[0021] In some embodiments of the present invention, the battery fixture includes a second driving device, which is tractively connected to the connecting plate to drive the clamp assembly to rotate relative to the base.

[0022] The present invention also proposes a battery welding device, which includes a welding machine and a battery fixture as described in any one of the above.

[0023] The present invention, through the above-described technical solution, mounts a first driving device on a base. Corresponding pipelines or lines connected to the first driving device can be located on the side of the first driving device away from the clamping assembly. The clamping assembly includes a connecting plate and a clamping unit. The clamping unit is movably connected to the connecting plate and has a clamping position and a releasing position relative to the battery. The connecting plate is rotatably mounted on the base. The first driving device is also detachably connected to the clamping unit to drive the clamping unit to switch between the clamping and releasing positions. With this configuration, when the clamping assembly rotates relative to the base to adjust the relative position of the battery, the first driving device can separate from the clamping unit. The first driving device does not follow the rotation of the clamping assembly, avoiding entanglement of the pipelines or lines of the first driving device with the clamping assembly. Furthermore, because the first driving device is not located on the clamping assembly, the resistance encountered by the clamping assembly during rotation is reduced. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0025] Figure 1 This is a three-dimensional structural diagram of an embodiment of the battery fixture of the present invention;

[0026] Figure 2 for Figure 1 Assembly diagram of the first drive unit and the base;

[0027] Figure 3 for Figure 1 Assembly diagram of the first drive unit and transmission components;

[0028] Figure 4 for Figure 1A three-dimensional structural diagram of the clamping assembly and transmission components;

[0029] Figure 5 for Figure 1 A three-dimensional structural diagram of the drive unit.

[0030] Explanation of icon numbers:

[0031] label name label name 100 Battery fixture 131 drive unit 110 base 132 Fixed plate 120 Fixture assembly 133 Drive components 121 Connecting plate 134 Butt part 122 Sliding part 135 Connection part 123 slider 136 cylinder 124 chute 140 Transmission components 125 Fixture unit 141 Drive unit 126 Drive ring 142 Contact Department 127 Force-bearing part 143 end face 128 Execution Module 144 guide 130 First driving device

[0032] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0034] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0035] Furthermore, in this invention, descriptions involving "first," "second," etc., are 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 with "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 invention.

[0036] This invention proposes a battery jig 100, applied to battery welding equipment, which is an important production piece of equipment in the manufacturing of new energy batteries. Please refer to the references. Figures 1 to 4 In an embodiment of the present invention, the battery fixture 100 includes a base 110, a clamp assembly 120, and a first drive device 130.

[0037] The clamp assembly 120 includes a connecting plate 121 and a clamp unit 125. The clamp unit 125 is movably connected to the connecting plate 121 and has a clamping position and a releasing position relative to the battery. The connecting plate 121 is rotatably mounted on the base 110.

[0038] It should be noted that the part of the fixture unit 125 that contacts the battery is made of non-metallic material to prevent short circuits and fires when in contact with the battery, thus ensuring the safety of the battery during the welding process.

[0039] In this embodiment, the base 110 includes a base plate and a frustum. The frustum is fixedly mounted on the base plate, with a through-hole in the center and a bearing on its inner side for the connecting plate 121 to rotate. Specifically, the connecting plate 121 can be connected to the bearing via a threaded connection and can be rotatably mounted on the base 110. It is understood that when the clamping unit 125 is in the released position, the battery fixture 100 is through-hole in the center to allow the battery to enter the clamping unit 125.

[0040] Understandably, the battery fixture 100 is used in battery welding equipment. After the battery fixture 100 fixes the battery, the welding machine welds one side of the battery. After one side of the battery is welded, the relative position of the battery can be adjusted by rotating the clamp assembly 120, and the welding machine can weld the other side of the battery. This process can be repeated to weld all sides of the battery.

[0041] In another embodiment, the clamp assembly 120 and the welding machine can rotate synchronously. That is, while the clamp assembly 120 clamps the battery and rotates to switch positions, the welding machine can adjust the position of the welding head in real time according to the change of the battery position. It can be understood that the welding head of the welding machine can weld all sides of the battery at one time, without having to adjust the battery position and then weld again after welding one side. This can ensure the welding effect.

[0042] The first drive device 130 is mounted on the base 110 and is also detachably driven to the clamping unit 125 to drive the clamping unit 125 to switch between a clamping position and a release position. In some embodiments, when the battery enters the clamping unit 125, the first drive device 130 drives the clamping unit 125 to the clamping position to fix the battery, and the welding machine can then perform welding work on the battery. At the same time, the first drive device 130 can be separated from the clamping unit 125, or after the welding machine finishes welding one side of the battery, the first drive device 130 separates from the clamping unit 125, the clamping assembly 120 rotates relative to the base 110 to adjust the relative position of the battery, and the welding machine then welds the other side of the battery. This process is repeated to weld all sides of the battery. When the battery is finished welding, the first drive device 130 is driven to the clamping unit 125 to drive the clamping unit 125 to the release position to release the battery.

[0043] The present invention, through the above technical solution, installs the first driving device 130 on the base 110. Corresponding pipelines or lines connected to the first driving device 130 can be arranged on the side of the first driving device 130 away from the clamp assembly 120. The clamp assembly 120 includes a connecting plate 121 and a clamp unit 125. The clamp unit 125 is movably connected to the connecting plate 121 and has a clamping position and a releasing position relative to the battery. The connecting plate 121 is rotatably installed on the base 110. The first driving device 130 is also detachably connected to the clamp unit 125 to drive the clamp unit 125 to switch between the clamping position and the releasing position. With this configuration, when the clamp assembly 120 rotates relative to the base 110 to adjust the relative position of the battery, the first drive device 130 can be separated from the clamp unit 125. The first drive device 130 does not follow the rotation of the clamp assembly 120, thus avoiding the entanglement of the pipes or lines of the first drive device 130 with the clamp assembly 120. At the same time, since the first drive device 130 is not located on the clamp assembly 120, the resistance encountered by the clamp assembly 120 during rotation is also reduced.

[0044] In some examples, such as Figures 1 to 4 As shown, the clamping unit 125 includes a drive ring 126 and an execution module 128. The drive ring 126 is rotatably mounted on the connecting plate 121. The first drive device 130 is also detachably connected to the outer side of the drive ring 126. The execution module 128 is movably disposed on the inner side of the drive ring 126. The inner side of the drive ring 126 is connected to the execution module 128 to drive the execution module 128 to switch between the clamping position and the release position.

[0045] With this configuration, the first drive device 130 can transmit power to the execution module 128 by driving the drive ring 126 to rotate, providing power for the execution module 128 to clamp or release the battery. The execution module 128 is movably disposed inside the drive ring 126, so the power provided by the drive ring 126 to the execution module 128 is evenly distributed to squeeze the battery, reducing the possibility of excessive local stress on the battery.

[0046] Specifically, in this embodiment, the execution module 128 includes four clamping plates, which are respectively arranged on the four sides of the battery. Of course, in other embodiments, the execution module 128 may include two or more clamping plates.

[0047] There are several ways to detachably connect the first driving device 130 to the outer side of the driving ring 126. One method is to indirectly transmit power through an intermediate component to achieve the detachable connection. For example, a rack can be installed on the connecting plate 121 to mesh with the outer side of the driving ring 126, allowing the first driving device 130 to drive against the rack. Alternatively, the first driving device 130 can be movably mounted on the base 110. When a drive connection between the first driving device 130 and the driving ring 126 is needed, the first driving device 130 moves towards the clamp assembly 120, meshing with the outer side of the driving ring 126 via gears. When a drive connection between the first driving device 130 and the driving ring 126 is not needed, the first driving device 130 moves away from the clamp assembly 120, separating from the driving ring 126.

[0048] In some examples, such as Figure 1 , Figure 3 and Figure 4 As shown, the outer side of the drive ring 126 is provided with a force-receiving part 127. The battery fixture 100 also includes a transmission component 140. The transmission component 140 is movably mounted on the connecting plate 121. The transmission component 140 includes a drive part 141 and a contact part 142. The drive part 141 is connected to the force-receiving part 127 in a transmission connection. The contact part 142 is detachably connected to the first drive device 130 in a transmission connection.

[0049] With this configuration, the contact portion 142 of the transmission component 140 is detachably connected to the first drive device 130, that is, power is indirectly transmitted through the transmission component 140. The configuration of the transmission component 140 not only increases the contact surface between the first drive device 130 and the transmission component 140, but also smoothly transmits the power of the first drive device 130 to the force-receiving portion 127 of the drive ring 126. In other words, adding the transmission component 140 can play a buffering role.

[0050] In some examples, such as Figures 1 to 3As shown, the transmission component 140 is provided with a guide rail 144 along its length direction. The guide rail 144 is slidably mounted on the connecting plate 121. The contact part 142 includes two end faces 143 located in the length direction of the transmission component 140. The first driving device 130 includes two driving units 131. The two driving units 131 are respectively located on both sides of the clamp assembly 120 and are respectively capable of driving contact with the end faces 143.

[0051] With this configuration, the two drive units 131 are respectively connected to the two ends of the transmission component 140. The two drive units 131 push the guide rail 144 of the transmission component 140 to slide on the connecting plate 121 through the end face 143. The movement of the transmission component 140 is more stable. In addition, the two drive units 131 are also easier to disengage from the two end faces 143, avoiding interference with the rotation of the transmission component 140 and the clamp assembly 120.

[0052] Specifically, in this embodiment, both end faces 143 of the transmission component 140 are enlarged, which increases the contact area between the two drive units 131 and the contact portion 142, thereby improving the reliability of the transmission between the two drive units 131. The guide rail 144 can be slidably mounted on the connecting plate 121 in several ways. For example, a groove 124 can be provided on the connecting plate 121 to slidably connect with the guide rail 144, or a protrusion can be provided on the connecting plate 121 to form the groove 124. Alternatively, an intermediate body can be provided on the connecting plate 121, and the intermediate body can be slidably connected to the guide rail 144 by providing a groove 124 on the intermediate body.

[0053] In some examples, such as Figure 5 As shown, the connecting plate 121 is provided with a sliding part 122, which includes two spaced sliders 123. Each slider 123 has a groove 124 on the side opposite to the connecting plate 121, and the guide rail 144 is slidably mounted in the two grooves 124. This arrangement ensures the strength of the connecting plate 121 and avoids excessive local weight increase in the connecting plate 121, which would affect the rotation of the clamp assembly 120.

[0054] In some examples, such as Figure 1 and Figure 5 As shown, each drive unit 131 includes a fixed plate 132, a drive component 133, and a cylinder 136. Each fixed plate 132 is fixedly mounted on the base 110, and each cylinder 136 is fixedly mounted on the side of the corresponding fixed plate 132 away from the base 110. Each drive component 133 is slidably mounted on the corresponding fixed plate 132. Each drive component 133 includes an abutting part 134 and a connecting part 135. Each abutting part 134 is capable of drivingly abutting against the corresponding end face 143, and each connecting part 135 is drivingly connected to the corresponding cylinder 136.

[0055] With this configuration, through the cooperation of cylinder 136 and drive component 133, each abutting part 134 can be driven to abut against the corresponding end face 143, thereby driving the transmission component 140 to slide on the connecting plate 121, thereby driving the drive ring 126 to drive the execution module 128 to switch between the clamping position and the release position. The driving method of cylinder 136 is simple, reliable and stable.

[0056] In some examples, the outer side of the drive ring 126 is provided with a force-receiving part 127. The first drive device 130 includes a mounting plate, a drive motor and a gear. The drive motor is fixedly mounted on the mounting plate, and the gear is connected to the output shaft of the drive motor. The mounting plate is movably mounted on the base 110. The mounting plate can also move toward or away from the clamp assembly 120 so that the gear and the force-receiving part 127 can be in transmission contact or separated.

[0057] Compared to the above-mentioned scheme using cylinder 136, this scheme only requires one drive motor. The reverse rotation of the drive motor can drive the reverse rotation of the drive ring 126, which allows the clamping unit 125 to quickly switch between the clamping position and the release position.

[0058] In some examples, the battery fixture 100 includes a locking mechanism mounted on the connecting plate 121. The locking mechanism has a locked state that locks the clamping unit 125 and the connecting plate 121, and an unlocked state that unlocks the clamping unit 125 and the connecting plate 121. This configuration allows for self-locking of the clamping unit 125 when it is in the clamped position, maintaining the relative position of the battery within the clamping unit 125 and preventing the battery from loosening or even detaching during the welding process.

[0059] In some examples, the battery fixture 100 includes a second drive unit that is drively connected to the connecting plate 121 to drive the clamp assembly 120 to rotate relative to the base 110. This arrangement is intended to increase the level of automation when the battery fixture 100 is applied to battery welding equipment, thereby further improving the efficiency of automated production.

[0060] In some examples, the second drive device includes, but is not limited to, a servo motor, which is configured to further control the rotation angle of the clamp assembly 120 relative to the battery, thereby improving the welding accuracy of the battery welding setup and improving the quality of battery production.

[0061] The present invention also proposes a battery welding device, which includes a welding machine and a battery fixture 100. The specific structure of the battery fixture 100 is as described in the above embodiments. Since the battery welding device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0062] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A battery fixture, used in battery welding equipment, characterized in that, The battery fixture includes a base, a clamping assembly, and a first driving device; wherein... The clamping assembly includes a connecting plate and a clamping unit. The clamping unit is movably connected to the connecting plate and has a clamping position and a releasing position relative to the battery. The connecting plate is rotatably mounted on the base. The first driving device is mounted on the base, and the first driving device is also detachably connected to the clamping unit to drive the clamping unit to switch between the clamping position and the releasing position; The battery fixture includes a locking mechanism mounted on the connecting plate. The locking mechanism has a locked state that locks the clamp unit and the connecting plate together, and an unlocked state that unlocks the clamp unit and the connecting plate together. The clamping unit includes a drive ring and an execution module; wherein, the drive ring is rotatably mounted on the connecting plate, and the first drive device is detachably connected to the outer side of the drive ring; the execution module is movably disposed on the inner side of the drive ring, and the inner side of the drive ring is connected to the execution module to drive the execution module to switch between the clamping position and the release position. The outer side of the drive ring is provided with a force-receiving part, and the battery fixture also includes a transmission component. The transmission component is movably mounted on the connecting plate. The transmission component includes a drive part and a contact part. The drive part is drivenly connected to the force-receiving part, and the contact part is detachably drivenly connected to the first drive device.

2. The battery fixture as described in claim 1, characterized in that, The transmission component is provided with a guide rail along its length direction, the guide rail is slidably mounted on the connecting plate, and the contact portion includes two end faces provided in the length direction of the transmission component; The first driving device includes two driving units, which are respectively disposed on both sides of the clamp assembly and respectively capable of pulsatingly abutting against the two end faces.

3. The battery fixture as described in claim 2, characterized in that, The connecting plate is provided with a sliding part, which includes two spaced sliders. Each slider has a groove on the side away from the connecting plate, and the guide rail is slidably installed in the two grooves.

4. The battery fixture as described in claim 2, characterized in that, Each of the aforementioned drive units includes a fixed plate, a drive component, and a cylinder; wherein, Each of the aforementioned fixing plates is fixedly installed on the base, and each of the aforementioned cylinders is fixedly installed on the side of the corresponding fixing plate opposite to the base; Each of the driving components is slidably mounted on the corresponding fixed plate. Each driving component includes an abutting part and a connecting part. Each abutting part is capable of drivingly abutting against the corresponding end face, and each connecting part is drivingly connected to the corresponding cylinder.

5. The battery fixture as described in claim 1, characterized in that, The outer side of the drive ring is provided with a force-bearing part. The first drive device includes a mounting plate, a drive motor and a gear. The drive motor is fixedly mounted on the mounting plate, and the gear is connected to the output shaft of the drive motor. The mounting plate is movably mounted on the base, and the mounting plate can also move toward or away from the clamp assembly so that the gear can make or separate from the force-bearing part.

6. The battery fixture as described in claim 1, characterized in that, The battery fixture includes a second drive device, which is tractively connected to the connecting plate to drive the clamp assembly to rotate relative to the base.

7. A battery welding device, characterized in that, The battery welding equipment includes a welding machine and a battery fixture as described in any one of claims 1 to 6.

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