Sealing ring fastening mechanism detection device for explosion-proof combined cap of cylindrical lithium battery

Abstract

The utility model discloses a sealing ring fastening mechanism detection device for an explosion-proof combined cap of a cylindrical lithium battery, which comprises a rotatable turntable, and a bearing piece and a pushing piece which are arranged at the upper end or the lower end of the turntable and correspond to each other, the output end of the pushing piece corresponds to an accommodating opening for accommodating a workpiece on the turntable, and an output shaft of the pushing piece is connected with a reflecting plate. The reflector is additionally arranged on the output shaft of the pushing piece, and the laser displacement detector is arranged below the reflector, so that when the output shaft of the pushing piece drives the reflector to translate, the laser displacement detector can judge whether the sealing ring buckled by the cap metal piece is in place or not through laser measurement of the moving distance of an upward top, and an unqualified judgment signal can be sent if the sealing ring is not in place; the problem that the cap metal piece cannot be detected and identified when the cap metal piece cannot press the sealing ring in place is solved, defective products with the cap metal piece not pressing the sealing ring in place are screened out, the detection capacity of equipment is effectively improved, the defective products are prevented from flowing out, the manual detection mode is omitted, and the safety performance of the products is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of cap processing technology, and in particular to a detection device for a sealing ring fastening mechanism for a cylindrical lithium battery explosion-proof combination cap. Background Technology

[0002] Lithium batteries can be broadly classified into two categories: lithium metal batteries and lithium-ion batteries. Lithium-ion batteries do not contain metallic lithium and are rechargeable. The fifth generation of rechargeable batteries, lithium metal batteries, was developed in 1996. Their safety, specific capacity, self-discharge rate, and performance-price ratio are all superior to lithium-ion batteries. Lithium batteries are generally cylindrical in shape, and a cap is needed to seal and conduct electricity within the cylindrical battery.

[0003] The assembly machines in the current cylindrical lithium battery explosion-proof combination cap (hereinafter referred to as cap) industry all use the method of directly pressing the sealing ring onto the metal parts. Some cap metal parts may not be properly assembled, resulting in a low yield of cap metal parts. Utility Model Content

[0004] In view of this, the present invention addresses the deficiencies of the existing technology and its main purpose is to provide a detection device for the sealing ring fastening mechanism of a cylindrical lithium battery explosion-proof combination cap. This device solves the problem that the assembly machines in the cylindrical lithium battery explosion-proof combination cap (hereinafter referred to as cap) industry all use the method of directly pressing the sealing ring onto the metal parts, which sometimes results in improper assembly of the cap metal parts, leading to a low yield of cap metal parts.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a detection device for a sealing ring fastening mechanism for a cylindrical lithium battery explosion-proof combination cap, comprising a rotatable turntable and corresponding receiving and pushing components located at the upper or lower end of the turntable. The output end of the pushing component corresponds to the receiving opening on the turntable for accommodating the workpiece. A reflector is connected to the output shaft of the pushing component, and a laser displacement detector is provided next to the pushing component, with the output end of the laser displacement detector corresponding to the reflector. As the output shaft of the pushing component is inserted into the receiving opening, the workpiece in the receiving opening comes into contact with the receiving component, and the distance between the reflector and the laser displacement detector increases, thereby determining the degree of contact between the workpiece and the receiving component.

[0006] Furthermore, the receiving port is divided into a first part that adapts to the size of the workpiece and a second part that adapts to the output shaft of the pusher, with the second part being smaller than the first part.

[0007] Furthermore, one end of the receiving component is horizontally positioned corresponding to the receiving port, so that the workpiece is pushed by the pusher and comes into contact with the receiving component, causing the sealing ring to engage with the workpiece.

[0008] Furthermore, the lower end of the receiving component is provided with an opening corresponding to the receiving port, and an elastic abutment is provided inside the opening.

[0009] Furthermore, the elastic abutment includes an elastic element disposed within the opening and an abutment rod disposed at one end of the elastic element, the abutment rod corresponding to the receiving opening.

[0010] Furthermore, the end of the abutment rod is parallel to the inlet end of the receiving port.

[0011] Furthermore, the opening sidewall is provided with at least one guide groove, and a guide rod that slides in the guide groove is installed next to the abutment rod.

[0012] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution, by adding a reflector to the output shaft of the pusher and setting a laser displacement detector below the reflector, when the output shaft of the pusher moves the reflector horizontally, the laser displacement detector can determine whether the cap metal part is properly clamped and sealed by measuring the upward movement distance with a laser. If it is not properly clamped, a non-conforming judgment signal can be issued. This not only prevents the problem of the cap metal part not being properly clamped and sealed from being undetectable, but also filters out defective products with improperly clamped and sealed caps, effectively increasing the equipment's inspection capability, preventing defective products from flowing out, reducing the need for manual inspection, and enhancing the safety performance of the product.

[0013] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0014] Figure 1 This is a plan view of Embodiment 1 of this utility model.

[0015] Figure 2 This is a structural diagram illustrating Embodiment 2 of this utility model.

[0016] Figure 3 This is a plan view of Embodiment 2 of this utility model.

[0017] Explanation of reference numerals in the attached diagram:

[0018] 1. Sealing ring; 2. Worktable;

[0019] 10 Turntable, 11 Reception Port, 111 First Section, 112 Second Section;

[0020] 20 Receiving part, 21 Opening, 22 Elastic abutment, 221 Elastic part, 222 Abutment rod, 223 Guide groove, 224 Guide rod;

[0021] 30 Pusher, 31 Reflector, 32 Laser displacement detector. Detailed Implementation

[0022] Please refer to Figure 1-3As shown, it illustrates the specific structure of a preferred first embodiment of the present invention, which is a detection device for a sealing ring fastening mechanism for a cylindrical lithium battery explosion-proof combination cap. It includes a rotatable turntable 10 and a receiving member 20 and a pushing member 30 located at the upper or lower end of the turntable 10, respectively. The output end of the pushing member 30 corresponds to the receiving opening 11 on the turntable 10 for accommodating the workpiece. A reflector 31 is connected to the output shaft of the pushing member 30, and a laser displacement detector 32 is located beside the pushing member 30. The output end of the laser displacement detector 32 corresponds to the reflector 31. As the output shaft of the pushing member 30 is inserted into the receiving opening 11, the workpiece in the receiving opening 11 comes into contact with the receiving member 20, and the distance between the reflector 31 and the laser displacement detector 32 increases, thereby determining the degree of contact between the workpiece and the receiving member 20. Compared to existing sealing ring fastening mechanisms that use metal parts to directly press the sealing ring onto the top, which lack a detection device and thus cannot identify assembly defects, this sealing ring fastening mechanism adds a reflector 31 to the output shaft of the pusher 30 and a laser displacement detector 32 below the reflector 31. When the output shaft of the pusher 30 moves the reflector 31, the laser displacement detector 32 can determine whether the cap metal part is properly pressing the sealing ring 1 by measuring the upward movement distance with a laser. If it is not properly pressed, a non-conforming judgment signal is issued. This not only prevents the problem of the cap metal part pressing the sealing ring 1 not being able to be inspected and identified, but also filters out defective products with the cap metal part pressing the sealing ring 1 not properly pressed. This effectively increases the equipment's inspection capability, avoids the outflow of defective products, reduces the need for manual inspection, and enhances the product's safety performance.

[0023] Specifically, the turntable 10, the receiving component 20, the pushing component 30, and the laser displacement detector 32 are all mounted on the worktable 2. The turntable 10 is connected to the output shaft of the driving component on the worktable 2, so that the turntable 10 can rotate around the axis of the driving component. As the turntable 10 rotates, the workpiece and the sealing ring 1 can be placed in the receiving port 11 in sequence until it moves above the pushing component 30. At this time, as the output shaft of the pushing component 30 moves horizontally, it is inserted into the receiving port 11, so that the workpiece in the receiving port 11 drives the sealing ring 1 to contact the receiving component 20. The sealing ring 1 is fastened to the workpiece by the compression with the end wall of the receiving component 20. During this process, the distance between the laser displacement detector 32 and the reflector 31 on the output shaft of the pushing component 30 is detected to determine whether the workpiece is properly pressing the sealing ring 1.

[0024] like Figure 1As shown, for example, the receiving opening 11 is divided into a first part 111 adapted to the size of the workpiece and a second part 112 adapted to the output shaft of the pusher 30. The second part 112 is smaller than the first part 111. Since the pusher 30 needs to be inserted into the receiving opening 11 to push the workpiece toward the receiving member 20, in order to prevent the workpiece from falling into the receiving opening 11, the receiving opening 11 is divided into a first part 111 adapted to the size of the workpiece and a second part 112 adapted to the output shaft of the pusher 30. This allows the pusher 30's output shaft to be inserted into the first part 111 through the second part 112 to push the workpiece, while the first part 111 can support the workpiece.

[0025] like Figure 1 As shown, for example, one end of the receiving member 20 corresponding to the receiving port 11 is horizontally positioned, so that the workpiece, pushed by the pushing member 30, comes into contact with the receiving member 20, causing the sealing ring 1 to engage with the workpiece. When the output shaft of the pushing member 30 is inserted into the first part 111 from the second part 112 and pushes the workpiece toward the receiving member 20, since the sealing ring 1 is also placed in the first part 111 and located at the top of the workpiece, after the sealing ring 1 comes into contact with the receiving member 20 under the pushing of the workpiece, the sealing ring 1 can be fastened to the workpiece under the squeezing force of the pushing member 30. At this time, the horizontality of the contact end face between the receiving member 20 and the sealing ring 1 determines the effect of the sealing ring 1 fastening to the workpiece, and the horizontal positioning of the end of the receiving member 20 that abuts the sealing ring 1 ensures the tightness of the sealing ring 1 fastening to the workpiece.

[0026] In one embodiment, such as Figure 2 As shown, for example, the lower end of the receiving member 20 is provided with an opening 21 corresponding to the receiving port 11, and an elastic abutment 22 is provided in the opening 21. The opening 21 accommodates the elastic abutment 22 and provides a certain displacement space for the elastic abutment 22, so that when the workpiece moves towards the receiving member 20 under the push of the output shaft of the pusher 30, it can abut against the elastic abutment 22 and move into the opening 21. During this process, the workpiece and the sealing ring 1 on it slowly engage.

[0027] In one embodiment, the elastic abutment 22 includes an elastic element 221 disposed within the opening 21 and an abutment rod 222 disposed at one end of the elastic element 221, the abutment rod 222 corresponding to the receiving opening 11. One end of the abutment rod 222 corresponds to the sealing ring 1, and the other end fixes the elastic element 221. The elastic element 221 can be a spring. When the abutment rod 222 contacts the sealing ring 1, the workpiece drives the sealing ring 1 under the push of the pusher 30, pushing the abutment rod 222 to compress the elastic element 221, causing the elastic element 221 to move into the opening 21. As the degree of push of the pusher 30 increases, the compression of the sealing ring 1 by the abutment rod 222 increases, causing the sealing ring 1 to slowly fasten with the workpiece. When the pusher 30 retracts, the abutment rod 222 impacts the sealing ring 1 under the elastic restoring force of the elastic element 221, making the sealing ring 1 fasten the workpiece more tightly.

[0028] In one embodiment, the end of the abutment rod 222 is parallel to the inlet end of the receiving port 11. Because the abutment rod 222 and the inlet end of the receiving port 11 are parallel, when the pusher 30 pushes the workpiece toward the abutment rod 222 without affecting the rotation of the turntable 10, the sealing ring 1 on the workpiece can push the abutment rod 222 toward the opening 21 more quickly. This reduces the impact of opening the opening 21 and adding the elastic abutment 221 inside the opening 21 on the sealing ring 1 fastening the workpiece.

[0029] In one embodiment, the sidewall of the opening 21 is provided with at least one guide groove 223, and a guide rod 224 that slides within the guide groove 223 is installed beside the abutment rod 222. To prevent the abutment rod 222 from moving excessively under the elastic reset of the elastic member 221, the guide groove 223 is provided on the sidewall of the opening 21, and the guide rod 224 that slides within the guide groove 223 is fixed to the abutment rod 222 to limit the movement position of the abutment rod 222 and increase the stability when the sealing ring 1 and the workpiece are fastened.

[0030] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A detection device for sealing ring clamping mechanism of cylindrical lithium battery explosion-proof combined cap, comprising a rotatable turntable (10) and a corresponding receiving member (20) and a pushing member (30) arranged at the upper end or the lower end of the turntable (10), the output end of the pushing member (30) corresponding to the receiving port (11) of the turntable (10) accommodating the workpiece, characterized in that: The output shaft of the pusher (30) is connected with a reflecting plate (31), a laser displacement detector (32) is arranged beside the pusher (30), and the output end of the laser displacement detector (32) corresponds to the reflecting plate (31); when the output shaft of the pusher (30) is inserted into the accommodating port (11), the workpiece in the accommodating port (11) is in contact with the receiving member (20), and the distance between the reflecting plate (31) and the laser displacement detector (32) is increased, so as to judge the contact degree of the workpiece and the receiving member (20). ​ 2. The detection device for the sealing ring clamping mechanism of the explosion-proof combined cap for cylindrical lithium batteries according to claim 1, characterized in that: The accommodating port (11) is divided into a first part (111) suitable for the size of the workpiece and a second part (112) suitable for the output shaft of the pusher (30), and the second part (112) is smaller than the first part (111).

3. The detection device for the sealing ring clamping mechanism of the explosion-proof combined cap for cylindrical lithium batteries according to claim 1, characterized in that: The receiving member (20) is arranged horizontally at one end of the accommodating port (11), so that the workpiece is in contact with the receiving member (20) when the workpiece is pushed by the pusher (30), and the sealing ring (1) is clamped on the workpiece.

4. The detection device for the sealing ring clamping mechanism of the explosion-proof combined cap for cylindrical lithium batteries according to claim 1, characterized in that: The lower end of the receiving member (20) is provided with an opening (21) corresponding to the accommodating port (11), and the opening (21) is provided with an elastic contact member (22).

5. The detection device for the sealing ring clamping mechanism of the explosion-proof combined cap for cylindrical lithium batteries according to claim 4, characterized in that: The elastic contact member (22) comprises an elastic member (221) arranged in the opening (21) and a contact rod (222) arranged at one end of the elastic member (221), and the contact rod (222) corresponds to the accommodating port (11).

6. A sealing ring clamping mechanism detection device for an explosion-proof combined cap of a cylindrical lithium battery according to claim 5, characterized in that: The end of the contact rod (222) is parallel to the inlet end of the accommodating port (11).

7. The detection device for the sealing ring clamping mechanism of the explosion-proof combined cap for cylindrical lithium batteries according to claim 6, characterized in that: The sidewall of the opening (21) is provided with at least one guide groove (223), and the side of the contact rod (222) is provided with a guide rod (224) sliding in the guide groove (223).

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