High-precision battery positioning gripper

Abstract

The utility model discloses a high-precision battery positioning gripper which comprises a cylindrical supporting main body, the upper portion of the cylindrical supporting main body is provided with four grippers, the four grippers are evenly arranged at intervals in the circumferential direction and form a holding part, a gap is reserved between every two adjacent grippers, the grippers gradually incline outwards from bottom to top, and the grippers are arranged on the cylindrical supporting main body. A supporting insert is further arranged on the inner side of the holding part, a supporting platform is arranged at the top of the supporting insert, the outer diameter of the supporting platform is matched with the diameter of the battery, and the supporting platform is used for supporting the head of the battery, so that high-precision positioning and holding stability of the battery are achieved; according to the sealing device, the battery is effectively supported, instant axial force in the sealing process can be buffered, crushing damage and deformation to the positive electrode head of the battery in the sealing process are reduced, the appearance quality of the battery is ensured to be qualified, and the positioning precision of the battery in the sealing process is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of clamp, concretely to a high-precision battery positioning gripper. BACKGROUND

[0002] Alkaline manganese battery is also called alkaline zinc manganese battery, alkaline dry battery and alkaline manganese battery, and is the best variety in zinc manganese battery series, which has the advantages of more stable voltage, high battery capacity, large discharge current, wide application range, good low temperature performance, long storage life, corrosion resistance of shell, environmental protection and green compared with previous ordinary dry batteries (carbon zinc dry batteries).

[0003] The quality of alkaline manganese battery is judged from battery performance and product appearance, and the product quality in actual production is biased to the process parameter control of battery performance, that is, the key process, and the quality of appearance is easily ignored. In the battery sealing process, the whole battery is fixed on the work station disc, the upper end steel shell and the sealing body part of the battery bear the radial and axial force of the crimping wheel, and the battery sealing is realized through the winding and straightening of the current collector and the steel shell mouth.

[0004] In the prior art, the battery is not supported inside the gripper, and since the gripper is inclined, the positive end of the battery embedded in the gripper of the work station disc is pressed by the radial force of the crimping wheel in the axial direction, and the positive end of the battery is often pressed, indented, and the positive steel shell is scratched, which seriously affects the quality of the battery.

[0005] In order to avoid quality risk and improve the qualified rate of the battery, we need to design a new insert device to achieve this quality target. CONTENT OF THE UTILITY MODEL

[0006] In order to solve the above technical problems, the utility model relates to a high-precision battery positioning gripper, which is simple and reliable, effectively solves the above technical problems, and is suitable for popularization and use. In order to achieve the above purpose, the utility model realizes the following technical scheme:

[0007] A high-precision battery positioning gripper, comprising a cylindrical support main body, a gripper is arranged on the upper part of the cylindrical support main body, four grippers are evenly arranged around the circumferential direction and form a holding part, a gap is left between adjacent grippers, the gripper gradually inclines outward from bottom to top, a support insert is further arranged on the inner side of the holding part, the top of the support insert is a support platform, and the outer diameter of the support platform is matched with the diameter of the battery and used for supporting the head of the battery.

[0008] On the basis of the above scheme and as a preferred scheme of the above scheme: the lower part of each said gripper is provided with a support part, which is fixedly connected with the cylindrical support body, the cross section of the support part is fan-shaped, a waist-shaped through hole is formed between the adjacent two support parts, and the waist-shaped through hole penetrates in the radial direction.

[0009] On the basis of the above scheme and as a preferred scheme of the above scheme: the middle part of the support insert is provided with a radially inwardly recessed limiting groove, the lower part of the gripper is provided with a limiting protrusion matched with the limiting groove, and the support insert is fixedly arranged in the inside of the holding part through the clamping of the limiting groove and the limiting protrusion.

[0010] On the basis of the above scheme and as a preferred scheme of the above scheme: the bottom platform of the support insert is provided with an inclined guide surface on the outside, and the guide surface gradually inclines to the inside from top to bottom.

[0011] On the basis of the above scheme and as a preferred scheme of the above scheme: the support insert is made of stainless steel.

[0012] Compared with the prior art, the utility model has the advantages of high-precision positioning of the battery and stability of holding, through the matching of the support platform on the top of the support insert and the head of the battery, the battery is effectively supported, the instantaneous axial force in the sealing process can be buffered, the positive electrode head of the battery is prevented from being pressed and deformed in the sealing process, the appearance quality of the battery is ensured to be qualified, and the positioning accuracy of the battery in the sealing process is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the gripper.

[0014] Figure 2 It is a schematic diagram of the state of holding and clamping the battery by the gripper.

[0015] Figure 3 It is a schematic diagram of the structure of the prior art gripper. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme in the embodiments will be described clearly and completely in combination with the drawings in the embodiments, however, the following specific embodiments and examples are only for the purpose of illustration, and are not a limitation on the utility model.

[0017] In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the drawings, and is for the purpose of description and is not a limitation on the utility model. Figure 1The direction or positional relationship shown is only for the convenience of describing the utility model, and is not indicative or suggestive of the device or element indicated having a specific orientation, being constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model.

[0018] In the description of the present application, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of the indicated technical features.

[0019] As Figure 3 The prior art shows a gripper structure schematic diagram, the inside of the gripper does not support the battery, since the gripper is inclined, the sealing wheel exerts force on the positive terminal embedded in the gripper of the work station disc in the axial direction, and the battery positive terminal often appears to be crushed, indentation, positive steel shell scratch and other adverse phenomena, which seriously affects the quality of the battery, in order to solve the above technical problems, as Figures 1-2 The utility model discloses a high-precision battery positioning gripper, which comprises a cylindrical support main body 1, a gripper 2 is arranged on the upper part of the cylindrical support main body 1, four grippers 2 are evenly arranged around the circumferential direction and form a holding part, a gap is left between adjacent grippers 2, the gripper 2 is gradually inclined outward from bottom to top, the high-precision positioning of the battery is realized, and the design that the gripper 2 is gradually inclined outward from bottom to top increases the stability of holding and ensures the positioning accuracy of the battery in the sealing process.

[0020] The inside of the holding part is also provided with a support insert 3, the top of the support insert 3 is a support platform, the outer diameter of the support platform is matched with the diameter of the battery and is used for supporting the head of the battery, the inside of the cylindrical support main body is connected with the lower screw rod of the sealing machine through threads, the upper platform of the insert and the positive cap structure of the battery steel shell are matched, the process size and the appearance quality of the battery in the production process are guaranteed, the running stability of the assembly is enhanced, the probability of positive head crushing and deformation is reduced, and it is worth mentioning that the outer diameter of the insert and the inner diameter of the cylinder where the gripper 2 is located keep a proper gap, so that the battery shell is prevented from being scratched due to the instantaneous contraction of the gripper 2 caused by external force, the appearance quality of the positive pole of the battery is guaranteed, and the outer diameter of the large ring at the upper end of the insert keeps tension in the inner cavity when the gripper 2 contracts, so that the battery positive shell is prevented from being damaged due to excessive contraction of the gripper 2.

[0021] Further, the lower part of each gripper 2 is provided with a support part 4, the support part 4 is fixedly connected with the cylindrical support main body 1, the cross section of the support part 4 is fan-shaped, a waist-shaped through hole is formed between the two adjacent support parts 4, and the waist-shaped through hole penetrates in the radial direction; the fan-shaped support part 4 at the lower part of each gripper 2 is fixedly connected with the cylindrical support main body 1, and the structural stability of the gripper 2 is enhanced. The waist-shaped through hole formed between the two adjacent support parts 4 helps to reduce the weight and improve the use efficiency of the material.

[0022] Further, the middle part of the support insert 3 is provided with a radially inwardly recessed limiting groove 5, and the lower part of the gripper 2 is provided with a limiting protrusion 6 matched with the limiting groove 5, the support insert 3 is fixed in the inner side of the holding part through the clamping of the limiting groove 5 and the limiting protrusion 6, and is fixed in a clamping manner, so that the assembly process is simplified, the stability of the support insert 3 in the inner side of the holding part is ensured, displacement during operation is prevented, and preferably, clearance fit is adopted to avoid being stuck after four-jaw clamping.

[0023] Further, the bottom platform of the support insert 3 is provided with an inclined guide surface 7 on the outer side, which is gradually inclined inward from top to bottom, and the inclined guide surface 7 is designed to make the battery more smooth during the guiding-in and guiding-out process, reduce the risk of damage to the battery, and improve the convenience of operation.

[0024] Further, the support insert 3 is made of stainless steel material, has high hardness and corrosion resistance, which not only improves the durability of the gripper 2, but also reduces the maintenance cost and prolongs the service life.

[0025] The above embodiments are only preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: equivalent changes made by those skilled in the art according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A high precision battery positioning gripper, characterized in that: The application relates to a battery holding device, which comprises a cylindrical supporting body, the upper part of the cylindrical supporting body is provided with four clamping claws, the four clamping claws are uniformly arranged along the circumferential direction and form a holding part, gaps are left between the adjacent clamping claws, the clamping claws are gradually inclined outward from bottom to top, the inner side of the holding part is further provided with a supporting insert, the top of the supporting insert is a supporting platform, the outer diameter of the supporting platform is matched with the diameter of a battery and is used for supporting the head of the battery.

2. The high-precision battery positioning gripper of claim 1, wherein: The lower part of each clamping claw is provided with a supporting part which is fixedly connected with the cylindrical supporting body, the cross section of the supporting part is in the shape of a sector, waist-shaped through holes are formed between the two adjacent supporting parts, and the waist-shaped through holes penetrate along the radial direction.

3. The high-precision battery positioning gripper of claim 2, wherein: The middle part of the supporting insert is provided with a limiting groove which is concave along the radial direction, the lower part of the clamping claw is provided with a limiting protrusion which is matched with the limiting groove, and the supporting insert is fixed in the inner side of the holding part through the clamping of the limiting groove and the limiting protrusion.

4. The high-precision battery positioning gripper of claim 3, wherein: The outer side of the bottom platform of the supporting insert is provided with an inclined guide surface which is gradually inclined inward from top to bottom.

5. The high-precision battery positioning gripper of claim 4, wherein: The supporting insert is made of stainless steel.

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