Mounting device for upper cover of lithium battery box body

Abstract

The utility model relates to the technical field of battery assembly, and particularly discloses a lithium battery box body upper cover mounting device which comprises a rack, wherein a three-shaft screw machine, an air tightness detector and a single-shaft screw machine are sequentially arranged on the rack; the carrier plate is used for placing the lithium battery box body and sequentially moving along the three-axis screw machine, the air tightness detector and the single-axis screw machine, and a clamping seat matched with the periphery of the lithium battery box body is arranged on the carrier plate; the fastening mechanisms are arranged on the two sides of the three-axis screw machine, the air tightness detector and the single-axis screw machine respectively and clamp the lithium battery box on the carrier plate, and each fastening mechanism comprises supporting seats which are symmetrically arranged, air cylinders which are arranged on the supporting seats respectively and clamping arms which are driven by the air cylinders respectively and move close to each other or in the opposite directions; the problems that in the traditional installation process of the upper cover of the lithium battery box, the labor intensity of workers is large, and the automation degree and the production efficiency are low are solved.

Description

Technical Field

[0001] The present application relates to the technical field of battery assembly, and specifically discloses a lithium battery box upper cover installation device. Background Art

[0002] Lithium batteries are widely used in the field of new energy pure electric vehicles and hybrid new energy vehicles due to their high energy density, low pollution, no memory effect, and fast charging. Lithium batteries are usually equipped with an upper cover that matches the battery housing to protect the lithium battery. The upper cover and the battery are connected and fixed by bolts, and the positive and negative terminals for connecting electrical components are arranged on the upper cover.

[0003] At present, the assembly and production of lithium batteries are usually processed manually. For example, the upper cover of the lithium battery case is manually fixed to the battery shell by bolts. This installation method not only has high labor intensity, but also has a low degree of automation, resulting in low production efficiency. Of course, some production workshops use multi-axis screw machines to install and fix the bolts between the upper cover of the lithium battery case and the battery shell. Although a certain degree of automated production has been achieved and production efficiency has been improved, the upper cover of the lithium battery case is prone to excessive position deviation, which leads to inaccurate bolt installation and difficulty in tightening the bolts, thereby affecting the airtightness between the upper cover of the lithium battery case and the battery shell. Therefore, in view of this, the inventor provides a lithium battery case upper cover installation device to solve the above problems. Utility Model Content

[0004] The utility model aims to solve the problems of high manual labor intensity, low automation degree and low production efficiency in the traditional lithium battery box cover installation process.

[0005] In order to achieve the above-mentioned purpose, the basic scheme of the utility model provides a lithium battery box upper cover installation device, comprising:

[0006] Frame: The frame is equipped with a three-axis screw machine, an air tightness detector and a single-axis screw machine in sequence;

[0007] Carrier plate: used for placing the lithium battery box and moving along the three-axis screw machine, air tightness tester and single-axis screw machine in sequence, and a clamping seat adapted to the four sides of the lithium battery box is provided on the carrier plate;

[0008] At least three sets of fastening mechanisms are respectively arranged on both sides of the three-axis screw machine, the air tightness tester and the single-axis screw machine and clamp the lithium battery box on the carrier plate. The fastening mechanisms include symmetrically arranged support seats, cylinders respectively arranged on the support seats and clamping arms respectively driven by the cylinders and moving close to or towards each other.

[0009] Furthermore, the frame is provided with a plurality of gantries for installing the three-axis screw machine, the air tightness detector and the single-axis screw machine respectively.

[0010] Furthermore, the frame is also provided with a lifting mechanism which is respectively located under each gantries and can lift the carrier plate.

[0011] Furthermore, a processing groove is provided on the frame along the direction of the three-axis screw machine, the air tightness detector and the single-axis screw machine, the carrier plate is located in the processing groove, and the support seats are respectively arranged on both sides of the processing groove.

[0012] Furthermore, the support seat includes a column and a horizontal plate arranged on the top of the column, a mounting plate driven by the cylinder is slidably connected to the horizontal plate, and the clamping arms are all arranged on the mounting plate.

[0013] Furthermore, the transverse plate is provided with a plurality of guide rails for accommodating the sliding of the mounting plate.

[0014] Furthermore, an arc groove adapted to the end of the lithium battery box is provided on one side of the clamp arm close to the lithium battery box, and a wedge block capable of engaging with the upper cover of the lithium battery box is provided on the inner wall of the arc groove.

[0015] The principle and effect of this scheme are:

[0016] Compared with the prior art, the utility model can perform a primary positioning and clamping through the clamp seat during the movement of the lithium battery box, and a secondary positioning and clamping through the fastening mechanism during the installation of the lithium battery box upper cover, and adopts a three-axis screw machine, an airtightness tester and a single-axis screw machine, so that the airtightness between the battery box upper cover and the battery shell can be tested during the installation of the upper cover to determine whether the bolts and the upper cover are installed accurately, which liberates human resources and reduces the labor intensity of the staff. It not only improves the installation efficiency of the lithium battery box upper cover, but also improves the accuracy and automation of the installation of the lithium battery upper cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A schematic diagram of a lithium battery box upper cover installation device proposed in an embodiment of the present application is shown;

[0019] Figure 2 A schematic diagram of a fastening mechanism in a lithium battery box upper cover installation device proposed in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0020] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0021] The figure marks in the drawings of the specification include: frame 1, three-axis screw machine 2, air tightness tester 3, single-axis screw machine 4, gantry 5, carrier plate 6, fastening mechanism 7, column 8, cross plate 9, main rail 10, auxiliary rail 11, mounting plate 12, clamping arm 13, wedge block 14, lithium battery box 15, and upper cover 16.

[0022] A lithium battery box cover installation device, for example Figure 1 As shown, it includes the following structures:

[0023] Frame 1: The frame 1 is provided with a three-axis screw machine 2, an air-tightness detector 3 and a single-axis screw machine 4 in sequence along the horizontal direction; the frame 1 is also provided with a control cabinet to control the operation of the three-axis screw machine 2, the air-tightness detector 3 and the single-axis screw machine 4. In this embodiment, the controller in the control cabinet adopts a PLC controller; a processing groove is horizontally arranged in the middle part of the frame 1 as a whole, and the three-axis screw machine 2, the air-tightness detector 3 and the single-axis screw machine 4 are respectively installed above the processing groove through a gantry 5, and the two ends of the gantry 5 are respectively fixed to the frame 1 by bolts.

[0024] Carrier plate 6: Carrier plate 6 is used to place lithium battery box 15 and moves in sequence in the processing groove along the three-axis screw machine 2, air tightness tester 3 and single-axis screw machine 4. A clamp seat adapted to the four sides of the lithium battery box 15 is provided on the carrier plate 6; the carrier plate 6 is driven by an external robotic arm to move in sequence in the processing groove. In the processing groove, a plurality of lifting mechanisms are arranged respectively below the three-axis screw machine 2, the air tightness tester 3 and the single-axis screw machine 4. In this embodiment, a hydraulic lifter can be used. The external robotic arm moves the carrier plate 6 to the hydraulic lifter. The hydraulic lifter lifts the carrier plate 6 upward, which can drive the lithium battery box 15 to be lifted upward, so as to facilitate the installation of the upper cover 16 and the air tightness test.

[0025] Fastening mechanism 7: The fastening mechanism 7 is at least three groups and is respectively arranged on both sides of the three-axis screw machine 2, the air tightness detector 3 and the single-axis screw machine 4 to clamp the lithium battery box 15 on the carrier 6. The fastening mechanism 7 includes symmetrically arranged support seats, cylinders respectively arranged on the support seats, and clamping arms 13 respectively driven by the cylinders and moving close to or towards each other, such as Figure 2As shown, the support seat includes a column 8 and a horizontal plate 9 arranged on the top of the column 8, and a mounting plate 12 driven by a cylinder is slidably connected to the horizontal plate. The clamping arms 13 are all arranged on the mounting plate 12, and the side of the clamping arm 13 close to the lithium battery box 15 is provided with an arc groove adapted to the end of the lithium battery box 15, and the inner wall of the arc groove is provided with a wedge block 14 that can be engaged with the upper cover 16. The use of the arc groove and the wedge block 14 can effectively improve the fastening effect of the lithium battery box 15 and the upper cover 16, and avoid the position deviation of the upper cover 16 and the lithium battery box 15 to affect the installation and locking of the bolts. The horizontal plate 9 is provided with a main rail 10 that allows the mounting plate 12 to slide and auxiliary guide rods located on both sides of the main rail 10.

[0026] During the implementation of this embodiment, the external robotic arm moves the carrier plate 6 to the jacking mechanism located on the three-axis screw machine 2, and the jacking mechanism jacks up the carrier plate 6. Then, the fastening mechanism 7 at the position of the three-axis screw machine 2 clamps the battery box and the upper cover 16. The three-axis screw machine 2 screws the upper cover 16 of the battery box and reserves a bolt hole for air tightness detection. Then, the fastening mechanism 7 releases the battery box, and the jacking mechanism descends. The external robotic arm drives the carrier plate 6 to move to the jacking mechanism located on the air tightness detector 3, and the jacking mechanism 7 is used to tighten the battery box. The lifting mechanism lifts the carrier plate 6 upward, and then the airtightness tester 3 performs an airtightness test through the reserved bolt holes. After the test is completed, the fastening mechanism 7 releases the battery box, the lifting mechanism descends, and the external robotic arm drives the carrier plate 6 to move to the lifting mechanism located on the uniaxial screw machine 4. The lifting mechanism lifts the carrier plate 6 upward, and the uniaxial screw machine 4 installs and locks the bolts in the reserved bolt holes. Then the fastening mechanism 7 releases the battery box, the lifting mechanism descends, and the external robotic arm drives the carrier plate 6 to move to the next processing station.

[0027] Compared with the prior art, the utility model can perform one-time positioning and clamping through the clamp seat during the movement of the lithium battery box 15, and perform secondary positioning and clamping through the fastening mechanism 7 during the installation of the upper cover 16. In addition, by using a three-axis screw machine 2, an airtightness tester 3 and a single-axis screw machine 4, the airtightness between the battery box upper cover 16 and the battery shell can be tested during the installation of the upper cover 16 to determine whether the bolts and the upper cover 16 are installed accurately, thereby liberating human resources and reducing the labor intensity of the staff. This not only improves the installation efficiency of the upper cover 16, but also improves the accuracy and automation of the installation of the lithium battery upper cover 16.

[0028] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A lithium battery box cover installation device, characterized in that: include: Frame: The frame is equipped with a three-axis screw machine, an air tightness detector and a single-axis screw machine in sequence; Carrier plate: used for placing the lithium battery box and moving along the three-axis screw machine, air tightness tester and single-axis screw machine in sequence, and a clamping seat adapted to the four sides of the lithium battery box is provided on the carrier plate; At least three sets of fastening mechanisms are respectively arranged on both sides of the three-axis screw machine, the air tightness tester and the single-axis screw machine and clamp the lithium battery box on the carrier plate. The fastening mechanisms include symmetrically arranged support seats, cylinders respectively arranged on the support seats and clamping arms respectively driven by the cylinders and moving close to or towards each other.

2. A lithium battery case upper cover installation device according to claim 1, characterized in that: The frame is provided with a plurality of gantries for installing the three-axis screw machine, the air tightness detector and the single-axis screw machine respectively.

3. A lithium battery case upper cover installation device according to claim 2, characterized in that: The frame is also provided with lifting mechanisms which are respectively located under each gantry and can lift the carrier plate.

4. A lithium battery case upper cover installation device according to claim 3, characterized in that: The frame is provided with processing grooves along the directions of the three-axis screw machine, the air tightness detector and the single-axis screw machine. The carrier plate is located in the processing grooves, and the support seats are respectively arranged on both sides of the processing grooves.

5. A lithium battery case upper cover installation device according to any one of claims 1 to 4, characterized in that: The support seat comprises a column and a horizontal plate arranged on the top of the column, a mounting plate driven by the cylinder is slidably connected to the horizontal plate, and the clamping arms are all arranged on the mounting plate.

6. A lithium battery case upper cover installation device according to claim 5, characterized in that: The transverse plate is provided with a plurality of guide rails capable of accommodating the sliding movement of the mounting plate.

7. A lithium battery case upper cover installation device according to claim 5, characterized in that: An arc groove adapted to the end of the lithium battery box is provided on one side of the clamp arm close to the lithium battery box, and a wedge-shaped block capable of engaging with the upper cover of the lithium battery box is provided on the inner wall of the arc groove.

Images