CN218628845U - Quick detection device of full aluminium power battery tray gas tightness - Google Patents

Abstract

The utility model provides a quick detection device of power battery tray gas tightness, installs the rotation axis on the central line of rack, installs the swivel mount on the rotation axis, and the frame side of swivel mount sets up pneumatic clamping device and locating pin, and the preceding tip of swivel mount sets up pneumatic closing device, and the both ends of swivel mount set up spacing stick, and the position that the swivel mount tip corresponds with spacing stick sets up the jack. The utility model discloses can use in power battery tray gas tightness detects the process, realize the inside gas tightness of short-term test full aluminium cell tray, improve detection efficiency, reduce the production defective rate of battery tray product, the device is fixed firm, easy and simple to handle, easy to maintain.

Description

Quick detection device of full aluminium power battery tray gas tightness

Technical Field

The utility model relates to a new forms of energy battery tray processing technology field specifically is a full aluminium power battery tray gas tightness short-term test device.

Background

In recent years, new energy electric vehicles gradually replace fuel automobiles, and become an increasing automobile type. The power battery in the electric automobile is a storage component of electric energy thereof, and belongs to a core component in the whole automobile. The power battery module is borne by the battery tray, and the battery tray is connected with the vehicle underframe to form a firm bearing vehicle body. Because the weight of the new energy electric vehicle is closely related to the endurance mileage of the new energy electric vehicle, based on the consideration of light weight of the vehicle body, the aluminum frame structure achieves excellent comprehensive indexes such as light weight, corrosion resistance and recovery residual value, and becomes the choice of more and more new energy vehicles, and the battery tray is used as an important structural part of the new energy electric vehicle, and the battery tray can not be processed and manufactured by using aluminum alloy materials.

Most of the existing aluminum alloy battery trays are formed by connecting and combining aluminum alloy sections, and the hollow aluminum alloy sections have the advantages of small mass and strong bearing capacity. Utilize its changeable hollow structure, the mutual overlap joint of head and the tail or tenon fourth of the twelve earthly branches constitute battery tray and move about freely and quickly frame load-bearing structure, then arc-welding at the junction to consolidate the junction between section bar and the section bar, and sealed, in order to avoid outside moisture to get into the section bar inner chamber, and then enter into the battery module of top, influence vehicle electric system, cause the trouble and damage. On the other hand, the aluminium alloy is formed by the extrusion of combination reposition of redundant personnel extrusion die, and in aluminium flow forming process, can produce the metal seam welding seam that welds in aluminium alloy length direction, if extrusion process sets up inappropriately, cause the aluminium to flow to fuse (weld) the effect bad, and when aluminium alloy inner chamber gas pressure reached a definite time, welding seam department also can produce the fracture, influences the seal of whole aluminum alloy battery tray. Therefore, in the process of manufacturing the battery tray by using the aluminum alloy, strict control and detection on the whole air tightness of the battery tray are also important in the manufacturing process.

In the conventional air tightness inspection of the aluminum alloy battery tray, the whole battery tray needs to be placed on a platform and is tightly pressed by a clamp, an operator inserts a high-pressure air pipe into an air inlet, and coats a foaming agent on the surface of the battery tray to find an air leakage point; after the air leakage condition of the upper surface of the tray is observed, the clamp is loosened, the whole tray is turned over, the foaming agent is coated, and the air leakage point of the lower surface of the tray is searched. The weight of the battery tray reaches tens of kilograms, the repeated operation turnover efficiency is very low, and the air tightness detection frequency of the battery tray is influenced.

Disclosure of Invention

The utility model aims at providing a quick detection device of full aluminium power battery tray gas tightness can use in power battery tray gas tightness detects the process, realizes the inside gas tightness of short-term test full aluminium battery tray, improves detection efficiency, has reduced the production defective rate of battery tray product, and the device is fixed firm, and is easy and simple to handle, easy to maintain.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the utility model provides a full aluminium power battery tray gas tightness short-term test device, installs the rotation axis on the central line of rack, installs the swivel mount on the rotation axis, and the frame side of swivel mount sets up pneumatic clamping device and locating pin, and the preceding tip of swivel mount sets up pneumatic closing device, and the both ends of swivel mount set up spacing stick, and the position that the swivel mount tip and spacing stick correspond sets up the jack. The battery tray can be accurately and firmly positioned on the rotating frame through the pneumatic clamping device, the positioning pin and the pneumatic clamping device, the rotating frame can realize the free 360-degree rotation of the battery tray, and the battery tray can be turned over without manpower to check the air tightness.

The number of the limiting rods is 2, and the positions of the limiting rods are matched with the positions of the jacks on the front surface and the back surface of the rotating frame respectively. The positive and negative location of swivel mount is realized to spacing stick, prevents that the swivel mount from taking place to deflect in the detection gas tightness process.

The front end of the limiting rod is provided with a limiting bolt hole, and a limiting bolt is screwed into the limiting bolt hole. The insertion depth of the limiting rod can be controlled by the limiting bolt,

the middle part of the rotating frame is connected with the side edge through a horizontal cross beam. The rigidity of the cross beam and the reinforcing frame type rotating frame prevents the rotating frame from deforming due to insufficient integral rigidity, and the clamping and the positioning of the battery tray are influenced.

And the air valves of the pneumatic clamping device and the pneumatic pressing device are controlled by a control switch.

The control switch is electrically connected with the high-pressure air valve.

Through the control switch who sets up on the rack, can control the switch that presss from both sides tight positioner and high-pressure pneumatic valve simultaneously, improve the degree of automation of operation.

The method for rapidly detecting the air tightness of the tray of the all-aluminum power battery comprises the following steps:

(1) Placing the assembled and welded battery tray on a rotating frame with the right side upward, and aligning the battery tray mounting hole with the positioning pin;

(2) The pneumatic clamping device is controlled by the control switch, a pressing block of the pneumatic clamping device rotates to press the side part of the battery tray downwards, and a pushing head of the pneumatic clamping device presses the front end part of the battery tray;

(3) The limiting rod is pushed tightly manually, the end part of the limiting rod is inserted into the side face insertion hole of the rotating frame, and the rotating frame is positioned;

(4) Inserting a high-pressure air pipe at the reserved hole at the end part of the battery tray, continuously ventilating, arranging a rubber plug at the air inlet of the high-pressure air pipe, and matching the shape of the plug with the shape of the reserved hole at the end part of the battery tray;

(5) Coating foaming water on the whole upper end surface of the battery tray, and observing whether a gas leakage point exists;

(6) And (4) after the front inspection is finished, drawing out the limiting rod, rotating the rotating frame, enabling the bottom surface of the battery tray to face upwards, inserting the limiting rod for positioning, and repeating the operation of the step (5) to inspect the air tightness of the back surface of the battery tray.

The utility model has the advantages that:

1. the utility model can realize the rapid and convenient detection of the internal air tightness of the all-aluminum battery tray, improve the detection efficiency and reduce the reject ratio of the battery tray production; the rotating frame can realize the quick conversion of the front side and the back side of the power battery tray, so that the effect of detecting the air tightness of the front side and the back side can be achieved by clamping the tray once. The workload and the working strength of detection personnel are greatly reduced.

2. The utility model discloses the device is fixed firm to the battery tray, and is easy and simple to handle, easily trains operation workman, and it is convenient to maintain workman's maintenance.

Description of the drawings:

FIG. 1 is a schematic view of the appearance structure of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at I;

FIG. 3 is a schematic view of the structure of the main view direction of the present invention;

FIG. 4 is a schematic view of the structure of FIG. 3 in the direction A;

the serial numbers and component names in the figures are: 1-a gantry; 2-a rotating frame; 21-a rotating shaft; 3-a pneumatic clamping device; 4-positioning pins; 5-a pneumatic pressing device; 6-manual quick clamping; 7-a limit rod; 8-control the switch.

Detailed Description

Example 1

The utility model provides a full aluminium power battery tray gas tightness short-term test device, installs rotation axis 21 on the central line of rack 1, installs swivel mount 2 on the rotation axis 21, and the frame side of swivel mount 2 sets up pneumatic clamping device 3 and locating pin 4, and the preceding tip of swivel mount 2 sets up pneumatic closing device 5, and the both ends of swivel mount 2 set up spacing stick 7, and the position that 2 tip of swivel mount and spacing stick 7 correspond sets up the jack.

The number of the limiting rods 7 is 2, and the positions of the limiting rods are respectively matched with the positions of the jacks on the front surface and the back surface of the rotating frame 2.

And the front end of the limiting rod 7 is provided with a limiting bolt hole, and a limiting bolt is screwed into the limiting bolt hole.

The middle part of the rotating frame 2 is connected with the side edge through a horizontal cross beam.

And air valves of the pneumatic clamping device 3 and the pneumatic clamping device 5 are controlled by a control switch 8.

The control switch 8 is electrically connected with the high-pressure air valve.

Claims (6)

1. The utility model provides a quick detection device of full aluminium power battery tray gas tightness which characterized in that: the rotary table is characterized in that a rotary shaft (21) is installed on the center line of a table frame (1), a rotary frame (2) is installed on the rotary shaft (21), a pneumatic clamping device (3) and a positioning pin (4) are arranged on the side face of a frame of the rotary frame (2), a pneumatic pressing device (5) is arranged at the front end portion of the rotary frame (2), limiting rods (7) are arranged at two ends of the rotary frame (2), and jacks are arranged at positions, corresponding to the limiting rods (7), of the end portion of the rotary frame (2).

2. The quick detection device of full aluminium power battery tray gas tightness of claim 1 characterized in that: the number of the limiting rods (7) is 2, and the positions of the limiting rods are respectively matched with the positions of the jacks on the front side and the back side of the rotating frame (2).

3. The device for rapidly detecting the air tightness of the all-aluminum power battery tray according to claim 1, is characterized in that: the front end of the limiting rod (7) is provided with a limiting bolt hole, and a limiting bolt is screwed into the limiting bolt hole.

4. The device for rapidly detecting the air tightness of the all-aluminum power battery tray according to claim 1, is characterized in that: the middle part of the rotating frame (2) is connected with the side edge through a horizontal cross beam.

5. The quick detection device of full aluminium power battery tray gas tightness of claim 1 characterized in that: and air valves of the pneumatic clamping device (3) and the pneumatic clamping device (5) are controlled by a control switch (8).

6. The device for rapidly detecting the air tightness of the all-aluminum power battery tray according to claim 5, is characterized in that: the control switch (8) is electrically connected with the high-pressure air valve.

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