CN215146380U - Semi-automatic flexible production line for battery box frame - Google Patents

Abstract

The utility model discloses a flexible production line of battery case frame semi-automatization, including five stations of connection in proper order, the CNC station includes machine tooling equipment and is used for the anchor clamps of positioning workpiece, and parts welding station adopts machine position changing duplex position mode, and duplex position welding station adopts the slip table formula, and the rivet pulling station is used for carrying out the rivet pulling work of work piece boundary beam, is equipped with the balanced hanging rivet gun that hangs, and the gas is examined the station and is adopted the differential pressure method to carry out the gas of work piece and examine the test. The utility model discloses an adopt modes such as semi-automatization production line and flexibility overall arrangement, can reduce production area, realize the fast switch-over of different flows, improve the production efficiency of product, guarantee the stability and the product quality of production.

Description

Semi-automatic flexible production line for battery box frame

Technical Field

The utility model relates to a battery case production facility technical field, concretely relates to flexible production line of battery case frame semi-automatization is applicable to new energy automobile.

Background

The battery box is mainly used for terminal electronic equipment, a control circuit board electrically connected with the terminal electronic equipment is generally arranged in the battery box, and the battery box is flexible and convenient to use. With the popularization of new energy automobiles, the demand of automobile batteries is rapidly increased, and the automobile battery box has more requirements on structure and performance. The manufacturing process of the automobile battery box is more complex, and the efficiency of the production line suitable for the common battery box is not high. At present, the battery box assembly production line and the process have the following technical problems:

1. when CNC, welding, rivet pulling and gas detection are carried out on the battery box frame manually under normal conditions, the production efficiency is low, the product production is unstable, and the product quality is not easy to guarantee;

2. when the battery box frame is processed manually, the production occupied area is large, and great waste is caused to a space workshop;

3. the production period can not be ensured;

4. the labor intensity of workers is high, the working environment is poor, the safety protection measures for the workers are low, and the personal safety of the workers is seriously influenced;

5. the problem of low compatibility can appear again in full automatization battery case frame production line.

SUMMERY OF THE UTILITY MODEL

The technical purpose is as follows: to the above, the utility model discloses a flexible production line of battery case frame semi-automatization and production technology, it can reduce production area through adopting modes such as semi-automatization production line and flexibility overall arrangement, realizes the fast switch-over of different flows, improves the production efficiency of product, guarantees the stability and the product quality of production.

The technical scheme is as follows: in order to achieve the technical purpose, the utility model adopts the following technical scheme:

the utility model provides a flexible production line of battery case frame semi-automatization which characterized in that: comprises a CNC station, a spare part welding station, an assembly welding station, a rivet pulling station and an air detection station which are connected in sequence, wherein,

the CNC station comprises a machining workbench and a CNC station control panel, and a machining head for processing an initial workpiece is arranged on the machining workbench;

spare part welding station includes the A station, B station and spare part welding station control system and first welding robot switch board, the triaxial machine of shifting, first welding jig, first welding robot, first clear rifle shear wire, welding power supply, all be equipped with the first welding jig who is used for the centre gripping work piece on A station and the B station, shift the position that A station or B station are converted into first welding robot through the triaxial machine, the outside of first welding robot is equipped with first clear rifle shear wire, the removal and the welding action of first welding robot are controlled by first welding robot switch board and welding power supply, cut the welding rod by first clear rifle shear wire after the welding is accomplished.

Preferably, the assembly welding station is provided with a track and a safety room positioned on the track, a second welding robot and a second gun cleaning and wire cutting device which are used for completing assembly welding are arranged in the safety room, and a rolling door is arranged on the side surface of the safety room; the both sides in safety house are equipped with respectively along the second welding jig of track removal, are equipped with the unipolar machine of shifting on the second welding jig, and assembly station control system, second welding robot switch board and second welding power supply are arranged in the outside in track and safety house.

Preferably, the rivet pulling station comprises a safety fence, a workbench and a translation hanging bracket arranged on the workbench, and the translation hanging bracket is provided with a balance hanging rivet pulling gun for rivet pulling work of the workpiece edge beam.

Preferably, the gas detection station comprises a bus valve island, a push rod, a gas detector, a detection clamp and a pressing cylinder, the detection clamp and the pressing cylinder are used for clamping and pressing a workpiece to be subjected to gas detection, a pressure difference method is adopted for gas detection testing of the workpiece, and the gas detector is used for displaying a detection result.

Preferably, the welding modes of the parts welding station and the assembly welding station are both gas shielded welding.

Preferably, the parts welding station and the assembly welding station are both provided with a smoke exhaust and dust removal device.

Preferably, the gas detection station is provided with a gas detection bottom module filled in a nylon block mode and used for reducing the volume of the gas filling cavity.

Adopt the utility model discloses a production technology of battery case frame semi-automatization flexible production line, including following step:

s1, CNC positioning, namely, performing machining and punching on incoming materials at a CNC station, selecting a designated hole position as a fabrication hole of the whole production line, and taking the fabrication hole as a positioning reference;

s2, welding parts, namely conveying the machined parts to a part welding station, welding the parts in a double-station mode, and loading the next workpiece with the surface A facing upwards when the first welding robot is used for welding the surface A of the current workpiece;

s3, assembly welding: conveying the workpieces subjected to the part welding to an assembly welding station, and integrally assembling; in the assembling process, the installation operation is carried out by depending on the designed positioning surface of the clamp; after assembly, moving a second welding fixture provided with a workpiece to a second robot welding station through a rail, and performing robot welding;

s4, rivet pulling treatment: conveying the workpiece welded by the assembly to a riveting station, and performing riveting operation on the workpiece by virtue of a manual riveting device, wherein a manual riveting gun is hung on a cantilever crane;

s5, gas detection processing: after the riveting is finished, transporting to a pneumatic inspection station; placing a workpiece on a workbench, automatically compressing the workpiece by a clamp, and moving the workpiece into the lower part of the cylinder; the workpiece is tightly contacted with the edge of the bottom rubber in a cylinder pressing mode, so that the stability of air tightness is ensured;

starting gas detection, and if the gas detection result meets the index, transporting to a finished product area; if the gas detection is not qualified, a suction gun leak detector is used for searching a leak point, and repair welding operation is carried out; and after the repair welding is finished, performing gas detection again until the gas detection is qualified.

Specifically, step S6 includes:

s6.1, firstly, detecting by a dry air method: the difference of the internal pressure and the external pressure of a tested sample is controlled by vacuumizing, if leakage exists, the difference of the internal pressure and the external pressure is reduced, and the tightness can be detected by detecting the change of the air pressure;

s6.1, after the detection by the dry air method is passed, carrying out detection by a tracer gas method; introducing helium gas into the workpiece, and detecting the leakage amount of the helium gas of the workpiece to be detected by adopting a mass spectrum analyzer to determine the sealing qualification of the workpiece; and marking the unqualified workpiece and the leakage point for later-stage inspection and repair.

Has the advantages that: due to the adoption of the technical scheme, the utility model discloses following technological effect has:

1) the production efficiency, the stability and the quality of the product can be improved by adopting a semi-automatic line;

2) the labor condition can be improved, the production floor area is reduced, and the production cost is reduced;

3) the production period is shortened, and the production balance is ensured;

4) by adopting flexible layout, the quick switching of different products can be realized, and the model changing function can be realized only by changing the welding fixture;

5) the welding procedure adopts a double-station mode, the feeding and discharging time is saved, the beat is optimized, and the application range is wide;

6) in the whole welding process, manual operation can be isolated, and personal safety accidents of personnel caused by personnel operation can be reduced;

7) and an automatic conveying mechanism is arranged between each station, so that the automation degree can be further improved.

Drawings

Fig. 1 is a schematic structural view of a semi-automatic flexible production line for battery box frames according to the present invention;

FIG. 2 is a schematic structural diagram of a No. 1 CNC station in the present invention;

FIG. 3 is a schematic structural diagram of a No. 2 parts welding station in the present invention;

FIG. 4 is a schematic structural diagram of a welding station of the 3# assembly in the present invention;

fig. 5 is a schematic structural view of a 4# rivet station in the present invention;

fig. 6 is a schematic structural view of a 5# gas detection station in the present invention;

fig. 7 is a schematic view of a preferred embodiment of a middle product battery case frame of the present invention;

wherein, 1-CNC station 1, 11-machining workbench, 12-CNC station control panel, 13-machining head;

2-parts welding station, 21-parts welding station control system, 22-first welding robot control cabinet, 23-triaxial positioner, 24-first welding fixture, 25-first welding robot, 26-first gun cleaning and wire cutting, 27-first welding power supply and 20-parts welding workpiece;

3-assembly welding station, 31-rail, 32-safety house, 33-rolling door, 34-second welding robot, 35-second gun cleaning and wire cutting, 36-second welding fixture, 37-single-shaft positioner, 38-assembly station control system, 39-second welding robot control cabinet, 310-second welding power supply, material frame 311 and 30-assembly welding workpiece;

4-rivet pulling station, 41-safety fence, 42-workbench, 43-translation hanger 43, and 40-rivet pulling workpiece;

5-air detection station, 51-bus valve island, 52-push rod, 53-air detector, 54-detection clamp and 55-pressing cylinder;

6-battery bottom support frame.

Detailed Description

As shown in fig. 1 and fig. 2, the utility model discloses a flexible production line of battery case frame semi-automatization, its process flow includes following step:

step one, a No. 1 CNC station, namely a numerical control milling machine, is used for punching holes on incoming materials, and designated hole positions are selected as process holes of the whole production flow and are used as positioning references.

As shown in fig. 2, the CNC station 1 is provided with a machining table 11, a machining head 13 and a CNC station control panel 12.

The purpose of CNC station lies in: 1) the CNC station consists of machining equipment and a clamp, so that the stability of the machining process is ensured; 2) the machining equipment is arranged in the working procedure, so that the aluminum scraps are easy to discharge, and if machining is carried out after the finished product is welded in the later period, the aluminum scraps can remain in the part and cannot be removed; 2. and (3) manually or automatically conveying the machined parts to a No. 2 part welding station, and carrying out feeding and discharging operation on the surface B when the surface A of the welding robot is welded by adopting a double-station mode.

And step two, after the welding of the parts in the 2# part welding station, namely the sub-assembly station, is finished, the parts are transported to the 3# assembly welding station by a manual cart or an automatic machine, and the parts are assembled integrally manually or by the automatic machine. In the assembling process, the assembling is carried out by depending on the designed positioning surface of the clamp, and the assembling operation is carried out. After assembly, the clamp provided with the workpiece is moved to a welding station by the sliding table for robot welding;

as shown in fig. 3, the 2# parts welding station 2 is provided with a station a, a station B, a parts welding station control system 21, a first gun cleaning wire shearing 26, a three-axis positioner 23, a first welding power supply 27, a first welding fixture 24, a first welding robot 25 and a first welding robot control cabinet 22, each station is provided with the first welding fixture 24 for clamping the welded parts welding workpiece 20, the first welding robot 25 is provided with a welding device, the movement and welding action of the first welding robot 25 are controlled by the first welding robot control cabinet 22, the positions of the station a and the station B are switched by the three-axis positioner 23, so that loading, unloading and welding are performed simultaneously, the welded parts welding workpiece 20 completes automatic welding treatment on the 2# parts welding station, and welding rods are cut off by the gun cleaning wire shearing 26 after welding is completed.

Sub-assembly station: 1) sub-assembly welding of related parts is carried out, and welding is carried out in a gas shield welding mode; 2) the whole workstation adopts a double-station mode of a positioner, and a three-axis positioner is used as an external axis. When the station A is welded, the station B can realize manual or automatic mechanical feeding and discharging without mutual interference; the baffle is arranged between the two ends, so that the interference of arc light and splashing is prevented during manual operation; 3) and smoke exhaust and dust removal equipment is arranged, so that the environmental quality in the welding room is optimized.

And step three, after the 3# assembly station is welded, manually or automatically conveying the assembly to a 4# rivet station through a trolley, and carrying out rivet pulling operation on the battery box frame boundary beam by means of a manual rivet pulling device. The manual hand riveter is hung on the cantilever crane, so that the manual hand riveter is convenient for workers to operate.

As shown in fig. 4, the assembly station 3 includes a rail 31, a safe room 32 is provided on the rail 31, a second welding robot 34 and a second gun cleaning shear 35 for completing assembly welding are provided in the safe room 32, and a rolling door 33 is provided on a side surface of the safe room 32. Two sides of the safe room 32 are respectively provided with a second welding fixture 36, the second welding fixture 36 is provided with a single-shaft positioner 37 for driving the second welding fixture 36 to move along the rail 31, and an assembly station control system 38, a second welding robot control cabinet 39, a second welding power supply 310 and a material frame 311 for transferring the workpiece 30 are arranged outside the rail 31 and the safe room 32. The workpiece 30 completes the assembly welding at the # 3 assembly station.

Assembling stations: 1) performing assembly welding of the workpiece, and performing welding in a gas shield welding mode; 2) the whole workstation adopts a sliding table type double-station form and consists of two single-shaft positioner and a track. When the positioner slides to the outside, the two sides of the station are loaded and unloaded manually or through an automatic machine. After the feeding is completed, the positioner slides to an internal welding station. The two robots work cooperatively, so that the welding efficiency is improved; 3) and smoke exhaust and dust removal equipment is arranged, so that the environmental quality in the welding room is optimized.

And step four, after the rivet pulling is completed, transporting to an air detection station. And placing the workpiece on the moving platform, automatically compressing the workpiece by the clamp, and moving the workpiece into the lower part of the cylinder. The work piece is tightly contacted with the bottom rubber edge in a cylinder pressing mode, so that the air tightness stability is ensured.

As shown in fig. 5, the riveting station 4 is provided with a safety fence 41, a workbench 42, a translation cradle 43 and a riveting workpiece 44.

Rivet pulling station: 1) performing rivet pulling work on the edge beam of the workpiece in a manual or automatic mechanical rivet pulling mode; 2) the riveting gun is hung through the balance hanger, the operation habit of workers is met, and the riveting efficiency is improved. 3) And the form of synchronous rivet pulling on two sides is adopted, so that the rivet pulling efficiency is ensured to meet the whole line beat.

And step five, starting gas detection, and if the gas detection result meets the index, transporting to a finished product area. And if the gas detection is unqualified, a suction gun leak detector is used for searching a leak point, and repair welding operation is carried out. And after the repair welding is finished, performing gas detection again until the gas detection is qualified.

As shown in fig. 6, the gas detection station 5 includes a bus valve island 51, a push rod 52, a gas detector 53, a detection clamp 54 and a pressing cylinder 55, the detection clamp 54 and the pressing cylinder 55 are used for clamping and pressing a workpiece to be gas detected, a pressure difference method is used for gas detection testing of the workpiece, and the gas detector 53 is used for displaying a detection result. The push rod 52 is used to adjust the position of the inspection fixture at the air inspection station where the control lines for each fixture are connected to the bus valve island 51.

A gas detection station: 1) and (4) carrying out gas detection testing on the workpiece by adopting a differential pressure method. 2) Firstly, detecting by a dry air method, and detecting by a trace gas method after the detection is passed; a dry air method: the difference of the internal pressure and the external pressure of a tested sample is controlled by vacuumizing, if leakage exists, the difference of the internal pressure and the external pressure is reduced, and the tightness can be detected by detecting the change of the air pressure; and after the detection by the dry air method is passed, introducing helium into the workpiece to carry out a tracer gas method: the mass spectrum analyzer can be used for detecting the leakage amount of helium of the workpiece to be detected to determine the sealing qualification of the workpiece; unqualified workpieces and leakage points can be marked by the station, so that later-stage inspection and repair are facilitated; 3) the gas detection bottom module is filled in a nylon block mode, the volume of the gas filling cavity is reduced, and the gas detection efficiency is improved.

Fig. 7 is a schematic diagram of a preferred embodiment of a finished battery case frame manufactured using the production line and process of the present invention.

The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims (7)

1. The utility model provides a flexible production line of battery case frame semi-automatization which characterized in that: comprises a CNC station (1), a spare part welding station (2), an assembly welding station (3), a rivet pulling station (4) and an air detection station (5) which are connected in sequence, wherein,

the CNC station (1) comprises a machining workbench (11) and a CNC station control panel (12), and a machining head (13) for processing an initial workpiece is arranged on the machining workbench (11);

spare part welding station (2) includes A station, B station and spare part welding station control system (21) and first welding robot switch board (22), triaxial positioner (23), first welding jig (24), first welding robot (25), first clear rifle shear wire (26), and welding power supply (27), all be equipped with first welding jig (24) that are used for the centre gripping work piece on A station and the B station, shift A station or B station to the position of first welding robot through triaxial positioner (23), the outside of first welding robot (25) is equipped with first clear rifle shear wire (26), the removal and the welding action of first welding robot (25) are controlled by first welding robot switch board (22) and welding power supply (27), cut the welding rod by first clear rifle shear wire (26) after the welding is accomplished.

2. A battery pack frame semi-automated flexible production line according to claim 1, wherein: the assembly welding station (3) is provided with a track (31) and a safety room (32) positioned on the track (31), a second welding robot (34) and a second gun cleaning and wire cutting device (35) for completing assembly welding are arranged in the safety room (32), and a rolling door (33) is arranged on the side surface of the safety room (32); the both sides of safe room (32) are equipped with respectively along second welding jig (36) of track (31) removal, are equipped with unipolar machine of shifting (37) on second welding jig (36), and assembly station control system (38), second welding robot switch board (39) and second welding power supply (310) are arranged in the outside of track (31) and safe room (32).

3. A battery pack frame semi-automated flexible production line according to claim 1, wherein: the rivet pulling station (4) comprises a safety fence (41), a workbench (42) and a translation hanging bracket (43) arranged on the workbench (42), wherein a balance hanging rivet pulling gun is arranged on the translation hanging bracket (43) and used for rivet pulling work of the workpiece boundary beam.

4. A battery pack frame semi-automated flexible production line according to claim 1, wherein: the gas detection station (5) comprises a bus valve island (51), a push rod (52), a gas detector (53), a detection clamp (54) and a pressing cylinder (55), wherein the detection clamp (54) and the pressing cylinder (55) are used for clamping and pressing a workpiece to be subjected to gas detection, a pressure difference method is adopted for gas detection test of the workpiece, and the gas detector (53) is used for displaying a detection result.

5. A battery pack frame semi-automated flexible production line according to claim 1, wherein: and the welding modes of the parts welding station (2) and the assembly welding station (3) are gas shielded welding.

6. A battery pack frame semi-automated flexible production line according to claim 1, wherein: and the spare part welding station (2) and the assembly welding station (3) are both provided with smoke exhaust and dust removal devices.

7. A battery pack frame semi-automated flexible production line according to claim 1, wherein: the gas detection station is provided with a gas detection bottom module which is filled in a nylon block form.

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