Multi-type vehicle body chassis sealing detection device

Abstract

The utility model belongs to the automobile manufacturing technical field discloses a kind of multi-vehicle body chassis sealing detection device, including hoisting equipment, linear conveying equipment and air tightness detector;Linear conveying equipment is connected with the skid of supporting vehicle body;It further includes side top machine;The side top machine includes lifting device in the linear conveying equipment two sides, for lifting the vehicle body;Linear conveying equipment is also connected with tool slide rack;Battery pack profiling tool can be placed to the tool slide rack upper end, and both are fixed by pin structure;The battery pack profiling tool has multiple, and each battery pack profiling tool corresponds to a vehicle type.The utility model is through the battery pack profiling tool of multiple vehicle types and vehicle body butt joint, can adapt to the air tightness detection needs of multiple vehicle types;The lifting of vehicle body, the transfer of battery pack profiling tool are all completed by mechanical equipment, and labor intensity is low, and efficiency is high.

Description

Technical Field

[0001] This utility model belongs to the field of automobile manufacturing technology and relates to a multi-model body chassis sealing test device. Background Technology

[0002] As new energy vehicles continue to improve in terms of spaciousness, long range, and high safety, the battery pack technology that works in conjunction with the vehicle body is also being upgraded. Currently, more solutions integrate the battery pack with the vehicle chassis. While meeting the requirements of high-strength chassis structure and high-quality welding, the sealing performance of the vehicle chassis is also a key requirement for achieving this technology.

[0003] Currently, most vehicle chassis sealing tests are conducted manually. The vehicle body is placed behind a sealing test device, and bolts are used to connect the device to pre-drilled threaded holes on both sides of the body to lock it in place and perform the sealing test. In mass production, this method increases labor intensity, is inefficient, and lacks flexibility. Furthermore, as the number of vehicle models requiring sealing tests increases, a single-model sealing test device is insufficient to meet the needs of actual production. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model provides a multi-vehicle chassis sealing performance testing device. The purpose is to address the sealing performance testing needs of various vehicle models. Before the vehicle enters the sealing performance testing station, it is detected by a vehicle model recognition system. A skid carrying the vehicle is then positioned at a predetermined location on the roller bed. The lifting component of the side-mounted machine has a telescopic function. After telescopicating to the corresponding position according to different vehicle models, the vehicle is lifted to a predetermined height. Simultaneously, the tooling slide detects whether the battery pack contouring tooling on it corresponds to the vehicle model based on the vehicle model recognition signal. If they match, the tooling slide moves from its initial position on the roller bed to the predetermined position. If they do not match, a hoisting device switches the battery pack contouring tooling to the corresponding tooling and moves it to the predetermined position. The side-mounted machine then places the vehicle onto the battery pack contouring tooling. The two are securely bonded together by a high-stroke double-hook locking structure around the battery pack contouring tooling. Subsequently, the airtightness testing instrument is activated to perform a sealing performance test on the vehicle chassis. This device can adapt to the airtightness testing needs of multiple vehicle models, with low labor intensity and high efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-vehicle chassis sealing performance testing device, comprising a hoisting device, a linear conveying device, and an airtightness testing instrument disposed on one side of the linear conveying device; a skid is connected to the linear conveying device for supporting the vehicle body to be tested for sealing performance; it also includes a side-mounting machine; the side-mounting machine includes lifting devices arranged on both sides of the linear conveying device, each lifting device including a pair of retractable lifting components, for the four lifting components to be inserted into the bottom of the vehicle body from both sides to lift it; a tooling carriage is also connected to the linear conveying device, for the tooling carriage to be transported along the linear conveying device. The equipment is moved horizontally; the battery pack contouring fixture can be placed on the upper end of the fixture carriage, and the two are fixed by a pin structure; there are multiple battery pack contouring fixtures, which are stored in the fixture storage area on the side of the linear conveyor; each battery pack contouring fixture corresponds to a vehicle model, and each of its four corners is equipped with a double hook locking device; the double hook locking device is used to connect the battery pack contouring fixture to the vehicle body to form a complete vehicle body; a pipe connector is provided at the front end of the battery pack contouring fixture, which is used to connect the air tightness tester through a hose; the hoisting equipment is located above the fixture storage area, and is used to transfer the battery pack contouring fixture between the fixture carriage and the storage area.

[0006] As a further optimization, the linear conveying equipment includes two stations: an inspection station and a replacement station. At the inspection station, the tooling carriage supports the complete vehicle body for sealing inspection. At the replacement station, the battery pack conformal tooling on the tooling carriage is replaced using the hoisting equipment.

[0007] As a further optimization, the linear conveying equipment includes a first roller conveyor and a second roller conveyor, which are respectively used to convey the skid to the inspection station and to convey the tooling carriage of the changing station to the inspection station.

[0008] As a further optimization, a skid positioner and a carriage positioner are also included, which are used to fix the skid and the tooling carriage at the inspection station, respectively.

[0009] As a further optimization, the tooling carriage is equipped with a detection switch for detecting whether the vehicle model of the battery pack contour tooling placed on the tooling carriage corresponds to the vehicle model of the car body.

[0010] As a further optimization, the upper part of the double hook locking device is provided with a positioning pin with a guide head, and rotatable locking hooks are provided on both sides of the positioning pin. The lower end of the locking hook is connected to the locking cylinder through a linkage mechanism, which is used to drive the pair of locking hooks to rotate by the extension and retraction of the locking cylinder.

[0011] As a further optimization, an electronic control unit is also included, which is connected to the side top machine, the first roller conveyor, the second roller conveyor, the skid positioner, the carriage positioner, the detection switch, and the locking cylinder circuit.

[0012] As a further optimization, the hoisting equipment includes a steel frame that covers the linear conveyor. An electric hoist assembly capable of moving in both directions is provided on the upper part of the steel frame for hoisting the battery pack contour tooling and transferring it between the tooling carriage and the storage area.

[0013] As a further optimization, a tooling rack is provided in the tooling storage area; the battery pack conforming tooling is placed on the tooling rack.

[0014] As a further optimization, the tooling rack includes a fixed frame and a movable frame, on which the battery pack conforming tooling is placed; the fixed frame covers the movable frame, and the bottom of the movable frame is provided with rollers.

[0015] Compared with the prior art, the beneficial effects of this utility model are: this utility model can meet the air tightness testing needs of multiple vehicle models by docking the battery pack contouring tool with the vehicle body; the lifting of the vehicle body and the transfer of the battery pack contouring tool are all completed by mechanical equipment, which reduces labor intensity and increases efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0017] Figure 2 for Figure 1 The left view;

[0018] Figure 3 for Figure 1 Top view;

[0019] Figure 4 This is a three-dimensional structural diagram of the lifting component according to an embodiment of the present utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the double-hook locking device according to an embodiment of the present invention;

[0021] Figure 6 This is a schematic diagram of the tooling carriage according to an embodiment of the present utility model;

[0022] Figure 7 This is a schematic diagram of the tooling rack according to an embodiment of the present invention.

[0023] The correspondence between the technical features in the figure and the reference numerals is as follows: Skid 1; Body 2; First roller conveyor 3; Skid positioner 4; Side top machine 5; Lifting device 51; Tooling carriage 6; Inspection station 61; Changing station 62; Battery pack contouring tooling 7; Pipe joint 71; Second roller conveyor 8; Lifting equipment 9; Tooling rack 10; Fixed frame 101; Movable frame 102; Carriage positioner 11; Air tightness tester 12; Lifting component 13; Double hook locking device 14; Locking cylinder 141; Positioning pin 15; Locking hook 16; Detection switch 17. Detailed Implementation

[0024] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some preferred embodiments of this utility model, and not all embodiments. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of this utility model, and are not intended to limit the protection scope of this utility model.

[0025] Example: Please refer to Figure 1-7 This utility model provides the following technical solution: a multi-vehicle chassis sealing test device, including a skid 1 and a vehicle body 2, a first roller conveyor 3, a skid positioner 4, a side top machine 5, a tooling carriage 6, a battery pack contouring tooling 7, a second roller conveyor 8, a hoisting device 9, a tooling rack 10, a carriage positioner 11, an airtightness tester 12, a lifting component 13, a double hook locking device 14, etc.

[0026] After the skid 1 carrying the vehicle body 2 passes through the vehicle model recognition system and stops at a predetermined position on the first roller conveyor 3, the skid positioner 4 installed on the first roller conveyor 3 clamps and fixes the skid 1 at that position by driving the clamping arm through the motor. The side lifter 5 includes a pair of lifting devices 51. The lifting component 13 of the lifting device 51 has a telescopic function. Under the action of the cylinder of the side lifter 5, it telescopically extends to the corresponding position according to different vehicle models and lifts the vehicle body 2 to a certain height. At the same time, the tooling carriage 6 identifies whether the battery pack contour tooling 7 on it is the tooling corresponding to the vehicle model through the detection switch 17 according to the vehicle model recognition signal. It is connected to the tooling carriage 6 by a pin structure. The pin structure is preferably a smooth hole screw connection to adapt to the battery pack contour tooling 7 of more vehicle models. If the vehicle models are the same, the tooling carriage 6 will move from the initial position of the second roller conveyor 8 to the predetermined inspection station 61. If they are different, the required tooling will be pulled out from the nested battery pack contouring tooling 7 rack at the changing station 62. The hoisting equipment 9 will transfer the battery pack contouring tooling 7 to the tooling rack 10, and then switch the battery pack contouring tooling 7 corresponding to the vehicle model to the tooling carriage 6 before moving it to the predetermined inspection station 61. The tooling carriage 6 positioner will clamp and position the tooling carriage 6 by pushing the clamping arm with a cylinder. The side top machine 5 will place the vehicle body 2 onto the battery pack contouring tooling 7. The double hook locking device 14 around the battery pack contouring tooling 7 will have a guide positioning pin 15 on the upper part to allow the vehicle body 2 to land on the battery pack contouring tooling 7. Then, under the action of the cylinder of the double hook locking device 14, the high-stroke double locking hook 16 will be pulled to firmly attach the two together. Then, the air tightness tester 12 will be started to perform a sealing test on the chassis of the vehicle body 2.

[0027] A tooling rack 10 is provided in the tooling storage area; the battery pack contouring tool 7 is placed on the tooling rack 10. Preferably, the tooling rack 10 includes a fixed frame 101 and a movable frame 102, and the battery pack contouring tool 7 is placed on both the fixed frame 101 and the movable frame 102; the fixed frame 101 covers the movable frame 102, and the bottom of the movable frame 102 is provided with rollers. This saves space and allows for the storage of more battery pack contouring tools 7. The first roller conveyor 3 and the second roller conveyor 8 are both linear conveying devices, but they have different tracks: one track is on the outside for conveying the skid 1, and the other track is on the inside for conveying the tooling carriage 6.

[0028] For a vehicle body 2 that passes the sealing test, the lifting component 13 of the side-mounted machine 5 lifts the vehicle body 2 to a certain height. The tooling slide 6 positioner opens the clamping arm via a cylinder, and the tooling slide 6 returns to its initial position from the second roller conveyor 8. The lifting component 13 of the side-mounted machine 5 then places the vehicle body 2 onto the skid 1. The skid positioner 4 opens the clamping arm via a motor in reverse, and the skid 1 carries the vehicle body 2 away from this station to the next process. For a vehicle body 2 that fails the sealing test, if it is a serious sealing failure, the above actions are repeated to move it to the corresponding station for glue application or other processes to achieve the required sealing. If it is a minor sealing failure, glue application or other processes can be performed at this station to achieve the required sealing. After sealing the chassis of the vehicle body 2, the sealing test is repeated until it passes the test and proceeds to the next process.

[0029] Preferably, this device also includes an electronic control unit, which is electrically connected to the side-mounted machine 5, the first roller conveyor 3, the second roller conveyor 8, the skid positioner 4, the carriage positioner 11, the detection switch 17, and the locking cylinder 141. Through the control of the electronic control unit, the movement of the skid 1, the lifting and lowering of the vehicle body 2, the transfer of the tooling carriage 6, and the starting and stopping of the skid positioner 4, carriage positioner 11, detection switch 17, and locking cylinder 141 are all automatically controlled. The operator only needs to connect the airtightness tester 12 to the pipe connector 71 at the front end of the battery pack contouring tooling 7; personnel do not need to move heavy objects, resulting in low labor intensity and high efficiency.

[0030] The advantages of this embodiment are that the device has a compact structure, saves space, has good compatibility, and is flexible. The lifting components 13 on both sides of the side-mounted machine 5 are driven by the same motor to ensure the synchronicity of the lifting process of the vehicle body 2. The lifting components 13 extend and retract to the corresponding positions according to different vehicle models under the action of the cylinder, which has good compatibility. The battery pack contouring tooling 7 and the carriage 6 are adapted to cooperate with more vehicle models. The battery pack contouring tooling 7 is surrounded by hook and pin locking devices. Without interfering with the vehicle body 2, each hook and pin locking device adopts a left and right (or front and rear) double locking hook 16 structure to lock the vehicle firmly. Moreover, the large stroke locking hook 16 can meet the situation where the center of gravity of the vehicle body 2 is rearward and the front of the vehicle is tilted. The hoisting equipment 9 realizes the switching between multiple battery pack contouring tooling 7s between the carriage and the material rack. The nested tooling material rack 10 can meet the storage of multiple battery pack contouring tooling 7s and save space. In summary, this device can meet the airtightness testing needs of multiple vehicle models by docking the battery pack contouring fixture 7 with the vehicle body 2. The lifting of the vehicle body 2 and the transfer of the battery pack contouring fixture 7 are all completed by mechanical equipment, which reduces labor intensity and increases efficiency.

[0031] The parts of this utility model not described in detail are prior art; for those skilled in the art, the technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-vehicle chassis sealing test device, comprising a hoisting device (9), a linear conveying device, and an airtightness tester (12) disposed on one side of the linear conveying device; a skid (1) is connected to the linear conveying device for supporting the vehicle body (2) to be tested for sealing; characterized in that: It also includes a side-mounted lifting machine (5); the side-mounted lifting machine (5) includes lifting devices (51) arranged on both sides of the linear conveyor, each of the lifting devices (51) including a pair of retractable lifting components (13); The linear conveyor is also connected to a tooling slide (6), which allows the tooling slide (6) to move horizontally along the linear conveyor. The battery pack contouring tool (7) can be placed on the upper end of the tooling slide (6), and the two are fixed by a pin structure. There are multiple battery pack contouring tools (7), which are stored in the tooling storage area on the side of the linear conveyor. Each battery pack contouring tool (7) corresponds to a vehicle model, and each of its four corners is provided with a double hook locking device (14). The double hook locking device (14) is used to connect the battery pack contouring tool (7) to the vehicle body (2) to form a complete vehicle body. A pipe connector (71) is provided at the front end of the battery pack contouring tool (7), which is used to connect the air tightness tester (12) through a hose. The hoisting equipment (9) is located above the tooling storage area and is used for the transfer of the battery pack conformal tooling (7).

2. The multi-vehicle chassis sealing test device according to claim 1, characterized in that: The linear conveying equipment includes two stations: a testing station (61) and a replacement station (62). The testing station (61) is used to perform a sealing test on the complete vehicle body on the tooling carriage (6). The replacement station (62) is used to replace the battery pack conformal tooling (7) on the tooling carriage (6) using the hoisting equipment (9).

3. The multi-vehicle chassis sealing test device according to claim 2, characterized in that: The linear conveying equipment includes a first roller conveyor (3) and a second roller conveyor (8), which are used to convey the skid (1) to the inspection station (61) and to convey the tooling carriage (6) of the changing station (62) to the inspection station (61), respectively.

4. The multi-vehicle chassis sealing test device according to claim 3, characterized in that: It also includes a skid positioner (4) and a carriage positioner (11), which are used to fix the skid (1) and the tooling carriage (6) at the inspection station (61), respectively.

5. The multi-vehicle chassis sealing test device according to claim 4, characterized in that: The tooling slide (6) is equipped with a detection switch (17) for detecting whether the vehicle model of the battery pack contour tooling (7) placed on the tooling slide (6) corresponds to the vehicle model of the vehicle body (2).

6. The multi-vehicle chassis sealing test device according to claim 5, characterized in that: The upper part of the double hook locking device (14) is provided with a positioning pin (15) with a guide head. On both sides of the positioning pin (15) are rotatable locking hooks (16). The lower end of the locking hook (16) is connected to the locking cylinder (141) through a linkage mechanism, and is used to drive the pair of locking hooks (16) to rotate by the extension and retraction of the locking cylinder (141).

7. The multi-vehicle chassis sealing test device according to claim 6, characterized in that: It also includes an electrical control unit, which is connected to the circuits of the side top machine (5), the first roller conveyor (3), the second roller conveyor (8), the skid positioner (4), the carriage positioner (11), the detection switch (17), and the locking cylinder (141).

8. The multi-vehicle chassis sealing test device according to claim 1, characterized in that: The hoisting equipment (9) includes a steel frame, which covers the linear conveying equipment. An electric hoist assembly that can move in both directions is provided on the upper part of the steel frame for hoisting the battery pack contour tooling (7) between the tooling carriage (6) and the tooling storage area.

9. The multi-vehicle chassis sealing test device according to claim 1, characterized in that: A tool rack (10) is provided in the tool storage area; the battery pack conforming tool (7) is placed on the tool rack (10).

10. The multi-vehicle chassis sealing test device according to claim 9, characterized in that: The tooling rack (10) includes a fixed frame (101) and a movable frame (102), on which the battery pack conforming tool (7) is placed; the fixed frame (101) covers the movable frame (102), and the bottom of the movable frame (102) is provided with rollers.

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