CN114838663B

CN114838663B - Vehicle-mounted fuel cell stack detection device

Info

Publication number: CN114838663B
Application number: CN202210776351.6A
Authority: CN
Inventors: 于晓淼; 曲少杰; 薛斯文
Original assignee: Yantai Luji Automobile Technology Co ltd
Current assignee: Yantai Luji Automobile Technology Co ltd
Priority date: 2022-07-04
Filing date: 2022-07-04
Publication date: 2022-09-09
Anticipated expiration: 2042-07-04
Also published as: CN114838663A

Abstract

The invention discloses a vehicle-mounted fuel cell stack detection device, which relates to the technical field of detection equipment and comprises a workbench rotating disc, wherein detection mechanisms are arranged beside the rotating disc and comprise a lifting track, a lifting slide block is arranged on one side of the lifting track, a rotating assembly and a detection assembly are arranged on the lifting slide block, the rotating assembly comprises a rotating motor and a rotating block, the rotating assembly is arranged on the lifting slide block, the rotating block is arranged on the rotating motor, extension rods are arranged on two sides of the rotating block, two detection assemblies are arranged, the two detection assemblies are correspondingly arranged on the two extension rods one by one, a bidirectional screw rod and two clamping mechanisms are arranged on the rotating disc, the two clamping mechanisms are symmetrically arranged on the two bidirectional screw rods, and the two clamping mechanisms are driven by the bidirectional screw rod to move in opposite directions or back to back. Compared with the prior art, the invention can effectively improve the detection efficiency of the fuel cell and can improve the detection precision.

Description

Vehicle-mounted fuel cell stack detection device

Technical Field

The invention relates to the technical field of detection equipment, in particular to a vehicle-mounted fuel cell stack detection device.

Background

In order to ensure the performance of the fuel cell, the distance between the adjacent cathode/anode plates should be the same after being compressed, and the edges of all the cathode/anode plates should be in the same plane, so that the condition of dislocation of the cathode/anode plate stack is avoided. Therefore, after the fuel cell is assembled, the extending distance of the edge of the fuel cell and the distance between the adjacent cathode/anode plates need to be detected to ensure the assembling state of the fuel cell.

Chinese patent publication No. CN113624139A discloses a fuel cell stack detection device and a detection method thereof, including: a laser measuring device; the laser measuring device is fixed on a Z-axis moving device of the three-axis moving mechanism; a rotating tool is arranged in the motion range of the three-axis motion mechanism; detecting the fuel cell stack by a laser measuring device while the rotary tool moves in cooperation with the three-axis movement mechanism; the method solves the problem that in the prior art, the product is detected by using three coordinates by adopting a traditional detection method. Therefore, the efficiency is low, the manual operation error is large, the operation is limited by the fixed axial position of the three coordinates, and the assembly size detection of the fuel cell stack with the complex shape cannot be carried out, so that the detection requirement cannot be met. This detection method has been gradually unable to meet the technical problem of the rapid development of fuel cells.

However, the device of the above patent has the following disadvantages when in use: 1. it is loaded down with trivial details to use, the device need rotate 90 degrees at every turn and detect fuel cell's edge from the corner in proper order, but in fact, every corner can directly detect fuel cell's both sides face, in addition, rectangle fuel cell's length and width are inequality mostly, rotate 90 degrees at every turn after, all need readjust laser detection device's position, however the position of laser detection device is the same with the position of laser detection device when rotating the detection after 180 degrees again during first detection, laser detection device's position still need be through twice regulation in the middle of this, make the detection step very loaded down with trivial details. 2. The clamping device is not fully functional, and the device in the above patent only clamps the fuel cell from both sides by two clamping blocks as seen from the drawing, however, the height of the fuel cell is generally high, so that the clamping manner is very unstable.

Disclosure of Invention

The invention aims to provide a vehicle-mounted fuel cell stack detection device, which aims to solve the technical problems of complex fuel cell detection steps and unstable clamping in the prior art.

The invention provides a vehicle-mounted fuel cell stack detection device, which comprises a workbench and a rotating disk rotatably arranged on the workbench, wherein a detection mechanism is arranged beside the rotating disk, the detection mechanism comprises a lifting track vertically arranged on the workbench, a lifting slide block driven by the lifting track to lift is arranged on one side of the lifting track close to the rotating disk, a rotating assembly and a detection assembly are arranged on the lifting slide block, the rotating assembly comprises a rotating motor and a rotating block, the rotating assembly is arranged on the lifting slide block, the rotating block is arranged on the rotating motor, extension rods are arranged on two sides of the rotating block, the length directions of the two extension rods are mutually vertical, the detection assemblies are provided in two numbers, the two detection assemblies are correspondingly arranged on the two extension rods one by one, a bidirectional screw rod and two clamping mechanisms are arranged on the rotating disk, the two clamping mechanisms are symmetrically arranged on the two bidirectional screw rods and driven by the bidirectional screw rods to move in opposite directions or back to back.

Further, every the determine module all includes regulation track, adjusting block, electric putter and laser detection head, the adjusting track sets up on the extension rod along the length direction of extension rod, adjusting block sets up on adjusting the track, electric putter sets up on adjusting block and the length direction of electric putter is perpendicular with adjusting orbital length direction, the laser detection head sets up on electric putter's output.

Further, electric putter and laser detection head set up in the lower part of adjusting the slider just electric putter and laser detection head are located the below of extension rod.

Further, every fixture all includes grip block, first centre gripping subassembly, second centre gripping subassembly and intercommunication pipeline, the lower part and the two-way lead screw threaded connection of grip block, first centre gripping subassembly and second centre gripping subassembly all set up and cooperate through the intercommunication pipeline between the upper portion of grip block and first centre gripping subassembly and second centre gripping subassembly.

Further, first centre gripping subassembly includes first piston chamber, first supporting rod and first spring, first piston chamber transversely sets up the upper portion at the grip block, first piston intracavity sliding connection has first activity to fill in, one section and the first activity of first supporting rod fill in fixed connection, first spring setting is between first piston chamber and first activity stopper.

Further, second centre gripping subassembly is including the slip chamber, there is the second supporting rod in the slip intracavity along vertical direction sliding connection, the lower extreme of second supporting rod is equipped with and is used for the second spring with the second supporting rod jack-up that makes progress, the upper end in slip chamber is equipped with a piston section of thick bamboo, be equipped with in the piston section of thick bamboo rather than sliding fit's second activity stopper, the lower extreme that the second activity was filled in is equipped with the connecting rod, the lower extreme of connecting rod and the upper end fixed connection of second supporting rod, through the intercommunication pipeline intercommunication between a piston section of thick bamboo and the first piston chamber, the intercommunication space intussuseption between first activity stopper and the second activity stopper is filled with hydraulic oil.

Furthermore, the end of the first clamping rod, which is positioned outside the first piston cavity, and the lower end of the second clamping rod are both provided with elastic gaskets.

Further, the lower extreme of rotary disk is equipped with driven gear, the side of rotary disk is equipped with driving motor, be equipped with drive gear on driving motor's the output, drive gear with driven gear meshes.

Further, the driving motor is arranged at the upper end of the workbench.

Compared with the prior art, the invention has the beneficial effects that:

(1) according to the invention, two side faces of one included angle of the fuel cell are detected through the two detection assemblies, then the rotating disk directly rotates for 180 degrees, the two detection assemblies simultaneously detect two side faces of the other included angle, and the detection of the four sides of the fuel cell can be completed through two times of work.

(2) The invention has multiple optional detection modes and strong applicability.

(3) The invention can carry out two detections on each side face of the fuel cell, and the two detections are respectively carried out from the two ends of the side face, so that the detection results can be better compared, whether the data of the side face are different or not can be rapidly analyzed, and whether the stacking of the bipolar plates in the fuel cell is qualified or not can be judged.

(4) Can enough follow both sides through two first clamping rods with the fuel cell centre gripping, can also follow the lower terminal plate of top centre gripping fuel cell through two second clamping rods, improve the stability of fuel cell centre gripping, avoid the unexpected condition to take place to cause the condition that fuel cell emptys to take place.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a front view of the present invention;

FIG. 2 is a schematic perspective view of the present invention;

FIG. 3 is an enlarged view at A in FIG. 2;

FIG. 4 is a top view of the clamping mechanism of the present invention;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;

fig. 6 is an enlarged view at C in fig. 5.

Reference numerals:

1. a work table; 2. rotating the disc; 3. a detection mechanism; 31. a lifting rail; 32. a lifting slide block; 33. a rotating assembly; 331. rotating the motor; 332. rotating the block; 333. an extension rod; 34. a detection component; 341. adjusting the track; 342. adjusting the sliding block; 343. an electric push rod; 344. a laser detection head; 4. a bidirectional screw rod; 5. a clamping mechanism; 51. a clamping block; 52. a first clamping assembly; 521. a first piston chamber; 522. a first clamping rod; 523. a first spring; 524. a first movable plug; 53. a second clamping assembly; 531. a sliding cavity; 532. a second clamping rod; 533. a second spring; 534. a piston cylinder; 535. a second movable plug; 536. a connecting rod; 54. a communicating pipe; 6. an elastic pad; 7. a driven gear; 8. a drive motor; 9. the gears are driven.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.

The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 6, an embodiment of the present invention provides a vehicle-mounted fuel cell stack detection apparatus, including a workbench 1 and a rotating disk 2 rotatably disposed on the workbench 1, a detection mechanism 3 is disposed beside the rotating disk 2, the detection mechanism 3 includes a lifting rail 31 vertically disposed on the workbench 1, a lifting slider 32 driven by the lifting rail 31 to lift is disposed on one side of the lifting rail 31 close to the rotating disk 2, the lifting rail 31 has a driving force capable of providing a power to drive the lifting slider 32 to move, which is the prior art, and detailed description of the specific structure of the lifting rail 31 is omitted in the present invention, the lifting slider 32 is provided with a rotating assembly 33 and a detection assembly 34, the rotating assembly 33 includes a rotating motor 331 and a rotating block 332, the rotating assembly 33 is mounted on the lifting slider 32, and the rotating block 332 is disposed on the rotating motor 331, the two sides of the rotating block 332 are respectively provided with an extending rod 333, the length directions of the two extending rods 333 are perpendicular to each other, two detection assemblies 34 are arranged, the two detection assemblies 34 are correspondingly arranged on the two extending rods 333 one by one, the rotating disc 2 is provided with a bidirectional screw rod 4 and two clamping mechanisms 5, the two clamping mechanisms 5 are symmetrically arranged on the two bidirectional screw rods 4, and the two clamping mechanisms 5 are driven by the bidirectional screw rod 4 to move in the opposite direction or in the opposite direction; when the fuel cell detection device works, a fuel cell to be detected is placed on the rotating disc 2, the two clamping mechanisms 5 are driven by the lead screw sliding table to clamp the fuel cell, then the lifting rail 31 works to drive the lifting slide block 32 to move, the two detection assemblies 34 move to a certain height, the detection assemblies 34 work to detect two side faces of one included angle of the fuel cell, then the rotating disc 2 directly rotates 180 degrees, the two detection assemblies 34 simultaneously detect two side faces of the other included angle, and the detection of four sides of the fuel cell can be completed through two times of work.

In addition to the above embodiment, the present invention further provides a detecting method, which includes the steps of detecting two side surfaces of a first included angle of a fuel cell through two detecting assemblies 34, rotating the fuel cell 90 degrees, rotating a rotating motor 331 180 degrees, driving the two detecting assemblies 34 to rotate 180 degrees, changing positions of the two detecting assemblies, detecting two side surfaces of a second included angle of the fuel cell, and repeating the above operations to detect two side surfaces of a third included angle and a fourth included angle of the fuel cell in sequence, so as to detect the fuel cell, and the advantage of detecting the fuel cell is that: first, every side of fuel cell all can carry out twice detection, and detect twice and detect from the both ends of this side respectively, can be better compare the testing result, whether the data of this side of quick analysis exist the difference and then judge whether the pile up of bipolar plate is qualified among the fuel cell, second, twice detection of every side of fuel cell all is accomplished by same detection component 34, is convenient for classify the contrast with the data that detect.

Specifically, each of the detecting assemblies 34 includes an adjusting track 341, an adjusting slider 342, an electric push rod 343 and a laser detecting head 344, the adjusting track 341 is disposed on the extending rod 333 along the length direction of the extending rod 333, the adjusting slider 342 is disposed on the adjusting track 341, the electric push rod 343 is disposed on the adjusting slider 342 and the length direction of the electric push rod 343 is perpendicular to the length direction of the adjusting track 341, the laser detecting head 344 is disposed on the output end of the electric push rod 343, wherein the laser detecting head 344 is a prior art; the position of the laser detection head 344 is adjusted through the adjusting track 341, so that the laser detection head 344 can detect the condition of the edge of the fuel cell, and the distance between the laser detection head 344 and the fuel cell can be adjusted through the electric push rod 343, so that the detection data is more accurate.

Specifically, the electric push rod 343 and the laser detection head 344 are disposed at the lower portion of the adjustment slider 342 and the electric push rod 343 and the laser detection head 344 are located below the extension rod 333, so that the laser detection head 344 is conveniently moved to the lowest point when the bottom of the fuel cell is detected.

Specifically, each clamping mechanism 5 comprises a clamping block 51, a first clamping assembly 52, a second clamping assembly 53 and a communication pipeline 54, the lower portion of the clamping block 51 is in threaded connection with the bidirectional screw rod 4, the first clamping assembly 52 and the second clamping assembly 53 are arranged on the upper portion of the clamping block 51, and the first clamping assembly 52 and the second clamping assembly 53 are matched through the communication pipeline 54.

Specifically, the first clamping assembly 52 includes a first piston chamber 521, a first clamping rod 522 and a first spring 523, the first piston chamber 521 is transversely disposed at an upper portion of the clamping block 51, a first movable plug 524 is slidably connected in the first piston chamber 521, a section of the first clamping rod 522 is fixedly connected with the first movable plug 524, and the first spring 523 is disposed between the first piston chamber 521 and the first movable plug 524.

Specifically, the second clamping assembly 53 includes a sliding cavity 531, a second clamping rod 532 is slidably connected in the sliding cavity 531 along the vertical direction, a second spring 533 for jacking up the second clamping rod 532 is arranged at the lower end of the second clamping rod 532, a piston cylinder 534 is arranged at the upper end of the sliding cavity 531, a second movable plug 535 in sliding fit with the piston cylinder 534 is arranged in the piston cylinder 534, a connecting rod 536 is arranged at the lower end of the second movable plug 535, the lower end of the connecting rod 536 is fixedly connected with the upper end of the second clamping rod 532, the piston cylinder 534 is communicated with the first piston cavity 521 through a communicating pipeline 54, and a communicating space between the first movable plug 524 and the second movable plug 535 is filled with hydraulic oil.

When the clamping mechanism works, the lead screw sliding table works to drive the two clamping blocks 51 to move oppositely, when the clamping mechanism approaches a fuel cell, the first clamping rod 522 firstly props against the edge of the lower end plate of the fuel cell, then the clamping block 51 continuously moves to enable the first clamping rod 522 to move towards the first piston cavity 521 and push the first movable plug 524 to move towards the first piston cavity 521, and meanwhile, hydraulic oil is extruded into the piston cylinder 534 through the communication pipeline 54, so that the second movable plug 535 in the piston cylinder 534 moves downwards, and then the second clamping rod 532 is pushed to move downwards through the connecting rod 536, when the lower end face of the second clamping rod 532 is close to the upper end of the lower end plate of the fuel cell, the clamping mechanism 5 finishes clamping work, at the moment, the fuel cell can be clamped from two sides through the two first clamping rods 522, and the lower end plate of the fuel cell can be clamped from the upper side through the two second clamping rods 532, the stability of fuel cell centre gripping has been improved, and the condition that the accident takes place to cause fuel cell to topple over takes place.

When the clamping state is released, the two clamping blocks 51 are driven to move back to back by the work of the screw rod sliding table, the first clamping rod 522 and the second clamping rod 532 can be recovered left and right under the elastic force of the first spring 523 and the second spring 533, the first clamping rod 522 extends to the longest outside of the first piston cavity 521, and the second clamping rod 532 slides upwards to the highest position along the sliding cavity 531.

Specifically, the end of the first clamping rod 522 located outside the first piston chamber 521 and the lower end of the second clamping rod 532 are both provided with the elastic washer 6. The elastic washer 6 can play a role in buffering, and avoids the damage to the equipment caused by sudden stop due to no buffering of the first clamping rod 522 and the second clamping rod 532 when the fuel cell is touched.

Specifically, the lower extreme of rotary disk 2 is equipped with driven gear 7, the side of rotary disk 2 is equipped with driving motor 8, be equipped with drive gear 9 on driving motor 8's the output, drive gear 9 with driven gear 7 meshing, the during operation drives drive gear 9 through 8 work of driving motor and rotates, and drive gear 9 drives driven gear 7 and rotates, and then drives rotary disk 2 and rotates, adjusts fuel cell's detection angle.

Specifically, the driving motor 8 is provided at the upper end of the table 1. In addition to the driving motor 8 being provided at the upper end of the table 1, the driving motor 8 can be embedded in the table 1, but the installation and maintenance work can be performed more easily by providing the driving motor 8 at the upper end of the table 1 than by providing the driving motor 8 at the upper end of the table.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the spirit of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A vehicle-mounted fuel cell stack detection device comprises a workbench (1) and a rotary disk (2) rotatably arranged on the workbench (1), and is characterized in that: the side of rotary disk (2) is equipped with detection mechanism (3), detection mechanism (3) are including vertical lift track (31) that sets up on workstation (1), one side that lift track (31) are close to rotary disk (2) is equipped with and carries out lift slider (32) that go up and down by lift track (31) drive, be equipped with runner assembly (33) and determine module (34) on lift slider (32), runner assembly (33) are including rotating motor (331) and turning block (332), runner assembly (33) is installed on lift slider (32), turning block (332) set up on rotating motor (331), the both sides of turning block (332) all are equipped with extension rod (333), two the length direction mutually perpendicular of extension rod (333), determine module (34) are provided with two, two determine module (34) one-to-one sets up on two extension rod (333), the rotary disc (2) is provided with a bidirectional screw rod (4) and two clamping mechanisms (5), the two clamping mechanisms (5) are symmetrically arranged on the two bidirectional screw rods (4), the two clamping mechanisms (5) are driven by the bidirectional screw rod (4) to move in the opposite direction or in the opposite direction, each clamping mechanism (5) comprises a clamping block (51), a first clamping assembly (52), a second clamping assembly (53) and a communicating pipeline (54), the lower portion of the clamping block (51) is in threaded connection with the bidirectional screw rod (4), the first clamping assembly (52) and the second clamping assembly (53) are arranged on the upper portion of the clamping block (51), the first clamping assembly (52) is matched with the second clamping assembly (53) through the communicating pipeline (54), the first clamping assembly (52) comprises a first piston cavity (521), a first clamping rod (522) and a first spring (523), the first piston cavity (521) is transversely arranged at the upper part of the clamping block (51), a first movable plug (524) is connected in the first piston cavity (521) in a sliding manner, one section of the first clamping rod (522) is fixedly connected with the first movable plug (524), the first spring (523) is arranged between the first piston cavity (521) and the first movable plug (524), the second clamping assembly (53) comprises a sliding cavity (531), a second clamping rod (532) is connected in the sliding cavity (531) in a sliding manner along the vertical direction, a second spring (533) used for jacking the second clamping rod (532) upwards is arranged at the lower end of the second clamping rod (532), a piston cylinder (534) is arranged at the upper end of the sliding cavity (531), a second movable plug (535) in sliding fit with the piston cylinder (534) is arranged in the piston cylinder (534), and a connecting rod (536) is arranged at the lower end of the second movable plug (535), the lower extreme of connecting rod (536) and the upper end fixed connection of second clamping rod (532), communicate through communicating pipe (54) between piston cylinder (534) and first piston chamber (521), the intercommunication space intussuseption between first movable stopper (524) and the second movable stopper (535) is filled with hydraulic oil, the one end that first clamping rod (522) are located first piston chamber (521) outside and the lower extreme of second clamping rod (532) all are equipped with resilient pads (6).

2. The on-vehicle fuel cell stack detection device according to claim 1, characterized in that: each detection assembly (34) comprises an adjusting track (341), an adjusting slider (342), an electric push rod (343) and a laser detection head (344), wherein the adjusting track (341) is arranged on the extending rod (333) along the length direction of the extending rod (333), the adjusting slider (342) is arranged on the adjusting track (341), the electric push rod (343) is arranged on the adjusting slider (342), the length direction of the electric push rod (343) is perpendicular to the length direction of the adjusting track (341), and the laser detection head (344) is arranged on the output end of the electric push rod (343).

3. The on-vehicle fuel cell stack detection device according to claim 2, characterized in that: the electric push rod (343) and the laser detection head (344) are arranged at the lower part of the adjusting slide block (342), and the electric push rod (343) and the laser detection head (344) are positioned below the extension rod (333).

4. The vehicle-mounted fuel cell stack detection device according to claim 1, characterized in that: the lower extreme of rotary disk (2) is equipped with driven gear (7), the side of rotary disk (2) is equipped with driving motor (8), be equipped with drive gear (9) on the output of driving motor (8), drive gear (9) with driven gear (7) meshing.

5. The vehicle-mounted fuel cell stack detection device according to claim 4, characterized in that: the driving motor (8) is arranged at the upper end of the workbench (1).