CN117817286A - Motor spray pipe production line and production process for new energy automobile - Google Patents

Abstract

The application discloses a motor spray pipe production line and a production process for a new energy automobile, wherein the production line comprises an automatic welding station, a plugging station and a grabbing device; the grabbing device is suitable for grabbing the workpiece and moving between stations; the automatic welding station is used for assembling parts forming the motor spray pipe, and performing omnidirectional welding by overturning the assembled parts so as to obtain a front blank of the motor spray pipe; the plugging station is suitable for 180-degree transposition of the blank, and further performs plug sealing on corresponding ports on two sides of the blank. The beneficial effects of this application: the working procedures are concentrated and the grabbing device is used for switching the working procedures, so that invalid working hours can be reduced, and the production efficiency of the motor spray pipe is improved. And when carrying out welding process and shutoff process in the course of working, can realize the change of blank's position through mechanical structure, and then when reducing intensity of labour, can also further improve production efficiency.

Description

Motor spray pipe production line and production process for new energy automobile

Technical Field

The application relates to the technical field of new energy automobiles, in particular to a motor spray pipe production line and a production process for a new energy automobile.

Background

Most new energy automobiles provide kinetic energy for a motor through a battery to drive the motor to run, so that the vehicles are driven to run; therefore, the performance of the motor can directly influence the overall quality of the new energy automobile. A significant factor affecting motor performance is the heat dissipation of the motor. In order to prevent the motor from overheating, a spray pipe is generally arranged on the outer side of the motor, and the purpose of cooling is achieved by spraying liquid on the surface of the motor.

Fig. 1 is a schematic diagram of a conventional motor shower 100 for a new energy automobile. The specific structure of the motor spray pipe 100 mainly comprises a longitudinal pipe 101, a first transverse pipe 102, a second transverse pipe 103 and a pair of third transverse pipes 104. The longitudinal tube 101 is arc-shaped corresponding to the outline of the motor, the first transverse tube 102 and the second transverse tube 103 are welded at two ends of the longitudinal tube 101 through the middle part, and the two third transverse tubes 104 are welded at two sides of the middle part of the longitudinal tube 101 in a staggered mode. Wherein, one end of the second transverse tube 103, the third transverse tube 104 and the first transverse tube 102 is plugged by a plug 106; a mounting plate 105 is welded on one side of the second transverse pipe 103; the side parts of the longitudinal pipe 101, the first transverse pipe 102, the second transverse pipe 103 and the third transverse pipe 104, which face the motor, are provided with spray ports.

The motor spray pipe mainly comprises the following steps of: welding, plugging, copper paste dispensing, bending and detecting. The existing production line is generally carried out separately when carrying out the working procedures, and most of the working procedures need manual operation, so that the production efficiency of the motor spray pipe is relatively low. Therefore, a high-automation motor spray pipe production line is urgently needed.

Disclosure of Invention

One of the objects of the present application is to provide a motor spray pipe production line for a new energy automobile, which can solve at least one of the above-mentioned drawbacks in the prior art.

Another object of the present application is to provide a process for producing a motor spray pipe for a new energy automobile, which can solve at least one of the above-mentioned drawbacks in the related art.

In order to achieve at least one of the above objects, the technical scheme adopted in the application is as follows: a motor spray pipe production line for new energy automobiles comprises an automatic welding station, a plugging station and a grabbing device; the grabbing device is suitable for grabbing a workpiece and moving between stations; the automatic welding station is used for assembling parts forming the motor spray pipe, and performing omnidirectional welding by overturning the assembled parts so as to obtain a front blank of the motor spray pipe; the plugging station is suitable for 180-degree transposition of the blank, and further performs plug sealing on corresponding ports on two sides of the blank.

Preferably, the automatic welding station comprises a feeding station, a welding station, a discharging station and a rotating seat which are arranged in turn in the circumferential direction; a plurality of first clamps are arranged on the rotating seat at equal intervals along the circumferential direction, and the rotating seat is suitable for driving the first clamps to sequentially pass through a feeding station, a welding station and a discharging station through rotation; the parts are assembled and clamped at the feeding station; the assembled parts are welded twice in the welding station through overturning, so that a required blank is obtained; and the blank is grabbed and baited by the grabbing device at the baiting station.

Preferably, the first clamp comprises a supporting block, two groups of clamping assemblies and a turnover assembly; the two groups of clamping assemblies are respectively arranged at two sides of the supporting block, and then the clamping assemblies and the supporting block are mutually matched to assemble and clamp parts; when the first clamp drives the assembled and clamped parts to move to the welding station, the welding device arranged above the welding station firstly welds the parts for the first time; the second welding process includes a first action and a second action; wherein, the first action: the clamping assembly is retracted to be separated from the end part of the blank, and the supporting blocks are unfolded and separated under the driving of the clamping assembly so as to release the rotation restriction of the blank; a second action: the overturning assembly drives the blank to overturn 180 degrees around the longitudinal pipe, and then the clamping assembly clamps the overturned blank again to carry out secondary welding.

Preferably, the supporting block comprises a fixed block, a pair of movable blocks and a traction block; the fixed block is fixedly arranged, the movable block is slidably arranged on two opposite sides of the fixed block, the top of the movable block is used for supporting a longitudinal pipe of a blank, and the movable block is matched with the fixed block to form a supporting area for supporting a third transverse pipe; the traction block is connected with the clamping assembly and is matched with the two movable blocks respectively, and when the clamping assembly is retracted, the traction block is suitable for driving the two movable blocks to slide reversely along the axial direction of the longitudinal tube, so that the supporting area loses the support of the third transverse tube to form an avoidance area.

Preferably, the clamping assembly comprises a first mounting seat, a sliding block and a first displacement device; the first mounting seat is fixedly arranged, the sliding block and the first mounting seat are horizontally and elastically slidably mounted, and the sliding block is suitable for supporting the end part of the blank through the top; the first displacement device is fixedly arranged on the first mounting seat, and the output end of the first displacement device is used for clamping the end part of the blank and is matched with the sliding block; and when the output end of the first displacement device is retracted to the limit position, the sliding block is suitable for moving away from the blank in a direction away from the blank by overcoming the elastic force under the driving of the first displacement device until the end part of the blank is separated from the sliding block.

Preferably, the overturning assembly comprises a second mounting seat, a second displacement device and clamping jaws; the second mounting seat is fixedly arranged, the clamping jaw is movably mounted on the second mounting seat through a connecting shaft, and the connecting shaft is overlapped with the axis of the longitudinal pipe of the blank; the connecting shaft is matched with the second mounting seat through a driving structure; the second displacement device is arranged on the second mounting seat and is in matched connection with the connecting shaft, and the connecting shaft is driven by the second displacement device to axially reciprocate; when the connecting shaft performs extending movement close to the blank, the connecting shaft is suitable for driving the blank to rotate 180 degrees around the longitudinal pipe through the clamping jaw under the driving of the driving structure; when the connecting shaft performs retracting movement away from the blank, the connecting shaft is suitable for driving the clamping jaw to translate under the driving of the driving structure so as to be separated from the blank.

Preferably, the driving structure comprises a driving groove arranged at the outer side of the connecting shaft and a driving block which is elastically and slidably arranged on the second mounting seat along the radial direction of the connecting shaft and is in sliding fit with the driving groove; the driving groove comprises a pair of first groove sections and a pair of second groove sections, the first groove sections extend axially and are arranged at intervals of 180 degrees along the circumferential direction, the first ends of the second groove sections are communicated with the first ends of one of the first groove sections, and the second ends of the second groove sections are communicated with the middle of the other first groove section; the depth of the first end of the first groove section is larger than that of the second groove section, and the depth of the second end of the second groove section is larger than that of the middle part of the first groove section; the drive block slides along the second slot segment from the second end of the first slot segment to the first end of the other first slot segment while the extension of the connecting shaft is performed; the drive block slides from the first end to the second end of the first slot segment upon retraction of the connecting shaft.

Preferably, the plugging station is provided with a plugging mechanism, and the plugging mechanism comprises a base, a displacement assembly, a second clamp, two groups of plug sealing devices and a positioning assembly; the base is provided with a first plugging station and a second plugging station which are adjacent to each other; the two groups of plug sealing devices are respectively arranged below the first plugging station and the second plugging station, and the positioning assembly is arranged above the base; the second clamp is slidably mounted on the base, and a blank to be plugged is suitable for being placed on the second clamp under the grabbing of the grabbing device according to the condition that one side end part of the blank is downward, and then is driven by the displacement assembly to move from the first plugging station to the second plugging station along with the second clamp; when the second clamp is positioned at the first plugging station, the positioning assembly is suitable for positioning the blank, and further the plug sealing device of the corresponding group seals the plug on one side end of the blank; in the process that the second clamp moves from the first plugging station to the second plugging station, the second clamp is suitable for being matched with the base through the guide structure to drive the blank to rotate 180 degrees around the longitudinal pipe, and then the plug at the end part of the other side of the blank is sealed at the second plugging station.

Preferably, the second clamp comprises a moving plate, a placing frame and a transposition assembly; the moving plate is slidably arranged on the base and is in matched connection with the displacement assembly; the movable plate is provided with a positioning hole vertically corresponding to the end part of the blank; the placing frame is vertically and elastically installed on the moving plate in a sliding manner, a blank to be plugged is placed on the placing frame, and then when plugging of the plug is carried out, the positioning assembly is suitable for extruding the end part of the blank, which moves downwards to one side, to downwards pass through the positioning hole; the transposition assembly is arranged on one side of the moving plate and matched with the base, and when the moving plate is driven by the displacement assembly to move from the first plugging station to the second plugging station, the transposition assembly is suitable for driving the blank to rotate 180 degrees around the longitudinal pipe.

Preferably, a guide plate with an arc-shaped section is fixed on the side part of the base, a pair of inclined third groove sections are arranged on the guide plate at intervals along the horizontal direction, the two third groove sections are arranged in a staggered manner in the circumferential direction, and the two third groove sections are communicated through a horizontal fourth groove section; the positioning assembly comprises a plurality of positioning blocks, wherein the positioning blocks are suitable for being corresponding to the end positions of the blank, and the positioning assembly is suitable for being extruded with the non-plugging end of the blank through vertical movement of the positioning blocks; the transposition assembly comprises a first clamping plate, a second clamping plate, a gear shaft and a gear; the gear shaft is rotatably arranged at the top of a third mounting seat arranged at one side of the movable plate, the first clamping plate is L-shaped and is in elastic spline connection with the gear shaft through a spline shaft, and the second clamping plate is elastically rotatably arranged at one side of the first clamping plate through a torsion spring so as to form a clamping area for clamping one side of a blank; the gear is rotatably arranged at the top of the third mounting seat through a rotating shaft and meshed with the gear shaft, the axis of the gear coincides with the circle center corresponding to the guide plate, and the diameter of the gear is larger than that of the gear shaft; the end part of the rotating shaft is provided with a guide rod which extends radially and is matched with the guide plate; when the moving plate moves from the first plugging station to the second plugging station, the guide rod drives the blank to rotate 90 degrees to the horizontal around the longitudinal pipe through sliding along the first third groove section, and then the guide rod slides along the fourth groove section to keep horizontal to pass over the positioning block until the guide rod slides along the second third groove section to drive the blank to rotate 90 degrees again around the longitudinal pipe.

A production process of a motor spray pipe production line for a new energy automobile comprises the following steps:

s100: the parts are placed in an automatic welding station in a manual or mechanical mode to be assembled and welded, and then a front blank of the motor spray pipe is obtained;

s200: moving the obtained blank to a plugging station, and plugging five ports of the blank;

s300: moving the blocked blank to a copper paste station, and further coating copper paste on the welding position of the blank;

s400: grabbing the coated blank to a bending station, and bending the longitudinal pipe of the blank to a required radian to obtain a required motor spray pipe product;

s500: and moving the obtained motor spray pipe product to a detection station for tightness detection and blanking.

Compared with the prior art, the beneficial effect of this application lies in:

compare traditional process separately processing's mode, this application can concentrate a plurality of processes together and snatch in succession through grabbing device, and then can improve the invalid man-hour that switches between the process in order to improve motor shower's production efficiency. And when carrying out welding process and shutoff process in the course of working, can realize the change of blank's position through mechanical structure, and then when reducing intensity of labour, can also further improve production efficiency.

Drawings

Fig. 1 is a schematic structural diagram of a conventional motor shower.

Fig. 2 is a schematic diagram of the structure of the parts constituting the motor spray pipe shown in fig. 1.

Fig. 3 is a schematic view of the structure of a blank obtained by welding the parts shown in fig. 2.

Fig. 4 is a schematic diagram of a process flow for producing a motor spray pipe according to the present invention.

Fig. 5 is a schematic view of a partial structure of an automatic welding station in the present invention.

Fig. 6 is a schematic structural view of a first fixture according to the present invention.

Fig. 7 is a schematic structural view of a support block according to the present invention.

Fig. 8 is a schematic view showing an exploded state of the support block in the present invention.

Fig. 9 is a schematic view showing the operation state of the support block when the blank is turned over.

Fig. 10 is a schematic structural view of a clamping assembly according to the present invention.

Fig. 11 is a schematic view showing an operation state of the clamping assembly when the blank is turned.

Fig. 12 is a schematic structural view of a flipping assembly according to the present invention.

Fig. 13 is a schematic view showing an expanded state of a driving groove provided on a surface of a coupling shaft in the present invention.

Fig. 14 is a schematic view showing a state that the blank is turned by the turning assembly according to the present invention.

Fig. 15 is a schematic structural view of a plugging mechanism in the present invention.

Fig. 16 is a schematic structural view of a guide plate in the present invention.

Fig. 17 is a schematic structural view of a second clamp according to the present invention.

FIG. 18 is a schematic diagram of a transpose assembly in accordance with the present invention.

Fig. 19 is a schematic view of the structure of the second clamp in a natural state at the first plugging station in the present invention.

Fig. 20 is a schematic view of a second clamp according to the present invention passing through a first third slot segment in a guide plate to drive a blank to rotate 90 °.

Fig. 21 is a schematic structural view of the second clamp in a positioned state after being turned 180 ° at the second plugging station.

In the figure: the motor spray pipe 100, the blank 110, the longitudinal pipe 101, the first transverse pipe 102, the second transverse pipe 103, the third transverse pipe 104, the mounting plate 105, the plug 106, the rotating seat 200, the feeding station 201, the welding station 202, the shape and position detecting station 203, the blanking station 204, the first clamp 3, the bottom plate 31, the supporting block 32, the supporting area 320, the fixed block 321, the limiting groove 3210, the baffle 3211, the movable block 322, the traction groove 3220, the limiting block 3221, the supporting groove 3222, the avoidance area 3223, the traction block 323, the traction part 3231, the clamping component 33, the first mounting seat 331, the sliding block 332, the supporting part 3321, the first displacement device 333, the clamping part 3331, the first spring 334, the turnover component 34, the second mounting seat 341 the driving block 3411, the second spring 3412, the second displacement device 342, the clamping jaw 343, the connecting shaft 344, the driving groove 345, the first groove section 3451, the second groove section 3452, the plugging mechanism 4, the base 41, the first plugging station 401, the second plugging station 402, the supporting frame 411, the guide plate 412, the plug sealing device 42, the positioning assembly 43, the pressing plate 431, the positioning block 432, the screw shaft 44, the second clamp 45, the moving plate 451, the positioning hole 4510, the third mounting seat 4511, the placing frame 452, the transposition assembly 453, the first clamping plate 4531, the second clamping plate 4532, the torsion spring 4533, the spline shaft 4534, the third spring 4535, the tooth shaft 4536, the gear 4537, the guide rod 4538, the third groove section 461, and the fourth groove section 462.

Detailed Description

The present application will be further described with reference to the specific embodiments, and it should be noted that, on the premise of no conflict, new embodiments may be formed by any combination of the embodiments or technical features described below.

In the description of the present application, it should be noted that, for the azimuth terms such as terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, it is merely for convenience of describing the present application and simplifying the description, and it is not to be construed as limiting the specific protection scope of the present application that the device or element referred to must have a specific azimuth configuration and operation, as indicated or implied.

It should be noted that the terms "first," "second," and the like in the description and in the claims of the present application are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.

The terms "comprises" and "comprising," along with any variations thereof, in the description and claims of the present application are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements that are expressly listed or inherent to such process, method, article, or apparatus.

One aspect of the present application provides a motor spray pipe production line for new energy vehicles, as shown in fig. 4 to 21, wherein one preferred embodiment includes an automatic welding station, a plugging station, a copper paste dispensing station, a bending station, a detection station and a gripping device. The grabbing device can grab the workpiece and move between stations; the automatic welding station may be used for assembling the parts forming the motor spray pipe 100, and performing omnidirectional welding by overturning the assembled parts, so as to obtain the front blank 110 of the motor spray pipe 100. The plugging station can perform 180-degree transposition on the blank 110, and further perform sealing on the plugs 106 on the corresponding ports on two sides of the blank 110 through twice plugging. The copper paste dispensing station may apply copper paste to the weld locations on the blank 110 to improve corrosion resistance of the weld locations. The bending station may bend the longitudinal tube 101 of the blank 110 to obtain the desired motor spray tube 100. The detection station may perform air tightness detection on the obtained motor shower 100 to detect the air tightness of the welding position.

For ease of understanding, the components that make up the motor spray header 100 will be described first. As shown in fig. 2, the components constituting the motor shower 100 include a vertical pipe 101, a first horizontal pipe 102, a second horizontal pipe 103, a pair of third horizontal pipes 104, and a mounting plate 105. When the vertical tube 101 is assembled, the length of the first transverse tube 102 is larger than that of the second transverse tube 103, and the distance between the two ends of the two third transverse tubes 104 after welding is equal to that of the second transverse tube 103. A mounting plate 105 is welded to one side of the second cross tube 103 for subsequent installation of the motor spray tube 100. At the automated welding station, the various parts described above may be placed in the position shown in fig. 3 and then welded to obtain the desired blank 110. The blank 110 has three ends formed in both of the longitudinal pipes 101; three ends of one side of the blank 110 are flush with each other, and of the three ends of the other side of the blank 110, the second transverse tube 103 and the third transverse tube 104 form ends flush, and the first transverse tube 102 forms ends longer than the remaining two ends. When the plug 106 is sealed at the plugging station, the remaining five ends are plugged by the plug 106 except for the longer end of the first transverse pipe 102 which is not required to be plugged. After the copper paste dispensing process is completed, the vertical tube 101 of the straight tube structure can be bent at a bending station according to the arc size required by the motor, so that the motor spray tube 100 shown in fig. 1 can be obtained.

It should be noted that the conventional production process needs to separately perform the above-mentioned automatic welding process, plugging process, copper paste dispensing process, bending process and inspection process, which results in a long time for switching between the processes, thereby reducing the production efficiency. In this embodiment, the gripping device is provided to transfer the blank 110 between the stations, so that each process can be concentrated and handled, and the production efficiency of the motor spray pipe 100 is improved by direct gripping of the gripping device.

Meanwhile, the structural shape of the blank 110 is considered when welding the blank 110 and plugging the plug 106; if good welding of the blank 110 is desired and end closure is to be accomplished, the blank 110 needs to be turned over. Compared with the traditional manual overturning mode, the overturning device adopts the overturning of a mechanical structure, can reduce labor intensity and provide production efficiency, and can improve the automation degree of the whole production line.

It will be appreciated that the specific structure of the gripping device is well known to those skilled in the art, and that a common gripping device is a gripping robot, and a mechanical gripping manipulator is used to perform the gripping movement of the blank 110. Meanwhile, the device structures required by the copper paste dispensing station, the bending station and the detection station are in the prior art, and the positions of the copper paste dispensing station, the bending station and the detection station are rearranged, so that the normal use of the related devices is not affected.

In this embodiment, as shown in fig. 5, the automatic welding station includes a feeding station 201, a welding station 202, a shape and position detecting station 203, a discharging station 204, and a rotating seat 200 that are rotatably disposed in sequence in the circumferential direction. A plurality of first clamps 3 are arranged on the rotating seat 200 at equal intervals along the circumferential direction, and the rotating seat 200 can drive the first clamps 3 to sequentially pass through the feeding station 201, the welding station 202, the shape and position detection station 203 and the discharging station 204 through rotation.

Initially, the various parts of the assembled blank 110 may be assembled by manually or mechanically placing them on the first clamps 3 corresponding to the loading stations 201.

The first clamp 3 may then clamp the assembled part and be rotated by the rotation of the rotation base 200 to the welding station 202. A welding device is arranged above the welding station 202, and the welding device can firstly weld the upper surface of the assembled part; the first jig 3 may then turn the blank 110 with the upper surface welded thereto by 180 ° so that the lower surface of the blank 110 faces upward, and then weld the upper lower surface of the blank 110 by the welding device, thereby completing the welding process for the entire blank 110.

Then, the first clamp 3 is driven by the rotating base 200 to drive the blank 110 which is welded to move to the shape and position detecting station 203. A visual detection device is installed above the shape and position detection station 203, and the visual detection device can shoot the welded blank 110 and compare the structural shape of the shot blank 110 with the set structural shape, if the matching degree meets the requirement, the welding of the blank 110 is proved to meet the requirement, otherwise, the welding of the blank 110 is proved to not meet the requirement.

Finally, the first clamp 3 drives the blank 110 subjected to the forming position detection to move to the blanking station 204 under the driving of the rotating seat 200. The gripping device may grip the blank 110 meeting the welding requirement to a station corresponding to the next process, or grip the blank 110 to a defective product.

In this embodiment, there are various specific structures of the first fixture 3, one of which is shown in fig. 6, and the first fixture 3 includes a base plate 31, a supporting block 32, two sets of clamping assemblies 33, and a flipping assembly 34. The first clamp 3 may be fixedly mounted to the swivel base 200 through the bottom plate 31. A support block 32 is provided in the middle of the bottom plate 31 for supporting one end of the longitudinal tube 101 and the third transverse tube 104 of the blank 110. Two groups of clamping assemblies 33 are respectively arranged at two sides of the supporting block 32, and as the end of the blank 110 is six, the number of each clamping assembly 33 is three; each clamping assembly 33 can support and compress the corresponding end of the blank 110, and the clamping assemblies 33 and the supporting blocks 32 cooperate with each other to assemble and clamp the parts.

Specifically, the clamping assembly 33 is supported by the corresponding ends of the parts, so that the clamping assembly 33 can cooperate with the supporting block 32 to form a limiting area for assembling the parts; the clamping assembly 33 can then achieve an integral clamping of the assembled parts by compression of the respective ends, and thus can ensure stability of the assembly of the parts during welding to ensure the quality of the welding.

There are mainly two processes for a specific welding process; the first welding process comprises the following steps: when the first clamp 3 drives the assembled and clamped part to move to the welding station 202, the welding device arranged above the welding station 202 firstly welds the upper surface of the part for the first time. While the second welding process may include a first action and a second action; wherein, the first action: the clamp assembly 33 is retracted to disengage the end of the blank 110, at which point the clamp assembly 33 will lose support of the end of the blank 110; simultaneously, the support blocks 32 are separated by unfolding under the driving of the clamping assembly 33 so as to lose the support of the end part of the third transverse pipe 104; the rotational restriction of the blank 110 is removed relative to the end of the blank 110 and the third cross tube 104 is released. A second action: after the rotational restraint of the blank 110 is released, the invert assembly 34 may drive the blank 110 180 ° about the longitudinal tube 101 and then the clamp assembly 33 again clamps the inverted blank 110 for a second weld. After welding the two sides of the blank 110, the clamping assembly 33 may release the clamping of the blank 110 at the blanking station 204, and the gripping device may grip the blank 110 to the plugging station.

It should be noted that, initially, because the parts are in an unwelded state, the first transverse tube 102 and the second transverse tube 103 each require a pair of opposing clamping assemblies 33 for both end support and subsequent clamping to ensure stability of the assembly of the first transverse tube 102 and the second transverse tube 103. At the same time, one end of the third transverse tube 104 is supported by the supporting block 32, and the other end is supported by the corresponding clamping assembly 33 and is clamped later to ensure the assembly stability of the third transverse tube 104. Throughout the structure of the blank 110, the blank 110 can only be turned over by means of the winding of the longitudinal tube 101; the above-mentioned clamping assembly 33 and the supporting block 32 can limit the turning of the blank 110 by supporting the first transverse tube 102, the second transverse tube 103 and the third transverse tube 104, so that the blank 110 needs to be turned 180 ° smoothly by first performing the first operation to release the turning limitation of the blank 110 when the second welding is performed.

In this embodiment, the supporting block 32 has various specific structures, one of which is shown in fig. 7 to 9, and the supporting block 32 includes a fixed block 321, a pair of movable blocks 322, and a traction block 323. The fixed block 321 is fixedly arranged on the bottom plate 31, the movable block 322 is slidably mounted on two opposite sides of the fixed block 321, and the sliding direction of the movable block 322 is parallel to the axial direction of the longitudinal tube 101. The two movable blocks 322 support the longitudinal pipes 101 of the blank 110 through the top, and meanwhile, the two movable blocks 322 can also be matched with two sides of a baffle plate 3211 which is vertically arranged in the middle of the fixed block 321 through supporting grooves 3222 arranged at the top, so as to form supporting areas 320 for supporting the end parts of the two third transverse pipes 104 respectively. The traction block 323 is connected with the clamping assembly 33 and is respectively matched with the two movable blocks 322, when the clamping assembly 33 is retracted to release the support of the end part of the blank 110, the traction block 323 can synchronously move along with the clamping assembly 33, and further the two movable blocks 322 are driven to slide reversely along the axial direction of the longitudinal pipe 101, so that the supporting groove 3222 is far away from the baffle plate 3211, and the supporting area 320 loses the support of the third transverse pipe 104 to form an avoidance area 3223 through which the third transverse pipe 104 can rotate.

Specifically, the traction block 323 drives the movable block 322 to slide to form a plurality of specific structures of the avoidance area 3223, one of the structures is shown in fig. 8 and 9, two sides of the fixed block 321 are provided with limiting grooves 3210 parallel to the axial direction of the longitudinal pipe 101, and then the movable block 322 can be in sliding fit with the limiting grooves 3210 through limiting blocks 3221 arranged at the bottom. The lower part of the movable block 322 is provided with a wedge-shaped traction groove 3220, the traction block 323 is U-shaped, both sides of the traction block 323 are provided with wedge-shaped traction portions 3231, and the traction block 323 can be in sliding fit with the corresponding traction groove 3220 through the traction portions 3231, so that when the traction block 323 moves, the movable block 322 can be driven to slide along the limiting groove 3210 through the sliding of the traction portions 3231 relative to the traction groove 3220.

In this embodiment, the clamping assembly 33 has various specific structures, one of which is shown in fig. 10 and 11, and the clamping assembly 33 includes a first mounting seat 331, a slider 332 and a first displacement device 333. The first mounting seat 331 is fixedly disposed on the bottom plate 31. The sliding block 332 and the first mounting seat 331 are horizontally and elastically slidably mounted through the first spring 334, so that the sliding block 332 can be flush with the end portion of the first mounting seat 331 near the blank 110 under the elastic force of the first spring 334, and further support the corresponding end portion of the blank 110 through the top of the sliding block 332. The first displacement device 333 is fixedly mounted at one end of the first mounting seat 331 far away from the blank 110, the output end of the first displacement device 333 is provided with a clamping portion 3331, and the clamping portion 3331 can pass through the upper portion of the slider 332 in a matching manner and clamp the end portion of the blank 110 under the driving of the first displacement device 333.

For ease of understanding, the specific operation of the clamp assembly 33 will be described in detail below.

Initially, the slider 332 is flush with the end of the first mount 331 under the elastic force of the first spring 334; the slider 332 may then support the end of the part through the top support 3321 after the part is placed; at this time, a certain interval is kept between the clamping portion 3331 and the supporting portion 3321, so as to avoid interference of the clamping portion 3331 on the feeding of the parts.

After the loading of the parts is completed, the clamping part 3331 can approach the supporting part 3321 of the slide block 332 under the driving of the first displacement device 333 until the clamping part 3331 with a step shape positions and clamps the end parts of the parts.

When the first action of the second welding after the first welding is completed, the clamping portion 3331 can be retracted under the driving of the first displacement device 333 until the clamping portion 3331 is separated from the corresponding end portion of the blank 110, and along with the continued retraction of the clamping portion 3331, the clamping portion 3331 can drive the sliding block 332 to stretch the first spring 334 and slide in a direction away from the blank 110 by abutting against the sliding block 332 until the supporting portion 3321 on the sliding block 332 is separated from the end portion of the blank 110, so as to provide an avoidance space for the rotation of the blank 110 in the second action.

After the turning of the blank 110 is completed, the first displacement device 333 can drive the clamping portion 3331 to move towards the blank 110 again; the slider 332 will be restored under the elastic force of the first spring 334 until the clamping portion 3331 again performs positioning and clamping on the end of the blank 110.

It will be appreciated that after the first weld is completed, the blank 110 as a whole is already in a fixedly connected condition, and that the blank 110 does not collapse after the end of the blank 110 is lost.

It can be further appreciated that the clamping portion 3331 has a stepped shaft structure, so that when the end portion of the blank 110 is clamped, a portion of the rod section of the clamping portion 3331 can extend into the end portion of the blank 110, and thus a certain positioning effect can be provided for assembling the blank 110, so as to further improve the quality of the welded blank 110. Meanwhile, in order to further ensure the welding quality of the blank 110, a V-shaped notch may be formed at the end of the blank 110, and a V-shaped bump is mounted on the clamping portion 3331, so that when the clamping portion 3331 clamps the end of the blank 110, the assembly and positioning of the parts can be realized by corresponding clamping of the V-shaped bump and the V-shaped notch, so as to further improve the quality of the blank 110 after subsequent welding.

It should be noted that, since the two third transverse tubes 104 are arranged in a staggered manner in the axial direction of the longitudinal tube 101, the clamping portions 3331 on the clamping assemblies 33 corresponding to the third transverse tubes 104 have two ends to respectively clamp and position the ends of the third transverse tubes 104 before and after the blank 110 is turned.

It should be further appreciated that the specific structure and operation of the first displacement device 333 are well known to those skilled in the art, and thus, not described in detail herein, the first displacement device 333 is typically a linear motor, an air cylinder, a hydraulic cylinder, or the like.

In this embodiment, the turning assembly 34 has various specific structures, one of which is shown in fig. 12 to 14, and the turning assembly 34 includes a second mounting seat 341, a second displacement device 342, and a clamping jaw 343. The second mounting seat 341 is fixedly disposed on the bottom plate 31. The clamping jaw 343 is movably mounted on the top of the second mounting seat 341 through a connecting shaft 344, and the connecting shaft 344 coincides with the axis of the longitudinal tube 101 of the blank 110. The connecting shaft 344 is matched with the second mounting seat 341 through a driving structure; the second displacement device 342 is mounted on the second mounting seat 341 and is connected with the connecting shaft 344 in a matching manner, so that the connecting shaft 344 is driven by the second displacement device 342 to axially reciprocate.

When the connecting shaft 344 performs the extending movement close to the blank 110, the connecting shaft 344 may be driven by the driving structure to drive the blank 110 to rotate 180 ° around the longitudinal tube 101 through the clamping jaw 343; as the connecting shaft 344 moves in a retracting motion away from the blank 110, the connecting shaft 344 may be driven by the driving structure to translate the clamping jaw 343 to disengage from the blank 110.

It should be noted that the clamping jaw 343 has a U-shape, and the clamping jaw 343 has different heights at two sides in the initial stage; specifically, the height difference of the clamping jaw 343 at the two sides is exactly the diameter of the pipe of the blank 110, so that the clamping jaw 343 can rotate 180 ° synchronously with the clamping jaw 343 to turn over the blank 110 after clamping the blank 110.

It should also be appreciated that the specific construction and operation of the second displacement device 342 is well known to those skilled in the art, and therefore, not described in detail herein, the second displacement device 342 is typically a linear motor, a pneumatic cylinder, a hydraulic cylinder, or the like. The second displacement device 342 is rotationally connected to the connecting shaft 344 via an output end, i.e. the connecting shaft 344 can move axially synchronously with the output end of the second displacement device 342, but the rotation of the connecting shaft 344 is not limited by the output end of the second displacement device 342.

Specifically, there are various specific structures of the driving structure, one of which is shown in fig. 12 and 13, and the driving structure includes a driving groove 345 disposed outside the connecting shaft 344, and a driving block 3411 elastically slidably mounted on the second mounting seat 341 along a radial direction of the connecting shaft 344 through a second spring 3412, where the driving block 3411 may be slidably engaged with the driving groove 345. The drive slot 345 includes a pair of first slot segments 3451 and a pair of second slot segments 3452. The first groove sections 3451 extend axially and are arranged at 180 ° intervals in the circumferential direction. The two second groove sections 3452 are oppositely arranged in the area between the two first groove sections 3451, the first end of each second groove section 3452 is communicated with the first end of one first groove section 3451, and the second end of each second groove section 3452 is communicated with the middle part of the other first groove section 3451; the depth of the first slot section 3451 is greater at the first end than the depth of the second slot section 3452, and the depth of the second slot section 3452 is greater at the second end than the depth of the middle of the first slot section 3451. Then upon extension of the connecting shaft 344, the drive block 3411 slides from the second end of the first slot section 3451 along the second slot section 3452 to the first end of the other first slot section 3451; upon retraction of the connecting shaft 344, the drive block 3411 slides from the first end to the second end of the first slot section 3451.

It should be appreciated that to avoid the clamping jaw 343 affecting the welding of the blank 110, the clamping jaw 343 is initially spaced from the blank 110 as well as after the complete tipping; then, during the overturning of the blank 110, the clamping jaw 343 can move toward the blank 110 while maintaining the posture unchanged until the clamping jaw 343 clamps the blank 110 completely and then overturns. The second end of the second slot 3452 is in communication with the middle of the first slot 3451, so that the driving block 3411 can be slid horizontally from the initial position at the second end of the first slot 3451 to the second end of the second slot 3452 when the above process is performed. After the inversion of the blank 110 is completed, the driving block 3411 performs a horizontal retraction movement by sliding horizontally along the first end to the second end of the first slot section 3451 so that the holding jaw 343 remains unchanged in posture to avoid rotational interference with the blank 110. Specifically, the direction indicated by the dashed arrow in fig. 13 is the movement direction of the driving block 3411 for performing the above-described process.

It should also be appreciated that because the mounting plate 105 is welded to the blank 110, the mounting plate 105 may interfere with the retraction process of one of the clamp assemblies 33. When the blank 110 is turned over, the blank 110 may be retracted away from the clamping assembly 33 corresponding to the side of the mounting plate 105, and the support blocks 32 may be separated; the other set of clamp assemblies 33 is then retracted as the blank 110 is driven 90 ° to end vertical by the tipping assembly 34; the roll-over assembly 34 then continues to drive the blank 110 again 90 ° so that the blank 110 is again in a horizontal position to avoid the interference of the mounting plate 105 back against the clamp assembly 33.

In one embodiment of the present application, as shown in fig. 15, the plugging station is provided with a plugging mechanism 4, and the plugging mechanism 4 includes a base 41, a displacement assembly, a second clamp 45, two sets of plug sealing devices 42, and a positioning assembly 43. The base 41 is provided with a first plugging station 401 and a second plugging station 402 which are adjacent to each other; two sets of plug sealing devices 42 are respectively arranged below the first plugging station 401 and the second plugging station 402; because the number of end portions of the blank 110 that need to be plugged is different, the number of two sets of plug seals 42 is different, with one set of plug seals 42 being three and the other being two. The positioning assembly 43 is mounted above the base 41, and the positioning assembly 43 can provide downward positioning support for the blank 110 when the end of the blank 110 is plugged by the plug 106. The base 41 is fixed with a support 411 above between the positioning component 43 and the plug sealing device 42, and the support 411 penetrates through the first plugging station 401 and the second plugging station 402. The second clamp 45 is slidably mounted on the support 411, and the blank 110 to be plugged can be placed on the second clamp 45 under the gripping of the gripping device with one side end facing downward. The displacement assembly is disposed on the support 411 and is in driving fit with the second fixture 45, so that the second fixture 45 can be driven by the displacement assembly to move from the first plugging station 401 to the second plugging station 402.

For ease of understanding, the specific operation of the plugging mechanism 4 will be described below.

Initially, the second clamp 45 is positioned at the first plugging station 401, and both the positioning assembly 43 and the plug seal device 42 are positioned away from the second clamp 45.

After the blank 110 is placed on the second clamp 45, the positioning assembly 43 will move downward to urge the blank 110 downward on the second clamp 45 to a positioned state. The set of plug seals 42 corresponding to the first plugging station 401 will then urge the plugs 106 up to be sealingly mounted to the corresponding ends of the blanks 110 to complete the plugging.

After the closure of one side of the blank 110 is completed, the positioning assembly 43 is reset; the second clamp 45 is driven by the displacement assembly to move the blank 110 to the second plugging station 402, and during the movement of the blank 110, the second clamp 45 can drive the blank 110 to turn 180 ° so that the end portion of the other side that is not plugged is downward located at the second plugging station 402.

The plugging process at the first plugging station 401 is then repeated to plug the other end of the blank 110 at the second plugging station 402.

Finally, the fully blocked blank 110 is grasped by the grasping device to the next station, and the second clamp 45 is reset to the initial position under the urging of the displacement assembly to await placement of the next blank 110.

It should be appreciated that the specific construction and operation of the plug seal 42 is well known to those skilled in the art and will not be described in detail herein. For ease of understanding, the structure of the plug seal device 42 may be described simply, where the plug seal device 42 includes a vertical telescopic device and a placement table mounted to the driving end of the telescopic device, and the plug 106 may be placed on the placement table under the gripping of the manipulator. Because the plug 106 is small in size and not easily clamped, the plug seal 42 is disposed vertically and the plug 106 is driven to move vertically to seal the end of the blank 110.

It should also be appreciated that the specific structure and operation principle of the displacement assembly are well known to those skilled in the art, and in this embodiment, the displacement assembly adopts a screw driving manner due to the long stroke. Specifically, the displacement assembly includes a rotating device (not shown) and a screw shaft 44; the rotating device is fixedly arranged on the supporting frame 411, the screw rod shaft 44 is rotatably arranged on the supporting frame 411 and connected with the output end of the rotating device, the second clamp 45 is matched with the screw rod shaft 44, and then the second clamp 45 is driven by the screw rod shaft 44 to horizontally move along the supporting frame 411. The specific construction of a rotating device is well known to those skilled in the art, and a common rotating device is an electric motor.

In this embodiment, the second fixture 45 has various specific structures, one of which is shown in fig. 17 to 21, and the second fixture 45 includes a moving plate 451, a placing frame 452, and a replacing assembly 453. The moving plate 451 is slidably mounted on the supporting frame 411 and is in fit connection with the screw shaft 44; the moving plate 451 is provided with a positioning hole 4510 vertically corresponding to an end of the blank 110. The placing frame 452 is vertically and elastically slidably mounted on the moving plate 451, the blank 110 to be plugged is placed on the placing frame 452, and then when the plug 106 is plugged, the positioning assembly 43 can press the end portion of the blank 110, which is moved down to one side, to pass through the positioning hole 4510, and the blank 110 is in a positioning state. The transposition assembly 453 is installed on one side of the moving plate 451 and cooperates with the base 41, so that when the moving plate 451 is driven by the displacement assembly to move from the first plugging station 401 to the second plugging station 402, the transposition assembly 453 can drive the blank 110 to rotate 180 ° around the longitudinal pipe 101.

It should be appreciated that the placement of the blank 110 cannot interfere, i.e., the upper and lower ends of the blank 110 are in a floating state when the blank 110 is placed on the carrier 452. In order to ensure the accuracy and stability of the plugging, the blank 110 needs to be positioned to avoid the offset during the plugging process when the plug 106 is plugged. For positioning the blank 110, the end of the positioning assembly 43 that drives the lower blank 110 downward to move to the lower side passes through the set positioning hole 4510, so that the blank 110 cannot deflect at this time, and stability and accuracy of the plugging process can be ensured.

Meanwhile, since the blank 110 needs to be turned to plug both sides, when the positioning assembly 43 moves vertically upwards, the vertical elastic sliding rack 452 can drive the blank 110 to move upwards through elastic force until the blank 110 is out of the positioning state, so that the subsequent turning is facilitated.

In particular, the indexing assembly 453 has various specific structures, one of which is shown in fig. 18 to 21, and the indexing assembly 453 includes first and second clamping plates 4531 and 4532, a gear shaft 4536, and a gear 4537. The gear shaft 4536 is rotatably mounted to the top of the third mount 4511 provided at one side of the moving plate 451. The first clamping plate 4531 is L-shaped and is in splined connection with the tooth shaft 4536 via a spline shaft 4534; the spline shaft 4534 is further sleeved with a third spring 4535, and the third spring 4535 is respectively connected with the spline shaft 4534 and the gear shaft 4536, so that the first clamping plate 4531 is in elastic spline connection with the gear shaft 4536. The second clamping plate 4532 is resiliently rotatably mounted to one side of the first clamping plate 4531 by a torsion spring 4533 such that a "U" shaped clamping region is formed between the first clamping plate 4531 and the second clamping plate 4532 which clamps one side of the blank 110. The gear 4537 is rotatably mounted to the top of the third mount 4511 via a rotation shaft and engages with the gear shaft 4536, and the diameter of the gear 4537 is larger than the diameter of the gear shaft 4536. The gear 4537 is matched with the base 41 through a transposition structure, so that when the moving plate 451 moves from the first plugging station 401 to the second plugging station 402, the gear 4537 rotates under the driving of the transposition structure to engage with the gear shaft 4536 to rotate, and the clamped blank 110 can be driven to perform transposition rotation around the longitudinal tube 101.

It should be noted that, when the blank 110 is placed on the placing rack 452, the side portion of the blank 110 may press the inclined surface to drive the first clamping plate 4531 and the second clamping plate 4532 to move away from the blank 110 until the blank 110 is placed, and after the first clamping plate 4531 and the second clamping plate 4532 reset under the elastic force of the third spring 4535 to clamp one side of the blank 110, so that the blank 110 is in a state with the end portion vertical, and further, it may be ensured that the subsequent positioning assembly 43 may smoothly press the blank 110 to move vertically. After the complete occlusion of the blank 110, the first clamping plate 4531 and the second clamping plate 4532 have rotated 180 ° and the second clamping plate 4532 faces the feeding and discharging area, so that the blank 110 will pull the second clamping plate 4532 to rotate outwards around the first clamping plate 4531 after the grabbing device grabs, until the blank 110 is separated from the clamping area formed by the first clamping plate 4531 and the second clamping plate 4532, and the second clamping plate 4532 will reset under the elasticity of the torsion spring 4533.

It should be further appreciated that, by virtue of the engagement of the gear 4537 with the gear shaft 4536, the rotation angle of the gear 4537 may be enlarged, and taking the case that the gear ratio is set to be equal to 3 as an example, the blank 110 is intended to rotate 180 °, only 60 ° of rotation of the gear 4537 is required, so that the design requirement of the subsequent transposition structure and the rotation travel of the gear 4537 may be reduced.

In this embodiment, when the positioning assembly 43 presses and positions the blank 110, in order to ensure the stability of the stress of the blank 110, the pressing position of the positioning assembly 43 is generally opposite to the sealing installation position of the plug 106, that is, the positioning assembly 43 will press the upper end of the blank 110. Specifically, as shown in fig. 19 to 21, the positioning assembly 43 includes a pressing plate 431, a plurality of positioning blocks 432, and a telescopic device; the pressing plate 431 extends to the whole first plugging station 401 and the second plugging station 402, and a plurality of positioning blocks 432 are correspondingly arranged on the pressing plate 431 at installation setting positions; the telescopic device can drive the pressing plate 431 to drive the plurality of positioning blocks 432 to vertically move through the output end so as to press the blank 110.

It should be noted that, since the two third transverse pipes 104 are offset, the corresponding positioning blocks 432 have a longer length when the ends of the third transverse pipes 104 are plugged, and can be pressed against the opposite side of the welding position between the third transverse pipes 104 and the vertical pipes 101. This will result in the second clamp 45 moving from the first plugging station 401 to the second plugging station 402, and the positioning block 432 corresponding to the third cross tube 104 at the first plugging station 401 will interfere with the movement of the blank 110. In order to ensure that the blank 110 can be moved smoothly to the second plugging station 402, it is necessary to first rotate the blank 110 90 ° to the horizontal by the indexing structure, and then rotate the blank 110 90 ° again to complete the inversion indexing when it is moved to the second plugging station 402.

In this embodiment, in order to implement the above-mentioned overturning and transposing process of the blank 110, there are various specific structures of the transposing structure, one of which is shown in fig. 16 to 21, the transposing structure includes a guide plate 412 with an arc-shaped cross section fixed on the side of the support 411, and a guide rod 4538 radially extending from the end of the rotating shaft and engaged with the guide plate 412. The center of the guide plate 412 is concentric with the axis of the gear 4537, and a pair of inclined third groove segments 461 and a horizontally disposed fourth groove segment 462 are provided on the guide plate 412 at intervals in the horizontal direction. The two third groove sections 461 are arranged at intervals in the horizontal direction and are staggered in the circumferential direction, and the two third groove sections 461 are communicated through a horizontal fourth groove section 462.

For ease of understanding, the specific operation of the indexing structure will be described in detail below.

Initially, as shown in fig. 19, the blank 110 is placed on the shelf 452 of the second fixture 45 at the first plugging station 401 with the guide bar 4538 in the lower end position of the first third slot section 461.

Subsequently, after the blank 110 completes the plugging of the lower end portion at the first plugging station 401, the positioning assembly 43 is away from the blank 110, so that the placing rack 452 drives the blank 110 to return to the initial position under the action of elastic force, and at this time, the axis of the longitudinal tube 101 coincides with the axis of the tooth shaft 4536.

Subsequently, as shown in fig. 20, the moving plate 451 is moved towards the direction of the second plugging station 402 under the driving of the screw shaft 44, and at the same time, the guide rod 4538 slides along the first third slot segment 461, and the guide rod 4538 drives the gear 4537 to deflect by a corresponding angle, so that the clamping area formed by the first clamping plate 4531 and the second clamping plate 4532 is driven to rotate the blank 110 by 90 ° to the horizontal through the engagement of the gear 4537 and the gear 4536.

Subsequently, the moving plate 451 will continue to move toward the second plugging station 402 under the urging of the screw shaft 44, while the guide bar 4538 will slide along the fourth slot segment 462, and the blank 110 will remain level with the moving plate 451 to avoid interference with the locating block 432.

Finally, as shown in fig. 21, the moving plate 451 is moved towards the second plugging station 402 under the driving of the screw shaft 44, and at the same time, the guide rod 4538 slides along the second third slot segment 461, and then the guide rod 4538 drives the gear 4537 to deflect by a corresponding angle again, so that the clamping area formed by the first clamping plate 4531 and the second clamping plate 4532 is driven to rotate the blank 110 by 90 ° again until the end of the blank 110 is vertical through the engagement of the gear 4537 and the gear 4536.

In another aspect, the present application provides a process for producing a motor spray pipe production line for a new energy automobile, as shown in fig. 4, wherein a preferred embodiment includes the following steps:

s100: the parts are manually or mechanically placed in an automated welding station for assembly and welding to provide the front blank 110 of the motor spray tube 100.

S200: the resulting blank 110 is moved to a plugging station to plug five of the ports of the blank 110.

S300: and (5) moving the blocked blank 110 to a copper paste dispensing station, and further coating the welding position of the blank 110 with copper paste.

S400: the coated blank 110 is grasped to a bending station and the longitudinal tube 101 of the blank 110 is bent to the desired arc to obtain the desired motor spray tube 100 product.

S500: and (5) moving the obtained motor spray pipe 100 product to a detection station for tightness detection and blanking.

The foregoing has outlined the basic principles, main features and advantages of the present application. It will be appreciated by persons skilled in the art that the present application is not limited to the embodiments described above, and that the embodiments and descriptions described herein are merely illustrative of the principles of the present application, and that various changes and modifications may be made therein without departing from the spirit and scope of the application, which is defined by the appended claims. The scope of protection sought herein is as set forth in the claims below and the equivalents thereof.

Claims (9)

1. The utility model provides a motor spray pipe production line for new energy automobile which characterized in that includes:

an automatic welding station; the automatic welding station is used for assembling parts forming the motor spray pipe, and performing omnidirectional welding by overturning the assembled parts so as to obtain a front blank of the motor spray pipe;

a plugging station; the plugging station is suitable for performing 180-degree transposition on the blank, and further performing plug sealing on corresponding ports on two sides of the blank; and

a gripping device; the grabbing device is suitable for grabbing a workpiece and moving between stations;

the automatic welding station is provided with a first clamp, parts are assembled and clamped on the first clamp, and welding is completed twice through overturning, so that a blank is obtained;

the first clamp comprises a supporting block, two groups of clamping assemblies and a turnover assembly; the two groups of clamping assemblies are respectively arranged at two sides of the supporting block, and then the clamping assemblies and the supporting block are mutually matched to assemble and clamp parts;

when the first clamp drives the assembled and clamped parts to move to a welding station, a welding device arranged above the welding station firstly welds the parts for the first time; the second welding process includes a first action and a second action; wherein the method comprises the steps of

A first action: the clamping assembly is retracted to be separated from the end part of the blank, and the supporting blocks are unfolded and separated under the driving of the clamping assembly so as to release the rotation restriction of the blank;

a second action: the overturning assembly drives the blank to overturn 180 degrees around the longitudinal pipe, and then the clamping assembly clamps the overturned blank again to carry out secondary welding.

2. The motor spray pipe production line for new energy automobiles according to claim 1, wherein the supporting block comprises:

a fixed block; the fixed block is fixedly arranged;

a pair of movable blocks; the movable block is slidably arranged on two opposite sides of the fixed block, the top of the movable block is used for supporting the longitudinal pipe of the blank, and the movable block is matched with the fixed block to form a supporting area for supporting the third transverse pipe; and

a traction block; the traction block is connected with the clamping assembly and is matched with the two movable blocks respectively;

when the clamping assembly is retracted, the traction blocks are suitable for driving the two movable blocks to slide back to back along the axial direction of the longitudinal pipe, so that the support area loses the support on the third transverse pipe to form an avoidance area.

3. The motor spray pipe production line for new energy automobiles as claimed in claim 1, wherein the clamping assembly comprises:

a first mount; the first mounting seat is fixedly arranged;

a slide block; the sliding block is horizontally and elastically slidably arranged with the first mounting seat, and is suitable for supporting the end part of the blank through the top; and

a first displacement device; the first displacement device is fixedly arranged on the first mounting seat, and the output end of the first displacement device is used for clamping the end part of the blank and is matched with the sliding block;

when the output end of the first displacement device is retracted to the limit position, the sliding block is suitable for being driven by the first displacement device to move in a direction away from the blank by overcoming the elastic force until the end of the blank is separated from the sliding block.

4. The motor spray pipe production line for new energy automobiles as claimed in claim 1, wherein the turnover assembly comprises:

a second mounting base; the second mounting seat is fixedly arranged;

a clamping jaw; the clamping jaw is movably mounted on the second mounting seat through a connecting shaft, and the connecting shaft is overlapped with the axis of the longitudinal pipe of the blank; the connecting shaft is matched with the second mounting seat through a driving structure; and

A second displacement device; the second displacement device is arranged on the second mounting seat and is in matched connection with the connecting shaft, and the connecting shaft is driven by the second displacement device to axially reciprocate; wherein the method comprises the steps of

When the connecting shaft performs extension movement close to the blank, the connecting shaft is suitable for driving the blank to rotate 180 degrees around the longitudinal pipe through the clamping jaw under the driving of the driving structure;

when the connecting shaft performs retracting movement away from the blank, the connecting shaft is suitable for driving the clamping jaw to translate under the driving of the driving structure so as to be separated from the blank.

5. The motor spray pipe production line for new energy automobiles according to claim 4, wherein: the driving structure comprises a driving groove arranged on the outer side of the connecting shaft and a driving block which is elastically and slidably arranged on the second mounting seat along the radial direction of the connecting shaft and is in sliding fit with the driving groove;

the driving groove comprises a pair of first groove sections and a pair of second groove sections, the first groove sections extend axially and are arranged at intervals of 180 degrees along the circumferential direction, the first ends of the second groove sections are communicated with the first ends of one of the first groove sections, and the second ends of the second groove sections are communicated with the middle of the other first groove section; the depth of the first end of the first groove section is larger than that of the second groove section, and the depth of the second end of the second groove section is larger than that of the middle part of the first groove section;

The driving block slides from the second end of the first groove section to the first end of the other first groove section along the second groove section when the connecting shaft stretches out;

the drive block slides from the first end to the second end of the first slot segment upon retraction of the connecting shaft.

6. The motor spray pipe production line for new energy automobiles according to any one of claims 1 to 5, wherein: the shutoff station is installed shutoff mechanism, shutoff mechanism includes:

a base; the base is provided with a first plugging station and a second plugging station which are adjacent to each other;

two sets of plug sealing devices; the two groups of plug sealing devices are respectively arranged below the first plugging station and the second plugging station;

a positioning assembly; the positioning component is arranged above the base;

a second clamp; the second clamp is slidably mounted on the base, and a blank to be plugged is suitable for being placed on the second clamp under the grabbing of the grabbing device according to the condition that one side end part of the blank is downward; and

a displacement assembly; the second clamp is suitable for being driven by the displacement assembly to move from the first plugging station to the second plugging station;

When the second clamp is positioned at the first plugging station, the positioning assembly is suitable for positioning the blank, and further the plug sealing device of the corresponding group seals the plug on one side end of the blank;

in the process that the second clamp moves from the first plugging station to the second plugging station, the second clamp is suitable for being matched with the base through the guide structure to drive the blank to rotate 180 degrees around the longitudinal pipe, and then the plug at the end part of the other side of the blank is sealed at the second plugging station.

7. The motor spray pipe production line for new energy automobiles as claimed in claim 6, wherein the second clamp comprises:

a moving plate; the moving plate is slidably arranged on the base and is in matched connection with the displacement assembly, and a positioning hole vertically corresponding to the end part of the blank is formed in the moving plate;

a placing rack; the placing frame is vertically and elastically installed on the moving plate in a sliding manner, a blank to be plugged is placed on the placing frame, and then when plugging of the plug is carried out, the positioning assembly is suitable for extruding the end part of the blank, which moves downwards to one side, to downwards pass through the positioning hole; and

A transposition assembly; the transposition assembly is arranged on one side of the moving plate and matched with the base, and when the moving plate is driven by the displacement assembly to move from the first plugging station to the second plugging station, the transposition assembly is suitable for driving the blank to rotate 180 degrees around the longitudinal pipe.

8. The motor spray pipe production line for new energy automobiles according to claim 7, wherein: the side part of the base is fixedly provided with a guide plate with an arc-shaped section, a pair of inclined third groove sections are arranged on the guide plate at intervals along the horizontal direction, the two third groove sections are arranged in a staggered manner in the circumferential direction, and the two third groove sections are communicated through a horizontal fourth groove section;

the positioning assembly comprises a plurality of positioning blocks, wherein the positioning blocks are suitable for being corresponding to the end positions of the blank, and the positioning assembly is suitable for being extruded with the non-plugging end of the blank through vertical movement of the positioning blocks;

the transposition assembly comprises:

a tooth shaft; the gear shaft is rotatably arranged at the top of a third mounting seat arranged at one side of the moving plate;

a first clamping plate; the first clamping plate is L-shaped and is in elastic spline connection with the gear shaft through a spline shaft;

A second clamping plate; the second clamping plate is elastically rotatably arranged on one side of the first clamping plate through a torsion spring so as to form a clamping area for clamping one side of the blank; and

a gear; the gear is rotatably arranged at the top of the third mounting seat through a rotating shaft and meshed with the gear shaft, the axis of the gear coincides with the circle center corresponding to the guide plate, and the diameter of the gear is larger than that of the gear shaft; the end part of the rotating shaft is provided with a guide rod which extends radially and is matched with the guide plate;

when the moving plate moves from the first plugging station to the second plugging station, the guide rod drives the blank to rotate 90 degrees to the horizontal around the longitudinal pipe through sliding along the first third groove section, and then the guide rod slides along the fourth groove section to keep horizontal to pass over the positioning block until the guide rod slides along the second third groove section to drive the blank to rotate 90 degrees again around the longitudinal pipe.

9. A production process of a motor spray pipe production line for a new energy automobile, which is characterized by comprising the following steps of:

s100: the parts are placed in an automatic welding station in a manual or mechanical mode to be assembled and welded, and then a front blank of the motor spray pipe is obtained;

S200: moving the obtained blank to a plugging station, and plugging five ports of the blank;

s300: moving the blocked blank to a copper paste station, and further coating copper paste on the welding position of the blank;

s400: grabbing the coated blank to a bending station, and bending the longitudinal pipe of the blank to a required radian to obtain a required motor spray pipe product;

s500: and moving the obtained motor spray pipe product to a detection station for tightness detection and blanking.