Automatic test equipment for new energy fuel injection pipe

Abstract

The invention discloses new energy fuel injection pipe automatic test equipment, and relates to the technical field of new energy automobile processing equipment. Comprising a driving motor cooling oil pipe airtight clamp, and the driving motor cooling oil pipe airtight clamp comprises a supporting seat and a clamping device, and the top of the supporting seat is provided with a limiting groove matched with a cooling oil pipe; the plurality of elastic sealing pads are fixedly arranged in the limiting grooves respectively and correspond to the cooling spray holes of the cooling oil pipe; the two ends of the elastic sealing pad respectively climb to the top surface of the supporting seat; the air inlet linear driving mechanism is fixedly arranged at the oil inlet of the cooling oil pipe, an air inlet column is arranged at the piston rod end of the air inlet linear driving mechanism, and an air inlet hole connected with an air source is formed in the end face of the air inlet column; the air inlet hole is provided with a first sealing ring which is fixedly connected; the gas blocking linear driving mechanism is fixedly arranged at an oil return opening of the cooling oil pipe, and a piston rod end of the gas blocking linear driving mechanism is provided with a fixedly connected second sealing column; the pressing plate moves up and down above the supporting base through a pressing linear driving mechanism, and a plurality of elastic pressing blocks used for pressing the cooling oil pipes are arranged at the bottom of the pressing plate. According to the invention, a plurality of cooling spray holes are reliably sealed at the same time, and the detection efficiency and reliability are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicle processing equipment, and particularly relates to an automatic testing equipment for new energy fuel injection pipes. Background Art

[0002] The research and development of new energy vehicles is one of the effective solutions to alleviate energy and climate problems. For new energy vehicles, the drive motor is the core of its drive. The requirements for high performance and the trend of high power density ratio of the motor are becoming stronger and stronger. The rotational speed and power of the drive motor of new energy vehicles are getting higher and higher, and the demand for cooling is also getting higher and higher. At present, the cooling of the electric drive system is mainly carried out through cooling oil pipes. Therefore, the airtightness of the cooling oil pipes has become one of the important detection items for the efficient operation of the drive motor.

[0003] The drive motor cooling oil pipe mainly includes a central longitudinal pipe, a plurality of transverse pipes and a longitudinal tail pipe. As Figure 6 shown, due to the horizontal and vertical interlacing of the structure, a plurality of cooling spray holes are provided below the horizontally and vertically interlaced pipe bodies. When performing airtightness detection, the difficulty of reliably sealing a plurality of cooling spray holes simultaneously increases. At present, the inspectors usually use a plurality of elastic rubber gaskets to sleeved on the pipe body with cooling spray holes. After sealing and fixing, the airtightness of the drive motor cooling oil pipe is detected by an airtightness detection device. In this method, during the detection process, if the rubber gasket is accidentally moved, the detection will fail, which is not only prone to misjudgment, but also the time for sleeving the gasket is relatively long, and the detection efficiency is greatly restricted. Therefore, how to efficiently achieve reliable sealing of a plurality of cooling spray holes simultaneously and improve the detection efficiency and reliability is the technical problem that needs to be solved urgently in this case. Summary of the Invention

[0004] The present invention aims at the above problems and provides an automatic testing equipment for new energy fuel injection pipes with a compact structure, reliable simultaneous sealing of a plurality of cooling spray holes, and improved detection efficiency and reliability.

[0005] The technical solution of the present invention is as follows: An automatic testing equipment for new energy fuel injection pipes includes an airtight fixture for the drive motor cooling oil pipe. The airtight fixture for the drive motor cooling oil pipe includes: A support seat, with a limit groove adapted to the cooling oil pipe provided on the top; A plurality of elastic sealing gaskets, fixedly arranged in the limit groove respectively, corresponding to the cooling spray holes of the cooling oil pipe; both ends of the elastic sealing gaskets climb to the top surface of the support seat respectively; An air intake linear drive mechanism, fixedly arranged at the oil inlet of the cooling oil pipe, with an air intake column provided at the piston rod end. An air intake hole connected to the air source is provided on the end face of the air intake column; a first sealing ring is fixedly connected to the air intake hole; The air-blocking linear drive mechanism is fixedly arranged at the oil return port of the cooling oil pipe, and a second sealing column is fixedly connected to the piston rod end thereof; The pressing plate moves up and down above the support seat through the pressing linear drive mechanism, and a plurality of elastic pressing blocks for pressing the cooling oil pipe are arranged at the bottom.

[0006] Specifically, a plurality of fixedly connected limiting blocks are arranged on the top surface of the support seat.

[0007] Specifically, the support seat includes: The first transverse seat is detachably arranged on the top surface of the airtight workbench; The second transverse seat is detachably arranged on the top surface of the airtight workbench and is located on the side of the first transverse seat; The third transverse seat is detachably arranged on the top surface of the airtight workbench and is located on the side of the first transverse seat, and there is a spacing from the second transverse seat; The fourth transverse seat is detachably arranged on the top surface of the airtight workbench and is located on the side of the third transverse seat; The middle longitudinal seat is detachably arranged on the top surface of the airtight workbench and is located between the second transverse seat and the third transverse seat; The tail longitudinal seat is detachably arranged on the top surface of the airtight workbench and is located on the side of the fourth transverse seat.

[0008] Specifically, an installation notch adapted to the tail longitudinal seat is arranged on the side of the fourth transverse seat.

[0009] Specifically, the top surface of the tail longitudinal seat is a slope.

[0010] Specifically, the air intake linear drive mechanism includes an air intake cylinder, an air intake oil cylinder or an air intake electric push rod.

[0011] Specifically, the air-blocking linear drive mechanism includes an air-blocking cylinder, an air-blocking oil cylinder or an air-blocking electric push rod.

[0012] Specifically, the pressing linear drive mechanism includes a pressing cylinder, a pressing oil cylinder or a pressing electric push rod.

[0013] Specifically, the pressing plate slides up and down above the support seat through a pair of guide columns.

[0014] Specifically, the elastic pressing block is detachably and fixedly arranged on the bottom surface of the pressing plate through a connecting piece; A plurality of fixedly connected cross beams are arranged below the pressing plate; a plurality of adjusting screws are movably connected up and down on the cross beams; The pressing plate is fixedly connected to the adjusting screw, and a spring A is arranged between the pressing plate and the cross beam.

[0015] The present invention includes a support base, an elastic sealing washer, an intake linear drive mechanism, a gas-blocking linear drive mechanism, and a pressing plate; after the cooling oil pipe enters the limit groove, the piston rod of the pressing linear drive mechanism presses down, pressing a plurality of elastic pressing blocks onto the upper surface of the cooling oil pipe, and a plurality of cooling spray holes of the cooling oil pipe are closed through corresponding elastic sealing washers. After the cooling oil pipe is hermetically fixed, the intake linear drive mechanisms and the gas-blocking linear drive mechanisms on both sides start to work respectively; the second sealing column at the piston rod end of the gas-blocking linear drive mechanism closes the oil return port. While the intake linear drive mechanism seals the periphery of the oil inlet, the intake function of the cooling oil pipe is realized through the intake hole and the middle hole of the first sealing ring. The reliable sealing of multiple cooling spray holes is efficiently achieved, improving the detection efficiency and reliability. Description of the Drawings

[0016] Figure 1 is a three-dimensional structural schematic diagram of the airtight fixture; Figure 2 is a three-dimensional structural schematic diagram of the connection state of the pressing plate; Figure 3 is a three-dimensional structural schematic diagram of the connection state of the elastic pressing block; Figure 4 is a three-dimensional structural schematic diagram of the support base; Figure 5 is a top view of the support base; Figure 6 is a three-dimensional structural schematic of the cooling oil pipe Figure 1 ; Figure 7 is a three-dimensional structural schematic of the cooling oil pipe Figure 2 ; Figure 8 is a three-dimensional structural schematic diagram of the cooling oil pipe forming inspection fixture; Figure 9 is a three-dimensional structural schematic diagram of the combined state of the first detection mechanism and the second detection mechanism; Figure 10 is a three-dimensional structural schematic diagram of the setting state of the first detection mechanism; Figure 11 is a three-dimensional structural schematic diagram of the placement state of the cooling oil pipe; Figure 12 is a three-dimensional structural schematic diagram of the connection state between the flange locking mechanism and the flange plate; Figure 13 is a three-dimensional structural schematic diagram of the flange locking mechanism; Figure 14 is a structural schematic diagram of the transfer mechanism; In the figure, 100 is the cooling oil pipe, 110 is the flange plate, 210 is the support base, 211 is the limit block, 212 is the first horizontal base, 213 is the second horizontal base, 214 is the third horizontal base, 215 is the fourth horizontal base, 216 is the middle longitudinal base, 217 is the tail longitudinal base, 220 is the elastic sealing gasket, 230 is the intake linear drive mechanism, 231 is the intake column, 232 is the first sealing ring, 240 is the air-blocking linear drive mechanism, 241 is the second sealing column, 250 is the pressing plate, 251 is the pressing linear drive mechanism, 252 is the elastic pressing block, 253 is the pressing plate, 254 is the cross beam, 2541 is the adjusting screw, 260 is the elastic buffer sleeve, 261 is the buffer rod, 262 is the buffer column; 310 is the forming detection table, 311 is the first horizontal detection table, 312 is the first longitudinal detection table, 313 is the second horizontal detection table, 314 is the third horizontal detection table, 315 is the fourth horizontal detection table, 3151 is the left detection table four, 3152 is the right detection table four, 316 is the tail detection table, 320 is the detection mechanism two, 321 is the detection pin, 322 is the detection seat, 330 is the detection mechanism one, 331 is the detection end table, 332 is the pressing hinge presser, 340 is the hole position detection mechanism, 341 is the hole position fixing arm, 242 is the hole position rotating arm, 243 is the detection needle, 400 is the flange locking mechanism, 410 is the flange hinge presser, 420 is the limit column. Specific embodiments

[0017] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0018] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0019] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] The following refers to Figure 1-7 describe the present invention; A new energy fuel injection pipe automatic testing device includes a driving motor cooling oil pipe airtight fixture and a cooling oil pipe forming inspection tool; The driving motor cooling oil pipe airtight fixture includes: A support base 210, with a limit groove adapted to the cooling oil pipe 100 provided on the top; Specifically, a plurality of limit blocks 211 fixedly connected by connecting members are provided on the top surface of the support base 210. As Figure 4 shown, the plurality of limit blocks 211 are respectively located at the edges close to the corresponding limit grooves.

[0021] The support base 210 includes: A first transverse seat 212, detachably arranged on the top surface of the airtight workbench through a connecting member; A second transverse seat 213, detachably arranged on the top surface of the airtight workbench through a connecting member, located on the side of the first transverse seat 212; in this case, the second transverse seat 213 is parallel to the first transverse seat 212; A third transverse seat 214, detachably arranged on the top surface of the airtight workbench through a connecting member, located on the side of the first transverse seat 212, and having a spacing from the second transverse seat 213; in this case, the third transverse seat 214 is parallel to the first transverse seat 212; A fourth transverse seat 215, detachably arranged on the top surface of the airtight workbench through a connecting member, located on the side of the third transverse seat 214. In this case, the fourth transverse seat 215 is parallel to the first transverse seat 212; an installation notch adapted to the tail longitudinal seat 217 is provided on the side of the fourth transverse seat 215, and the end of the tail longitudinal seat 217 extends into the installation notch to improve the assembly accuracy and efficiency.

[0022] A middle longitudinal seat 216, detachably arranged on the top surface of the airtight workbench through a connecting member, located between the second transverse seat 213 and the third transverse seat 214; The tail longitudinal seat 217 is detachably arranged on the top surface of the airtight workbench through a connecting piece and is located on the side of the fourth transverse seat 215; in this case, the tail longitudinal seat 217 and the middle longitudinal seat 216 are parallel to each other. The top surface of the tail longitudinal seat 217 is an inclined surface, which is adapted to the cooling oil pipe 100.

[0023] A number of elastic sealing washers 220 are provided and are respectively fixedly arranged in the limiting grooves and correspond to the cooling spray holes of the cooling oil pipe 100; both ends of the elastic sealing washer 220 respectively climb up to the top surface of the support seat 210; in this case, the elastic sealing washer 220 is a rubber washer, and the cooling spray holes of the cooling oil pipe 100 are respectively sealed through the corresponding elastic sealing washers 220; The air intake linear drive mechanism 230 is detachably and fixedly arranged at the oil inlet of the cooling oil pipe 100 through a connecting piece. Its piston rod end is provided with an air intake column 231, and an air intake hole connected to the air source is arranged on the end surface of the air intake column 231; a first sealing ring 232 is fixedly connected to the orifice of the air intake hole; when the piston rod of the air intake linear drive mechanism 230 extends, the first sealing ring 232 is butted against the oil inlet of the cooling oil pipe 100; The air intake linear drive mechanism 230 includes an air intake cylinder, an air intake oil cylinder or an air intake electric push rod.

[0024] The air blocking linear drive mechanism 240 is detachably and fixedly arranged at the oil return port of the cooling oil pipe 100 through a connecting piece. Its piston rod end is provided with a fixedly connected second sealing column 241, which is made of the same material as the sealing ring and is used to block the oil return port of the cooling oil pipe 100; The air blocking linear drive mechanism 240 includes an air blocking cylinder, an air blocking oil cylinder or an air blocking electric push rod.

[0025] The pressing plate 250 moves up and down above the support seat 210 through the pressing linear drive mechanism 251, and a number of elastic pressing blocks 252 for pressing the cooling oil pipe 100 are arranged at the bottom.

[0026] The pressing linear drive mechanism 251 includes a pressing cylinder, a pressing oil cylinder or a pressing electric push rod. The pressing plate 250 slides up and down above the support seat 210 through a pair of guide columns.

[0027] After the cooling oil pipe 100 enters the limit groove, the piston rod of the pressing linear drive mechanism 251 presses down, pressing multiple elastic pressing blocks 252 onto the upper surface of the cooling oil pipe 100. The multiple cooling spray holes of the cooling oil pipe 100 are sealed through corresponding elastic sealing gaskets 220. After the cooling oil pipe 100 is hermetically fixed, the intake linear drive mechanisms 230 and the air-blocking linear drive mechanism 240 on both sides start to work respectively; the second sealing column 241 at the piston rod end of the air-blocking linear drive mechanism 240 seals the oil return port. While the intake linear drive mechanism 230 seals the periphery of the oil inlet, the intake function of the cooling oil pipe 100 is realized through the intake hole and the middle hole of the first sealing ring 232. It efficiently realizes the reliable sealing of multiple cooling spray holes simultaneously, improving the detection efficiency and reliability.

[0028] In this case, the elastic pressing block 252 is detachably and fixedly arranged on the bottom surface of the pressing plate 253 through a connecting piece; A plurality of fixedly connected cross beams 254 are arranged below the pressing plate 250; a number of adjusting screws 2541 are arranged on the cross beams 254 in a vertically movable connection; The pressing plate 253 is adjustably and fixedly connected with the adjusting screw 2541, and a spring A is arranged between the pressing plate 253 and the cross beam 254.

[0029] As Figure 2-3 shown, during the downward pressing process of the pressing linear drive mechanism 251, the elastic pressing block 252 comes into contact with the surface of the cooling oil pipe 100 in advance, and then overcomes the elastic force of the spring A. After the pressing linear drive mechanism 251 continues to press down to the set position, it stops. The combined structure of multiple cross beams and multiple pressing plates forms a multi-point support system for the cooling oil pipe 100, and the elastic element spring A can evenly distribute the load. The adjustable fixed connection between the pressing plate 253 and the adjusting screw 2541 realizes the function of adjustable pressure of the spring A, dynamically adjusts the pressing force according to the actual working conditions, avoids component damage caused by excessive pressure, and at the same time, the elastic buffering effect of the spring A can effectively absorb the impact load. Further optimization: elastic buffer sleeves 260 fixedly connected with the airtight workbench are respectively arranged on both sides of the support seat 210; The buffer sleeve 260 is provided with a buffer cavity with an open top; The buffer rod 261 is arranged in the buffer cavity in a vertically movable manner, and the top extends out of the top opening of the buffer sleeve through a buffer spring. Through the top opening limit, the buffer rod 261 is limited to move up and down in the buffer cavity; A fixedly connected buffer column 262 is arranged below the pressing plate 250. By pressing down the buffer column 262, the buffer rod 261 is compressed into the buffer sleeve 260 for the first buffer, and then the elastic pressing block 252 contacts the cooling pipe again for the second buffer, effectively solving problems such as easy deformation during the detection of the cooling oil pipe 100.

[0030] Next, refer to Figure 8-13 to describe the forming inspection tool for the cooling oil pipe; Cooling oil pipe forming inspection tool, including: Forming inspection table 310, with an inspection groove adapted to the cooling oil pipe 100 provided on the top; First inspection mechanism 330, several are provided, including: Inspection end table 331, fixedly arranged on the inspection workbench, with an inspection recess provided on the top; after the cooling oil pipe 100 is placed in the inspection groove, determine the position where the branch end of the cooling oil pipe 100 is located. If it is located within the inspection recess of the corresponding inspection end table 331 and meets the set tolerance range, it is qualified; Pressing hinge press 332, fixedly arranged on the side of the inspection end table 331, fixing the cooling oil pipe 100 in the inspection recess through the pressing end, facilitating the implementation of multiple inspection items. The inspection content includes length specification inspection, cooperating with industrial camera vision inspection, etc. In this case, the inspection recess is of a V-shaped structure.

[0031] Second inspection mechanism 320, several are provided, distributed at the end of the cooling oil pipe 100, including inspection pin 321 and inspection seat 322; the inspection seat 322 is fixedly arranged on the inspection workbench; the inspection pin 321 is slidably arranged on the inspection seat 322, and the sliding direction is consistent with the direction of the inspection part of the cooling oil pipe 100. An inspection hole is provided at the end facing the cooling oil pipe 100, and an observation port communicating with the inspection hole is provided at the end of the inspection hole to detect whether the extending position of the inspection end is at the set position.

[0032] In this case, the tail of the inspection pin 221 extends out of the inspection seat 322, facilitating pushing and pulling. The execution of the pushing and pulling actions can be manual or driven by a push-pull cylinder. After the cooling oil pipe 100 is placed in the inspection groove, the measurement of the length of the corresponding end of the cooling oil pipe 100 is realized by pushing in multiple inspection pins 321.

[0033] Hole position inspection mechanism 340, several are provided, including: Hole position fixed arm 341, fixedly arranged on the inspection workbench; Hole position rotating arm 342, hinged to the hole position fixed arm 341, and an inspection needle 343 corresponding to the cooling spray holes of the cooling oil pipe 100 is provided on the side facing the cooling oil pipe 100, used for detecting the hole positions of the cooling spray holes.

[0034] The forming inspection table 310 includes: First horizontal inspection table 311, adapted to the cooling oil pipe 100 and fixedly arranged on the inspection workbench; First vertical inspection table 312, adapted to the cooling oil pipe 100, fixedly arranged on the side of the first horizontal inspection table 311. In this case, it is perpendicular to the first horizontal inspection table 311; The second horizontal inspection table 313, which is adapted to the cooling oil pipe 100, is fixedly arranged on one side of the first vertical inspection table 312 and is perpendicular to the first vertical inspection table 312 in this case; The third horizontal inspection table 314, which is adapted to the cooling oil pipe 100, is fixedly arranged on the other side of the first vertical inspection table 312 and is perpendicular to the first vertical inspection table 312 in this case; The fourth horizontal inspection table 315, which is adapted to the cooling oil pipe 100, is fixedly arranged on the side of the third horizontal inspection table 314 and is perpendicular to the first vertical inspection table 312 in this case; The tail inspection table 316, which is adapted to the cooling oil pipe 100, is fixedly arranged on the side of the fourth horizontal inspection table 315.

[0035] A pair of first horizontal inspection tables 311 are spaced and fixedly arranged on the inspection workbench.

[0036] The fourth horizontal inspection table 315 is provided with a notch adapted to the flange 110 of the cooling oil pipe 100.

[0037] The fourth horizontal inspection table 315 includes a left inspection table four 3151 and a right inspection table four 3152 which are spaced apart, and the flange 110 is located in the space between them.

[0038] A flange locking mechanism 400 is provided on the side of the left inspection table four 3151; the flange locking mechanism 400 includes: A flange hinge press 410 is fixedly arranged on the side of the left inspection table four 3151; A limit post 420 is fixedly arranged on the flange hinge press 410, and the left inspection table four 3151 is provided with a limit hole adapted to the limit post 420. The flange 110 is fixed by inserting the limit post 420 into the flange 110.

[0039] The front end of the limit post 420 is conical, which is convenient for efficiently and stably guiding into the flange 110.

[0040] As Figure 6-7 shown, Figure 6 The state is the working state during the airtight inspection of the cooling oil pipe 100; Figure 7 It is the state required for the detection of the formed specification dimensions; Figure 14 For the cooling oil pipe transfer mechanism 500, the cooling oil pipe 100 is transferred from Figure 1 the station to Figure 8 the state; The transfer mechanism 500 includes: A carrying nose tube 510, the front end of which is provided with a tail tube adapted to the cooling oil pipe 100 ( Figure 6a socket hole adapted to the lowermost longitudinal pipe body); an air hole 511 communicating with the socket hole is provided outside the carrying nose tube 510; A turning cylinder 520, the turning plate is fixedly connected to the carrying nose tube 510, and is used for moving the carrying nose tube 510 up and down; A rotating cylinder 530, the rotating part is fixedly connected to the cylinder body of the turning cylinder 520, and is used to realize the 180° turning function of the cooling oil pipe 100; A lifting cylinder 540 is fixedly arranged on a cross linear module (realizing horizontal movement in the transverse and longitudinal directions). The cross linear module is located on the side of the cooling oil pipe forming inspection tool and the cooling oil pipe airtight fixture, and realizes the reciprocating movement of the carrying nose tube 510 between different stations; the piston rod end of the lifting cylinder 540 is fixedly connected to the cylinder body of the rotating cylinder 530.

[0041] First, the socket hole is aligned with the tail pipe of the cooling oil pipe 100 through the lifting cylinder 540, the rotating cylinder 530 and the turning cylinder 520; the carrying nose tube 510 is moved towards the cooling oil pipe 100 by using the cross linear module. After the cooling oil pipe 100 enters the carrying nose tube 510, the air hole 511 sucks air, the lifting cylinder 540 rises to the highest position, the rotating cylinder 530 rotates the cooling oil pipe 100 by 180 degrees. After the rotation is in place, the turning cylinder 520 acts to move the carrying nose tube 510 upward to prevent shaking during transportation and cause the cooling oil pipe to fall.

[0042] After the cross linear module transports the cooling oil pipe 100 to the set position, the cooling oil pipe 100 is lowered to the set height. The cooling oil pipe 100 is placed under the turning cylinder 520, and the distal end is first inserted into the detection groove. At this time, the pressing hinge compressor 332 can be used to press down to fix the front end, and the air hole 511 blows air, and then the carrying nose tube 510 can be withdrawn.

[0043] Regarding the content disclosed in this case, the following points need to be further explained: (1) The attached drawings of the embodiments disclosed in this case only relate to the structures involved in the embodiments disclosed in this case, and other structures can refer to the general design; (2) Without conflict, the embodiments disclosed in this case and the features in the embodiments can be combined with each other to obtain new embodiments; The above is only the specific implementation manner disclosed in this case, but the protection scope of the present disclosure is not limited thereto. The protection scope disclosed in this case shall be subject to the protection scope of the claims.

Claims

1. An automatic test device for a new energy fuel injection pipe, characterized in that, including an airtight fixture for the drive motor cooling oil pipe; The airtight fixture for the drive motor cooling oil pipe includes: a support base (210) with a limit groove adapted to the cooling oil pipe (100) provided at the top; a plurality of elastic sealing tile gaskets (220) respectively fixedly arranged in the limit groove and corresponding to the cooling spray holes of the cooling oil pipe (100); both ends of the elastic sealing tile gasket (220) respectively climb up to the top surface of the support base (210); an air inlet linear drive mechanism (230) fixedly arranged at the oil inlet of the cooling oil pipe (100), with an air inlet column (231) provided at the piston rod end thereof, and an air inlet hole connected to the air source provided at the end face of the air inlet column (231); a first sealing ring (232) is fixedly connected to the air inlet hole; a gas blocking linear drive mechanism (240) fixedly arranged at the oil return port of the cooling oil pipe (100), with a second sealing column (241) fixedly connected to the piston rod end thereof; a pressing plate (250) moving up and down above the support base (210) through a pressing linear drive mechanism (251), and a plurality of elastic pressing blocks (252) for pressing the cooling oil pipe (100) are provided at the bottom.

2. The automatic test equipment for a new energy fuel injection pipe according to claim 1, characterized in that A plurality of fixedly connected limit blocks (211) are provided on the top surface of the support base (210).

3. The automatic test equipment for a new energy fuel injection pipe according to claim 1, characterized in that, The support base (210) includes: a first transverse base (212) detachably arranged on the top surface of the airtight workbench; a second transverse base (213) detachably arranged on the top surface of the airtight workbench and located at the side of the first transverse base (212); a third transverse base (214) detachably arranged on the top surface of the airtight workbench and located at the side of the first transverse base (212), and having a spacing from the second transverse base (213); a fourth transverse base (215) detachably arranged on the top surface of the airtight workbench and located at the side of the third transverse base (214); a middle longitudinal base (216) detachably arranged on the top surface of the airtight workbench and located between the second transverse base (213) and the third transverse base (214); a tail longitudinal base (217) detachably arranged on the top surface of the airtight workbench and located at the side of the fourth transverse base (215).

4. The automatic test equipment for a new energy fuel injection pipe according to claim 3, characterized in that, An installation notch adapted to the tail longitudinal base (217) is provided at the side of the fourth transverse base (215).

5. The automatic test equipment for a new energy fuel injection pipe according to claim 3, characterized in that, The top surface of the tail longitudinal base (217) is an inclined surface.

6. The automatic test equipment for a new energy fuel injection pipe according to claim 1, characterized in that, The air inlet linear drive mechanism (230) includes an air inlet cylinder, an air inlet oil cylinder or an air inlet electric push rod.

7. The automatic test equipment for a new energy fuel injection pipe according to claim 1, characterized in that, The gas blocking linear drive mechanism (240) includes a gas blocking cylinder, a gas blocking oil cylinder or a gas blocking electric push rod.

8. An automatic test device for a new energy fuel injection pipe according to claim 1, characterized in that, The pressing linear drive mechanism (251) includes a pressing cylinder, a pressing oil cylinder or a pressing electric push rod.

9. The automatic test equipment for a new energy fuel injection pipe according to claim 1, wherein The pressing plate (250) slides up and down above the support base (210) through a pair of guiding columns.

10. The automatic test equipment for a new energy fuel injection pipe according to claim 1, characterized in that, The elastic pressing block (252) is detachably and fixedly arranged at the bottom surface of the pressing plate (253) through a connecting member; A plurality of fixedly connected cross beams (254) are provided below the pressing plate (250); a plurality of adjusting screws (2541) are movably connected up and down on the cross beam (254); The pressing plate (253) is fixedly connected to the adjusting screw rod (2541), and a spring A is provided between the pressing plate and the cross beam (254).

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