阅读说明：本技术 汽车油箱油管总成的检具 (Checking fixture for oil pipe assembly of automobile oil tank ) 是由 李金梅 田峰 李文萍 葛运朋 于 2021-07-06 设计创作，主要内容包括：本发明提供一种能够同时检测油箱和油管且检测精度高的汽车油箱油管总成的检具,底板、立柱以及翻转框架围合成油箱的检测区域,油箱检测区域内的底板上设置有与油箱上的孔位置对应的定位柱,翻转框架绕着铰接轴转动至油箱上方且框面位于水平面内的检测位或远离油箱上方的避让位,支撑柱的上端固定有安装平板,安装平板上设置有与安装板上的安装孔位置对应的油管定位柱和用于检测端部接头位置的端口检测单元。检具既包括油箱检测区域和油管检测区域,能够同时对油箱和油管分别检测,又能检测到两者之间的配合关系,还能检测处油管的整体走向以及与车身安装部位是否合格,从而保证油箱带油管总成装配在整车上时的整体公差。(The invention provides a checking fixture for an automobile oil tank oil pipe assembly, which can simultaneously detect an oil tank and an oil pipe and has high detection precision. The checking fixture comprises an oil tank detection area and an oil pipe detection area, can be used for simultaneously and respectively detecting an oil tank and an oil pipe, can also be used for detecting the matching relation between the oil tank and the oil pipe, and can also be used for detecting the integral trend of the oil pipe and whether the oil pipe is qualified with the installation part of a vehicle body, so that the integral tolerance of the oil tank with the oil pipe assembly assembled on the whole vehicle is ensured.)

1. The utility model provides an utensil is examined to car oil tank oil pipe assembly, be provided with oil tank detection area territory and oil pipe detection area territory on bottom plate (10), oil tank detection area territory includes that many enclose stand (31) of establishing, the upper end of stand (31) articulates there is upset frame (32), the axle core of articulated shaft (33) is located the horizontal direction and arranges, bottom plate (10), stand (31) and upset frame (32) enclose the detection area territory of synthetic oil tank (1) jointly, be provided with reference column (20) that correspond with the hole position on oil tank (1) on bottom plate (10) in the oil tank detection area territory, upset frame (32) rotate round articulated shaft (33) to oil tank (1) top and frame face are located the detection position in the horizontal plane or keep away from the position of dodging of oil tank (1) top, its characterized in that: the oil pipe detection area comprises a supporting column (41), an installation flat plate (42) is fixed at the upper end of the supporting column (41), and an oil pipe positioning column (43) corresponding to the installation hole on the installation plate (7) and a port detection unit (44) used for detecting the position of the end interface (8) are arranged on the installation flat plate (42).

2. The gauge for the oil tank and pipe assembly of the automobile according to claim 1, wherein: the port detection unit (44) comprises an installation column (441), the upper end of the installation column (441) is obliquely arranged, a through hole is formed in the inclined surface, a detection pin (442) penetrates through the through hole, the end part of the detection pin (442) is connected with a port detection block (443), the port detection block (443) is integrally U-shaped, the opening of the port detection block (443) faces the end interface (8), the width of the opening of the port detection block (443) is matched with the pipe diameter of the end interface (8), a spring (444) is sleeved on the pin body of the detection pin (442) between the pin head and the inclined surface, the spring (444) provides elastic force to drive the detection pin (442) to move towards the direction far away from the end interface (8), and external force overcomes the elastic force of the spring (444) and pushes the port detection block (443) to be inserted and sleeved on the end interface (8).

3. The gauge for the oil tank and pipe assembly of the automobile according to claim 2, wherein: the installation flat plate (42) is arranged in a staggered manner, two installation flat plates (42) located above correspond to end connectors (8) and installation plates (7), the installation flat plate (42) located below corresponds to bending positions of the oil pipes (2), the two installation flat plates (42) are provided with positioning clamping grooves (45) used for clamping the oil pipes (2), the installation flat plate (42) located above is further provided with telescopic clamping blocks (46), the telescopic clamping blocks (46) driven by external force are clamped on the oil pipes (2) or are retracted, and the installation flat plate (42) is further provided with overturning clamps (47).

4. The gauge for the oil tank and pipe assembly of the automobile according to claim 1, wherein: the bottom plate (10) is provided with an upright rod (51) at a position corresponding to the strap slot (5) on the lower surface of the oil tank (1), the upper end of the upright rod (51) is connected with a clamping plate (52), the upper end face of the clamping plate (52) is positioned in an arc shape matched with the profile of the strap slot (5), and the clamping plate (52) and the strap slot (5) are correspondingly provided with 2 groups.

5. The gauge for the oil tank and pipe assembly of the automobile according to claim 4, wherein: still be provided with riser (53) on bottom plate (10) between two cardboard (52), the upper end slope of riser (53) is arranged, the through-hole has been seted up on this inclined plane, it passes through the through-hole to detect round pin pipe (54), the cover is equipped with reset spring (55) on the pipe shaft of detecting round pin pipe (54) between round pin head and the inclined plane, reset spring (55) provide elasticity and order about detecting round pin pipe (54) to the direction removal of keeping away from reference column (6), external force overcomes the elasticity drive of reset spring (55) and detects round pin pipe (54) plug bush on reference column (6).

6. The gauge for the oil tank and pipe assembly of the automobile according to claim 1, wherein: the lower frame edge of the turnover frame (32) is provided with a positioning pin (321) at a position corresponding to the positioning hole (3) in a downward protruding mode, the lower frame edge of the turnover frame (32) is further provided with a pressing surface (322), and when the position is detected, the pressing surface (322) presses the upper surface of the oil tank (1).

7. The gauge for the oil tank and pipe assembly of the automobile according to claim 6, wherein: the position department that corresponds with interface (4) is provided with installation piece (323) on upset frame (32), the through-hole has been seted up on installation piece (323), bolt (324) pass in the through-hole, the lower extreme of bolt (324) is fixed with interface detection circle (325), interface detection circle (325) are whole to be hemisphere clamshell form and opening and arrange down, the opening is anastomotic with the excircle profile of interface (4), the cover is equipped with pressure spring (326) on the round pin body of bolt (324) between round pin head and installation piece (323), pressure spring (326) provide elasticity and order about interface detection circle (325) to the direction removal of keeping away from interface (4), external force overcomes the elasticity of pressure spring (326) and promotes interface detection circle (325) shroud on the excircle of interface (4).

8. The gauge for the oil tank and pipe assembly of the automobile according to claim 7, wherein: the turnover frame (32) is provided with a telescopic pin (327) downwards at a position corresponding to the oil passing hole (9), the lower end of the telescopic pin (327) is connected with a cross-shaped detection frame (328), the diameter of the circumscribed circle of the cross-shaped detection frame (328) is matched with the aperture of the oil passing hole (9), and the external force drives the telescopic pin (327) to move downwards and drives the cross-shaped detection frame (328) to be inserted into the oil passing hole (9).

9. The gauge for the oil tank and pipe assembly of the automobile according to claim 1, wherein: the four upright columns (31) are arranged, two of the upright columns (31) are hinged with the turnover frame (32), the upper ends of the other two upright columns (31) are provided with limit stops (311), and when the position is detected, the limit stops (311) abut against the turnover frame (32) and limit the rotation of the turnover frame (32).

10. The gauge for the oil tank and pipe assembly of the automobile according to claim 1, wherein: the bottom plate (10) is also provided with a telescopic detection pin (60) for detecting the profile of the oil tank (1).

Technical Field

The invention relates to the technical field of automobile fuel tanks, in particular to a gauge for an automobile fuel tank fuel pipe assembly.

Background

The automobile oil tank is a key part on the whole automobile, has high requirements on safety and sealing performance, and has a structure shown in fig. 1, and comprises an oil tank 1 and an oil pipe 2, wherein the overall external dimension of the oil tank 1 and the position degrees of a positioning hole 3, an oil pipe interface 4 and an oil through hole 9 on the upper surface of the oil tank 1 all relate to the assembly tolerance of the oil tank 1, the position degrees of a binding belt groove 5 and a positioning column 6 on the lower surface of the oil tank 1 relate to the assembly tolerance of the oil tank 1, and the running route of the oil pipe 2, the position of an installation plate 7 and the position and orientation of an end interface 8 all relate to the assembly tolerance of the oil pipe 2.

In order to solve the above problems, a chinese patent entitled "testing tool for welding assembly of fuel tank of automobile" (grant publication No. CN201787883U) discloses the following technical solutions: the checking fixture for the welding assembly of the automobile oil tank comprises a bottom plate, a turning block support and an air spring, wherein the turning block is arranged in parallel with the bottom plate through the turning block support, and the turning of the turning block is realized through the air spring; a plurality of hanging detection pieces are installed on the same turnover block and used for detecting the position degrees of a plurality of oil pipes of an automobile oil tank welding assembly. In the scheme, the detection is single, and the vertical detection block and the hanging detection block can only roughly detect the position of the oil pipe which is connected to the oil tank and is fixed in position, but cannot detect the trend of the oil pipe protruding out of the oil tank and the position degree of the oil pipe at the joint of the oil pipe and the vehicle body, and the positions are just the detection key points of the oil pipe and are related to the integral tolerance of the oil tank with the oil pipe assembly assembled on a whole vehicle.

Disclosure of Invention

The invention aims to provide a gauge for an automobile oil tank and oil pipe assembly, which can simultaneously detect an oil tank and an oil pipe and has high detection precision.

In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides an utensil is examined to car oil tank oil pipe assembly, be provided with oil tank detection area and oil pipe detection area on the bottom plate, oil tank detection area includes that many enclose the stand of establishing, the upper end of stand articulates there is upset frame, the axle core of articulated shaft is located the horizontal direction and arranges, the bottom plate, stand and upset frame enclose synthetic fuel tank's detection area jointly, be provided with the reference column that corresponds with the hole position on the oil tank on the bottom plate in the oil tank detection area, upset frame rotates the detection position that is located the horizontal plane to oil tank top and frame face round the articulated shaft or keeps away from the position of dodging of oil tank top, oil pipe detection area includes the support column, the upper end of support column is fixed with the installation flat board, be provided with the oil pipe reference column that corresponds with the mounting hole position on the mounting board on the installation flat board and be used for detecting the port detecting element of end joint position.

In the scheme, the detection tool comprises an oil tank detection area and an oil pipe detection area, can be used for simultaneously and respectively detecting the oil tank and the oil pipe and can also be used for detecting the matching relationship between the oil tank and the oil pipe, so that the assembly tolerance of the whole oil tank and oil pipe assembly is ensured; meanwhile, the oil pipe positioning column and the port detection unit can detect the whole trend of the oil pipe and whether the oil pipe is qualified with the installation part of the vehicle body, so that the whole tolerance of the oil tank with the oil pipe assembly assembled on the whole vehicle is guaranteed.

Drawings

FIG. 1 is a schematic view of the overall structure of an oil tank assembly with oil pipes;

FIG. 2 is a schematic overall structure diagram of the inspection device;

fig. 3, 4 and 5 are partially enlarged schematic views of fig. 2;

FIG. 6 is a schematic view of the working state of the gauge.

Detailed Description

As shown in fig. 2 and 3, a bottom plate 10 of the checking fixture for the oil pipe assembly of the oil tank of the automobile is provided with an oil tank detection area and an oil pipe detection area, the oil tank detection area comprises a plurality of enclosed upright columns 31, the upper ends of the upright columns 31 are hinged with a turnover frame 32, the shaft core of a hinge shaft 33 is arranged in the horizontal direction, the bottom plate 10, the detection area of synthetic oil tank 1 is enclosed jointly to stand 31 and upset frame 32, be provided with the reference column 20 that corresponds with the hole position on the oil tank 1 on the bottom plate 10 in the oil tank detection area, the upset frame 32 rotates to the detection position of oil tank 1 top and frame level in the horizontal plane or keeps away from the position of dodging above the oil tank 1 round articulated shaft 33, the oil pipe detection area is including support column 41, the upper end of support column 41 is fixed with the installation flat plate 42, be provided with the oil pipe reference column 43 that corresponds with the mounting hole position on the mounting panel 7 on the installation flat plate 42 and be used for detecting the port detecting element 44 of tip interface 8 position. During detection, firstly, the turnover frame 32 rotates around the hinge shaft 33 to an avoidance position far away from the upper part of the oil tank 1, an oil pipe assembly of the oil tank is placed into the detection tool, so that the positioning column 20 corresponding to the hole position on the oil tank 1 is positioned and supported by the positioning column 20, the oil tank 1 is stably positioned on the bottom plate 10, the upright post 31 and the turnover frame 32 jointly enclose a detection area of the oil tank 1, at the moment, the oil pipe 2 is naturally positioned in the oil pipe detection area due to the limitation of the moving direction of the oil pipe 2, then the turnover frame 32 rotates around the hinge shaft 33 to the detection position above the oil tank 1 and the frame surface is positioned in the horizontal plane, at the moment, whether the outline and each position degree of the oil tank 1 are qualified is detected, and whether the positions of the mounting holes on the mounting plate 7 on the oil pipe 2 and the positions of the end interfaces 8 are qualified is detected. In the scheme, the detection tool comprises an oil tank detection area and an oil pipe detection area, can be used for simultaneously and respectively detecting the oil tank 1 and the oil pipe 2, and can also be used for detecting the matching relationship between the oil tank and the oil pipe, so that the assembly tolerance of the whole oil tank and oil pipe assembly is ensured; meanwhile, the arrangement of the oil pipe positioning column 43 and the port detection unit 44 can detect the overall direction of the oil pipe and whether the installation part of the oil pipe and the vehicle body is qualified, so that the overall tolerance of the oil tank with the oil pipe assembly assembled on the whole vehicle is ensured.

The specific structure is as follows: the port detection unit 44 includes an installation post 441, the upper end of the installation post 441 is disposed in an inclined manner, a through hole is formed on the inclined surface, the detection pin 442 passes through the through hole, the end of the detection pin 442 is connected with a port detection block 443, the port detection block 443 is integrally U-shaped and has an opening facing the end interface 8, the width of the opening of the port detection block 443 is matched with the pipe diameter of the end interface 8, a spring 444 is sleeved on the pin body of the detection pin 442 between the head of the pin and the inclined surface, the spring 444 provides elastic force to drive the detection pin 442 to move in a direction away from the end interface 8, and external force overcomes the elastic force of the spring 444 and pushes the port detection block 443 to be inserted and sleeved on the end interface 8. Under normal conditions, due to the elastic force of the spring 444, a gap is formed between the port detection block 443 and the end interface 8, so that the taking and placing operations of the oil pipe 2 are not affected, when detection is needed, the detection pin 442 is pushed forcibly to enable the port detection block 443 to be close to the end interface 8, if the opening of the port detection block 443 can be just clamped on the end interface 8, the position degree of the end interface 8 is qualified, and otherwise, the opening is not qualified.

Because the oil pipe 2 is a bent pipe section with staggered heights, two installation flat plates 42 are arranged in staggered heights, wherein the installation flat plate 42 positioned above corresponds to the end connector 8 and the installation plate 7 in position, the installation flat plate 42 positioned below corresponds to the bending part of the oil pipe 2 and is used for detecting the position degree of the oil pipe 2 at the bending part to ensure that the oil pipe at the bending part does not rub or interfere with peripheral parts on the vehicle body, the two installation flat plates 42 are both provided with positioning clamping grooves 45 used for clamping the oil pipe 2, the positioning clamping grooves 45 are also used for simulating fixing clamps used for fixing the oil pipe 2 on the vehicle body, and the detection on the installation plate 7 and the end connector 8 is significant only if the positions are fixed; because oil pipe 2 comprises two thick pipelines, one thin pipeline and the other thick pipeline, and mounting panel 7 and end connector 8 are all arranged on the thick pipeline, the position degree of the thin pipeline needs to be detected, here, a telescopic fixture block 46 is arranged on the mounting panel 42 above, and the telescopic fixture block 46 is driven by external force to be clamped on oil pipe 2 or retract to avoid the position so as to detect the position degree of the thin pipeline. The mounting plate 42 is also provided with a toggle clamp 47 for clamping the tubing 2.

For the oil tank 1, the key component for fixing the oil tank 1 on the vehicle body is the fixing strap, so the position degree of the strap slot 5 for installing the strap on the oil tank 1 is also very important, the bottom plate 10 is provided with an upright rod 51 corresponding to the strap slot 5 on the lower surface of the oil tank 1, the upper end of the upright rod 51 is connected with a clamping plate 52, the upper end surface of the clamping plate 52 is positioned in an arc shape matched with the contour of the strap slot 5, and as the number of the strap slots 5 is two, 2 sets of clamping plates 52 and the strap slot 5 are correspondingly arranged.

As shown in fig. 2, a vertical plate 53 is further disposed on the bottom plate 10 between the two clamping plates 52, the upper end of the vertical plate 53 is disposed in an inclined manner, a through hole is formed in the inclined surface, the detection pin tube 54 passes through the through hole, a return spring 55 is sleeved on the tube body of the detection pin tube 54 between the pin head and the inclined surface, the return spring 55 provides elastic force to drive the detection pin tube 54 to move in a direction away from the positioning column 6, and the external force overcomes the elastic force of the return spring 55 to drive the detection pin tube 54 to be inserted and sleeved on the positioning column 6. Under normal conditions, due to the elastic force of the return spring 55, the end part of the detection pin pipe 54 is arranged at a distance from the positioning column 6 so as to prevent the influence on taking and placing the oil tank 1, when detection is needed, the detection pin pipe 54 is pushed to be close to the positioning column 6, if the detection pin pipe 54 can be just inserted and sleeved on the positioning column 6, the position degree of the positioning column 6 is qualified, otherwise, the position degree is unqualified.

For the detection of the upper surface of the oil tank 1, a positioning pin 321 is convexly extended downwards at a position corresponding to the positioning hole 3 on the lower frame edge of the turnover frame 32, a pressing surface 322 is further arranged on the lower frame edge of the turnover frame 32, and when the position is detected, the pressing surface 322 presses the upper surface of the oil tank 1. The lower surface of the oil tank 1 is positioned and supported by the positioning column 20, the upper surface is positioned by the positioning pin 321 and pressed by the pressing surface 322, the position is stable, and the detection precision of each part is ensured.

Further, a mounting block 323 is arranged at a position, corresponding to the interface 4, of the turnover frame 32, a through hole is formed in the mounting block 323, the bolt 324 penetrates through the through hole, an interface detection ring 325 is fixed at the lower end of the bolt 324, the interface detection ring 325 is integrally in a hemispherical shell shape, the opening of the interface detection ring is arranged downwards, the opening of the interface detection ring is matched with the outline of the outer circle of the interface 4, a pressure spring 326 is sleeved on a pin body of the bolt 324 between a pin head and the mounting block 323, the pressure spring 326 provides elastic force to drive the interface detection ring 325 to move towards the direction far away from the interface 4, and the external force overcomes the elastic force of the pressure spring 326 and pushes the interface detection ring 325 to cover the outer circle of the interface 4. Under normal conditions, because the elastic force effect of pressure spring 326, there is certain distance between interface detection circle 325 and interface 4, when needs detect, pushes down bolt 324 again for interface detection circle 325 shroud is on the excircle of interface 4.

In order to detect whether the position of the oil passing hole 9 is qualified, a telescopic pin 327 is downwards arranged at the position, corresponding to the oil passing hole 9, on the turnover frame 32, the lower end of the telescopic pin 327 is connected with a cross-shaped detection frame 328, the diameter of a circumscribed circle of the cross-shaped detection frame 328 is matched with the aperture of the oil passing hole 9, and the telescopic pin 327 is driven by external force to downwards move and drive the cross-shaped detection frame 328 to be inserted into the oil passing hole 9.

Furthermore, four upright columns 31 are arranged, two of the upright columns 31 are hinged to the turnover frame 32, the upper ends of the other two upright columns 31 are provided with limit stops 311, and when the position is detected, the limit stops 311 abut against the turnover frame 32 and limit the rotation of the turnover frame 32.

The bottom plate 10 is further provided with a telescopic detection pin 60 for detecting the contour of the fuel tank 1, so as to detect whether the peripheral contour of the fuel tank 1 is qualified.