Gauge for cooling oil pipe of oil nozzle

Abstract

The utility model relates to an oil nozzle cooling oil pipe testing fixture which comprises a testing fixture bottom plate, the upper end of the testing fixture bottom plate is provided with a substrate, the corner of the left front part of the substrate is provided with a first gap, and the upper end of the testing fixture bottom plate is provided with a first calibration block which slides back and forth in the first gap. A first calibration block is arranged in the upper end of the detection tool bottom plate, a first detection pin sliding transversely is arranged in the first calibration block, a second notch is formed in the corner of the right rear portion of the base plate, a second calibration block sliding transversely is arranged at the position, located in the second notch, of the upper end of the detection tool bottom plate, and a second detection pin sliding front and back is arranged in the second calibration block. An arc-shaped groove is formed in the upper end of the base plate, the two ends of the arc-shaped groove are communicated with the first notch and the second notch respectively, and a pressing device is installed at the position, behind the arc-shaped groove, of the upper end of the base plate. After the detection tool is popularized and realized, a rapid, efficient and accurate detection mode can be realized, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile piston cooling nozzles, in particular to a nozzle cooling oil pipe inspection tool. Background Art

[0002] As engine performance continues to improve, the thermal load on the piston assembly increases. To prevent engine piston assembly failure due to high temperature, piston cooling nozzles are often used to spray cooling oil onto the piston to cool and lubricate the piston.

[0003] The nozzle cooling oil pipe 6 is an important component connecting the piston cooling nozzle. Figure 7 As shown, the nozzle cooling oil pipe 6 is an arc-shaped bent pipe structure, and the overall length and two pipe openings of the nozzle cooling oil pipe 6 need to be inspected. The original inspection method is three-coordinate, which is slow, inefficient, and has high inspection costs. There is currently no special inspection fixture. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a fuel injector cooling oil pipe inspection tool. After the inspection tool is popularized and implemented, a fast, efficient and accurate inspection method can be achieved, thereby reducing costs.

[0005] The technical solution adopted by the utility model to solve its technical problems is as follows: a fuel injector cooling oil pipe inspection fixture is provided, including a inspection fixture bottom plate, a base plate is installed on the upper end of the inspection fixture bottom plate, a first notch is provided at the left front corner of the base plate, a calibration block 1 that slides back and forth is installed in the first notch on the upper end of the inspection fixture bottom plate, a first detection pin that slides laterally is installed inside the calibration block 1, a second notch is provided at the right rear corner of the base plate, a calibration block 2 that slides laterally is installed in the second notch on the upper end of the inspection fixture bottom plate, a second detection pin that slides back and forth is installed inside the calibration block 2, an arc-shaped groove is provided on the upper end of the base plate, two ends of the arc-shaped groove are respectively connected to the first notch and the second notch, and a clamping device is installed on the upper end of the base plate behind the arc-shaped groove.

[0006] As a supplement to the technical solution of the present invention, a hanging hole is provided at one of the corners of the upper end of the bottom plate of the inspection tool.

[0007] As a supplement to the technical solution described in the present invention, two positioning columns are staggeredly arranged on the upper end of the inspection tool base plate, and positioning holes that cooperate with the positioning columns are opened at the bottom of the base plate. The base plate and the inspection tool base plate are connected and fixed by fasteners.

[0008] As a supplement to the technical solution described in the present invention, the bottom of the calibration block one and the bottom of the calibration block two are both installed with an inverted T-shaped guide part, the upper end of the inspection tool base plate is located below the first notch and is provided with a longitudinal guide rail, and the upper end of the inspection tool base plate is located below the second notch and is provided with a transverse guide rail, and the two guide parts slide back and forth along the longitudinal guide rail and the transverse guide rail respectively.

[0009] As a supplement to the technical solution described in the present invention, the clamping device includes a quick clamp and a pressure block. A pressure block is installed at the bottom of the clamping end of the quick clamp, and a pseudo-shaped groove is provided at the bottom of the pressure block.

[0010] As a supplement to the technical solution described in the utility model, the clamping end of the quick clamp is provided with a long through hole, in which a fastener connected to the pressure block is installed.

[0011] As a supplement to the technical solution described in the present invention, two limiting bosses are symmetrically arranged on both sides of each port of the arc-shaped groove.

[0012] Beneficial Effects: This utility model relates to a nozzle cooling oil pipe inspection fixture that can detect the overall length and two pipe openings of the nozzle cooling oil pipe, greatly improving the qualified rate of products leaving the factory. This utility model improves inspection efficiency, ensures inspection consistency, controls product quality, and prevents the outflow of defective products. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the utility model without the product installed;

[0014] Figure 2 This is a structural diagram of the utility model when the product is installed;

[0015] Figure 3 This is a schematic diagram of the structure of the utility model after removing the substrate;

[0016] Figure 4 It is a structural schematic diagram of the substrate described in the utility model;

[0017] Figure 5 It is a schematic structural diagram of the substrate of the present invention at different angles;

[0018] Figure 6 It is a structural schematic diagram of the pressing device described in the utility model;

[0019] Figure 7 It is a structural diagram of the detection product of the utility model.

[0020] Illustration: 1. Inspection fixture base plate, 2. Base plate, 3. Arc-shaped groove, 4. Calibration block 1, 5. Clamping device, 6. Injector nozzle cooling oil pipe, 7. First detection pin, 8. Hanging hole, 9. Positioning column, 10. Fastener, 11. Calibration block 2, 12. Second detection pin, 13. First notch, 14. Second notch, 15. Positioning hole, 16. Guide part, 17. Longitudinal guide rail, 18. Transverse guide rail, 19. Quick clamp, 20. Pressing block, 21. Contoured groove, 22. Long through hole, 23. Limiting boss. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to specific embodiments. It should be understood that these embodiments are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the contents of this invention, those skilled in the art may make various changes or modifications to the present invention, and that such equivalents also fall within the scope of the claims appended hereto.

[0022] The embodiment of the utility model relates to a nozzle cooling oil pipe inspection tool, such as Figure 1-7 As shown, it includes a gauge base plate 1, a base plate 2 is installed on the upper end of the gauge base plate 1, a first notch 13 is provided at the left front corner of the base plate 2, the upper end of the gauge base plate 1 is located in the first notch 13 and a calibration block 4 that slides back and forth is installed, and a first detection pin 7 that slides laterally is installed inside the calibration block 4, a second notch 14 is provided at the right rear corner of the base plate 2, the upper end of the gauge base plate 1 is located in the second notch 14 and a calibration block 2 that slides laterally is installed, and a second detection pin 12 that slides back and forth is installed inside the calibration block 2 11, an arc-shaped groove 3 is provided on the upper end of the base plate 2, the two ends of the arc-shaped groove 3 are respectively connected to the first notch 13 and the second notch 14, two limiting bosses 23 are symmetrically arranged on both sides of each port of the arc-shaped groove 3, and the upper end of the base plate 2 is located behind the arc-shaped groove 3 and a clamping device 5 is installed.

[0023] A hanging hole 8 is provided at one corner of the upper end of the inspection tool base plate 1 , and the hanging hole 8 can be used to hang objects such as a certificate of conformity and an inspection tool plate.

[0024] Two positioning posts 9 are staggeredly arranged at the upper end of the inspection tool base plate 1, and a positioning hole 15 is opened at the bottom of the substrate 2 to cooperate with the positioning post 9. The positioning hole 15 can be a through hole or a blind hole. When installing the substrate 2, the two positioning holes 15 are first aligned with the positioning posts 9 at the upper end of the inspection tool base plate 1 to realize the positioning of the substrate 2. After that, the substrate 2 and the inspection tool base plate 1 are connected and fixed by fasteners 10.

[0025] The bottom of the calibration block 1 4 and the bottom of the calibration block 2 11 are both equipped with an inverted T-shaped guide portion 16. The upper end of the gauge base plate 1 is located below the first notch 13 and is provided with a longitudinal guide rail 17. The upper end of the gauge base plate 1 is located below the second notch 14 and is provided with a transverse guide rail 18. The two guide portions 16 slide back and forth along the longitudinal guide rail 17 and the transverse guide rail 18 respectively to ensure sliding stability.

[0026] The clamping device 5 includes a quick clamp 19 and a pressure block 20. A pressure block 20 is installed at the bottom of the clamping end of the quick clamp 19, and a pseudo-shaped groove 21 is opened at the bottom of the pressure block 20; the quick clamp is a new type of manual clamp product that can accurately position and quickly clamp. The quick clamp 19 is an existing component purchased directly on the market. The quick clamp 19 controls the pressure block 20 to press down the product; the pseudo-shaped groove 21 fits the contour of the upper part of the injector cooling oil pipe 6 to ensure the stability of the clamping.

[0027] The clamping end of the quick clamp 19 is provided with a long through hole 22, in which a fastener 10 connected to the pressure block 20 is installed; the long through hole 22 cooperates with the fastener 10 to adjust the position of the pressure block 20 within a certain range to ensure the accuracy of the product position.

[0028] In the initial state, the calibration block 1 4 seals one side of the arc-shaped groove 3, and the calibration block 2 11 does not seal the other side of the arc-shaped groove 3. First, the nozzle cooling oil pipe 6 is placed in the arc-shaped groove 3 at the upper end of the base plate 2, and the left end of the nozzle cooling oil pipe 6 relies on one side of the calibration block 1 4. The two pipe openings of the nozzle cooling oil pipe 6 are limited by the limiting bosses 23 on both sides of each port of the arc-shaped groove 3. The clamping device 5 is started, and the pressure block 20 is controlled to press down the upper part of the nozzle cooling oil pipe 6 through the quick clamp 19. Then the calibration block 2 1 is controlled to slide horizontally. If the calibration block 2 1 can seal the other side of the arc-shaped groove 3, the overall length of the nozzle cooling oil pipe 6 meets the requirements and is qualified. Otherwise, it is unqualified. Then control the first detection pin 7 to slide horizontally, so that the right end of the first detection pin 7 passes through the calibration block 4 and is inserted into the left pipe opening of the injector cooling oil pipe 6. If the right end of the first detection pin 7 can be inserted into the left pipe opening of the injector cooling oil pipe 6, the left pipe opening of the injector cooling oil pipe 6 is qualified, otherwise, it is unqualified; then control the second detection pin 12 to slide back and forth, so that the front end of the second detection pin 12 passes through the calibration block 11 and is inserted into the right pipe opening of the injector cooling oil pipe 6. If the front end of the second detection pin 12 can be inserted into the right pipe opening of the injector cooling oil pipe 6, the right pipe opening of the injector cooling oil pipe 6 is qualified, otherwise, it is unqualified; all of them need to be qualified to represent the injector cooling oil pipe 6 as a qualified product.

[0029] After the product inspection is completed, the first inspection pin 7 and the second inspection pin 12 are reset, the calibration block 1 4 is slid forward, and the calibration block 2 11 is slid to the right, so that the pipe openings at both ends of the injector cooling oil pipe 6 are exposed, making it convenient to remove the injector cooling oil pipe 6.

[0030] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0031] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0032] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0033] The above is a detailed introduction to the fuel injector cooling oil pipe inspection fixture provided by the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only intended to help understand the method and core ideas of the present application. At the same time, for those skilled in the art, according to the ideas of the present application, there may be changes in the specific implementation methods and application scope. In summary, the contents of this specification should not be understood as limiting the present application.

Claims

1. A nozzle cooling oil pipe inspection fixture, comprising a fixture base plate (1), characterized in that: The upper end of the inspection tool base plate (1) is provided with a base plate (2), and a first notch (13) is provided at the left front corner of the base plate (2). The upper end of the inspection tool base plate (1) is provided with a calibration block (4) that slides forward and backward, located in the first notch (13), and a first detection pin (7) that slides laterally is installed inside the calibration block (4). A second notch (14) is provided at the right rear corner of the base plate (2), and a calibration block (11) that slides laterally is installed at the upper end of the inspection tool base plate (1), located in the second notch (14), and a second detection pin (12) that slides forward and backward is installed inside the calibration block (11). The upper end of the base plate (2) is provided with an arc-shaped groove (3), and the two ends of the arc-shaped groove (3) are respectively connected to the first notch (13) and the second notch (14). The upper end of the base plate (2) is provided with a clamping device (5) located behind the arc-shaped groove (3).

2. The fuel injector cooling oil pipe inspection fixture according to claim 1, characterized in that: A hanging hole (8) is provided at one corner of the upper end of the inspection tool base plate (1).

3. The fuel injector cooling oil pipe inspection fixture according to claim 1, characterized in that: Two positioning columns (9) are staggeredly arranged on the upper end of the inspection tool base plate (1), and a positioning hole (15) is provided at the bottom of the base plate (2) to cooperate with the positioning columns (9). The base plate (2) and the inspection tool base plate (1) are connected and fixed by fasteners (10).

4. The fuel injector cooling oil pipe inspection fixture according to claim 1, characterized in that: The bottom of the calibration block 1 (4) and the bottom of the calibration block 2 (11) are both installed with an inverted T-shaped guide portion (16), the upper end of the inspection tool base plate (1) is located below the first notch (13) and is provided with a longitudinal guide rail (17), and the upper end of the inspection tool base plate (1) is located below the second notch (14) and is provided with a transverse guide rail (18), and the two guide portions (16) slide back and forth along the longitudinal guide rail (17) and the transverse guide rail (18) respectively.

5. The fuel injector cooling oil pipe inspection fixture according to claim 1, characterized in that: The clamping device (5) comprises a quick clamp (19) and a pressure block (20). A pressure block (20) is installed at the bottom of the clamping end of the quick clamp (19), and a shaped groove (21) is provided at the bottom of the pressure block (20).

6. The fuel injector cooling oil pipe inspection fixture according to claim 5, characterized in that: The clamping end of the quick clamp (19) is provided with a long through hole (22), and a fastener (10) connected to the pressing block (20) is installed in the long through hole (22).

7. The fuel injector cooling oil pipe inspection fixture according to claim 1, characterized in that: Two limiting bosses (23) are symmetrically arranged on both sides of each port of the arc-shaped groove (3).

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