Deformation detection device for support part of oil rail forge piece

Abstract

The utility model relates to the technical field of automobile engine part detection, and especially relates to an oil rail forge piece support part deformation detection device. Comprising a gauge stand, a stop block, two dial gauges and a positioning bolt. A dial indicator mounting hole, a stop block mounting groove, a first detection positioning surface and a second detection positioning surface are distributed on the gauge stand; the dial indicator mounting hole is matched and fixed with a dial indicator, and the stop block mounting groove is matched and fixed with the stop block; a positioning bolt hole and a counter bore are formed in the check block, the counter bore is connected with the gauge stand, and the positioning bolt hole is matched with and fixes the structure of the positioning bolt, so that the effects that the deformation of the oil rail forge piece support part can be detected in batches, the operation is convenient, and the detection tool is simple in structure, easy to manufacture and low in cost are achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive engine component testing, and in particular to a device for detecting the deformation of the oil rail forging bracket. Background Technology

[0002] The high-pressure fuel rail is a critical component of an automotive engine, serving to store and distribute fuel. The main forming process for the fuel rail involves integral forging of the blank, followed by machining of the internal holes. To ensure that the machining allowance and the positional accuracy of the holes after machining meet requirements, the relevant dimensions of the forging need to be controlled. The bracket is a part of the high-pressure fuel rail prone to deformation, requiring inspection of its deformation. Current technology primarily uses coordinate measuring machines (CMMs) or 3D scanning to detect deformation in the fuel rail forging bracket area, which suffers from long inspection cycles, high costs, and the inability to achieve 100% batch inspection. Utility Model Content

[0003] The purpose of this invention is to provide a deformation detection device for the support part of oil rail forgings, which addresses the shortcomings of existing technologies. This device enables batch detection of deformation in the support part of oil rail forgings, is easy to operate, and has a simple and easy-to-manufacture fixture with low cost.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: it includes a dial indicator base, a stop block, two dial indicators, and positioning bolts; the dial indicator base is provided with dial indicator mounting holes, a stop block mounting groove, a first detection positioning surface, and a second detection positioning surface; the dial indicator mounting holes cooperate to fix the dial indicator, and the stop block mounting groove cooperates to fix the stop block; the stop block is provided with positioning bolt holes and countersunk holes, the countersunk holes are connected to the dial indicator base, and the positioning bolt holes cooperate to fix the positioning bolts.

[0005] Furthermore, the base body is provided with a lightweight hollow structure.

[0006] Furthermore, each side of the dial indicator mounting hole is provided with a dial indicator fixing threaded hole, which is used to fix the dial indicator.

[0007] Furthermore, a stop block fixing threaded hole is provided at the stop block mounting groove, and the stop block is fixed in place by the stop block fixing threaded hole.

[0008] Furthermore, the stop is configured as an L-shape.

[0009] Furthermore, the positioning bolt is an M3×10 internal hex bolt, used for left and right positioning during oil rail inspection.

[0010] Furthermore, the base is made of Cr12 and is formed by wire cutting, with a heat treatment hardness of HRC58-62.

[0011] Furthermore, the stop block is made of Cr12 with a heat treatment hardness of HRC58-62.

[0012] The instrument comprises a base, a stop block, two dial indicators, and positioning bolts. The base has dial indicator mounting holes, a stop block mounting groove, a first detection positioning surface, and a second detection positioning surface. The dial indicator mounting holes are used to fix the dial indicator, and the stop block mounting groove is used to fix the stop block. The stop block has positioning bolt holes and countersunk holes. The countersunk holes connect to the base, and the positioning bolt holes are used to fix the positioning bolts. This structure enables batch testing of the deformation of the oil rail forging support portion, is easy to operate, and has a simple, easy-to-manufacture, and low-cost fixture structure. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the deformation detection device for the oil rail forging bracket of this utility model.

[0015] Figure 2 This is a schematic diagram of the positioning surface of the inspection fixture of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the base of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the base of this utility model from another perspective;

[0018] Figure 5 This is a schematic diagram of the structure of the stop block of this utility model;

[0019] Figure 6 This is a schematic diagram of the stop block from another perspective of the present invention;

[0020] Figure label:

[0021] Dial indicator base 1, dial indicator mounting hole 1-1, stop block mounting groove 1-2, first detection positioning surface 1-3, second detection positioning surface 1-4, dial indicator fixing threaded hole 1-5, stop block fixing threaded hole 1-6, stop block 2, positioning bolt hole 2-1, countersunk hole 2-2, dial indicator 3, positioning bolt 4. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] In the description of this utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inner", and "outer" are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] A device for detecting the deformation of a forged oil rail support, such as... Figures 1-5 As shown, the device includes a base 1, a stop block 2, two dial indicators 3, and a positioning bolt 4. The base 1 is provided with dial indicator mounting holes 1-1, stop block mounting grooves 1-2, a first detection positioning surface 1-3, and a second detection positioning surface 1-4. The dial indicator mounting holes 1-1 are used to fix the dial indicator, and the stop block mounting grooves 1-2 are used to fix the stop block 2. The stop block 2 is provided with positioning bolt holes 2-1 and countersunk holes 2-2. The countersunk holes 2-2 are connected to the base, and the positioning bolt holes 2-1 are used to fix the positioning bolt 4.

[0025] Specifically, by integrating the first detection positioning surface 1-3 and the second detection positioning surface 1-4 on the base 1, the flatness and perpendicularity of the support component can be controlled simultaneously, providing a stable and accurate benchmark for detection. The dial indicator mounting hole 1-1 and the stop block mounting groove 1-2 on the base 1 allow the dial indicator 3 and the stop block 2 to be installed and adjusted quickly and accurately, improving the adaptability and flexibility of the device. The stop block 2 is connected to the base 1 through the countersunk hole 2-2 and is fixed with the positioning bolt 4 through the positioning bolt hole 2-1. This design ensures the stability and repeatability of the stop block 2 during the detection process. The preload of the positioning bolt 4 can be precisely controlled, ensuring the rigidity of the clamping and avoiding deformation of the forging due to excessive tightness. Using two dial indicators 3 for differential measurement can more accurately detect the deformation of the support. This design effectively eliminates the influence of external factors such as temperature drift and mechanical vibration on the measurement results, improving the accuracy of the inspection. This solution can significantly shorten the single-piece inspection cycle, achieve batch full inspection, and improve production efficiency. Before using the fixture, the dial indicator is first zeroed using a standard sample. The standard sample is a forging with zero deformation on the measured surface. When using the fixture, the A2 surface of the forging is aligned with the first inspection positioning surface 1-3 of the fixture, the B2 surface of the forging is aligned with the second inspection positioning surface 1-4 of the fixture, and the C2 surface of the forging is aligned with the positioning bolt 4. Then, the dial indicator value is read. If the value is positive, it indicates that the measured surface is deformed upwards; if the value is negative, it indicates that the measured surface is deformed downwards. The magnitude of the deformation on the measured surface can be determined by the value. Let the allowable deformation be H, and the measured value be x, then: |x|≤H, the part is judged as qualified; |x|>H, the part is judged as unqualified.

[0026] As a preferred embodiment of the above, such as Figures 1-5 As shown, the base 1 has a lightweight hollow structure.

[0027] Specifically, through its hollow structure, the base 1 significantly reduces the amount of material used while ensuring necessary strength, thereby lowering the overall weight. This helps improve the portability of the testing device, making it easier for operators to move and use it between different workstations. The lighter weight also makes the testing device easier to handhold or install on automated equipment, reducing the physical burden on operators and improving work efficiency.

[0028] As a preferred embodiment of the above, such as Figures 1-5 As shown, each side of the dial indicator mounting hole 1-1 is provided with a dial indicator fixing threaded hole 1-5, which is used to fix the dial indicator.

[0029] Specifically, by adding threaded holes 1-5 on both sides of the dial indicator mounting hole 1-1, the fixation reliability of dial indicator 3 is significantly enhanced through a double-sided locking mechanism. Compared with the traditional single-sided fixing method, this design can reduce the displacement deviation of dial indicator 3 caused by vibration or accidental operation. The distributed layout of threaded holes 1-5 allows dial indicator 3 to achieve micron-level position adjustment on the base 1, adapting to the testing needs of oil rail forgings of different specifications. The double-sided threaded holes 1-5 and the locking nuts of dial indicator 3 form redundant constraints, so even if the screw on one side loosens during the testing process, the positioning accuracy of dial indicator 3 can still be maintained on the other side.

[0030] As a preferred embodiment of the above, such as Figures 1-5 As shown, the stop block mounting groove 1-2 is provided with a stop block fixing threaded hole 1-6, which is used to fix the stop block 2.

[0031] Specifically, by adding stop fixing threaded holes 1-6 at the stop mounting slot 1-2, the fixing reliability of stop 2 is significantly enhanced through a double-sided locking mechanism. The distributed layout of the stop fixing threaded holes 1-6 allows the stop 2 to be adjusted on the base 1. The double-sided stop fixing threaded holes 1-6 and the locking nut of stop 2 form redundant constraints. Even if the screw on one side loosens during the testing process, the positioning accuracy of stop 2 can still be maintained on the other side, effectively avoiding testing errors caused by the loosening of stop 2.

[0032] As a preferred embodiment of the above, such as Figures 1-5 As shown, the stop block 2 is configured as an L-shape.

[0033] Specifically, the L-shaped stop 2, through two perpendicularly intersecting positioning surfaces, can simultaneously constrain the degrees of freedom of the bracket component in both the horizontal and vertical directions. One positioning surface of the L-shaped stop 2 is coplanar with the first detection positioning surface 1-3 of the base 1, and the other positioning surface is perpendicular to the second detection positioning surface 1-4. By transmitting the reference through surface contact, the detection coordinate system and the machining coordinate system of the bracket component are strictly unified.

[0034] As a preferred embodiment of the above, such as Figures 1-5 As shown, the positioning bolt 4 is an M3×10 internal hex bolt, used for left and right positioning during oil rail inspection.

[0035] Specifically, by selecting an M3×10 socket head cap screw as the positioning bolt 4, its small diameter design and short-stroke thread reduce the space occupied by the connection between the stop block 2 and the base 1 while meeting the clamping rigidity requirements.

[0036] As a preferred embodiment of the above, such as Figures 1-5 As shown, the base 1 is made of Cr12 and is formed by wire cutting, with a heat treatment hardness of HRC58-62.

[0037] As a preferred embodiment of the above, such as Figures 1-5 As shown, the stop block 2 is made of Cr12 with a heat treatment hardness of HRC58-62.

[0038] Specifically, by selecting Cr12 steel, an optimal balance was achieved between wear resistance, dimensional stability, and processing economy.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for detecting the deformation of a forged oil rail support, characterized in that: Includes a base (1), a stop (2), two dial indicators (3), and a positioning bolt (4); The base (1) is provided with dial indicator mounting holes (1-1), stop block mounting grooves (1-2), a first detection positioning surface (1-3), and a second detection positioning surface (1-4); The dial indicator mounting hole (1-1) is used to fix the dial indicator, and the stop block mounting groove (1-2) is used to fix the stop block (2); The stop block (2) is provided with a positioning bolt hole (2-1) and a countersunk hole (2-2). The countersunk hole (2-2) is connected to the base, and the positioning bolt hole (2-1) is used to fix the positioning bolt (4).

2. The device for detecting deformation of a forged oil rail support as described in claim 1, characterized in that, The base (1) has a lightweight hollow structure.

3. The device for detecting deformation of a forged oil rail support as described in claim 1, characterized in that, The dial indicator mounting hole (1-1) has a dial indicator fixing threaded hole (1-5) on each side, and the dial indicator fixing threaded hole (1-5) is used to fix the dial indicator.

4. The deformation detection device for the support portion of an oil rail forging according to claim 1, characterized in that, The stop block mounting groove (1-2) is provided with a stop block fixing threaded hole (1-6), and the stop block fixing threaded hole (1-6) is used to fix the stop block (2).

5. The device for detecting deformation of a forged oil rail support as described in claim 4, characterized in that, The stop block (2) is configured as an L-shape.

6. The deformation detection device for the support portion of an oil rail forging according to claim 5, characterized in that, The positioning bolt (4) is an M3×10 internal hex bolt, used for left and right positioning during oil rail inspection.

7. The device for detecting deformation of a forged oil rail support as described in claim 1, characterized in that, The base (1) is made of Cr12 and is formed by wire cutting. The heat treatment hardness is HRC58-62.

8. The device for detecting deformation of a forged oil rail support as described in claim 1, characterized in that, The stop block (2) is made of Cr12 and has a heat treatment hardness of HRC58-62.

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