Flexible positioning device for oil rail detection

Abstract

The utility model relates to a flexible positioning device for oil rail detection. The device comprises a bottom plate, and connecting holes distributed in an array mode are formed in the bottom plate. The lower ends of the oil rail fixing supports are provided with first locking holes for fixing elements to penetrate through to position the oil rail fixing supports on the connecting holes of the bottom plate, and the upper ends of the oil rail fixing supports are provided with first bearing parts for bearing the ends of oil rails; and the lower end of the oil injection seat supporting bracket is provided with a second locking hole through which a fixing element penetrates to position the oil injection seat supporting bracket on the connecting hole of the bottom plate, and the upper end of the oil injection seat supporting bracket is provided with a second bearing part for bearing the oil injection seat. The oil rail accessory clamping device further comprises at least one pair of positioning blocks used for locking the oil rail accessory, each positioning block is provided with a third locking hole allowing a fixing element to penetrate through to position the positioning block on the connecting hole of the bottom plate, and the inner side face of each positioning block is an arc-shaped clamping face. The oil rail detection device can be flexibly applied to detection of oil rail products of various specifications and accessories of the oil rail products, and is simple in structure, long in service life, high in working efficiency, good in process feasibility and remarkable in economic benefit.

Description

Technical Field

[0001] The utility model relates to a production or detection positioning fixture for a fuel distribution pipe (or oil rail) of a motor vehicle, in particular to a flexible positioning device for oil rail detection. Background Art

[0002] The high-pressure fuel rail is used to store fuel and suppress pressure fluctuations caused by the high-pressure pump supply and the injector injection to ensure stable system pressure. At present, in order to meet the National VI emission requirements, the working pressure of the engine fuel system of fuel vehicles has been increased from 250 bar to 350 bar, and the fuel rail has changed from the previous assembled welding structure to a forged machined structure. The machining of the fuel rail requires frequent measurement of the processing dimensions, and the fuel rail needs to be accurately fixed before measurement. How to quickly and accurately fix the oil rail to facilitate three-coordinate measurement is related to the product quality and processing effect of the oil rail. Such a positioning device for three-coordinate detection of the oil rail is urgently needed.

[0003] To this end, the Chinese utility model patent specification (authorization announcement number: CN212274894U) discloses a positioning device for three-coordinate detection of the oil rail. Figure 1 , 2 As shown, it includes a bottom plate A1 and a base A2, and the base A2 is fixedly mounted on the bottom plate A1; the base A2 is provided with a fixing groove A4 for placing the oil rail A6; the shape of the fixing groove A4 matches the shape of the oil rail A6, and the base A2 is provided with a plurality of positioning pins A3 on both sides of the fixing groove A4, which are used to limit the oil rail A6 placed in the fixing groove A4. The fixing groove A4 of the base A2 is provided with limiting side plates on both sides, and the upper part of the limiting side plates is provided with a plurality of protrusions A5, and the protrusions A5 are provided with jacks, and the positioning pins A3 are detachably mounted on the protrusions A5.

[0004] However, this positioning device can only be used to position products of one specification, and the base for this specification of product needs to be customized, and components such as positioning pins A3, limiting side plates, and protrusions A4 need to be designed, which cannot be flexibly used for the detection of products of different specifications. Utility Model Content

[0005] The purpose of the utility model is to provide a flexible positioning device for oil rail detection, which mainly solves the technical problem that the existing positioning device for three-coordinate detection of oil rails can only be used to detect oil rails of one specification. It can be flexibly used for the detection of oil rail products of various specifications and their accessories. It has a simple structure, a long service life, high working efficiency, good process feasibility and significant economic benefits.

[0006] To solve the above technical problems, the utility model is implemented as follows:

[0007] A flexible positioning device for oil rail detection, characterized in that it comprises:

[0008] A bottom plate, the bottom plate being provided with connection holes distributed in an array;

[0009] at least one pair of oil rail fixing brackets, wherein the lower ends of the oil rail fixing brackets are provided with first locking holes for the fixing elements to pass through and position the oil rail fixing brackets on the connecting holes of the bottom plate, and the upper ends of the oil rail fixing brackets are provided with first supporting portions for supporting the ends of the oil rails;

[0010] At least one fuel injection seat support bracket, the lower end of which is provided with a second locking hole for a fixing element to pass through to position the fuel injection seat support bracket on the connecting hole of the base plate, and the upper end of which is provided with a second supporting portion for supporting the fuel injection seat.

[0011] The flexible positioning device for oil rail detection is characterized in that it also includes at least one pair of positioning blocks for locking oil rail accessories, the positioning blocks have third locking holes for fixing elements to pass through to position the positioning blocks on the connecting holes of the bottom plate, and the inner side surface of the positioning blocks is an arc-shaped clamping surface.

[0012] The flexible positioning device for oil rail detection is characterized in that the oil rail accessory is an oil rail end cover or a sensor arranged at the end of the oil rail.

[0013] The beneficial effects of the utility model are:

[0014] 1. When the utility model is used, at least one pair of oil rail fixing brackets can be fixed on the bottom plate and kept at a corresponding distance according to different specifications of the oil rail, and then the oil injection seat support bracket can be fixed on the bottom plate position corresponding to the position of the injector seat on the oil rail product. In this way, it can be ensured that the oil rail products of this specification can be positioned on the device.

[0015] 2. The device of the utility model also includes at least one pair of positioning blocks for locking the oil rail accessories. The positioning blocks have a third locking hole for the fixing element to pass through to position the positioning blocks on the connecting hole of the bottom plate. The inner side of the positioning block is an arc-shaped clamping surface. The oil rail accessories are oil rail end caps or sensors arranged at the ends of the oil rails. Similarly, the corresponding positions of the positioning blocks can also be adjusted according to the specifications of the oil rail accessories to clamp oil rail accessories of different specifications.

[0016] 3. The utility model has a simple structure, a long service life, high working efficiency, good process feasibility and remarkable economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a stereoscopic diagram of an existing positioning device for three-coordinate detection of an oil rail.

[0018] Figure 2 yes Figure 1 Front view of the positioning device for three-coordinate detection of the oil rail.

[0019] Figure 3 It is a structural schematic diagram of the utility model.

[0020] Figure 4 It is a top view of the utility model.

[0021] Figure 5 It is a side view of the utility model. DETAILED DESCRIPTION

[0022] The present invention is further described below with reference to the embodiments.

[0023] See also Figure 3-5 The utility model discloses a flexible positioning device for oil rail detection. As shown in the figure, it includes:

[0024] A bottom plate 1, on which connection holes 11 distributed in an array are provided;

[0025] at least one pair of oil rail fixing brackets 2, wherein the lower end of the oil rail fixing bracket 2 is provided with a first locking hole 21 for a fixing element to pass through to position the oil rail fixing bracket 2 on the connecting hole 11 of the bottom plate 1, and the upper end of the oil rail fixing bracket 2 is provided with a first supporting portion 22 for supporting the end of the oil rail 4;

[0026] At least one fuel injection seat support bracket 3 is provided at its lower end with a second locking hole 31 for a fixing element to pass through to position the fuel injection seat support bracket 3 on the connecting hole 11 of the base plate 1, and the upper end of the fuel injection seat support bracket 3 is provided with a second supporting portion 32 for supporting the fuel injection seat.

[0027] When the utility model is used, at least one pair of oil rail fixing brackets 2 can be fixed on the bottom plate 1 and kept at a corresponding spacing according to different specifications of the oil rail 4, and then the oil injection seat support bracket 3 can be fixed on the bottom plate 1 position corresponding to the position of the injector seat on the oil rail 2 product. In this way, it can be ensured that the oil rail 2 products of this specification can be positioned on the device.

[0028] In addition, the device also includes at least one pair of positioning blocks 5 for locking the oil rail attachment 6. The positioning block 5 has a third locking hole 51 for a fixing element to pass through to position the positioning block 5 on the connecting hole 11 of the bottom plate 1. The inner side of the positioning block 5 is an arc-shaped clamping surface 52. The oil rail attachment 6 is an oil rail end cap or a sensor arranged at the end of the oil rail. Similarly, the corresponding position of the positioning block 5 can also be adjusted according to the specifications of the oil rail attachment 6 to clamp oil rail attachments 6 of different specifications.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. That is, any equivalent changes and modifications made according to the content of the patent application scope of the present invention should be within the technical scope of the present invention.

Claims

1. A flexible positioning device for oil rail detection, characterized in that :It includes, A bottom plate (1), the bottom plate (1) being provided with connection holes (11) distributed in an array; at least one pair of oil rail fixing brackets (2), the lower ends of the oil rail fixing brackets (2) being provided with first locking holes (21) for a fixing element to pass through to position the oil rail fixing brackets (2) on a connecting hole (11) of the bottom plate (1), and the upper ends of the oil rail fixing brackets (2) being provided with first supporting portions (22) for supporting the ends of the oil rails (4); At least one fuel injection seat support bracket (3), the lower end of the fuel injection seat support bracket (3) is provided with a second locking hole (31) for a fixing element to pass through to position the fuel injection seat support bracket (3) on the connecting hole (11) of the base plate (1), and the upper end of the fuel injection seat support bracket (3) is provided with a second supporting portion (32) for supporting the fuel injection seat.

2. The flexible positioning device for oil rail detection according to claim 1 is characterized in that The invention also comprises at least one pair of positioning blocks (5) for locking the oil rail attachment (6), the positioning blocks (5) having third locking holes (51) for a fixing element to pass through to position the positioning blocks (5) on the connecting holes (11) of the base plate (1), and the inner side surface of the positioning blocks (5) is an arc-shaped clamping surface (52).

3. The flexible positioning device for oil rail detection according to claim 2 is characterized in that The fuel rail accessory (6) is a fuel rail end cover or a sensor arranged at the end of the fuel rail.

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