Multi-parameter detection tool for engine aluminum elbow

Abstract

The utility model relates to a kind of multi-parameter detection tool for engine aluminum elbow pipe, including bottom plate, bottom plate is equipped with and the support platform of the flange end surface of aluminum elbow pipe lower end is attached, support platform is equipped with a pair of with the positioning pin of the flange two sides connecting hole cooperation of aluminum elbow pipe, support platform side is equipped with the through gauge pin for inserting the flange hole of aluminum elbow pipe flange middle, support platform side is equipped with the compression device that aluminum elbow pipe flange is fixed on support platform by compression;Bottom plate top is equipped with the first detection rod and second detection rod for respectively inserting the lower part through-hole and middle assembly hole of aluminum elbow pipe, bottom plate top is also equipped with semicircular detection shell with the upper end pipe orifice outer contour of aluminum elbow pipe adaptation and can rotate around its own axis line.The utility model relates to a kind of multi-parameter detection tool for engine aluminum elbow pipe, and it is reasonable in design, convenient and practical, realizes once clamping positioning, multi-parameter rapid detection, clamping stable can prevent deformation, detection result is reliable, detection efficiency is high, detection process standardization, improves production rhythm and consistency.

Description

Technical Field

[0001] This utility model relates to the field of tooling and fixtures, and in particular to a multi-parameter inspection tooling for aluminum bends in engines. Background Technology

[0002] The aluminum bend 100 in an engine is commonly used in cooling, intake, and exhaust systems. Its structure includes a bend body 110, an upper pipe opening 120, a lower flange 130 (with connection holes 131 on both sides of the flange), a through hole 140 embedded in the lower bend body, and a lug 150 with mounting holes 151 in the middle. Figure 1 As shown. This aluminum bent pipe part has multiple assembly references and critical dimensions (such as flange hole positions, pipe end positions, side hole positions, and assembly hole positions), requiring inspection using inspection fixtures before it leaves the production line or is assembled. Currently, commonly used inspection methods include manual calipers, coordinate measuring machines (CMMs), or single-dimensional gauges, which have the following problems: low inspection efficiency, poor repeatability, unreliable workpiece positioning, and impact on measurement accuracy. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a reasonably designed, convenient and practical multi-parameter testing fixture for engine aluminum bends, which has high testing efficiency and reliable testing results.

[0004] This utility model is implemented using the following solution: A multi-parameter testing fixture for an aluminum bend in an engine includes a base plate. The base plate is provided with a support platform that fits against the end face of the lower flange of the aluminum bend. The support platform is provided with a pair of positioning pins that mate with the connecting holes on both sides of the aluminum bend flange. The support platform is also provided with a gauge pin for inserting into the middle flange hole of the aluminum bend flange. A clamping device is provided on the side of the support platform to press and fix the aluminum bend flange onto the support platform. Above the base plate are a first testing rod and a second testing rod for inserting into the lower through hole and the middle assembly hole of the aluminum bend, respectively. Above the base plate is also a semi-circular testing shell that matches the outer contour of the upper end of the aluminum bend and can rotate around its own axis.

[0005] Furthermore, the base plate is provided with a first mounting seat and a second mounting seat for mounting the first detection rod and the second detection rod, respectively. The first mounting seat and the second mounting seat are respectively connected to a seat sleeve. The first detection rod and the second detection rod pass through the middle of the corresponding seat sleeve and can slide relative to it along the axial direction. The seat sleeve is provided with a limiting mechanism.

[0006] Furthermore, the limiting mechanism includes a threaded hole A with a seat side portion and extending into the inner hole. A ball-head plunger A is connected inside the threaded hole A. The first and second detection rods are respectively provided with grooves parallel to the axial direction on their sides. One end of the ball-head plunger A extends into the groove. The two ends of the groove are provided with limiting grooves A that cooperate with the ball head of the ball-head plunger A.

[0007] Furthermore, it also includes a thickness measuring block A for detecting the thickness of the aluminum bend lug. The second mounting base has a pad A parallel to the side of the aluminum bend lug on the side facing the aluminum bend. A thickness measuring interval A is left between the pad A and the aluminum bend lug for placing the thickness measuring block A. One side of the thickness measuring block A is a plane, and the other side is provided with stepped surfaces of different thicknesses.

[0008] Furthermore, the base plate is provided with third mounting seats for mounting the detection shell. A connecting shaft passing through the third mounting seat and rotating with the detection shell is fixedly connected to the centerline of the detection shell. A rotating handle is connected to the end of the connecting shaft away from the detection shell.

[0009] Furthermore, the third mounting base is connected to a limiting ring on the side away from the detection housing, which is sleeved on the outside of the connecting shaft. The outer periphery of the limiting ring is provided with several threaded holes B that extend to the inner hole. A ball-head plunger B is connected inside the threaded holes B. The connecting shaft is provided with a limiting groove B corresponding to the ball head of the ball-head plunger B.

[0010] Furthermore, it also includes a thickness measuring block B for detecting the distance between the end faces of the aluminum bend pipe opening. The third mounting base has a pad B parallel to the end face of the aluminum bend pipe opening on the side facing the aluminum bend pipe opening. A thickness measuring interval B is left between the pad B and the end face of the aluminum bend pipe opening for placing the thickness measuring block B. One side of the thickness measuring block B is a plane, and the other side is provided with stepped surfaces of different thicknesses.

[0011] Furthermore, the base plate is provided with four adjustable support feet; each adjustable support foot includes a foot pad, the upper end of which is fixedly connected to a support rod, the upper end of which is provided with a threaded part, and the bottom of the base plate is provided with a threaded hole that is threadedly connected to the upper end of the support rod.

[0012] Furthermore, the clamping device consists of at least two quick clamps.

[0013] Compared with the prior art, the present invention has the following advantages: The multi-parameter inspection fixture for engine aluminum bends is reasonably designed, convenient and practical, realizes one-time clamping and positioning, rapid multi-parameter inspection, stable clamping to prevent deformation, reliable inspection results, high inspection efficiency, standardized inspection process, and improved production cycle and consistency.

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below through specific embodiments and related drawings. Attached Figure Description

[0015] Figure 1 This is a three-dimensional view of the aluminum bent pipe of this utility model; Figure 2This is a three-dimensional view of the aluminum bent tube of this utility model from below. Figure 3 This is a three-dimensional view of the front of the detection tooling according to an embodiment of this utility model; Figure 4 This is a three-dimensional view of the rear orientation of the detection tooling according to an embodiment of this utility model; Figure 5 This is a three-dimensional view of the front position of the detection tooling in an embodiment of this utility model. Figure 6 This is a three-dimensional view of the front position of the detection tooling in an embodiment of this utility model. Figure 7 This is an exploded view of the connection position between the first detection rod and the first mounting base in an embodiment of this utility model; Figure 8 This is an exploded view of the connection position between the connecting shaft and the limiting ring in an embodiment of this utility model; Explanation of the labels in the diagram: 100-Aluminum bend, 110-Bend body, 120-Pipe end, 130-Flange, 131-Connecting hole, 140-Through hole, 150-Ear seat, 151-Assembly hole, 200-Base plate, 210-Adjustable support foot, 300-Support platform, 310-Positioning pin, 320-Go gauge pin, 400-First mounting base, 410-First testing rod, 411-Channel, 412-Limiting groove A, 420 - Seat sleeve, 421- Threaded hole A, 422- Ball plunger A, 500- Second mounting seat, 510- Second detection rod, 520- Pad A, 600- Third mounting seat, 610- Detection shell, 620- Connecting shaft, 621- Limiting groove B, 630- Limiting ring, 631- Threaded hole B, 632- Ball plunger B, 640- Pad B, 700- Thickness measuring block A, 800- Thickness measuring block B, 900- Quick clamp. Detailed Implementation

[0016] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0017] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0018] like Figures 1-8As shown, a multi-parameter inspection fixture for an aluminum bend in an engine includes a base plate 200. A support platform 300 is provided on the base plate 200 to fit against the lower flange face of the aluminum bend. The support platform has a pair of positioning pins 310 that mate with the connecting holes on both sides of the aluminum bend flange. A gauge pin 320 is also provided on the support platform for insertion into the middle flange hole of the aluminum bend flange. A clamping device is provided beside the support platform to press and fix the aluminum bend flange onto the support platform. Above the base plate are a first inspection rod 410 and a second inspection rod 510 for insertion into the lower through hole and the middle assembly hole of the aluminum bend, respectively. Above the base plate is a semi-circular inspection shell 610 that adapts to the outer contour of the upper end of the aluminum bend and can rotate around its own axis. After clamping the aluminum bent tube workpiece, this inspection fixture can quickly inspect key geometric parameters such as flange hole position, pipe end position, side hole position, and assembly hole position. The go gauge pin 320 detects the flange hole position; the inspection shell 610 rotates to detect the pipe end position, with its axis coinciding with the reference axis (design axis) of the aluminum bent tube end. If the pipe end axis of the aluminum bent tube workpiece deviates from the design position (i.e., does not coincide with the axis of the inspection shell 610), it will be stuck by the eccentric pipe end when the inspection shell 610 rotates; the first inspection rod 410 and the second inspection rod 510 respectively detect the side hole position and the assembly hole position, with their axes coinciding with the reference axis (design axis) of the aluminum bent tube end. This inspection fixture achieves one-time clamping and positioning, rapid multi-parameter inspection, stable clamping to prevent deformation, reliable inspection results, high inspection efficiency, standardized inspection process, and improved production cycle and consistency.

[0019] In this embodiment, the base plate is provided with a first mounting seat 400 and a second mounting seat 500 for mounting a first detection rod and a second detection rod, respectively. The first mounting seat and the second mounting seat are respectively connected to a seat sleeve 420. The first detection rod and the second detection rod pass through the middle of the corresponding seat sleeve and can slide relative to it along the axial direction. The seat sleeve is provided with a limiting mechanism. The first detection rod and the second detection rod can be inserted into and withdrawn from the corresponding hole by sliding extension and retraction.

[0020] In this embodiment, the limiting mechanism includes a threaded hole A421 with a seat side portion and extending into the inner hole. A ball-head plunger A422 is connected inside the threaded hole A. The first detection rod 410 and the second detection rod 510 each have a groove 411 parallel to the axial direction on their sides. One inward end of the ball-head plunger A extends into the groove. The two ends of the groove are provided with limiting grooves A412 that mate with the ball head of the ball-head plunger A. Both the first detection rod 410 and the second detection rod 510 have handles connected to their operating ends.

[0021] In this embodiment, a thickness gauge A700 is also included to detect the thickness of the aluminum bend tube lug. The second mounting base has a pad A520 parallel to the side of the lug on the aluminum bend tube facing the aluminum bend tube. A thickness gauge interval A is left between the pad A and the aluminum bend tube lug for inserting the thickness gauge A. One side of the thickness gauge A is a flat surface, and the other side has stepped surfaces of different thicknesses. The thickness gauge A700 is used to detect the size of the thickness gauge interval A to determine whether the lug thickness is acceptable. If the thinner stepped surface of the thickness gauge A enters between the pad A and the aluminum bend tube lug, while the thicker stepped surface cannot enter, then the lug thickness is acceptable. If the thinner stepped surface of the thickness gauge A cannot enter, or the thicker stepped surface can enter, then the lug thickness is unacceptable; the former is because the lug thickness is too large, and the latter is because the lug thickness is too small.

[0022] In this embodiment, the base plate is provided with a third mounting base 600 for mounting the detection shell. The detection shell is fixedly connected to a connecting shaft 620 that passes through the third mounting base and rotates with it. A rotating handle is connected to the end of the connecting shaft away from the detection shell.

[0023] In this embodiment, the third mounting base is connected to a limiting ring 630 on the side away from the detection shell, which is sleeved on the outside of the connecting shaft. The outer periphery of the limiting ring is provided with a plurality of threaded holes B631 that extend to the inner hole. A ball-head plunger B632 is connected in the threaded hole B. The connecting shaft 620 is provided with a limiting groove B621 corresponding to the ball head of the ball-head plunger B in a one-to-one cooperation with the limiting ring.

[0024] In this embodiment, a thickness gauge B800 is also included to detect the distance between the end faces of the aluminum bend pipe opening. The third mounting base has a pad B640 parallel to the end face of the aluminum bend pipe opening on the side facing the opening. A thickness gauge interval B is left between the pad B and the end face of the aluminum bend pipe opening for inserting the thickness gauge B. One side of the thickness gauge B is flat, and the other side has stepped surfaces of different thicknesses. The thickness gauge B800 is used to detect the size of the thickness gauge interval B to determine whether the thickness of the lug is acceptable. If the thinner stepped surface of the thickness gauge B enters between the pad B and the end face of the aluminum bend pipe opening, while the thicker stepped surface cannot enter, then the thickness of the pipe opening is acceptable. If the thinner stepped surface of the thickness gauge B cannot enter, or the thicker stepped surface can enter, then the thickness of the pipe opening is unacceptable; the former is because the thickness of the lug is too large, and the latter is because the thickness of the lug is too small. The pipe end thickness here refers to the normal thickness (i.e., the vertical distance from the pipe end face to the reference surface, which is the distance from the pipe end face to the center of the flange).

[0025] Both thickness gauges A700 and B800 are connected to handles, and thickness gauge B800 has a clearance groove to allow space for the second inspection unit. Thickness gauges A700 and B800 can be removed after use and do not need to be attached to the fixture.

[0026] In this embodiment, four adjustable support feet 210 are provided below the base plate; each adjustable support foot includes a foot pad, and a support rod is fixedly connected to the upper end of the foot pad. The upper end of the support rod is provided with a threaded part, and a threaded hole is opened at the bottom of the base plate to be threadedly connected to the upper end of the support rod.

[0027] In this embodiment, the clamping device consists of at least two quick clamps 900, specifically horizontal quick clamps. The aluminum bent tube workpiece is positioned by the mating of the flange end face and the support table surface, as well as the mating of the flange connection hole and the locating pin, and is clamped by the quick clamps.

[0028] With its compact overall design and convenient operation, the combination of multi-point gauges and thickness gauges ensures reliable test results and can be widely used in the pre-assembly quality inspection of aluminum tube structures in engines.

[0029] Unless otherwise stated, if any of the technical solutions disclosed in this utility model discloses a numerical range, then the disclosed numerical range is a preferred numerical range. Any person skilled in the art should understand that the preferred numerical range is merely one among many feasible numerical values ​​that has a more obvious or representative technical effect. Because there are many numerical values, it is impossible to list them all. Therefore, this utility model discloses only some numerical values ​​to illustrate the technical solutions of this utility model. Furthermore, the numerical values ​​listed above should not constitute a limitation on the scope of protection of this utility model.

[0030] If this utility model discloses or relates to mutually fixedly connected parts or structural components, then unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws), or a non-detachable fixed connection (e.g., riveting, welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured by integral molding using a casting process) (except where it is obviously impossible to use an integral molding process).

[0031] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in this utility model above include states or shapes that are similar to, close to, or approximate with them.

[0032] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.

[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A multi-parameter inspection fixture for aluminum bends in engines, characterized in that: The device includes a base plate, on which a support platform is provided that fits against the end face of the lower flange of the aluminum bend. The support platform is provided with a pair of positioning pins that mate with the connecting holes on both sides of the aluminum bend flange. The support platform is also provided with a gauge pin for inserting into the middle flange hole of the aluminum bend flange. A clamping device is provided on the side of the support platform to press and fix the aluminum bend flange onto the support platform. Above the base plate are a first detection rod and a second detection rod for inserting into the lower through hole and the middle assembly hole of the aluminum bend, respectively. Above the base plate is also a semi-circular detection shell that matches the outer contour of the upper end of the aluminum bend and can rotate around its own axis.

2. The multi-parameter inspection fixture for engine aluminum bends according to claim 1, characterized in that: The base plate is provided with a first mounting seat and a second mounting seat for mounting the first detection rod and the second detection rod respectively. The first mounting seat and the second mounting seat are respectively connected to a seat sleeve. The first detection rod and the second detection rod pass through the middle of the corresponding seat sleeve and can slide relative to it along the axial direction. The seat sleeve is provided with a limiting mechanism.

3. The multi-parameter inspection fixture for engine aluminum bends according to claim 2, characterized in that: The limiting mechanism includes a threaded hole A with a seat side portion and extending into the inner hole. A ball-head plunger A is connected inside the threaded hole A. The first and second detection rods are respectively provided with grooves parallel to the axial direction on their sides. One end of the ball-head plunger A extends into the groove. The two ends of the groove are provided with limiting grooves A that cooperate with the ball head of the ball-head plunger A.

4. The multi-parameter inspection fixture for engine aluminum bends according to claim 2, characterized in that: It also includes a thickness measuring block A for detecting the thickness of the aluminum bend lug. The second mounting base has a pad A parallel to the side of the aluminum bend lug on the side facing the aluminum bend. A thickness measuring interval A is left between the pad A and the aluminum bend lug for placing the thickness measuring block A. One side of the thickness measuring block A is a plane, and the other side is provided with stepped surfaces of different thicknesses.

5. The multi-parameter inspection fixture for engine aluminum bends according to claim 1, characterized in that: The base plate is provided with third mounting seats for mounting the detection shell. The detection shell is fixedly connected to a connecting shaft that passes through the third mounting seat and rotates with it. The end of the connecting shaft away from the detection shell is connected to a rotating handle.

6. The multi-parameter inspection fixture for engine aluminum bends according to claim 5, characterized in that: The third mounting base is connected to a limiting ring on the side away from the detection housing, which is sleeved on the outside of the connecting shaft. The outer periphery of the limiting ring is provided with several threaded holes B that extend to the inner hole. A ball-head plunger B is connected in the threaded hole B. The connecting shaft is provided with a limiting groove B corresponding to the ball head of the ball-head plunger B.

7. The multi-parameter inspection fixture for engine aluminum bends according to claim 5, characterized in that: It also includes a thickness measuring block B for detecting the distance between the end faces of the aluminum bend pipe opening. The third mounting base has a pad B parallel to the end face of the aluminum bend pipe opening on the side facing the aluminum bend pipe opening. A thickness measuring interval B is left between the pad B and the end face of the aluminum bend pipe opening for placing the thickness measuring block B. One side of the thickness measuring block B is a plane, and the other side is provided with stepped surfaces of different thicknesses.

8. The multi-parameter inspection fixture for engine aluminum bends according to claim 1, characterized in that: The base plate is provided with four adjustable support feet; each adjustable support foot includes a foot pad, the upper end of which is fixedly connected to a support rod, the upper end of which is provided with a threaded part, and the bottom of the base plate is provided with a threaded hole that is threadedly connected to the upper end of the support rod.

9. The multi-parameter inspection fixture for engine aluminum bends according to claim 1, characterized in that: The clamping device consists of at least two quick clamps.

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