Auxiliary measuring tool for casting precision of curved flanged pipe

Abstract

The utility model relates to an auxiliary measuring tool for the casting precision of a curved-surface flange pipe, which comprises a bottom plate and a plug gauge, and the bottom plate is sequentially provided with a pressing device, a curved-surface flange measuring mechanism, a flange pipe positioning mechanism and a pipe orifice measuring mechanism. The flange pipe positioning mechanism comprises second vertical plates which are symmetrically arranged, a third vertical plate is arranged between the second vertical plates, a first vertical plate is arranged on one side of each second vertical plate, and a fourth vertical plate and a fifth vertical plate are arranged on the other side of each second vertical plate. And a first positioning pin, a second positioning pin, a third positioning pin, a fourth positioning pin and a fifth positioning pin are respectively mounted on the first vertical plate, the second vertical plate, the third vertical plate, the fourth vertical plate and the fifth vertical plate. According to the product structure and size requirements, the six-point positioning principle is utilized, the position of a reference point is limited, independent positions and mutual positions of an inner hole and a flange curved surface contour are detected, three-coordinate detection is not needed, and the detection efficiency and the product stability are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of machining tooling and relates to an auxiliary measuring tool for the casting accuracy of a curved flange pipe. Background Art

[0002] Curved flange pipes are widely used in urban facilities and mechanical equipment. Curved flange pipes consist of curved flanges and pipes. The contour accuracy of the flange and pipe significantly impacts post-installation performance, necessitating machining to ensure contour accuracy. Curved flange pipes are typically cast, so ensuring sufficient margin in the casting is a prerequisite. Existing testing methods utilize three-coordinate measurement (CMM), which is slow and costly. Furthermore, 100% inspection is not possible in large-scale production, leading to product instability. Summary of the Invention

[0003] The purpose of the utility model is to provide an auxiliary measuring tool for the casting accuracy of a curved flange pipe, which can solve the above-mentioned problems and improve the inspection efficiency.

[0004] According to the technical solution provided by the utility model: an auxiliary measurement tool for the casting accuracy of a curved flange pipe, including a base plate and a plug gauge, the base plate is sequentially provided with a clamping device, a curved flange measuring mechanism, a flange pipe positioning mechanism, and a pipe mouth measuring mechanism; the flange pipe positioning mechanism includes a second vertical plate, the second vertical plates are symmetrically arranged, a third vertical plate is arranged between the second vertical plates, a first vertical plate is provided on one side of the second vertical plate, and a fourth vertical plate and a fifth vertical plate are provided on the other side of the second vertical plate, and a first positioning pin, a second positioning pin, a third positioning pin, a fourth positioning pin, and a fifth positioning pin are respectively installed on the first vertical plate, the second vertical plate, the third vertical plate, the fourth vertical plate, and the fifth vertical plate.

[0005] As a further improvement of the present invention, the curved flange measuring mechanism includes a detection plate, the detection plate is provided with a detection curved surface on the side facing the flange pipe positioning mechanism, and limit pins are symmetrically installed on the detection curved surface.

[0006] As a further improvement of the present invention, the detection plate is installed on the base plate through the detection vertical plate.

[0007] As a further improvement of the present invention, the detection curved surface is adapted to the curved flange.

[0008] As a further improvement of the present invention, the pipe mouth measuring mechanism includes a transition plate, the lower part of the transition plate is connected to the fifth vertical plate, the upper part of the transition plate is slidably installed with a detection pin slide rod, the inner end of the detection pin slide rod is installed with a pipe mouth detection pin, and the outer end of the detection pin slide rod is installed with a handle.

[0009] As a further improvement of the present invention, the clamping device is a quick clamp.

[0010] As a further improvement of the present invention, the quick clamp is a push-pull type quick clamp.

[0011] As a further improvement of the present invention, the movable end of the quick clamp faces the flange pipe positioning mechanism.

[0012] The positive progress of this application is:

[0013] The utility model uses the principle of six-point positioning to limit the position of the reference point according to the product structure and size requirements, and detects the independent position and mutual position of the inner hole and flange surface contour, without the need for three-coordinate detection, thereby improving inspection efficiency and product stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view of the utility model.

[0015] Figure 2 It is a top view of the utility model.

[0016] Figure 3 This is a structural diagram of the curved flange pipe of the utility model.

[0017] Figure 4 It is a front view of the curved flange pipe of the present invention.

[0018] Figures 1-4 It includes a detection vertical plate 1, a detection plate 2, a second positioning pin 3, a third vertical plate 4, a fourth vertical plate 5, a pipe mouth detection pin 6, a detection pin connecting rod 7, a handle 8, a transition plate 9, a fifth positioning pin 10, a fifth vertical plate 11, a bottom plate 12, a third vertical plate 16, a first positioning pin 17, a second vertical plate 18, a quick clamp 19, a curved flange pipe 23, a curved flange 23-1, a pipe 23-2, a fourth positioning pin 24, a third positioning pin 25, a limit pin 26, etc. DETAILED DESCRIPTION

[0019] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0020] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0021] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate for the embodiments of the present invention described herein. In addition, similar terms such as "including" and "having" mean that in addition to those contents already listed in "including" and "having", other contents that have not been listed may also be "included" and "having"; for example, a process, method, system, product or device that may include a series of steps or units is not necessarily limited to those steps or units that have been clearly listed, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products or devices.

[0022] Due to the angle of the drawing, some components may not be drawn, but their positions and connection relationships can be partially understood based on the text.

[0023] like Figure 1-Figure 2 As shown, the utility model is an auxiliary measuring tool for the casting accuracy of curved flange pipes, including a base plate 12 and a plug gauge. The base plate 12 is sequentially provided with a clamping device, a curved flange measuring mechanism, a flange pipe positioning mechanism, and a pipe mouth measuring mechanism.

[0024] The flange pipe positioning mechanism includes a second vertical plate 4, which is symmetrically arranged. A third vertical plate 16 is provided between the second vertical plates 4, a first vertical plate 18 is provided on one side of the second vertical plate 4, and a fourth vertical plate 5 and a fifth vertical plate 11 are provided on the other side of the second vertical plate 4. The first positioning pin 17, the second positioning pin 3, the third positioning pin 25, the fourth positioning pin 24, and the fifth positioning pin 10 are respectively installed on the first vertical plate 18, the second vertical plate 4, the third vertical plate 16, the fourth vertical plate 5, and the fifth vertical plate 11.

[0025] like Figure 3-Figure 4 As shown, the curved flange pipe 23 that needs to be inspected includes a curved flange 23-1 and a pipe 23-2. A flange bottom positioning boss 23-11 is provided at the bottom of the curved flange 23-1, and a flange middle positioning boss 23-12 is symmetrically provided in the middle of the curved flange 23-1; a pipe bottom positioning boss 23-21 and a pipe side positioning boss 23-22 are provided on the outer periphery of the upper end of the pipe 23-2.

[0026] The third positioning pin 25 and the first positioning pin 17 abut against the front and outer side of the positioning boss 23-11 at the bottom of the flange, and the second positioning pin 3 abuts against the front of the positioning boss 23-12 in the middle of the flange; the fifth positioning pin 10 abuts against the lower end of the positioning boss 23-21 at the bottom of the pipe, and the fourth positioning pin 24 abuts against the outer side of the positioning boss 23-22 on the side of the pipe.

[0027] The curved flange measurement mechanism includes a detection plate 2, which is mounted on a base plate 12 via a detection stand 1. The detection plate 2 has a detection curved surface on the side facing the flange pipe positioning mechanism, which mates with the curved flange 23-1. Stop pins 26 are symmetrically mounted on the detection curved surface.

[0028] The pipe mouth measuring mechanism includes a transition plate 9, the lower part of the transition plate 9 is connected to the fifth vertical plate 11, the upper part of the transition plate 9 is slidably installed with a detection pin slide 7, the inner end of the detection pin slide 7 is installed with a pipe mouth detection pin 6, and the outer end of the detection pin slide 7 is installed with a handle 8.

[0029] The clamping device is a quick clamp 19, specifically a push-pull quick clamp. The movable end of the quick clamp 19 faces the flange pipe positioning mechanism.

[0030] The working process of this utility model is as follows:

[0031] like Figure 1-Figure 2 As shown, place the curved flange pipe 23 into the curved flange measuring mechanism, the limit pin 26 of the curved flange measuring mechanism rests against the curved flange 23-1, operate the quick clamp 19 to fix the curved flange pipe 23, push the pipe mouth detection pin 6 into the upper end of the pipe 23-2 to detect the inner hole size and position requirements, and slide the plug gauge along the gap between the detection plate 2 and the curved flange 23-1 to check the flange curved surface position requirements. If the plug gauge cannot slide into the gap, the size meets the drawing requirements and the part is qualified. Otherwise, it is unqualified.

[0032] It is understood that the above embodiments are merely exemplary embodiments for illustrating the principles of the present invention, and the present invention is not limited thereto. Those skilled in the art may make various modifications and improvements without departing from the spirit and substance of the present invention, and such modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. An auxiliary measuring tool for the casting accuracy of a curved flange pipe, comprising a base plate (12) and a plug gauge, characterized in that: The bottom plate (12) is provided with a pressing device, a curved flange measuring mechanism, a flange pipe positioning mechanism, and a pipe mouth measuring mechanism in sequence; the flange pipe positioning mechanism comprises a second vertical plate (4), the second vertical plates (4) are symmetrically arranged, a third vertical plate (16) is provided between the second vertical plates (4), a first vertical plate (18) is provided on one side of the second vertical plate (4), and a fourth vertical plate (5) and a fifth vertical plate (11) are provided on the other side of the second vertical plate (4); a first positioning pin (17), a second positioning pin (3), a third positioning pin (25), a fourth positioning pin (24), and a fifth positioning pin (10) are respectively installed on the first vertical plate (18), the second vertical plate (4), the third vertical plate (16), the fourth vertical plate (5), and the fifth vertical plate (11).

2. The auxiliary measuring tool for the casting accuracy of curved flange pipe according to claim 1, characterized in that: The curved flange measuring mechanism comprises a detection plate (2), wherein the detection plate (2) is provided with a detection curved surface on the side facing the flange pipe positioning mechanism, and limit pins (26) are symmetrically mounted on the detection curved surface.

3. The auxiliary measuring tool for the casting accuracy of curved flange pipe according to claim 2, characterized in that: The detection plate (2) is mounted on the base plate (12) via the detection vertical plate (1).

4. The auxiliary measuring tool for the casting accuracy of curved flange pipe according to claim 2, characterized in that: The detection curved surface is adapted to the curved flange (23-1).

5. The auxiliary measuring tool for the casting accuracy of curved flange pipe according to claim 1, characterized in that: The pipe mouth measuring mechanism comprises a transition plate (9), the lower part of the transition plate (9) is connected to the fifth vertical plate (11), a detection pin slide rod (7) is slidably installed in the upper part of the transition plate (9), the inner end of the detection pin slide rod (7) is installed with a pipe mouth detection pin (6), and the outer end of the detection pin slide rod (7) is installed with a handle (8).

6. The auxiliary measuring tool for the casting accuracy of curved flange pipe according to claim 1, characterized in that: The clamping device is a quick clamp (19).

7. The auxiliary measuring tool for the casting accuracy of curved flange pipe according to claim 6, characterized in that: The quick clamp (19) is a push-pull type quick clamp.

8. The auxiliary measuring tool for the casting accuracy of curved flange pipe according to claim 6, characterized in that: The movable end of the quick clamp (19) faces the flange pipe positioning mechanism.

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