Axial detection device for parts

Abstract

The utility model provides an axial detection device for a part, and aims to solve the technical problems that the detection speed is low and the collision risk exists when the part is hoisted when the part is detected through a three-coordinate detector at present. The detection device comprises a supporting assembly which is provided with a supporting part and an extrusion part, a distance exists between the supporting part and the extrusion part, and the extrusion part can be close to or away from the supporting part; the micrometer is arranged on the supporting assembly and located on the side, away from the supporting part, of the extrusion part, and a micrometer threaded rod of the micrometer points to the extrusion part. One end of a part needing to be detected abuts against the supporting part, the part abuts against the supporting part through the extrusion part, then the micrometer threaded rod of the micrometer abuts against the pressing part, and the actual size of the part can be obtained by subtracting the thickness of the pressing part from the obtained size. During measurement, the part can be located at any position, measurement can be carried out only by clamping the supporting assemblies at the two ends of the part, and the micrometer can provide high-precision size measurement.

Description

Technical Field

[0001] The utility model relates to a detection tool, in particular to an axial detection device for parts. Background Art

[0002] Roots pump is a vacuum pump. During the production and processing, the dimensional tolerance range of various components needs to be strictly controlled to ensure the normal operation of the Roots pump after assembly.

[0003] At present, it is common to use a three-coordinate measuring machine to detect the size of parts. However, the detection speed of the three-coordinate measuring machine is relatively slow, and during the detection process, the parts need to be hoisted, which makes the parts prone to bumps and affects the structure of the parts. Utility Model Content

[0004] In view of the technical problems that the current detection speed of parts by three-coordinate measuring instruments is slow and there is a risk of collision when hoisting parts, the utility model provides an axial detection device for parts, which has the advantages of no need for hoisting and rapid and accurate detection.

[0005] The technical solution of the utility model is:

[0006] An axial detection device for a part, comprising:

[0007] A support assembly, comprising a support portion and an extrusion portion, wherein there is a distance between the support portion and the extrusion portion, and the extrusion portion can be close to or away from the support portion;

[0008] The micrometer is arranged on the supporting assembly and is located at a side of the extrusion portion away from the supporting portion, and the micrometer threaded rod of the micrometer points to the extrusion portion.

[0009] Optionally, the support assembly comprises:

[0010] Connecting plate;

[0011] A support plate, one side of which is the support portion, and one end of which is connected to one end of the connecting plate;

[0012] A positioning plate, one end of which is connected to the other end of the connecting plate and is arranged parallel to the supporting plate;

[0013] Wherein, the micrometer and the extrusion part are both arranged on the positioning plate.

[0014] Optionally, the positioning plate has a first threaded hole and a second threaded hole, the micrometer is fixedly installed in the first threaded hole, and the extrusion part is movably installed in the second threaded hole.

[0015] Optionally, the extrusion portion comprises:

[0016] A screw rod matched with the second threaded hole;

[0017] The pressing plate is located between the supporting plate and the positioning plate and is rotatably connected to one end of the screw rod.

[0018] Optionally, the support portion includes a bottom plate, and the bottom plate is fixed on the support plate.

[0019] Optionally, an arc-shaped handle is provided on the support assembly.

[0020] Optionally, the pressing plate is a rectangular plate-shaped structure, and the top of the pressing plate is in sliding contact with the connecting plate.

[0021] Optionally, two side surfaces of the pressing plate are parallel to each other.

[0022] Optionally, the extrusion portion is arranged at the end of the micrometer threaded rod of the micrometer.

[0023] Optionally, the support assembly has a through hole, the support portion is movably disposed in the through hole via a support rod, and the end of the micrometer threaded rod can contact the extrusion portion.

[0024] Compared with the prior art, the beneficial effects of the utility model are:

[0025] A supporting assembly is provided, and a supporting portion and an extruding portion are provided on the supporting assembly. When in use, one end of the part to be inspected is pressed against the supporting portion, and the part is pressed against the supporting portion by the extruding portion, and the length dimension direction of the part to be inspected is made perpendicular to the supporting portion. Then, the micrometer threaded rod of the micrometer is pressed against the pressing portion, and the distance between the pressing portion and the supporting portion is measured, so that the actual size of the part can be obtained by subtracting the thickness of the pressing portion from the obtained size.

[0026] In this technical solution, during the measurement process, the part can be in any position, and the measurement can be performed by simply clamping the support components at both ends of the part. The micrometer can provide high-precision dimensional measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is a three-dimensional structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0029] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the products of the present invention are conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0033] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0034] Example:

[0035] See also Figure 1This embodiment discloses an axial detection device for a part, including a support assembly 10 and a micrometer 20. Specifically, the support assembly 10 has a support portion 11 and an extrusion portion 12, and there is a distance between the support portion 11 and the extrusion portion 12, and the extrusion portion 12 can be close to or away from the support portion 11.

[0036] The micrometer 20 is disposed on the supporting assembly 10 , and the micrometer 20 and the supporting portion 11 are respectively located on both sides of the extrusion portion 12 , and at the same time, the end of the micrometer threaded rod 21 of the micrometer 20 faces the extrusion portion 12 .

[0037] In this embodiment, the thickness of the extrusion portion 12 is uniform and known, and at the same time, the end of the micrometer threaded rod 21 of the micrometer 20 can abut against one side surface of the extrusion portion 12 .

[0038] When inspecting parts, one end of the part to be inspected is placed on the support part 11, and the part is pressed against the support part 11 through the extrusion part 12, and the length dimension direction of the part to be inspected is perpendicular to the support part 11, and then the micrometer threaded rod 21 of the micrometer 20 is abutted against the pressing part to measure the distance between the pressing part and the support part 11, so that the actual size of the part can be obtained by subtracting the thickness of the pressing part from the obtained size.

[0039] In the present technical solution, during the measurement process, the part can be in any position, and the measurement can be performed by simply clamping the support assembly 10 at both ends of the part, and the micrometer 20 can provide high-precision dimensional measurement.

[0040] In one specific embodiment:

[0041] The support assembly 10 includes a connecting plate 13, a supporting plate 14 and a positioning plate 15, wherein the supporting plate 14 and the positioning plate 15 are arranged parallel to each other. Specifically, one end of the supporting plate 14 is vertically fixedly connected to one end of the connecting plate 13, and one end of the positioning plate 15 is vertically fixedly connected to the other end of the connecting plate 13.

[0042] The micrometer 20 and the extrusion portion 12 are both disposed on the positioning plate 15 , and the support portion 11 is located on a side surface of the support plate 14 , so that the extrusion portion 12 can be close to or away from the support plate 14 .

[0043] In this embodiment, the connecting plate 13 , the supporting plate 14 and the positioning plate 15 together form a U-shaped structure, which can clamp the parts to be inspected between the supporting portion 11 and the extruding portion 12 .

[0044] In another specific embodiment:

[0045] The positioning plate 15 has a first threaded hole 151 and a second threaded hole 152 , the axis of the first threaded hole 151 and the axis of the second threaded hole 152 are parallel to each other, and the micrometer 20 is threadably matched in the first threaded hole 151 , so that the micrometer 20 is fixed on the positioning plate 15 .

[0046] The extrusion portion 12 is movably installed in the second threaded hole 152 .

[0047] Specifically, the extrusion part 12 includes a screw 121 and a pressing plate 122, wherein the screw 121 is matched in the hole of the second screw 121, so that one end of the screw 121 is located between the support plate 14 and the positioning plate 15, and a pressing plate 122 is provided on this end of the screw 121, and one side of the pressing plate 122 is rotatably connected to the screw 121.

[0048] The two side surfaces of the pressing plate 122 are parallel to each other. Meanwhile, one side surface of the supporting portion 11 is a supporting surface 112 . The supporting surface 112 and the side surface of the pressing plate 122 are parallel to each other.

[0049] During the inspection process, by rotating the screw 121, one side of the pressure plate 122 is pressed against a point of the part, and the part is pressed against the supporting surface 112, and then the micrometer threaded rod 21 of the micrometer 20 is pressed against the other side of the pressure plate 122 for measurement. In this embodiment, the thickness of the pressure plate 122 is known. After the micrometer 20 measures the result, the thickness of the pressure plate 122 is subtracted to obtain the size of the part.

[0050] In addition, the pressing plate 122 is a rectangular plate-shaped structure, and the top of the pressing plate 122 is in sliding contact with the connecting plate 13. The planar contact relationship between the pressing plate 122 and the connecting plate 13 can prevent the pressing plate 122 from rotating.

[0051] Preferably, the support portion 11 includes a bottom plate 111, the bottom plate 111 is fixedly arranged on the support plate 14, and the support surface 112 is located on the bottom plate 111. Since the telescopic amount of the micrometer threaded rod 21 of the micrometer 20 is limited, by providing the bottom plate 111 and making the bottom plate 111 replaceable, when measuring parts of relatively small size, the detection can be realized by replacing a different bottom plate 111.

[0052] In another specific embodiment:

[0053] An arc-shaped handle 30 is provided on the support assembly 10, and the arc-shaped handle 30 is provided to facilitate the movement of the entire detection device.

[0054] Embodiment 2:

[0055] This embodiment discloses an axial detection device for a part, and the difference between this embodiment and embodiment 1 is that the extrusion portion 12 is arranged at the end of the micrometer threaded rod 21 of the micrometer 20, and the extrusion portion 12 is rotatably connected to the end of the micrometer threaded rod 21. Therefore, when the micrometer threaded rod 21 of the micrometer 20 moves, the pressing plate 122 moves therewith and presses against the end of the part.

[0056] Embodiment 3:

[0057] This embodiment discloses an axial detection device for a part. The difference between this embodiment and embodiment 1 is that a through hole is provided on the positioning plate 15 of the support assembly 10, and a support rod (not shown in the figure) is movably arranged in the through hole, and one end of the support rod is fixedly connected to a side surface of the pressure plate 122.

[0058] The micrometer threaded rod 21 of the micrometer 20 is extended to drive the pressing plate 122 to press against the end of the part, thereby achieving measurement.

[0059] The above-mentioned embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. An axial detection device for a part, characterized in that: include: A support assembly, comprising a support portion and an extrusion portion, wherein there is a distance between the support portion and the extrusion portion, and the extrusion portion can be close to or away from the support portion; The micrometer is arranged on the supporting assembly and is located at a side of the extrusion portion away from the supporting portion, and the micrometer threaded rod of the micrometer points to the extrusion portion.

2. The axial detection device for parts according to claim 1, characterized in that: The support assembly comprises: Connecting plate; A support plate, one side of which is the support portion, and one end of which is connected to one end of the connecting plate; A positioning plate, one end of which is connected to the other end of the connecting plate and is arranged parallel to the supporting plate; Wherein, the micrometer and the extrusion part are both arranged on the positioning plate.

3. The axial detection device for parts according to claim 2, characterized in that: The positioning plate is provided with a first threaded hole and a second threaded hole. The micrometer is fixedly installed in the first threaded hole, and the extrusion part is movably installed in the second threaded hole.

4. The axial detection device for parts according to claim 3 is characterized in that: The extrusion portion comprises: A screw matched with the second threaded hole; The pressing plate is located between the supporting plate and the positioning plate and is rotatably connected to one end of the screw rod.

5. The axial detection device for parts according to claim 2, characterized in that: The support portion includes a bottom plate, and the bottom plate is fixed on the support plate.

6. The axial detection device for parts according to claim 1, characterized in that: An arc-shaped handle is provided on the supporting assembly.

7. The axial detection device for parts according to claim 4, characterized in that: The pressing plate is a rectangular plate-shaped structure, and the top of the pressing plate is in sliding contact with the connecting plate.

8. The axial detection device for parts according to claim 4, characterized in that: The two side surfaces of the pressing plate are parallel to each other.

9. The axial detection device for parts according to claim 1, characterized in that: The extrusion portion is arranged at the end of the micrometer threaded rod of the micrometer.

10. The axial detection device for parts according to claim 1, characterized in that: The support assembly is provided with a through hole, the support portion is movably arranged in the through hole via a support rod, and the end of the micrometer threaded rod can contact the extrusion portion.

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