A groove diameter inspection tool

Abstract

The present application discloses a slot diameter gauge, comprising: a base, provided with a mounting slot; a gauge assembly, installed in the mounting slot, at least four of the gauge assemblies are provided, at least four of the gauge assemblies are arranged in a ring shape in the mounting slot, and there are intervals between adjacent gauge assemblies, and at least four of the gauge assemblies are surrounded by test holes; and an elastic assembly, connecting the gauge assembly and the side wall of the mounting slot, the gauge assembly can move in a direction approaching each other under the elastic force of the elastic assembly; and a test rod; wherein an inspection portion is formed on a protrusion on the outer wall of the gauge assembly, the gauge assembly can be extended into a workpiece of a slot diameter to be measured, and the test rod can be extended into the test hole to drive the gauge assembly to move in a direction away from each other, thereby making the inspection portion fit with the slot diameter to be measured in the workpiece for inspection, which is simple and convenient, with high detection efficiency and good accuracy.

Description

Technical Field

[0001] The present application belongs to the technical field of gauge equipment, and specifically relates to a groove diameter gauge. Background Art

[0002] Spherical connectors are widely used in the connection of mechanical parts. They have the advantages of good connection performance, high structural flexibility after connection, less movement wear, and high overall practicality. In order to facilitate the connection, the inside of the spherical connector will be recessed to form an annular connection groove, and other parts can be firmly connected to the spherical connector through parts that match the annular connection groove.

[0003] After the spherical connector is processed, the groove diameter of the annular connecting groove needs to be inspected to check whether it meets the processing standards. In the prior art, it is usually necessary to separate the two spherical connectors that are combined together and use measuring tools to check them separately. However, this inspection method is difficult to inspect using general methods because the bottom of the annular connecting groove is arc-shaped. The inspection accuracy is insufficient, which will result in large tolerances of the workpieces after leaving the factory, affecting product quality.

[0004] Therefore, it is necessary to improve the prior art to overcome the above defects in the prior art. Utility Model Content

[0005] Therefore, the technical problem to be solved by the utility model is to provide a convenient and accurate groove diameter measuring tool.

[0006] In order to solve the above technical problems, the utility model provides a groove diameter gauge, comprising:

[0007] A base having a mounting slot;

[0008] A gauge assembly is installed in the installation slot, at least four gauge assemblies are provided, at least four gauge assemblies are arranged in a ring shape in the installation slot, and there is a spacing between adjacent gauge assemblies, and at least four gauge assemblies are surrounded to form a test hole; and

[0009] an elastic component, connecting the gauge component and the side wall of the mounting groove, wherein the gauge component can move toward each other under the elastic force of the elastic component; and

[0010] Test rod;

[0011] Among them, the outer wall protrusion of the gauge assembly forms an inspection part, the gauge assembly can be extended into the workpiece with the groove diameter to be measured, and the test rod can be extended into the test hole to drive the gauge assembly to move in the direction away from each other, so that the inspection part fits with the groove diameter to be measured in the workpiece for inspection.

[0012] Further, the inspection tool assembly includes a mounting portion mounted in the mounting groove and a bending portion formed by bending from the mounting portion toward a direction away from the mounting groove, and the inspection portion is formed on the bending portion.

[0013] Furthermore, an outer wall of the bending portion away from the inspection portion has an arc-shaped surface.

[0014] Further, the test rod comprises a first rod body, a second rod body and a third rod body which are connected in sequence, and the diameters of the first rod body, the second rod body and the third rod body increase in sequence.

[0015] Furthermore, the test rod also includes a handle portion connected to the third rod body.

[0016] Furthermore, the mounting portion is formed with a receiving groove, the elastic component is placed in the receiving groove, and two ends of the elastic component are respectively abutted against the bottom of the receiving groove and the side wall of the mounting groove.

[0017] Furthermore, the groove diameter gauge further comprises a cover plate connected to the base, and the cover plate is covered on the mounting groove;

[0018] The cover plate has a first through hole in the middle, and the bent portion extends out of the mounting groove through the first through hole.

[0019] Furthermore, the cover plate has a first mounting hole, the base has a second mounting hole corresponding to the first mounting hole, and the groove diameter gauge also includes a connecting piece, which passes through the first mounting hole and is installed in the second mounting hole to install and fix the cover plate and the base.

[0020] Furthermore, a second through hole is formed at the bottom of the mounting groove and penetrates the base, and the second through hole and the test hole are on the same center line.

[0021] Furthermore, the connection between the first rod body and the second rod body and the connection between the second rod body and the third rod body is an inclined surface.

[0022] The technical solution provided by the utility model has the following advantages: the slot diameter gauge of the utility model is provided with a base, a gauge component installed in the mounting slot of the base, an elastic component connecting the gauge component and the side wall of the mounting slot, and a test rod, wherein at least four gauge components are provided, at least four gauge components are arranged in a ring shape in the mounting slot, there is a spacing between adjacent gauge components, at least four gauge components are surrounded to form a test hole, the gauge component can move in a direction approaching each other under the elastic force of the elastic component, the outer wall of the gauge component is convex to form an inspection part, the gauge component can be extended into the workpiece of the slot diameter to be measured, the test rod can be extended into the test hole to drive the gauge component to move in a direction away from each other, so that the inspection part is matched with the slot diameter to be measured in the workpiece, so as to inspect the slot diameter, which is simple and convenient, with high inspection efficiency and good accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a structural schematic diagram of the groove diameter inspection tool of the utility model;

[0025] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure of the groove diameter gauge. DETAILED DESCRIPTION

[0026] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments. The utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0027] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0028] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.

[0029] See also Figure 1 to Figure 2 As shown, a slot diameter gauge comprises a base 1 and a gauge assembly 2, wherein the base 1 has a mounting groove 11, and the gauge assembly 2 is installed in the mounting groove 11. In this embodiment, at least four gauge assemblies 2 are provided, and at least four gauge assemblies 2 are arranged in a ring shape in the mounting groove 11, and there is a spacing between adjacent gauge assemblies 2, and at least four gauge assemblies 2 are surrounded to form a test hole 21.

[0030] The slot diameter gauge also includes an elastic component 3 and a test rod 4 connecting the gauge assembly 2 and the side wall 111 of the mounting slot 11. The gauge assembly 2 can move in a direction close to each other under the elastic force of the elastic component 3, thereby reducing the volume of the entire gauge assembly 2 so that it can smoothly enter the workpiece 5. Among them, the outer wall protrusion of the gauge assembly 2 forms an inspection portion 22, the gauge assembly 2 can be extended into the workpiece 5 of the slot diameter 51 to be measured, and the test rod 4 can be extended into the test hole 21 to drive the gauge assembly 2 to move in a direction away from each other, thereby making the inspection portion 22 fit with the slot diameter 51 to be measured in the workpiece 5 for inspection. Compared with the traditional inspection method, this process is simpler and has high measurement accuracy.

[0031] Specifically, the inspection fixture assembly 2 includes a mounting portion 23 installed in the mounting groove 11 and a bent portion 24 formed by bending from the mounting portion 23 toward a direction away from the mounting groove 11. The inspection portion 22 is formed on the bent portion 24. When inspecting the groove diameter 51 to be measured, it extends into the workpiece 5 through the bent portion 24, and then the test rod 4 is inserted to open the test hole 21, so that the inspection portion 22 is matched with the groove diameter 51 to be measured in the workpiece 5 for inspection.

[0032] It is worth noting that the outer wall of the bending portion 24 away from the inspection portion 22 has an arc surface 241, which facilitates the insertion operation of the test rod 4 and makes the detection process smoother.

[0033] The test rod 4 includes a first rod body 41, a second rod body 42 and a third rod body 43 connected in sequence. In this embodiment, the diameters of the first rod body 41, the second rod body 42 and the third rod body 43 increase in sequence, and when the first rod body 41 is located in the test hole 21, there is a gap between the inspection portion 22 and the groove diameter 51 to be measured. When the second rod body 42 is located in the test hole 21, the inspection portion 22 and the groove diameter 51 to be measured fit each other. If the test rod 4 is continued to be inserted at this time, if the third rod body 43 cannot enter the test hole 21, it means that the size of the groove diameter 51 to be measured of the workpiece 5 is correct. If the third rod body 43 can continue to be inserted into the test hole 21, it means that the size of the groove diameter 51 to be measured of the workpiece 5 is too large, there is an error in the processing, and the workpiece 5 is unqualified.

[0034] In other embodiments, the rod diameter and number of the corresponding test rod 4 may be selected according to actual conditions. For example, the first rod 41 may not be provided, and a second rod 42 and a third rod 43 connected therebetween may be provided. As long as the actual needs can be met, no specific limitation is made here.

[0035] In order to facilitate the test personnel to hold or connect the equipment, the test rod 4 also includes a handle part 44 connected to the third rod body 43. The operator can hold the handle part 44 for measurement and detection during inspection. For example, the handle part 44 can be connected to the mechanical equipment for automatic testing through mechanical equipment, which is simple and convenient.

[0036] Furthermore, the connection between the first rod body 41 and the second rod body 42 and the second rod body 42 and the third rod body 43 is an inclined surface 45, so as to facilitate the gradual extension of the test rod 4 and facilitate the insertion.

[0037] The mounting portion 23 is formed with a receiving groove 231, and the elastic component 3 is placed in the receiving groove 231. The two ends of the elastic component 3 are respectively in contact with the bottom of the receiving groove 231 and the side wall 111 of the mounting groove 11, so that the gauge component 2 is moved toward each other through its own elastic action. In this embodiment, the elastic component 3 is a spring. In other embodiments, the corresponding elastic component 3, such as an elastic ball, etc., can also be selected according to actual conditions, as long as it can meet actual needs, and no specific limitation is made here.

[0038] In order to better fix the gauge assembly 2 in the mounting groove 11, the slot gauge further includes a cover plate member 6 connected to the base 1, the cover plate member 6 is covered on the mounting groove 11, the middle of the cover plate member 6 has a first through hole 61, and the bent portion 24 extends out of the mounting groove 11 through the first through hole 61. The cover plate has a first mounting hole 62, and the base 1 has a second mounting hole 12 corresponding to the first mounting hole 62. The slot gauge further includes a connecting member, which passes through the first mounting hole 62 and is installed in the second mounting hole 12 to install and fix the cover plate and the base 1, so that the mounting portion 23 can only perform translational movement in the mounting groove 11.

[0039] It is worth noting that a second through hole 13 is formed at the bottom of the mounting groove 11 through the base 1, and the second through hole 13 and the test hole 21 are on the same center line. Therefore, when the test rod 4 is inserted for testing, part of the test rod 4 passing through the test hole 21 can extend into the second through hole 13, which is convenient for testing.

[0040] In summary, the slot diameter gauge of the utility model comprises a base, a gauge assembly installed in the mounting slot of the base, an elastic assembly connecting the gauge assembly and the side wall of the mounting slot, and a test rod, wherein at least four gauge assemblies are arranged in a ring shape in the mounting slot, there is a spacing between adjacent gauge assemblies, at least four gauge assemblies are surrounded to form a test hole, the gauge assembly can move in a direction approaching each other under the elastic force of the elastic assembly, the outer wall of the gauge assembly is convex to form an inspection part, the gauge assembly can be extended into the workpiece of the slot diameter to be measured, the test rod can be extended into the test hole to drive the gauge assembly to move in a direction away from each other, so that the inspection part is matched with the slot diameter to be measured in the workpiece, thereby inspecting the slot diameter, which is simple and convenient, with high inspection efficiency and good accuracy.

[0041] Obviously, the above described embodiments are only a part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, ordinary technicians in this field can make other different forms of changes or modifications without creative work, which should fall within the scope of protection of the utility model.

Claims

1. A groove diameter gauge, characterized in that: include: A base having a mounting slot; A gauge assembly is installed in the installation slot, at least four gauge assemblies are provided, at least four gauge assemblies are arranged in a ring shape in the installation slot, and there is a spacing between adjacent gauge assemblies, and at least four gauge assemblies are surrounded to form a test hole; as well as an elastic component, connecting the gauge component and the side wall of the mounting groove, wherein the gauge component can move toward each other under the elastic force of the elastic component; and Test rod; Among them, the outer wall protrusion of the gauge assembly forms an inspection part, the gauge assembly can be extended into the workpiece with the groove diameter to be measured, and the test rod can be extended into the test hole to drive the gauge assembly to move in the direction away from each other, so that the inspection part fits with the groove diameter to be measured in the workpiece for inspection.

2. The groove diameter gauge according to claim 1, characterized in that: The inspection tool assembly includes a mounting portion mounted in the mounting groove and a bending portion formed by bending from the mounting portion toward a direction away from the mounting groove, and the inspection portion is formed on the bending portion.

3. The groove diameter gauge according to claim 2, characterized in that: An outer wall of the bending portion away from the inspection portion has an arc-shaped surface.

4. The groove diameter gauge according to claim 3, characterized in that: The test rod comprises a first rod body, a second rod body and a third rod body which are connected in sequence, and the diameters of the first rod body, the second rod body and the third rod body increase in sequence.

5. The groove diameter gauge according to claim 4, characterized in that: The test rod also includes a handle portion connected to the third rod body.

6. The groove diameter gauge according to claim 5, characterized in that: The mounting portion is formed with a receiving groove, the elastic component is placed in the receiving groove, and two ends of the elastic component are respectively in contact with the bottom of the receiving groove and the side wall of the mounting groove.

7. The groove diameter gauge according to claim 6, characterized in that: The groove diameter gauge also includes a cover plate connected to the base, and the cover plate is covered on the mounting groove; The cover plate has a first through hole in the middle, and the bent portion extends out of the mounting groove through the first through hole.

8. The groove diameter gauge according to claim 7, characterized in that: The cover plate has a first mounting hole, the base has a second mounting hole corresponding to the first mounting hole, and the groove diameter gauge further includes a connecting piece, which passes through the first mounting hole and is installed in the second mounting hole to install and fix the cover plate and the base.

9. The groove diameter gauge according to claim 8, characterized in that: A second through hole is formed at the bottom of the mounting groove through the base, and the second through hole and the test hole are on the same center line.

10. The groove diameter gauge according to claim 9, characterized in that: The connection points between the first rod body and the second rod body and between the second rod body and the third rod body are inclined surfaces.

Images