Conical surface measuring tool mounted on vernier caliper

Abstract

This utility model discloses a conical surface measuring fixture mounted on a vernier caliper, comprising: a pair of fixed supports, detachably and symmetrically mounted on the measuring jaws of the vernier caliper; a measuring element and a driving element are provided on the fixed supports; the measuring element is movably connected to the fixed supports, and a pair of measuring parts are symmetrically arranged at the lower end of the measuring element, the pair of measuring parts being used to measure the outer diameter of an external conical surface workpiece and the inner diameter of an internal conical surface workpiece, respectively; the driving element is rotatably connected to the fixed supports and engages with the measuring element, driving the measuring element to move up and down. This utility model is easy to assemble and disassemble, simple to manufacture, and easy to operate; through modular design, it realizes the functional expansion of the vernier caliper, meeting the need for convenient measurement of conical surface parameters in industrial settings.

Description

Technical Field

[0001] This utility model relates to the field of conical surface measurement technology, and in particular to a conical surface measurement fixture mounted on a vernier caliper. Background Technology

[0002] In parts processing and quality inspection scenarios, workpieces with angular structures often present significant challenges to inspection work. Traditional inspection methods are often inconvenient or inefficient when dealing with such parts due to their unique structure. On the other hand, using a coordinate measuring machine (CMM) for inspection has a double bottleneck: firstly, the equipment purchase and maintenance costs are high, and secondly, the operating skills required of the inspection personnel are stringent, requiring systematic training to accurately operate the equipment and complete the measurements. Summary of the Invention

[0003] According to an embodiment of the present invention, a conical surface measuring fixture mounted on a vernier caliper is provided, comprising:

[0004] A pair of fixed supports are detachably and symmetrically mounted on the measuring jaws of the vernier caliper;

[0005] The fixed bracket is equipped with measuring components and driving components;

[0006] The measuring component is movably connected to the fixed bracket. A pair of measuring parts are symmetrically arranged at the lower end of the measuring component. The pair of measuring parts are used to measure the outer diameter of the outer conical surface workpiece and the inner diameter of the inner conical surface workpiece, respectively.

[0007] The drive unit is rotatably connected to the fixed bracket and connected to the measuring component, which can drive the measuring component to move up and down.

[0008] Furthermore, the fixed bracket is provided with a first positioning groove, into which the measuring claw can be inserted.

[0009] Furthermore, a first round-headed set screw is provided on the front of the fixed bracket, and a manual tightening screw is provided on the side; the first round-headed set screw and the manual tightening screw are used to detachably fix the fixed bracket to the measuring jaws of the vernier caliper.

[0010] Furthermore, the fixed bracket is also provided with a second positioning groove, into which the measuring component can be movably inserted and can move up and down along the second positioning groove.

[0011] Furthermore, the measuring component has a row of teeth, and the driving component has a gear. The gear meshes with the teeth, and the rotation of the driving component drives the gear to rotate. The gear drives the measuring component to move up and down through the teeth.

[0012] Furthermore, a guide bar is provided in the second positioning groove, and a guide groove coupled with the guide bar is provided on the measuring component.

[0013] Furthermore, a second round-headed screw is provided on the side of the fixed bracket to clamp the measuring component.

[0014] Furthermore, the measuring component is also equipped with a scale, which is used to indicate the height the measuring component descends.

[0015] Furthermore, the outer end face of the measuring part inside the measuring piece is flush with the measuring end face of the measuring jaw of the vernier caliper.

[0016] The conical surface measuring fixture installed on the vernier caliper according to the present invention is easy to install and disassemble, simple to manufacture, and easy to operate. Through modular design, the function of the vernier caliper is expanded, which can meet the needs of convenient measurement of conical surface parameters in industrial field.

[0017] It should be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further illustration of the claimed technology. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure when measuring the inner conical surface according to an embodiment of the present invention;

[0019] Figure 2 for Figure 1 The main view;

[0020] Figure 3 This is a schematic diagram of the measuring fixture assembled on the measuring jaws according to an embodiment of the present invention;

[0021] Figure 4 This is a diagram showing the fit between the measuring component, the driving component, and the second round head screw according to an embodiment of the present invention.

[0022] Figure 5 This is a schematic diagram of the measuring fixture used to measure the outer conical surface according to an embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the measuring component according to an embodiment of the present utility model. Detailed Implementation

[0024] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, further illustrating the present invention.

[0025] First, combine Figures 1-6 The present invention describes a conical surface measuring fixture mounted on a vernier caliper according to an embodiment of the present invention, which is used for measuring conical surfaces and has a wide range of applications.

[0026] like Figures 1-6 As shown, the conical surface measuring fixture mounted on a vernier caliper according to an embodiment of this utility model includes:

[0027] A pair of fixed brackets 1 are detachably and symmetrically mounted on the measuring jaws 71 of the vernier caliper 7;

[0028] The fixed bracket 1 is equipped with a measuring element 2 and a driving element 3;

[0029] The measuring component 2 is movably connected to the fixed bracket 1. A pair of measuring parts 21 are symmetrically arranged at the lower end of the measuring component 2. The pair of measuring parts 21 are used to measure the outer diameter D1 of the outer conical surface workpiece and the inner diameter D2 of the inner conical surface workpiece, respectively.

[0030] The driving component 3 is rotatably connected to the fixed bracket 1 and connected to the measuring component 2, and can drive the measuring component 2 to move up and down.

[0031] Furthermore, such as Figure 3 As shown, in this embodiment, the fixed bracket 1 is provided with a first positioning groove 11, and the measuring claw 71 can be inserted into the first positioning groove 11.

[0032] Furthermore, such as Figure 1 , 3 As shown, in this embodiment, the fixed bracket 1 is provided with a first round-headed set screw 4 at the front and a manual tightening screw 5 on the side; after the measuring claw 71 is inserted into the corresponding first positioning groove 11, the first round-headed set screw 4 and the manual tightening screw 5 are used to detachably fix the fixed bracket 1 to the measuring claw 71 of the vernier caliper 7.

[0033] Furthermore, such as Figure 3 As shown, in this embodiment, the fixed bracket 1 is also provided with a second positioning groove 12. The measuring component 2 is movably inserted into the second positioning groove 12 and can move up and down along the second positioning groove 12 to measure the diameter of the top and bottom of the workpiece.

[0034] Furthermore, such as Figures 3-4 As shown in Figures 6 and 7, in this embodiment, the measuring component 2 is provided with a row of teeth 22, and the driving component 3 is provided with a gear 31. The gear 31 meshes with the teeth 22. The rotation of the driving component 3 drives the gear 31 to rotate, and the gear 31 drives the measuring component 2 to move up and down through the teeth 22.

[0035] Furthermore, such as Figures 3-4 As shown in Figures 6 and 7, in this embodiment, a guide bar 121 is also provided in the second positioning groove 12, and a guide groove 23 coupled with the guide bar 121 is provided on the measuring component 2. The guide bar 121 and the guide groove 23 cooperate to make the measuring component 2 move vertically up and down.

[0036] Furthermore, such as Figure 1 , 3As shown, in this embodiment, the side of the fixed bracket 1 is also provided with a second round-headed set screw 6 to clamp the measuring member 2, so that the measuring member 2 is in close contact with the second positioning groove 12, so that the outer end face of the measuring part 21 on the inner side of the measuring member 2 is flush with the measuring end face of the measuring jaw 71 of the vernier caliper 7. That is to say, when measuring the outer conical surface, the distance between the measuring members 2 on the inner side of a pair of measuring members 2 is equal to the distance between the measuring jaws 71 of the vernier caliper 7 (that is, the reading of the vernier caliper 7), thereby eliminating measurement error and eliminating the need for secondary conversion.

[0037] Furthermore, in this embodiment, the measuring element 2 is also provided with a scale (not shown in the figure), which is used to indicate the height at which the measuring element 2 descends.

[0038] Furthermore, in this embodiment, the fixed bracket 1 can be divided into front and rear parts to facilitate the slotting of the first positioning groove 11 and the second positioning groove 12, as well as the assembly of the measuring component 2 and the driving component 3, which are conventional technical means for those skilled in the art.

[0039] Working principle:

[0040] Installation process: Place the fixed bracket 1 onto the corresponding measuring claw 71, that is, insert the measuring claw 71 into the first positioning groove 11 to the predetermined depth. First tighten the manual tightening screw 5, then tighten the first round head set screw 4 to fix the measuring claw 71 to the fixed bracket 1. Make sure the lower ends of the pair of measuring parts 2 are on the same plane, and tighten the second round head set screw 6 to fix the position of the measuring parts 2.

[0041] When measuring the outer conical surface, first measure the diameter at the top, then loosen the second round head screw 6, and then rotate the drive component 3. The gear 31 on the drive component 3 drives the measuring component 2 to extend through the teeth 22 on the measuring component 2. After the measuring component 2 extends to a specified length, tighten the second round head screw 6 so that the top of the outer conical surface contacts the bottom plane of the fixed bracket 1. At this time, the extension length of the measuring component 2 is the height of the conical surface. The distance D1 between the inner measuring parts 21 of a pair of measuring components 2 is the diameter at the bottom of the outer conical surface (this diameter is the reading of the vernier caliper 7). Then, calculate the conical angle of the conical surface according to the trigonometric function relationship.

[0042] When measuring the inner conical surface, the operation steps are similar to those for measuring the outer conical surface. In this process, the diameter D2 of the inner conical surface is measured using the measuring part 21 on the outer side of a pair of measuring parts 2. This diameter is calculated by adding twice the distance d between the end faces of the symmetrical measuring parts 21 on the measuring parts 2 to the reading of the vernier caliper 7 (i.e., the diameter D2 = the reading of the vernier caliper 7 + 2 * d).

[0043] Above, refer to Figures 1-6This invention describes a conical surface measuring fixture mounted on a vernier caliper according to an embodiment of the present invention. It is easy to assemble and disassemble, simple to manufacture, and easy to operate. Through modular design, the functionality of the vernier caliper is expanded, meeting the needs of convenient measurement of conical surface parameters in industrial settings.

[0044] It should be noted that, in this specification, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes that element.

[0045] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above content. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A conical measuring fixture mounted on a vernier caliper, characterized in that, Include: A pair of fixed supports, which are detachably and symmetrically mounted on the measuring jaws of the vernier caliper; The fixed bracket is equipped with measuring components and driving components; The measuring component is movably connected to the fixed bracket, and a pair of measuring parts are symmetrically arranged at the lower end of the measuring component; The driving component is rotatably connected to the fixed bracket and engaged with the measuring component, and can drive the measuring component to move up and down.

2. The conical measuring fixture mounted on a vernier caliper as described in claim 1, characterized in that, The fixed bracket is provided with a first positioning groove, and the measuring claw can be inserted into the first positioning groove.

3. The conical measuring fixture mounted on a vernier caliper as described in claim 2, characterized in that, The fixed bracket is provided with a first round-headed set screw at the front and a manual tightening screw on the side; the first round-headed set screw and the manual tightening screw are used to detachably fix the fixed bracket to the measuring jaw of the vernier caliper.

4. The conical measuring fixture mounted on a vernier caliper as described in claim 1, characterized in that, The fixed bracket is also provided with a second positioning groove, and the measuring element is movably inserted into the second positioning groove and can move up and down along the second positioning groove.

5. The conical measuring fixture mounted on a vernier caliper as described in claim 4, characterized in that, The measuring component has a row of teeth, and the driving component has a gear. The gear meshes with the teeth, and the rotation of the driving component drives the gear to rotate. The gear drives the measuring component to move up and down through the teeth.

6. The conical measuring fixture mounted on a vernier caliper as described in claim 4, characterized in that, The second positioning groove is also provided with a guide bar, and the measuring component is provided with a guide groove coupled to the guide bar.

7. The conical measuring fixture mounted on a vernier caliper as described in claim 1, characterized in that, The side of the fixed bracket is also provided with a second round-headed top screw to clamp the measuring component.

8. The conical measuring fixture mounted on a vernier caliper as described in claim 1, characterized in that, The measuring element is also provided with a scale, which is used to indicate the height the measuring element descends.

9. The conical measuring fixture mounted on a vernier caliper as described in claim 1, characterized in that, The outer end face of the measuring part inside the measuring component is flush with the measuring end face of the measuring jaw of the vernier caliper.

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