CN210512975U - Parallelism checking fixture for guide hole of caliper support of disc brake - Google Patents
Parallelism checking fixture for guide hole of caliper support of disc brake Download PDFInfo
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- CN210512975U CN210512975U CN201921091229.5U CN201921091229U CN210512975U CN 210512975 U CN210512975 U CN 210512975U CN 201921091229 U CN201921091229 U CN 201921091229U CN 210512975 U CN210512975 U CN 210512975U
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- disc brake
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Abstract
The utility model discloses an utensil is examined to disc brake pincers body support guiding hole depth of parallelism, include: the measuring base is provided with a bottom reference surface and a vertical part, the flatness of the bottom reference surface is designed to be 0.01, the measuring base is horizontally placed on the inspection flat plate, the vertical part is provided with an installation thread positioning surface, the design verticality between the installation thread positioning surface and the bottom reference surface is 0.012, and the vertical part is provided with two thread connecting holes corresponding to the two thread mounting holes on the clamp body bracket at the installation thread positioning surface; fastening screw, fastening screw and threaded connection hole and threaded mounting hole are connected to it is fixed with the measurement base with pincers body support: the two measuring rods are correspondingly inserted into the two guide holes of the clamp body bracket; and the digital display height gauge takes the bottom reference surface as a reference, a measuring rod bus is arranged, and the maximum variation is the comprehensive error of the parallelism. The utility model discloses can realize the online operation detection of work piece, improve detection efficiency, reduction in production and use cost.
Description
Technical Field
The utility model relates to a measurement detects the technique, concretely relates to pincers body support detection instrument of disc brake.
Background
The caliper body support of a disc brake in an automobile part is a heavy protection part, and in the characteristics of production requirements, the parallelism of a guide hole is one of important characteristics, and the excessive difference of the form and position tolerance dimension can cause the increase of the dragging force of the whole part assembly, thereby causing the abnormal return or the dead return of the brake caliper and directly influencing the performance of the disc brake. Therefore, the detection of the parallelism of the guide holes of the bracket is necessary. However, at present, three-coordinate detection is commonly adopted in the traditional measurement technology, the measurement time is long, the cost is high, online detection cannot be realized, and the production efficiency of products is greatly reduced.
Therefore, how to provide a detection instrument to accurately measure the parallelism of the guide hole of the bracket, have high efficiency and convenient operation, and realize on-line measurement is an important subject of research in the fields of industrial machinery and automobile accessory industry.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a utensil is examined to disc brake pincers body support guiding hole depth of parallelism is provided for measure accurate, efficient, convenient operation to support guiding hole depth of parallelism.
In order to solve the technical problem, the utility model adopts the following technical scheme:
utensil is examined to disc brake pincers body support guiding hole depth of parallelism for carry out the depth of parallelism to two guiding holes of pincers body support and detect, include:
the measuring base is provided with a bottom reference surface and a vertical part, the flatness of the bottom reference surface is designed to be 0.01, the measuring base is horizontally placed on the inspection flat plate, the vertical part is provided with an installation thread positioning surface, the design verticality between the installation thread positioning surface and the bottom reference surface is 0.012, and the vertical part is provided with two thread connecting holes corresponding to the two thread mounting holes on the clamp body bracket at the installation thread positioning surface;
the fastening screw is connected with the threaded connecting hole and the threaded mounting hole, so that the clamp body bracket is fixed with the measuring base;
the two measuring rods are correspondingly inserted into the two guide holes of the clamp body bracket;
and the digital display height gauge takes the bottom reference surface as a reference, a measuring rod bus is arranged, the maximum variation is the comprehensive error of the parallelism, and the measuring length must be more than 30 mm.
Optionally, the measuring base is a 45 steel integral casting, and the hardness is improved through heat treatment.
Optionally, the measuring rod is made of alloy tool steel Cr12, and is subjected to heat treatment to improve the hardness.
Optionally, the measuring rod pack is inserted into a guide section of the guide hole and a measuring section with a diameter larger than that of the guide section, and a tool withdrawal groove is formed in a connecting position of the guide section and the measuring section.
Optionally, the length of the guide section matched with the guide hole is not less than 1/2 of the length of the guide hole.
The above technical scheme is adopted in the utility model, during the inspection, the stick generating line is measured to the digital display tongue, and the maximum variation is the composite error of depth of parallelism promptly. Compared with the traditional three-coordinate measuring method, the on-line operation detection of the workpiece can be realized, the detection efficiency is improved, the production and use cost is reduced, and the method is suitable for detection of various supports, and is convenient and rapid.
The specific technical solution and the advantages of the present invention will be described in detail in the following detailed description with reference to the accompanying drawings.
Drawings
The invention will be further described with reference to the accompanying drawings and specific embodiments:
FIG. 1 is a sectional view of a parallelism gauge for a guide hole of a bracket of a disc brake caliper body of the present invention;
FIG. 2 is a top view of the parallelism checking fixture for the guide hole of the bracket of the disc brake caliper body of the present invention;
in the figure: 1-measuring base, 11-bottom datum plane, 12-mounting thread positioning plane, 2-measuring rod, 21-measuring section, 22-tool withdrawal groove, 3-fastening screw, 4-clamp body support and 41-guide hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It will be appreciated by those skilled in the art that features from the examples and embodiments described below may be combined with each other without conflict.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
As shown in fig. 1 and 2, the parallelism detection tool for guide holes of a caliper body bracket of a disc brake is used for detecting the parallelism of two guide holes 41 of the caliper body bracket 4, and comprises:
the measuring base 1 is provided with a bottom reference surface 11 and a vertical part, the flatness of the bottom reference surface is designed to be 0.01, the measuring base is horizontally placed on the inspection flat plate, the vertical part is provided with an installation thread positioning surface 12, the verticality of the installation thread positioning surface and the bottom reference surface is designed to be 0.012, and the vertical part is provided with two thread connecting holes corresponding to the two thread mounting holes on the clamp body bracket at the installation thread positioning surface;
the fastening screw 3 is connected with the threaded connecting hole and the threaded mounting hole, so that the clamp body bracket 4 and the measuring base 1 are fixed;
the two measuring rods are correspondingly inserted into the two guide holes 41 of the clamp body bracket;
and the digital display height gauge takes the bottom reference surface as a reference, a measuring rod bus is arranged, the maximum variation is the comprehensive error of the parallelism, and the measuring length must be more than 30 mm.
Preferably, the measuring base 1 is formed by a 45 steel integral casting, and mechanical properties such as hardness and strength are improved through heat treatment. The measuring rod 2 is made of alloy tool steel Cr12, has good hardenability and wear resistance, and improves mechanical properties such as hardness and strength through heat treatment. The fastening screw 3 is an inner hexagonal cylindrical head screw, and the material is selected from national standard GB/T70.1-2008, so that the screw meets the use requirement of strength.
The measuring rod package is inserted into a guide section of the guide hole and a measuring section 21 with the diameter larger than that of the guide section, a tool withdrawal groove 22 is formed in the connecting position of the guide section and the measuring section, and the positioning surface of the measuring rod is guaranteed to be completely attached and contacted with the surface of the guide hole of the support. The diameter of the guide section is provided with three-gear tolerance, the guide section is selected according to the actual aperture of a workpiece during use, the fit clearance is reduced, and the fit length of the guide section and the guide hole is not less than 1/2 of the length of the guide hole, so that the measurement accuracy is guaranteed.
Adopt the utility model discloses a disc brake pincers body support guiding hole depth of parallelism examines utensil and carries out the measurement step that the depth of parallelism detected to two guiding holes 41 of pincers body support 4 as follows:
1. the checking fixture takes the mounting surface of the bracket as a reference, and the two inner hexagonal socket head screws are clamped tightly;
2. the checking fixture is placed on the checking flat plate for use;
3. selecting a proper measuring rod according to the actual size of the guide hole to ensure that the fit clearance of the measuring rod is minimum;
4. during inspection, the surface A of the inspection tool is used as a reference, the measuring rod bus of the digital display height gauge is used, and the measuring length of the digital display height gauge is required to be more than 30 mm.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that the present invention includes but is not limited to the contents described in the above specific embodiments. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.
Claims (5)
1. Utensil is examined to disc brake pincers body support guiding hole depth of parallelism for carry out the depth of parallelism to two guiding holes of pincers body support and detect, its characterized in that includes:
the measuring base is provided with a bottom reference surface and a vertical part, the flatness of the bottom reference surface is designed to be 0.01, the measuring base is horizontally placed on the inspection flat plate, the vertical part is provided with an installation thread positioning surface, the design verticality between the installation thread positioning surface and the bottom reference surface is 0.012, and the vertical part is provided with two thread connecting holes corresponding to the two thread mounting holes on the clamp body bracket at the installation thread positioning surface;
fastening screw, fastening screw and threaded connection hole and threaded mounting hole are connected to it is fixed with the measurement base with pincers body support:
the two measuring rods are correspondingly inserted into the two guide holes of the clamp body bracket;
and the digital display height gauge takes the bottom reference surface as a reference, a measuring rod bus is arranged, the maximum variation is the comprehensive error of the parallelism, and the measuring length must be more than 30 mm.
2. The disc brake caliper body support guide hole parallelism detection tool according to claim 1, characterized in that: the measuring base is a 45-steel integral casting and is subjected to heat treatment to improve the hardness.
3. The disc brake caliper body support guide hole parallelism detection tool according to claim 1, characterized in that: the measuring rod is made of alloy tool steel Cr12, and is subjected to heat treatment to improve the hardness.
4. The disc brake caliper body support guide hole parallelism detection tool according to claim 3, characterized in that: the measuring rod package is inserted into the guide section of the guide hole and the measuring section with the diameter larger than that of the guide section, and a tool withdrawal groove is formed in the connecting position of the guide section and the measuring section.
5. The disc brake caliper body support guide hole parallelism detection tool according to claim 4, characterized in that: the matching length of the guide section and the guide hole is not less than 1/2 of the length of the guide hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921091229.5U CN210512975U (en) | 2019-07-12 | 2019-07-12 | Parallelism checking fixture for guide hole of caliper support of disc brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921091229.5U CN210512975U (en) | 2019-07-12 | 2019-07-12 | Parallelism checking fixture for guide hole of caliper support of disc brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210512975U true CN210512975U (en) | 2020-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921091229.5U Active CN210512975U (en) | 2019-07-12 | 2019-07-12 | Parallelism checking fixture for guide hole of caliper support of disc brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210512975U (en) |
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2019
- 2019-07-12 CN CN201921091229.5U patent/CN210512975U/en active Active
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