Auxiliary device suitable for precise workpiece dimension measurement

Abstract

The utility model provides an auxiliary device suitable for precise workpiece dimension measurement, which comprises a device main body, an external diameter measurement slide block, a centering mechanism and a connecting piece, and four corners of the lower end of the internal composition of the device main body are provided with support legs for stable support. The beneficial effects of the utility model are that the device main body and the centering mechanism are added, a to-be-measured annular precision workpiece passes through the centering mechanism and is placed on the upper surface of the measuring table, and the centering cylinder drives the central cylinder to move downwards, so that the three groups of centering slide blocks slide along the centering slide grooves; the three sets of arc-shaped clamping columns jointly clamp and adjust the inner side face of the annular precise workpiece, the circle center of the annular precise workpiece and the center of the center column body are located on the same straight line, the outer diameter measuring sliding block is pulled to slide on the inner side of the outer diameter measuring sliding groove, then the outer diameter size is measured, and the measuring accuracy can be improved; the device can measure the thickness of a circular precision workpiece.

Description

Technical Field

[0001] The utility model belongs to the technical field of workpiece size measurement auxiliary devices, and particularly relates to an auxiliary device suitable for measuring the size of precision workpieces. Background Technique

[0002] The size measurement of workpieces is an important link in production and processing. In production and processing, it is necessary to accurately measure the size of workpieces to ensure the normal progress of subsequent production links. However, when it comes to precision workpieces, especially some circular precision workpieces, there are some deficiencies in the measurement of their outer diameter sizes. The common measurement methods mostly rely on manual use of tools such as vernier calipers to measure the outer diameter size. However, this measurement method cannot accurately align with the two endpoints where the outer diameter is located, resulting in some deviations in actual measurement. For precision workpieces, even a small size deviation will cause problems such as inability to assemble or the existence of assembly gaps in subsequent production, rendering the precision workpieces unusable and requiring secondary processing or scrapping.

[0003] Secondly, when the size of the circular workpiece is large, the deviation will be even greater when manually using tools such as vernier calipers for measurement, and it is necessary to manually operate tools such as vernier calipers with a large volume and large weight for measurement, making the measurement process inconvenient.

[0004] In summary, there are some deficiencies in the traditional manual method for measuring the outer diameter of circular precision workpieces. Therefore, it is hoped to propose a new structure to solve the above technical problems. Summary of the Invention

[0005] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide an auxiliary device suitable for measuring the size of precision workpieces, and solve the problems raised in the above background technique.

[0006] The utility model is realized through the following technical solutions: An auxiliary device suitable for measuring the size of precision workpieces, comprising: a device main body, an outer diameter measurement slider, a centering mechanism, and a connecting piece. At the four corners of the lower end of the internal composition of the device main body, there are all provided with legs for stable support. Above the legs, there is a measurement table for carrying and placing the workpiece to be measured. At the center of the upper surface of the measurement table, there is a centering cylinder for pushing the centering mechanism to move. Above the centering cylinder, there is a centering mechanism for circularly positioning the circular workpiece. On the right end of the upper surface of the measurement table, there is an outer diameter measurement sliding groove for linearly guiding the outer diameter measurement slider. Inside the outer diameter measurement sliding groove, there is an outer diameter measurement slider for measuring the outer diameter of the circular workpiece. At the upper end of the centering cylinder, there is a push rod. At the upper end of the rear side of the push rod, there is a connection hole. Inside the connection hole, there is a connecting piece for connecting and fixing the centering cylinder and the centering mechanism.

[0007] As a preferred embodiment, three centering chutes for guiding the centering mechanism are provided on the upper surface of the measuring table and around the centering cylinder, and are evenly distributed in a circumferential manner. The upper end of the internal components of the centering mechanism is provided with a central column body.

[0008] As a preferred embodiment, three upper rotation grooves are provided on the lower end of the outer side surface of the central column body and are evenly distributed in a circumferential manner. A centering rod is provided inside the upper rotation groove. The upper end of the centering rod is connected to the upper rotation groove through a damping rotating shaft. The upper end of the centering rod is connected through a damping rotating shaft, enabling it to adaptively adjust the angle following the up and down movement of the central column body.

[0009] As a preferred embodiment, a lower rotation block is provided at the lower end of the centering rod. A set of rotation seats are provided on both the front and rear sides of the lower rotation block. The rotation seat and the lower rotation block are also connected through a damping rotating shaft. The connection between the lower rotation block and the rotation seat through the damping rotating shaft enables the centering rod to push the centering slider to slide inside the centering chute.

[0010] As a preferred embodiment, a centering slider is provided below the rotation seat. The centering slider and the centering chute are movably fitted with each other. An arc-shaped clamping column is provided at one end of the upper surface of the centering slider away from the center of the central column body;

[0011] The outer diameter measuring slider and the outer diameter measuring chute are movably fitted with each other. An outer diameter scale mark is provided on the upper surface of the measuring table and at the rear side of the outer diameter measuring chute. Pulling the outer diameter measuring slider to slide inside the outer diameter measuring chute enables the inner side surface of the outer diameter measuring slider to fit against the outer side surface of the circular ring-shaped precision workpiece, and the outer diameter dimension can be read through the outer diameter scale mark.

[0012] As a preferred embodiment, a connecting column is provided at the center of the surface of the central column body. A fitting hole is provided on the lower surface of the connecting column, and a connecting threaded hole is provided on the rear side surface of the connecting column;

[0013] The upper end of the push rod is fitted with the fitting hole. A connecting stud is provided at the front end of the connecting member. The connecting stud is in threaded fit with the connecting threaded hole.

[0014] As a preferred embodiment, a thickness measuring chute is provided on the left side surface of the outer diameter measuring slider. A thickness measuring slider is provided inside the thickness measuring chute. A thickness scale mark is provided at the rear end of the left side surface of the outer diameter measuring slider. Pulling the thickness measuring slider to slide inside the thickness measuring chute enables the thickness of the circular ring-shaped precision workpiece to be measured.

[0015] After adopting the above technical solution, the beneficial effects of the present utility model are as follows: By adding the device main body and the centering mechanism, the circular precision workpiece to be measured is placed on the upper surface of the measuring table through the centering mechanism. The centering cylinder drives the central column body to move downward, so that the three centering sliders slide along the centering chute, and the three arc-shaped clamping columns jointly clamp and adjust the inner side of the circular precision workpiece, making the center of the circular precision workpiece and the center of the central column body located on the same straight line. Pull the outer diameter measuring slider to slide inside the outer diameter measuring chute to measure the outer diameter size, which can improve the measurement accuracy. By adding the device main body, the thickness of the circular precision workpiece can be measured. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 FIG. is the overall structural schematic diagram of an auxiliary device for measuring the dimensions of precision workpieces according to the present utility model.

[0018] Figure 2 FIG. is the structural schematic diagram of the device main body in an auxiliary device for measuring the dimensions of precision workpieces according to the present utility model.

[0019] Figure 3 is Figure 2 the enlarged view at A in

[0020] Figure 4 FIG. is the structural schematic diagram of the centering mechanism in an auxiliary device for measuring the dimensions of precision workpieces according to the present utility model.

[0021] Figure 5 FIG. is the structural schematic diagram of the connecting member in an auxiliary device for measuring the dimensions of precision workpieces according to the present utility model.

[0022] In the figure, 100 - device main body, 101 - leg, 102 - measuring table, 103 - centering chute, 104 - centering cylinder, 105 - outer diameter measuring chute, 106 - outer diameter scale mark, 107 - outer diameter measuring slider, 108 - thickness measuring chute, 109 - thickness measuring slider, 110 - thickness scale mark;

[0023] 200 - centering mechanism, 201 - central column body, 202 - connecting column, 203 - fitting hole, 204 - connecting threaded hole, 205 - centering rod, 206 - lower rotating block, 207 - rotating seat, 208 - centering slider;

[0024] 300 - Connecting piece, 301 - Connecting stud. Specific implementation mode

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1 to 5 , the present utility model provides a technical solution: an auxiliary device suitable for measuring the size of precision workpieces, including: a device main body 100, an outer diameter measuring slider 107, a centering mechanism 200, and a connecting piece 300. At the four corners of the lower end of the internal composition of the device main body 100, there are support legs 101 for stable support;

[0027] Above the support legs 101, there is a measuring table 102 for carrying and placing the workpiece to be measured. At the center of the upper surface of the measuring table 102, there is a centering cylinder 104 for pushing the centering mechanism 200 to move. Above the centering cylinder 104, there is a centering mechanism 200 for circularly positioning the circular workpiece;

[0028] On the right end of the upper surface of the measuring table 102, there is an outer diameter measuring chute 105 for linearly guiding the outer diameter measuring slider 107. Inside the outer diameter measuring chute 105, there is an outer diameter measuring slider 107 for measuring the outer diameter of the circular workpiece. At the upper end of the centering cylinder 104, there is a push rod. At the upper end of the rear side of the push rod, there is a connection hole. Inside the connection hole, there is a connecting piece 300 for connecting and fixing the centering cylinder 104 and the centering mechanism 200.

[0029] On the upper surface of the measuring table 102 and around the centering cylinder 104, there are three centering chutes 103 arranged in a circumferential equally divided distribution for guiding the centering mechanism 200. At the upper end of the internal composition of the centering mechanism 200, there is a central column body 201.

[0030] At the lower end of the outer side of the central column body 201, there are three upper rotation grooves arranged in a circumferential equally divided distribution. Inside the upper rotation grooves, there are centering rods 205. The upper ends of the centering rods 205 are connected to the upper rotation grooves through damping rotating shafts. The upper ends of the centering rods 205 are connected through damping rotating shafts, enabling them to adaptively adjust the angle following the up and down movement of the central column body 201.

[0031] The lower end of the centering rod 205 is provided with a lower rotating block 206. A set of rotating seats 207 are provided on both the front and rear sides of the lower rotating block 206. The rotating seats 207 and the lower rotating block 206 are also connected by a damping rotating shaft. The lower rotating block 206 and the rotating seats 207 are connected by a damping rotating shaft, which enables the centering rod 205 to push the centering slider 208 to slide inside the centering chute 103.

[0032] A centering slider 208 is provided below the rotating seat 207. The centering slider 208 and the centering chute 103 are movably fitted with each other. An arc-shaped clamping column is provided at one end of the upper surface of the centering slider 208 away from the center of the central column body 201.

[0033] The outer diameter measuring slider 107 and the outer diameter measuring chute 105 are movably fitted with each other. An outer diameter scale mark 106 is provided on the upper surface of the measuring table 102 and at the rear side of the outer diameter measuring chute 105. Pulling the outer diameter measuring slider 107 to slide inside the outer diameter measuring chute 105 can make the inner side surface of the outer diameter measuring slider 107 fit with the outer side surface of the circular ring precision workpiece, and the outer diameter dimension can be read through the outer diameter scale mark 106.

[0034] Please refer to Figures 1 - 2 and Figure 4 As the first embodiment of the present invention: First, the user places the circular ring precision workpiece to be measured through the centering mechanism 200 on the upper surface of the measuring table 102. The centering cylinder 104 drives the central column body 201 to move downward, so that the three centering sliders 208 slide along the inside of the centering chute 103. During the movement of the centering slider 208, the upper end of the centering rod 205 and the upper rotating groove are connected by a damping rotating shaft, and the lower rotating block 206 and the rotating seat 207 are connected by a damping rotating shaft, which enables the centering rod 205 to adjust the angle adaptively, so that the three arc-shaped clamping columns jointly clamp and adjust the inner side surface of the circular ring precision workpiece, making the center of the circular ring precision workpiece and the center of the central column body 201 on the same straight line. Second, pulling the outer diameter measuring slider 107 to slide inside the outer diameter measuring chute 105 can make the inner side surface of the outer diameter measuring slider 107 fit with the outer side surface of the circular ring precision workpiece, and the outer diameter dimension can be read through the outer diameter scale mark 106, thereby enabling the auxiliary centering of the circular ring workpiece to improve the measurement accuracy.

[0035] A connecting column 202 is provided at the center of the surface of the central column body 201. A fitting hole 203 is opened on the lower surface of the connecting column 202, and a connecting threaded hole 204 is opened on the rear side surface of the connecting column 202.

[0036] The upper end of the push rod is fitted with the fitting hole 203. The front end of the connecting member 300 is provided with a connecting stud 301, and the connecting stud 301 is in threaded fit with the connecting threaded hole 204.

[0037] Please refer to Figures 1 - 2 and Figure 4, as the second embodiment of the present utility model: Based on the above first embodiment, the user fits the upper end of the push rod with the fitting hole 203, screws the connecting stud 301 of the connecting member 300 into the connecting threaded hole and passes through the connecting hole, and fixedly connects the centering mechanism 200 and the centering cylinder 104, enabling convenient disassembly and assembly between the centering mechanism 200 and the centering cylinder 104.

[0038] A thickness measurement chute 108 is provided on the left side surface of the outer diameter measurement slider 107. A thickness measurement slider 109 is provided inside the thickness measurement chute 108. A thickness scale mark 110 is provided at the rear end of the left side surface of the outer diameter measurement slider 107. By pulling the thickness measurement slider 109 to slide inside the thickness measurement chute 108, the thickness of the circular ring-shaped precision workpiece can be measured.

[0039] Please refer to Figures 1 - 3 , as the third embodiment of the present utility model: When the inner side surface of the outer diameter measurement slider 107 is in contact with the outer side surface of the circular ring-shaped precision workpiece, the user pulls the thickness measurement slider 109 to slide inside the thickness measurement chute 108, so that the lower surface of the thickness measurement slider 109 is in contact with the upper surface of the circular ring-shaped precision workpiece, thereby enabling the thickness of the circular ring-shaped precision workpiece to be measured.

[0040] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An auxiliary device suitable for measuring the size of a precision workpiece, comprising: The device body (100), the outer diameter measuring slider (107), the centering mechanism (200) and the connecting piece (300) are characterized in that: the four corners of the lower end of the internal components of the device body (100) are all provided with supporting legs (101) for stable support; A measuring table (102) for carrying and placing a workpiece to be measured is provided above the supporting legs (101); a centering cylinder (104) for pushing a centering mechanism (200) to move is provided at the center of the upper surface of the measuring table (102); and a centering mechanism (200) for circular positioning of an annular workpiece is provided above the centering cylinder (104); The right end of the upper surface of the measuring platform (102) is provided with an outer diameter measuring groove (105) for linearly guiding the outer diameter measuring slider (107); the inner side of the outer diameter measuring groove (105) is provided with an outer diameter measuring slider (107) for measuring the outer diameter of a circular workpiece; the upper end of the centering cylinder (104) is provided with a push rod; the upper end of the rear side surface of the push rod is provided with a connecting hole; the inner side of the connecting hole is provided with a connecting piece (300) for connecting and fixing the centering cylinder (104) to the centering mechanism (200).

2. An auxiliary device suitable for precision workpiece size measurement as claimed in claim 1, characterized in that: The upper surface of the measuring platform (102) and the periphery of the centering cylinder (104) are provided with three groups of centering grooves (103) equally distributed in a circle and used to guide the centering mechanism (200). The centering mechanism (200) has a central column (201) at the upper end thereof.

3. An auxiliary device suitable for measuring the size of a precision workpiece as claimed in claim 2, characterized in that: The lower end of the outer side surface of the central column (201) is provided with three groups of upper rotating grooves equally distributed in a circumference, a centering rod (205) is provided inside the upper rotating groove, and the upper end of the centering rod (205) is connected to the upper rotating groove via a damping shaft.

4. An auxiliary device suitable for precision workpiece size measurement as claimed in claim 3, characterized in that: A lower rotating block (206) is provided at the lower end of the centering rod (205), and a group of rotating seats (207) are provided on both the front and rear sides of the lower rotating block (206). The rotating seats (207) and the lower rotating block (206) are also connected via a damping rotating shaft.

5. An auxiliary device suitable for measuring the size of a precision workpiece as claimed in claim 4, characterized in that: A centering slider (208) is provided below the rotating seat (207), the centering slider (208) and the centering slide groove (103) are movably engaged with each other, and an arc-shaped clamping column is provided on the upper surface of the centering slider (208) at one end away from the center of the central column (201); The outer diameter measuring slide block (107) and the outer diameter measuring slide groove (105) are movably engaged with each other, and an outer diameter scale mark (106) is provided on the upper surface of the measuring platform (102) and the rear side of the outer diameter measuring slide groove (105).

6. An auxiliary device for measuring the size of a precision workpiece as claimed in claim 3, characterized in that: A connecting column (202) is provided at the center of the surface of the central column (201), a fitting hole (203) is provided on the lower surface of the connecting column (202), and a connecting threaded hole (204) is provided on the rear side surface of the connecting column (202); The upper end of the push rod is engaged with the engagement hole (203), and the front end of the connecting piece (300) is provided with a connecting stud (301), and the connecting stud (301) is threadedly connected to the connecting threaded hole (204).

7. An auxiliary device for measuring the size of a precision workpiece according to claim 1, characterized in that: A thickness measuring slot (108) is provided on the left side of the outer diameter measuring slider (107), a thickness measuring slider (109) is provided inside the thickness measuring slot (108), and a thickness scale mark (110) is provided at the rear end of the left side of the outer diameter measuring slider (107).

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