Linear size comparison measuring instrument

Abstract

The utility model relates to the field of size comparison measuring instruments, and discloses a linear size comparison measuring instrument which comprises a mounting plate, an inductance micrometer is fixedly mounted on the lower surface of the mounting plate, an adjusting seat is fixedly mounted at the right end of the upper surface of the mounting plate, a positioning assembly is arranged on the adjusting seat through an adjusting column, and the positioning assembly comprises a U-shaped frame. The U-shaped frame is fixedly installed on the rear surface of the adjusting seat through an adjusting column, a counter is detachably connected to the upper surface of the U-shaped frame, guide bearings are arranged at the positions, close to the left end and the right end of the counter, of the upper surface of the U-shaped frame, and upper supporting blocks are fixedly installed at the bottom ends of the outer walls of the guide bearings. According to the utility model, the U-shaped frame, the upper pressing plate, the lower supporting block and other parts in the positioning assembly are matched with each other through the connection relation, so that the accuracy and rapidity of the equipment on the measurement data of the tested workpiece are improved, and the measurement effect of the equipment on the machined workpiece is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of size comparison measuring instruments, and more particularly to linear size comparison measuring instruments. Background Technology

[0002] Linear dimension measuring instruments are essential tools for accurately measuring the linear dimensions of objects, playing a crucial role in industrial production, quality control, and scientific research. Currently, various linear dimension measuring instruments are available on the market, most employing optical, mechanical, or electronic methods for measurement.

[0003] A search revealed Chinese Patent Publication No. CN202885726U, which discloses a large-size internal thread pitch diameter comparison measuring instrument. The instrument includes a fixed measuring ball, a fixed measuring rod, a measuring frame, a digital micrometer, a spring, a movable sleeve, a movable measuring rod, and a movable measuring ball. A digital micrometer is fixed inside the central hole of the measuring frame. A fixed measuring rod is mounted on one end of the measuring frame, and a fixed measuring ball is mounted on the outer end of the fixed measuring rod. A movable sleeve is mounted on the other end of the measuring frame. One end of the movable sleeve contacts the probe of the digital micrometer, and the other end is fixed to the movable measuring rod. A movable measuring ball is mounted on the outer end of the movable measuring rod. A spring is installed inside the movable sleeve. This invention changes the traditional measurement concept, using a digital length measuring machine as a standard and employing a comparative measurement method to determine the actual value of the thread pitch diameter. It allows for arbitrary adjustment of the measurement range and offers high positioning accuracy and low repeatability error, enabling simple, convenient, fast, and high-precision comparative measurement of the pitch diameter of large-size threads.

[0004] The above-mentioned device has the following drawbacks: when high-precision measurement of linear dimensions such as shaft diameter, thickness, and height is required, general instruments need to frequently calibrate the equipment accuracy, which is time-consuming and laborious, reduces the efficiency of equipment measurement, and requires special environmental conditions, reducing the flexibility of equipment application in various scenarios. Therefore, a linear dimension comparison measuring instrument is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a linear dimension comparison measuring instrument, which aims to improve the problem of inconvenience in rapid measurement of equipment in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a linear dimension comparison measuring instrument, including a mounting plate, an inductive micrometer fixedly mounted on the lower surface of the mounting plate, an adjusting seat fixedly mounted on the right end of the upper surface of the mounting plate, a positioning component provided on the adjusting seat via an adjusting column, the positioning component including a U-shaped frame, the U-shaped frame fixedly mounted on the rear surface of the adjusting seat via the adjusting column, a counter detachably connected to the upper surface of the U-shaped frame, guide bearings provided on both the left and right ends of the upper surface of the U-shaped frame near the counter, an upper support block fixedly mounted on the bottom end of the outer wall of the guide bearing, and an upper pressure plate fixedly mounted on the lower surface of the upper support block.

[0007] As a further description of the above technical solution: the right end of the upper support block is elastically connected to the lower surface of the inner wall of the U-shaped frame by a tension spring, and the lower support block is fixedly installed on the lower surface of the inner wall of the U-shaped frame by a positioning bolt.

[0008] As a further description of the above technical solution: the top end of the tension spring is fixedly installed on the right end of the upper support block, and the bottom end of the tension spring is fixedly installed on the lower surface of the inner wall of the U-shaped frame.

[0009] As a further description of the above technical solution: the positioning bolt is detachably connected in the groove of the inner wall of the lower support block.

[0010] As a further description of the above technical solution: the adjusting column is detachably connected to the groove in the inner wall of the adjusting seat.

[0011] As a further description of the above technical solution: the electrical signal of the inductive micrometer is compatible with the electrical signal of the counter, and the counter circuit motor is located at the output terminal of the inductive micrometer.

[0012] As a further description of the above technical solution: a display screen is provided on the left end of the front surface of the inductive micrometer, and multiple sets of knobs and buttons are provided on the right end of the front surface of the inductive micrometer.

[0013] As a further description of the above technical solution: the cross-sectional area of ​​the lower surface of the upper pressure plate is adapted to the cross-sectional area of ​​the upper surface of the lower support block.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, by utilizing the mutual cooperation between the U-shaped frame, upper pressure plate, lower support block and other components in the positioning assembly through the connection relationship, the accuracy and speed of the equipment in measuring the test workpiece are improved, and the measurement effect of the equipment on the processed parts is enhanced.

[0016] 2. In this utility model, by utilizing the mutual cooperation between the connecting relationships of components such as adjusting columns, positioning bolts, and guide bearings, the convenience of equipment installation and disassembly by workers is improved, and the convenience of equipment maintenance is enhanced. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main body of the linear dimension comparison measuring instrument proposed in this utility model.

[0018] Figure 2 This is a schematic diagram of the rear view area of ​​the main body of the linear dimension comparison measuring instrument proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of the white text on a part of the U-shaped frame of the linear dimension comparison measuring instrument proposed in this utility model;

[0020] Figure 4 This is a schematic diagram showing the correspondence between the actual value and the displayed value of the linear dimension comparison measuring instrument proposed in this utility model.

[0021] Legend:

[0022] 1. Mounting plate; 2. Electro-inductive micrometer; 3. Adjustment base; 31. Adjustment column; 4. Positioning assembly; 41. U-shaped frame; 42. Guide bearing; 43. Upper support block; 44. Upper pressure plate; 45. Lower support block; 46. Positioning bolt; 47. Tension spring; 5. Counter. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Reference Figure 1 - Figure 2 An embodiment of this utility model provides a linear dimension comparison measuring instrument, including a mounting plate 1. An inductive micrometer 2 is fixedly mounted on the lower surface of the mounting plate 1. A display screen is provided on the left end of the front surface of the inductive micrometer 2. Multiple sets of knobs and buttons are provided on the right end of the front surface of the inductive micrometer 2. An adjustment seat 3 is fixedly mounted on the right end of the upper surface of the mounting plate 1. The adjustment seat 3 is provided with a positioning component 4 through an adjustment column 31.

[0025] Reference Figure 1 - Figure 3When it is necessary to measure the equipment data, the workpiece to be measured is clamped between the lower support block 45 and the upper pressure plate 44. The positioning component 4 includes a U-shaped frame 41, which is fixedly installed on the rear surface of the adjusting seat 3 via an adjusting column 31. The adjusting column 31 is detachably connected to a groove in the inner wall of the adjusting seat 3. A counter 5 is detachably connected to the upper surface of the U-shaped frame 41. The electrical signal of the inductive micrometer 2 is compatible with the electrical signal of the counter 5. The circuit motor of the counter 5 is located at the output end of the inductive micrometer 2. Guide bearings 42 are provided on both the left and right ends of the upper surface of the U-shaped frame 41 near the counter 5. During measurement, the upper support block 43 is lifted to drive the upper pressure plate 44. First, the standard piece is placed between the lower support block 45 and the upper pressure plate 44, the dial indicator is zeroed, and then the standard piece is removed. The bottom of the outer wall of the guide bearing 42 is fixedly installed with an upper... The upper support block 43 has an upper pressure plate 44 fixedly installed on its lower surface. The cross-sectional area of ​​the lower surface of the upper pressure plate 44 is compatible with the cross-sectional area of ​​the upper surface of the lower support block 45. The right end of the upper support block 43 is elastically connected to the lower surface of the inner wall of the U-shaped frame 41 through a tension spring 47. By lifting the upper support block 43 and placing the workpiece between the lower support block 45 and the upper pressure plate 44, the actual size of the workpiece can be obtained by reading the dial indicator. The top end of the tension spring 47 is fixedly installed on the right end of the upper support block 43, and the bottom end of the tension spring 47 is fixedly installed on the lower surface of the inner wall of the U-shaped frame 41. Due to the several mating structures of this structure, the machining accuracy and form and position tolerance between the lower support block 45 and the upper pressure plate 44 are guaranteed. After multiple tests, the repeatability of this device can reach more than 0.001mm. When used in conjunction with the inductive micrometer 2, the measurement accuracy can be guaranteed to be within 0.001mm. The lower support block 45 is fixedly installed on the lower surface of the inner wall of the U-shaped frame 41 by the positioning bolt 46. If used with the dial indicator counter 5, the measurement accuracy can also reach above 0.002mm. The structure is simple, easy to use, and can achieve rapid measurement. Each measurement can be completed in about two seconds. The positioning bolt 46 can be detachably connected to the groove in the inner wall of the lower support block 45. It is very suitable for high-precision measurement in mass production, which improves the accuracy and speed of the equipment's measurement data of the test workpiece and enhances the measurement effect of the equipment on the processed parts.

[0026] Reference Figure 1 - Figure 3 When the equipment needs maintenance, the adjusting column 31 can be pulled out of the adjusting seat 3 by removing the nut of the adjusting column 31, thereby releasing the positioning of the U-shaped frame 41. By releasing the positioning bolt 46, the lower support block 45 can be separated from the U-shaped frame 41, which improves the convenience of equipment installation and disassembly for the staff and enhances the convenience of equipment maintenance.

[0027] Working Principle: When measuring equipment data, the workpiece to be measured is clamped between the lower support block 45 and the upper pressure plate 44. During measurement, the upper support block 43 is lifted to move the upper pressure plate 44. First, a standard part is placed between the lower support block 45 and the upper pressure plate 44, and the dial indicator is zeroed. Then, the standard part is removed, the upper support block 43 is lifted, and the workpiece to be measured is placed between the lower support block 45 and the upper pressure plate 44. The dial indicator reading is then taken to obtain the actual size of the workpiece. Due to the machining accuracy and form and position tolerances of the several mating structures of this device, such as the lower support block 45 and the upper pressure plate 44, the repeatability of this device can reach above 0.001mm after multiple tests. When used with the inductive micrometer 2, the measurement accuracy can be guaranteed to be above 0.001mm. If used with the dial indicator counter 5, the measurement accuracy can also reach above 0.002mm. Moreover, it has a simple structure, is easy to use, and can achieve rapid measurement. Each measurement can be completed in about two seconds, making it very suitable for high-precision measurement in mass production. It improves the accuracy and speed of the equipment's measurement data of the test workpiece and enhances the measurement effect of the equipment on the processed parts. When the equipment needs maintenance, the adjustment column 31 can be removed from the adjustment seat 3 by disassembling the nut of the adjustment column 31, thereby releasing the positioning of the U-shaped frame 41. By releasing the positioning bolt 46, the lower support block 45 can be separated from the U-shaped frame 41, which improves the convenience of the staff for installing and disassembling the equipment and enhances the convenience of equipment maintenance.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. Linear dimensional comparison measuring instrument comprising a mounting plate (1), characterized in that: The lower surface of the mounting plate (1) is fixedly installed with an electric sensing micrometer (2), the upper surface right end of the mounting plate (1) is fixedly installed with an adjusting seat (3), the adjusting seat (3) is provided with a positioning assembly (4) through an adjusting column (31), the positioning assembly (4) comprises a U-shaped frame (41), the U-shaped frame (41) is fixedly installed on the rear surface of the adjusting seat (3) through the adjusting column (31), the upper surface of the U-shaped frame (41) is detachably connected with a counter (5), the upper surface of the U-shaped frame (41) is provided with a guide bearing (42) at the left and right ends close to the counter (5), the outer wall bottom end of the guide bearing (42) is fixedly installed with an upper supporting block (43), and the lower surface of the upper supporting block (43) is fixedly installed with an upper pressing plate (44).

2. The linear dimensional comparative measuring instrument of claim 1, wherein: The right end of the upper supporting block (43) is elastically connected to the lower surface of the inner wall of the U-shaped frame (41) through a tension spring (47), and the lower surface of the inner wall of the U-shaped frame (41) is fixedly installed with a lower supporting block (45) through a positioning bolt (46).

3. The linear dimensional comparative measuring instrument of claim 2, wherein: The top end of the tension spring (47) is fixedly installed on the right end of the upper supporting block (43), and the bottom end of the tension spring (47) is fixedly installed on the lower surface of the inner wall of the U-shaped frame (41).

4. The linear dimensional comparative measuring instrument of claim 2, wherein: The positioning bolt (46) is detachably connected in the groove in the inner wall of the lower supporting block (45).

5. The linear dimensional comparative measuring instrument of claim 1, wherein: The adjusting column (31) is detachably connected in the groove in the inner wall of the adjusting seat (3).

6. The linear dimensional comparative measuring instrument of claim 1, wherein: The electric signal of the electric sensing micrometer (2) is adapted to the electric signal of the counter (5), and the counter (5) circuit motor is at the output end of the electric sensing micrometer (2).

7. The linear dimensional comparative measuring instrument of claim 1, wherein: A display screen is formed in the left end of the front surface of the electric sensing micrometer (2), and a plurality of knobs and buttons are formed in the right end of the front surface of the electric sensing micrometer (2).

8. The linear dimensional comparative measuring instrument of claim 2, wherein: The cross-sectional area of the lower surface of the upper pressing plate (44) is adapted to the cross-sectional area of the upper surface of the lower supporting block (45).

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