Device for measuring inner diameter and outer diameter of thin-wall cylinder sleeve

Abstract

The utility model discloses a thin-wall cylinder sleeve inner and outer diameter measuring device, which comprises a main scale, a vernier scale and a measuring claw, the side surface of the vernier scale is provided with scale values, the right end of the main scale is open, the vernier scale is connected to the right end of the main scale in a sliding manner, and the measuring claw is arranged at the bottom of the right ends of the main scale and the vernier scale. The top of the main ruler is detachably connected with an inner measuring rod, a measuring piece is arranged at the left end of the main ruler, and a driving assembly used in cooperation with the measuring piece and the vernier scale is arranged in the left end of the main ruler. The vernier scale can be driven to slide at the right end of the main scale through the driving assembly, so that the measuring claw and the inner measuring rod are driven to move to be attached to the outer wall and the inner wall of the thin-wall cylinder sleeve, measured numerical values are checked through scale values on the surface of the vernier scale, the outer diameter and the inner diameter of the thin-wall cylinder sleeve are conveniently measured, the step of hand operation can be reduced, and the working efficiency is improved. The measurement efficiency can be improved, different types of parts can be simply measured by using the measurement piece, and the measurement diversity is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cylinder liner measurement, in particular to a device for measuring the inner and outer diameters of a thin-walled cylinder liner. Background Art

[0002] With the continuous development of the automotive industry and the continuous improvement of engine performance requirements, thin-walled cylinder liners, as a lightweight, high-performance engine component, will receive more and more attention and favor. Thin-walled cylinder liners are key components in internal combustion engines, with the characteristics of thin walls, light weight, and good wear resistance. When measuring thin-walled cylinder liners, a variety of measuring equipment will be used, including but not limited to micrometers, vernier calipers, laser measuring instruments, three-coordinate measuring equipment, etc.

[0003] The existing vernier caliper includes a main scale, a vernier scale, a depth gauge, a measuring grip and other auxiliary components. When measuring a thin-walled cylinder liner, the vernier scale is pushed to the surface of the device through a handheld device, and the value on the surface is read to measure the value. However, after long-term measurement, it will cause hand fatigue, and there is a problem of single functionality. Therefore, further optimization is made to address the above problems. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides a device for measuring the inner and outer diameters of thin-walled cylinder liners. The driving assembly can drive the vernier caliper to move left and right. The measuring grip and the inner measuring rod are fitted with the outer and inner walls of the thin-walled cylinder liners to measure the inner and outer diameters, reducing the number of manual operation steps, improving measurement efficiency, and having diversified functions.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a device for measuring the inner and outer diameters of a thin-walled cylinder liner, comprising a main scale, a vernier scale and a measuring grip, the side of the vernier scale being provided with scale values, the right end of the main scale being open, the vernier scale being slidably connected to the right end of the main scale, the measuring grip being provided at the bottom of the main scale and the right end of the vernier scale, the top of the main scale being detachably connected to an inner measuring rod, the left end of the main scale being provided with a measuring piece, and the interior of the left end of the main scale being provided with a drive assembly for use with the measuring piece and the vernier scale.

[0006] The utility model has the following beneficial effects:

[0007] 1. This device for measuring the inner and outer diameters of thin-walled cylinder liners can drive a vernier scale to slide on the right end of the main scale through a driving assembly, thereby driving the measuring grip and the inner measuring rod to move so that they fit the outer and inner walls of the thin-walled cylinder liners. The scale values ​​on the surface of the vernier scale are used to view the measured values, making it convenient to measure the outer and inner diameters. This can reduce the number of manual operations and improve measurement efficiency. The measuring piece can be used to simply measure different types of components, thereby increasing the diversity of its measurement.

[0008] 2. This device for measuring the inner and outer diameters of thin-walled cylinder sleeves can drive the rotating shaft to rotate through a driving assembly, so that the measuring tape can be rolled up on its surface after use. When the vernier caliper moves to the right, the cleaning brush can be used to clean the dirt on its surface, making it convenient to view the measured value. The top of the measuring grip can be tilted forward and backward and fixed with a positioning rod to facilitate adjustment of the angle during measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0010] Figure 2 This is a schematic diagram of the exploded structure of the measuring grip, main scale and vernier scale of the utility model;

[0011] Figure 3 This is a schematic diagram of the top view of the protective shell of the utility model;

[0012] Figure 4 This is a schematic diagram of the cross-sectional structure of the main scale of the utility model.

[0013] Among them, 1. Main scale; 2. Vernier scale; 3. Measuring grip; 4. Inner measuring rod; 5. Rotating shaft; 6. Measuring tape; 7. Slider; 8. Driving block; 9. Driving rod; 10. Gear 1; 11. Gear 2; 12. Connecting rod; 13. Cleaning brush; 14. Positioning rod; 15. Auxiliary rod; 16. Spring; 17. Protective shell. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0015] See also Figures 1 to 4 The utility model provides a device for measuring the inner and outer diameters of a thin-walled cylinder liner; it comprises a main scale 1, a vernier scale 2 and a measuring grip 3, the side of the vernier scale 2 is provided with a scale value, the right end of the main scale 1 is open, the vernier scale 2 is slidably connected to the right end of the main scale 1, the measuring grip 3 is arranged at the bottom of the main scale 1 and the right end of the vernier scale 2, the top of the main scale 1 is detachably connected to an inner measuring rod 4, the left end of the main scale 1 is provided with a measuring piece, and the interior of the left end of the main scale 1 is provided with a driving component used in conjunction with the measuring piece and the vernier scale 2.

[0016] like Figure 1As shown, the right end of the main scale 1 is U-shaped, and a slide is provided on its inner top and bottom walls. The top and bottom of the vernier scale 2 are fixedly connected with convex strips (shown in the figure, not numbered), and are slidably connected to the inside of the slide. The purpose of this arrangement is to reduce the problem of up and down shaking during measurement and improve the accuracy of the vernier scale 2 during measurement.

[0017] like Figure 2 As shown, the bottom end of the inner measuring rod 4 is fixedly connected with a protrusion (shown in the figure, not numbered), and the upper surface of the right end of the main scale 1 and the vernier scale 2 is provided with a groove (shown in the figure, not numbered) adapted to the protrusion, and a fastening rod is threadedly connected on the side close to the groove, one end of the fastening rod extends to the inside of the groove and presses against the inner measuring rod 4, so as to facilitate the disassembly and replacement of the inner measuring rod 4 at a later time.

[0018] The measuring part includes a protective shell 17 fixedly connected to the left end of the main scale 1, a rotating shaft 5 provided inside the protective shell 17, and a measuring belt 6 wrapped around the surface of the rotating shaft 5. The driving assembly includes a slider 7 slidably connected to the upper surface of the left end of the main scale 1, a driving block 8 provided inside the slider 7, and a driving rod 9 fixedly connected to the bottom end of the driving block 8. The end of the rotating shaft 5 away from the measuring belt 6 is fixedly connected to a gear 10.

[0019] like Figure 4 As shown, the slider 7 is convenient for protecting the driving block 8 (with a micro motor as the driving source) inside it. The main scale 1 is provided with a slideway (not shown in the figure but marked) near the protective shell 17 to facilitate the movement of the driving rod 9 inside it and to facilitate the switching of the use position of the driving assembly. The protective shell 17 is circular (as shown in the attached figure). Figure 1 ), a fixing groove is provided on its surface to facilitate the pulling out and winding of the measuring tape 6.

[0020] The bottom end of the driving rod 9 is fixedly connected to the gear 2 11, and a connecting rod 12 is provided inside the main scale 1 near the gear 2 11. The end of the connecting rod 12 away from the gear 2 11 is threadedly connected to the vernier scale 2, and a cleaning brush 13 is provided on the side of the main scale 1 close to the measuring grip 3.

[0021] One end of the cleaning brush 13 is connected to the front of the main scale 1 through a pin shaft, and a brush is provided on its surface. When in use, it is rotated to the surface of the vernier scale 2 with scale values. When the vernier scale 2 moves, the bristles can automatically clean the dirt on its surface.

[0022] The bottom of the right end of the main scale 1 and the vernier scale 2 is U-shaped, and a positioning rod 14 is threadedly connected to one side. The other end of the positioning rod 14 extends to the inside of the measuring grip 3. The surface of the driving rod 9 is covered with an auxiliary ring, and an auxiliary rod 15 is fixedly connected to its surface. One end of the auxiliary rod 15 is fixedly connected to a spring 16, and the other end of the spring 16 is fixedly connected to the inner wall of the main scale 1.

[0023] like Figure 4 As shown, the slider 7 is in a normal state; through the auxiliary rod 15 and the spring 16, the gear 2 11 can be kept out of contact with the gear 10 and the connecting rod 12, so that it is located between the two; when it is necessary to reel in the measuring tape 6, the slider 7 is pushed to the left, so that the gear 2 11 is meshed and connected with the gear 10, and the driving block 8 is started, and the rotating shaft 5 is driven to rotate through the gear 2 11, so as to facilitate the rapid reeling of the measuring tape 6; when it is necessary to measure the thin-walled cylinder liner, the slider 7 is pushed to the right, so that the gear 2 11 is meshed and connected with one end of the connecting rod 12, thereby driving the connecting rod 12 to rotate. At this time, the vernier 2 moves to the right, and the measuring grip 3 and the inner measuring rod 4 are attached to the inner and outer walls of the thin-walled cylinder liner. The measured value is viewed through the scale value on the surface of the vernier 2, which is convenient for rapid measurement.

[0024] The auxiliary ring on the surface of the driving rod 9 is convenient for connection with the auxiliary rod 15, and at the same time avoids the influence of the rotation of the driving rod 9. When the measuring position of the thin-walled cylinder sleeve is limited and the angle needs to be adjusted, the positioning rod 14 is rotated counterclockwise to adjust the measuring angle required by the measuring grip 3, and then fixed by the positioning rod 14.

[0025] When the slider 7 slides to the left, the auxiliary rod at the left end drives the spring to be in a compressed state, and the auxiliary rod at the right end drives the spring to be in a stretched state. When the slider 7 slides to the right, it moves in the opposite direction to the left.

[0026] The electrical components mentioned in this article are all connected to an external main controller and 220V AC power, and the main controller can be a conventional known device that performs control such as a computer.

[0027] In the present invention, the working steps of the device are as follows:

[0028] When in use, hold the main ruler 1. When it is necessary to measure the outer diameter and inner diameter of the thin-walled cylinder liner, start the driving block 8 to reverse, so that the two measuring grips 3 and the inner measuring rod 4 are separated, and then rotate forward to make them fit on the outer wall and inner wall of the thin-walled cylinder liner. By checking the scale value on the surface of the vernier ruler 2, the accurate value can be measured. When using the measuring tape 6, it can be directly pulled out from the inside of the protective shell 17 to measure the parts to be used. After use, the driving block 8 drives the rotating shaft 5 to rotate and reel it up.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for measuring the inner and outer diameters of thin-walled cylinder sleeves, comprising a main scale (1), a vernier scale (2) and a measuring grip (3), wherein the side of the vernier scale (2) is provided with scale values, and wherein: The right end of the main scale (1) is open, the vernier scale (2) is slidably connected to the right end of the main scale (1), the measuring grip (3) is provided at the bottom of the right ends of the main scale (1) and the vernier scale (2), the top of the main scale (1) is detachably connected to an inner measuring rod (4), the left end of the main scale (1) is provided with a measuring piece, and the interior of the left end of the main scale (1) is provided with a driving assembly used in conjunction with the measuring piece and the vernier scale (2).

2. The device for measuring the inner and outer diameters of thin-walled cylinder sleeves according to claim 1, characterized in that: The measuring piece comprises a protective shell (17) fixedly connected to the left end of the main scale (1), a rotating shaft (5) arranged inside the protective shell (17), and a measuring belt (6) wound around the surface of the rotating shaft (5).

3. The device for measuring the inner and outer diameters of thin-walled cylinder sleeves according to claim 2, characterized in that: The driving assembly comprises a slider (7) slidably connected to the upper surface of the left end of the main scale (1), a driving block (8) arranged inside the slider (7), and a driving rod (9) fixedly connected to the bottom end of the driving block (8); and a gear (10) is fixedly connected to the end of the rotating shaft (5) away from the measuring belt (6).

4. The device for measuring the inner and outer diameters of thin-walled cylinder sleeves according to claim 3, characterized in that: The bottom end of the driving rod (9) is fixedly connected to the second gear (11), and a connecting rod (12) is provided in the interior of the main scale (1) near the second gear (11). The end of the connecting rod (12) away from the second gear (11) is threadedly connected to the vernier scale (2).

5. The device for measuring the inner and outer diameters of thin-walled cylinder sleeves according to claim 4, characterized in that: A cleaning brush (13) is provided on one side of the main scale (1) close to the measuring grip (3); the bottoms of the right ends of the main scale (1) and the vernier scale (2) are U-shaped, and one side is threadedly connected to a positioning rod (14); the other end of the positioning rod (14) extends into the interior of the measuring grip (3).

6. The device for measuring the inner and outer diameters of thin-walled cylinder sleeves according to claim 3, characterized in that: The surface of the driving rod (9) is covered with an auxiliary ring, and an auxiliary rod (15) is fixedly connected to the surface thereof; one end of the auxiliary rod (15) is fixedly connected to a spring (16), and the other end of the spring (16) is fixedly connected to the inner wall of the main scale (1).

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