Measuring device

Abstract

The utility model provides a measuring device, which is suitable for measuring the diameter of ring grooves of a cylinder hole, a plurality of ring grooves are arranged at the bottom of the cylinder hole at intervals along the axial direction of the cylinder hole, and the measuring device comprises a detection assembly which is movably arranged along the axial direction of the cylinder hole and is used for transmitting detection signals to the side walls of the ring grooves, the diameter of the ring groove is detected by detecting the distance between the side wall of the ring groove and the detection assembly in the radial direction of the cylinder hole. And the positioning assembly comprises a positioning piece arranged in the cylinder hole, the positioning piece is provided with a plurality of positioning positions, the plurality of positioning positions and the plurality of ring grooves are arranged in a one-to-one correspondence manner, and the detection assembly is enabled to measure the diameter of the corresponding ring groove by positioning the detection assembly at any positioning position. The measuring device provided by the utility model solves the problem that the cost of measuring the diameter of the annular groove of the cylinder hole of the cylinder body is high in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring instruments, in particular to a measuring device. Background Art

[0002] The annular groove of the cylinder block bore is located at the bottom of the cylinder bore and is used to install the sealing rubber ring. It has the characteristics of large diameter and small axial dimension. Calliper gauges and bore gauges are generally used to measure the diameter of the cylinder block bore annular groove. Calliper gauge measurement refers to inserting the calliper gauge into the cylinder bore, with the two claws contacting the walls of the annular groove respectively, and reading the indicator gauge to obtain the diameter value; bore gauge measurement refers to inserting the bore gauge into the cylinder bore, with the two measuring balls contacting the walls of the annular groove respectively, and reading the indicator gauge to obtain the diameter value.

[0003] However, since the annular groove of the cylinder block bore is located at the bottom of the cylinder bore and is deep from the hole mouth, and the annular groove of the cylinder block bore has the characteristics of large diameter and small axial dimension, the general caliper gauge and bore gauge are not suitable for measuring the diameter of the annular groove of the cylinder block bore. Special caliper gauges and bore gauges need to be designed to measure them, resulting in high measurement costs. Utility Model Content

[0004] The main purpose of the utility model is to provide a measuring device to solve the problem of high cost in measuring the diameter of the annular groove of the cylinder bore of a cylinder block in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a measuring device, which is suitable for measuring the diameter of the annular groove of a cylinder hole, wherein a plurality of annular grooves are arranged at intervals at the bottom of the cylinder hole along the axial direction of the cylinder hole, and the measuring device comprises: a detection component, which is movably arranged along the axial direction of the cylinder hole, and the detection component is used to emit a detection signal toward the side wall of the annular groove, so as to detect the diameter of the annular groove by detecting the distance between the side wall of the annular groove and the detection component along the radial direction of the cylinder hole; a positioning component, which comprises a positioning member arranged in the cylinder hole, and the positioning member has a plurality of positioning positions, and the plurality of positioning positions are arranged one by one corresponding to the plurality of annular grooves, and the detection component is positioned at any one of the positioning positions so that the detection component measures the diameter of the corresponding annular groove.

[0006] Furthermore, the detection assembly includes a movable frame and a detection probe, wherein the movable frame is movably arranged on a positioning member along the axial direction of the cylinder hole so that the detection assembly can be positioned at any positioning position; the detection probe is arranged on the movable frame, and the detection probe is used to emit a detection signal toward the side wall of the annular groove.

[0007] Furthermore, a plurality of limiting grooves are arranged on the positioning member, and the plurality of limiting grooves are arranged one-to-one corresponding to the plurality of positioning positions. The positioning assembly also includes a limiting member arranged on the movable frame, and the limiting member is movably arranged along the radial direction of the cylinder hole so that the limiting member can be clamped in any one of the limiting grooves to position the detection assembly at the corresponding positioning position.

[0008] Furthermore, the contact surface between the limiting member and the limiting groove is a smooth curved surface.

[0009] Furthermore, a positioning hole extending along the radial direction of the cylinder hole is provided on the movable frame, and the measuring device also includes an elastic member, one end of the elastic member is connected to the limiting member, and the other end of the elastic member is connected to the positioning hole, so that when the movable frame moves, the elastic member squeezes the limiting member so that the limiting member can be movably arranged along the radial direction of the cylinder hole.

[0010] Furthermore, the measuring device also includes a plug, which is inserted into the positioning hole and blocks the positioning hole, and the other end of the elastic member abuts against the plug.

[0011] Furthermore, the movable frame includes a movable rod, and the positioning member has a through hole extending along the axial direction of the cylinder hole, and the movable rod can be movably inserted into the through hole.

[0012] Furthermore, there are multiple moving rods and multiple penetration holes, and the multiple penetration holes are arranged in one-to-one correspondence with the multiple moving rods; and a limiting member is arranged on at least one moving rod.

[0013] Furthermore, the mobile frame also includes a support plate, which is arranged at the bottom of the mobile frame, and there are two detection probes, which are respectively arranged at two ends of the support plate.

[0014] Furthermore, the detection probe includes a signal transmitting part and a signal receiving part, which are arranged on the support plate at intervals along the axial direction of the cylinder hole, and the center line of the signal transmitting part coincides with the radial center line of the annular groove.

[0015] By applying the technical solution of the utility model, the measuring device includes a detection component and a positioning component, the positioning component includes a positioning member arranged in the cylinder hole, the positioning member has a plurality of positioning positions, and the plurality of positioning positions are arranged in one-to-one correspondence with the plurality of ring grooves. By positioning the detection component at different positioning positions, the detection component can measure the distance between the side walls of different ring grooves and the detection component, thereby realizing non-contact measurement of the diameter of the ring grooves at different heights, so that it is no longer necessary to design a special caliper and an inner diameter gauge to measure the diameter of the ring groove, thereby solving the problem of high cost of measuring the diameter of the ring groove of the cylinder bore of the cylinder block in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 A schematic structural diagram of an embodiment of a measuring device according to the utility model is shown;

[0018] Figure 2 A first partial structural schematic diagram of an embodiment of a measuring device according to the utility model is shown;

[0019] Figure 3 A second partial structural schematic diagram of an embodiment of a measuring device according to the utility model is shown;

[0020] Figure 4 A third partial structural front view of an embodiment of a measuring device according to the utility model is shown;

[0021] Figure 5 A side view showing a third partial structure of an embodiment of a measuring device according to the present utility model.

[0022] The above drawings include the following reference numerals:

[0023] 19. Height scale line; 1. Cylinder hole; 2. Ring groove; 10. Moving frame; 20. Detection probe; 30. Positioning assembly; 31. Positioning piece; 12. Moving rod; 15. Support plate; 32. Limiting piece; 311. Through hole; 312. Limiting groove; 50. Positioning hole; 60. Elastic piece; 70. Plug; 21. Signal transmitting unit; 22. Signal receiving unit. DETAILED DESCRIPTION

[0024] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0025] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0026] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0027] Please refer to Figures 1 to 5 The utility model provides a measuring device, which is suitable for measuring the diameter of the annular groove 2 of the cylinder hole 1. A plurality of annular grooves 2 are arranged at intervals at the bottom of the cylinder hole 1 along the axial direction of the cylinder hole 1. The measuring device comprises: a detection component, which is movably arranged along the axial direction of the cylinder hole 1, and the detection component is used to emit a detection signal toward the side wall of the annular groove 2, so as to detect the diameter of the annular groove 2 by detecting the distance between the side wall of the annular groove 2 and the detection component along the radial direction of the cylinder hole 1; a positioning component 30, comprising a positioning member 31 arranged in the cylinder hole 1, and the positioning member 31 has a plurality of positioning positions, and the plurality of positioning positions are arranged one by one corresponding to the plurality of annular grooves 2, and the detection component is positioned at any one of the positioning positions so that the detection component measures the diameter of the corresponding annular groove 2.

[0028] The measuring device of the utility model includes a detection component and a positioning component 30. The positioning component 30 includes a positioning member 31 arranged in the cylinder hole 1. The positioning member 31 has a plurality of positioning positions, and the plurality of positioning positions are arranged in one-to-one correspondence with the plurality of annular grooves 2. By positioning the detection component at different positioning positions, the detection component can measure the distance between the side walls of different annular grooves 2 and the detection component, thereby realizing non-contact measurement of the diameters of annular grooves of different heights, thereby no longer needing to design a special caliper and an inner diameter gauge to measure the diameter of the annular groove, thereby solving the problem of high cost of measuring the diameter of the annular groove of the cylinder bore of the cylinder block in the prior art.

[0029] In specific implementation, two height scale lines 19 are provided on the mobile frame 10, and there are two positioning positions. The two height scale lines 19 are provided in one-to-one correspondence with the two positioning positions. When the user moves the mobile frame 10 so that the height scale line 19 coincides with the upper end surface of the positioning member 31, the mobile frame 10 reaches the corresponding positioning position.

[0030] In this embodiment, if Figure 1 As shown, the detection assembly includes a movable frame 10 and a detection probe 20. The movable frame 10 is movably arranged on a positioning member 31 along the axial direction of the cylinder hole 1 so that the detection assembly can be positioned at any positioning position; the detection probe 20 is arranged on the movable frame 10, and the detection probe 20 is used to emit a detection signal toward the side wall of the annular groove 2.

[0031] Specifically, the positioning member 31 is used to connect the movable frame 10 and the cylinder hole 1. By moving the movable frame 10, the detection assembly is positioned at any positioning position, so that the detection probe 20 can emit detection signals toward the side walls of different annular grooves 2 to detect the diameters of different annular grooves 2.

[0032] Specifically, Figure 3 As shown, the shape of the positioning member 31 is adapted to the shape of the cylinder hole 1, so that the side wall of the positioning member 31 abuts against the inner wall of the cylinder hole 1. Such a setting ensures the connection reliability between the positioning member 31 and the cylinder hole 1, ensures that the moving frame 10 always remains radially fixed with the cylinder hole 1 during the movement process, and further ensures the measurement reliability of the detection probe 20.

[0033] In this embodiment, if Figure 1 and Figure 2 As shown, a plurality of limiting grooves 312 are arranged on the positioning member 31, and the plurality of limiting grooves 312 are arranged one-to-one corresponding to the plurality of positioning positions. The positioning assembly 30 also includes a limiting member 32 arranged on the movable frame 10, and the limiting member 32 is movably arranged along the radial direction of the cylinder hole 1, so that the limiting member 32 is clamped in any one of the limiting grooves 312, so that the detection assembly is positioned at the corresponding positioning position.

[0034] Specifically, such a configuration ensures that the detection assembly can be positioned at the corresponding positioning position, and prevents the moving frame 10 from continuing to move after reaching the positioning position, thereby ensuring the reliability of the measurement of the diameter of the annular groove 2 .

[0035] In this embodiment, if Figure 2 As shown, the contact surface between the stopper 32 and the stopper groove 312 is a smooth curved surface. Such a setting ensures that the stopper 32 can smoothly enter or exit the stopper groove 312, and avoids the stopper 32 being stuck in a stopper groove 312, resulting in the detection component being unable to switch freely between multiple positioning positions.

[0036] Specifically, the limiting member 32 is a limiting ball.

[0037] In this embodiment, if Figure 1 As shown, a positioning hole 50 extending along the radial direction of the cylinder hole 1 is provided on the movable frame 10, and the measuring device also includes an elastic member 60, one end of the elastic member 60 is connected to the limiting member 32, and the other end of the elastic member 60 is connected to the positioning hole 50, so that when the movable frame 10 moves, the elastic member 60 squeezes the limiting member 32 so that the limiting member 32 can be movably arranged along the radial direction of the cylinder hole 1.

[0038] Specifically, when the movable frame 10 moves along the axial direction of the cylinder hole 1 from one positioning position toward a direction close to the next positioning position, the limiting member 32 moves along the radial direction of the cylinder hole 1 toward a direction away from the limiting groove 312, and the elastic member 60 is squeezed; when the movable frame 10 reaches the next positioning position, the elastic member 60 resets and squeezes the limiting member 32, so that the limiting member 32 moves along the radial direction of the cylinder hole 1 toward a direction close to the limiting groove 312 until the limiting member 32 is engaged with the limiting groove 312, so that the movable frame 10 is positioned at the next positioning position.

[0039] Specifically, the elastic member 60 is a spring.

[0040] In this embodiment, if Figure 2 As shown, the measuring device further includes a plug 70, which is inserted into the positioning hole 50 and blocks the positioning hole 50, and the other end of the elastic member 60 abuts against the plug 70. The positioning hole 50 and the elastic member 60 are connected by the plug 70, so that the other end of the elastic member 60 is relatively fixed to the positioning hole 50, thereby ensuring that the elastic member 60 can be elastically deformed when squeezed by the limiting member 32.

[0041] In this embodiment, if Figure 1 and Figure 2As shown, the moving frame 10 includes a moving rod 12, and a positioning member 31 has a through hole 311 extending along the axial direction of the cylinder hole 1, and the moving rod 12 is movably inserted into the through hole 311. Such a setting ensures that the positioning member 31 can connect the cylinder hole 1 and the moving frame 10, and the through hole 311 is used to limit the moving frame 10 to prevent the moving frame 10 from moving along the radial direction of the cylinder hole 1.

[0042] In this embodiment, if Figure 1 and Figure 2 As shown, there are multiple moving rods 12 and multiple penetration holes 311 , and the multiple penetration holes 311 are arranged one-to-one correspondingly to the multiple moving rods 12 ; and a limiting member 32 is arranged on at least one moving rod 12 .

[0043] Specifically, two penetration holes 311 are provided on the positioning member 31, and each penetration hole 311 extends along the axial direction of the cylinder hole 1. By respectively penetrating the two moving rods 12 into the two penetration holes 311, the moving frame 10 is movably connected to the positioning member 31, thereby further preventing the moving frame 10 from moving along the radial direction of the cylinder hole 1.

[0044] Specifically, when the movable frame 10 moves along the axial direction of the cylinder hole 1 toward the direction close to the positioning position, the limiting member 32 moves along the radial direction of the cylinder hole 1 toward the direction away from the limiting groove 312 until the limiting member 32 is separated from the limiting groove 312; when the movable frame 10 reaches the positioning position, the limiting member 32 moves along the radial direction of the cylinder hole 1 toward the direction close to the limiting groove 312 until the limiting member 32 is connected with the limiting groove 312.

[0045] Specifically, when the movable frame 10 moves along the axial direction of the cylinder hole 1 from one positioning position toward a direction close to the next positioning position, the hole wall of the through hole 311 squeezes the limit member 32, so that the limit member 32 moves along the radial direction of the cylinder hole 1 toward a direction away from the limit groove 312 until the limit member 32 is separated from the limit groove 312, thereby preventing the limit member 32 from preventing the movable frame 10 from continuing to move to the next positioning position.

[0046] In this embodiment, if Figure 4 As shown, the mobile frame 10 further includes a support plate 15 , which is disposed at the bottom of the mobile frame 10 , and two detection probes 20 , which are respectively disposed at two ends of the support plate 15 .

[0047] Specifically, the support plate 15 is used to connect the detection probe 20 and the moving frame 10 ; two detection probes 20 are respectively arranged at both ends of the support plate 15 , and are respectively used to measure the distance between the side walls of both sides of the annular groove 2 and the detection probe 20 .

[0048] In this embodiment, if Figure 5As shown, the detection probe 20 includes a signal transmitting part 21 and a signal receiving part 22. The signal transmitting part 21 and the signal receiving part 22 are arranged on the support plate 15 at intervals along the axial direction of the cylinder hole 1, and the center line of the signal transmitting part 21 coincides with the radial center line of the annular groove 2. Such an arrangement can ensure that the detection probe 20 measures the maximum diameter of the annular groove 2, further ensuring the measurement accuracy of the annular groove diameter.

[0049] Specifically, the detection probe 20 is a laser probe.

[0050] When implementing it, Figure 4 As shown, the distance between the two detection probes 20 is L, the distances between the side walls on both sides of the annular groove 2 and the two signal emitting parts 21 are L2 and L1 respectively, and the diameter L3 of the annular groove 2 is L2+L1+L.

[0051] From the above description, it can be seen that the above embodiments of the utility model achieve the following technical effects:

[0052] The measuring device of the utility model is based on the principle of laser distance measurement. By placing two detection probes 20 directly opposite the annular groove 2, non-contact measurement of the diameter of the annular groove 2 is achieved. The height of the detection probe 20 can be adjusted to achieve measurement of two annular grooves of different heights under the condition of one positioning by the positioning member 31.

[0053] The measuring device of the utility model includes a detection component and a positioning component 30. The positioning component 30 includes a positioning member 31 arranged in the cylinder hole 1. The positioning member 31 has a plurality of positioning positions, and the plurality of positioning positions are arranged in one-to-one correspondence with the plurality of annular grooves 2. By positioning the detection component at different positioning positions, the detection component can measure the distance between the side walls of different annular grooves 2 and the detection component, thereby realizing non-contact measurement of the diameters of annular grooves of different heights, thereby no longer needing to design a special caliper and an inner diameter gauge to measure the diameter of the annular groove, thereby solving the problem of high cost of measuring the diameter of the annular groove of the cylinder bore of the cylinder block in the prior art.

[0054] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0055] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0056] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A measuring device, suitable for measuring the diameter of an annular groove (2) of a cylinder bore (1), wherein a plurality of the annular grooves (2) are arranged at intervals at the bottom of the cylinder bore (1) along the axial direction of the cylinder bore (1), characterized in that: The measuring device comprises: A detection component, the detection component is movably arranged along the axial direction of the cylinder hole (1), and the detection component is used to emit a detection signal toward the side wall of the annular groove (2) so as to detect the diameter of the annular groove (2) by detecting the distance between the side wall of the annular groove (2) and the detection component along the radial direction of the cylinder hole (1); A positioning assembly (30) comprises a positioning member (31) arranged in the cylinder hole (1), wherein the positioning member (31) has a plurality of positioning positions, wherein the plurality of positioning positions are arranged in one-to-one correspondence with the plurality of annular grooves (2), and the detection assembly is positioned at any one of the positioning positions so that the detection assembly measures the diameter of the corresponding annular groove (2).

2. The measuring device according to claim 1, characterized in that The detection component comprises a movable frame (10) and a detection probe (20); the movable frame (10) is movably arranged on the positioning member (31) along the axial direction of the cylinder hole (1) so that the detection component is positioned at any one of the positioning positions; the detection probe (20) is arranged on the movable frame (10), and the detection probe (20) is used to emit a detection signal toward the side wall of the annular groove (2).

3. The measuring device according to claim 2, characterized in that A plurality of limiting grooves (312) are arranged on the positioning member (31), and the plurality of limiting grooves (312) are arranged in one-to-one correspondence with the plurality of positioning positions. The positioning assembly (30) further comprises a limiting member (32) arranged on the movable frame (10), and the limiting member (32) is movably arranged along the radial direction of the cylinder hole (1), so that the limiting member (32) is clamped in any one of the limiting grooves (312), so that the detection assembly is positioned at the corresponding positioning position.

4. The measuring device according to claim 3, characterized in that The contact surface between the limiting member (32) and the limiting groove (312) is a smooth curved surface.

5. The measuring device according to claim 3, characterized in that The movable frame (10) is provided with a positioning hole (50) extending in the radial direction of the cylinder hole (1). The measuring device further comprises an elastic member (60), one end of the elastic member (60) is connected to the limiting member (32), and the other end of the elastic member (60) is connected to the positioning hole (50), so that when the movable frame (10) moves, the elastic member (60) presses the limiting member (32) so that the limiting member (32) is movably arranged in the radial direction of the cylinder hole (1).

6. The measuring device according to claim 5, characterized in that The measuring device further comprises a plug (70), the plug (70) being inserted into the positioning hole (50) and blocking the positioning hole (50), and the other end of the elastic member (60) being in contact with the plug (70).

7. The measuring device according to claim 2, characterized in that The movable frame (10) comprises a movable rod (12), the positioning member (31) has a through hole extending along the axial direction of the cylinder hole (1), and the movable rod (12) is movably inserted into the through hole.

8. The measuring device according to claim 7, characterized in that There are a plurality of moving rods (12), a plurality of penetration holes, and the plurality of penetration holes are arranged in one-to-one correspondence with the plurality of moving rods (12); and a limiting member (32) is arranged on at least one of the moving rods (12).

9. The measuring device according to claim 2, characterized in that The mobile frame (10) further comprises a support plate (15), wherein the support plate (15) is arranged at the bottom of the mobile frame (10), and there are two detection probes (20), wherein the two detection probes (20) are respectively arranged at two ends of the support plate (15).

10. The measuring device according to claim 9, characterized in that The detection probe (20) comprises a signal transmitting part (21) and a signal receiving part (22), wherein the signal transmitting part (21) and the signal receiving part (22) are arranged on the support plate (15) at intervals along the axial direction of the cylinder hole (1), and the center line of the signal transmitting part (21) coincides with the radial center line of the annular groove (2).

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