A mechanical engineering component dimension measuring device

Abstract

A mechanical engineering parts size measuring equipment belongs to mechanical detection technical field. Bottom plate is vertically fixed with vertical plate, and upper surface has two fixed plates. The movable plate is vertically slidably connected with the fixed plate, and the movable plate is provided with a first range finder. The electric push rod is fixed with the bottom plate, and the movable end is connected with the connecting rod. The connecting rod is provided with a top plate, and the top plate is provided with a second range finder above the bottom plate. The vertical plate is fixed with a fixed rod, and the fixed rod is provided with a tension spring and two sliding blocks. The tension spring is fixedly connected with the sliding blocks at both ends, and each sliding block is fixedly connected with the corresponding clamping plate. The two clamping plates are located above the bottom plate. The utility model avoids the positioning reference change error caused by the switching of multiple gauges, improves the detection efficiency, reduces the labor intensity, reduces the repositioning demand, guarantees the measurement stability, and significantly improves the operation convenience and quality controllability of the mechanical engineering parts size detection link.

Description

Technical Field

[0001] This utility model relates to a device for measuring the external dimensions of mechanical engineering parts, belonging to the field of mechanical testing technology. Background Technology

[0002] In the field of mechanical manufacturing and assembly, the geometrical accuracy of parts is a core foundation for ensuring product quality and achieving interchangeable assembly. Rapid and accurate inspection of the external dimensions of parts is an indispensable quality control step in the production process.

[0003] In current technology, conventional manual measuring tools such as vernier calipers, micrometers, and height gauges are still widely used for routine dimensional inspection of small and medium-sized parts. While these tools have the advantage of low cost, in practical applications, each dimension must be measured and recorded manually and individually, making the operation cumbersome and difficult to meet the efficiency requirements of modern large-scale production. Especially for parts that need to be measured in multiple dimensions, operators need to frequently switch between different measuring tools and reposition the part multiple times. This process not only increases labor intensity but also significantly increases the risk of measurement errors due to changes in the positioning reference.

[0004] Therefore, existing manual measuring tool inspection methods have significant limitations in terms of inspection efficiency, ease of operation, and measurement accuracy, making it difficult to meet the needs of modern industrial production for rapid and accurate inspection of the external dimensions of parts. Summary of the Invention

[0005] To address the problems existing in the background technology, this utility model provides a device for measuring the external dimensions of mechanical engineering parts.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a mechanical engineering component external dimension measuring device, comprising a base plate, a vertical plate, a clamping mechanism, and a detection mechanism. The detection mechanism includes a transverse detection system and a longitudinal detection system. The transverse detection system includes a first rangefinder and a sliding limit system. The longitudinal detection system includes a second rangefinder and a displacement system. One end of the base plate is vertically and fixedly connected to the lower end of the vertical plate. The first rangefinder is slidably and limit-connected to the upper surface of the base plate through the sliding limit system. The vertical plate is provided with a clamping mechanism and a displacement system, and the second rangefinder is installed on the displacement system.

[0007] Furthermore, the sliding limiting system includes a fixed plate, a movable plate, and threaded posts; two fixed plates are fixedly arranged side by side on the upper surface of the base plate, the movable plate is perpendicular to the fixed plates, and both ends of the movable plate are slidably connected to the corresponding fixed plates through sliding units, while each end of the movable plate is threadedly screwed to the corresponding threaded post, and the lower end of each threaded post is respectively matched with the corresponding fixed plate; a first rangefinder is installed on the movable plate.

[0008] Furthermore, the sliding unit includes a semi-circular groove one, a semi-circular groove two, and ball bearings; each of the two side walls of the fixed plate is provided with a semi-circular groove one along its length direction, and both ends of the movable plate are provided with a semi-circular groove two that matches the corresponding semi-circular groove one. Each semi-circular groove two and the corresponding semi-circular groove one are limited to a plurality of ball bearings arranged in parallel.

[0009] Furthermore, the displacement system includes an electric actuator, a connecting rod, and a top plate; the electric actuator is vertically arranged, with its fixed end fixedly connected to the base plate, and its movable end fixedly connected to the lower end of the vertically arranged connecting rod. The top plate is fixed to the upper end of the connecting rod, and the top plate is located above the base plate, with a second rangefinder mounted on the top plate.

[0010] Furthermore, the clamping mechanism includes a fixed rod, a tension spring, a slider, and a clamping plate; a fixed rod is fixed to the side wall of the upright plate, and a tension spring and two sliders are fitted on the outside of the fixed rod. The two ends of the tension spring are fixedly connected to the corresponding sliders, and each slider is fixedly connected to the corresponding clamping plate. Both clamping plates are located above the base plate.

[0011] Furthermore, the middle part of the tension spring is fixedly connected to the middle part of the fixing rod.

[0012] Furthermore, each of the sliders is slidably connected to the upright plate via a groove.

[0013] Furthermore, a placement platform is fixed to the side wall of the upright plate, and a thickness gauge is installed on the placement platform.

[0014] Compared with the prior art, the beneficial effects of this utility model are: This invention effectively solves the technical bottlenecks of low efficiency, cumbersome operation, and high error in traditional manual measuring tools by employing a dual-detection system operating in both the transverse and longitudinal directions. The transverse detection system, through a sliding limit structure in conjunction with a first rangefinder, achieves precise measurement of length and width, avoiding errors caused by changes in positioning references when switching between multiple measuring tools. The longitudinal detection system, relying on a displacement mechanism driven by an electric actuator, automatically completes height measurement using a second rangefinder, improving detection efficiency while reducing labor intensity. The clamping mechanism uses a spring-slider-clamping plate structure to quickly fix parts, reducing the need for repositioning and ensuring measurement stability. The overall equipment integrates multi-dimensional dimensional detection onto a single platform through a structured design, achieving rapid, accurate, and low-error automated detection. This significantly improves the ease of operation and quality control in the dimensional detection of mechanical engineering parts, meeting the urgent needs of modern large-scale production for efficient and accurate detection. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 Rear view; Figure 3 yes Figure 1 Partial sectional view; Figure 4 yes Figure 3 Enlarged view of point A. Detailed Implementation

[0016] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0017] A mechanical engineering component dimensional measuring device includes a base plate 1, a vertical plate 3, a clamping mechanism, and a detection mechanism. The detection mechanism includes a transverse detection system and a longitudinal detection system. The transverse detection system includes a first rangefinder 5 and a sliding limit system. The longitudinal detection system includes a second rangefinder 18 and a displacement system. One end of the base plate 1 is vertically and fixedly connected to the lower end of the vertical plate 3. The first rangefinder 5 is slidably and limit-connected to the upper surface of the base plate 1 through the sliding limit system. The vertical plate 3 is provided with a clamping mechanism and a displacement system, and the second rangefinder 18 is installed on the displacement system.

[0018] Furthermore, the sliding limiting system includes a fixed plate 2, a movable plate 4, and threaded posts 9; two fixed plates 2 are fixedly arranged side by side on the upper surface of the base plate 1, the movable plate 4 is arranged perpendicularly to the fixed plates 2, and both ends of the movable plate 4 are slidably connected to the corresponding fixed plates 2 through sliding units, while each end of the movable plate 4 is threadedly screwed to the corresponding threaded post 9, and the lower end of each threaded post 9 is respectively matched with the corresponding fixed plate 2; a first rangefinder 5 is installed on the movable plate 4.

[0019] Furthermore, the sliding unit includes a semicircular groove 6, a semicircular groove 7, and ball bearings 8. Each of the two side walls of the fixed plate 2 has a semicircular groove 6 along its length, and both ends of the movable plate 4 have a semicircular groove 7 that matches the corresponding semicircular groove 6. Multiple ball bearings 8 are arranged side-by-side within each semicircular groove 7 and the corresponding semicircular groove 6. The rotation of the multiple ball bearings 8 reduces the friction of the movable plate 4, thereby allowing it to quickly reach the desired position.

[0020] Furthermore, the displacement system includes an electric actuator 15, a connecting rod 16, and a top plate 17; the electric actuator 15 is vertically arranged, the fixed end of the electric actuator 15 is fixedly connected to the base plate 1, the movable end of the electric actuator 15 is fixedly connected to the lower end of the vertically arranged connecting rod 16, the upper end of the connecting rod 16 is fixed with the top plate 17, the top plate 17 is arranged above the base plate 1, and a second rangefinder 18 is installed on the top plate 17.

[0021] Furthermore, the clamping mechanism includes a fixed rod 11, a tension spring 12, a slider 13, and a clamping plate 14; the side wall of the upright plate 3 is fixed with a fixed rod 11, and a tension spring 12 and two sliders 13 are fitted on the outside of the fixed rod 11. The two ends of the tension spring 12 are respectively fixedly connected to the corresponding sliders 13, and each slider 13 is respectively fixedly connected to the corresponding clamping plate 14. Both clamping plates 14 are located above the base plate 1.

[0022] Furthermore, the middle part of the tension spring 12 is fixedly connected to the middle part of the fixing rod 11 to improve the stability during use.

[0023] Furthermore, each of the sliders 13 is slidably connected to the vertical plate 3 via the groove 10, thereby improving the stability of the slider.

[0024] Furthermore, a placement platform 19 is fixed to the side wall of the upright plate 3, and a thickness gauge 20 is installed on the placement platform 19. The cylindrical wall of the cylindrical component can be placed on the placement platform 19, and the thickness of the cylindrical component can be read by the thickness gauge 20.

[0025] The working process of this utility model is as follows: S1: Place the rectangular parallelepiped components on the base plate 1; S2: Pull the two clamping plates 14 to both sides of the component, so that one end of the component is in contact with the upright plate 3. Then release the two clamping plates 14. Under the rebound of the tension spring 12, the clamping plates 14 will clamp the component and fix its position. S3: Push the movable plate 4 to slide until it is in contact with the other end face of the component, rotate the threaded column 9 so that it abuts against the base plate 1, and fix the position of the movable plate 4; S4: Turn on the first rangefinder 5 to read the data, and the length of the component can be obtained; S5: Similarly, measure the width of the component; S6: Start the electric actuator 15 to raise the connecting rod 16 so that one end of the top plate 17 is against the top of the component. Read the reading on the second rangefinder 18 to obtain the height of the component.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of the equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for measuring the external dimensions of mechanical engineering parts, characterized in that: The system includes a base plate (1), an upright plate (3), a clamping mechanism, and a detection mechanism. The detection mechanism includes a lateral detection system and a longitudinal detection system. The lateral detection system includes a first rangefinder (5) and a sliding limit system. The longitudinal detection system includes a second rangefinder (18) and a displacement system. One end of the base plate (1) is vertically fixedly connected to the lower end of the upright plate (3). The first rangefinder (5) is slidably limited to the upper surface of the base plate (1) through the sliding limit system. The upright plate (3) is provided with a clamping mechanism and a displacement system. The second rangefinder (18) is installed on the displacement system.

2. The mechanical engineering component external dimension measuring device according to claim 1, characterized in that: The sliding limit system includes a fixed plate (2), a movable plate (4), and a threaded post (9); two fixed plates (2) are fixed on the upper surface of the base plate (1) and are arranged in parallel. The movable plate (4) is perpendicular to the fixed plate (2), and the two ends of the movable plate (4) are slidably connected to the corresponding fixed plate (2) through a sliding unit. At the same time, each end of the movable plate (4) is threadedly connected to the corresponding threaded post (9), and the lower end of each threaded post (9) is respectively matched with the corresponding fixed plate (2); a first rangefinder (5) is installed on the movable plate (4).

3. The mechanical engineering component external dimension measuring device according to claim 2, characterized in that: The sliding unit includes a semicircular groove one (6), a semicircular groove two (7), and a ball bearing (8); each of the two side walls of the fixed plate (2) is provided with a semicircular groove one (6) along its length direction, and both ends of the movable plate (4) are provided with a semicircular groove two (7) that matches the corresponding semicircular groove one (6). Each semicircular groove two (7) and the corresponding semicircular groove one (6) are limited to a plurality of parallel balls bearing (8).

4. The mechanical engineering component external dimension measuring device according to claim 1, characterized in that: The displacement system includes an electric actuator (15), a connecting rod (16), and a top plate (17); the electric actuator (15) is vertically arranged, the fixed end of the electric actuator (15) is fixedly connected to the bottom plate (1), the movable end of the electric actuator (15) is fixedly connected to the lower end of the vertically arranged connecting rod (16), the upper end of the connecting rod (16) is fixed with the top plate (17), the top plate (17) is arranged above the bottom plate (1), and a second rangefinder (18) is installed on the top plate (17).

5. The mechanical engineering component external dimension measuring device according to claim 1, characterized in that: The clamping mechanism includes a fixed rod (11), a tension spring (12), a slider (13), and a clamping plate (14); the side wall of the upright plate (3) is fixed with a fixed rod (11), and a tension spring (12) and two sliders (13) are fitted on the outside of the fixed rod (11). The two ends of the tension spring (12) are fixedly connected to the corresponding sliders (13), and each slider (13) is fixedly connected to the corresponding clamping plate (14). The two clamping plates (14) are located above the bottom plate (1).

6. The mechanical engineering component external dimension measuring device according to claim 5, characterized in that: The middle part of the tension spring (12) is fixedly connected to the middle part of the fixing rod (11).

7. The mechanical engineering component external dimension measuring device according to claim 6, characterized in that: Each of the sliders (13) is slidably connected to the upright plate (3) via a groove (10).

8. A mechanical engineering component external dimension measuring device according to claim 1 or 7, characterized in that: The side wall of the upright plate (3) is fixed with a placement platform (19), and a thickness gauge (20) is installed on the placement platform (19).

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