Precise metal piece flatness testing fixture

Abstract

The utility model provides a precision metal piece flatness testing fixture, which relates to the technical field of metal piece testing fixtures and comprises a base, a servo motor mounted in the middle of the upper surface of the base, a speed reducer arranged above the servo motor, a metal block mounted above the speed reducer, and two extrusion pieces symmetrically arranged at the two ends of the metal block along the transverse center line of the metal block. According to the precision metal piece flatness detection tool, the threaded rod is rotated, the threaded rod drives the connecting support and the positioning rod to move, the positioning rod drives the extrusion pieces on the two sides to move synchronously, synchronous extrusion of the extrusion pieces on the two sides is achieved, and the precision metal piece flatness detection tool is high in precision. The coaxial fixation of the metal piece is ensured through center positioning, the adjusting process is simplified, the detection efficiency is improved, and the accuracy of the detection result is ensured.

Description

Technical Field

[0001] This utility model relates to the field of metal part inspection tools, and in particular to a precision metal part flatness inspection tool. Background Technology

[0002] Inspection tools are simple tools used by industrial manufacturing enterprises to control various dimensions of products (such as hole diameter, spatial dimensions, etc.), improve production efficiency and control quality. They are suitable for mass-produced products, such as automotive parts, to replace professional measuring tools, such as smooth plug gauges, thread plug gauges, and outside diameter calipers.

[0003] Chinese utility model patent CN216645203U discloses a precision metal part flatness inspection tool. The tool involves manually placing the circular metal part to be inspected inside a storage slot and fixing it in place. Then, a second slider is manually moved in conjunction with a second guide rod, aligning a dial indicator with the metal part. The second slider is then fixed in place. A threaded rod is manually driven to rotate. Since the threaded rod is connected to the first slider via a threaded connection, the first slider can slide downwards in conjunction with the first guide rod. The measuring end of the dial indicator then comes into contact with the surface of the metal part. The metal block is driven by a servo motor, and its rotation speed is adjusted by the interaction of different gears within a reducer. Simultaneously, the metal part placed inside the fabric slot rotates synchronously. After the metal part has rotated one revolution, the flatness of the metal part can be measured using the dial indicator, greatly improving the efficiency of metal part flatness inspection.

[0004] In the above design, the extrusion components on both sides are typically adjusted using independent threaded rods. Each extrusion component needs to be adjusted individually, making the adjustment process cumbersome and requiring multiple adjustments to ensure the metal components are securely fixed. This leads to a complex and time-consuming adjustment process, impacting testing efficiency. Furthermore, it cannot ensure that the components are fixed on the same axis, making it easy for the metal components to shift or tilt during the fixing process, affecting the accuracy of the test results, increasing testing errors, and impacting testing quality.

[0005] Therefore, it is necessary to provide a new precision metal parts flatness inspection tool to solve the above-mentioned technical problems. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides a precision metal parts flatness inspection tool.

[0007] The precision metal parts flatness inspection tool provided by this utility model includes a base, a servo motor is installed in the middle of the upper surface of the base, a reducer is provided above the servo motor, a metal block is installed above the reducer, two extrusion parts are symmetrically arranged at both ends of the metal block along its transverse center line, and a pusher is also provided on the outer wall of the metal block, which can drive the two extrusion parts to move synchronously.

[0008] Furthermore, rectangular grooves are provided through both ends of the metal block, and a threaded sleeve is fixedly connected to one side of the metal block.

[0009] Furthermore, the extrusion component includes a bending bracket, the outer side wall of which is slidably connected to the inner side wall of the rectangular groove, one end of which is fixedly connected to an extrusion plate, and the side of the bending bracket away from the extrusion plate is fixedly connected to an inclined block, on which an inclined groove is formed.

[0010] Furthermore, an arc-shaped groove is provided on the side of the extrusion plate away from the bending support.

[0011] Furthermore, the pusher includes a threaded rod, which is threadedly connected to the inner wall of the threaded sleeve. A connecting bracket is rotatably connected to the outer surface of the threaded rod, and positioning rods are fixedly connected to both ends of the connecting bracket. The positioning rods can slide along the inner wall of the inclined groove of the inclined block of the extrusion plate.

[0012] Furthermore, a U-shaped frame is welded to both sides of the base, a threaded rod is rotatably installed on the inner side of the U-shaped frame, a first guide rod is welded to both sides of the threaded rod, a first slider is installed on the outer wall of the first guide rod, a second guide rod is symmetrically welded to the side wall of the first slider, a second slider is installed on the outer wall of the second guide rod, and a dial indicator is installed on the lower surface of the second slider.

[0013] Compared with related technologies, the precision metal parts flatness inspection tool provided by this utility model has the following advantages:

[0014] This precision metal part flatness inspection tool uses a rotating threaded rod to drive the connecting bracket and positioning rod. The positioning rod then moves the extrusion parts on both sides synchronously, achieving synchronous extrusion of the extrusion parts on both sides. The center positioning ensures that the metal part is fixed coaxially, which not only simplifies the adjustment process and improves the inspection efficiency, but also ensures the accuracy of the inspection results. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure of the precision metal parts flatness inspection fixture provided by this utility model;

[0016] Figure 2 A schematic diagram of the structure of the metal block provided by this utility model;

[0017] Figure 3A cross-sectional view of the metal block provided by this utility model;

[0018] Figure 4 A schematic diagram of the structure of the pusher provided by this utility model.

[0019] The following are the labels in the diagram: 1. Base; 2. Servo motor; 3. Reducer; 4. Metal block; 5. Rectangular groove; 6. Threaded sleeve; 7. Bending bracket; 8. Extrusion plate; 9. Inclined block; 10. Inclined groove; 11. Threaded rod; 12. Connecting bracket; 13. Positioning rod. Detailed Implementation

[0020] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] Please refer to the following: Figure 1 , Figure 2 , Figure 3 as well as Figure 4 , Figure 1 A schematic diagram of the overall structure of the precision metal parts flatness inspection fixture provided by this utility model; Figure 2 A schematic diagram of the structure of the metal block provided by this utility model; Figure 3 A cross-sectional view of the metal block provided by this utility model; Figure 4 A schematic diagram of the structure of the pusher provided by this utility model.

[0022] In the specific implementation process, such as Figures 1 to 4 As shown, the precision metal part flatness inspection tool provided by this utility model includes a base 1, a servo motor 2 is installed in the middle of the upper surface of the base 1, a reducer 3 is provided above the servo motor 2, the servo motor 2 is used to drive the metal block 4 to rotate, the reducer 3 is installed above the servo motor 2 and is used to adjust the speed of the metal block 4, the metal block 4 is installed above the reducer 3, two extrusion parts are symmetrically arranged at both ends of the metal block 4 along its transverse center line, rectangular slots 5 are opened through both ends of the metal block 4, a threaded sleeve 6 is fixedly connected to one side of the metal block 4, and a pusher is also provided on the outer wall of the metal block 4, the pusher can drive the two extrusion parts to move synchronously;

[0023] The extrusion component includes a bending bracket 7, the outer side wall of the bending bracket 7 is slidably connected to the inner side wall of the rectangular groove 5, one end of the bending bracket 7 is fixedly connected to an extrusion plate 8, the side of the bending bracket 7 away from the extrusion plate 8 is fixedly connected to an inclined block 9, the inclined block 9 is provided with an inclined groove 10, and the side of the extrusion plate 8 away from the bending bracket 7 is provided with an arc-shaped groove.

[0024] The pusher includes a threaded rod 11, which is threaded to the inner wall of the threaded sleeve 6. A connecting bracket 12 is rotatably connected to the outer surface of the threaded rod 11. Positioning rods 13 are fixedly connected to both ends of the connecting bracket 12. The positioning rods 13 can slide along the inner wall of the inclined groove 10 of the inclined block 9 of the extrusion plate 8.

[0025] By rotating the threaded rod 11, the threaded rod 11 spirals within the inner wall of the threaded sleeve 6, changing the horizontal position of the threaded rod 11. This causes the connecting bracket 12, which is rotatably connected to it, to move. Through the cooperation of the pressing plate 8 and the threaded rod 11, the metal parts are firmly fixed during the inspection process, preventing movement and improving the inspection accuracy.

[0026] U-shaped frames are welded to both sides of the base 1. Threaded rods 11 are rotatably installed on the inner side of the U-shaped frames. First guide rods are welded to both sides of the threaded rods 11. A first slider is installed on the outer wall of the first guide rod. Second guide rods are symmetrically welded to the side walls of the first slider. A second slider is installed on the outer wall of the second guide rod. A dial indicator is installed on the lower surface of the second slider.

[0027] The working principle provided by this utility model is as follows: In specific implementation, this utility model...

[0028] By rotating the threaded rod 11, the threaded rod 11 spirals within the inner wall of the threaded sleeve 6, changing its horizontal position. This causes the connecting bracket 12, which is rotatably connected to it, to move. During the movement of the connecting bracket 12, the two positioning rods 13 slide within the inclined groove 10 of the inclined block 9, pulling the two inclined blocks 9 and the inclined groove 10 to a position flush with the positioning rods 13. This causes the inclined block 9 to drive the bent bracket 7 to slide within the rectangular groove 5 of the metal block 4, unfolding the two extrusion plates 8 located on the metal block 4. The circular metal part to be inspected is then manually placed inside the storage slot. Subsequently, the threaded rod 11 is rotated in the opposite direction until the extrusion plates 8 are in contact with the outer wall of the circular metal part, achieving self-locking through the threaded rod 11. Then, by manually moving the second slider in conjunction with the second guide rod, the dial indicator is aligned with the metal part, and the second slider is fixed. The threaded rod 11 is then manually driven to rotate. Since the threaded rod 11 is connected to the first slider by a thread, the first slider can slide downwards in conjunction with the first guide rod. Then, the measuring end of the dial indicator comes into contact with the surface of the metal part. After the servo motor 2 is powered on, the metal block 4 is driven to rotate by the servo motor 2. The rotation speed of the metal block 4 is adjusted by the interaction of different gears in the reducer 3. While the metal block 4 is rotating, the metal part placed inside the storage slot rotates synchronously. After the metal part has rotated one revolution, the flatness of the metal part can be measured by the dial indicator.

[0029] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to specific implementation methods. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A precision metal part flatness inspection tool, comprising a base (1), wherein a servo motor (2) is mounted on the middle of the upper surface of the base (1), a reducer (3) is provided above the servo motor (2), and a metal block (4) is mounted above the reducer (3), characterized in that, Two extrusion members are symmetrically arranged at both ends of the metal block (4) along its transverse center line. A pusher is also provided on the outer side wall of the metal block (4), which can drive the two extrusion members to move synchronously.

2. The precision metal parts flatness inspection tool according to claim 1, characterized in that, The metal block (4) has rectangular grooves (5) through both ends, and a threaded sleeve (6) is fixedly connected to one side of the metal block (4).

3. The precision metal parts flatness inspection tool according to claim 2, characterized in that, The extrusion component includes a bending bracket (7), the outer side wall of the bending bracket (7) is slidably connected to the inner side wall of the rectangular groove (5), one end of the bending bracket (7) is fixedly connected to an extrusion plate (8), and the side of the bending bracket (7) away from the extrusion plate (8) is fixedly connected to an inclined block (9), and an inclined groove (10) is provided on the inclined block (9).

4. The precision metal parts flatness inspection tool according to claim 3, characterized in that, The extrusion plate (8) has an arc-shaped groove on the side away from the bending bracket (7).

5. The precision metal parts flatness inspection tool according to claim 4, characterized in that, The pusher includes a threaded rod (11), which is threaded to the inner wall of the threaded sleeve (6). A connecting bracket (12) is rotatably connected to the outer surface of the threaded rod (11). Positioning rods (13) are fixedly connected to both ends of the connecting bracket (12). The positioning rods (13) can slide along the inner wall of the inclined groove (10) of the inclined block (9) of the extrusion plate (8).

6. The precision metal parts flatness inspection tool according to claim 5, characterized in that, The base (1) has U-shaped frames welded on both sides. A threaded rod (11) is rotatably installed on the inner side of the U-shaped frame. A first guide rod is welded on both sides of the threaded rod (11). A first slider is installed on the outer wall of the first guide rod. A second guide rod is symmetrically welded on the side wall of the first slider. A second slider is installed on the outer wall of the second guide rod. A dial indicator is installed on the lower surface of the second slider.

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