Fixed-height detection mechanism

Abstract

The utility model discloses a fixed height detection mechanism, which comprises a turntable mechanism, a grating measuring mechanism, a lifting mechanism, a measuring rod and a pressing mechanism, and is characterized in that the structure of the detection mechanism is improved, a valve iron is moved to a preset position through a turntable and is pressed and fixed by the pressing mechanism, and the measuring rod is moved by the lifting mechanism; the moving stability of the measuring rod is improved through guiding movement of the guiding mechanism, the jig seat is additionally arranged and fixed to the top face of a rotating disc in the rotating disc mechanism, the influence of the uneven top face of the rotating disc on measurement is reduced, the measuring accuracy is improved through cooperation, and the detection efficiency of the whole device is improved.

Description

Technical Field

[0001] This utility model relates to the field of detection device technology, specifically to a height-fixed detection mechanism. Background Technology

[0002] During the assembly and molding process of valve iron, various tests are required, such as the height test of predetermined components inside the valve iron. A common method is to fix the valve iron in the required position and use a lifting mechanism to drive the measuring rod to move upward and extend into the valve iron. The measuring rod is then connected to the corresponding grating measuring mechanism. This method has low testing efficiency and needs to be improved. Utility Model Content

[0003] To address at least one of the aforementioned technical deficiencies, this utility model provides the following technical solution:

[0004] This application discloses a height detection mechanism, including a turntable mechanism, a grating measurement mechanism, a lifting mechanism, a measuring rod, and a pressing mechanism. The moving end of the lifting mechanism is connected to the moving ends of the measuring rod and the grating measurement mechanism. The pressing mechanism is located above the measuring rod, and the turntable passes between the two in the turntable mechanism. It also includes a mounting base, a fixture base, and a guide mechanism. The lifting mechanism and the grating measurement mechanism are mounted on the mounting base located below the turntable. The fixture base is mounted on the turntable in the turntable mechanism. The top of the fixture base has a longitudinally arranged groove for placing a workpiece, and the bottom wall of the groove has a through hole extending to the bottom of the fixture base. The lifting mechanism moves the measuring rod in and out of the through hole. The moving end of the lifting mechanism is connected to the mounting base by a guide mechanism. The pressing mechanism is located above the fixture base and presses the workpiece at the fixture base.

[0005] This solution improves the structure of the detection mechanism by moving the valve iron to a predetermined position via a turntable, fixing it with a pressing mechanism, moving the measuring rod with a lifting mechanism, and guiding the movement with a guiding mechanism to improve the stability of the measuring rod's movement. In addition, a fixture seat is added, which is fixed to the top surface of the turntable in the turntable mechanism to reduce the impact of unevenness on the measurement caused by the top surface of the turntable. Together, these improvements help to improve the accuracy of the measurement and increase the detection efficiency of the entire device.

[0006] Furthermore, the lifting mechanism includes a shifting mechanism and a slide. The shifting mechanism is connected to the mounting base, and the slide is slidably connected to the mounting base. The slide and the mounting base are connected by a guide mechanism. The shifting mechanism may be a telescopic cylinder, etc. The addition of the slide facilitates the docking of measuring rods, etc.

[0007] Furthermore, it also includes a fixed base, which is elastically slidably connected to the mounting base in the longitudinal direction. A measuring rod is provided on the fixed base, and a hole for the measuring rod to pass through is provided at the mounting base above the fixed base. The elastic sliding connection helps to quickly reset the measuring rod and reduces damage to the valve iron during the measurement process.

[0008] Furthermore, it also includes a connecting column and an elastic element. The connecting column passes through the fixed base and is connected to the mounting base. An elastic element is provided on the connecting column, and both ends of the elastic element are connected to the connecting column and the fixed base respectively. A measuring rod is provided at the top of the fixed base. The elastic connection structure is simple and easy to assemble.

[0009] Furthermore, the fixed base is connected to the moving end of the grating measurement mechanism.

[0010] Furthermore, it also includes a mounting plate, which is connected to the base of the turntable mechanism. A pressing mechanism is provided on the mounting plate to facilitate docking with the pressing mechanism.

[0011] Furthermore, the pressing mechanism includes a telescopic mechanism and a pressing block. The pressing block is provided at the moving end of the telescopic mechanism. When the fixture seat moves to below the pressing block, the telescopic mechanism moves the pressing block down to press the workpiece at the fixture seat. The telescopic mechanism can be a telescopic cylinder, etc.

[0012] Furthermore, the guiding mechanism includes a matching guide hole and a guide rod, the guide rod being mounted on the slide and the mounting base being provided with a corresponding guide hole.

[0013] Furthermore, it also includes a limiting cylinder, which is fixed at the moving end of the lifting mechanism and the measuring rod extends out from the limiting cylinder. When the moving end of the lifting mechanism moves upward to the end of its stroke, the limiting cylinder abuts against the turntable in the turntable mechanism. The limiting cylinder helps to limit the upward stroke of the lifting mechanism and reduce the impact on valve iron, etc.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model moves the corresponding workpiece by turning a turntable, presses and fixes it by a pressing mechanism, and adds a guiding mechanism and a fixture seat, which facilitates more accurate operation such as fixed height detection of valve iron and improves detection efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the testing mechanism in Example 1;

[0018] Figure 2 This is a schematic diagram of the structure of the testing mechanism in Example 1;

[0019] Figure 3 yes Figure 1Schematic diagram of the structure after removing the limiting cylinder;

[0020] The attached figures are labeled as follows:

[0021] 1. Turntable mechanism; 2. Lifting mechanism; 3. Pressing mechanism; 4. Fixture base; 5. Guide rod; 6. Grating measuring mechanism; 7. Fixed base; 8. Measuring rod; 9. Limiting cylinder; 10. Valve iron; 11. Elastic element; 12. Connecting column; 13. Mounting plate; 14. Mounting base; 21. Slide; 22. Shifting mechanism; 31. Telescopic mechanism; 32. Pressure block; 61. Moving end; 100. Turntable. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] Example 1

[0024] like Figure 1 , Figure 2 , Figure 3 As shown, the height detection mechanism in this example includes a turntable mechanism 1, a grating measurement mechanism 6, a lifting mechanism 2, a measuring rod 8, and a pressing mechanism 3. The turntable mechanism 1 is a common indexing turntable type, and the drive mechanism drives the turntable to rotate. The grating measurement mechanism can be a commonly available model. The lifting mechanism includes a shifting mechanism 22 and a slide 21. The shifting mechanism 22 is like the telescopic cylinder shown in this example, but other shifting types, such as lead screws, can also be used. The sliding end of the shifting mechanism 22 is horizontally mounted on the slide 21, and the measuring rod is connected to the slide.

[0025] In this example, a mounting base 13, a fixture base 4, and a guiding mechanism are added. For example, the shifting mechanism 22 in the lifting mechanism 2 is fixed on the mounting base 13 located below the turntable 100. The slide 21 and the mounting base 14 are slidably connected by a slider, slide rail, etc. In this example, the slide 21 and the mounting base 13 are connected by a guiding mechanism, such as a guide hole and a guide rod 5. The guide hole is formed at the first end of the mounting base 14, and the guide rod 5 is fixed on the slide 21. The guide rod 5 passes through the guide hole, and the longitudinal movement of the guide rod is guided by the guide hole, which helps to improve the accuracy of the detection.

[0026] For the jig seat, if jig seat 4 is fixed on turntable 100 in turntable mechanism 1, the configuration of jig seat 4 can be selected according to requirements, such as the T-shaped shape shown in this example. The top surface of jig seat 4 is longitudinally formed with a mounting groove for inserting valve iron, and the bottom wall of the mounting groove is formed with a through hole extending to the bottom of jig seat. Figure 3 As shown, the lifting mechanism 2 moves the measuring rod 8 in and out of the through hole, so that the measuring rod moves upward to abut against the valve iron at a predetermined position. The measuring rod can be any common long rod shape.

[0027] A grating measuring mechanism 6 is installed on the mounting base 13. The measuring rod 8 is connected to the moving end 61 in the grating measuring mechanism 6. The movement of the measuring rod 8 corresponds to the movement of the moving end in the grating measuring mechanism, thereby detecting the movement distance of the measuring rod and determining whether the corresponding part in the valve iron is at the predetermined height.

[0028] To reduce damage to the valve body caused by the measuring rod, a fixed seat 7 is added in this example. The fixed seat 7 and the mounting seat 14 are elastically slidably connected in the longitudinal direction. For example, a connecting column 12 and an elastic element 11 are added. The connecting column 12 passes through the fixed seat 7 and is fixed to the mounting seat 14. A spring is fitted on the connecting column 12, with the spring serving as the elastic element 11. The two ends of the spring 11 abut against the ends of the connecting column 12 and the fixed seat 7, respectively. The measuring rod 8 is installed at the top of the fixed seat 7. A hole is formed in the mounting seat 14 above the fixed seat 7 for the measuring rod to pass through. The end of the measuring rod 8 protrudes from the hole. The fixed seat 7 is fixed to the moving end 61 in the grating measuring mechanism 6. The elastic connection structure provides a buffer. When the slide moves upward, the measuring rod moves upward. After abutting against the corresponding part in the valve body, the measuring rod can move backward with the fixed seat, and the spring is compressed. In addition, a limiting cylinder 9 can be added. For example, the limiting cylinder 9 is fixed at the moving end of the lifting mechanism 2, that is, fixed on the slide 21. The measuring rod 8 extends out from the limiting cylinder. When the moving end of the lifting mechanism 2 moves upward to the end of the stroke, the limiting cylinder abuts against the turntable in the turntable mechanism. The limiting cylinder helps to limit the upward movement of the lifting mechanism.

[0029] For the pressing mechanism, if the pressing mechanism 3 is located above the lifting mechanism 2, the rotating table 100 moves the fixture seat 4 between the pressing mechanism 3 and the lifting mechanism 2, and the pressing mechanism 3 presses the workpiece at the fixture seat 4. For example, a mounting plate 13 is horizontally fixed at the protruding seat in the middle of the rotating table 100, and the pressing mechanism 3 is installed on the mounting plate 13 above the lifting mechanism 2. The pressing mechanism 3 may include a telescopic mechanism 31 and a pressing block 32. The pressing block 32 is fixed at the moving end of the telescopic mechanism 31. The telescopic mechanism may be a telescopic cylinder. When the fixture seat moves below the pressing block, the telescopic mechanism moves the pressing block down to press the workpiece at the fixture seat. After that, the lifting mechanism moves the measuring rod for detection.

[0030] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A height detection mechanism, characterized in that, The system includes a turntable mechanism (1), a grating measurement mechanism (6), a lifting mechanism (2), a measuring rod (8), and a pressing mechanism (3). The moving end of the lifting mechanism (2) is connected to the moving ends of the measuring rod (8) and the grating measurement mechanism (6). The pressing mechanism (3) is located above the measuring rod (8), and the turntable (100) in the turntable mechanism (1) passes between the two. The system also includes a mounting base (14), a fixture base (4), and a guide mechanism. A lifting mechanism is provided on the mounting base (14) located below the turntable (100). Mechanism (2), grating measuring mechanism (6), in the turntable mechanism (1), a fixture seat (4) is provided on the turntable (100), the top of the fixture seat (4) has a longitudinally arranged placement groove for placing the workpiece, and the bottom wall of the placement groove is provided with a through hole extending to the bottom of the fixture seat. The lifting mechanism moves the measuring rod in and out of the through hole. The moving end of the lifting mechanism (2) is connected to the mounting base (14) by a guide mechanism. The pressing mechanism (3) is located above the lifting mechanism (2) and presses the workpiece at the fixture seat with the pressing mechanism.

2. The height detection mechanism as described in claim 1, characterized in that: The lifting mechanism (2) includes a shifting mechanism (22) and a slide (21). The shifting mechanism (22) is connected to the mounting base (14) and the slide (21) is slidably connected to the mounting base (14). The slide (21) and the mounting base (14) are connected by a guide mechanism.

3. The height detection mechanism as described in claim 2, characterized in that: It also includes a fixing seat (7), which is elastically slidably connected to the mounting seat (14) in the longitudinal direction. A measuring rod (8) is provided on the fixing seat (7), and a hole for the measuring rod to pass through is provided at the mounting seat (14) above the fixing seat (7).

4. The height detection mechanism as described in claim 3, characterized in that: It also includes a connecting column (12) and an elastic element (11). The connecting column (12) passes through the fixed seat (7) and is connected to the mounting seat (14). The elastic element (11) is provided on the connecting column (12) and both ends of the elastic element are connected to the connecting column and the fixed seat respectively. A measuring rod (8) is provided at the top of the fixed seat.

5. The height detection mechanism as described in claim 3, characterized in that: The fixed base (7) is connected to the moving end (61) of the grating measurement mechanism (6).

6. The height detection mechanism as described in claim 3, characterized in that: It also includes a mounting plate (13), which is connected to the seat in the turntable mechanism (1), and a pressing mechanism (3) is provided on the mounting plate (13).

7. The height detection mechanism as described in claim 3, characterized in that: The pressing mechanism (3) includes a telescopic mechanism (31) and a pressing block (32). The pressing block (32) is provided at the moving end of the telescopic mechanism (31). When the fixture seat moves to below the pressing block, the telescopic mechanism moves the pressing block down to press the workpiece at the fixture seat.

8. The height detection mechanism as described in claim 2, characterized in that: The guiding mechanism includes a matching guide hole and a guide rod (5). The guide rod (5) is mounted on the slide (21) and the mounting base (14) is provided with a corresponding guide hole.

9. The height detection mechanism as described in claim 1, characterized in that: It also includes a limiting cylinder (9), which is fixed at the moving end of the lifting mechanism and the measuring rod (8) extends out from the limiting cylinder. When the moving end of the lifting mechanism moves up to the end of the stroke, the limiting cylinder abuts against the turntable in the turntable mechanism.

Images