An assembly device for a meter

Abstract

An assembly device for meter, comprising a workbench, a outer ring fixed on the workbench, an inner ring and a plane bearing arranged in the outer ring, the plane bearing is arranged at the lower part of the inner ring, the inner wall of the inner ring is processed with an inner gear ring, a driving motor is installed in the inner ring, the shaft end of the driving motor is installed with a gear, the gear is engaged with the inner gear ring, a rotating sleeve is fixed on the upper part of the inner ring, the upper part of the rotating sleeve is provided with a clamping jaw, a lower cylinder is fixed on the middle part of the inner ring, the shaft end of the lower cylinder is installed with a lower top block, an upper cylinder is coaxially installed on the upper part of the lower cylinder, the lower end of the upper cylinder is fixed with an upper pressing block, and a side baffle is installed on one side of the outer ring; the meter preliminarily assembled by artificial is placed on the assembly position of the device, the meter and the meter shell are tightly pressed by the action of the upper cylinder and the lower cylinder, the rotating sleeve is driven to rotate to make the force nut tightly screwed on the meter shell, and the assembly is realized; the device is convenient and efficient to operate, the tightness of the force nut is judged by the pressure sensor, the assembly precision of the product is high, and the service life is long.

Description

Technical Field

[0001] This utility model relates to an assembly device for measuring instruments. Background Technology

[0002] Figure 6 The diagram shows an assembly of a commonly used measuring instrument. The instrument consists of a housing 14 and a measuring device 15 built into the housing 14. The measuring device 15 is kept in the inner cavity 142 of the housing by a tightening nut 16 screwed into the opening of the housing 14. When assembling the measuring instrument in the workshop, the housing is usually placed upside down on a jig on the workbench with the opening facing upwards. After the measuring device is placed in, the worker uses a special tool to tighten the tightening nut. This operation is very laborious and inconvenient, and the tightening nut cannot be tightened properly, which affects the service life of the measuring instrument. Utility Model Content

[0003] To address the shortcomings mentioned above, this utility model provides an assembly device for measuring instruments.

[0004] To achieve the above objectives, this utility model provides an assembly device for a measuring instrument, comprising:

[0005] A workbench, on which an outer ring is fixed, and an inner ring and a plane bearing are built inside the outer ring. The plane bearing is located at the lower part of the inner ring, and an internal gear ring is machined on the inner wall surface of the inner ring.

[0006] A drive motor is installed inside the inner ring, and a gear is mounted on the shaft end of the drive motor, which meshes with the internal gear ring.

[0007] A rotating sleeve, which is fixed to the upper part of the inner ring, and the upper part of the rotating sleeve is provided with claws;

[0008] The lower cylinder is fixed in the middle of the inner ring, and a lower push block is installed on the shaft end of the lower cylinder. The lower push block is also located inside the rotating sleeve.

[0009] An upper cylinder is coaxially mounted on the upper part of the lower cylinder, and an upper pressure block is fixed to the lower end of the upper cylinder;

[0010] A side baffle, which is installed on one side of the outer ring;

[0011] The manually assembled meter is placed in the assembly position of the device. The upper and lower cylinders press the meter against the meter housing. The rotating sleeve rotates and drives the tightening nut to engage with the meter housing, thus completing the assembly.

[0012] Preferably, the upper part of the outer ring has a first inwardly forming convex edge, and the lower part of the inner ring has a second outwardly forming convex edge;

[0013] In the above technical solution, the inner ring and the outer ring are connected by a fitting structure formed by the first convex edge and the second convex edge, and the inner ring and the outer ring only rotate and do not move axially, so the movement is more stable.

[0014] Preferably, the rotating sleeve and the inner ring are fixedly connected by multiple bolts;

[0015] In the above technical solution, the detachable connection method facilitates the replacement of the rotating sleeve. However, in actual use, the pawls on the upper part of the rotating sleeve are prone to wear.

[0016] Preferably, the upper surface of the lower top block has a positioning protrusion;

[0017] In the above technical solution, the measuring instrument has a positioning hole. By matching the positioning protrusion with the positioning hole, the relative position of the measuring instrument and the instrument housing is determined.

[0018] Preferably, the position and height of the side baffle are adjustable;

[0019] In the above technical solution, the connecting end of the watch case is pressed against the side baffle by adjusting the side baffle.

[0020] Preferably, a pressure sensor is also installed on the side baffle, and the pressure sensor is electrically connected to the drive motor;

[0021] In the above technical solution, by setting a pressure sensor, the drive motor automatically stops when the tightening nut is tightened to a certain extent.

[0022] The advantages of this utility model over the prior art are as follows: This solution provides an automatic assembly device that is simple to operate, has high assembly efficiency, uses a pressure sensor to determine the tightness of the tightening nut, and results in high product assembly accuracy and long service life. Attached Figure Description

[0023] Figure 1 This is a front view of an assembly device for a measuring instrument according to the present invention.

[0024] Figure 2 This is a top view of an assembly device for a measuring instrument according to the present invention.

[0025] Figure 3 for Figure 1 A magnified view of position A in the middle;

[0026] Figure 4 This is a top view of the rotating sleeve;

[0027] Figure 5This is a top view of the bottom block;

[0028] Figure 6 This is an assembly drawing of the measuring instrument;

[0029] Figure 7 for Figure 6 Top view;

[0030] Figure 8 This is a schematic diagram of the watch case;

[0031] Figure 9 for Figure 8 Top view;

[0032] Figure 10 A schematic diagram of the measuring instrument;

[0033] Figure 11 for Figure 10 Top view;

[0034] Figure 12 This is a top view of the tightening nut;

[0035] Figure 13 This is the front view of the tightening nut.

[0036] In the diagram: 1. Workbench; 2. Outer ring; 21. First convex edge; 3. Planar bearing; 4. Inner ring; 41. Second convex edge; 42. Internal gear ring; 5. Drive motor; 6. Gear; 7. Rotating sleeve; 71. Claw; 8. Upper cylinder; 9. Upper pressure block; 10. Side baffle; 11. Pressure sensor; 12. Lower top block; 121. Positioning protrusion; 13. Lower cylinder; 14. Instrument housing; 141. Connecting end; 142. Inner cavity; 15. Measuring instrument; 151. Positioning hole; 16. Tightening nut; 161. Snap-fit ​​part. Detailed Implementation

[0037] like Figures 1-13As shown, an assembly device for a measuring instrument according to an embodiment of this utility model includes a workbench 1, on which an outer ring 2 is fixed. An inner ring 4 and a plane bearing 3 are housed within the outer ring 2. The plane bearing 3 is located at the lower part of the inner ring 4. An internal gear ring 42 is machined on the inner wall surface of the inner ring 4. The upper part of the outer ring 2 has a first inwardly forming convex edge 21, and the lower part of the inner ring 4 has a second outwardly forming convex edge 41. The first convex edge 21 and the second convex edge 41 form a fitting structure, making their rotation very stable. A drive motor 5 is installed inside the inner ring 4, and a gear 6 is mounted on the shaft end of the drive motor 5. The gear 6 meshes with the internal gear ring 42. A rotating sleeve 7 is fixedly connected to the upper part of the inner ring 4, and the upper part of the rotating sleeve 7 is provided with four claws 71. The rotating sleeve 7 and the inner ring 4 are fixedly connected by six bolts to form a detachable structure, facilitating the wear of the rotating sleeve 7. Replacement; the lower cylinder 13 is fixed in the middle of the inner ring 4, and a lower top block 12 is installed on the shaft end of the lower cylinder 13. The lower top block 12 is also located inside the rotating sleeve 7. The upper surface of the lower top block 12 has a positioning protrusion 121, which matches the positioning hole 151 of the meter 15 and is used to determine the relative position of the meter 15 and the meter housing 14. The upper cylinder 9 is coaxially installed on the upper part of the lower cylinder 13. The lower end of the upper cylinder 9 is fixed with an upper pressure block 8, and the lower part of the upper pressure block 8 matches the shape of the meter housing 14. The side baffle 10 is installed on one side of the outer ring 2. The position and height of the side baffle 10 are adjustable. A pressure sensor 11 is also installed on the side baffle 10. The pressure sensor 11 is electrically connected to the drive motor 5. By adjusting the position of the side baffle 10, the connecting end 141 of the meter housing 14 can abut against the pressure sensor 11.

[0038] The manually pre-assembled meter is placed in the assembly position of the device. The upper and lower cylinders press the meter against the meter housing. The rotating sleeve rotates to drive the tightening nut to engage with the meter housing, thus completing the assembly. This solution provides an automatic assembly device that is simple to operate, has high assembly efficiency, and uses a pressure sensor to determine the tightness of the tightening nut. The product has high assembly accuracy and a long service life.

[0039] In practical use, for ease of understanding of this utility model, it will be described in conjunction with the accompanying drawings;

[0040] The inner edge of the open end of the watch case is machined with internal threads, and the outer side of the tightening nut is machined with external threads. During assembly, the measuring instrument is placed inside the inner cavity 142 of the watch case, and the tightening nut is manually tightened onto the watch case initially. Afterward, the measuring instrument is placed on the device. See [link to documentation]. Figure 1The lower cylinder causes the positioning protrusion 121 of the lower top block to extend into the positioning hole 151 of the meter. At the same time, the position of the meter is appropriately swung so that the pawl 71 of the rotating sleeve is engaged in the locking part 161 of the clamping nut. The meter housing is rotated appropriately (at this time, the positions of the clamping nut and the meter no longer change), so that one connection end 141 of the meter housing abuts against the pressure sensor 11. After the upper cylinder presses the meter down, the drive motor is started. The drive motor drives the clamping nut to rotate through the inner ring and the rotating sleeve, while the meter and the meter housing do not rotate, realizing the engagement of the clamping nut with the meter housing. Afterwards, the pressure sensor detects a certain pressure value, the drive motor automatically stops, the upper cylinder returns to the high position, and the lower cylinder returns to the lower top block, which retracts into the rotating sleeve, making it easy to remove the assembled meter.

[0041] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An assembly device for a measuring instrument, characterized in that: include A workbench (1) is provided, on which an outer ring (2) is fixed. The outer ring (2) contains an inner ring (4) and a plane bearing (3). The plane bearing (3) is located at the lower part of the inner ring (4). An internal gear ring (42) is machined on the inner wall surface of the inner ring (4). A drive motor (5) is installed inside the inner ring (4). The shaft end of the drive motor (5) is equipped with a gear (6), which meshes with the inner gear ring (42). Rotating sleeve (7), the rotating sleeve (7) is fixed to the upper part of the inner ring (4), and the upper part of the rotating sleeve (7) is provided with claws (71); The lower cylinder (13) is fixed in the middle of the inner ring (4). The shaft end of the lower cylinder (13) is equipped with a lower top block (12), which is located inside the rotating sleeve (7). Upper cylinder (9) is coaxially mounted on the upper part of the lower cylinder (13), and an upper pressure block (8) is fixed at the lower end of the upper cylinder (9). Side baffle (10) is installed on one side of the outer ring (2).

2. The assembly device for a measuring instrument according to claim 1, characterized in that: The outer ring (2) has an inwardly forming first convex edge (21) at its upper part, and the inner ring (4) has an outwardly forming second convex edge (41) at its lower part.

3. The assembly device for a measuring instrument according to claim 1, characterized in that: The rotating sleeve (7) and the inner ring (4) are fixedly connected by multiple bolts.

4. The assembly device for a measuring instrument according to claim 1, characterized in that: The upper surface of the lower top block (12) has a positioning protrusion (121).

5. An assembly device for a measuring instrument according to claim 1, characterized in that: The position and height of the side baffle (10) are adjustable.

6. The assembly device for a measuring instrument according to claim 5, characterized in that: The side baffle (10) is also equipped with a pressure sensor (11), which is electrically connected to the drive motor (5).

Images