CN219566536U - Automatic hold-down mechanism - Google Patents
Automatic hold-down mechanism Download PDFInfo
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- CN219566536U CN219566536U CN202320073137.4U CN202320073137U CN219566536U CN 219566536 U CN219566536 U CN 219566536U CN 202320073137 U CN202320073137 U CN 202320073137U CN 219566536 U CN219566536 U CN 219566536U
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- pressing
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- hold
- bearings
- automatic
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Abstract
The utility model discloses an automatic pressing mechanism which comprises two groups of pressing assemblies, wherein each pressing assembly comprises a pressing base, a spring piece, a bearing, a rotating shaft and a pressing block. The pressing base is arranged on the upper end face of the rail, at least one notch is arranged on the pressing side of the pressing base, coaxial holes are formed in the opposite sides of the notch, and bearing holes are formed in the orifices of the opposite sides of the coaxial holes; the spring piece is fixed on the notch; the two bearings are respectively fixed in the two opposite bearing holes; the rotating shaft is rotatably arranged in the coaxial hole in a penetrating way and penetrates through the two bearings; the compressing block is sleeved on the shaft body of the rotating shaft and is positioned between the two bearings, the compressing block is eccentrically arranged on the rotating shaft, and one end of the spring piece extends to the upper side of the compressing block and forms a pressing force on the compressing block. The automatic pressing mechanism provided by the utility model has the advantages that the pressing block presses the tray through the elastic force applied to the pressing block by the spring piece, the guide wheel is not needed, the action is simple, and the structure is simpler than that of the traditional guide wheel mechanism.
Description
Technical Field
The utility model relates to the technical field of rail conveying, in particular to an automatic pressing mechanism.
Background
In the fields of track conveying, nonstandard equipment requiring stable, and the like, when the running speed of a BGA tray (BGA is an IC package and the tray) on a track is too high, the tray does not run stably, vibration can occur, and even the tray is possibly separated from the track.
In order to solve the technical problems, the traditional mode is to guide and press the tray through a plurality of groups of guide wheels, and the traditional structure has the defects of multiple components, large size, inconvenient maintenance and inapplicability to small-sized rails.
Therefore, the conventional pressing mechanism needs improvement.
Disclosure of Invention
Aiming at the defects in the prior art, the technical problem to be solved by the utility model is to provide the automatic pressing mechanism, and the purpose of designing the automatic pressing mechanism is to automatically press the tray, so that the unstable operation of the tray is avoided, and the efficiency and the yield of BGA detection can be improved.
In order to solve the technical problems, the utility model is realized by the following scheme: the utility model relates to an automatic pressing mechanism, which comprises two groups of pressing assemblies which are arranged on the upper end face of a rail and are opposite in pressing end, wherein the pressing assemblies comprise:
the pressing base is arranged on the upper end face of the rail, at least one notch is arranged on the pressing side of the pressing base, coaxial holes are formed in the opposite sides of the notch, and bearing holes are formed in the orifices of the opposite sides of the coaxial holes;
a spring piece fixed to the notch;
the two bearings are respectively fixed in the two opposite bearing holes;
the rotating shaft is rotatably arranged in the coaxial hole in a penetrating way and penetrates through the two bearings;
the compression block is sleeved on the shaft body of the rotating shaft and is positioned between the two bearings, the compression block is eccentrically arranged on the rotating shaft, and one end of the spring piece extends to the upper side of the compression block and forms a compression force on the compression block.
Further, the compressing base is also provided with a limiting rod, and a rod body of the limiting rod extends to the lower side of the compressing block to limit the swing angle of the compressing block.
Further, the bottom surface of the compaction block is provided with a structure which can enable the tray to easily enter.
Further, the bottom surface of the compaction block is designed to be a downward convex cambered surface, so that the middle of the cambered surface is higher and the two sides of the cambered surface are lower in the moving direction of the tray.
Further, the top surface of the compression block is provided with a groove surface, and the extending end of the spring piece is pressed on the groove surface.
Further, the eccentric hole of the compaction block is close to the bottom surface of the notch.
Compared with the prior art, the utility model has the beneficial effects that:
1. the automatic pressing mechanism provided by the utility model has the advantages that the pressing block presses the tray through the elastic force applied to the pressing block by the spring piece, the guide wheel is not needed, the action is simple, and the structure is simpler than that of the traditional guide wheel mechanism.
2. The automatic pressing mechanism solves the problems of unstable operation of the tray, large volume of the original mechanism and complicated action when the tray moves on the track at an excessive speed.
3. The compaction block is provided with the downward convex cambered surface, and the tray is easy to guide in during feeding from the track operation.
4. The compressing block of the utility model is of an eccentric structure, which can automatically adjust the compressing force and prevent the clamping of materials.
5. The compressing base is provided with the limiting rod, so that the position of the compressing block is limited.
Drawings
Fig. 1 is a structural view of an automatic pressing mechanism of the present utility model.
Fig. 2 is an enlarged view of the lower structure of fig. 1.
Fig. 3 is a block diagram of the automatic hold-down mechanism of the present utility model mounted on a rail.
The reference numerals in the drawings: the device comprises a compression base 1, a spring piece 2, a compression block 3, a rotating shaft 4, a limiting rod 5, a bearing 6, a track 45 and a tray 100.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described in the following with reference to the drawings in the embodiments of the present utility model, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, and thus the protection scope of the present utility model is more clearly and clearly defined. In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
Example 1: the specific structure of the utility model is as follows:
referring to fig. 1-3, an automatic pressing mechanism of the present utility model includes two sets of pressing assemblies installed on an upper end surface of a rail 45 and having opposite pressing ends, where the pressing assemblies include:
the pressing base 1 is arranged on the upper end face of the rail 45, at least one notch is arranged on the pressing side of the pressing base 1, coaxial holes are formed on the opposite sides of the notch, and bearing holes are formed at the orifices of the opposite sides of the coaxial holes;
a spring plate 2 fixed to the notch;
the two bearings 6 are arranged, and the two bearings 6 are respectively fixed in the two opposite bearing holes;
the rotating shaft 4 is rotatably arranged in the coaxial hole in a penetrating way and penetrates through the two bearings 6;
the compression block 3 is sleeved on the shaft body of the rotating shaft 4 and is positioned between the two bearings 6, the compression block 3 is eccentrically arranged on the rotating shaft 4, and one end of the spring piece 2 extends to the upper side of the compression block 3 and forms a compression force on the compression block 3.
A preferred technical scheme of the embodiment is as follows: the compressing base 1 is also provided with a limiting rod 5, and the rod of the limiting rod 5
The body 2 extends below the compression block 3 to define the swing angle of the compression block 3.
A preferred technical scheme of the embodiment is as follows: the bottom surface of the compaction block 3 is provided with a structure which can enable the tray to easily enter.
A preferred technical scheme of the embodiment is as follows: the bottom surface of the compaction block 3 is designed to be a downward convex cambered surface, so that the middle of the cambered surface is higher and the two sides of the cambered surface are lower in the moving direction of the tray.
A preferred technical scheme of the embodiment is as follows: the top surface of the compression block 3 is provided with a groove surface, and the extending end of the spring piece 2 is pressed on the groove surface.
A preferred technical scheme of the embodiment is as follows: the eccentric hole of the compressing block 3 is close to the bottom surface of the notch.
Example 2:
as shown in fig. 3, two sets of pressing assemblies are provided on the rail 45, and two pressing blocks 3 are provided on each pressing assembly.
The tray 100 slides on the rail 45 and the outer part of the compression block 3 of the utility model is above the rail 45. When the tray 100 reaches the pressing block 3, the tray 100 may enter from a lower position of the downwardly convex arc surface of the pressing block 3. Because the middle part of the lower convex cambered surface is convex, and the two sides are low, when the tray 100 continues to move, the tray 100 can jack up the compression block 3, the compression block 3 is of an eccentric structure, and the compression block 3 swings upwards along the rotating shaft 4.
The spring piece 2 has a downward pressing force on the pressing block 3, so that the pressing block 3 has a downward pressing force on the tray 3, and when the linear motor stops supplying the force to the tray 100, the tray 100 is pressed by the two groups of pressing assemblies in fig. 3.
Example 3:
as shown in fig. 2, when the tray 100 is not arranged on the track 45, the acting force swing angle of the compression block 3 through the spring piece 2 is the largest, and in order to avoid the swing angle of the compression block 3 being too low, a limit rod 5 is arranged on one side of the compression base 1. One side of the compression block 3 is provided with a limit groove, and after the compression block 3 swings, the limit groove moves to the limit rod 5 and is blocked by the limit rod 5.
In summary, the automatic pressing mechanism provided by the utility model enables the pressing block to press the tray through the elastic force applied to the pressing block by the spring piece, a guide wheel is not needed, the action is simple, and the structure is simpler than that of a traditional guide wheel mechanism. The automatic pressing mechanism solves the problems of unstable operation of the tray, large volume of the original mechanism and complicated action when the tray moves on the track at an excessive speed. The compaction block is provided with the downward convex cambered surface, and the tray is easy to guide in during feeding from the track operation. The compressing block of the utility model is of an eccentric structure, which can automatically adjust the compressing force and prevent the clamping of materials. The compressing base is provided with the limiting rod, so that the position of the compressing block is limited.
The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present utility model or directly or indirectly applied to other related technical fields are included in the scope of the utility model.
Claims (6)
1. An automatic hold-down mechanism, its characterized in that, including installing in track (45) up end and compressing tightly two sets of hold-down assembly that the end is relative, this hold-down assembly includes:
the pressing base (1) is arranged on the upper end face of the track (45), at least one notch is arranged on the pressing side of the pressing base (1), coaxial holes are formed in the opposite sides of the notch, and bearing holes are formed in the orifices of the opposite sides of the coaxial holes;
a leaf spring (2) fixed to the slot;
the two bearings (6) are arranged, and the two bearings (6) are respectively fixed in the two opposite bearing holes;
the rotating shaft (4) is rotatably arranged in the coaxial hole in a penetrating way and penetrates through the two bearings (6);
the compression block (3) is sleeved on the shaft body of the rotating shaft (4) and is positioned between the two bearings (6), the compression block (3) is eccentrically arranged on the rotating shaft (4), and one end of the spring piece (2) extends to the upper side of the compression block (3) and forms a compression force on the compression block (3).
2. An automatic pressing mechanism according to claim 1, characterized in that the pressing base (1) is further provided with a limit rod (5), and the rod body of the limit rod (5) extends to the lower part of the pressing block (3) to limit the swinging angle of the pressing block (3).
3. An automatic hold-down mechanism according to claim 1, characterized in that the bottom surface of the hold-down block (3) is provided with a structure enabling easy access of the tray.
4. An automatic pressing mechanism according to claim 3, wherein the bottom surface of the pressing block (3) is provided with a downward convex arc surface, and the middle of the arc surface is higher and the two sides of the arc surface are lower in the moving direction of the tray.
5. An automatic hold-down mechanism according to claim 1, characterized in that the top surface of the hold-down block (3) has a groove surface against which the extending end of the spring plate (2) presses.
6. An automatic hold-down mechanism according to claim 1, characterized in that the eccentric hole of the hold-down block (3) is against the bottom surface of the slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320073137.4U CN219566536U (en) | 2023-01-10 | 2023-01-10 | Automatic hold-down mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320073137.4U CN219566536U (en) | 2023-01-10 | 2023-01-10 | Automatic hold-down mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219566536U true CN219566536U (en) | 2023-08-22 |
Family
ID=87648943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320073137.4U Active CN219566536U (en) | 2023-01-10 | 2023-01-10 | Automatic hold-down mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219566536U (en) |
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2023
- 2023-01-10 CN CN202320073137.4U patent/CN219566536U/en active Active
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