A compact multidirectional push block mechanism

Abstract

A compact multi-directional push block mechanism includes a base (10), a lead screw slider (20), a lead screw (30), four guide posts (40), and four push blocks (50). The base (10) has a movable cavity (11), a movable groove (12) is provided on the top wall of the base (10), and a guide groove (13) is provided on each of the four side walls of the base (10). The lead screw slider (20) is movably disposed in the movable groove (12), and a guide post (40) is movably disposed in each guide groove (13). Each guide post (40) is connected to a push block (50), and the lead screw slider (20) is threadedly connected to the lead screw (30). This application only requires one base to meet the workpiece pushing and clamping requirements in multiple directions, greatly reducing the space occupied; at the same time, the force direction during pushing and clamping is changed from horizontal to vertical, making use of the extra space at the top, making it faster to push and clamp the workpiece.

Description

Technical Field

[0001] This utility model relates to the field of tooling and fixture technology, and in particular to a compact multi-directional push block mechanism. Background Technology

[0002] The existing side-pushing mechanism only supports unidirectional pushing and clamping. If there is a need to push and clamp multiple workpieces in a narrow space, an additional side-pushing base is required, making the already limited space even more cramped. Moreover, it is necessary to achieve pushing and tightening by locking the bolts in the same direction as the push block guide. However, when locking the bolts in a narrow space, interference often occurs between the wrench or the bolts, making locking difficult.

[0003] Therefore, existing technologies need to be improved and enhanced. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a compact multi-directional push block mechanism that occupies little space and pushes the clamp more quickly.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A compact multi-directional push block mechanism includes a base, a lead screw slider, a lead screw, four guide posts, and four push blocks. The base has a movable cavity, and the top wall of the base is provided with a movable groove communicating with the movable cavity. Each of the four side walls of the base is provided with a guide groove communicating with the movable cavity. The lead screw slider is movably disposed in the movable groove. Each guide groove is movably disposed with a guide post that cooperates with the lead screw slider. Each guide post is connected to a push block. The lead screw slider is threadedly connected to the lead screw.

[0007] As a further embodiment of this utility model, the lead screw slider has four driving inclined surfaces, and each of the guide posts is provided with a passive inclined surface that cooperates with the driving inclined surface.

[0008] As a further embodiment of this utility model, a cover is provided above the base, a limiting groove is provided on the side of the cover near the base, and an annular limiting block is provided on the lead screw, the annular limiting block being rotatably installed in the limiting groove.

[0009] As a further embodiment of this invention, a screw handle is hinged to the end of the lead screw away from the base.

[0010] As a further embodiment of this utility model, the lead screw handle is hinged to the lead screw via a handle fixing pin.

[0011] As a further embodiment of this utility model, the lead screw slider has four outer wall surfaces, and each end of the guide post is provided with an inner wall surface that cooperates with the outer wall surface.

[0012] As a further embodiment of this invention, a gasket is provided between the guide post and the push block.

[0013] As a further embodiment of this invention, the cross-section of the guide groove is cam-shaped, and the shape of the guide post is adapted to the shape of the guide groove.

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

[0015] Due to the aforementioned structural design, where the movable groove and guide groove of the base are respectively equipped with a lead screw slider and a guide post, the guide post is connected to the push block, and the lead screw slider is threadedly connected to the lead screw. The lead screw drives the guide post to slide within the guide groove through the lead screw slider. This application requires only one base to meet the workpiece clamping needs in multiple directions, greatly reducing space occupation; at the same time, it changes the direction of force application during clamping from horizontal to vertical, utilizing the extra space at the top, making workpiece clamping faster. Attached Figure Description

[0016] Appendix Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0017] Appendix Figure 2 This is an exploded structural diagram of an embodiment of the present utility model;

[0018] Appendix Figure 3 This is a schematic cross-sectional view of the loosened structure in an embodiment of the present utility model;

[0019] Appendix Figure 4 This is a schematic cross-sectional view of the push-tightening structure according to an embodiment of the present utility model;

[0020] Appendix Figure 5 This is a schematic diagram of the structure of the cap according to an embodiment of the present utility model.

[0021] The labels in the diagram are as follows:

[0022] 10-Base, 20-Lead screw slider, 30-Lead screw, 40-Guide post, 50-Push block, 60-Shim, 70-Cap;

[0023] 11-Moving cavity, 12-Moving groove, 13-Guide groove;

[0024] 21-Driving inclined surface, 22-Outer wall surface;

[0025] 41-Passive inclined plane, 42-Inner wall surface;

[0026] 71-Limiting groove;

[0027] 31- Circular limit block, 32- Lead screw handle, 33- Handle fixing pin. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings:

[0029] The embodiments described with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," 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 application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0030] In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," 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 connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0031] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. Example

[0032] like Figure 1-5 As shown, this application discloses a compact multi-directional push block mechanism, including a base 10, a lead screw slider 20, a lead screw 30, four guide posts 40, and four push blocks 50. The base 10 has a movable cavity 11, and the top wall of the base 10 is provided with a movable groove 12 communicating with the movable cavity 11. Each of the four side walls of the base 10 is provided with a guide groove 13 communicating with the movable cavity 11. The lead screw slider 20 is movably disposed in the movable groove 12. Each guide groove 13 is movably disposed with a guide post 40 that cooperates with the lead screw slider 20. Each guide post 40 is connected to a push block 50. The lead screw slider 20 is threadedly connected to the lead screw 30. Through the above structural design, only one base is needed to meet the workpiece pushing and clamping requirements in multiple directions, greatly reducing the space occupation. At the same time, the force direction during pushing and clamping is changed from horizontal to vertical, making use of the extra space at the top, making workpiece pushing and clamping faster.

[0033] When this application is in operation, an external force is applied to rotate the lead screw, which in turn drives the lead screw slider to slide downward. The guide post is squeezed by the lead screw slider and restricted by the guide groove. The guide post is pushed outward, so that the push block pushes the workpiece tightly. When an external force is applied to rotate the lead screw in the opposite direction, it can be manually or with the help of tools to loosen and push it open, making it easy to remove the workpiece.

[0034] Specifically, the lower part of the lead screw slider 20 has four driving inclined surfaces 21, and each guide post 40 is provided with a passive inclined surface 41 that cooperates with the driving inclined surface 21. When the lead screw slider moves downward, the driving inclined surface drives the passive inclined surface, causing the guide post to be pushed outward along the guide groove. The lead screw slider 20 has four outer wall surfaces 22, and the end of each guide post 40 is provided with an inner wall surface 42 that cooperates with the outer wall surface 22. When the driving inclined surface of the lead screw slider passes the passive inclined surface, the outer wall surface of the lead screw slider abuts against the inner wall surface of the guide post, so that the push block can push the workpiece tightly. Even if the lead screw rotates slightly due to accidental contact during operation, it will not affect the position of the push block.

[0035] Specifically, a cover 70 is provided on the top of the base 10, and the four corners of the cover are fixed to the base by bolts. A limiting groove 71 is provided on the side of the cover 70 near the base 10. An annular limiting block 31 is provided on the lead screw 30. The annular limiting block 31 is rotatably installed in the limiting groove 71. The axial movement of the lead screw is prevented by the cooperation between the annular limiting block and the limiting groove.

[0036] Specifically, a screw handle 32 is hinged to the end of the lead screw 30 away from the base 10. The screw handle 32 is hinged to the lead screw 30 by a handle fixing pin 33. By setting a screw handle on the lead screw, it is convenient to apply external force to the lead screw.

[0037] Specifically, a washer 60 is provided between the guide post 40 and the push block 50, and two screws pass through the push block and the washer in sequence and are threaded to the guide post to fix the three together.

[0038] Specifically, the cross-section of the guide groove 13 is cam-shaped, and the shape of the guide post 40 is adapted to the shape of the guide groove 13.

[0039] In summary, this utility model, through the above-described structural design, overcomes the shortcomings of the prior art and features a reasonable structure, small footprint, and strong practicality.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A compact multidirectional push block mechanism characterized by: The device includes a base (10), a lead screw slider (20), a lead screw (30), four guide posts (40), and four push blocks (50). The base (10) has a movable cavity (11). The top wall of the base (10) is provided with a movable groove (12) that communicates with the movable cavity (11). Each of the four side walls of the base (10) is provided with a guide groove (13) that communicates with the movable cavity (11). The lead screw slider (20) is movably disposed in the movable groove (12). Each guide groove (13) is movably disposed with a guide post (40) that cooperates with the lead screw slider (20). Each guide post (40) is connected to a push block (50). The lead screw slider (20) is threadedly connected to the lead screw (30).

2. The compact multi-directional push block mechanism of claim 1, wherein: The lead screw slider (20) has four driving ramps (21), and each guide post (40) is provided with a passive ramp (41) that cooperates with the driving ramp (21).

3. The compact multi-directional push block mechanism of claim 2, wherein: A cover (70) is provided above the base (10). A limiting groove (71) is provided on the side of the cover (70) near the base (10). An annular limiting block (31) is provided on the lead screw (30). The annular limiting block (31) is rotatably installed in the limiting groove (71).

4. The compact multi-directional push block mechanism of claim 3, wherein: The end of the lead screw (30) away from the base (10) is hinged with a lead screw handle (32).

5. The compact multi-directional push block mechanism of claim 4, wherein: The lead screw handle (32) is hinged to the lead screw (30) by a handle fixing pin (33).

6. The compact multi-directional push block mechanism of claim 5, wherein: The lead screw slider (20) has four outer wall surfaces (22), and each guide post (40) has an inner wall surface (42) at its end that cooperates with the outer wall surface (22).

7. The compact multi-directional push block mechanism of claim 6, wherein: A gasket (60) is provided between the guide post (40) and the push block (50).

8. The compact multi-directional push block mechanism of claim 7, wherein: The cross-section of the guide groove (13) is cam-shaped, and the shape of the guide post (40) is adapted to the shape of the guide groove (13).

Images