CN215720040U

CN215720040U - Self-adaptation pressurize mechanism and pressurize machine

Info

Publication number: CN215720040U
Application number: CN202121506042.4U
Authority: CN
Inventors: 刘毅; 王超; 邹文强; 丁刚; 吕俊辉
Original assignee: Lanto Electronic Ltd
Current assignee: Lanto Electronic Ltd
Priority date: 2021-07-02
Filing date: 2021-07-02
Publication date: 2022-02-01
Anticipated expiration: 2031-07-02

Abstract

The embodiment of the utility model discloses a self-adaptive pressure maintaining mechanism and a pressure maintaining machine, wherein elastic elements are arranged between a plurality of first guide rods and a plurality of second guide rods, the elastic elements are guided by an accommodating cavity and the first guide rods from the inside and the outside simultaneously, and when a pressure head maintains pressure on a workpiece, the height of the pressure head can be automatically adjusted according to the shape of the surface of the workpiece. Therefore, the requirement on the processing precision of the pressure head is lowered, the adaptability of the pressure head to different product shapes is improved, and the flatness of the pressure head is easier to debug; meanwhile, the self-adaptive pressure maintaining mechanism is prevented from being blocked due to the bending of the elastic element.

Description

Self-adaptation pressurize mechanism and pressurize machine

Technical Field

The utility model relates to the field of machine manufacturing, in particular to a self-adaptive pressure maintaining mechanism and a pressure maintaining machine.

Background

In the assembly process of electronic equipment such as mobile phones and tablet computers, in order to ensure that the glue adhesion between parts is firmer, pressure maintaining operation can be carried out on products after gluing. The traditional pressure head is integrally formed according to the surface shape of a product, and the pressure head in the form is inconvenient to adjust the flatness, high in cost and incapable of well adapting to different products.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the utility model provides a self-adaptive pressure maintaining mechanism and a pressure maintaining machine, wherein a pressure head can adapt to different product shapes, and meanwhile, the processing precision of the pressure head is reduced.

According to a first aspect of embodiments of the present invention, there is provided an adaptive pressure maintaining mechanism, including:

a frame having a plurality of first guide holes;

the first guide rods are arranged corresponding to the first guide holes, and can be movably arranged in the first guide holes, one end of each first guide rod is provided with an accommodating cavity, the other end of each first guide rod is provided with a pressure head, and the pressure head extends out of the second guide holes;

the second guide rods correspond to the first guide rods one by one and are arranged on the rack, and the positions of the second guide rods correspond to the positions of the first guide rods; and

and one end of the elastic element is accommodated in the accommodating cavity, and the other end of the elastic element is sleeved on the second guide rod and acts on the rack and the accommodating cavity by utilizing elastic force.

Wherein, the pressure head is used for pressing on the surface of the workpiece during pressure maintaining.

Further, the second guide bar has a positioning step abutting against the other end of the elastic member.

Further, the frame has a plurality of second guide holes corresponding to the first guide holes, and the second guide rods are movably disposed in the second guide holes, wherein the elastic force of the elastic element is used to keep the first guide rods stable, and the positioning step is used to limit the second guide rods to move away from the elastic element when the frame is pressed.

Further, the adaptive pressure maintaining mechanism further comprises: and the adjusting bolt is arranged in the second guide hole and is adjacent to the second guide rod, and the adjusting bolt is used for adjusting the elasticity of the elastic element during pressure maintaining.

Further, the elastic element is at least one of a spring or a rubber pad.

Further, the rack includes:

a top portion, the first guide hole being located at the top portion;

a bottom, the second guide hole being located at the bottom; and

the top and the bottom are fixedly connected to the frame.

Further, the first guide bar includes: the boss is located at one end of the accommodating cavity and used for being matched with the bottom to prevent the first guide rod from falling off from the bottom.

Further, the plurality of pressing heads are uniformly distributed on the circumference.

Further, the pressure head is of a cylindrical structure, and the end face, which is in contact with the workpiece, is a plane.

In a second aspect, an embodiment of the present invention further provides a pressure maintaining machine, including:

a linear guide rail;

connecting blocks; and

the adaptive pressure maintaining mechanism according to the first aspect, the adaptive pressure maintaining mechanism being movably provided on the linear guide rail through the connecting block.

According to the self-adaptive pressure maintaining mechanism and the pressure maintaining machine, the elastic elements are arranged between the first guide rods and the second guide rods, so that the elastic elements are guided by the accommodating cavity and the first guide rods from the inside and the outside simultaneously, and when the pressure head maintains pressure on a workpiece, the height of the pressure head can be automatically adjusted according to the shape of the surface of the workpiece. Therefore, the requirement on the processing precision of the pressure head is lowered, the adaptability of the pressure head to different product shapes is improved, and the flatness of the pressure head is easier to debug; meanwhile, the self-adaptive pressure maintaining mechanism is prevented from being blocked due to the bending of the elastic element.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural diagram of an adaptive pressure maintaining mechanism according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of A-A of FIG. 1 in an unpressurized state according to an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of the embodiment of the present invention from A-A to a dwell state of FIG. 1;

FIG. 4 is a schematic view of a first guide bar of an embodiment of the present invention;

FIG. 5 is a schematic view of a second guide bar of an embodiment of the present invention;

FIG. 6 is a schematic diagram of a top view of an adaptive pressure maintaining mechanism according to an embodiment of the present invention;

fig. 7 is a rear view structural schematic diagram of a pressure maintaining machine according to an embodiment of the utility model.

Description of reference numerals:

1-a frame; 11-a second pilot hole; 12-a first pilot hole; 13-bottom; 14-top; 15-a frame; 2-a second guide bar; 21-positioning steps; 3-a first guide bar; 31-an accommodating cavity; 32-pressure head; 33-a boss; 4-a resilient element; 5-adjusting the bolt; 6, fixing blocks; 7-a linear guide rail; 8-workpiece.

Detailed Description

The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth. It will be apparent to one skilled in the art that the present invention may be practiced without these specific details. Well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the present invention.

In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are intended to be inclusive and mean that, for example, they may be fixedly connected or detachably connected or integrally formed; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Spatially relative terms, such as "inner," "outer," "below," "lower," "above," "upper," and the like, are used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the example term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Fig. 1 is a schematic structural view of an adaptive pressure holding mechanism according to an embodiment of the present invention, and fig. 2 and 3 are schematic sectional views of a-a of fig. 1 toward an unpressurized state and a pressure holding state, and as shown in fig. 1-3, the adaptive pressure holding mechanism according to an embodiment of the present invention includes a frame 1, a plurality of first guide rods 3, a plurality of second guide rods 2, and an elastic member 4, wherein the frame 1 has a plurality of first guide holes 12, the plurality of first guide rods 3 are disposed corresponding to the respective first guide holes 12, the respective first guide rods 3 are movably disposed in the first guide holes 12, and have a receiving chamber 31 at one end and a pressure head 32 at the other end, and the pressure head 32 protrudes from the first guide holes 12. A plurality of second guide bars 2 and first guide bar 3 one-to-one and set up in frame 1, and second guide bar 2 position is corresponding with first guide bar 3 position. The self-adaptive pressure maintaining mechanism further comprises an elastic element 4, one end of the elastic element 4 is accommodated in the accommodating cavity 31, the other end of the elastic element is sleeved on the second guide rod 2 and acts on the rack 1 and the accommodating cavity 31 through elasticity, and the pressure head 32 is used for pressing the surface of the workpiece 8 during pressure maintaining.

Preferably, the extension length of the second guide rod 2 disposed on the frame 1 should be controlled within a certain range, so as to avoid the second guide rod 2 from being too long, and finally cause the bottom of the second guide rod 2 to collide with the bottom of the accommodating groove 31 due to the reduction of the length of the elastic element 4 during the pressure maintaining process. Specifically, the distance from the bottom of the second guide bar 2 to the bottom of the accommodating groove 31 should be less than the maximum compression amount of the elastic member.

It is easily understood that fig. 1 shows only one of the workpieces 8 applicable to the adaptive pressure holding mechanism in the present embodiment, and since the plurality of rams 32 are each independently provided and moved, the pressure holding device of the present embodiment can also be applied to pressure holding of workpieces 8 of various other shapes. For example, in addition to the workpiece 8 shown in fig. 1 having a circular surface shape, a rectangular or trapezoidal shape may be included, but not limited to.

Flatness refers to the deviation of the height of a macro relief of a substrate from an ideal plane. The tolerance zone is the area between two parallel planes separated by the tolerance value. The flatness belongs to the shape error in the form and position errors. The self-adaptive pressure maintaining mechanism of the embodiment utilizes the elastic elements 4 arranged between the first guide rods 3 and the second guide rods 2, the elastic elements 4 are simultaneously guided from the inside and the outside by the accommodating cavity 31 and the first guide rods 3, and when the pressure head 32 maintains pressure on the workpiece 8, the height of the pressure head 32 can be automatically adjusted according to the shape of the surface of the workpiece 8. Therefore, the requirement on the processing precision of the pressure head 32 is lowered, the adaptability of the pressure head 32 to different product shapes is improved, and the flatness of the pressure head 32 is easier to debug; meanwhile, the phenomenon that the self-adaptive pressure maintaining mechanism is blocked due to the bending of the elastic element 4 is avoided.

In other embodiments, the second guiding rod 2 is configured to be movably disposed in the second guiding hole 11, and the second guiding rod 2 slides down along the second guiding hole 11 due to gravity and finally falls into the accommodating cavity 31. When the adaptive pressure maintaining mechanism applies pressure to the workpiece 8, the first guide rod 3 pushes the second guide rod 2 to move upwards together. Preferably, the length of the second guide bar 2 in this embodiment is greater than a certain value to prevent the second guide bar 2 from completely sliding out of the second guide hole 11 when sliding down. While the second guide hole 11 may be a through hole to prevent the second guide bar 2 from interfering with the housing 1 when it is held up.

Fig. 4 is a schematic view of the first guide bar, and as shown in fig. 2 and 4, further, the second guide bar 2 has a positioning step 21, and the positioning step 21 abuts on the other end of the elastic member 4. When the positioning step 21 is not present, as in the above-described embodiment, the elastic force of the elastic member 4 directly acts on the frame 1. In this embodiment, the positioning step 21 disposed on the second guide rod 2 can prevent the elastic element 4 from directly contacting the frame 1, and at this time, the positioning step 21 can generate a downward pushing force on the elastic element, thereby reducing the use length of the elastic element 4.

As shown in fig. 2 to 3, in some embodiments, the frame 1 has a plurality of second guide holes 11 corresponding to the first guide holes 12, and the second guide rods 2 are movably disposed in the second guide holes 11, wherein the elastic force of the elastic member 4 is used to keep the first guide rods 3 stable, and the positioning step 21 is used to limit the movement of the second guide rods 2 in a direction away from the elastic member 4 when the pressure is applied. In the present embodiment, the first guide rod 3 and the second guide rod 2 are configured to move up and down simultaneously, and at this time, the elastic element 4 not only plays a role of adjusting the pressure head 32 during pressure maintaining, but also provides a support for the second guide rod 2 during non-pressure maintaining, and prevents the second guide rod from falling into the accommodating cavity 31. When the self-adaptive pressure maintaining mechanism is used for maintaining pressure, as the second guide rod 2 pushes the first guide rod 3 to move upwards through the elastic element 4 (indicated by an arrow in fig. 3), the positioning step 21 is contacted with the machine frame 1 when moving to a certain height, so that the second guide rod 2 is prevented from continuously moving upwards, at the moment, the workpiece 8 is continuously pressed, the elastic element 4 can deform, and the pressure head 32 can perform adaptive height adjustment on the surface of the workpiece.

Further, the adaptive pressure maintaining mechanism further comprises: and the adjusting bolt 5 is arranged in the second guide hole 11 and is adjacent to the second guide rod 2, and the adjusting bolt 5 is used for adjusting the elastic force of the elastic element 4 during pressure maintaining. Alternatively, when the adaptive pressure maintaining mechanism performs pressure maintaining, the positioning step 21 moves upward and eventually contacts the frame 1, thereby restricting the second guide rod 2 from moving upward. In this embodiment, the adjusting bolt 5 is disposed above the second guide rod 2 (in the second guide hole 11), and in this case, in addition to the positioning step 21, the adjusting bolt 5 can be used to control the second guide rod 2 to move downward from the position where the positioning step 21 contacts the frame 1, so as to control the compression ratio of each elastic element 4 individually. Preferably, the adjusting bolt 5 is a setscrew for making the structure of the pressure maintaining mechanism more compact. The screwing end of the stop screw is embedded into the stop screw, so that the structure is smaller, the limit of a bolt head is avoided, and the stop screw can be screwed into the second guide hole 11 more deeply. According to hooke's law, the elasticity that elastic element 4 produced is positive correlation with the deformation of elastic element 4, and during the pressurize of this embodiment, the skilled person can select according to actual need to screw in or screw out a certain or some adjusting bolt 5 to change the pressure of self-adaptation pressurize mechanism to certain or some positions on work piece 8 surface.

In some embodiments, the resilient element 4 is at least one of a spring or a rubber pad. The spring has a larger compression ratio than the rubber pad, and therefore, when the surface of the workpiece is uneven, the spring may be preferably used as the elastic member 4.

As shown in fig. 1, in some embodiments, the rack includes a top portion 14, a bottom portion 13, and a frame 15, the second guiding hole 11 is located at the top portion 14, the first guiding hole 12 is located at the bottom portion 13, and both the top portion 14 and the bottom portion 13 are fixed to the frame 15. The frame 15 in this embodiment provides a space for the movement of the first guide rod 3 and the second guide rod 2, and the weight of the adaptive pressure maintaining mechanism is reduced.

Fig. 5 is a schematic view of the second guide rod, and as shown in fig. 5, further, the first guide rod 3 includes a boss 33 at one end of the accommodating cavity 31, and the boss 33 is used for cooperating with the bottom 13 to prevent the first guide rod 3 from falling off the bottom 13. When the adaptive pressure maintaining mechanism does not perform the pressure maintaining operation, the first guide rod 3 moves downward due to its own weight and the elastic member 4, and finally drops from the bottom portion 13. In the present embodiment, a boss is provided at the upper end of the second guide bar 2, and the outermost distance of the boss is greater than the minimum inner diameter of the first guide hole 12, so that the second guide bar 2 does not fall from the bottom 13.

Further, in the present embodiment, the plurality of pressing heads 32 are uniformly distributed circumferentially, and the first guide holes 12 and the second guide holes 11 corresponding to the pressing heads in the present embodiment are also uniformly distributed circumferentially. Fig. 6 shows the position distribution of the second guide holes 11 corresponding to the first guide holes 12. The arrangement of the indenter 32 in this embodiment can uniformly apply pressure to the workpiece 8 to avoid uneven stress on the workpiece 8. Alternatively, the distribution of the indenters 32 can be various, including but not limited to an elliptical, rectangular, etc. distribution, and one skilled in the art can select the distribution of the indenters 32 according to the actual requirement. Preferably, the number of indenters 2 is 8. In other embodiments, when irregular projections of the workpiece 8 are present, the indenters 32 may also be non-uniformly distributed in order to avoid the projecting portions.

In some embodiments, the ram 32 is a cylindrical structure and the end surface that contacts the workpiece 8 is planar. To facilitate the mounting and dismounting of the second guide bar 2, the indenter 32 is configured in a cylindrical configuration while avoiding scratching the surface of the workpiece, and the end surface of the indenter 32 that contacts the workpiece is flat. Preferably, each ram 32 plane may be configured to have a smaller area so that the adaptive dwell mechanism can accommodate more forms of workpiece 8 surface.

Fig. 7 is a schematic diagram of a rear view structure of a pressure maintaining machine, as shown in fig. 7, in an alternative implementation manner, the pressure maintaining machine according to the embodiment of the present invention includes a linear guide rail 7, a connecting block 6, and an adaptive pressure maintaining mechanism in the above embodiment, and the adaptive pressure maintaining mechanism is movably disposed on the linear guide rail 7 through the connecting block 6. In the pressure maintaining machine of the embodiment, the elastic element 4 is arranged between the plurality of first guide rods 3 and the plurality of second guide rods 2, the elastic element 4 is simultaneously guided from the inside and the outside by the accommodating cavity 31 and the first guide rods 3, and when the pressure head 32 maintains pressure on the workpiece 8, the height of the pressure head 32 can be automatically adjusted according to the shape of the surface of the workpiece 8. Therefore, the requirement on the processing precision of the pressure head 32 is reduced, the adaptability of the pressure head 32 to different product shapes is improved, and the flatness of the pressure head 32 is easier to debug. Further, the press protection mechanism can be applied to more types of workpieces; meanwhile, the phenomenon that the self-adaptive pressure maintaining mechanism is blocked due to the bending of the elastic element 4 is avoided.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An adaptive pressure maintaining mechanism, characterized in that, the adaptive pressure maintaining mechanism includes:

a frame (1) having a plurality of first guide holes (12);

the first guide rods (3) are arranged corresponding to the first guide holes (12), each first guide rod (3) is movably arranged in the first guide hole (12), one end of each first guide rod is provided with an accommodating cavity (31), the other end of each first guide rod is provided with a pressing head (32), and the pressing heads (32) extend out of the first guide holes (12);

the second guide rods (2) correspond to the first guide rods (3) one by one and are arranged on the rack (1), and the positions of the second guide rods (2) correspond to the positions of the first guide rods (3); and

one end of the elastic element (4) is accommodated in the accommodating cavity (31), and the other end of the elastic element is sleeved on the second guide rod (2) and acts on the rack (1) and the accommodating cavity (31) by utilizing elasticity;

wherein the pressure head (32) is used for pressing the surface of the workpiece (8) during pressure maintaining.

2. The adaptive dwell mechanism according to claim 1, characterized in that the second guide rod (2) has a positioning step (21), the positioning step (21) abutting the other end of the elastic element (4).

3. The adaptive pressure maintaining mechanism according to claim 2, wherein the frame (1) has a plurality of second guide holes (11) corresponding to the first guide holes (12), and the second guide rod (2) is movably disposed in the second guide holes (11), wherein the elastic force of the elastic member (4) is used to stabilize the first guide rod (3), and the positioning step (21) is used to restrict the second guide rod (2) from moving away from the elastic member (4) when maintaining the pressure.

4. The adaptive dwell mechanism of claim 3, further comprising: and the adjusting bolt (5) is arranged in the second guide hole (11) and is adjacent to the second guide rod (2), and the adjusting bolt (5) is used for adjusting the elastic force of the elastic element (4) during pressure maintaining.

5. The adaptive pressure maintaining mechanism according to claim 1, characterized in that the elastic element (4) is at least one of a spring or a rubber pad.

6. The adaptive dwell mechanism of claim 3, wherein the frame comprises:

a top portion (14), said second guide hole (11) being located at said top portion (14);

a bottom (13), said first guide hole (12) being located at said bottom (13); and

a frame (15), the top portion (14) and the bottom portion (13) being fixedly connected to the frame (15).

7. The adaptive dwell mechanism of claim 6, wherein the first guide rod comprises: a boss (33) at one end of the accommodating cavity (31), the boss (33) being used for matching with the bottom (13) to prevent the first guide rod (3) from falling off from the bottom (13).

8. The adaptive dwell mechanism according to claim 1, wherein the plurality of pressure heads (32) are circumferentially evenly distributed.

9. The adaptive pressure maintaining mechanism according to claim 1, characterized in that the ram is of a cylindrical structure, and an end surface that contacts the workpiece (8) is a flat surface.

10. A pressurizer, characterized in that, the pressurizer includes:

a linear guide rail (7);

a connecting block (6); and

the adaptive dwell mechanism according to any of claims 1-9, which is movably arranged on the linear guide rail (7) by means of the connecting block (6).