Pressure-maintaining mechanism and press-fitting machine having the same

Abstract

A pressure-maintaining mechanism includes a force-applying member, a pressure-bearing member, a tension-bearing member, an elastic member and a pressure member, wherein the pressure-bearing member is connected to the force-applying member, and the tension-bearing member is placed above the pressure-bearing member. One end of the elastic member is connected to the pressure-bearing member, and the other end is connected to the tension-bearing member, and is used to evenly pull the tension-bearing member. The pressure member is used to press the material onto the workpiece along a first direction. A press is used to press a material onto the surface of a workpiece, and includes a pressure head and the above-mentioned pressure-maintaining mechanism, wherein the force-applying member is used to connect the pressure head, and the pressure member is used to press the material onto the surface of the workpiece. The above-mentioned pressure-maintaining mechanism and press are used to apply pressure to the pressure member through the force-applying member, and the pressure member evenly pulls the tension member through the elastic member, so that the tension member evenly presses the material onto the workpiece through the pressure member, thereby achieving the purpose of complete fit between the material and the workpiece and ensuring the pressure-maintaining effect.

Description

Technical Field

[0001] The present application relates to a pressure-maintaining mechanism and a press machine having the mechanism. Background Art

[0002] Many waterproof seals in mobile phones currently utilize adhesive-backed gaskets. The complete fit of the adhesive gasket directly affects the sealing effect. Traditionally, soft materials (such as silicone or PU) have been used as indenters to directly adhere the adhesive gasket to the workpiece. However, due to errors introduced during processing or assembly, the indenter often fails to fully align with the adhesive surface, resulting in poor pressure retention and low product yield. Summary of the Invention

[0003] In view of this, it is necessary to provide a pressure-maintaining mechanism that ensures a pressure-maintaining effect and a press machine having the mechanism.

[0004] In one embodiment of the present application, a pressure-maintaining mechanism is provided, including a force-applying member, a pressure-bearing member, a tension member, an elastic member and a pressure member; the pressure-bearing member is connected to the force-applying member; the tension member is placed above the pressure-bearing member; the elastic member connects the pressure-bearing member and the tension member; the pressure member is fixed on the tension member and passes through the pressure member, and is used to press a material onto a workpiece.

[0005] In one embodiment, the pressure-maintaining mechanism further includes a correction portion and a reset groove, and the correction portion and the reset groove are respectively arranged on the pressure-bearing member or the tension-bearing member; when the force-applying member stops applying force, under the action of the tension of the elastic member, the groove wall of the reset groove contacts the correction portion to reset the tension-bearing member and prevent the tension-bearing member from rotating.

[0006] In one embodiment, the correction portion includes a sphere, and the tension member is provided with a receiving groove for receiving the sphere, and the side wall of the receiving groove can limit the movement of the sphere in the horizontal direction.

[0007] In one embodiment, the reset groove includes a first plane and a second plane, the first plane and the second plane form a certain angle and are arranged toward the sphere, for contacting the portion of the sphere exposed from the receiving groove to prevent the tension member from rotating in the horizontal direction.

[0008] In one embodiment, the pressure-bearing member is provided with a latch, the tension-bearing member is provided with a draw hook, and pull rings are provided at both ends of the elastic member and are respectively sleeved on the latch and the draw hook.

[0009] In one embodiment, the pressure-bearing member is provided with a through hole, and the pressure member passes through the pressure-bearing member through the through hole.

[0010] In one embodiment, the tension member is provided with an avoidance hole, and the tension member is sleeved on the force applying member through the avoidance hole.

[0011] In one embodiment, the compression member and the tension member are in the shape of an equilateral triangle, and the elastic member is respectively provided at the midpoint of each side of the equilateral triangle to uniformly pull the tension member.

[0012] In one embodiment of the present application, a press is further provided for pressing a material onto the surface of a workpiece, comprising a pressing head and the above-mentioned pressure maintaining mechanism, wherein the force applying member is used to connect the pressing head, and the pressing member is used to press the material onto the surface of the workpiece.

[0013] The above-mentioned pressure-maintaining mechanism and press machine apply pressure to the pressure-receiving part through the force-applying part, and the pressure-receiving part evenly pulls the tensioned part through the elastic part, so that the tensioned part evenly presses the material onto the workpiece through the pressure part, thereby achieving the purpose of complete fit between the material and the workpiece and ensuring the pressure-maintaining effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of a three-dimensional pressure-maintaining mechanism in one embodiment of the present application.

[0015] Figure 2 for Figure 1 A three-dimensional schematic diagram of a partial cross-section of the center pressure-holding mechanism.

[0016] Figure 3 for Figure 1 Cross-sectional view of the middle pressure-maintaining mechanism along AA.

[0017] Figure 4 for Figure 1 Exploded view of the center pressure-maintaining mechanism.

[0018] Figure 5 Schematic diagram of a three-dimensional pressure-maintaining mechanism and a press-fitting machine in one embodiment of the present application.

[0019] Description of main component symbols

[0020] Pressure holding mechanism 100

[0021] Material 200

[0022] Press 300

[0023] Indenter 310

[0024] Workpiece 400

[0025] Force member 10

[0026] Pressure piece 20

[0027] Latch 21

[0028] First hole 22

[0029] Through hole 23

[0030] Tensile member 30

[0031] Retractor 31

[0032] Nut 31a

[0033] Second hole 32

[0034] Avoidance hole 33

[0035] Elastic member 40

[0036] Pull ring 41

[0037] Pressing 50

[0038] Connecting column 51

[0039] Correction section 60

[0040] Sphere 61

[0041] Receiving slot 62

[0042] Reset slot 70

[0043] First plane 71

[0044] Second plane 72

[0045] Shock absorber 80 Specific embodiments

[0046] The technical solution of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0047] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may also be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a central component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0049] In one embodiment of the present application, a pressure-maintaining mechanism is provided, including a force-applying member, a pressure-bearing member, a tension member, an elastic member and a pressure member; the pressure-bearing member is connected to the force-applying member; the tension member is placed above the pressure member; the elastic member connects the pressure member and the tension member; the pressure member is fixed on the tension member and passes through the pressure member, and is used to press a material onto a workpiece.

[0050] In one embodiment of the present application, a press is further provided for pressing a material onto the surface of a workpiece, comprising a pressing head and the above-mentioned pressure maintaining mechanism, wherein the force applying member is used to connect the pressing head, and the pressing member is used to press the material onto the surface of the workpiece.

[0051] The above-mentioned pressure-maintaining mechanism and press machine apply pressure to the pressure-receiving part through the force-applying part, and the pressure-receiving part evenly pulls the tensioned part through the elastic part, so that the tensioned part evenly presses the material onto the workpiece through the pressure part, thereby achieving the purpose of complete fit between the material and the workpiece and ensuring the pressure-maintaining effect.

[0052] The following embodiments of the present application are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features therein may be combined with each other.

[0053] See also Figure 1 and Figure 2 , an embodiment of the present application provides a pressure-maintaining mechanism 100, which is used to ensure that the adhesive surface of the material is evenly stressed during the process of the adhesive surface of the material being adhered to the surface of the workpiece, so that the material can completely adhere to the surface of the workpiece, thereby improving the sealing effect. The pressure-maintaining mechanism 100 includes a force-applying member 10, a pressure-bearing member 20, a tension member 30, an elastic member 40 and a pressure member 50. The pressure-bearing member 20 is connected to the force-applying member 10. The tension member 30 is placed on the pressure-bearing member 20. The elastic member 40 is evenly arranged on the tension member 30 and the pressure member 20. When the force-applying member 10 presses the pressure member 20 downward, the elastic member 40 can pull the tension member 30 downward. One end of the pressure member 50 is connected to the tension member 30, and the other end is used to press the material onto the workpiece. The force-applying member 10 presses the pressure-receiving member 20 downward, and the pressure-receiving member 20 pulls the tension-receiving member 30 downward through the elastic member 40 . The tension-receiving member 30 presses the pressure member 50 downward to press the material.

[0054] See also Figure 2 、 Figure 3 and Figure 4The pressure-maintaining mechanism 100 also includes a correction portion 60 and a reset groove 70, and the correction portion 60 and the reset groove 70 are respectively arranged on the pressure-bearing member 20 or the tension-bearing member 30: if the correction portion 60 is arranged on the pressure-bearing member 20, the reset groove 70 is arranged on the tension-bearing member 30; or if the reset groove 70 is arranged on the pressure-bearing member 20, the correction portion 60 is arranged on the tension-bearing member 30. In the initial state, the correction part 60 contacts the reset groove 70; when the force-applying member 10 starts to apply force, the pressure member 20 will move away from the tension member 30, causing the correction part 60 to disengage from the reset groove 70, and during the force-applying process, the tension member 30 may rotate in the horizontal plane; when the force-applying member 10 stops applying force, under the tension of the elastic member 40, the pressure member 20 will approach the tension member 30, and during the approaching process, the groove wall of the reset groove 70 contacts the correction part 60 again to reset the tension member 30, thereby correcting the rotation angle of the tension member 30 in the horizontal plane, preventing the tension member 30 from rotating in the horizontal plane and affecting the pressure-maintaining effect.

[0055] See also Figure 2 and Figure 3 In one embodiment, the reset groove 70 is provided on the pressure member 20, and the correction portion 60 is provided on the tension member 30. The correction portion 60 includes a sphere 61. The tension member 30 is provided with a receiving groove 62 for receiving the sphere 61. The reset groove 70 is provided on the pressure member 20 along the radial direction. The groove wall of the reset groove 70 contacts the portion of the sphere 61 exposed from the receiving groove 62, and the sphere 61 drives the tension member 30 to reset by contacting the groove wall of the receiving groove 62.

[0056] See also Figure 4 In one embodiment, the reset groove 70 is substantially a V-shaped groove, including a first plane 71 and a second plane 72 . The first plane 71 and the second plane 72 form a certain angle between them and are arranged toward the sphere 61 .

[0057] In one embodiment, the cross-section of the receiving groove 62 is circular, and the radius is the same as that of the sphere 61, so that when resetting, the sidewalls of the receiving groove 62 can limit the movement of the sphere 61 in the horizontal plane, thereby allowing the sphere 61 to more efficiently contact the groove wall of the receiving groove 62 to drive the tension member 30 to reset. In other embodiments, the cross-section of the receiving groove 62 can also be triangular, square, or other polygonal.

[0058] See also Figure 4Specifically, the pressure member 20 and the tension member 30 are identical equilateral triangles, with a certain gap between them. The three reset grooves 70 extend from the center of gravity of the pressure member 20 to three corners, respectively. The three receiving grooves 62 are located at the three corners of the tension member 30, and the three spheres 61 are respectively placed in the three receiving grooves 62. When the force-applying member 10 begins to apply force, the pressure member 20 moves away from the tension member 30, causing the gap to increase. However, the radius of the sphere 61 ensures that the sphere 61 does not slip out of the gap, and the depth of the receiving groove 62 ensures that the sphere 61 can accommodate more than half of its volume. At the same time, the angles and heights of the first plane 71 and the second plane 72 ensure that the sphere 61 does not completely slip out of the reset groove 70, thereby preventing the sphere 61 from escaping from the receiving groove 62 or the reset groove 70 due to the increase in the gap during force application.

[0059] See also Figure 4 The three elastic members 40 are positioned at the midpoints of the three sides of an equilateral triangle. To facilitate securing the elastic members 40, the pressure member 20 is provided with three latches 21 and three first holes 22 at corresponding locations. Each latch 21 is inserted into a corresponding first hole 22 perpendicular to the axis of the first hole 22. The tension member 30 is provided with a hook 31 and a second hole 32, which is coaxial with the first hole 21. Pull rings 41 are provided at both ends of the elastic member 40. The pull ring 41 at one end of the elastic member 40 extends into the first hole 22 and fits over the latch 21. The pull ring 41 at the other end extends into the second hole 32 and fits over the hook 31. The hook 31 is located at the top of the tension member 30. The end facing away from the tension member 30 is threaded and threaded with a nut 31a. The hook 31 is secured to the tension member 30 via the nut 31a. A shock absorbing member 80 is provided between the bottom of the nut 31 a and the tension member 30 , and the shock absorbing member 80 is used for shock absorption.

[0060] See also Figure 4 The pressure piece 20 is provided with two through holes 23, and the pressure piece 50 is provided with two connecting columns 51. The two connecting columns 51 are respectively passed through the through holes 23, so that the top is connected to the tension piece 30, and the bottom of the pressure piece 50 is connected to the material.

[0061] See also Figure 4 The tension member 30 is provided with an escape hole 33 at its center, and the force applying member 10 is passed through the escape hole 33 to connect with the compression member 20. In one embodiment, the force applying member 10 is three columnar rods.

[0062] See also Figure 5In one embodiment of the present application, a press machine 300 is provided for pressing a material 200 onto the surface of a workpiece 400. The press machine 300 includes a pressing head 310 and the aforementioned pressure-maintaining mechanism 100. The force-applying member 10 is connected to the pressing head 310, and the pressing head 310 drives the force-applying member 10 to apply a downward force. The pressing member 50 is used to press the material 200 onto the surface of the workpiece 400.

[0063] It can be understood that in other embodiments, the pressure direction can be horizontal; the pressure member 20 and the tension member 30 can also be other shapes, such as a square; the reset groove 70 can also be a U-shaped groove; the correction part 60 can also be a hemispherical protrusion directly fixed on the pressure member 20 and the tension member 30.

[0064] The above-mentioned pressure-maintaining mechanism 100 and the press 300 apply pressure to the pressure-receiving member 20 through the force-applying member 10, and the pressure-receiving member 20 pulls the tension-receiving member 30 through the multiple elastic members 40, so that the tension-receiving member 30 presses the material 200 evenly onto the workpiece 400 through the pressing member 50, thereby achieving the purpose of complete fit between the material 200 and the workpiece 400 and ensuring the pressure-maintaining effect.

[0065] In addition, those skilled in the art should recognize that the above embodiments are merely intended to illustrate the present application and are not intended to limit the present application. As long as they are within the spirit of the present application, appropriate changes and modifications to the above embodiments are within the scope of disclosure of the present application.

Claims

1. A pressure maintaining mechanism, characterized in that: include: force applying member; A pressure-bearing member connected to the force-applying member; A tension member is placed above the compression member and sleeved on the force-applying member; an elastic member connecting the compression member and the tension member; and A pressing member, fixed to the tension member and passing through the pressure member, for pressing a material onto a workpiece; A correction portion and a reset groove, wherein the correction portion and the reset groove are respectively arranged on the pressure-bearing member or the tension-bearing member relative to each other; when the force-applying member starts to apply force, the pressure-bearing member moves away from the tension-bearing member, and the correction portion disengages from the reset groove; when the force-applying member stops applying force, under the action of the tension of the elastic member, the groove wall of the reset groove contacts the correction portion to reset the tension-bearing member, thereby preventing the tension-bearing member from rotating; The correction part includes a sphere, the tension member is provided with a receiving groove for receiving the sphere, the reset groove is provided on the pressure member along the radial direction, the groove wall of the reset groove contacts the portion of the sphere exposed from the receiving groove, and the sphere drives the tension member to reset by contacting the groove wall of the receiving groove; The reset groove includes a first plane and a second plane, wherein the first plane and the second plane form a certain angle between them and are arranged toward the sphere; The pressure-bearing member and the tension-bearing member are equilateral triangles of the same shape, with a certain gap between the pressure-bearing member and the tension-bearing member, the three reset grooves respectively extending from the center of gravity of the pressure-bearing member to three corners, the three receiving grooves being located at the three corners of the tension-bearing member, and the three spheres being respectively placed in the three receiving grooves; The elastic members are respectively arranged at the midpoint of each side of the equilateral triangle to evenly pull the tension member.

2. The pressure-maintaining mechanism according to claim 1, wherein: The pressure-bearing member is provided with a latch, the tension-bearing member is provided with a draw hook, and pull rings are provided at both ends of the elastic member and are respectively sleeved on the latch and the draw hook.

3. The pressure-maintaining mechanism according to claim 1, wherein: The pressure-bearing member is provided with a through hole, and the pressure member passes through the pressure-bearing member through the through hole.

4. The pressure-maintaining mechanism according to claim 1, wherein: The tension member is provided with an avoidance hole, and the tension member is sleeved on the force applying member through the avoidance hole.

5. A press for pressing a material onto a workpiece surface, comprising a pressing head, characterized in that: The press further comprises a pressure-maintaining mechanism as claimed in any one of claims 1 to 4, wherein the force-applying member is used to connect the pressure head, and the pressure member is used to press the material onto the surface of the workpiece.

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