TWI886066B - Fixture for assembling button and positioning method - Google Patents

Abstract

A fixture for assembling button and a positioning method are provided. The fixture for assembling button includes a base and a block. The base includes a first body, multiple metal strips and a first magnet. The first body has an opening and the multiple metal strips are arranged around a circumference of the opening and disposed on an inner wall of the opening. The first magnet is arranged by one side of the opening. The block includes a second body and a protrusion protruding from the second body. The protrusion is adapted to enter the opening and interfere with the metal strips to spread open the metal strips.

Description

Button assembly fixture and alignment method

The present invention relates to a jig and an alignment method, and in particular to a key assembly jig and an alignment method for centering a key in a key opening of a panel.

Traditional assembly jigs use metal clamps or push rods to fix the product, and use transparent covers as guides for assemblers to lock screws.

However, the traditional metal fixtures used in assembly jigs have large tolerances, which results in insecure product fixation and the screws being easily screwed crooked. In addition, the transparent cover is fixed with metal parts, so there is also a problem of large dimensional tolerances, which makes it difficult to put the product into the jig during assembly. Furthermore, the assembly of the top cover and the button lacks a positioning structure, which also has the problem of easy shaking after assembly.

The present invention provides a key assembly fixture capable of centering a key in a key opening of a panel.

The present invention provides a method for centering a key in a key opening of a panel.

A key assembly jig of the present invention includes a base and a top block. The base includes a first base body, a plurality of springs and a first magnet. The first base body has an opening, the springs are arranged on the inner wall of the opening along the circumferential direction of the opening, and the first magnet is arranged on one side of the opening. The top block includes a second base body and a convex portion protruding from the second base body, the convex portion is suitable for entering the opening and interfering with the springs so that the springs are pushed open.

In one embodiment of the present invention, the first base has a top surface and a supporting portion protruding from the top surface.

In an embodiment of the present invention, the first base further has a limiting column arranged on the supporting portion.

In one embodiment of the present invention, four springs are further provided on the first base, and the first end of each spring is connected to the first base.

In one embodiment of the present invention, the second end of each spring is connected to the second base, and the first base has a bottom surface facing the top block, and the spring is arranged on the bottom surface.

In one embodiment of the present invention, the first base has four receiving grooves recessed from the bottom surface, and the springs are correspondingly arranged in the receiving grooves.

In one embodiment of the present invention, each spring sheet has a first portion, a second portion and a third portion, wherein the second portion is connected between the first portion and the third portion, and in the radial direction of the opening, the distance between the third portions of any two opposite spring sheets is greater than the distance between the first portions.

In one embodiment of the present invention, a top cover is further included, wherein the top cover has a second magnet, and the second magnet is magnetically attracted to the first magnet to align the top cover with the base.

In one embodiment of the present invention, the base further has a limiting column, and the top cover has a limiting groove, and the limiting column and the limiting groove are arranged corresponding to each other.

The present invention provides an alignment method comprising at least the following steps: providing a key assembly jig and a panel, wherein the panel has a key opening, the key assembly jig comprises a base and a top block, the base comprises a first base body, a plurality of springs and a first magnet, the first base body has an opening, the springs are arranged in the opening along the circumferential direction of the opening, the first magnet is arranged on one side of the opening, the top block comprises a first base body, a plurality of springs and a first magnet, the first base body has an opening, the springs are arranged in the opening along the circumferential direction of the opening, the first magnet is arranged on one side of the opening, The keypad comprises a second base and a convex portion protruding from the second base; the panel is placed on the first base, and the key opening corresponds to the opening of the first base, wherein a portion of the elastic sheet extends into the key opening and abuts against the inner wall of the key opening; the convex portion enters the opening to prop up the elastic sheet, and the key is placed in the key opening; and the interference of the convex portion of the top block with the elastic sheet is released, so that the elastic sheet clamps the key.

In one embodiment of the present invention, the base and the top block are separate components.

In one embodiment of the present invention, the key assembly fixture further includes a spring, and the spring is connected between the base and the top block.

In one embodiment of the present invention, the protrusion has a first side circumferential surface, a second side circumferential surface and a guide surface, the diameter of the second side circumferential surface is greater than the diameter of the first side circumferential surface, and the guide surface is connected between the first side circumferential surface and the second side circumferential surface.

In one embodiment of the present invention, each spring sheet has a first portion, a second portion and a third portion, wherein the second portion is connected between the first portion and the third portion, and in the radial direction of the opening, the distance between the third portions of any two opposite spring sheets is greater than the distance between the first portions.

In one embodiment of the present invention, when the protrusion enters the opening and contacts the elastic sheet, the first side circumferential surface contacts the first portion, and the guide surface contacts the second portion.

In one embodiment of the present invention, a top cover is further provided, wherein the top cover has a second magnet, and the second magnet is magnetically attracted to and aligned with the first magnet.

In one embodiment of the present invention, the panel has a first alignment hole, the key has a second alignment hole, and the locking member passes through the first alignment hole and is locked into the second alignment hole.

Based on the above, in the key assembly jig and the assembly method using the key assembly jig of the present invention, a spring sheet is set in the key opening to clamp the key set in the key opening, and the spring sheet applies a uniform force to the key, so that the key can be centered in the key opening for assembly.

FIG1A is a three-dimensional schematic diagram of the key assembly jig of the present invention, FIG1B is a perspective diagram of FIG1A, and FIG1C is a schematic diagram along the A-A section line of FIG1A. Please refer to FIG1A, FIG1B and FIG1C simultaneously. The key assembly jig 1 of the present embodiment is used to center the key 2 (shown in FIG4A) in the key opening 31 (shown in FIG4A) of the panel 3 (shown in FIG4A) for assembly. The key 2 assembled on the panel 3 can be surely centered in the key opening 31 of the panel 3, and the problem of the key 2 shaking in the key opening 31 of the panel 3 due to assembly tolerance can be avoided.

The key assembly fixture 1 includes a base 11 and a top block 12. The base 11 includes a first base 111, four springs 112, a plurality of springs 113 and a first magnet 114. The first base 111 has an opening 1112, the springs 113 are arranged on the inner wall of the opening 1112 along the circumferential direction of the opening 1112, the springs 112 are arranged on the first base 111, and the first magnet 114 is arranged on one side of the opening 1112. The top block 12 includes a second base 121 and a convex portion 122 protruding from the second base 121, the convex portion 122 is suitable for entering the opening 1112 and interfering with the springs 113, so that the springs 113 are pushed open.

In this embodiment, the first base 111 has a top surface 111 a and a supporting portion 1114 protruding from the top surface 111 a , and the first magnet 114 is disposed at the supporting portion 1114 .

The spring 112 is disposed at the bottom surface 111b of the first base 111 facing the top block 12, and the spring 112 is located at the four corners of the first base 111. The first end 112a of each spring 112 is connected to the first base 111, and the second end 112b is connected to the second base 121. Specifically, the first base 111 has four receiving grooves 111c recessed from the bottom surface 111b, and the spring 112 is correspondingly disposed in the receiving grooves 111c. The length of the spring 112 when not under pressure can be greater than the depth of the receiving groove 111c. In other words, the second end 112b of the spring 112 protrudes from the bottom surface 111b of the first base 111.

By connecting the spring 112 between the first base 111 and the second base 121, the base 11 and the top block 12 can be connected to each other in structure to form a component for easy operation. However, in other embodiments, the spring 112 may not be used or the first base 111 and the second base 121 may be connected together without a component, so that the base 11 and the top block 12 are separate components independent of each other.

Based on the above, the spring pieces 113 are symmetrically arranged on the inner wall of the opening 1112 along the circumferential direction of the opening 1112 with the center point C of the opening 1112 as the symmetry center. Each spring piece 113 has a first portion 1131, a second portion 1132 and a third portion 1133, and along the axial direction X of the opening 1112, the second portion 1132 is connected between the first portion 1131 and the third portion 1133, and in the radial direction R of the opening 1112, the distance between the third portions 1133 of any two opposite spring pieces 113 is greater than the distance between the first portions 1131.

The key assembly jig 1 can be used to center the key 2 in the key opening 31 of the panel 3 for assembly.

FIG. 2 is a schematic diagram showing a panel being placed on a key assembly jig 1 .

Please refer to FIG. 1A, FIG. 1B and FIG. 2 at the same time, provide a panel 3, and place the panel 3 on the first base 111 of the base 11, wherein one side of the panel 3 abuts against the supporting portion 1114 protruding from the top surface 111a of the first base 111, and the key opening 31 of the panel 3 corresponds to the opening 1112 of the first base 111. Here, the key opening 31 corresponding to the opening 1112 means that the key opening 31 is connected to the opening 1112. At this time, the first portion 1131 of the elastic sheet 113 extends into the key opening 31 and abuts against the inner wall of the key opening 31.

3A to 3E are schematic diagrams of the assembly process of centering the key in the key opening 31 of the panel 3 .

3A , the base 11 is close to the top block 12, so that the protrusion 122 of the top block 12 enters the opening 1112 to push open the spring sheet 113. At this time, the spring 112 is compressed to store the elastic restoring force.

Specifically, the protrusion 122 has a first side circumferential surface 1221 , a second side circumferential surface 1222 and a guide surface 1223 . The diameter R2 of the second side circumferential surface 1222 is greater than the diameter R1 of the first side circumferential surface 1221 , and the guide surface 1223 is connected between the first side circumferential surface 1221 and the second side circumferential surface 1222 .

After the protrusion 122 of the top block 12 enters the opening 1112, as the protrusion 122 enters deeper into the opening 1112, the first side circumferential surface 1221 of the protrusion 122 contacts the first portion 1131, and the guide surface 1223 then contacts the second portion 1132. The second side circumferential surface 1222 enters the range of the third portion 1133 of the elastic sheet 113, and the first side circumferential surface 1221 of the protrusion 122 contacts the first portion 1131 and the guide surface 1223 contacts the second portion 1132, thereby pushing the elastic sheet 113 open.

The stretching of the elastic sheet 113 mentioned here means that the elastic sheet 113 is deformed after being subjected to force, so that the distance between the first portions 1131 of the two elastic sheets 113 disposed opposite to each other becomes larger.

As shown in FIG. 3B , the key 2 is placed between the stretched-out elastic sheets 113 , and the first portion 1131 of the elastic sheet 113 contacts the side wall 21 of the key 2 .

As shown in FIG3C , the force applied to the base 11 is removed, and the base 11 and the top block 12 move in directions away from each other by the elastic restoring force of the spring 112, so as to release the interference between the protrusion 122 of the top block 12 and the spring sheet 113. At this time, the stretched spring sheet 113 returns to its original state to clamp the key 2. The spring sheet 113 applies a uniform elastic force to the key 2, so that the key 2 can be kept centered in the key opening 31.

As shown in FIG3D , a top cover 13 of the key assembly jig 1 is provided, and the top cover 13 is placed on the base 11 along the first direction D1 from the top of the key assembly jig 1, and the panel 3 and the key 2 are sandwiched between the top cover 13 and the base 11. The top cover 13 has a second magnet 131, and when the top cover 13 is placed on the base 11, the second magnet 131 and the first magnet 114 are magnetically attracted to each other so that the top cover 13 and the base 11 are aligned. In addition, the top cover 13 also has a limiting groove 132, and the base 11 is provided with a limiting column 1115 at the supporting portion 1114. When the top cover 13 is placed on the base 11 along the first direction D1, the limiting column 1115 and the limiting groove 132 are arranged corresponding to each other to achieve the guiding and limiting effects.

Please refer to FIG. 3D and FIG. 3E at the same time. After the top cover 13 and the base 11 are aligned, the locking member 14 passes through the through hole 133 of the top cover 13 and the first alignment hole 33 of the panel 3 along the second assembly direction D2 and locks into the second alignment hole 23 of the key 2 to lock the key 2 and the panel 3 together.

FIG4A is a schematic diagram of a key after being centrally assembled on a panel 3, and FIG4B is a schematic diagram of FIG4A from another viewing angle. Please refer to FIG4A and FIG4B simultaneously, after the top cover 13 and the base 11 of the key assembly fixture 1 are removed, the key 2 locked together can be centrally located in the key opening 31 of the panel 3, and the problem of the key 2 shaking easily relative to the panel 3 after assembly can be avoided.

In summary, the present invention provides a novel key assembly jig, which can center the key in the key opening of the panel for assembly by applying uniform elastic force to the spring sheet, and the assembled key can be accurately centered in the key opening of the panel, and the problem of the assembled key shaking relative to the panel can be avoided.

1: Button assembly fixture 11: Base 111: First seat 111a: Top surface 111b: Bottom surface 111c: Receiving groove 1112: Opening 1114: Supporting part 1115: Limiting column 112: Spring 112a: First end 112b: Second end 113: Spring sheet 1131: First part 1132: Second part 1133: Third part 114: First magnet 12: Top block 121: Second seat 122: Protrusion 1221: First side circumferential surface 1222: Second side circumferential surface 1223: Guide surface 13: Top cover 131: Second magnet 132: Limiting groove 133: Perforation 14: Locking fixture 2: Button 21: Side wall 23: Second alignment hole 3: Panel 31: Button opening 33: First alignment hole C: Center point R: Radial R1, R2: Diameter X: Axial

FIG. 1A is a three-dimensional schematic diagram of the key assembly jig of the present invention. FIG. 1B is a perspective view of FIG. 1A. FIG. 1C is a schematic diagram along the A-A section line of FIG. 1A. FIG. 2 is a schematic diagram of a panel placed on the key assembly jig. FIG. 3A to FIG. 3E are schematic diagrams of the assembly process of a key centered in a key opening of a panel. FIG. 4A is a schematic diagram of a key after being assembled in a panel in a centered manner, and FIG. 4B is a schematic diagram of FIG. 4A from another viewing angle.

1: Button assembly fixture

11: Base

111: The first seat

111a: Top

111b: Bottom

1112: Open your mouth

1114: Supporting part

1115: Limiting column

113: Shrapnel

114: The first magnet

12: Top block

C: Center point

Claims (17)

A key assembly fixture comprises: a base, comprising a first base, a plurality of springs and a first magnet, wherein the first base has an opening, the springs are arranged on the inner wall of the opening along the circumferential direction of the opening, and the first magnet is arranged on one side of the opening; and a top block, comprising a second base and a convex portion protruding from the second base, wherein the convex portion enters the opening and interferes with the springs so that the springs are pushed open. A key assembly fixture as described in claim 1, wherein the first base has a top surface and a supporting portion protruding from the top surface. A key assembly fixture as described in claim 2, wherein the first base body also has a limiting column arranged on the supporting portion. The key assembly fixture as described in claim 1 also includes four springs disposed on the first base, wherein a first end of each of the springs is connected to the first base. A key assembly jig as described in claim 4, wherein a second end of each of the springs is connected to the second base, and the first base has a bottom surface facing the top block, and the springs are arranged on the bottom surface. A key assembly jig as described in claim 5, wherein the first base has four receiving grooves recessed from the bottom surface, and the springs are correspondingly arranged in the receiving grooves. A key assembly jig as described in claim 1, wherein each of the spring sheets has a first portion, a second portion and a third portion, wherein the second portion is connected between the first portion and the third portion, and in the radial direction of the opening, the distance between the third portions of any two opposite spring sheets is greater than the distance between the first portions. The key assembly fixture as described in claim 1 further includes a top cover, wherein the top cover has a second magnet, and the second magnet is magnetically attracted to the first magnet to align the top cover with the base. A key assembly fixture as described in claim 8, wherein the base further has a limiting column, and the top cover has a limiting groove, and the limiting columns and the limiting grooves are arranged corresponding to each other. A method for alignment includes: Providing a key assembly fixture and a panel, the panel having a key opening, the key assembly fixture including a base and a top block, the base including a first base, a plurality of springs and a first magnet, the first base having an opening, the springs being arranged in the opening along the circumferential direction of the opening, and the first magnet being arranged on one side of the opening, the top block including a second base and a convex portion protruding from the second base; Placing the panel on the first base, and the key opening corresponding to the opening of the first base, wherein a portion of the springs correspondingly extends into the key opening and abuts against the inner wall of the key opening; The protrusion enters the opening to push open the springs, and a key is placed in the key opening; and the protrusion of the top block is released from interfering with the springs, so that the springs clamp the key. A method of alignment as described in claim 10, wherein the base and the top block are separate components from each other. A method of alignment as described in claim 10, wherein the key assembly fixture further includes four springs, which are connected between the base and the top block. A method for alignment as described in claim 10, wherein the protrusion has a first side circular surface, a second side circular surface and a guide surface, the diameter of the second side circular surface is larger than the diameter of the first side circular surface, and the guide surface is connected between the first side circular surface and the second side circular surface. A method for alignment as described in claim 13, wherein each of the spring sheets has a first portion, a second portion and a third portion, wherein the second portion is connected between the first portion and the third portion, and in the radial direction of the opening, the distance between the third portions of any two opposite spring sheets is greater than the distance between the first portions. A method of alignment as described in claim 14, wherein when the protrusion enters the opening and contacts the spring sheets, the first side circumferential surface contacts the first portion, and the guide surface contacts the second portion. The alignment method as described in claim 15 further includes providing a top cover, wherein the top cover has a second magnet, and the second magnet is aligned with the first magnet by magnetic attraction. In the alignment method as described in claim 16, the panel has a first alignment hole, the key has a second alignment hole, and a locking member passes through the first alignment hole and locks into the second alignment hole.

Images